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Gas Insulated Metal-enclosed Switchgear (GIS) ZF-252/T4000-50

Negotiable

Located Region:

China

Address:

No.6 Xianghai Road, Xiamen Torch High-tech Zone (Xiang'an) Industrial Park

Biz Consulting:

+86 592 3671600

E-mail:

Online Contact

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Service Conditions:

Installation Location: Indoor or outdoor;

Ambient Air Temperature: -30℃~+40℃ (special order -50℃~+50 ℃);

Air Humidity: Relative humidity: daily average not greater than 95%;

Monthly average not greater than 90%;

Saturated vapor pressure: daily average not greater than 2.2 kPa;

Monthly average not greater than 1.8 kPa;

Altitude not exceeding 1000 m (special order unlimited);

Solar radiation intensity 1000 W/m² (0.5 m/s wind speed);

Pollution level IV;

Wind speed not exceeding 34 m/s (corresponding to 700 Pa on cylindrical surface);

Ice coating level 10;

Seismic fortification intensity 9 degrees, horizontal acceleration ≤0.5 g, vertical acceleration ≤0.25 g;

Secondary system electromagnetic interference amplitude not exceeding 1.6 kV.

Item		Unit	Parameter
Rated Voltage		kV	252
Rated Frequency		Hz	50
Rated Current		A	2000/3150/4000
Rated Short-circuit Breaking Current		kA	50
Rated Short-time Withstand Current		kA	50
Rated Short-circuit Duration		S	4
Rated Peak Withstand Current		kA	125
Rated Short-circuit Making Current (peak)		kA	125
Near-zone Fault Breaking Current		kA	37.5,45
First-pole-to-clear Factor			1.3
Rated 1min Power Frequency Withstand Voltage (rms) Dry Test/Wet Test	To ground	kV	460
	Across open contacts	kV	460+146
	Phase-to-phase	kV	460
Rated Lightning Impulse Withstand Voltage (peak)	To ground	kV	1050
	Across open contacts	kV	1050+206
	Phase-to-phase	kV	1050
Partial Discharge Level Not Greater Than	One Bay	pC	≤3
Partial Discharge Level Not Greater Than	Single Insulator	pC	≤2
Radio Interference Voltage		μV	≤500
Line Charging Current Switching Test C2 Class		A	125
Cable Charging Current Switching Test C2 Class		A	250
Rated SF6 Gas Pressure (20℃ gauge pressure) Circuit Breaker/Others		MPa	0.6/0.5
Circuit Breaker Closing Time		ms	≤100
Circuit Breaker Opening Time		ms	≤30
Circuit Breaker Make-break Time		ms	<60
Circuit Breaker Asynchrony	Closing	ms	≤3
Circuit Breaker Asynchrony	Opening	ms	≤2
Disconnecting Switch Bus Transfer Current Switching Capacity		A	2400
Fast Earthing Switch Short-circuit Making Current Capacity		kA	125
Circuit Breaker Mechanical Life		Operations	10000
Disconnecting/Earthing Switch Mechanical Life		Operations	10000
SF₆ Gas Annual Leakage Rate		%	≤0.1
Moisture Content of SF6 Gas in Other Gas Rooms		V/V	≤250×10-
Control Cabinet Protection Level			IP5XW
Noise Level (A-weighted)		dB	≤85