12kv High Voltage Vacuum Interrupter for Embedded Pole Applications

• 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-12/1250-25(31.5)(VAC311)
• 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: VAC311
• Trademark: VACEM
• Origin: Wenzhou, China

Product Description

Vacuum interrupter for embedded pole
TD-12/1250-25(VAC311)
TD-12/1250-31.5(VAC311)
 

General description

Introducing the 12kV High Voltage Vacuum Interrupter for Embedded Pole Applications! Get ready to experience a whole new level of power and reliability with this cutting-edge product. Designed with precision and engineered to perfection, this vacuum interrupter is here to revolutionize the way you handle high voltage applications. H=275mm. VI is mainly applied to VZN63-12kV series embedded pole of indoor MV vacuum circuit breaker. Meets or exceeds the requirement of IEC62271-100 and E2 level in GB1984-2003.
With its ceramic insulating shell, this interrupter ensures maximum insulation and protection. Say goodbye to worries about electrical leakage or breakdowns. The middle sealing or built-in fixed shielding tube further enhances the safety and performance of this remarkable device. You can trust it to handle even the most demanding tasks with ease.
But that's not all! The copper and chromium alloy contact material guarantees exceptional conductivity and durability. This means you can rely on this interrupter to deliver consistent and efficient performance, time after time. No more interruptions or fluctuations in your power supply. It's time to take control and enjoy uninterrupted power like never before.
Whether you're in the energy sector, manufacturing industry, or any other field that requires high voltage applications, this vacuum interrupter is a game-changer. It's time to upgrade your equipment and elevate your operations to new heights.

Don't miss out on this incredible opportunity to enhance your power systems. Get your hands on the 12kV High Voltage Vacuum Interrupter for Embedded Pole Applications today and experience the difference for yourself. Power up with confidence and let this exceptional product take your business to the next level.

Main technical parameter

Specification of VI

Parameter item	Unit	Data
Rated voltage	kV	12
Rated current	A	1250
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	25/31.5
Rated short-time withstand current	kA	63/80
Rated peak withstand current	kA	63/80
Rated short-circuit making 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 atomsphere	N	100±40
Force required to hold contact open at full stroke	N	160±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	1.1
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	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	3.5±0.5

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