Tuesday, September 13, 2022
当三相负载不对称,且每相电流应不超过额定定子电流(IN),其负序电流分量(I2)与额定电流IN之比应小于()。A、5%B、8%C、10%D、12%...
Saturday, April 27, 2024
根据《供电营业规则》第六十六条规定,哪些情形须经批准后方可中止供...
Tuesday, September 13, 2022
变压器测量绝缘电阻时,绝缘电阻值应不低于前次所测数值的(),吸收比(R60″/R15″)应不低于()。...
Thursday, December 8, 2022
1号发电机正常一天允许漏氢量不大于()。A、≯15m3/天;B、≯12m3/天;C、≯10m3/天;D、≯8m3/天。...
Friday, September 23, 2022
Tuesday, September 13, 2022
为什么不能用隔离开关接通和断开电路的负载电流和短路电流?...
Friday, October 14, 2022
Friday, September 15, 2023
电动机一次回路送电,按电源()、()依次进行操作;停电时相反。...
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
用电检查的范围包括()。A、对客户电气设备进行日常检查B、变更用电业务检查C、组织开展营业普查D、参与客户用电事故处理...
Thursday, February 8, 2024
Friday, September 16, 2022
发电机静子电压每低于额定值1%时,其静子电流可以大于额定值的()...
Friday, September 16, 2022
通过开展95598业务集约管理提升“三个一”活动,将月度人工电话...
Tuesday, September 13, 2022
电力客户申请减少用电容量的期限,应根据客户所提出的申请确定,但最...
Friday, September 16, 2022
1号高工变的额定容量是()MVA。A、50/50-50;B、50/30-30;C、50;D、30。...
Thursday, December 8, 2022
发电机非全相运行(主变220kV开关发生非全相运行)的现象?...
Friday, September 16, 2022