VIB-40.5/T Vacuum Circuit Breaker Switch

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: Normal Type Circuit Breaker
• Model NO.: VIB-40.5/T630-25
• Arc-extinguishing Medium: Vacuum
• Installation: Withdrawable
• Structure: MCCB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: VDE, ISO9001-2000, GB1984-2003
• Rated Voltage: 40.5kv
• Rated Frequency: 50Hz
• Transport Package: Each One Is Wrapped with Plastic Film in Cartons.
• Specification: IEC: M2-E2-C2
• Trademark: Longxiang Electric
• Origin: Baoji, Shaanxi China
• HS Code: 85389000
• Production Capacity: 16000sets/Year

Product Description

VIB-40.5/T Series of Indoor High Voltage Vacuum Circuit Breaker With Embedded Poles

General Description
VIB-40.5/T type indoor high voltage vacuum circuit breaker is used for switchgear KYN61-40.5(Z). It's the most new type of power supply and distribution equipment.This product is in accordance with GB1984-2003 standard. 

Structural characteristics
This kind of VCB with adopt integrated design, It's different from open-type and insulsted cylinder type vacuum circuit breaker;
The vacuum interrupter and conductive circuit connectors is encapsulated in the embedded pole through a special process with epoxy resin.
Assembled the circuit breaker with modularized mechanism.

This kind of VCB with excellent electrical & mechanical properties. It represents the advanced level of the vacuum circuit breaker in the modern world.
 
Technical Characteristics 
The design of this kind of VCB take into account the Chinese market and special areas requirements, it makes the vacuum interrupter  and conductive circuits into a pole by the advantage of the solid insulation and advanced technology of APG.

This is not only simplifies  the pole assembly process, to prevent the connecting bolt loosening during operation, but also improve reliability 
and reduce the effect of external mechanical force and environment(such as:dust, humidity, nasty, high sea level, animal),  and avoid VI's  operation lower caused by vacuum interrupter operating in adverse environment, which can lead potentional accident of  VI's surface  flashover as VCB opening, So the pole is free maintenance within the service life of the extrnal insulation.

It's more environment,and represents the advanced level of the vacuum circuit breaker in the modern world.   
 
Applying ambient conditions
Ambient temperature:-15~+40ºC,the average temperature is not more than 35ºC in 24 hours.
The height above sea level:≤1000m
Relative humidity:the average humidity of a day should be no more than 95%;the average humidity of a month should be no more than 90%.
Saturated vapour pressure:the average pressure of a day should be no more than 2.2kPa;the average pressure of a month should be no more than 1.8kPa.
It should be installed in the places without dust, smoke, chemical erosion, combustible gas and saline fume pollution.

VIB-40.5 Mechanical Capacity Specification

S.N	Name	Unit	Data
1	Clearance between open contacts	mm	22±2
2	Contact stroke of contacts	mm	7.5±1.5
3	Allows the thickness of the contact	mm	3
4	Average closing speed	m/s	0.65±0.15
5	Average opening speed	m/s	1.8±0.2
6	Contact bouncing duration at closing operation	ms	≤3
7	Simultaneity of CO operations of three poles	ms	≤2
8	Out of simultaneity of CO operations of three poles	ms	≤2
9	Separating brake rebound amplitude	mm	2
10	Buffer spacing	mm	7

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