Operating Instructions Technical manual
Contents
1. uus 2un00nnnnnnnnnnnnnnnnnn anne 17 5 1 Integrated Voltage Detecting System IVIS u02220000ne rennen 17 5 2 Pluggable voltage detection system u00240022s0nenn nennen 17 5 3 Phase comparators 222u22400020sennnnennnnennnnnnnnnnnnnn nase nenne nennen ennenn 17 6 MO RON ea nee a 18 6 1 Operator interfaces for manual operation c ccecceeeeeeeeeeeeees 18 6 2 Interlocks uuosuuessnsennanennnnennnnnnnnnnnnnnnnnnnnnnnennnnennnnennnnennnennnnennnnenn 20 6 2 1 Internal mechanical interlocks of the panel 20 6 2 2 Mechanical lock out with cylinder lock optional see also Fig 16 OFO ee 20 6 2 3 Mechanical interlock with padlocks optional 20 6 2 4 Electromagnetic interloCkS ccccccseccesseeeeeseeeeeeeeeeeeeeeeseeeeees 21 6 2 5 Table of mechanical interlOCkS ccccceccseseceeeeeeeeeseeeseeeeees 22 6 3 Operating specifications cc eccccceeccecececeeeeeeeaeeeeaeeeeesaeeeeaeeees 22 6 4 Operation Circuit Dreaker cccccecccccecceeeeeeeseeeeeseeeeeseeeeesneeeees 23 6 4 1 Charging the circuit breaker s energy storing device 23 6 4 2 Switching operations on the circuit breaker 24 6 4 3 Position indicators on circuit breaker and possible operating SSCS Sire aise tintuntoremneracaaescasasavineradasaeeanionsnsnnoasnaieanstebetamnesactenant2. ON or O earthed position approx 95 m When end position is reached the lock pin must latch again Pull detachable lever off after switching operation a Insert and lock cable compartment cover see Assembly Instructions O earthed AGS 531 521 01 GMA AGS 531 521 01 8 Disconnecting the voltage transformer contd Disconnecting device for voltage transformer on the busbar Warning Disconnecting devices for voltage transformers can only be actuated in de energized condition Make sure to isolate the busbar in any case from the power supply Actuate disconnecting device Isolate busbar from the power supply m Remove cover from instrument recess a Insert detachable lever for earthing switch 2 into its insertion opening m Pull lock pin 1 Swing detachable lever 2 speedily as far as it will go to its stop to ON or O earthed position approx 95 When end position is reached the lock pin must latch again Check position indicator O or l Pull detachable lever off after switching operation m Remount cover of instrument recess Fig 51 Removing the cover from the instrument recess Fig 52 Fig 53 Switching the voltage transformer OFF Switching the voltage transformer ON 1 Position indicator reads 1 Position indicator reads Voltage transformer OFF O Voltage transformer ON I 2 Lock pin 2
3. charged is indicated by the position indicator If the motor starts during this process this does not constitute a risk Remove crank and keep it in a safe place Fig 20 Charge the circuit breaker s energy storing device closing spring manually 1 Energy storing device charged i 23 Schneider GMA 6 Operation contd 6 4 2 Switching operations on the circuit breaker Switching ON Closing m Push the ON button Actuate closing release The energy storing device indicates released The position indicated by the switch position indicator is ON Important i The energy storing device can be charged again immediately manually after ON actuation When the supply voltage is on the energy storing device is charged automatically via the motor Switching OFF Opening Push OFF button or Actuate opening release or by secondary release or undervoltage release Position indicator indicates the OFF position Fig 21 Circuit breaker Switching ON OFF 6 4 3 Position indicators on circuit breaker and possible operating sequences Position indicator Energy storing Position indicator device closing Circuit breaker Fe Possible Opening spring operating sequence WM released is charged charged is re C ON Close O OFF Open 24 Schneider AGS 531 521 01 GMA AGS 531 521 01 6 Operation conta Switching operations on the disconnector Important i Moto
4. Comply with the manufacturer s information regarding the earthing device and the earthing adapter AGS 531 521 01 GMA 6 Operation conta Initial situation Feeder EARTHED Fig 36 Connecting the earthing device Mount earthing adapter to cable connection Connect the earthing device Fig 37 Earthing the busbar a Switch earthing switch OFF A Switch disconnector B ON alt Switch circuit breaker C ON Fig 38 De earthing busbar See Fig 39 a Switch circuit breaker OFF D Switch disconnector B OFF Switch earthing switch A ON m Remove earthing device and earthing adapter Connect high voltage cable to cable connection in surge proof condition 6 8 2 Earthing the busbar by means of the bus section coupler er a p na SUSLON Circuit breaker OFF Both disconnectors OFF Both earthing switches OFF AGS 531 521 01 Schneider 33 Electric GMA 34 Schneider 6 Operation conta L R Earth left hand busbar section L Switch disconnector left hand panel A ON Switch circuit breaker left hand panel B ON AI Switch earthing switch right hand panel C ON Fig 39 Earthing de earthing left hand busbar section De earthing left hand busbar section See Fig 39 Switch earthing switch right hand panel C OFF Switch circuit breaker left hand panel B OFF Switch disconne
5. Main alarm red Do not actuate switch disconnector any longer ContactService Center 16 Schneider AGS 531 521 01 eElectric GMA Fig 10 IVIS display The IVIS display is located in the instrument recess below the lowvoltage compartment Fig 11 Voltage indicator unit HR ST Manufacturer Horstmann GmbH Fig 12 Socket contacts for HR system AGS 531 521 01 5 Voltage Detecting Systems VDS 5 1 Integrated Voltage Detecting System IVIS IVIS is an integrated voltage detecting system with an integrated display unit used to determine zero voltage system voltage according to IEC 61243 5 The IVIS system has been designed for maximum operating reliability It does not require supply from an external source It features climateproof encapsulated lectronics and is maintenance free due to permanent monitoring of the indication thresholds Flash arrow symbols on the indicators display the mains voltage still existing within the defined response thresholds Fig 10 The IVIS system does not require the electrical repeat tests common for voltage detection systems Important i For a description of all functions and messages of the IVIS system please refer to the separate Operating Manual IVIS No AGS 531 757 01 5 2 Pluggable voltage detection system The system voltage or the zero voltage state of the outgoing feeders is detected via a separate voltage detection system according to IEC 61243
6. feeder a Cr 0 ee ee 40 8 2 Disconnecting device for voltage transformer on the busbar 41 9 Mantenan Esine nenne euere nee 42 9 1 Safety provisions uuesnesenennssnnnnennnnnnnnennennnnnnnnnnnnennnnnnnnnnnennnnnnnennn 42 9 2 Maintenance schedule ccccccccsseecseeeceeeeseeecceeeecseeeseueesseeenes 42 93 SBIEANING eee ee eee ee 43 9 4 Corrosion PrOoleclion ar nss en 43 9 5 Replacement of components and panels cccccceeceeeseeeeeeeees 43 9 6 Lubrication Instrueli ns u n anseseeienn a 44 9 7 Admissible number of breaking peratiOns ccccccessseeeeeeeeees 45 10 ANNEN een 46 10 1 Auxiliary Products 0 204u0444neenennennennennnnne nenne nnnnne nenne nnennenn nn 46 10 2 Operation accessories us222u002ensennnnnennnnnennnnne nenne nennen nnnnnnnnnnn 46 AGS 531 521 01 GMA AGS 531 521 01 Introduction This Technical Manual cannot describe every imaginable individual case or every customer specific version of the product For information which is not included in this manual please contact the manufacturer As our products are subject to continuous further development we reserve the right to make changes regarding the standards illustrations and technical data described in this Technical Manual All dimensions specified in this manual are in millimeters Purpose and target group This Technical Manual describes the operation of gas insulated medium volt
