TD-40.5/1600-31.5 Vacuum arc extinguishing chamberDetailed product description：

Product Overview:

TD-40.5/1600-31.5 vacuum arc extinguishing chamber adopts copper chromium contact material, cup-shaped longitudinal magnetic field structure, stainless steel corrugated tube, ceramic shell and exposed shielding tube. The product has the characteristics of large breaking capacity, good insulation performance, and long mechanical life. Paired with corresponding vacuum circuit breakers, it can be widely used in power systems as a control and protection device for circuits, especially suitable for places with frequent operation.

Main technical parameters of vacuum arc extinguishing chamber

parameter item	unit	parameter
rated voltage	kV0	forty point five
rated current	A	one thousand and six hundred
rated frequency	Hz	fifty
Short term (1-minute) power frequency withstand voltage	kV	ninety-five
Lightning impulse withstand voltage	kV	one hundred and eighty-five
Rated short-circuit breaking current	kA	thirty-one point five
Rated peak withstand current	kA	eighty
Rated short-circuit closing current	kA	eighty
Rated short-time withstand current	kA	thirty-one point five
Rated short-circuit duration	S	four
Rated breaking current of a single capacitor bank	A	six hundred and thirty
Rated back-to-back capacitor bank breaking current	A	four hundred
Rated operating sequence		Fen-0.3S-180S-Fen
Rated short-circuit breaking current breaking times	time	twenty
mechanical life	time	ten thousand
Contact self closing force	N	170±30
Contact reaction force	N	320±30
Circuit resistance at lower limit of rated contact pressure	uΩ	≤30
Thickness of allowable wear of contacts	mm	three
Gas pressure inside the vacuum arc extinguishing chamber	Pa	≤1×10
Quality of the sports section	kg	four point one
Quality of vacuum arc extinguishing chamber	kg	twelve point eight

Mechanism characteristics and parameters of vacuum switch equipment for TD-40.5/1600-31.5 vacuum arc extinguishing chamber

parameter item	unit	parameter
contact gap	mm	25±2
Average opening speed	m/s	2.0±0.3
Average closing speed	m/s	0.8±0.2
Rated contact pressure	N	3100±200
Contact closing bounce time	ms	≤3
Non synchronous closing and opening of contacts	ms	≤2
Rebound amplitude of the opening contact	mm	≤2