2C73 User's Guide
Contents
1. enoit Equipment Operating Conditions The equipment should be operated within the specified electrical and environmental limits Protective relays although generally of robust construction require careful treatment prior to installation and a wise selection of site By observing a few simple rules the possibility of premature failure is eliminated and a high degree of performance can be expected Care must be taken when unpacking and installing the relays so that none of the parts are damaged or their settings altered and must al all times be handled by skilled persons only Relays should be examined for any wedges clamps or rubber bands necessary to secure moving parts to prevent damage during transit and these should be removed after installation and before commissioning The relay should be mounted on the circuit breaker or panel to allow the operator the best access to the relay functions Relay Dimensions amp Other Mounting Accessories Refer drawing in Technical Bulletin Relevant Auto Cad files amp details on other accessories such as 19 inch sub rack frames semi projection mount kits amp stud terminal kits may be down loaded from htto www rmspl com au mseries htm AT RNEER ON ww K CERTIFIED QUALITY Visit www rmspl com au for the latest product information MBNASENENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 4 Iss E 25 082. 4 Integrity of earth connection where applicable Screw lug 4mm O D 8 0mm MAX AT RNEER ON ww K CERTIFIED QUALITY Visit www rmspl com au for the latest product information MBNASENENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 4 Iss E 25 08 08 30300 CTION amp CONTRO enoit Current Transformer Circuits Do not open the secondary circuit of a live CT since the high voltage produced may be lethal to personnel and could damage insulation External Resistors Where external resistors are fitted to relays these may present a risk of electric shock or burns if touched Insulation amp Dielectric Strength Testing Insulation testing may leave capacitors charged up to a hazardous voltage At the end of each part of the test the voltage should be gradually reduced to zero to discharge capacitors before the test leads are disconnected Insertion of Modules These must not be inserted into or withdrawn from equipment whilst it is energised since this may result in damage Electrical Adjustments Pieces of equipment which require direct physical adjustments to their operating mechanism to change current or voltage settings should have the electrical power removed before making the change to avoid any risk of electric shock Mechanical Adjustments The electrical power to the relay contact
3. 08 30300 enoreclio amp C ONTRo Equipment Connections Personnel undertaking installation commissioning or servicing work on this equipment should be aware of the correct working procedures to ensure safety The product documentation should be consulted before installing commissioning or servicing the equipment Terminals exposed during installation commissioning and maintenance may present hazardous voltage unless the equipment is electrically isolated lf there is unlocked access to the rear of the equipment care should be taken by all personnel to avoid electric shock or energy hazards Voltage and current connections should be made using insulated crimp terminations to ensure that terminal block insulation requirements are maintained for safety To ensure that wires are correctly terminated the correct crimp terminal and tool for the wire size should be used Before energising the equipment it must be earthed using the protective earth terminal or the appropriate termination of the supply plug in the case of plug connected equipment Omitting or disconnecting the equipment earth may cause a safety hazard The recommended minimum earth wire size is 2 5mm unless otherwise stated in the technical data section of the product documentation Before energising the equipment the following should be checked 1 Voltage rating and polarity 2 CT circuit rating and integrity of connections 3 Protective fuse rating
4. secondary injection tests DANGER DO NOT OPEN CIRCUIT THE SECONDAY CIRCUIT OF A CURRENT TRANSFORMER SINCE THE HIGH VOLTAGE PRODUCED MAY BE LETHAL AND COULD DAMAGE INSULATION lt is assumed that the initial preliminary checks have been carried out Relay CT shorting switches With the relay removed from its case check electrically that the CT shorting switch is closed Primary injection testings lt is essential that primary injection testing is carried out to prove the correct polarity of current transformers Before commencing any primary injection testing it is essential to ensure that the circuit is dead isolated from the remainder of the system and that only those earth connections associated with the primary test equipment are in position Decommissioning amp Disposal Decommissioning The auxiliary supply circuit in the relay may include capacitors across the supply or to earth To avoid electric shock or energy hazards after completely isolating the supplies to the relay both poles of any dc supply the capacitors should be safely discharged via the external terminals prior to decommissioning Disposal lt is recommended that incineration and disposal to water courses is avoided The product should be disposed of in a safe manner AT RNEER ON ww K Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice
