LW3-12I,II outdoor high-voltage sulfur hexafluoride circuit breaker-[Quotation-data]--Shanghai Huabang Industrial Business-www.91way.com

Product name：

LW3-12I,II outdoor high-voltage sulfur hexafluoride circuit breaker

specification：

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Category：

High voltage electrical appliances -- SF6 gas circuit breaker

Price：

factory price

Brand：

Shanghai

Place of Origin：

China

Available Quantity：

batch

delivery cycle：

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Shanghai Beiyuan Industry and Trade Co.,Ltd
+86-21-66770508
+86-139101609058

91way@163.com
13916500500(Wechat)

LW3-12I,II outdoor high-voltage sulfur hexafluoride circuit breakerDetailed product description：

LW3-12 Type I and II Outdoor High Voltage Sulfur Hexafluoride Circuit Breaker is a new type of outdoor high voltage circuit breaker that uses SF6 gas as the insulation and arc extinguishing medium. The arc extinguishing chamber adopts the principle of arc rotation, and the circuit breaker and operating mechanism are an integral structure. Compared with other 10kV outdoor circuit breakers, this product has significant advantages such as simple structure, reliable arc extinguishing and insulation performance, low operating power, high rated parameters, long electrical life and non maintenance cycle.

operating mechanism
The products are divided into two types: Type I and Type II. The Type I circuit breaker is equipped with a manual energy storage spring operating mechanism, and the A-phase and C-phase are equipped with 3-level current transformers for protection inside the body. It has three functions: manual disconnection, manual full closing, and automatic tripping and disconnection for overcurrent (or short circuit).
Type II circuit breaker electric energy storage spring operating mechanism has multiple functions such as electric energy storage, closing, opening, manual energy storage, closing and opening, and automatic tripping of overcurrent (or short circuit) (achieved by internal or external current transformers). It can not only achieve manual on-site operation but also remote control and automatic reclosing operation.

Technical parameters of LW3-12I, II type outdoor high-voltage sulfur hexafluoride circuit breaker

rated voltage	12kV	rated current	630A
Rated short-time withstand current	12.5kA,16kA	mechanical life	2000 times
Rated peak withstand current	31.5kA,50kA	Rated short-circuit breaking current	12.5kA,16kA
Number of disconnections under rated short-circuit current	20 Times	Rated working pressure	0.35Mpa

2. Usage environment
1. Environmental temperature: upper limit+40 ℃, lower limit -30 ℃
2. Altitude: not exceeding 3000 meters.
3. The wind pressure shall not exceed 700Pa.
4. Earthquake intensity: not exceeding 8 degrees
5. Installation site: There should be no fire, explosion hazard, chemical corrosion, or severe vibration.
6. Pollution level: Class III, Class IV
3. Product model
LW3-10ⅠⅡⅢ/400.630-6.3.8.12.5
The meanings represented by each section are as follows:

LW3-12I, Type II Outdoor High Voltage Sulfur Hexafluoride Circuit Breaker Model Description

Technical Specifications

serial number	name		Unit	Data
one	rated voltage		KV	ten
two	Maximum operating voltage		KV	twelve
three	Rated insulation level (when the circuit breaker is filled with SF6 gas at 0.25MPa). At 20 ℃)	Lightning impulse withstand full wave	KV	seventy-five
		Power frequency withstand voltage for one minute		forty-two
		Rain test with pressure resistance		thirty-four
		Reverse impact withstand voltage		eighty-five
four	Insulation current at zero gauge pressure	Power frequency withstand voltage for one minute	KV	thirty
		Reverse withstand voltage for one minute		thirty
		Maximum phase voltage for five minutes		nine
five	rated current		A	four hundred point six three zero
six	Rated short-circuit breaking current		KA	six point three	eight	twelve point five	sixteen
seven	Open and close the cross phase ground reclosing circuit		KA	five point five	seven point one	ten point nine	fourteen
eight	Breaking current under zero gauge pressure		A	four hundred point six three zero
nine	Rated operating sequence	Type I		Split -180s Split -180S Split
		Type II and III		Split -180s Split -180S Split
ten	Rated closing current (peak value)		KA	sixteen		twenty	thirty-one point five
eleven	Rated dynamic stability current (peak value)		KA	sixteen		twenty	thirty-one point five
twelve	Rated thermal stability current		KA	six point three		eight	twelve point five
thirteen	Rated thermal stability time		S	four
fourteen	Just closed speed		M/S	2.6±0.2
fifteen	instantaneous speed		M/S	2.6±0.2
sixteen	Inherent closing time	Type II and III	S	≤0.06
seventeen	Inherent opening time	Type I	S	≤0.06
		Type II and III		≤0.04
eighteen	Rated working pressure		MPa	0.35（20℃）
nineteen	Minimum working pressure		MPa	0.25（20℃）
twenty	Annual gas leakage rate		%	less than 1
twenty-one	Mechanical stability operation		time	six thousand
twenty-two	weight	Type I	Kg	one hundred and twenty-two
		Type II		one hundred and thirty
		Type III		one hundred and thirty-two
twenty-three	Moisture content of SF6 gas		PPM	≤150

LW3-12I, Type II Outdoor High Voltage Sulfur Hexafluoride Circuit Breaker

LW3-12I,II outdoor high-voltage sulfur hexafluoride circuit breaker（schematic diagram）