12kv High Voltage Vacuum Interrupter VAC308A - Durable and Efficient

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: ACB
• Model NO.: TD-12/4000-40(VAC308A)
• Poles Number: 3
• Type: Circuit Breaker
• Certification: ISO9001-2000, CE, CCC
• Power Frequency Withstand Voltage: 42kv
• Lightning Impulse Withstand Voltage: 75kv
• Mechanical Life: 10000 Times
• Rated Clearance Between Open Contacts: 10~12mm
• Rated Contact Stroke: 3~4mm
• Transport Package: Carton
• Specification: VAC308A
• Trademark: VACEM
• Origin: Wenzhou, China

Product Description

Vacuum interrupter for vacuum circuit breaker
TD-12/4000-40(VAC308A)
 

General description

The 12kV series vacuum interrupter is a top-of-the-line product that boasts a ceramic insulating shell, a middle sealing or built-in fixed shielding tube, and copper and chromium alloy contact material. The cup-shaped longitudinal magnetic electrode has been optimized to ensure that the electromagnetic field distribution is uniform and reasonable, which greatly improves the stability of the breaking capacity. Additionally, a special sophisticated process has been implemented to improve the insulation level of the product.
This vacuum interrupter is perfect for a wide range of applications. VACEM has introduced two series of 12kV vacuum interrupters (for air insulation, embedded insulation, or those that require external insulation protection) to match with relevant indoor and outdoor vacuum circuit breakers or vacuum distribution devices. It is especially useful as a control and protection device in transmission and distribution electrical power grids with a frequency of 50Hz/60Hz, rated voltage of 12kV, rated current of 630A-4000A, and rated short circuit breaking current of 5kA-40kA. VI is mainly used for VZN63-12kV series MV vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.

If you're looking for a durable and efficient vacuum interrupter, look no further than the 12kv High Voltage Vacuum Interrupter VAC308A. With its top-of-the-line features and exceptional performance, this product is sure to exceed your expectations. Keywords for this product include Vacuum Interrupter, Hv Vacuum Interrupter, and 12kv Vacuum Interrupter.

Main technical parameter

Specification of VI

Parameter item	Unit	Data
Rated voltage	kV	12
Rated current	A	4000
Rated frequency	Hz	50/60
Rated short-time power frequency withstand voltage(1 min)	kV	42
Rated lightning impulse withstand voltage	kV	75
Rated short-circuit breaking current	kA	31.5/40
Rated peak withstand current	kA	100
Rated short-circuit making current	kA	100
Rated short-time withstand current	kA	40
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	300±50
Circuit resistance at lowest rated contact force	μΩ	≤15
Contact limit erosion	mm	3
Internal gas pressure	Pa	≤1.33×10^-3
Weight of moving parts	kg	2.7
Storage life	year	20

Specifications required for matched switchgear

Parameter item	Unit	Data
Rated clearance between open contacts	mm	11±1
Average opening speed	m/s	1.1±0.2
Average closing speed	m/s	0.6±0.2
Rated contact pressure	N	4500±300
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	3.5±0.5

Product show

 

International fairs

 

Company show