36kv 40.5kv Vacuum Interrupter for High Voltage Vacuum Circuit Breaker

• Electricity Type: AC
• Number of Pole: 3
• Phase: 3
• Main Circuit Rating Voltage: High Voltage
• Type: Ac Contactors
• Power Frequency Withstand Voltage: 95kv
• Model NO.: TD-40.5/1250-25(VAC331) TD-40.5/1600-31.5(VAC331)
• Lightning Impulse Withstand Voltage: 185kv
• Mechanical Life: 10000 Times
• Rated Clearance Between Open Contacts: 21~23mm
• Rated Contact Stroke: 6~10mm
• Transport Package: Carton
• Specification: VAC331
• Trademark: VACEM
• Origin: Wenzhou, China

Product Description

Vacuum interrupter for vacuum circuit breaker
TD-40.5/1250-25(VAC331)
TD-40.5/1600-31.5(VAC331)
 

General description

Introducing our 40.5kV series vacuum interrupter - a game-changing product that is sure to revolutionize the transmission and distribution of electrical power grids. With a ceramic insulating shell, a middle sealing or built-in fixed shielding tube, and copper and chromium alloy contact material, this product is designed to deliver unparalleled performance and reliability.
Our engineers have optimized the structure design of the cup-shaped longitudinal magnetic electrode to ensure that the electromagnetic field distribution is uniform, reasonable, and improves the stability of the breaking capacity. Additionally, a special sophisticated process has been implemented to improve the insulation level of the product, making it one of the most advanced vacuum interrupters on the market.
This product is perfectly matched with relevant indoor and outdoor vacuum circuit breakers or vacuum distribution devices, making it an ideal control and protection device for power grids with a frequency of 50Hz/60Hz, a rated voltage of 40.5kV, rated current of 630A-2500A, and rated short circuit breaking current of 12.5kA-31.5kA. VI is mainly applied to VZW7-40.5kV series outdoor vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.

So if you're looking for a vacuum interrupter that delivers exceptional performance, reliability, and efficiency, look no further than our 40.5kV series vacuum interrupter. It's the perfect choice for high voltage vacuum circuit breakers and is sure to exceed your expectations.
 

Main technical parameter

Specification of VI

Parameter item	Unit	Data
Rated voltage	kV	36/40.5
Rated current	A	1250/1600
Rated frequency	Hz	50/60
Rated short-time power frequency withstand voltage(1 min)	kV	95
Rated lightning impulse withstand voltage	kV	185
Rated short-circuit breaking current	kA	25/31.5
Rated peak withstand current	kA	63/80
Rated short-circuit making current	kA	63/80
Rated short-time withstand current	kA	25/31.5
Rated short-circuit duration	s	4
Rated single capacitor bank breaking current	A	630
Rated back to back capacitor bank breaking current	A	400
Breaking operation of rated short circuit breaking current	times	30
Mechanical life	times	10000
Contact closing force due to bellows and atomsphere	N	200±50
Force required to hold contact open at full stroke	N	320±60
Circuit resistance at lowest rated contact force	μΩ	≤20
Contact limit erosion	mm	3
Internal gas pressure	Pa	≤1.33×10^-3
Weight of moving parts	kg	3.0
Storage life	year	20

Specifications required for matched switchgear

Parameter item	Unit	Data
Rated clearance between open contacts	mm	22±1
Average opening speed	m/s	1.6±0.2
Average closing speed	m/s	0.7±0.2
Rated contact pressure	N	3100±200
Contact bouncing duration at closing operation	ms	≤2
Closing and opening non-simultaneity of contacts	ms	≤2
Maximum rebound during opening	mm	≤2
Rated contact stroke	mm	8±

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