7. 5 Socket contacts for the indicators are located in the instrument recess below the low voltage compartment Capacitive voltage presence indicating systems of all the approved manufacturers can be used Important Comply with the manufacturer s Operating Manual of the voltage indicators used All three phases L1 L2 and L3 must always be checked together Close non used socket contacts using a cap 5 3 Phase comparators Important Before connecting live switchgear components for the first time always check phase coincidence If IVIS is used phase comparison can be performed by means of the phase comparator MS 100 Fig 13 ref no AGS C26320 01 Phase comparators are optionally available and not included in the scope of supplies Fig 13 Phase comparator MS 100 i 17 Schneider GMA 6 Operation 6 1 Operator interfaces for manual operation Fig 14 Operator interface Circuit breaker 1 Nameplate 2 Opening for operation of the disconnector 3 Position indicator of disconnector 4 Circuit breaker position indicator DISCHARGED CHARGED 5 Circuit breaker switch position indicator 6 Circuit breaker OFF pushbutton 7 Circuit breaker ON pushbutton 8 Circuit breaker operations counter 9 Insertion port for mechanical charging of the circuit breaker s energy storing device 10 Unlocking slide for cable compartment cover 11 Position indicator of earthing switch 12 Insertion port for operation of t
8. Hz approx W approx VA Closing release 160 160 Opening release without auxiliary 160 160 spring energy store Opening release with auxiliary 25 spring energy store Undervoltage release 15 Secondary release 12 Blocking coil 12 Motor 200 250 200 250 Please enquire at the manufacturer s for details of the motor s starting current The supply voltage data is required to this effect Times for releases and motor Minimum command time OFF for release 160 W ms 20 for release 25 W ms 50 Minimum command time ON ms 20 Motor charging time for energy storing device Ss lt 12 2 4 Utilization in line with the intended purpose Gas insulated GMA medium voltage switchgear units are exclusively intended for switching and distributing electrical energy They may only be used in the scope of the specified standards and the switchgear specific technical data Any other utilization constitutes improper use and may result in dangers and damage Disclaimer of liability The manufacturer shall not be held responsible for damage which occurs if m instructions in this Technical Manual are not complied with m the switchgear is not operated according to its intended use see above m the switchgear is assembled connected or operated improperly m accessories or spare parts are used which have not been approved by the manufacturer m the switchgear is converted without the manufacturer s approval or if in
9. IP 52 10 Schneider AGS 531 521 01 eElectric GMA AGS 531 521 01 2 Technical data conta 2 6 Environmental and operating conditions GMA is an indoor switchgear which may only be operated under normal operating conditions in acc with IEC 62271 1 regulations Operation under conditions deviating from these is only admissible upon consultation and with the approval of the manufacturer Ambient conditions in accordance with IEC 62271 1 Temperature class minus 5 indoors Ambient temperature min max C 5 40 Average value over 24 hours C lt 35 Average rel air humidity 24 hours 1 month lt 95 s 90 Installation altitude above sea level m lt 1000 1higher values available on request 2 7 Disposal after the end of the service life A material and recycling data sheet can be provided on request for the disposal of series GMA switchgear at the end of its service life Disposal is performed as a service by the manufacturer s Service Center which is subject to a fee The operating equipment contains the fluorinated greenhouse gas SF mentioned in the Kyoto protocol with a global warming potential GWP of 22 200 SF must be recovered and must not be released into the atmosphere When using and handling SF comply with the specifications in the standard IEC 62271 High Voltage Switchgear and Controlgear Part 303 Use and Handling of Sulphur Hexafluoride SF i 11 Schneider GMA 3 Variants overvi
10. an all pole fuse tripping this feature is indicated by an information sign This sign is located near the fuse symbol on the operator interface Important i Melting of the fuse does not trip the switch disconnector In this case the switch disconnector is equipped with a snap action drive SFU and must be switched OFF separately manually or electrically depending on design Replacement of short fuse links in switchgear with a fuse dimension of e 442 mm GMA switchgear with a rated voltage of 24 kV may also be operated with an operating voltage of 12 kV An adapter is available to enable the use of an H V H R C fuse link with the standard dimension for 12 kV dimension e 292 mm for a fuse dimension of e 442 mm The fuse links are not included in the scope of supply Replacement of fuse kits m Clean contact surfaces brand new fuse link adapter and grip end using a non fibrous cloth in case of severe soiling use a cleaning product Apply a thin and uniform film of lubricant KL clean and grease m Introduce the brand new fuse link with contact strip with striker into the grip end contact by turning it slightly Secure fuse link from being removed by tightening clamping screw in the grip end Fasten the adapter on the opposite contact end of the fuse link without striker Fig 43 Lock cam on the grip end in the recess of the insulating tube Fig 42 Attachment of fuse link grip end Fig 44 Assem
11. outside of the enclosure are corrosion protected with lasting effect Damage to the paint scratches and deterioration must be repaired immediately to avoid corrosion Qualification Work Mantainance interval Work to be carried out performed by at least every 4 years or depending on the actual ambient conditions Visual inspection of the switchgear panels m If necessary clean the panels and perform switching tests of the drives see page 40 m Grease drives and perform switching tests after 20 years see page 40 m Check releases blocking coils Staff certified accordingly for the work to be done m once the max admissible number of breaking operations for the switching devices has been reached see page 42 Please contact the manufacturer 1000 mechanical operations of the disconnector or the earthing switch Manufacturer s Service Center 42 Schneider AGS 531 521 01 GMA AGS 531 521 01 9 Maintenance conta 9 3 Cleaning When deposited dirt and humidity are detected the panels must be cleaned in an expert fashion When performing cleaning make sure that the lubrication in the drive mechanisms is not removed If the drive mechanisms are no longer sufficiently lubricated new lubrication must be applied Warning Risk of injuries The drives must not be disassembled for service and maintenance work Slight contamination Clean using a dry lint free cloth Depending on the degree of so
