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12kV Vacuum Interrupter with High Breaking

Model:
TD-12/1250-31.5W
Brand:
Kaisaier
Code:
1218

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Product Description

Introducing the TD-12/1250-31.5 Vacuum Arc Extinguishing Chamber - the ideal solution for protecting your equipment and ensuring efficient circuit interruption. With a maximum short-circuit current breaking capacity of 40kA, this vacuum chamber guarantees the safety of your line's devices, preventing any potential damage. Not only does it effectively interrupt and extinguish arcs, but it also prioritizes safety and environmental friendliness. The TD-12/1250-31.5 requires zero maintenance, providing you with a hassle-free experience. Invest in this professional-grade vacuum arc extinguishing chamber and safeguard your equipment while promoting a secure and eco-conscious working environment.

Key features:

Size: Φ80 mm*207 mm

Rated Frequency: 50 Hz

Rated Voltage: 12 kV

Rated Current: 1250 A

Rated Short-circuit Breaking Current: 31.5 kA

Lighting Impulse Withstand Voltage (Peak): 85 kV

1218-2 1218-3 1218-4

Mv Switchgear Component high breaking capacity Vacuum Interrupter compact design high breaking vacuum interrupter vacuum arc extinguished chamber

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MAIN TECHNICAL DATA		TYPE
		TD-12/1250-31.5W
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	31.5
Rated Short-time Withstand Current	kA	31.5
Rated Peak Withstand Current	kA	80
Rated Short-circuit Making Current	kA	80
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	≤ 15
MECHANICAL DATA
Contact Close Force Due to Bellows and Atmosphere	N	90 ± 40
Counter Force of Contact at Full Stroke	N	180 ± 40
Mass OF Moving Parts	kg	1.0
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	3000⁺³⁰⁰₀
Added External Contact Force at Contact Touch Point	N	2100⁺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-12/1250-31.5W
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	31.5
Rated Short-time Withstand Current	kA	31.5
Rated Peak Withstand Current	kA	80
Rated Short-circuit Making Current	kA	80
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	≤ 15
MECHANICAL DATA
Contact Close Force Due to Bellows and Atmosphere	N	90 ± 40
Counter Force of Contact at Full Stroke	N	180 ± 40
Mass OF Moving Parts	kg	1.0
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	3000⁺³⁰⁰₀
Added External Contact Force at Contact Touch Point	N	2100⁺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 Interrupter with High Breaking

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