12kv High Voltage Integrated Pole for Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: VEP-12/1250-25(31.5) (VAC603)
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Circuit-Breaker Failure Protection
• Certification: ISO9001-2000, CE, CCC
• Power Frequency Withstand Voltage: 48kv
• Lightning Impulse Withstand Voltage: 95kv
• Mechanical Life: 10000 Times
• Clearance Between Open Contacts: 8-10mm
• Rated Short-Circuir Duration: 4s
• Transport Package: Carton
• Specification: VAC603
• Trademark: VACEM
• Origin: Wenzhou, China

Product Description

Embedded pole
VEP-12/1250-25(VAC603)
VEP-12/1250-31.5(VAC603)

General description

Get ready to experience the ultimate in reliability and stability with our 12kv High Voltage Integrated Pole for Vacuum Circuit Breaker! Our embedded pole uses top-of-the-line insulation material to seal the vacuum interrupter and main loop conductive element, creating a strong and durable insulation support. With its simple assembly, stable weight, and high reliability, this product is perfect for frequent operation places like electric power, machinery, chemical industry, metallurgy, mining, and more. Plus, its strong environmental pollution tolerance means you can trust it to perform even in the toughest conditions. 

This amazing product is designed to be matched with relevant indoor and outdoor vacuum circuit breakers or vacuum distribution devices, making it an essential component for any high voltage system. With a frequency of 50Hz/60Hz and rated voltage options of 12kV, 17.5kV, 24kV, 27.5kV, and 40.5kV. This embedded pole is mainly applied to VZN63-12kV series VCB.(H=275mm). Meets or exceeds the requirement of IEC60694 and JB-T11203-2011. Our 12kv High Voltage Integrated Pole for Vacuum Circuit Breaker is the perfect choice for anyone looking for a reliable and efficient solution. So why wait? Order yours today and experience the power of our Embedded Pole/Vacuum Circuit Breaker Parts/12kv Embedded Pole!

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(1min)	kV	48
Rated lightning impulse withstand voltage	kV	95
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	400
Rated back to back capacitor bank breaking current	A	400
Rated operating sequence		O-0.3s-CO180s-CO
Breaking operations of rated short circuit breaking current	times	30
Mechanical life	times	10000
Contact automatic closing ability	N	100±40
Force required to hold contact open at full stroke	N	160±50
Circuit resistance at lowest rated contact force	μΩ	≤25
Contact limit erosion	mm	3
Internal gas pressure of vacuum interrupter	Pa	≤1×10^-3
Partial discharge	Pc	≤5

Specifications required for matched switchgear

Parameter item	Unit	Data
Clearance between open contacts	mm	9±1
Average opening speed	m/s	1.05±0.15
Average closing speed	m/s	0.7±0.2
Rated contact pressure	N	3100±200 2500±200
Contact bouncing duration at closing operation	ms	≤3
Closing and opening non-simultaneity of contacts	ms	≤2
Maximum rebound during opening	mm	≤3

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