摘要
高压变电所内屏蔽电缆屏蔽层的正确接地,对降低外部电磁场对微机型二次设备的干扰水平,起着重要作用。该文浅议屏蔽电缆屏蔽层一点、两点接地对电磁场屏蔽的机理,并提出了两点接地时应注意的问题。
The proper earthing of the shielded layer of cable in HV substation plays an important part in reducing electromagnetic interference to the microcomputer-based secondary facilities. This paper makes brief discussion on the mechanism of the electromagnetic field screening by means of single-point and two-point grounding of the shielded layer of cable and proposes some problems that have to be paid attention to in two-point grounding.
出处
《继电器》
CSCD
北大核心
2004年第13期78-79,81,共3页
Relay
关键词
高压变电所
电磁干扰
屏蔽电缆
接地
耦合电容
electromagnetic interference
single-point grounding
two-point grounding
