摘要
某住宅小区的消火栓泵距离变电所较远,功率较大,通过计算全压起动时变电所母线电压及电动机端子电压,并结合笼型电动机的特点,决定采用全压起动。并分析了全压起动与降压起动两种不同的起动方式对干线保护开关选择的影响。
The fire hydrant pump in a subway section is farther away from the substation and its power is big .Through calculating the substation bus voltage and motor terminal voltage, combined with cage motor characteristics, it is determined to adopt full voltage to start. It analyzes the effect of motor starting method on the breaker of line protection.
出处
《电气技术》
2011年第3期57-59,共3页
Electrical Engineering
关键词
全压起动
降压起动
灵敏度
full voltage start
step voltage start
sensitivity
