doc

Selection of 35KV grounding method

  • 2013-11-06
  • 20.5KB
  • Points it Requires : 2

The AL-JXB neutral point grounding method is to connect a resistor of a certain resistance value between the neutral point and the earth. The resistor forms a parallel circuit with the system\'s ground capacitance. Since the resistor is an energy-consuming element, it is also a capacitor charge release element and a resonant voltage-blocking element. It has certain advantages in preventing resonant overvoltage and intermittent arc grounding overvoltage. In the neutral point grounding method, the value of the resistor is generally selected to be smaller. When the system is single-phase grounded, the current flowing through the grounding point is controlled to be around 500A, and some are controlled to be around 100A. The current flowing through the grounding point is used to start the zero-sequence protection action and cut off the fault line.

unfold

You Might Like

Uploader
solarelec
 

Recommended ContentMore

Popular Components

Just Take a LookMore

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号
×