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

Model NO.: TD-40.5/1250(1600)-25(31.5) (VAC331)
Delivery: FOB
Minimum order quantity: 1 piece

Quantity:

Product Description

Basic Info.

Model NO.	TD-40.5/1250-25(VAC331) TD-40.5/1600-31.5(VAC331)
Poles Number	3
Certification	ISO9001-2000, CE, CCC
Power Frequency Withstand Voltage	95kV
Lightning Impulse Withstand Voltage	185kV
Mechanical Life	10,000 times
Rated Clearance Between Open Contacts	21~23mm
Rated Contact Stroke	6~10mm
Trademark	VACEM
Origin	Wenzhou, China

Vacuum interrupter for vacuum circuit breaker

TD-40.5/1250-25(VAC331)
TD-40.5/1600-31.5(VAC331)

1.General description

Product features:

40.5kV series vacuum interrupter adopts a ceramic insulating shell, a middle sealing or built-in fixed shielding tube, and cooper and chromium alloy contact material. Optimizations of the structure design of the cup-shaped longitudinal magnetic electrode makes the electromagnetic field distribution uniform, reasonable, and improve the stability of the breaking capacity. Special sophisticated process improves the insulation level of the product.

Application:

Matched with relevant indoor&outdoor vacuum circuit breaker or vacuum distribution device, it is especially as control and protection device in the transmission and distribution electrical power grids with frequency 50Hz/60Hz, rated voltage 40.5kV, rated current 630A-2500A, rated short circuit breaking current 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.

2.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 operations of rated short circuit breaking current	times	30
Mechanical life	times	10000
Contact closing force due to bellows and atmosphere	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
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±2