12. specified fuse links Warning Only H V H R C fuse links in accordance with the selection lists have been approved for GMA switchgear panels It is essential to consult the switchgear manufacturer before using non specified fuse links or fuse links made by other manufacturers The company operating the switchgear shall be solely responsible for the use of fuse links which are not defined in the selection lists H v General purpose fuses H v General purpose fuses are recommended for the exceptional case in which the switch disconnector is to be equipped with a snap action drive SFU instead of stored energy mechanism SF so that all pole fuse tripping is impossible 7 5 Replacement of fuses Warning Fuse links may be hot Wear protective gloves Important As the earthing switches are arranged upstream and downstream of the fuses the fuses can be replaced without using insulating equipment m IEC 60282 1 also recommends replacing all three fuse links even if only one of the all pole fuse links in the three phase system has tripped The fuse symbol on the operator interface indicates mechanically if one of the fuses has melted red marking Fig 46 item 1 The switch disconnector is switched OFF automatically by the fuse tripping AGS 531 521 01 GMA AGS 531 521 01 7 Replacement of fuse links contd Transformer outgoing feeder without all pole fuse tripping If the transformer outgoing feeder is designed without
13. 0 part 402 Fuse links in acc with IEC 60282 1 or DIN 43625 striker type medium with mit max initial tripping force of 80 N Specifications of IEC 62271 105 u Max ambient temperature for switchgear 40 C according to IEC 62271 1 identical with max ambient temperature for the switchgear within the housing of a packaged substation in accordance with IEC 62271 202 No transformer operation during an overload condition Temperature rise limits within the switchgear enclosure 7 2 Approved suppliers for H V H R C fuse links The following series made by the H V H R C fuse link suppliers offering integrated striker tripping with temperature limiter feature are admissible Series Supplier H V H R C fuse links with temperature limiter SIBA H V H R C backup fuses with overload protection temperature limiter EFEN H V H R C fuse links type IKUS with thermo striker JEAN MULLER AGS 531 521 01 Schneider 35 ectric GMA 36 Schneider 7 Replacement of fuse links contd 7 3 Dimensions for fuse links The GMA switch disconnector panel with fuses has been designed for the 19 7 following dimensions D or e of the fuse links Type designation Dimensions D or e in mm GMA 12 2 with adapter 24 kV 292 GMA 24 2 N D or e Tr ee VE N Q M striker lt pin 33 2 dimensions in mm 88 max p Fig 41 Dimensions of fuse links 7 4 Use of non
14. Double bit key for opening 5 Fold fuse shutter forward and remove it AGS 531 521 01 GMA AGS 531 521 01 7 Replacement of fuse links contd Checking the all pole mechanical fuse tripping We recommend checking the all pole mechanical fuse tripping with the switch disconnector in position ON after replacing the H V H R C fuse links The all pole mechanical tripping can be checked via the tripping linkage using the tripping pin lt 2 1 mm L gt 80 mm which is pushed as far as it will go through the insertion port of the fuse link cover Fig 48 Checking the all pole mechanical fuse tripping i 39 Schneider GMA Fig 49 Fig 50 Disconnecting device for voltage transformer and insertion port 1 Lock pin 2 Detachable lever 40 Schneider 8 Disconnecting the voltage transformer 8 1 Disconnecting device for the voltage transformer in the outgoing feeder cable Warning Disconnecting devices for voltage transformers can only be actuated in de nergized condition Make sure that the outgoing feeder cable is de nergized on all accounts Actuate disconnecting device a Isolate outgoing feeder cable from the power supply and earth it see page 28 Remove cable compartment cover see Assembly Instructions m Insert detachable lever for earthing switch 2 into its insertion opening m Pull the lock pin 1 Swing detachable lever 2 speedily as far as it will go to its stop to
15. Lock pin 3 Detachable lever 3 Detachable lever i 41 Schneider GMA 9 Maintenance 9 1 Safety provisions Only specialist electricians certified by the manufacturer for maintenance work and who have the required knowledge regarding handling of GMA series medium voltage switchgear are permitted to perform maintenance and cleaning work Warning Refer to the safety provisions on page 9 2 Maintenance schedule We recommend performing a visual inspection of the panels at least every four years depending on the strain to which they are subjected during operation and on the operating conditions Important i In case of humidity and condensation or air pollution dust smoke or corrosive gases the maintenance intervals must be adapted to the actual conditions In case of ambiguities or irregularities please contact the manufacturer s Service Center immediately Insulating gas GMA series panels have a hermetically sealed pressure system in accordance with IEC 62271 200 It does not require servicing over its entire service life Switching devices The components in the cladded high voltage parts of the panel vacuum circuitbreaker disconnector and earthing switch do not require any maintenance either Gas tank The pressure tanks are made of stainless non magnetic steel Warning Neither drill holes into nor open gas tanks Risk of loss of insulating gas Drive mechanisms covers Drive mechanisms and covers
16. Medium Voltage Distribution GMA Gas Insulated Switchgear up to 24 kV Operating Instructions Technical manual No AGS 531521 01 Edition 03 2009 Schneider www schneider electric com ES E ectr C Schneider Electric 35 rue Joseph Monier CS 30323 92506 Rueil Malmaison Cedex France www schneider electric com Manufacturer Schneider Electric Sachsenwerk GmbH Service Should you have any queries as to our service please contact Schneider Electric Sachsenwerk GmbH Schneider Electric All rights reserved to this technical instruction Reproduction and making available of this technical instruction or extracts to third parties are prohibited Only integral reproduction of this technical instruction is permitted with the written permission from Schneider Electric Energietechnik GmbH Sachsenwerk Medium Voltage Electronic copies in e g PDF format or scanned version have the status for information only The only valid version of technical Instructions are always enclosed directly to the product in question by the factory GMA Contents IN FOOUG UO ann 5 Purpose and target group zuueensnenenenennnennnnnennennennennennennennnenennne nennen 5 Reference documents cccccseececeeececeeececeeececsuseeceeeeceueeesaeeesaeeesaeees 5 Terms and symbols used zu22222022000002000000nnnnnnnnnnnnnnnonnnnnennnnne nennen 5 Any questions or suggestions unneeneesen