5. 319 572 9 1001 5188 650 10 990 5056 729 Negative phase sequence chart 110V AC PHASE REVERSAL PROTECTION The 2P49 relay can be used for transportable cranes refrigerated transporters etc which on being connected from one supply to another require phase reversal protection The advantage of the 2P49 for this application is the added protection of phase failure and undervoltage AT ent Oy ag K CERTIFIED QUALITY MANAGEMENT SYSTEM a 0 9 0 0 1 Application VOLTAGE SELECTION SCHEMES The 2P49 relay can be applied in automatic voltage selection schemes to change over from a primary 3 phase supply to a secondary 3 phase supply if any phase of the primary supplies has faulted A number of 2P49 relays may be cascaded to allow selection between 2 3 or 4 independent 3 phase supplies For this application 4 C O heavy duty contacts are required amp the 2s time delay is recommended A single phase representation for automatic selection between multiple 3 phase supplies is depicted below VT gt 249 Supply 1 in Ma 1 Selected an Supply output nie Supply 2 in itp a rp a Supply 3 in Supply 4 in Ze or add further 2P 49 relays O for additional supply selection 8 All circuits shown de energised MOTOR PROTECTION The 2P49 phase failure relay has the sensitivity to detect the voltage unbalance caused by a motor single phasing
6. CERTIFIED QUALITY vist WWW rmspl COM AU forthe latest product information Mee daa pes Due to RMS continuous product improvement policy this information is subject to change without notice 2P49_Guide Iss C 08 08 06 eporeclio amp C ONTRO Features E Detects phase angle imbalance E Detects negative phase sequence mE Detects supply undervoltage m Unaffected by frequency variations of 5Hz m Adjustable 5 15 out of balance setting E Range of detection voltages amp frequencies available E No auxiliary voltage required E Fail safe operation Contacts normally picked up E Filter rejects harmonics amp control tones E Size 2M28 draw out case E Optional heavy duty contacts E Optional mechanical flag indication E Suitable for 3 phase voltage selection schemes E Optional time delay on drop off AT ent Oy ag K Technical Bulletin 2 P49 Three Phase Voltage Monitoring Relay Phase Failure LE SSeS 0 li Made in Austra HZ 12 Imbalance NOISE IMMU N EC 255 5 5 YXA TYPE S N VX C N AS Sh 2P49 depicted in a 2M28 case Description Made in Australia The 2P49 relay is a 3 phase voltage monitoring relay suitable for the detection of excessive nega
7. Front view ms Side view Terminal layout Panel cut out AT gt lt 3 zZ a vist WWW mspl com au for the latest product information IS 09010 1 Due to RMS continuous product improvement policy this information is subject to change without notice 2P49 Iss J 15 05 09 3 4 Ordering Information Generate the required ordering code as follows e g 2P49 ABAB Case Earth 2P49 1 2 E T a SENSING SUPPLY 3 Phase 3 or 4 wire 3 wire connection eo A 110V 50Hz G 380V 50Hz 5 6 B 415V 50Hz E F C 440V 50Hz eo T D 110V 60Hz a K E 415V 60Hz E T F 440V 60Hz D O l 13 14 2 TIME DELAY 2s approx time delay on drop off 15 he A Required D Recommended for voltage selection schemes o eo B Not required 1 20 e g EJ output contacts PNE PS A Idec RH type output relay 2 C O contacts 23 94 B Heavy duty 6R output relay 4 C O contacts D o Required for voltage selection schemes P 0 C 6R output relay with magnetic blowouts 4 C O contacts 27 28 rT 4 FLAG Only available with 6R output relay A Required hand reset B Not required 2M28 Case terminations REAR VIEW C Required self reset Poa Ree eee a ee D ee a ee ee g Phase R input ane eae C Phase R preferred Phase W input 9 C Phase W preferred Phase B input oe O C Phase B preferred B W 3 PHASE ROTATION Output 1 oe O C Phase R standby Metering Output 2 acs aaa O Equipment
