Analysis on incomplete current differential microcomputer protection for medium and low voltage busbar

Huadian Technology ›› 2011, Vol. 33 ›› Issue (7): 28-29.

• 研究与开发 • Previous Articles Next Articles

Analysis on incomplete current differential microcomputer protection for medium and low voltage busbar

ZHANG Chengyu, YANG Guoquan

Guodian Nanjing Automation Corporation Limited, Nanjing 211100, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-07-25 Published:2011-07-25

Abstract

Abstract: Aiming at the features of medium and low voltage busbar system, the difficulties in implementation of busbar protection for this system were analyzed. The differences between the complete current differential protection scheme and the incomplete current differential protection scheme were analyzed and compared. Based on data acquisition and transformation through the analog channel of each protection device, the protection configuration, algorism selection and setting calculation were carried out respectively; and a complete solution for incomplete current differential protection was put forward.

Key words: complete current differential protection, incomplete current differential protection, busbar protection, setting calculation, solution

ZHANG Chengyu;YANG Guoquan. Analysis on incomplete current differential microcomputer protection for medium and low voltage busbar[J]. Huadian Technology, 2011, 33(7): 28-29.

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Analysis on incomplete current differential microcomputer protection for medium and low voltage busbar

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