IEC 60076-25 Ed. 1.0:2023 (b)
電源変圧器－第25部：中性接地抵抗器
Power transformers - Part 25: Neutral grounding resistors
発行年月日：
2023-02-23
状態：
有効
邦訳版：
無
英語 46ページ
29,837 円（税込） 本体価格：27,125円
- 規格概要
-
IEC 60076-25:2023 applies to dry type natural air-cooled resistors, for neutral grounding of transformers and generators, in order to limit the earth fault current in power systems by means of metallic resistive elements.全文を表示する
For the purposes of this document, the resistor can be:- used alone or in combination with other electrotechnical products not covered by this document, such as (but not limited to): a step-down single-phase transformer, an open triangle or zig-zag transformer (where the neutral point is not available) and a Petersen coil reactor (in order to increase active power contribution to the fault or reduce time constant for proper protection operation or both);
- designed, manufactured and verified on a one-off basis or fully standardized and manufactured in quantity.
This document specifies:- the characteristics of the NGR;
- the service conditions requirements for NGRs;
- the tests and test methods for confirming that these conditions have been met;
- the requirements relating to marking for NGRs.
| TC |
TC 14 |
|---|---|
| ICS |
29.180 |
| 備考 |