8. In most instances even a motor with no load and no other loads connected to the open phase will be detected when single phasing The 2P49 relay is ideal for detecting phase failure and unbalance of HT lines and for this purpose 110V relays are also available As the 2P49 detects the presence of negative sequence voltage a relay connected on the load side of a three phase transformer will detect a blown fuse or high impedance in one phase of the supply to the transformer regardless of the transformer winding connections Pump motors on the end of a HT line with fuse protection and therefore high probability of single line outages are an obvious application for the 2P49 relay 3 PHASE UNDERVOLTAGE It is a useful undervoltage relay in that phase angles are also monitored As an example three single phase undervoltage relays may not detect an open phase which is connected to a healthy phase through a low impedance load The 2P49 relay however will detect this condition due to the change in phase angles In using the 2P49 relay as an undervoltage relay it must be remembered that only the B W voltage is monitored directly The other two to voltages are monitored for correct phase angle and voltage balance with respect to the B W voltage The difference in percentage undervoltage expressed as phase to phase and phase to neutral must also be appreciated As a guide when two to voltages are equally reduced as shown the relationship is as fol
9. Phase W standby 6R relay output or option Output3 ar cae G p TE C Phase B standby gt Output4 Bao Aim gt Potential Selector Circuit Example 2P 49 wiring diagram AT ent Oy ag K CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT SYSTEM IS 09010 1 Due to RMS continuous product improvement policy this information is subject to change without notice 2P49 Iss J 15 05 09 4 4 opoTectO amp CONTRO Part Installation Handling of Electronic Equipment A person s normal movements can easily generate electrostatic potentials of several thousand volts Discharge of these voltages into semiconductor devices when handling electronic circuits can cause serious damage which often may not be immediately apparent but the reliability of the circuit will have been reduced The electronic circuits of Relay Monitoring Systems Pty Ltd products are immune to the relevant levels of electrostatic discharge when housed in the case Do not expose them to the risk of damage by withdrawing modules unnecessarily Each module incorporates the highest practicable protection for its semiconductor devices However if it becomes necessary to withdraw a module the following precautions should be taken to preserve the high reliability and long life for which the equipment has been designed and manufactured 1 Before removing a module ensure
10. User_Guide 4 lss E 25 08 08 CERTIFIED QUALITY MANAGEMENT SYSTEM 30300 enOvEcLic amp CONTRO Part Maintenance Mechanical Inspection Relay Assembly Inspect the relay for obvious signs of damage or ingress of moisture or other contamination Relay Module Isolate the relay remove the front cover amp carefully withdraw the relay module from the case Care must be taken to avoid subjecting the relay element to static discharge which may damage or degrade sensitive electronic components Inspect the relay module for signs of any overheating or burn marks which may have been caused by overvoltage surge or transient conditions on the power supply or digital status inputs Inspect the VT amp CT stages for degradation of insulation on the terminal wiring amp transformer windings Remove cover by unscrewing black thumb screws amp withdraw the relay module from the case AT RNEER ON we K CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 10 07 08 1809001t og OTECTION amp CONT Relay Case Inspect the outer terminals checking insulation integrity amp tightness Inspect inside the case and use a blower to remove dust Inspect the inner terminals for worn distorted or tarnished contacts and if necessary cl
11. ean the contacts using a brush dipped in a suitable substance FJ j f ea LE a wa b bil l E x E ax io e ic e e Aa igh F z Y EEE i He Rae He ae TG 3 Case outer terminals Case inner terminals Module plug in terminals Test Intervals The maintenance tests required will largely depend upon experience and site conditions but as a general rule it is recommended that the following inspection and tests are performed every twelve months Mechanical Inspection Check of Connections Insulation Resistance Test 4 Fault Setting Tests by Secondary Injection Tests using Load Current Check the continuity of the neutral CT loop with a bell test set or an ohmmeter AT RNEER ON ww K NCS ly CERTIFIED QUALITY visit WWW rmspl COM AU for the latest product information Gables A Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 10 07 08 opOTECTO amp CONTRO ims Defect Report Form this sheet and use it to report any defect which may occur Contact Name Please cop Customers Name amp Address Telephone No Date when installed Supplied by Circuit When Defect Found Commissioning Other Please State Serial Number Maintenance Systems Fault Product Part No Copy any message displayed by the relay Describe Defect Describe any other action taken Signature Please P
