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What is high voltage switchgear?
Sep 11 , 2020
The high-voltage switchgear is an electrical equipment based on circuit breakers. It means that the manufacturer connects the relevant high and low voltage electrical appliances (including control appliances, protective appliances, and measuring appliances), bus bars, current-carrying conductors, Insulators, etc. are assembled in a closed or open metal cabinet as a device for receiving and distrib...
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What is Switchgear?
Sep 11 , 2020
Switchgear (also known as a complete set of switches or a complete set of power distribution devices), it is electrical equipment based on circuit breakers, refers to the manufacturer according to the requirements of the primary electrical wiring diagram, the relevant high and low voltage electrical appliances (including control appliances, protection Electrical appliances, measuring appliances), ...
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New Environmental N2 Inflatable High Voltage RMU 12kV
Oct 13 , 2020
Today we would like to introduce one of our New Environmental N2 Inflatable High Voltage RMU This new 12kV environment-friendly gas ring network cabinet is filled with nitrogen gas, which does not emit any toxic substances, is safer and environmentally friendly, and meets the needs of miniaturized space. Suitable for various power distribution systems-including extremely harsh environmental condit...
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What is the significance of five prevention of high voltage switchgear
Oct 23 , 2020
In order to ensure the safe operation of power network, the safety of equipment, person, and prevent misoperation, GB3906--1991 (3 ~ 35 kV AC metal Enclosed Switching Equipment) is clearly stipulated metal enclosed switching equipment shall have the following functions: 1、To prevent opening and closedisconnector(Isolate handcart)on-load. 2、To prevent mis-opening and mis-closing of circuit breakers...
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12kV STANDARDIZED CUSTOMIZED SWITCHGEAR
Oct 29 , 2020
According to relevant sources,for the latest bidding equipment of State Grid, the proportion of standardized customized switchgear will reach 30% in 2019, 60% in 2020 and 100% in 2021.Since September this year, Fujian, Jiangsu, Hunan, Tianjin, Inner Mongolia, Anhui, Sichuan and other provinces and cities distribution network material agreement inventory bidding procurement have standardized custom...
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The 4th China Power Distribution Technology Summit Forum
Nov 02 , 2020
On the afternoon of October 27, 2020, the China Power Distribution Technology Summit Forum was hosted by the China Electric Power Research Institute Co., Ltd. and the China Electricity Council Technology Development Service Center. The main forum of the conference will be live broadcast simultaneously, with 14,000 participants online. Industry experts shared and discussed content such as the unifi...
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VB5 (ZN21B) -12 Vacuum Circuit Breaker Product Structure and Working Principle
Nov 06 , 2020
1. Electrical Structure (see Figure 1) Figure 1 Schematic diagram of solid-sealed pole structure The electrical main circuit part of VB5 (ZN21B) adopts advanced epoxy resin casting technology, and the vacuum interrupter is directly sealed in epoxy resin, and there is a silicone rubber buffer layer between the two, which becomes a casting type circuit breaker pole. column. This process makes the co...
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Switchgear Maintenance And Inspection
Nov 10 , 2020
Suggestions for maintenance and inspection of switchgear users should pay special attention to the following points: Regularly check the status of the circuit breaker and make necessary adjustment according to the requirements of the installation and operation manual of vacuum circuit breaker. Check the propulsion mechanism and interlock of the handcart to make it meet the requirements of misopera...
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High Voltage Switchgear Installation Of Busbar
Nov 18 , 2020
1．Main bus installation The main busbar use rectangular busbar in switchgear. In consideration of the convenience of installing the main bus, the main bus is segmented made according to the width and length of the cabinet. The basic steps of main bus installation are as follows: 1）After inspecting the busbar bushing without damage, install busbar bushing and supporting busbar bushing board 2）Wipe ...
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