INTELLIGENT TRIPPING DEVICE FOR LOW VOLTAGE MOULDED CASE CIRCUIT BREAKER Calculation for Tripping Current Settings of Instantaneous Release for Circuit Breaker in Second Side of Distribution Transformer
配电变压器低压侧断路器瞬时脱扣器动作电流整定值的计算
the operation characteristics of fast tripping current protection, adaptive current protection and distance protection are compared.
比较了电流速断、自适应电流速断及距离保护的动作特性。
The AC was commuted and filtered, then providing for the closing coil excitation current; Charge to the capacitor to prepare the necessary tripping coil excitation current.
交流电经整流滤波后,为合闸线圈提供励磁电流;对电容器充电,以备分闸线圈提供所需励磁电流使用。
this paper analyzed the transformer protection method and the distinguishing method of inrush current. the protection tripping sensitivity and speed was improved.
本文分析研究了微机变压器主保护方案和励磁涌流的判别方法,提高保护动作灵敏度和速度。
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