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| The Protection Method for 220kV Transformer of Long-Distance Power Supply Substation |
| Liu Yutao |
| Datang Huangdao Power Generation Co., Ltd, Qingdao, Shandong 266500 |
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Abstract Aimed at a kind of long-distance power supply transformer wiring, “optical differential+ transformer differential” protection methods were put forworded in order to avoid loop interference about long differential protection current loop secondary wiring distance,large power transformer load and difficult selection problem.The principle and implementation of the protection methods were discussed and the relevant circuit connection and cooperation were designed.
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Published: 19 April 2017
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[2] PCS-931L_X_说明书_国内中文_国内标准版_X_R1.00
[3] NSR-371A-SD母线保护说明书V1.01-20150608. |
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2017, Vol. 18 
