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LW30-126 Outdoor HV SF6 Circuit Breaker

Negotiable MOQ: 5 Sets (Price negotiable depending on order volume and customization)

Key Specifications

Place of Origin:

China

Brand Name:

GEM

Model Number:

LW30-126

Liaoning Mec Group Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao/Shanghai

Delivery Detail:

Delivery time depends on order quantity.

Place of Origin China

Brand Name GEM

Model Number LW30-126

Type Other, High Voltage, outdoor SF6 three-phase circuit breaker

Poles Number 3

Specifications

LW30-126 SF6 circuit breaker
1. Simple structure
2. Compactness
3. Low noise and high relability
4. Double sealing system

HV Vacuum Circuit Breaker

Ambient Condition

Main Technical Parameters

Item		Unit	LW35-72.5	LW35-126	LW35-145	LW35-252
Rated voltage		kV	72.5	126	145	252
Rated current		A	3150			4000
Rated frequency		Hz	50
Rated short circuit breaking current		kA	40			50
Rated short time withstand current(3s)		kA	40			50
Short line fault breaking current		kA	30/36			45/37.5
Rated peak withstand current		kA	100			125
Rated out-of-phase breaking current		kA	10			12.5
Rated line charging breaking current		A	10	31.5	50	160
Rated SF₆ gas pressure(at 20°C)		MPa	0.4	0.5		0.6
Main loop resistance		µΩ	≤ 40	≤ 45		≤ 60
Operation sequence			O-0.3s-CO-180s-CO
Mechanical endurance		times	10000
SF₆ gas leakage rate(per year)		%	≤ 1
Moisture content(V/V)		ppm	≤ 150
Creepage distance	Across the open contacts	mm	2300	3950	≥ 3950	7812
	To earth	mm	2300	3950	≥ 3950	7812

Insulation Level

Item		Unit	LW35-72.5	LW35-126	LW35-145	LW35-252
1 min power frequency withstand voltage(r.m.s)	Across the open contacts	kV	140	230	265	460
1 min power frequency withstand voltage(r.m.s)	Between phases/phase to earth	kV	140	230	265	460
Lighting impulse withstand voltage(full wave 1.2/50µs) (peak)	Across the open contacts	kV	325	550	650	1050
	Between phases/phase to earth	kV	325	550	650	1050
5 min power frequency withstand voltage at 0 MPa SF₆ pressure	Across the open contacts	kV	55	95	109	220
	Between phases/phase to earth	kV	55	95	109	220

SF₆ Gas Pressure(at 20°C )

Item	Unit	LW35-72.5	LW35-126	LW35-145	LW35-252
Rated working pressure, P_N	MPa	0.4±0.015	0.5±0.015	0.5±0.015	0.6±0.015
Pre-filled gas alarming pressure,P ₁	MPa	0.35±0.015	0.45±0.015	0.45±0.015	0.52±0.015
Min, service gas pressure, P ₂	MPa	0.33±0.015	0.43±0.015	0.43±0.015	0.5±0.015
Filled pressure for transport, P₃	MPa	0.025