摘要
研究了低阻与高阻接地方式的阻值确定标准。对以电缆为主的城市电网宜采用低阻接地方式，取值标准为10～20n；而高阻接地方式仅适用于电网电容电流在10A以下，以架空线为主的电网，取值标准为。对供电可靠性要求较高的重要用户采用消弧线圈串电阻接地方式是发展的必然趋势。
The paper mainly does research on the standard of resistances decision for the low and high resistance ground modes. The city networks mailycomposed of cable lines should use the low resistance ground mode and thestandard value is 10～20Ω. The high resistance ground mode is only suitablefor the networks which are mainly composed of overhead lines and the capacitive current being below 10A and the standard value is equal to . It is thetendency for some important users which require high reliability to use the extinguishing are coil connecting resistance ground mode.
出处
《现代电力》
1997年第3期49-53,共5页
Modern Electric Power
关键词
中性点接地
接地电阻
配电网
标准
power distribution system, neutral grounding, transient over-volt-age, safety level
