zero-phase sequence protection 零相序保护装置
Inverse phase sequence protection 逆相序保护
zero phase-sequence protection 零序保护
zero phase sequence protection 零相序保护装置
Based on the analysis of main fault types of LV (Low Voltage) flameproof motor, the negative sequence protection principle is proposed for its asymmetric short circuit fault and open phase fault.
通过分析低压隔爆电动机的主要故障类型，针对不对称性短路故障和断相故障提出了采用负序保护原理进行保护的方案。
Zero-sequence current criterion, negative sequence current criterion and phase current variation can be used to improve the performance of breaker failure protection for ACF sub-bank.
针对单纯采用相电流判据的不足之处，本文提出增加零序电流、负序电流及电流变化量判据，以有效地避免保护误动或者拒动。
High / low pressure switch protection, protection, hot melt season, high exhaust heat protector for a compressor, overcurrent relay, phase sequence protector.
高/低压力开关保护、排气过高保护、热熔赛、压缩机热保护器，过流继电器、相序/缺相保护器等。
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