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Xi'an Xigao Electricenergy Group Co., Ltd.

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Province/State:shanxi

Country/Region:china

Contact Person:Emma

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China 66KV SF6 Ckt Breaker For Three Phase AC 50HZ Power System wholesale

66KV SF6 Ckt Breaker For Three Phase AC 50HZ Power System

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Brand Name :XG

Model Number :LW8...

Certification :ISO,CCC

Place of Origin :XIAN

MOQ :1 STES

Price :USD300-1000

Payment Terms :L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability :2000 SETS

Delivery Time :7-15 DAYS

Packaging Details :WOODEN CASE

Frequency :50/60Hz

Poles Number :3

Phase :3

Medium :SF6

Material :galvanized sheet and accessories

Certificate :ISO14001 BS OHSAS18001

Standard :IEC/GB

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66KV SF6 circuit breaker

Product Description

66KV SF6 circuit breaker

Drawings

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	72.5
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

Self-energy type SF6 circuit breaker LW36B-66 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 66KV 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