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PRODUC TS FOR HIGH VOLTAGE APPLIC ATION

AT Current Instrument Transformer

Instruction for Installation, use and 
maintenance 

Summary of Contents for AT41

Page 1: ... PRODUCTS FOR HIGH VOLTAGE APPLICATION AT Current Instrument Transformer Instruction for Installation use and maintenance ...

Page 2: ...ructions 4 Mounting 4 Connection of transformer primary side 4 Connection of transformer secondary side 4 4 Instructions for use 5 Routine test report 5 5 Maintenance instructions before installation 5 6 Transport Storage 5 7 Disposal 5 8 Handling 5 9 Normative references 6 10 Dimensions 5 11 Lifetime 5 12 Service 7 Appendix 1 Examples of outlets 8 Appendix 2 Dimensional drawings AT35 and AT41 Dim...

Page 3: ...ended current 9 rated output burden 10 accuracy classes 11 year of manufacture 12 serial number Label abbreviation definitions 3 Instruction for installation General information Instrument transformer is an electrical equip ment and the electrical installation of the instru ment transformer can be done by skilled person nel only The level of experience age and eligibility criteria for persons work...

Page 4: ...hreaded rots are delivered on cus tomer request Connection of transformer primary side The AT transformers don t have its own primary conductor The primary conductor is designed as a bushing with its own insulation or insulated ca ble Connection of the transformer secondary side Secondary outlets are marked by color Which color is assigned to which wire you can see in ta ble below Outlets marking ...

Page 5: ...rage the transformers have to be pro tected from direct impact of solar radiation The transformers are delivered in wooden crates or fixed on transport pallets Transported transformers must be protected to avoid any damages Right option of transport must be wisely chosen 7 Disposal Materials used in instrument transformers are considered as materials without environmental impact and materials are ...

Page 6: ...ed IEC 60044 1 IEC 60044 6 IEC 61869 2 AS 60044 1 ČSN EN 60044 1 ČSN EN 60044 6 IEEE Std C57 13 6 2005 ANSI C57 13 1978 CSA Std CAN3 C13 M83 BS EN 60044 1 When agreed transformers made in accordance with other standards can also be supplied or in accordance with other release version of the above standards 10 Dimensions Dimensions of the current transformers acc ap pendix 2 11 Lifetime The product...

Page 7: ...7 Appendix 1 Examples of outlets ...

Page 8: ...d depends on customer request The fixing parts are a part of a delivery mounting parts can be ordered separately as an attachment Testing primary Secondary outlets SIGN VALUE Variant C NOTE Variant C with optional testing primary see catalogue and optional length of secondary outlets depending on customer request The fixing part are a part of delivery mounting parts can be ordered separately as an...

Page 9: ...ry secondary outlets screening electrodes is optional and depends on customer request The fixing parts are a part of a delivery mounting parts can be ordered separately as an attachment AT38 Testing primary Secondary outlets Secondary electrodes 1000 1 0 0 0 ...

Page 10: ...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 2018 ABB All rights reserved C O N TA C T U S ABB s r o EPDS Brno Videnska 117 619 00 Brno Czech Repu...

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