MSc Active Harmonic Filter MSc AHF 100 Product
Contents
1. EN60068 2 6 Shock EN50178 EN60068 2 27 Storage and shipping max 15G 1lms in the protected package Remarks Locations with normal levels of contaminants experienced in urban areas with industrial activities scattered over the whole area or with heavy traffic Locations without special precautions to minimize the presence of sand or dust but not situated in proximity to sand or dust sources The MSc AHF 100 Installation must be indoors and it should be taken into account that the protection class is IP 20IP 20IP 20 A WARNING Conductive dust may cause damage to this equipment Ensure that the M Sc AHF 100 is installed in a room where no conductive dust is present M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 7 28 2 1 4 Operational description and functions 2 1 4 1 Overall functional description The MSc AHF 100 is designed to compensate harmonic currents 3rd 50th order drawn from the mains The MSc AHF 100 measures the load harmonic currents with three current sensors CT1 CT3 see block diagram below and injects opposite polarity harmonic currents of the same amplitude into the mains thus minimizing the amount of harmonic currents drawn from the mains Asymetrical load transient currents such as transformer inrush currents may activate LCL CAP overvoltage Overcurrent or DC link overvoltage faults see LED indicators These faults are reset automatically after approx2. 12 seconds A peak output current over 140 A peak is not recommended even though the MSc AHF 100 is capable to give 150 A peak current output If the recommended current limit is exceeded other control functions may not work properly and faulty operation of the MSc AHF 100 may occur ae ee ee LOAD MAI NS E 200A 5A 3VA E P4 K CT1 P2 L L 1 S1 k IS 2 1 200A 5A 3VA s L p1 K Cl2 P2 L M R eN CT3 ponl L3 aac Customer added components fuse protection and main switch ee ae A T ce ce Re S i CT shortcircuit switches CTs ON OFF RESET INPUT FAULT OUTPUT 24V 230Vac 2A CURRENT LIMIT OUTPUT 24V 230Vac 2A The CT inputs fault output and current limit output are galvanically isolated from PE and control electronics The neutral connection X1 9 is nota Note power connection Connect X1 9 to MSc AHF 100 mains starpoint neutral R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 8 28 2 1 4 2 Control functions input I O The MScAHF 100 ON OFF RESET states are controlled by physical ON OFF RESET switch which is connected to the digital input X1 1 2 I O connector See chapter 10 2 5 for further details on the switch Faults can be reset manually by changing the ON OFF RESET digital inout from ON to OFF to ON The reset happens when the input turns from OFF to ON The MSc AHF 100 also does autom
3. EMC filter of the M Sc AHF 100 there is not more radiated emission than specified in the specified EMC EN norm through the mains connection Consequently there is no need for special screening of the mains connection cables 4 1 2 Making the power connections Remember to use contact treatment grease in aluminium power connections e g electrolube CG70 Warning Proceed as follows Before starting the installation check that none of the power cables and control cables to be connected to the MSc AHF 100 is live Power connections The voltage phase rotation at the MSc AHF 100 power supply terminals must be clockwise WARNING Applying voltage to the MSc AHF 100 to check the phase rotation may only be done after ensuring that the mains voltage level is acceptable for the MSc AHF 100 operation and after it has been found that the MSc AHF 100 is not mechanically nor electrically damaged M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 18 28 The connections are shown below You need to lift the cover marked with the red arrow Remove this cover to get access TORX T20 max 2 Nm M8x20 NAR 24 Nm M6x10 10Nm A me OS a 7 Ol ll Ags Control O nye ADAN TORX T20 max 2 Nm Connections and covers 1 Power connections for L1 L2 L3 are 3 aluminium busbars including M 8 nut at the top of the M Sc AHF 100 Only use tools on the bolt heads 2 Protect e
