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XGN15-24 Box-type Fixed A.C. Metal-enclosed Switchgear

  • XGN15-24 Box-type Fixed A.C. Metal-enclosed Switchgear
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Detail

Overview

XGN-24 box-type AC metal closed ring network switchgear is a new generation of sulfur hexafluoride load switches, which can be configured with circuit breakers, isolating switches, current transformers, voltage transformers, lightning arresters and other electrical components. The entire cabinet is air-insulated and is suitable for power distribution automation. It is a compact and expandable metal-enclosed switchgear. It has the characteristics of beautiful appearance, simple structure, small size, flexible operation, and reliable interlocking.

This ring network cabinet is suitable for three-phase AC 50Hz, rated voltage 12kV ring network power supply system, and is widely used in industrial and civil cable ring networks and power supply terminal projects. It is especially suitable for the following places: power distribution in urban residential areas, small secondary substations, switch offices, industrial and mining enterprises, shopping malls, airports, subways, tunnels, wind power generation, etc.


Product Main Features

◆Increase the main transformer capacity and improve the power supply capacity of the substation.

◆Improve the power transmission capacity of distribution lines and reduce the number of distribution lines.

◆Increase the power supply radius of medium voltage lines.

This voltage level was trial run in a small area earlier. At the request of the State Grid Corporation of China, the 20kV voltage level was promoted on a pilot basis in Jiangsu Province. Now China Southern Power Grid is also preparing to promote the 20kV voltage level in Guangdong and other places. It can be predicted that eventually 24kV equipment will Dominate the market.


The Main Technical Parameters

ProjectUnit20kV SF% ring network switchgear

Rated voltage

kvtwenty four
Rated frequencyHz50
Rated currentA630A ≤100 (Load switch-fuse combination cabinet)
Rated short circuit breaking currentkA31.5
Rated closing current (peak value)kA50
Rated thermal stable currentkA/3s20
Rated dynamic stable current (peak value)kA50
insulation levelPower frequency withstand voltagephase and groundsq./1min65
Fracturesq./1min79
Lightning impulse withstand voltagephase and groundkv125
Fracturekv145
Rated active load breaking currentA630
Rated current charging breaking currentA25
Main circuit resistance300
Power function Spring type: DC/C 220V/480V
Rated transfer currentA870
Mechanical life Load switch: 3000 times; Grounding switch: 2000 times

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