17. Q O O x Q q O De Oo Z Breaking current A gt Breaking current A Fig 55 Fig 56 Switch disconnector without fuse Transformer feeder with switch disconnector fuse Rated normal current 630 A Rated normal current 200 A AGS 531 521 01 Schneider F Electric 45 GMA 46 10 Annex 10 1 Auxiliary products Only the following auxiliary products may be used which can be purchased from the manufacturer The use of other auxiliary products is not admissible Warning Risk of injury if the auxiliary products are handled improperly Comply with the safety data sheets of the auxiliary products Auxiliary product Ref no Cleaning agent 1 l can S 008152 Lubricant KL 0 5 kg can ST 312 111 835 Liquid lubricant FL 0 5 I can S 008 153 Touch up pen RAL 7044 silk grey 50 ml S 009 561 Touch up pen special paint specify colour shade S 009 562 10 2 Operation accessories Important These accessories are supplied together with the panel The panel may only be operated by means of these accessories Accessories Ref no Detachable lever for switch disconnector and disconnector Detachable lever for earthing switch and voltage transformer disconnecting device Double bit key for low voltage compartment and for opening closing the fuse cover Crank to charge the energy storing device AGS 617 831 01 AGS C26 267 01 AGS C01 133 01 AGS 434 101 01 Tripping pin to ch
18. admissible parts are attached No liability is accepted for parts provided by customers e g current transformers AGS 531 521 01 Schneider 9 G eElectric GMA 2 Technical data contd 2 5 Applied standards GMA switchgear units are metal enclosed u SF insulated type tested m tested for internal faults dimensioned for indoor installation GMA switchgear units meet the following standards and regulations Designation ae aN standard standard l IEC 62271 1 Switchgear EN 62271 200 Internal arc classification IAC IEC 62271 200 EN 62271 200 Circuit breaker IEC 62271 100 EN 62271 100 Earthing switch IEC 62271 102 EN 62271 102 Disconnector IEC 62271 102 EN 62271 102 Switch disconnector IEC 60265 1 EN 60265 1 Switch fuse disconnector combination IEC 62271 105 EN 62271 105 Current transformers IEC 60044 1 EN 60044 1 Voltage transformers IEC 60044 2 EN 60044 2 Voltage Detecting Systems IEC 61243 5 EN 61243 5 Protection against acci dental contact foreign bodies and water 1720522 EN 60529 Installation IEC 61936 1 HD 637 S1 Operation of electrical equipment EN 50110 ai gas sulphur hexafluoride IEC 60376 EN 60376 Use and handling of sulphur hexafluoride SF Era g Degrees of protection against accidental contact and foreign objects according to IEC 60529 Main electric circuits IP 65 Drives IP 2X1 Low voltage compartment IP 3X Cable compartment IP 3X optional IP 5X 2 optional
19. age switchgear units of the GMA series It is an integral part of the product and must be stored so that it is readily accessible at all times for and can be used by persons who are to work on the switchgear If the switchgear is sold to new owners they must receive this document along with the switchgear This Technical Manual is exclusively intended for specialist electricians who have been certified for the GMA series training certificate Reference documents The following additional documents must be complied with m purchase agreement with the stipulations regarding the switchgear specific equipment and the legal details m the appropriate switchgear specific circuit diagrams documentation u Assembly Instructions for GMA series no AGS 531 526 01 m the Operating Manuals of the devices installed in the switchgear e g IVIS devices in low voltage compartment a the Switchgear Configuration GMA m the Technical Manual for the use and handling of the insulating gas sulphur hexafluoride SF no AGS 535 051 01 Selection lists for H V H R C fuses of approved suppliers can be provided on request Terms and symbols used This manual uses certain terms and symbols They warn about dangers or provide important information which must be complied with in order to avoid danger to persons and damage to equipment Warning This danger symbol warns about dangerous electrical voltage Contact with voltage may result i
20. bly of short fuse links Fig 45 Assembly of short fuse links i 37 Schneider GMA 38 Schneider 7 Replacement of fuse links contd Description of the steps for fuse replacement Switch the earthing switch ON m Unlock the fuse with cover and open compartment double bit key Fold fuse compartment cover forward and down and remove it Pull grip end with fuse link out without turning it Remove grip end with fuse link using both hands m Release clamp screw in the grip end Pull fuse link out of the grip end by turning it slightly m Prepare fuse link for insertion o Clean contact surfaces on the grip end and on the brand new fuse link using a non fibrous cloth in case of severe soiling use a cleaning product o Apply a thin and uniform coat of lubricant KL o Introduce the contact end with striker of the brand new fuse link into the contact of the grip end by turning it slightly o Secure fuse link from being removed by tightening clampscrew in the grip end Push grip end with fuse link inwards without turning it m The cam on the grip end must engage in the recess of the insulating tube see Fig 43 Reinsert fuse cover close it using the double bit key and lock it Press interlocking slide 3 down Fig 46 Fig 47 Replacement of fuses Removing the fuse link 1 Fuse tripping indicator red 2 Earthing switch ON 3 Unlock fuse cover 4
21. ching operations on the earthing switch Initial situation Switch disconnector OFF Earthing switch OFF Switching ON manually Actuate interrogating lever to the left to release the appropriate insertion port a Insert actuating lever and move it clockwise Remove actuating lever Switching OFF manually Actuate interrogating lever to the left to release the appropriate insertion port a Insert actuating lever and move it counter clockwise Remove actuating lever Fig 25 Earthing switch Switching ON OFF i 27 Schneider GMA 28 Schneider 6 Operation conta 6 6 Operation switch disconnector panel with fuses Switching operations on the switch disconnector Warning If the main alarm of the pressure gauge is issued the switch disconnector must not be operated Switching ON manually Actuate interrogating lever to the right to release the appropriate insertion port Actuate detachable lever speedily to the left until the breaker mechanism has latched approx 95 thus the opening spring is charged Subsequently actuate detachable lever speedily to the right approx 115 until closing is complete at the same time the closing spring is charged and set free m Remove detachable lever immediately afterwards Switching OFF manually Push interrogating lever to the right to release the appropriate insertion port m Insert detachable lever Actuate detachable lever speedily t
22. ctor left hand panel A OFF Earthing right hand busbar section R rc Switch disconnector right hand panel F ON Switch earthing switch left hand panel E ON lh I Fig 40 Earthing de earthing right hand busbar section De earthing right hand busbar section See Fig 40 Switch earthing switch left hand panel E OFF Switch disconnector right hand panel F OFF AGS 531 521 01 GMA 7 Replacement of fuselinks 7 1 Selection data for H V H R C fuse links For the protection of distribution transformers exclusively H V H R C backup fuse links with integrated temperature limiter may be used for gas insulated GMA switchgear Due to the temperature limiter in case of overload of the H V H R C fuse links in the presence of inadmissible overload currents m H V H R C fuse links damaged previously there will be a shut off by the switch disconnector This prevents thermal overloading of the fuse carrier Ordering data The following data must be specified in the Purchase Order Transformer rated power a Transformer operating voltage Rated current of the selected H V H R C fuse links Selection lists and applicable standards Selection lists of approved suppliers for H V H R C fuses can be provided as required These selection lists take the following standards and regulations into account Protection of distribution transformers in accordance with IEC 60787 VDE 067