4. M SCAAF 10O erri E TE 9 22 EDINI 0 ke eee eT To ee ee eT ne oe PT eevee en ene eee eee ne re 9 22 2 Control INPCM ACE OUTS and OUTPUTS cscacisecanssicasniauvcserdenciaicecatincsiseanastieudeiats NEETER EEE EE 10 3 MECHANICALINSTAHATION aosocssssaseierisanidake E E I E E 11 3 1 WALL MOUNTING gt escopetecssvascteciaceetnneetnatinaricaiesncoasdtou cetesdaceuloeed anttousctawt evnc saistewsceahecowatorsaid DESPENS EPPO POPEDA dodisinaislwtnewseatenseasteaeek 12 3 2 FENO MOUNTO oaa E E AA A AE 14 3 3 COOU ee E E EE R EEE EE EA A E 15 4 ELECTRICAL INSTALLATION esseeesseecsseccseecsccseccseecsecccssecosecoseecoseccecoeecoeccossecoseccseccosecssessecoseccseccosecoseecsecesseeoo 16 4 1 POWER CONNECTIONS csornai ar e EEEE E EROL EAA RE 17 41 1 Selection ofthe power cable SIZ ia cect cessosutancasiemsiepaceiceadeicaatsdatuceunsseisetiadaucechiss lt tuisesalsadevtanslacssinstscageieaDesaaesaiec 17 4 1 2 Making the power connectionS seeeeeesseeeressssrsssssrrrreseerrerrrssssrertrsstessssttirtttssttrrettessrrreeerrerrssserrrees 17 4 2 CURRENT TRANSFORMERS pce csotesceetee ae vases Sec ccanco rs aeeciecc os ac casos ase puso ae Seo cosa aust E T 19 4 2 1 Selection of current transformers and current transformer CableS cccccceeccccceeccesccccecccceecccueseceees 19 4 2 2 Current transformer installation and CONNECCION cc ccecccccsecccceccceecccceccccceccccascccsucccecccescecaseeeaaess 22 4 2 3 Current transformer cable I
5. diagram in chapter 2 1 4 1 e The three MSc AHF 100 CTs have to be positioned for open loop control i e the CT must monitor the load current e The CTs must be positioned in the correct direction around the power cable the P1 K side should be in the direction of the supply and the P2 L side should be in the direction of the load e Each CT must have its own guard circuit i e one terminal of each CTs secondary terminal S1 k or S2 I should be earthed Once a terminal is chosen e g S1 k terminal the same terminal should be earthed for all the CTs The basic CT connection for a single MSc AHF 100 unit is shown in the block diagram in chapter 2 1 4 1 Overall functional description M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 23 28 The CT connection terminal X1 is located below the front cover Remove the four M 4 Torx T20 screws shown in the left picture below in order to lift the front cover towards you and to remove it The location of the X1 terminal below the front cover and the numbering is shown in the two pictures on the right X1 connection terminal for CTs four M4 Torx T20 screws X1 numbering M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 24 28 In the picture below you can see the closed M Sc AHF 100 TORX T20 max 2 Nm M6x10 10Nm Pe TORX T20 max 2 Nm Connections and covers R M Sc MSc AHF 100 Product ov
6. must be done with four M8 steel 8 8 bolts The dimensions of the M Sc AHF 100 is shown in the picture below apl e Lana aoe oft il aal if DI AAN Main dimensions Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 13 28 190 866 Wall mounting M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 14 28 3 2 Flange mounting The MSC AHF 100 can also be recessed into the cabinet wall or similar surface A special flange mount option is available for this purpose For an example of a flange mounted MSc AHF 100 see pictures below Observe the mounting instructions given in chapter 3 1 Wall mounting Collar outline Dri utline Drive outlines 942 915 901 849 Toga ne as see ne BASA 679 gee 509 339 169 21 9 0 Flange mounting cutout Flange mounting M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 15 28 3 3 Cooling Enough free space shall be left around the MSc AHF 100 to ensure sufficient air circulation cooling as well as maintenance You will find the required dimensions for free space in the picture and table below If an MSc AHF 100 system consists of more than one M Sc AHF 100 unit the units should be installed next to each other If several units are mounted above each other the required free space equals B C Moreover the outlet air used for cooling by the lowe
