摘要
短路短延时、短路瞬时保护特性试验是万能式断路器综合性能测试的主要项目之一,测试要求试验电流中不含有非周期直流分量。本文通过对自耦调压器、变压器等值模型的分析,对含有自耦调压器、变压器元件的万能式断路器短路试验电路中非周期直流分量与合闸相角的关系进行了研究,并提出了一种万能式断路器短路保护特性试验方法。仿真结果验证了该方法的可行性与正确性。
Instantaneous and short time short-circuit protection performance test is one of the major tests of Air Circuit Breaker comprehensive performance,and requires that the testing current should not contain non-periodic DC component.With the analysis of auto voltage regulator and transformer equivalent model,this paper researches the relationship between non-periodic DC component and switching phase angle in the Air Circuit Breaker short-circuit protection performance test circuit with two auto voltage regulators and one transformer,and presents a method of Air Circuit Breaker short-circuit protection performance test.The simulation results verify the feasibility and correctness of the method.
出处
《电测与仪表》
北大核心
2010年第7期37-41,共5页
Electrical Measurement & Instrumentation
基金
江苏省高校自然科学研究计划项目(07KJD470004)
关键词
万能式断路器
短路试验
合闸相角
air circuit breaker
short-circuit test
switching phase angle