12. ffective amp flexible mechanical solution for the MATRIX range of RMS protection relays The MATRIX range provides a compact draw out case solution with M4 screw terminals e 2M28 Size 2 with 28 terminals e 4M28 Size 4 with 28 terminals e 4M56 Size 4 with 56 terminals Complete details amp attributes for the M MATRIX cases amp accessories may be found at htto www rmspl com au mseries htm The 2P49 is configured in a 2M28 case amp the following photographs depict the general mechanical configuration It should be noted that re usable screw rivets are used to bind the draw out relay module A 1 16 hex key is required for disassembly AT aN ON OK CERTIFIED QUALITY NGS ly vist WWW rmspl COM aU forthe latest product information MANAS EMENT AYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice 2P49_Guide Iss C 08 08 06 1509001 Part Technical Bulletin The detailed technical attributes functional description amp performance specifications for the 2P49 are described in the attached Technical Bulletin For the most up to date version go to www rmspl com au handbook 2P49 htm For any specific attributes of a particular version refer to the Test Manual for that type K number The order of precedence for technical information is as follows e Test Manual e Technical Bulletin e User Guide AT eNA OY ay K NGS ly
13. he customer name order sci ee number relay part number amp description WERT POWER ees the relay job number amp packing date ae y Size 2 inner packing carton depicted QNA Tloy we K NCS ly CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 4 Iss E 25 08 08 30800t Unpacking Continued Inner packing carton with lid open showing protective foam insert CD depicted supplied with digital relay models or upon request at time of order Inner packing carton with protective foam insert removed showing relay location Where mechanical flags are fitted the yellow transit wedge must be removed before operation using a gentle twisting action The wedge should be stored with the original packaging material QNA Tloy we K NCS ly SERRE a A Visit www rmspl com au for the latest product information MANAGEMENT SYSTEM Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 4 Iss E 25 08 08 5 0 10 Im enorection amp CONTRO rms Relay Module Side Label Depicting Product Details Relay Module Side Label Depicting Wiring Diagram 6R MATRIX relays only AT RNEER ON ww K CERTIFIED QUALITY MANAGEMENT SYSTEM T0100 Visit www rms
14. iliary voltage range I O configuration case style relay functionality etc The product ordering code described in the Technical Bulletin is used to generate a unique version of the relay specification amp is called a type number The type number takes the form 2P49Kxx where the Kxx is the K or version number Refer to www rmspl com au handbook PARTA3 pdf for a complete description of the RMS K number system Each 2P49 version has a specific Test Manual which provides details on the unique attributes of the relay Each Test Manual includes the following information e Test Certificate e Specific technical variations from the standard model if applicable e Test amp calibration record e Wiring diagram A Test Manual is provided with each relay shipped If you require a copy of the Test Manual for an RMS product the following options are available e Check the RMS web site at Wwww rmspl com au Ssearch aspo e RMS CD catalogue select List all Product Test Manuals under Technical Library e Contact RMS or a representative amp request a hard copy or PDF by email AT aN ON wc K CERTIFIED QUALITY vist WWW rmspl COM AU forthe latest product information Mee daa pes Due to RMS continuous product improvement policy this information is subject to change without notice 2P49_Guide Iss C 08 08 06 pnr ECESE CONTRO rms Part Mechanical Configuration Great care has been taken to design a rugged cost e
15. lows 95 to 90 to N 90 to 80 to N 85 to 69 to N Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice 2P49 Iss J 15 05 09 2 4 Technical Data IMBALANCE SETTING OPTIONAL HEAVY DUTY OUTPUT CONTACTS Adjustable 5 15 expressed as phase to phase voltage difference 4 C O for voltage selection schemes as a of nominal voltage when two phase to phase voltages are reduced equally with the third at nominal voltage on RELAY CONTACT RATINGS Make amp Carry Continuously The imbalance dial is calibrated for drop off at each end of the 3 000 VA AC resistive with maximums of 660V amp 12A scale the user should set the control as fine as possible 5 end 3 000 W DC resistive with maximums of 660V amp 12A to the point where the voltage dips on the system caused by M l ake amp Carry for 3 Seconds varying Oats GOTON GAUSEN TEAYO GIOP GUN 7 500 VA AC resistive with maximums of 660V amp 30A UNDERVOLTAGE SETTING 7 500 W DC resistive with maximums of 660V amp 30A 80 fixed expressed as phase to phase voltage of nominal i l AC Break Capacity NOMAD Se AIST Sa NO AE AVADE OEE 3 000 VA AC resistive with maximums of 660V amp 12A ACCURACY DC Break Capacity Amps Front dial setting 3 TIME DELAY Voltage aay asv 125V 250V Refer to the Order Code section to select instantaneous