7. 28 3 MECHANICAL INSTALLATION Please note the weight of the MSc AHF 100 see chapter 2 TECHNICAL INFORMATION Care should be taken to ensure that correct handling facilities are used The MSc AHF 100 may only be lifted with a steel bar as shown in the picture below The steel bar cross section 15 mm must be put through the holes on top of the MScAHF 100 The MSc AHF 100 may NOT be lifted with hooks but only with the steel bar otherwise risk of deformation bending Also NEVER lift the MSc AHF 100 using the front cover only the grey structure and its lifting holes are designed for lifting no hooks lifting holes O15 os SINR RS Pa O t 9 9 a aay ner on M su a holes s i X SOSE 15 A y MSN iir holes 15 RSs RSS BBs AN f Lifting M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 12 28 3 1 Wall mounting The MSc AHF 100 must be mounted in vertical position on the wall or on the back plane of a cabinet The wall on which the MSc AHF 100 unit is mounted must be able to support the weight of the MSc AHF 100 see chapter 2 TECHNICAL INFORM ATION Enough free space must be reserved around the M Sc AHF 100 in order to guarantee proper cooling see chapter 3 3 Also the MSc AHF 100 identification tag should always remain readable to ensure proper identification during the life of the MSc AHF 100 To ensure safe mounting the use of an even mounting plane is required Fastening
8. 4 POWER OF MSc INA M Sc Active Harmonic Filter M Sc AHF 100 Product Overview subject to changes without notice Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 2 28 L TERMSANDABBREVIA TIONS earecc ee cece ca eveecencatce a anus uae iesteeaeseeceseseutidees 3 2 TECHNICAL INFORMATION cccscccscccesscsccccccscsccsccccccscscccscccesscccccsccsesscccecoccccccscscccececccccsccsesscccccscess 4 2 1 TECHNICAL DESCRIPTION gesezecet siecnttrecocose secure te ETE yas noataeincen ouecdatac ENE A E iia ene 4 24 1 INIT TO CGR GUVs cts ccececsetse teen cxcercutsesere eeaictca tei aarti tlrersratenctee eevee mets atsee cat g AEE EEEREN AEEA 4 DVD N 5 2A ANOTE COMMIS cecciaceaseese a testes tab acasasas eauecneddcesshzaseratesiesiateninarsexeics 6 2144 Operational description and TUMCHONS cic cicscscnerenees wisest sieqiaiasiacieducsiisqiinierta icouuaboaisssauiesieseSiadacaetedetentaetalcsssasilien 7 2 1 4 1 Overall functional description eeeeeeeeeseeeeeseressssrrrrrssssrrrrerssssrrrrerssssrrrrtrssssriiretrssserirrtesssrsrreetssssrrrreesssssrrr 7 2 1 4 2 CONTON CON INPUEI Orsan E EE E E EOE AE OEA OOA 8 2 1 4 3 Output I OF indicator LEDS issseiiisocrrrisorissossniirosinenrsorsverssarivotinersnedara anod nonni ananin anO ANOA E NUN Ea inani 8 2 1 4 4 Current transformers mains and the neutral for control circuitry eeeeseeeeseesseserrrrrssssrrrrrrrsssrrrrrrersssern 8 2 2 CONTROLOF
9. NCErCONNECHION cceccccsecccccecceccccceccccueccccuccccauceccusceecccsascesaececaeseeeaes 25 4 3 CONTROL CONNECTIONS wccccoucdsvccanceensssosdonseuadsaiucsieve dewucaweosuadeadwoddieasiieuesiodsdenuadueeduavoudtdedseeewduweteus dessaweScswseoedsolseioenes 26 R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 3 28 1 TERMSAND ABBREVIATIONS cover There are two covers One protecting the power connections cable connection box cover the other hiding the control and CT connections front cover current transformer current sensor I O connections digital in and output connections for ON OFF RESET input Current Limit and Fault output M Sc Electronics OY MSc AHF 100 MSc Active Harmonic Filter 100A 3 wire 400Vac AHF100 3W 400 M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 4 28 2 TECHNICAL INFORMATION 2 1 Technical description 2 1 1 Introduction M Sc AHF 100 is an active filter which can be used to filter network harmonic currents The MSc AHF 100 is designed for both industrial and commercial environments M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 5 28 2 1 2 Technical data Electrical data Compensation current capacity 100A Mains nominal voltage 208V 400 V 440 V 480 V Y 10 exception 480 V 45 Nominal frequency Number of phases Connection type PE neutral connection is needed for t
