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Indoor High Voltage Vacuum Circuit Breaker

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Payment Type:

L/C,T/T

Min. Order:

1 Unit

Transportation:

Ocean,Land

Port:

Shanghai,Ningbo

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Product Description

Product Attributes
Supply Ability & Additional Information
Packaging & Delivery

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Overview

Product Attributes

Brand: TRANCHART

Supply Ability & Additional Information

Transportation: Ocean,Land

Place of Origin: Changzhou

Port: Shanghai,Ningbo

Payment Type: L/C,T/T

Packaging & Delivery

Selling Units:: Unit

Indoor High Voltage Vacuum Circuit Breaker

TNVT-12(Vs1-12 )indoor high voltage vacuum Circuit Breaker is the indoor switching equipment of three-phase AC 50Hz rated voltage 12kV power system. As the protection and control unit of power equipment of power grid, industrial and mining enterprises, vS1-12 indoor high voltage vacuum circuit breaker is suitable for frequency soft operation under rated working current, or the place with multi-cross breaking short circuit current.

The circuit breaker adopts operating mechanism and circuit breaker body integrated design, can be equipped with special propulsion mechanism. Constitute the role of handcart unit.

Advantages

*Adopt the most advanced and effetive arc extinguishing principle, has strong breaking capability and long service life;

*Reasonable layout of the circuit and operating mechanism, integrated, modular design makes the structure more compact;

*Reliable interlock function will prevent various kinds of misoperation effectively.

Using the environment

● Air temperature: upper limit +40℃ lower limit -15℃;

● Sea dial height :≤1000m(if the altitude needs to increase, the rated insulation level will be increased accordingly);

● Earthquake intensity: not more than 8 degrees;

● The daily average relative humidity shall not be greater than 95%, and the monthly average shall not be greater than 90%.

Installation place: no fire, explosion danger, serious pollution, chemical corrosion and violent vibration place.

Parameters

No.	Item	Unit	Parameters
1	Rated Voltage	kV	12
2	Rated Short-time (1min) Power Frequency Withstand Voltage		42(Phase to phase, Phase to earth) 48(Insulation Distance)
3	Rated Lightning Impulse Withstand Voltage (Peak)		75(Phase to phase, Phase to earth 85(Insulation Distance)
4	Rated Frequency	Hz	50/60
5	Rated Current	A	630 1250	630 1250 1600 2000 2500 3150	1250 1600 2000 2500 3150 4000		1600 2000 2500 3150 4000
6	Rated Short-circuit Breaking Current	kA	20/25	31.5	40		50
7	Rated Short-time Withstand Current	kA	20/25	31.5	40		50
8	Rated Short-circuit Duration	s	4
9	Rated Peak Withstand Current	kA	50/63	80		100	125
10	Rated Short-circuit Making Current	kA	50/63	80		100	125
11	Secondary Circuit Power Frequency Withstand Current (1min)	V	2000
12	Rated Single/ Back to Back Capacitor Bank Breaking Current	A	630/400 (40kA is 800/400)
13	Rated Capacitor Bank Making Flashy Flow	kA	12.5 (Frequency Not More Than 1000Hz)
14	Opening Time(Rated Voltage)	ms	20～50
15	Closing Time (Rated Voltage)	ms	35～70
16	Mechanical Life	Times	30000(50KA is 10000)
18	Rated Short-circuit Current Breaking Times	Times	50(40KA is 30/50KA is 20)
19	Note: forced air cooling is required for 4000A

Product Categories : Circuit Breaker > High-Voltage Vacuum Circuit Breaker

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