16. oRovection amp CONTRO 2P49 User Guide Phase Failure Relay relay monitoring systems pty Itd Advanced Protection Devices User Guide Test Manual 2P49 User Guide About This Manual This User Guide covers all 2P49 relays manufactured from August 2006 Earlier relays do not necessarily incorporate all the features described Our policy of continuous may means that extra features amp functionality may have been added The 2P49 User Guide is designed as a generic document to describe the common operating parameters for all relays built on this platform Some relay applications are described but for specific model information the individual K number Product Test manuals should be consulted The copyright and other intellectual property rights in this document and in any model or article produced from it and including any Registered or unregistered design rights are the property of Relay Monitoring Systems Pty Ltd No part of this document shall be reproduced or modified or stored in another form in any data retrieval system without the permission of Relay Monitoring Systems Pty Ltd nor shall any model or article be reproduced from this document without consent from Relay Monitoring Systems Pty Ltd While the information and guidance given in this document is believed to be correct no liability shall be accepted for any loss or damage caused by any error or omission whether such error or omission is the resul
17. operation T T 05 025 or 2s approx time delay for operation on drop off Resistive rating AARIA 12 1 2 C O standard Idec RH type L R 40ms break b 30 15 l 3 5 Maximum Contact Capacity Amps 1K operations DC __ AC N3 Rating bli ae ee DC AC Resistive 10 24 12 10 7 66 Inductive R7ms_ 7 5 18 09 75 5 44 CASE Make amp Carry for 200ms EMES Ora GUNCARG 30A at 250V DC resistive INSULATION WITHSTAND In accordance with IEC 255 5 2KV RMS between input and frame output and frame and output and input 1 2 50 5KV impulse between each terminal and earth between circuits not normally connected together and between terminals of the same circuit NOISE IMMUNITY Withstands the high frequency interference test detailed in IEC 255 22 1 AMBIENT OPERATING TEMPERATURE RANGE 5 to 55 degrees Celsius a Without magnetic blowouts b With magnetic blowouts Maximum Break Capacity 0 34A at250V DC inductive 40ms 51 27 217 25 amp Min 48 OD M ca EE e OI 4 1 a O 2 OULO Size 2M28 5 SHUG ONC SO Indicative draw out case ee Drawing units mm es SiO 159 168 OUTO O C Suits flush panel mounting amp SS l 4U high 19 inch rack frame oe WAIL 27 OUCH 28 iL a in SS oe 7 e15 ee 3 2 holes of 3 7
18. pl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice User _Guide 4 Iss E 25 08 08 Accessories Supplied With Each Relay Self threading M4 mounting screws M4 terminal screws with captured lock washers Storage amp Handling lf damage has been sustained a claim should immediately be made against the carrier also inform Relay Monitoring Systems Pty Ltd and the nearest RMS agent When not required for immediate use the relay should be returned to its original carton and stored in a clean dry place Relays which have been removed from their cases should not be left in situations where they are exposed to dust or damp This particularly applies to installations which are being carried out at the same time as constructional work lf relays are not installed immediately upon receipt they should be stored in a place free from dust and moisture in their original cartons Dust which collects on a carton may on subsequent unpacking find its ay into the relay in damp conditions the carton and packing may become impregnated with moisture and the de humidifying agent will lose is efficiency QNA Tloy we K CERTIFIED QUALITY Visit www rmspl com au for the latest product information eade rE Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 4 Iss E 25 08 08 CTION amp CONTRO
19. rint Name Date Received Contact Name Date Acknowledged Date of Reply Date Cleared AT RNEER ON ww K Visit www rmspl com au for the latest product information CERTIFIED QUALITY PEERS eee Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 Iss D 10 07 08 30300 Australian Content Unless otherwise stated the product s quoted are manufactured by RMS at our production facility in Melbourne Australia Approximately 60 of our sales volume is derived from equipment manufactured in house with a local content close to 90 Imported components such as semi conductors are sourced from local suppliers amp preference is given for reasonable stock holding to support our build requirements Quality Assurance RMS holds NCSI NATA Certification Services International registration number 6869 for the certification of a quality assurance system to AS NZS 1S09001 2000 Quality plans for all products involve 100 inspection and testing carried out before despatch Further details on specific test plans quality policy amp procedures may be found in section A4 of the RMS product catalogue Product Packaging Protection relays are supplied in secure individual packing cardboard boxes with moulded styrene inserts suitable for recycling Each product amp packing box is labeled with the product part number customer name amp order details De
