特殊工作條件對塑殼斷路器性能的影響
李林1，余意平2
1 樂清市瑞光電氣有限公司，浙江 樂清 325603；2 浙江加西亞電子電器有限公司，浙江 樂清 325603
摘 要：針對標準型斷路器應用于非正常工作條件下的問題，以熱磁式塑殼斷路器為例，分析了直流電路、頻率及海拔高度變化對斷路器性能的影響，并給出了在設計和使用過程中針對斷路器溫升、短路分析能力、脫扣動作特性等性能可能發生的變化所采取的應對措施，確保了標準型斷路器在非正常工作條件下運行的可靠性。
關鍵詞：塑殼斷路器；直流電路；頻率；海拔；性能；影響
中圖分類號：TM561 文獻標識碼：A 文章編號：1007-3175(2014)02-0026-03
Impact of Abnormal Working Conditions on Performance of Moulded Case Circuit Breaker
LI Lin1, YU Yi-ping2
1 Yueqing RIGAN Electrical Co., Ltd, Yueqing 325603, China;2 Zhejiang GACIA Electronical & Electrical Appliance Co., Ltd, Yueqing 325603, China
Abstract: Aiming at the problem of standard circuit breaker applying in abnormal working conditions, this paper took the thermal magnetic moulded case circuit breaker as an example to analyze the impacts from DC circuit, frequency and change of high above sea level on the circuit breaker performance, giving countermeasures to be taken in design and application process aiming at circuit breaker temperature rise, short circuit analysis ability and tripping action characteristics etc possible performance changes, which ensures the operation reliability of standard circuit breakers under abnormal working conditions.
Key words: moulded case circuit breaker; DC circuit; frequency; altitude; performance; impact
參考文獻
[1] GB 14048.2—2008 低壓開關設備和控制設備 斷路器[S].
[2] GB/T 20645—2006 特殊環境條件 高原用低壓電器技術要求[S].
