Analysis on influence of ground electrode current in HVDC on AC power network.
直流输电系统接地极电流对交流电网的影响分析。
They provide system security and immediate reliable low level ground fault detection on three-phase AC resistance grounded or grounded electrical distribution systems.
此类继电器能够增加系统安全性，并对三相交流接地电阻或接地配电系统进行可靠的低级接地故障检测。
When the unit is plugged into an AC outlet it automatically self-tests, checks for correct polarity and tests the integrity of the equipment ground, i. e. the green wire in the branch circuit.
当单位自动地被塞住入ac出口它自检、检查对于正确极性和测试设备地面的正直，即。绿色导线在分支电路。
Cesc Fabregas and Emmanuel Adebayor were on target as Arsenal became the first English club to beat AC Milan on their own ground.
因为阿森纳成为第一支在米兰主场取胜的英国球队，阿德巴约和法布雷加斯成为了瞩目焦点。
When a HVDC system operates in ground-return mode, some problems such as noise rising significantly, overheating etc. occur in AC transformers, or even some transformers would be damaged.
HVDC系统以大地回路方式单极运行时，其大地回路直流会给交流变压器带来一些问题，例如，变压器噪音明显增大，过热现象，甚至引起变压器损坏。
When a HVDC system operates in ground-return mode, some problems such as noise rising significantly, overheating etc. occur in AC transformers, or even some transformers would be damaged.
HVDC系统以大地回路方式单极运行时，其大地回路直流会给交流变压器带来一些问题，例如，变压器噪音明显增大，过热现象，甚至引起变压器损坏。
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