20. s should be removed before checking any mechanical settings to avoid any risk of electric shock Draw Out Case Relays Removal of the cover on equipment incorporating electromechanical operating elements may expose hazardous live parts such as relay contacts Insertion amp Withdrawal of Heavy Current Test Plugs When using a heavy current test plug CT shorting links must be in place before insertion or removal to avoid potentially lethal voltages AT RNEER ON ww K Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 4 lss E 25 08 08 CERTIFIED QUALITY MANAGEMENT SYSTEM 30300 CTION amp CONTRO enoit Commissioning Preliminaries Carefully examine the module and case to ser that no damage has occurred during transit Check that the relay serial number on the module case and cover are identical and that the model number and rating information are correct Carefully remove any elastic bands packing fitting for transportation purposes Check that the external wiring is correct to the relevant relay diagram or scheme diagram The relay diagram number appears inside the case Particular attention should be paid to the correct wiring and value of any external resistors indicated on the wiring diagram relay rating information Note that shorting switches shown on the relay diagram are fi
21. sign References The products amp components produced by RMS are based on many years of field experience since Relays Pty Ltd was formed in 1955 A large population of equipment is in service throughout Australia New Zealand South Africa amp South East Asia attesting to this fact Specific product amp customer reference sites may be provided on application Product Warranty All utility grade protection amp auxiliary relay products unless otherwise stated are warranted for a period of 24 months from shipment for materials amp labour on a return to factory basis Repair of products damaged through poor application or circumstances outside the product ratings will be carried out at the customer s expense Standard Conditions of Sale Unless otherwise agreed RMS Standard Terms amp Conditions QF 907 shall apply to all sales These are available on request or from our web site Relay Monitoring Systems Pty Ltd 6 Anzed Court Mulgrave Victoria 3170 AUSTRALIA Tel 61 3 9561 0266 Fax 61 3 9561 0277 Email rms rmspl com au Web www rmspl com au 2009 Relay Monitoring Systems Pty Ltd Due to RMS continuous product improvement policy this information is subject to change without notice
22. t of negligence or any other cause Any and all such liability is disclaimed Contact Us Relay Monitoring Systems Pty Ltd 2001 2006 6 Anzed Court Mulgrave 3170 AUSTRALIA Phone 61 3 9561 0266 Fax 61 39561 0277 Email rms rmspl com au Web www rmspl com au To download a PDF version of this guide http www rmspl com au userquide 2P49 user guide pdf To download the model specific Test Manual htto www rmspl com au search asp How this guide is organised This guide is divided into five parts Part 1 Overview About this Manual Contents Test Manual Part 2 Mechanical Configuration Part 3 Technical Bulletin Part 4 Installation Handling of Electronic Equipment Safety Unpacking Accessories Storage amp Handling Recommended Mounting Position Relay Dimensions amp Other Mounting Accessories Equipment Connections Part 5 Maintenance Mechanical Inspection Test Intervals Defect Report Form AT eNA OY ay K CERTIFIED QUALITY Visit www rmspl com au for the latest product information Mee daa falas Due to RMS continuous product improvement policy this information is subject to change without notice 2P49_Guide Iss C 08 08 06 pnoreclio amp CONTRO Part Test Manual This User Guide covers all 2P49 relay versions amp describes the generic features amp attributes common across all versions Different relay versions are required to cater for varying customer requirements such as aux