23. e panel it is essential that you comply with the following instructions Warning Before starting work on high voltage components de energize the system verify it for zero voltage and earth the system in accordance with the applicable safety rules pursuant to EN 50110 1 Warning After removal of covers operator safety in accordance with IEC 62271 200 may be restricted if the appropriate part of the switchgear unit has not been isolated from the power supply Warning Before performing work in the drive area of the switchgear panels switch off the supply voltage and prevent it from being switched ON again Warning There is a risk of injury when working on the drive mechanism Before commencing work release the energy storing device by o the OFF ON OFF Open Close Open operating sequence on the circuit breaker o Closing via the make proof earthing switch Behaviour in case of incidents or accidents For the case of an internal fault the GMA switchgear features pressure relief ports which prevent the panels and the switchgear unit from bursting In case of fire or of internal faults toxic and caustic decomposition products may be produced Comply with the locally applicable accident and safety provisions In case of personal injury take first aid measures or cause them to be taken AGS 531 521 01 GMA AGS 531 521 01 2 Technical data 2 1 Nameplate The type designation of the switchgear panels refer to namep
24. eck 3 pole fuse tripping AGS 085 562 01 AGS 531 521 01 Appendices AGS 531 521 01 Notes Schneider 47 Schneider Electric 35 rue Joseph Monier CS 30323 92506 Rueil Malmaison Cedex France RCS Nanterre 954 503 439 Capital social 896 313 776 www schneider electric com AGS 531 521 01 As standards specifications and designs change from time to time please ask for confirmation of the information given in this publication N This document has been printed LY on ecological paper Publishing Schneider Electric Design Schneider Electric Printing 02 2011 2011 Schneider Electric All rights reserved
25. ennenennennnennnnnnnnnnennnnnnnnnnnnnennnnnnn 5 1 Safety provisions nase 6 2 WOCIAIC ANC 7 DRRRPRRENRERNPEREEPEREEFPEEREEEEREDEELENEEEFSEEENENEONNEEDEEEEREREEEEREEWEEEIE 7 2 1 Nameplate u uu020unennneennnennnnennnnonennnnnnne nenne nenn nenn nenne nnnnennnnen nn 1 2 2 Ratings of the GMA series cccecccccseeceecceeeeeeceesseeeseaseeessaaaeeess 8 2 3 Technical data for electrical control and operating devices 8 2 4 Utilization in line with the intended PurpOSe cecceeeeeeeeeeeeeees 9 2 5 Applied Standards ccccccccceeccceececeeeeeeeeeaeeeeaeeeeaeeeeseeesseeesseeesees 10 2 6 Environmental and operating conditions ccccceeeeeeeeeeeeeeee ees 11 2 7 Disposal after the end of the service life ccceeecceeseeeeeeeeeeeeees 11 3 Variants Overview unaneenanunnannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 12 3 1 Circuit breaker panel GMA cccccccccseecceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 12 3 2 Basic switchgear panels u222200224002000 nenne nnnnennnnennnen nennen 13 4 Insulating gas monitoring uurrsnnnnnnnnnnnnnnnnnnn nn nn nn nnnn nun 14 4 1 Gas compartment diagram uusn444usennennneennennne nennen nnennne nenn 14 4 2 Technical Gala nennen rennen 15 4 3 Pressure AUGE Se ne Re ea nen 15 4 4 Measures to be taken at the various warning thresholds 16 5 Voltage Detecting Systems VDS
26. erlock flaps for ON OFF pushbutton 2 Insertion port for earthing switch blocked disconnector analogous AGS 531 521 01 GMA AGS 531 521 01 6 Operation conta 6 2 4 Electromagnetic interlocks Electromagnetic blocking coils can be used for inter panel as well as intrapanel interlocks The insertion openings for disconnector and earthing switch by the interrogation slide are prevented from being released The circuit breaker s ON and OFF pushbuttons are blocked Important o If no blocking coils are being used for the locking devices a mechanical lock out with cylinder or U lock must be provided o In case of failure of the supply voltage all electrical interlocks are in their locked position Measure Re establish supply voltage Blocking coil required if Interlock function motor drive on disconnector ON pushbutton of circuit breaker Bus section coupler m ON OFF pushbutton of circuit breaker m Interrogation slide for earthing switch in circuit breaker panel m Interrogation slide for disconnector and earthing switch in bus riser panel all disconnectors in the outgoing feeder panels or additional couplers bus section coupler in switchgear left busbar section right busbar section Cea RCE __ blocking coil Fig 18 Blocking coil interlocks in GMA switchgear with bus section coupler Fig 19 Blocking coils in a circuit breaker panel 1 Blocking coil on ON pushb
27. ew 3 1 Circuit breaker panel GMA Fig 2 Circuit breaker panel with current and voltage transformers panel width 600 mm 1 Busbar connectors in the coupling tank end tank shown right hand side left hand side analogous Circuit breaker Toroidal core current transformer Disconnecting device for voltage transformer optional Voltage transformer optional Adjustable cable supports Earthing link bar Cable compartment cover Cable connection three fold combination 10 Manual operator interface 11 Instrument niche 12 Voltage detection systems 13 Pressure gauge temperature compensated 14 Low voltage compartment with control device 15 Busbar 16 Disconnector 17 Earthing switch OOnND OO BW PD Electric 12 Schneider AGS 531 521 01 GMA 3 Variants overview conta 3 2 Basic switchgear panels riga SS Fig 4 Switchgear panel with circuit breaker Switchgear panel with circuit breaker voltage transformer double cable connection Fig 5 Fig 6 Switchgear panel with switch disconnector Switchgear panel with switch fuse combination AGS 531 521 01 Schneider 13 Electric GMA 4 Insulating gas monitoring 4 1 Gas compartment diagram Acomplete insulating gas compartment always consists of the following functional units Module comprising 1 to 4 panels if applicable one busbar connection tank located at the right end of each module a if applicable busbar termination compartment left hand
28. g devices and drives must not be disassembled for service and maintenance work Warning Refer to the safety provisions on page The closing and opening springs must be released Removing operating cover Once the operating cover has been removed the drive is accessible from the switchgear front end Refer also to the Assembly Instructions Remove the bolts 4 ea from the operating cover m Remove the operating cover by lifting it forward Remount operating cover by reversing the above sequence once maintenance is finished Points of lubrication The drive is completely lubricated at the factory with lubricant KL All surfaces and joints in the circuit breaker disconnector and earthing switch drives which are sliding on each other must be lubricated Important The following elements must not be lubricated Motor a Ball bearings Auxiliary releases Push switches Blocking coils Auxiliary switches Lubrication procedure Lubricant KL for surfaces sliding on each other Clean lubricating points e g using a lint free cloth or a soft paint brush and cleaning agent use sparingly just moisten points of lubrication Apply a thin coat of lubricant using e g a paintbrush Liquid lubricant FL for bearings joints and guide systems Pour drops of liquid lubricant oil can drip feed lubricator into the bearing gap Liquid lubricant gets between the bearing surfaces due to the capillary effect In case of
