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MODVAR Low voltage reactive power compensation modules

Installation manual

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Содержание MODVAR

Страница 1: ...MODVAR Low voltage reactive power compensation modules Installation manual ...

Страница 2: ... 5 minutes short circuit the capacitor terminals with a piece of insulated cable to confirm discharge 2 0 Inspection on receipt Inspect the packing and immediately report any damages Unpack the MODVAR module and check that Data on the label correspond to those of your purchase order MODVAR module is not damaged Any loss or damage should be notified immediately to your nearest ABB agent 2 1 Storage...

Страница 3: ... reduce thermal stress on capacitors 3 0 MODVAR modules layout There are two types of MODVAR modules MODVAR complete in one tray MODVAR segregated MODVAR complete in one tray 1 Discharge resistor 2 Capacitor 3 Reactor 4 Fuse and fuse base 5 Contactor 6 Mounting plate 1 Reactor 2 Fuse and fuse base not shown 3 Contactor 4 Mounting plate 5 Cables 6 Discharge resistors 7 Capacitors 1 1 2 3 3 4 4 5 5 ...

Страница 4: ... Low voltage reactive power MODVAR Low voltage reactive power compensation modules 3 1 MODVAR dimensions Figure 3 3 MODVAR dimensions Figure 3 4 MODVAR dimensions 455mm 575mm 8mm fixing holes R W B R W B B W R 575mm 472mm 455mm 300mm ...

Страница 5: ...ot provided Make sure that the rigidity of the support and the screws are sufficient to bear the weight about 50 kg of the MODVAR module s Air clearances 25 mm to walls and flange to flange between modules MODVAR modules must be fixed horizontally so as to allow airflow circulation see blue arrows in the figure below Figure 4 1 MODVAR air flow direction ...

Страница 6: ... Design guideline The difference between ambient temperature outside the cubicle and measured temperature must be lower than 10 C To meet that requirement the temperature probe must be located on top of the air duct The service conditions specified in the IEC 60831 1 section 4 are applicable As per IEC 60831 1 section 3 21 the ambient temperature for capacitors is the air temperature around the ca...

Страница 7: ...n Electrical connection overview Figure 4 3 MODVAR electrical connection diagram Supply cable sizing The cables must be sized for a current of 1 5 times nominal current In minimum The nominal current can be calculated with the following formula Formula abbreviations Qn reactive power output in kvar Vn line voltage phase to phase The temperature around the cables must also be considered according t...

Страница 8: ...eaks are less than or equal to 100 times nominal rms current Earthing Earthing is achieved through fixing points of the MODVAR mounting tray Fuses and fuse base The fuses are made with non isolated gripping lugs double indicator and contact blades compliant to DIN VDE 0636 Part 201 and IEC 60269 2 1 Figure 4 5 HRC fuse Figure 4 4 ABB UA75 contactor Fuses fit into a three phase bus mounting fuse ba...

Страница 9: ...and reduce the lifetime of the capacitor Harmonics Installation of capacitors on networks disturbed by harmonics may require special precautions especially when there is a risk of resonance phenomena Please ensure that your installation is as per the over current rating according IEC 60831 standards Contact ABB for technical support 7 0 Maintenance Ensure safety procedures are completed see paragr...

Страница 10: ... to IEC60831 Maximum average over 1 year 35 C Maximum average over 24h 45 C Minimum ambient temperature 25 C Fuse ABB gG or gL 50 63 100 and 125 A Contactor ABB UA75 Control voltage 230 240V at 50Hz Required clearance 25 mm minimum to walls Capacitor losses Less than 0 5 W kvar discharge resistor losses included Contactor and fuses losses With UA75 contactor 0 82 W kvar Tolerance on capacitance 0 ...

Страница 11: ...C60831 1 2002 IEC60831 2 1995 Ui 3kV Cat 25ºC Self healing dry Resistance phase phase Ω Capacity phase phase μF Warning After disconnecting from supply wait 2 min and check for absence of residual voltage before handling the parts S N PN Made in Australia Figure 8 1 Typical label of a MODVAR module ...

Страница 12: ...eresford Road Lilydale VIC 3140 Phone 61 3 9735 7333 Fax 61 3 9735 3863 E mail lv powerquality au abb com www abbaustralia com au Copyright 2013 ABB All rights reserved ABB is working continuously to improve our products We therefore reserve the right to change designs dimensions and data without prior notice ...

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