----- 保护继电器
Introduction and general philosophies technical tools of the relay engineer phasors, polarity, and symmetrical components basic relay units protection against transients and surges instrument transformers in relaying microprocessor relaying fundamentals system grounding and protective relaying generator protection motor protection transformer and reactor protection station-bus protection line and circuit protection back-up protection system stability and out-of-step relaying reclosing and synchronizing load-shedding and frequency relaying.
{{comment.content}}