29. h the GMA series training certificate and the EN 50110 1 standard m Check that the supply voltage is ON m The switchgear can also be actuated manually using the actuating lever crank Important These accessories are supplied together with the panel The panel may only be operated by means of these accessories see page 43 After each switching operation for which you have used an actuating lever a crank remove the actuating lever and store it in the tool board 22 Schneider AGS 531 521 01 GMA AGS 531 521 01 6 Operation conta Warning The ON OFF movements need to be fully completed to their stop Never let off detachable lever before the switching operation has been completed Risk of injury as the lever might rebound if it is not actuated to its mechanical stop i Important While the supply voltage is not available an undervoltage release optional has dropped out a Comply with interlocking conditions in Chapter 6 4 Operation Circuit breaker 6 4 1 Charging the circuit breaker s energy storing device Initial position Circuit breaker OFF Energy storing device released storing device Charging by means of a motor The energy storing device is charged automatically as soon as the supply voltage is available The position indicator of the energy storing device indicates the charged condition Manual charging m Insert crank Move crank clockwise until
30. he earthing switch 13 Mechanical interrogation interlock of insertion ports interrogation slide 14 Mechanical lockout mechanism with lock optional 18 Schneider AGS 531 521 01 Electric GMA AGS 531 521 01 6 Operation conta Fig 15 Operator interface Switch disconnector 1 Nameplate Position indicator of switch disconnector Opening for operation of the switch disconnector Mechanical interrogation interlock of insertion ports interrogation slide Unlocking slide for cable compartment cover Position indicator of earthing switch Insertion port for operation of the earthing switch Mechanical lockout mechanism with lock optional COND OB WD Fig 16 Operator interface Switch disconnec tor with fuse 1 Nameplate 2 Position indicator of disconnector 3 Opening for operation of the disconnector 4 Indication of fuse tripping H V H R C fuses green no fuse tripped red H V H R C fuse tripped Unlocking slide for cable compartment cover Position indicator of earthing switch Insertion port for operation of the earthing switch Mechanical interrogation interlock of insertion ports interrogation slide Mechanical lockout mechanism with lock optional o1 oo CO N OD i 19 Schneider Electric GMA 20 Schneider G Electric 6 Operation conta 6 2 interlocks Warning Complete switchgear interlocking can only be ensured with complete locking devices Important Please no
31. iling replace cloth as often as necessary Severe soiling Use cleaning agent 1 litre can see page 43 The use of other cleaning agents is not admissible m Wear protective gloves Use cleaning agents according to manufacturer s instructions Soak the cloth thoroughly and wipe the insulating components Keep duration of exposure as short as possible Expose the cleaned surface to the air for at least two hours 9 4 Corrosion protection Drive mechanisms and covers have a long term protection against corrosion Any damage to the paint scratches and other damage must be repaired immediately to avoid corrosion Contact the manufacturer s Service Center 9 5 Replacement of components and panels The drive mechanisms current transformers and voltage transformers as well as the testing and monitoring systems can be replaced if necessary Also entire modules can be replaced The following data on the nameplate are relevant for replacement of components or modules or in case of any queries see also page 6 Type designation Serial number m Year of construction Should you have any queries regarding replacement of components or panels please contact the manufacturer s Service Center i 43 Schneider GMA 9 Maintenance contd 9 6 Lubrication instructions Maintenance work may only be performed by specialists who are familiar with the installed switching devices and drive mechanisms they use The switchin
32. inaccessible lubrication points use an extension tube or spray 44 Schneider AGS 531 521 01 GMA 9 Maintenance contd 9 7 Admissible number of breaking perations Type GMA12 25 04 No TD137501 01 IEC 62271 200 Ur 412 kV ir 1250 Alfi Up 75 kV kisc 25 kA Ik Ug 28 kV N Erp E1 Me Pe 0 03 MPa Pae 0 02 MPa me 0 014 MPa Ol O SFe 1 3 kg sealed pressure system IAC AFL 16kA 1s Ua 110VDC IR busbar 1250A Operating and Installation Instructions 531521 531526 sc Number of breaking operations n Breaki ng curre nt log I Medium Voltage Switchgear nergietechnik GmbH Sachsenwerk Fig 54 Circuit breaker Rated normal current A Short circuit breaking current kA The diagram defines exclusively the maximum admissible numbers of breaking operations of the circuit breaker as a function of the rated normal current Ir and of the short circuit breaking current Isc The data for the rated normal current Ir and the short circuit breaking current Isc are indicated on the nameplate O O oO LO LO Number of breaking operations n c ep Cc O eb
33. late specifies the essential technical data The following example shows its composition In case of queries and orders for spare parts the following data on the nameplate must be specified m Type designation Serial number u Year of construction Example Type GMA Rated voltage 12 kV Rated short time current 25 kA 3 s Panel width 450 mm GMA 12 25 04 Fig 1 Nameplate on the operating cover front side of the switchgear panel 1 Type designation Serial number 2 3 Year of construction 4 Technical data maa acres GMA Schneider 2 Technical data conta 2 2 Ratings ofthe GMA series Rated voltage U kV 12 17 5 24 Rated lightning impulse withstand voltage U kV 125 Rated power frequency withstand voltage U kV 38 50 Rated normal current busbar max A 1250 current outgoing feeder panel A 1250 Rated peak withstand current _ max kA 63 Rated short circuit breaking current I_ max kA 25 Rated short time current I max kA 25 3s Rated frequency f Hz 50 2 3 Technical data for electrical control and operating devices The panels have been designed on principle for manual operation The drive mechanisms of the individual switching devices can be equipped depending on the specific customer s model with additional electrical control and operating devices These are characterized in the switchgear specific circuit diagram see switchgear documentation Componen
