1.14kv, 3.6kv, 7.2kv, 12kv, high voltage AC, DC contactor Vacuum Interrupter

Product Overview

Description

ZKTJ630/12-6.3 Vacuum Interrupter for Contactor

 

JCZ5 CKG ZKTJ250/12-2.5

JCZ5 CKG ZKTJ400/12-4

JCZ5 CKG  ZKTJ630/12-6.3

 

Why to choose Feite?

 

Products and technology of our company
Our company has developed 1.14kv-40.5kv vacuum switch tubes of more than 100 types, which can be widely used for various vacuum circuit breakers, contactors and load break switches.

 

Component and material supply
1.Metalized ceramic: The density is much higher than injection molding, so the welding ability is great.
2.Contact terminal: High quality imported CuCr25, CuW
3.Bellows: 316L Stainless steel, easy-welding and environmental friendly, which is much better than common 304 and 321.

Production control and technical innovation
1. The production procession has adopted advanced control technology, to eliminate discrete and ensure consistency of product quality and improve product qualified rate.
2. Each batch of bellows can only be put into production after passing 10 million times of life test after mechanical forming. Also, metalized ceramic are 100% non-leakage required during the air tightness test and the seal strength is over 5000N.
3. Oxygen-free copper ring transition in sealing structure has solved problems such as low seal intensity and tube easy-breaking, so that the product life is greatly enhanced.
4. Free painting technology: Current domestic product with spray paint on the stainless steel surface will cause a certain degree of pollution. To solve this problem, we use special microelements solder materials to prevent it from dispersed around product surface, which is natural, beauty and environmental friendly.
5. Once Seal-Exhaust Technique: All the components will be assembled in the Once Seal-Exhaust furnace in one time. Thus, production process has been optimized .Also, duplication and pollution can be avoided effectively. This technique has filled our domestic blank.

1) Main Technical Data

 

Main Technical Specification	Unit	Specification
Rated voltage	kV	12
Rated current	A	250/400/630
Rated frenquency	Hz	50
Rated short-time power frequency withstand voltage(1min)	kV	42
Rated lightning impulse withstand voltage	kV	75
Rated making current	kA	2.5/4.0/6.3
Rated breaking current,Max	kA	2.0/3.2/5.0
Rated breaking current,Min	A	50/80/125
Rated making current,limit	kA	2.5/4.0/6.3
Rated short-time withstand current	kA	2.5/4.0/6.3
Rated duration of short-circuit	S	4
Mechanical life	Times	30*104
Electricity life AC-3	Times	30*104
Electricity life AC-4	Times	10*104
Rated contact stroke		6±1
Contact closing force due to bellows and atmosphere	N	70±30
Counterforce at rated contact stroke	N	110±40
Circuit resistance at rated contact force	μΩ	≤55
Shelf life	Years	20
Contact erosion limit	mm	3
Weight of moving parts	Kg	≤0.4

 

2) Mechanical Data Required For Matched Vacuum Switchgear

 

Main Technical Specification	Unit	Specification
Rated contact stroke	mm	110±10
Average opening speed	m/s	0.6±0.2
Average closing speed	m/s	0.3±0.1
Contact bouncing duration at closing operation	ms	≤2
Contact bouncing bank amplitude of opening operation	mm	≤2
Three-pole simultaneity	ms	≤1

 

3) Outline Dimension

 

 

 

 

 

The Brazing Chamber:

 

 

 

Testing Room:

 

 

 

Package:

 

 

 

 

 

 

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