TD14A-12/1250-31.5B Vacuum arc extinguishing chamber-[Quotation-data]--Shanghai Huabang Industrial Business-www.91way.com

Product name：

TD14A-12/1250-31.5B Vacuum arc extinguishing chamber

specification：

Zoom in on the image

Category：

spare parts and accessories -- Ceramic arc extinguishing chamber

Price：

factory price

Brand：

Shanghai

Place of Origin：

China

Available Quantity：

batch

delivery cycle：

Spot goods (or inquire by telephone)

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

91way@163.com
13916500500(Wechat)

TD14A-12/1250-31.5B Vacuum arc extinguishing chamberDetailed product description：

Introduction to TD14A-12/1250-31.5B vacuum arc extinguishing chamber:
Overall Dimension Drawing

parameter name	parameter value	unit
rated voltage	twelve	kV
rated current	one thousand two hundred and fifty	A
rated frequency	fifty	Hz
Short term (1-minute) power frequency withstand voltage	forty-two	kV
Lightning impulse withstand voltage	seventy-five	kV
Rated short-circuit breaking current	thirty-one point five	kA
Rated peak withstand current	eighty	kA
Rated short-circuit closing current	eighty	kA
Rated short-time withstand current	thirty-one point five	kA
Rated short-circuit duration	four	s
Rated breaking current of a single capacitor bank	six hundred and thirty	A
Rated back-to-back capacitor bank breaking current	four hundred	A
Rated operating sequence	O-0.3(0.5)s-CO-180s-CO
Rated short-circuit breaking current times	fifty	time
mechanical life	twenty thousand	time
Contact self closing force	140±50	N
Contact reaction force at rated opening distance	230±50	N
Circuit resistance at lower limit of rated contact pressure	twenty	μΩ
Allowable wear thickness of contacts	three	mm
Gas pressure inside the vacuum arc extinguishing chamber	zero point zero zero one	Pa
Quality of the sports section	one point four	kg
Quality of vacuum arc extinguishing chamber	four point seven	kg
contact gap	11±1	mm
Average opening speed	1.1±0.2	m/s
Average closing speed	0.6±0.2	m/s
Rated contact pressure	3100±200	N
Contact closing bounce time	two	ms
Non synchronous closing and opening of contacts	two	ms
Rebound amplitude of the opening contact	two	mm
outer diameter	one hundred and six	mm
installation height	two hundred and twenty-five	mm
appearance	Umbrella skirt, climbing distance ≥ 240

TD14A-12/1250-31.5B Vacuum arc extinguishing chamber（schematic diagram）