Detail Information

Rated Voltage:	7.2kV, 12kV, 17.5kV, 24kV, 36kV, 40.5kV	Rated Current:	400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A,
Frequency:	50/60Hz	Poles Number:	3
Material:	Galvanized Sheet And Accessories	Certificate:	ISO CCC
Function:	Control And Protection	Installation Location:	Power Plants, Substations And Power Systems Etc
Warranty:	12 Months
High Light:	17.5kV SF6 CB , 12kV SF6 CB , 7.2kV sf6 gas circuit breaker

Product Description

China LW25-126 outdoor H.V.A.C live tank SF6 circuit breaker

China LW25-126 outdoor H.V.A.C live tank SF6 circuit breaker

China LW25-126 outdoor H.V.A.C live tank SF6 circuit breaker

Drawings

China LW25-126 outdoor H.V.A.C live tank SF6 circuit breaker

1. Environmental Condition

Ambient temperature:-40℃~+40℃
Altitude:≤2000m
Wind pressure:≤700Pa
Daily temperature differenc:25℃
Icing thickness:≤10mm
Air pollution level:Ⅲ

2. Technical Data

No.	Item		Unit	Data
1	Rated voltage		KV	126
2	Rated current		A	3150
3	Rated frequency		HZ	50
4	First pole to clear factor			1.5
5	Rated short circuit breaking current		KA	40
6	Rated short-circuit current (peak)		KA	100
7	Rated short-circuit withstand current		KA	40
8	Rated power frequency withstand voltage(1min)	Phase to earth	KV	K·230
8	Rated power frequency withstand voltage(1min)	Phase to phase	KV	K·(230+70)
9	Rated lightning impulse withstand voltage	Phase to earth	KV	K·550
9	Rated lightning impulse withstand voltage	Phase to phase	KV	K·(550+103)
10	Rated peak withstand current		KA	100
11	Rated out of step current		KA	10
12	Near fault current		KA	90%1K
13	Electrical life of rated short circuit breaking current		times	20
14	Rated short circuit duration		s	4
15	Rated line charging close current		A	31.5
16	Rated operation sequence			O-0.3s-CO-180s-CO35
17	Main circuit resistance		μΩ	≤35
18	Rated SF6 gas pressure		MPa	0.6
19	SF6 gas leakage rate		ppm	≤0.55
20	Moisture content of SF6 gas (V/V)			≤150
21	Mechanical life		times	10000
22	Electric distance	Phase to earth	mm	3906/3150
22	Electric distance	Phase to phase	mm	3906/3150
23	Each filled with SF6 gas quality		kg	8
24	Quality of each circuit breaker		kg	1700

3. Application

SF6 live tank circuit breaker LW25-126 is outdoor unit which is developed by our company and Xi'an High Voltage Apparatus Research Institute with sulfur hexafluoride gas as insulation and arc extinguishing medium and principle of single variable pressure cabinet type arc extinguishing. The product is suitable for 126KV three-phase AC 50HZ power system, which is used for points and load current , overload current and short circuit current.

4.Standards

GB1984
GB/T28001-2011 idt OHSAS18001:2007
GB/T24001-2004 idt ISO14001:2004

5. Features

a) Reliable breaking performance

b) Reliable mechanical operating performance:high operational reliability, mechanical life up to more than 10000 time

c) Reliable insulation

d) Reliable sealing performance

e) Strict process of product components

Place of Origin:	XIAN
Brand Name:	XG
Certification:	ISO,CCC
Model Number:	LW8...

Minimum Order Quantity:	1 SET
Price:	USD300-1000
Packaging Details:	WOODEN CASE
Delivery Time:	7-15 DAYS
Payment Terms:	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability:	2000 SET

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