ABB KOKM Series Instructions For Installation, Use And Maintenance Manual Download | Manualshive

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MEDIUM VOLTAGE PRODUC T

KOKM Cable current instrument

transformers

Instruction for Installation, use and
maintenance

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Summary of Contents for KOKM Series

Page 1: ... MEDIUM VOLTAGE PRODUCT KOKM Cable current instrument transformers Instruction for Installation use and maintenance ...

Page 2: ...for installation 4 General information 4 Safety instructions 4 Mounting 5 Connection of the transformer primary side 5 Connection of the transformer secondary side 5 4 Instructions for use 5 Routine test report 6 5 Instructions for maintanence 6 6 Transport Storage 6 7 Disposal 6 8 Handling 6 9 Normative references 7 Appendix 1 Examples of electrical wiring secondary marking ...

Page 3: ...0 mm possibility 6 8 10 12 14 16 18 20 22 24 30 Outer diameter C 148 mm Hole diameter D 60 mm Rate voltage 1 1 2 V Type KOKM indoor use 01 Where 1VLT5115001983 serial number KOKM 1EB8 type code of transformer 50 Hz rated frequency S1 S2 terminal marking 600 1A rated transformer ratio Ext 120 ratio extension 5 VA rated output burden 5P20 accuracy class 1 6 kV highest voltage for equipment power fre...

Page 4: ...r damaging to the transformer s secondary The secondary like this must be additionally grounded Mounting The KOKM type transformers are designed for low voltages of 0 72 3 kV KOKM 06 and KOKM 072 or 1 2 6 kV KOKM 1 without built in primary conductor Their use at higher voltage levels needs always the transformers to have combined with primary conductor provided with its own in sulation The primary...

Page 5: ...ent screw be sure that the thread hole and diameter is correct for non original screw Othervise there is high risk of damage of the terminal KOKM 072 xA 10 and KOKM 072 xB 10 secondary connection is done by terminal block VTRK 4 GY equipped with M3 screws with highest torque 0 8 Nm and lowest torque 0 6 Nm Maximal crosssections of secodnary cables are 4 mm2 strand or 6 mm2 solid conductor 4 Instru...

Page 6: ...trument transformers have to be disposed of in accor dance with national legislation relevant to do mestic waste disposal 8 Handling Most of the KOKM transformers weight less than 25 kg and consequently they can be handled manually In case of higher weight it is necessary to use carry belts threaded through the trans former internal opening ATTENTION The process of transformer han dling has to com...

Page 7: ... S1 S2 2S2 2S1 P1 P2 1S1 1S2 one secondary winding example 100 1 A A multi tap secondary winding example 50 100 1 A A two secondary winding example 800 5 5 A A A 7 Appendix 1 Examples of electrical wiring secondary marking ...

Page 8: ...le lack of information in this document We reserve all rights in this document and in the subject matter and illustrations con tained therein Any reproduction disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB Copyright 2019 ABB All rights reserved C O N TA C T U S ABB s r o ELDS Brno Videnska 117 619 00 Brno Czech Repu...

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