23. that you are at the same electrostatic potential as the equipment by touching the case 2 Handle the module by its front plate frame or edges of the printed circuit board 3 Avoid touching the electronic components printed circuit track or connectors 4 Do not pass the module to any person without first ensuring that you are both at the same electrostatic potential Shaking hands achieves equipotential 5 Place the module on an antistatic surface or on a conducting surface which is at the same potential as yourself 6 Store or transport the module in a conductive bag lf you are making measurements on the internal electronic circuitry of an equipment in service it is preferable that you are earthed to the case with a conductive wrist strap Wrist straps should have a resistance to ground between 500k 10M ohms If a wrist strap is not available you should maintain regular contact with the case to prevent the build up of static Instrumentation which may be used for making measurements should be earthed to the case whenever possible NA7 o amp vg CERTIFIED QUALITY vist WWW rmspl COM AU forthe latest product information pee paola aoe Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 5 IssE 25 08 08 Safety Section This Safety Section should be read before commencing any work on the equipment The information in the Safety Section of the prod
24. tive sequence voltage resulting from phase failure phase unbalance and reversed phase sequence The 2P49 output relay provides fail safe operation in that its output contacts are normally energised amp drop out when Phase angle unbalance is greater than the front panel pre set 3 phase voltage falls below the factory pre set of 80 Reverse phase sequence CERTIFIED QUALITY Visit www rmspl com au for the latest product information MANAGEMENT SYSTEM 1809001 Due to RMS continuous product improvement policy this information is subject to change without notice 2P49 Iss J 15 05 09 1 4 PRINCIPLE OF OPERATION The unit consists of a simple RC circuit across the R Y phase such that point x will only be at the same potential as point p for a balanced supply of correct phase sequence The solid state relay circuit is designed to release the relay at either a set out of balance voltage X P voltage or a set undervoltage of the B W phase relay supply Special filtering circuitry is used to prevent high frequency or ripple control signals from affecting the operation of the relay B P Y VECTOR DIAGRAM Unbalanced Supply VECTOR DIAGRAM Balanced Supply Relay Supply 00000 EQUIVALENT CIRCUIT NEGATIVE PHASE SEQUENCE The relay will drop out when the negative phase sequence value corresponding to the relay setting shown below for the 110V AC is reached 6 1034 5580 421 8 1012 5
25. tted internally across the relevant case terminals and close when the module is withdrawn It is essential that such switches are fitted across all CT circuits lf a test block system is to be employed the connections should be checked to the scheme diagram particularly that the supply connections are to the live side of the test block Earthing Ensure that the case earthing connection above the rear terminal block is used to connect the relay to a local earth bar Insulation The relay and its associated wiring may be insulation tested between all electrically isolated circuits all circuits and earth An electronic or brushless insulation tester should be used having a dc voltage not exceeding 1000V Accessible terminals of the same circuit should first be strapped together Deliberate circuit earthing links removed for the tests subsequently must be replaced AT RNEER ON ww K Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice User_Guide 4 lss E 25 08 08 CERTIFIED QUALITY MANAGEMENT SYSTEM 30300 Commissioning Tests lf the relay is wired through a test block it is recommended that all secondary injection tests should be carried out using this block Ensure that the main system current transformers are shorted before isolating the relay from the current transformers in preparation for
26. uct documentation is intended to ensure that products are properly installed and handled in order to maintain them in a safe condition It is assumed that everyone who will be associated with the equipment will be familiar with the contents of the Safety Section Explanation of Symbols amp Labels The meaning of symbols and labels which may be used on the equipment or in the product documentation is given below Caution refer to product information Functional earth terminal Note this symbol may also be used for a protective safety earth terminal if that terminal is part of a terminal block or sub assembly eg power supply Caution risk of electric shock A AT ent R ON i K NCS ly Visit www rmspl com au for the latest product information Due to RMS continuous product improvement policy this information is subject to change without notice User _Guide 4 lss E 25 08 08 CERTIFIED QUALITY MANAGEMENT SYSTEM 0 9 0 0 1 1 rms Unpacking Upon receipt inspect the outer shipping carton or pallet for obvious damage Remove the individually packaged relays and inspect the cartons for obvious damage To prevent the possible ingress of dirt the carton should not be opened until the relay is to be used Refer to the following images for unpacking the relay Outer packing carton showing shipping documentation pouch Address label on top of carton Inner packing carton showing front label detailing t
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