10. Product overview 1 0 subject to changes without notice 10 28 2 2 2 Control interface inputs and outputs The control connections are the following X1 control input output technical information specification terminal 1 24Vdc output on off reset control voltage 2 on off reset input on off reset input Uin max 24Vdc 10 L1 load current transformer input CT1 52 galvanically isolated from PE and control electronics 3VA 5 ORs L2 load current transformer input 200 5A CT2 s2 galvanically isolated from PE and control electronics recommended cable cross 7 03s L3 load current transformer input section 2 5mm2 a s2 galvanically isolated from PE and control electronics o Mains neutral connection for control electronics recommended cable cross connection This is not a power connection section 1 5 mm2 X4 current limit output technical information specification terminal NO relay contact Current limit output Potential free relay contact 2A 24Vdc 230 Vac galvanically isolated from PE and control electronics This contact is closed when current limit is activated X11 fault output technical information 1 COM Fault output Potential free relay contact 2A 24Vdc 230 Vac 2 NCrelay contact galvanically isolated from PE and control NO relay contact electronics Contact 1 3 closes when any fault is active M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 11
11. arth PE point including M 6 nut Only use tools on the bolt heads The cable and fuse sizes are listed below recommended cross section 50mm Cu Earthing cable M ains fuse ampere rating and type 125A gG M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 19 28 4 2 Current transformers 4 2 1 Selection of current transformers and current transformer cables Each MSc AHF 100 unit in a complete system has to monitor the load current in order to determine the harmonic load and function correctly This is done by three current transformers CTs For proper operation of the MSc AHF 100 standard accuracy CTs with the following minimum specifications have to be used accuracy class 0 5 current transformer ratio 200A 5A for single unit burden 3VA for single unit max 7 m cable length with 2 5 mm cables burden for complete MSc AHF 100 system 6 units is 7 5 VA Maximum 7m cable length excluding interconnection cables between the M Sc AHF 100 units o each CT must be grounded to the PE with one of its terminals s1 Cabling recommendation o The wiring should be done with twisted pair or shielded cables If shielded cables are used then the shields should be grounded from both ends For longer cables lengths refer to the chart below VA BURDEN ON 5A SEC GT VA BURDEN ON LA SEC C T APPROX DISTANCE DOUBLE WIRE AUNI C T TO RELAY IN METERS It is strongly recommend
12. atic resets For more details on manual and automatic resetting see user manual See block diagram in chapter 2 1 4 1 2 1 4 3 Output I O indicator LEDs When the MSc AHF 100 has to limit its harmonic compensation current X4 1 2 is activated contact Is closed Further details on when this happens see information on Current limit LED indicator in chapter 2 2 1 and information in the user manual When a fault occurs or the ON OFF RESET input is in the OFF state the potential free output relay contact X11 1 3 closes and X11 1 2 opens One or more LEDs light up on the front cover The fault causes and corrective actions are explained in the relevant chapter further below If no fault is active and the ON OFF RESET input is in the ON state or the mains is off the contact X11 1 3 is open and the contact X11 1 2 is closed See block diagram in chapter 2 1 4 1 2 1 4 4 Current transformers mains and the neutral for control circuitry In order to put the MSc AHF 100 into operating condition three load current sensors CT1 CT3 the ON OFF RESET input the protective earth and the AC mains cables L1 L3 have to be connected The mains N cable is connected to the control electronics The neutral is not needed for the mains circuitry but a thin cross section 1 5 mm neutral connection is needed for the control circuits of the MSc AHF 100 See block diagram in chapter 2 1 4 1 R M Sc MSc AHF 100 Product overview 1 0 subjec
