高压断路器防跳回路相关优化试验方法

Optimization of Testing Method for Anti-bouncing Circuit of High-voltage Circuit Breaker

摘要:

可靠的防跳回路可以有效防止断路器跳跃，避免高压断路器非正常频繁分合闸，对于保障人身、电网及设备安全意义重大。针对防跳回路设计及其试验方法展开探讨，阐述了防跳回路的典型实现原理、常见缺陷及在工程实际中的应对措施，对比了两类防跳试验方法的差异，指出了现有防跳试验方法检验不够全面的缺陷，并提出增加跳位监视支路外端子电位测量这一优化措施，保证了防跳回路验收的全面性与有效性。

Abstract:

A reliable anti-bouncing circuit can effectively prevent high-voltage circuit breakers from abnormal bouncing, which is of great significance for ensuring the safety of personnel, power grid and equipment. The design and testing methods of anti-bouncing circuit are discussed. The typical principle, common defects and corresponding measures in practical engineering of anti-bouncing circuit are described, and then the differences between two testing methods are compared. It is pointed out that the inspection for current testing methods is not comprehensive enough. Therefore, an optimization measure is proposed, that is, adding the potential measurement of external terminal of closing monitoring branch, which ensures the comprehensiveness and effectiveness of acceptance of anti-bouncing circuit.