34. mperature compensated The pressure indication remains constant if the operating mode remains unchanged even if the temperature in the switchgear room changes Variants m Pressure gauge without remote signalling contacts Fig 8 Pressure gauge with remote signalling contacts Fig 9 Fig 8 Fig 9 Pressure gauge without remote signalling Pressure gauge without remote contacts signalling contacts 1 Pointer 1 Pointer 2 Pointer in the green area Ready for 2 Pointer in the green area Ready operation for operation 3 Pointer in the yellow area Prealarm 3 Pointer in the yellow area 4 Pointerin the red area Main alarm Prealarm 4 Pointerin the red area Main alarm Electrical signalling Switching function closes in contact case of a drop in pressure if prealarm is reached main alarm is reached AGS 531 521 01 Schneider 15 ectric GMA 4 Insulating gas monitoring contd 4 4 Measures to be taken atthe various warning thresholds Warning If a main warning occurs switch disconnectors must no longer be actuated As the switch disconnector requires a minimum gas density for correct functioning actuation might result in damage to equipment and injury of persons Pressure gauge display Activities Top up insulating gas and observe the system to see if the prealarm Prealarm yellow reoccurs m Plan ahead for shut off Contact Service Center Isolate module single panel from power supply
35. n port a Insert actuating lever and move it clockwise Remove actuating lever i 25 Schneider GMA 26 Schneider 6 Operation conta Switching OFF manually Actuate interrogating lever to the left to release the appropriate insertion port a Insert actuating lever and move it counter clockwise Remove actuating lever Fig 23 Earthing switch Switching ON OFF 6 5 Operation Switch disconnector panel Switching operations on the switch disconnector Warning If the main alarm of the pressure gauge is issued the switch disconnector must not be operated Important i Motor drive on switch disconnector optional During actuation of the interrogation slide or while the actuating lever is inserted the motor circuit is interrupted For emergency manual actuation moving the detachable lever into ON position first a short pressure must be exercised in OFF position to overcome the dead center in the drive linkage and vice versa Switching ON manually Actuate interrogating lever to the right to release the appropriate insertion port a Insert actuating lever and move it clockwise m Remove lever Switching OFF manually Push interrogating lever to the right to release the appropriate insertion port a Insert actuating lever and move it counter clockwise a Remove lever AGS 531 521 01 GMA AGS 531 521 01 6 Operation conta Fig 24 Switch disconnector Switching ON OFF Swit
36. n fatal injury Warning This danger symbol warns about the risk of injury Please comply with allthe provisions identified by this symbol in order to avoid death or serious injury Important This instruction symbol is used for information which is important to avoid material damage Any questions or suggestions Do you have any questions or suggestions regarding this manual or do you require further information We always strive to provide you with the best possible information for optimum safe use of our products Thus do not hesitate to contact us if you have any recommendations amendments or proposals for improvement i 5 Schneider GMA Schneider 1 Safety provisions The work described in this manual may only be performed by specialist electricians who have proved their experience with the GMA series training certificate and the applicable safety provisions Applicable standards and regulations Common regulations for high voltage switchgear and control gear IEC 62271 1 a Use and handling of sulphur hexafluoride SF in high voltage switchgear IEC 62271 303 The locally applicable accident prevention operating and work instructions must be complied with a Installation IEC 61936 1 HD 637 S1 Operation of electrical equipment EN 50110 1 The national standards applicable in the country where the equipment is to be installed must be complied with Before performing work on th
37. o the left approx 20 until opening is complete Fig 26 Switch disconnector Switching ON OFF and charging AGS 531 521 01 GMA AGS 531 521 01 6 Operation conta Switching operations on the earthing switch Initial situation Switch disconnector OFF Earthing switch OFF Switching ON manually Actuate interrogating lever to the left to release the appropriate insertion port Insert actuating lever red and turn it clockwise approx 95 Remove actuating lever Switching OFF manually Actuate interrogating lever to the left to release the appropriate insertion port a Insert actuating lever and move it counter clockwise Remove actuating lever Fig 27 Earthing switch Switching ON OFF i 29 Schneider GMA 6 Operation contd 6 7 Standard switching operations in circuit breaker panels Important i For all switching operations comply with the interlocking conditions Chapter and the operating specifications in Chapter 6 3 6 7 1 Operating the outgoing feeder cable Initial situation Circuit breaker OFF Disconnector OFF Earthing switch OFF Fig 28 Switch outgoing feeder cable ON 1 Switch disconnector ON A 2 Switch circuit breaker ON B ul Fig 29 Switch outgoing feeder cable OFF 1 Switch circuit breaker OFF C 2 Switch disconnector OFF A 30 Schneider AGS 531 521 01 Electric GMA 6 Operation conta 6 7 2 Earthing o
38. or right hand UG eo V V V A zi meer EE L Fig 7 3 single panels showing all function and control elements regarding the gas compartment as an example These have been shown in graded grey shades to reflect the various insulating gas compartments 1 Switchgear panel 2 Busbar coupling tank 3 Gas connector socket 4 Check valve 5 Pressure gauge 6 Gas proof electrical bushing 7 Vave open code 2 8 Vave closed code 0 9 Pressure relief port 10 Busbar end tank 14 Schneider AGS 531 521 01 Electric GMA 4 Insulating gas monitoring contd 4 2 Technical data Type of insulating gas Sulphur hexafluoride SF according to IEC 60376 The tanks of the switchgear have been designed as Sealed Pressure System as defined in IEC 62271 200 Thanks to the design of the Sealed Pressure System the insulating gas contents do not require any maintenance During the expected service life no gas handling will be required under normal operating conditions acc to IEC 62271 1 Important The switchgear specific gas compartment diagram must be complied with Rated pressure and pick up values Rated voltage U 12 24 kV Rated pressure p MPa 0 03 Prealarm in case of drop in pressure p_ MPa 0 02 Main alarm in case of drop in pressure MPa 0 01 The pressure data refers to 20 C and an atmospheric pressure of 101 3 kPa abs 4 3 Pressure gauges The pressure gauge indication is ambient te