13. ed that the three CTs have the same characteristics nom max 100 A rms R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 20 28 The continuous harmonic RMS current reference signal from the load current transformers allowed for the M Sc AHF 100 is 2 5 A rms ln At this current reference the M Sc AHF 100 produces a 100 A rms output current M Sc AHF 100 CT inputs withstand surge currents which can occur e g due to load short circuit The maximum total secondary load current lse iS 5 A rms It is recommended to design the system such that the M Sc AHF 100 max output current does not exceed 140 A peak Exceeding the 140 A peak output current may lead to faulty operation of the M Sc AHF 100 Output recommended max 140 A peak M Sc AHF 100 Ih ref nom 2 5 A rms Note The maximum secondary load current leis 5 A rms Below a table with suitable CT ratios related to the total harmonic current and for one to six parallel connected M Sc AHF 100 With 2 5 A rms harmonic reference secondary current of CT the M Sc AHF 100 produces 100 output harmonic compensation current i e 100 A rms Please note that the use of higher primary current of CT reduces the M Sc AHF 100 output harmonic compensation current E g one MSc AHF 100 CT 250 5 instead of 200 5 gt M Sc AHF 100 max output compensation current 80 e the use of lower primary current of CT causes overcompensation of network harmonic
14. erview 1 0 subject to changes without notice 25 28 4 2 3 Current transformer cable interconnection WARNING Failure to connect the CTs to all units in an MSc AHF 100 system in an appropriate way will result in MSc AHF 100 malfunctioning and possibly severe damage of the unit In a multi unit MSc AHF 100 system all units have to be supplied with the CT measurement results In order to do this the CTs have to be cabled to each unit in a daisy chain fashion The connection principle is shown in the figure below for the CT of phase 1 which is fed to three up to six allowed MSc AHF 100 units The same approach has to be implemented for the other phases too The principle of the CT interconnection circuit for multi unit MSc AHF 100 system Is shown below Unit 1 Unit 2 Unit 3 CT terminal CT terminal CT terminal ol a2 ol 52 51 52 51 52 CT in LOAD Phase 1 Pi Pp R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 26 28 4 3 Control connections The control cable sizes and types are listed below Control and control electronics neutral connectors Connection method screw terminals torque 2 Nm and cross sections X1 Cross section 0 5 mm 4 mm X4 X11 0 25 mm 2 5 mm PE connectors for control and CT cable shield clamp connection grounding Cable type for control cable and current sensor Screened cable equipped with low impedance cables shield and grounded from both ends Pr
15. he control circuits Switching frequency Modularity parallel connectable without limitation Response time lt 1 ms Current measurements Power dissipation Noise level I O connections Potential free relay contact Digital input Dimensions wxhxd Weight Cooling Cooling air temperature 10 C 40 C Enclosure Electrical safety EN 61800 5 1 Protections and warnings Protections Inverter overtemp M ains overvoltage Phase fault Overcurrent DC link overvoltage LCL CAP overvoltage Inductor overtemp Warnings M ains undervoltage Current limit R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 6 28 2 1 3 Ambient conditions The M Sc AHF 100 is suitable for indoor wall mount installation in a well ventilated area without dust and excessive aggressive gases where the ambient operating conditions do not exceed the following values Storage transportation temperature 40 C 70 C in the protected package Relative humidity 0 95 RH non condensing non corrosive no dripping water Cooling air required 650 m h Air quality chemical vapours IEC 721 3 3 MSc AHF 100 in operation class 3C2 Ambient operating temperature Cooling air 10 C 440 C temperature Air quality mechanical particles IEC 721 3 3 MSc AHF 100 in operation class 382 Altitude 100 load capacity no derating 1000 m 1 derating for each 100 m above 1000 m max 3000 m 50 150 Hz EN50178
