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12kV vacuum chamber applied for Outdoor Vacuum Circuit Breaker

Reliable and efficient solution for 12kV outdoor VCBs. With its compact size of Φ70 mm*235 mm, it offers optimal space utilization.

Model:
TD-12/1250-20B2
Brand:
Kaisaier
Code:
1031D

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Product Description

Built to withstand the rigors of outdoor environments, this 12kV Outdoor Vacuum Interrupter is engineered with robust materials and precision craftsmanship. It ensures exceptional performance even in harsh weather conditions, ensuring consistent operation when you need it most. It seamlessly integrates with the ZW43 series, enhancing its efficiency and dependability. With its precise design and compatibility, you can trust that your electrical systems are in safe hands.

Key features:

Size: Φ70 mm*235 mm

Rated Frequency: 50Hz

Rated Voltage: 12kV

Rated Current: 1250A

Rated Short-circuit Breaking Current: 20kA

Lighting Impulse Withstand Voltage (Peak): 85kV

1031D-2N 1031D-7 1031D-3 1031D-4

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MAIN TECHNICAL DATA		TYPE
		TD-12/1250-20B2
VOLTAGE RATINGS AT RATED CONTACT STROKE
Rated Frequency	HZ	50
Rated Voltage	kV	12
Short-time(1min)Power-frequency Withstand Voltage	kV	30/48*
Lighting Impulse Withstand Voltage(Peak)	kV	85*
CURRENT RATINGS
Rated Current	A	1250
Rated Short-circuit Breaking Current	kA	20
Rated Short-time Withstand Current	kA	20
Rated Peak Withstand Current	kA	50
Rated Short-circuit Making Current	kA	50
Rated Single Capacitor Bank Breaking Current	A	630★
Rated Back-to-back Capacitor Bank Breaking Current	A	400★
Rated Duration of Short-circuit	s	4
Circuit Resistance at Min. Rated Contact Force	μΩ	≤ 17
MECHANICAL DATA
Contact Close Force Due to Bellows and Atmosphere	N	75 ± 35
Counter Force of Contact at Full Stroke	N	130 ± 40
Mass OF Moving Parts	kg	0.8
LIFE
Mechanical Endurance	Times	10000
Contact Limit Erosion	mm	3
Switching Operations of Rated Short-circuit Breaking Current	Times	30
Shelf Life	Years	20
Internal Gas Pressure	Pa	＜1.33 × 10-3
RATED OPERATING SEQUENCE		O-0.3s-CO-180s-CO
MECHANICAL DATA OF VACUUM SWITCH EQUIPPED WITH THE INTERRUPTERS
Average Opening Speed(first 6mm）	m/s	1.1 ± 0.2
Average Closing Speed(last 6mm)	m/s	0.6 ± 0.2
Contact Bounce Duration at Closing Operation	ms	≤ 2
Clearance Between Open Contacts	mm	9 ± 1
Out of Simultaneity of Contact Closing and Opening	ms	≤ 1
Rated Contact Pressure	N	1800⁺²⁰⁰₀
Added External Contact Force at Contact Touch Point	N	1300⁺²⁰⁰₀
Maximum Rebound During Opening	mm	≤ 2
Note 1:Meets or exceeds the electrical endurance requirements of calss E2 per IEC 62271-100 and GB 1984-2014. Note 2:"*"Rated insulation values require external insulation, such as SF6,transformer oil or solid dielectric material etc. Note 3:"★"Rated characteristics to be given on request. Note 4:The movable stem of the VI could only suffering no more than 45Nm twisting force and in order not to damage the metal bellows, the movable stem should be prevented from rotation when assembling. For more requirements please check the instructions of Usage.

MAIN TECHNICAL DATA		TYPE
		TD-12/1250-20B2
VOLTAGE RATINGS AT RATED CONTACT STROKE
Rated Frequency	HZ	50
Rated Voltage	kV	12
Short-time(1min)Power-frequency Withstand Voltage	kV	30/48*
Lighting Impulse Withstand Voltage(Peak)	kV	85*
CURRENT RATINGS
Rated Current	A	1250
Rated Short-circuit Breaking Current	kA	20
Rated Short-time Withstand Current	kA	20
Rated Peak Withstand Current	kA	50
Rated Short-circuit Making Current	kA	50
Rated Single Capacitor Bank Breaking Current	A	630★
Rated Back-to-back Capacitor Bank Breaking Current	A	400★
Rated Duration of Short-circuit	s	4
Circuit Resistance at Min. Rated Contact Force	μΩ	≤ 17
MECHANICAL DATA
Contact Close Force Due to Bellows and Atmosphere	N	75 ± 35
Counter Force of Contact at Full Stroke	N	130 ± 40
Mass OF Moving Parts	kg	0.8
LIFE
Mechanical Endurance	Times	10000
Contact Limit Erosion	mm	3
Switching Operations of Rated Short-circuit Breaking Current	Times	30
Shelf Life	Years	20
Internal Gas Pressure	Pa	＜1.33 × 10-3
RATED OPERATING SEQUENCE		O-0.3s-CO-180s-CO
MECHANICAL DATA OF VACUUM SWITCH EQUIPPED WITH THE INTERRUPTERS
Average Opening Speed(first 6mm）	m/s	1.1 ± 0.2
Average Closing Speed(last 6mm)	m/s	0.6 ± 0.2
Contact Bounce Duration at Closing Operation	ms	≤ 2
Clearance Between Open Contacts	mm	9 ± 1
Out of Simultaneity of Contact Closing and Opening	ms	≤ 1
Rated Contact Pressure	N	1800⁺²⁰⁰₀
Added External Contact Force at Contact Touch Point	N	1300⁺²⁰⁰₀
Maximum Rebound During Opening	mm	≤ 2
Note 1:Meets or exceeds the electrical endurance requirements of calss E2 per IEC 62271-100 and GB 1984-2014. Note 2:"*"Rated insulation values require external insulation, such as SF6,transformer oil or solid dielectric material etc. Note 3:"★"Rated characteristics to be given on request. Note 4:The movable stem of the VI could only suffering no more than 45Nm twisting force and in order not to damage the metal bellows, the movable stem should be prevented from rotation when assembling. For more requirements please check the instructions of Usage.

12kV vacuum chamber applied for Outdoor Vacuum Circuit Breaker

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