HG11-145 Gas-Insulated Metal-Enclosed Switchgear 145kV, 3150A, 40kA - Product

The HG11-145 GIS (Gas-Insulated Switchgear) is composed of several standard functional modules, such as the GCB circuit breaker, TPS isolation-grounding combination switch, PT voltage transformer, CT current transformer, BSG bushings, and BUS busbar. These modules share the same interface forms and dimensions, allowing for various combinations to meet the design and layout requirements of different substations. Each module is combined based on principles that facilitate future expansions and modifications, with gas-insulated isolators minimizing the mutual influence between adjacent modules.

The flexible modular design enables the substation to be easily optimized for design and layout, considering various conditions and factors such as the main circuit arrangement, incoming lines and cable routing, building dimensions, accessibility, reserved expansion space, and rapid fault elimination.

No.	Item	Unit	Parameter Value
1	Rated Voltage	kV	145
2	Rated Frequency	Hz	50/60
3	Rated Current	A	1250~3150
4	Rated Short-Circuit Breaking Current	kA	40
5	Rated Short-Circuit Making Current	kA	108
6	Full Breaking Time	ms	≤60
7	Breaker Cable Charging Current	A	160
8	Breaker Line Charging Current	A	50
9	Breaker Closing Time	ms	≤100
10	Breaker Opening Time	ms	≤40
11	Breaker Non-simultaneity	Opening	ms
		Closing	ms
12	Rated Short-Time Withstand Current (RMS)	kA	40
13	Rated Short-Circuit Duration	s	3
14	Rated Peak Withstand Current (RMS)	kA	108
15	Rated Short-Time Power Frequency Withstand Voltage	To Ground	kV
	(1min)	Breaker	kV
16	Rated Lightning Impulse Withstand Voltage	To Ground	kV
	(Peak Value)	Breaker	kV
17	SF6 Arc Extinguishing Chamber	Rated Pressure	MPa
	Gas Pressure (20℃, gauge pressure)	Alarm Pressure	MPa
		Lock Pressure	MPa
18	Breaker Electrical Life		E2 Level
19	Rated Operating Sequence		O-0.3s-CO-180s-CO
20	Partial Discharge	Full Interval	pC
	(1.2 times rated voltage)	Insulating Part	pC
21	Interval Weight	T	1~5
22	Annual Leakage Rate		≤0.1%