16. oceed as follows The control cable terminals are located under the front cover Remove the four M 4 Torx T20 screws shown in the picture below left in order to lift the front cover towards you and to remove it The location of the control terminals X1 X4 and X11 can be seen in the picture below right Grounding of the control cable shield and current transformer cable shields is done to PE clamp terminals four M4 Torx T20 screws 27 28 X1 connection terminal for ON OFF RESET input X11 connection terminal M for FAULT output X4 connection terminal for CURRENT LIM IT output PE clamp connections for cable shields C MSc AHF 100 Product overview 1 0 subject to changes without notice 28 28 Check that the control signal connectors are well connected before closing the front cover of the M Sc AHF 100 The pictures below show the numbering of the X1 X4 and X11 terminals X11 numbering Gra pe ra f re cy TLE uy oA aiJ amp bv XI numbering X4 numbering
17. r unit must be directed away from the air intake of the upper unit The amount of cooling air required is indicated below Also make sure that the temperature of the cooling air does not exceed the maximum ambient temperature of the MSc AHF 100 Please ensure that the air used for cooling does not contain conductive particles significant amounts of dust or corrosive or otherwise harmful gases The cooling air intake temperature must not exceed the operating temperature Cooling air required is 650 m h air quality IEC 721 3 3 50 00009 D000 6 0090 tel 00000000A D900 00000 6 38900 60000 909999 20000000000 eecences eeeceees EE E EEEE o eseenaes 0900060505 00000000 00000009 SOO0000 Cooling space A 80mm free space to both sides of the M Sc AHF 100 free space between two M Sc AHF 100 B 300mm free space above the M Sc AHF 100 free space underneath the M Sc AHF 100 free space in front of MSc AHF 100 C 200 mm R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 16 28 A O o o WARNING The MSc AHF 100 is able to operate on mains voltages 208 V 400 V 440 V 480 V with a tolerance range of 10 480V 5 Since operation at the upper limits of voltage and temperature may reduce its life expectancy the MSc AHF 100 should not be connected to systems for which it is known that over voltages 15 will be sustained indefinitely Exce
18. rrent of MSC AHF 100 system total harmonic output current of lanr 5 400 x 100 Arms x 40 x2 100 Arms M Sc AHF 100 system see equation above This means that with 2 MSc AHF 100 units 100 of are compensated R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 22 28 4 2 2 Current transformer installation and connection The location of the CTs is critical to ensure the proper operation of the MSc AHF 100 The CTs are the eyes of the MSc AHF 100 and it will react in accordance with the information supplied by them A Pe WARNING Special care has to be taken for the connection and location of the CTs wrong CT installation is the most common source of problems found at the commissioning stage WARNING In an MSc AHF 100 system consisting of more than one MSc AHF 100 unit the same CT information has to be supplied to all the units This must be done through a series connection configuration By default the MSc AHF 100 is provided with CT terminals that are not shorted WARNING When connecting the CTs of a live system to the MSc AHF 100 the secondaries of the CTs have to be shorted Failure to do so may result in CT explosion and consequent damage to the installation and or to the MSc AHF 100 unit Once the connections to the MSc AHF 100 have been made the CT secondary short circuit cables must be removed The basic rules for successful CT installation are given next see block
