TD-12/630-12.5 Ceramic vacuum arc extinguishing chamber-[Quotation-data]--Shanghai Huabang Industrial Business-www.91way.com

Product name：

TD-12/630-12.5 Ceramic vacuum arc extinguishing chamber

specification：

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Category：

spare parts and accessories -- Ceramic arc extinguishing chamber

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)

TD-12/630-12.5 Ceramic vacuum arc extinguishing chamberDetailed product description：

Overview
The ceramic vacuum arc extinguishing chamber for TD-12/630-12.5 circuit breaker adopts corrugated ceramic as the insulation shell, with CuCr50 alloy contacts and cup-shaped longitudinal magnetic structure. It has the characteristics of large current interruption, high insulation level, strong arc extinguishing ability, long service life, small size, simple maintenance, no explosion hazard, no pollution, low noise, etc. The outdoor vacuum circuit breaker assembled with it is used for control and protection in the transmission and distribution systems of power, machinery, chemical, metallurgical, mining, railway and other departments, and is suitable for places with frequent operations.

Explanation of Ceramic Vacuum Arc Extinguishing Chamber for TD-12/630-12.5 Circuit Breaker

parameter name Parameter name	unit Unit	numerical value Value
Rated voltage	kV	twelve
Rated current	A	six hundred and thirty
Rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage Short time power frequency withstand voltage (1min)	kV	forty-two
Lightning impulse withstand voltage	kV	seventy-five
Rated short circuit breaking current	kA	twelve point five
Rated peak withstand current	kA	thirty-one point five
Rated short circuit making current	kA	thirty-one point five
Rated short time withstand current	kA	twelve point five
Rated duration of short circuit	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current Rated breaking current of back to back capacitor bank	A	four hundred
Rated short circuit breaking current times	Next time	thirty
Mechanical endurance	time	ten thousand
Closing force due to bellows and atmosphere	N	60±30
Force required to hold contacts open at full stroke at rated opening distance	N	160±30
Circuit resistance at lower limit of rated contact force	μΩ	≤35
Contact limit abrasion	mm	three
Gas pressure inside vacuum interrupter	Pa	≤1.33×10ˉ^three
Weight of moving parts	kg	zero point three five
Weight of vacuum interrupter	kg	one point two

Mechanical parameters for using circuit breakers

Clearance between open contacts	mm	8±1
Average opening speed	m/s	1.2±0.2
Average closing speed	m/s	0.8±0.2
Rated contact force	N	1200±200
Contact bounce duration at closing operation	ms	≤2
Out of simultaneity of contact closing and opening	ms	≤2
Bouncing back amplitude of opening contact	mm	≤2

Ceramic vacuum arc extinguishing chamber for TD-12/630-12.5 circuit breaker

TD-12/630-12.5 Ceramic vacuum arc extinguishing chamber（schematic diagram）