39. r drive on disconnector optional During actuation of the interrogation slide or while the actuating lever is inserted the motor circuit is interrupted For emergency manual actuation moving the detachable lever into ON position first a short pressure must be exercised in OFF position to overcome the dead center in the drive linkage and vice versa Initial situation Circuit breaker OFF Disconnector OFF a Earthing switch OFF Switching ON manually Actuate interrogating lever to the right to release the appropriate insertion port m Insert actuating lever and move it clockwise Remove crank Switching OFF manually Push interrogating lever to the right to release the appropriate insertion port a Insert actuating lever and move it counter clockwise m Remove crank Fig 22 Disconnector Switching ON OFF Switching operations on the earthing switch Important Motor drive on earthing switch optional During actuation of the interrogation slide or while the actuating lever is inserted the motor circuit is interrupted For emergency manual actuation moving the detachable lever into ON position first a short pressure must be exercised in OFF position to overcome the dead center in the drive linkage and vice versa Initial situation Circuit breaker OFF Disconnector OFF Earthing switch OFF Switching ON manually Actuate interrogating lever to the left to release the appropriate insertio
40. s 24 6 5 Operation Switch disconnector panel ccccceeeeeeeeeeeeeeeeeees 26 6 6 Operation switch disconnector panel with fuses 28 6 7 Standard switching operations in circuit breaker panels 30 6 7 1 Operating the outgoing feeder Cable ccccccseeeeeeeeeeeeeeeeees 30 6 7 2 Earthing outgoing feeder Cable ccccccceeeeeeeseeeeeeeeaeeeeeeeaees 31 6 7 3 Connecting busbar sections with bus section coupler 32 6 8 Earthing the DUSDAM en 32 6 8 1 Earthing the busbar with earthing device on the cable connection via the circuit breaker of a feeder panel 32 6 8 2 Earthing the busbar by means of the bus section coupler 33 AGS 531 521 01 Schneider 3 G eElectric GMA Schneider Contents ccontd 7 Replacement Of fuse links uu uc men ae 35 7 1 Selection data for H V H R C fuse links uenneeeenneennn 35 7 2 Approved suppliers for H V H R C fuse links 00 35 7 3 Dimensions for fuse links u00s22200snssneenennennennnnnnnnennnnennenn 36 7 4 Use of non specified fuse links 0 22200022200nennennennennennennnnn 36 7 5 Replacement Of fuses usssuuesssneeensnnenennnnnennennnnnnnnnnne nennen 36 8 Disconnecting the voltage transformer uzuurusnnBnnnnnn nn 40 8 1 Disconnecting device for the voltage transformer in the outgoing
41. t fitting options Motor m for charging the energy storing device closing spring actuation of the disconnector and earthing switc Release Closing release 1 ea Opening release max 2 ea Secondary release transformer operated release max 1 ea u Undervoltage release 1 ea The maximum number of components fitted shunt opening secondary and undervoltage release is 2 ea per panel Blocking coil Blocking coils prevent the circuit breaker from being closed and opened via the pushbuttons ON or OFF as well as actuation of the interrogating slides of the disconnectors and earthing switches In deenergized condition blocking coils are always in blocked condition Auxiliary switch Auxiliary switches are always actuated directly by the switch shaft via an intermediate linkage Their position always corresponds to that of the main contacts The switching functions have been set in the factory according to the circuit diagram Rated supply v DC AC voltage 48 60 110 220 120 230 Switching capacity A lalate tat es 10 Time factor T L R ms lt 20 Rated short time current Rated continuous current 100 A for a duration of 30 ms A 10 AGS 531 521 01 GMA 2 Technical data contd Overview of rated supply voltages Direct voltage DC 24 48 60 110 125 220 Alternating voltage AC 120 230 Power consumption solenoids and motor Power consumption DC AC 50 60
42. te the purchase contract and the switchgear specific circuit diagram as regards the design of the interlocking systematics 6 2 1 Internal mechanical interlocks of the panel m With the circuit breaker closed the interrogation slide is locked for the disconnector and the earthing switch The interrogation slide always releases one insertion port disconnector or earthing switch or both of them are locked The lever for the disconnector can only be removed in its end position u When the lever for actuation of the disconnector or earthing switch has not been removed or if the interrogation slide is open the following components are locked o ON pushbutton of the circuit breaker cannot be pressed o ON pulse is interrupted 6 2 2 Mechanical lock out with cylinder lock optional see also Fig 16 to Fig 18 In the case of branch circuit panels the circuit breaker button OFF can be actuated If the lever for actuation of the disconnector or earthing switch has not been removed the key of the mechanical lock out can neither be turned nor removed Actuations on front Turn key Key removable not removable 6 2 3 Mechanical interlock with padlocks optional control panel actuation not possible actuation possible clockwise counter clockwise On request circuit breakers disconnectors and earthing switches can be equipped with padlocks to prevent mechanical actuation Fig 17 1 Int
43. utgoing feeder cable Initial situation Circuit breaker OFF Disconnector OFF Earthing switch OFF Fig 31 Earth outgoing feeder cable Switch earthing switch ON D Fig 32 De earth Switch earthing switch OFF D Fig 33 AGS 531 521 01 Schneider 31 F Electric GMA 32 Schneider 6 Operation conta 6 7 3 Connecting busbar sections with bus section coupler j Be nn Initial situation Circuit breaker OFF Disconnector OFF Earthing switch OFF AI eh Fig 34 Initial situation Connecting busbar sections Switch both disconnectors A and B ON Switch circuit breaker C ON Fig 35 Connect disconnect busbar sections Disconnect busbar sections a Switch circuit breaker D OFF Switch both disconnectors A and B OFF 6 8 Earthing the busbar Warning The disconnectors in the busbar section to be earthed must be in position OFF to avoid fauly switching Important For all switching operations comply with the interlocking conditions Chapter and the operating specifications in Chapter 6 8 1 Earthing the busbar with earthing device on the cable connection via the circuit breaker of a feeder panel The earthing device can be connected to the cable connectors in the cable connection area earthing adapter required The earthing device and the earthing adapter are not included in the switchgear s scope of supplies Important
44. utton of circuit breaker 2 Blocking coil on interrogation slide i 21 Schneider GMA 6 Operation contd 6 2 5 Table of mechanical interlocks Switchgear panel with circuit breaker disconnector and earthing switch Switching Interlock state versus device SCCM Circuit component breaker Disconnector Earthing switch Cable compartment cover unlocked if earthing switch ON locked if disconnector ON locked if earthing switch OFF locked if earthing inlocked itdisconnector OFF Ra if earthing switch switch ON unlocked if disconnector OFF N locked Circuit breaker En pearing unlocked if disconnector ON locked if earthing switch OFF switch OFF Earthing switch a locked Cable compartment cover attached unlocked if disconnector OFF Switchgear panel with switch disconnector earthing switch and disconnector with fuse earthing switch Disconnector Switching Interlock state versus device State component Switch disconnector Earthing switch Cable compartment or fuse cover Switch onen comer feromosmen locked if earthing switch OFF disconnector locked if earthing switch OFF ON flocked unlocked nase OFF unlocked C C ke alu ached unlocked if switch unlocked if switch E disconnector OFF disconnector OFF 6 3 Operating specifications The switchgear unit may only be operated by specialist electricians who have proven experience in conjunction wit
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