19. s E g one MSc AHF 100 CT 150 5 instead of 200 5 gt M Sc AHF 100 overcompensates harmonics by 33 Total harmonic current Number of parallel connected MSC AHF 100 units Ih Harmonic compensation factor of harmonics current rms A CT ratio 100 Area where harmonics are overcompensated 50 5 3 20 100 100 Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 21 28 800 1600 5 13 25 38 50 63 75 11 44 66 Calculation of total harmonic output current of M SC AHF 100 system single or parallel units laHF X x lh x40 xN lanr total output current of M SC AHF 100 system single or parallel units A X CT ratio lsec Iprim 9 5 200 total harmonic current A N number of MSC AHF 100 units 40 internal current reference amplification factor of MSC AHF 100 unit fixed cannot be changed Case study Load and harmonics Example for load and harmonics l maXx 200A I 100 A rms Ipeak 200 A M Sc AHF 100 specifications 1 MSc AHF 100 unit lpeak lt 140 A recommended 1 MSc AHF 100 unit max 100 A harmonic output current Conclusions number of MSc AHF 100 units required 2 units lpeak gt 140 A 2 units allow for Ipeak lt 280 A CT 400 5 see table above for ln 200 A harmonic compensation factor 2 units 100 A 100 A 200 A 100 of lh of total harmonic current see table above for 200 A i e maximum harmonic output cu
20. ssive voltage levels may lead to MSc AHF 100 damage 4 Electrical installation WARNING The MSc AHF 100 Is not designed to be connected to systems where one phase serves as neutral The MSc AHF 100 must be connected to the mains in parallel with the loads which are drawing harmonic current from the AC mains WARNING The M Sc AHF 100 does not incorporate protective power line fuses Hence the customer has to ensure that the feeding cables to each MSc AHF 100 are adequately protected taking into account the M Sc AHF 100 rating and the cable section used Basic MSc AHF 100 functionality can be obtained after connection of e Ground PE per enclosure e Three power cables L1 L3 The power lines must be protected by appropriately sized fuses e 3 CTs 200A 5A burden 3VA max 7m cable length one per phase to be connected to MSc AHF 100 unit e Neutral 1 5 mm for control circuits e O connections for Fault and Current Limit outputs e Parallel units The CTs have to be selected depending on the number of parallel CTs See chapter 4 2 below for details on parallel units and their connection R M Sc MSc AHF 100 Product overview 1 0 subject to changes without notice 17 28 4 1 Power connections 4 1 1 Selection of the power cable size Several types of power cable can be used to connect the MSc AHF 100 to the mains Local regulations and habits often determine the user s choice Note however that due to the internal
21. t to changes without notice 9 28 2 2 Control of MSc AHF 100 2 2 1 LED indicators The LED indicators give you information on both fault and normal situations For corrective actions and more detailed information see user manual n MSc AHF 100 O M Sc OFF Overcurrent Control 7 Ei Inverter overtemp DC link overvoltage Mains overvoltage LCL CAP overvoltage Phase fault Inductor overtemp Current limit Mains undervoltage Start sequence Inhibit Power ON gt Reset Oe MM001281E x LED indication LED status and colour Contotore fer red blinking red Inverter overtemp on red on red MSc AHF 100 stopped due to missing phase or abnormally low less than Phase fault 50 of nominal mains voltage Current imi on yellow M Sc AHF 100 has reached its maximum output current or the inverter y temperature is abnormally high charging or mains voltage abnormally low M Sc AHF 100 stopped Paner ON on green Overcurrent on red DC link overvoltage _ on red on red M Sc AHF 100 stopped DC link capacitor overvoltage or LCL filter capacitor penny every age overvoltage if Control OFF LED is blinking 1Hz at the same time Inductor overtemp on red MSc AHF 100 stopped internal inductor temperature limit exceeded Mains undervoltage on yellow MSc AHF 100 stopped M ains voltage abnormally low less than 80 of nominal on yellow MSc AHF 100 stopped M Sc MSc AHF 100
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