126kV Intelligent Combination Electrical Appliance Miniaturized Common Box GIS with 2000-3150A Rated Current and 40kA Breaking Current for High-Voltage Power Transmission Systems Yihe

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首頁 > 所有系列 > Other > 126kV Intelligent Combination Electrical Appliance Miniaturized Common Box GIS with 2000-3150A Rated Current and 40kA Breaking Current for High-Voltage Power Transmission Systems Yihe

126kV Intelligent Combination Electrical Appliance Miniaturized Common Box GIS with 2000-3150A Rated Current and 40kA Breaking Current for High-Voltage Power Transmission Systems Yihe

Qingdao Yihe Electric Group Co., Ltd. 1985

China

Summary

The 126kV Intelligent Combination Electrical Appliance (Miniaturized Common Box GIS) is a high-performance, gas-insulated metal-enclosed switchgear designed for modern high-voltage power transmission and smart grid systems. With a rated current range of 2000-3150A and a rated short-circuit breaking current of 40kA, this advanced GIS solution integrates intelligent components, digital measurement, and networked control to enable efficient, reliable, and智能化 power management. Featuring a compact design, low SF6 gas leakage rate (<0.3%/year), and high insulation performance, it supports a wide range of applications in renewable energy integration, energy storage systems, and smart substations. Ideal for demanding scenarios requiring high short-time withstand current (40kA/4s) and lightning impulse withstand voltage (550kV), this product ensures stable operation and long-term durability in critical infrastructure.More

Specifications

Rated voltage:

126 kV

Rated current:

1600、2000、2500、3150 A

Rated short-circuit breaking current:

50 kA

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Description Download

Project		Parameter
Rated voltage		126 kV
Rated insulation level	1min power frequency withstand voltage (break/ground)	（230+73）kV/230kV
	Lightning impulse withstand voltage (break/ground)	（550+103）kV/550 kV
Rated frequency		50 Hz
Rated current		1600、2000、2500、3150 A
Rated short-circuit breaking current		50 kA
Rated peak withstand current		100 kA
Short time withstand current (effective value)		40 kA/4s
SF6 gas leakage rate		<0.3%/year
SF6 gas humidity	Electrolytic decomposition products (handover acceptance value/long-term operation allowable value)	≤150/300uL/L
	No electrolytic decomposition products (handover acceptance value/long-term operation allowable value)	≤250/500uL/L
Partial discharge	Each interval/individual insulation component	≤5/3Pc
Structural layout	Circuit breaker	Three phase common box/three phase separate box
	Main busbar	Three phase common box
Spacing ruler		0.8-1.5m