VIB-24 Indoor Vacuum Circuit Breaker (Embeded poles)

Product Description

VIB-24 Indoor High Voltage Vacuum Circuit Breaker With Embedded Poles

General Description
VIB-24 series of Indoor High Voltage Vacuum Circuit Breaker with embedded poles is three phase A.C.50Hz
power distribution equipment with the rated voltage of 24kV. It's used for protecting and controlling the electrical 
equipment in the fileds of industry & mining enterprise, power plants and substation.

The main conductive circuit of this type vacuum circuit breaker with spring mechanism is embedded pole,
that can greatly improve the reliability of insulation, mechanical and breaking performance,and really realize the 
free-maintance and longer mechanical&electrical life.

This type Vacuum Circuit Breaker conforms to national standards and the stipulations of IEC standard.
The capability reaches grade of M2-E2-C2.
The products is used for many kinds of switchgear like KYN28-24(GZS1)and can be fixed installation.

Applying ambient conditions
1.Ambient temperature:-15ºC~+40ºC.
2.Ambient 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%.
3.Earthquake intensity:not exceed 8 degrees.
4.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.
5.The height above sea level:1000m(besides the special requirements).
6.It should be installed in the places without fire, explosion, serious filth, chemical erosion and violent vibration.

Main technical specification

S.N	Name	Unit	Data
1	Rated voltage	kV	24
2	Rated current	A	630	1250	1600	2000	2500	3150
3	Rated frenquency	Hz	50
4	Rated short circuit breaking current	kA	20		25		31.5
5	Rated short circuit making current	kA	50		63		80
6	Rated short time withstand current	kA	20		25		31.5
7	Rated peak withstand current	kA	50		63		80
8	Rated power frequency withstand voltage	kV	65
9	Rated lightning impulse withstand voltage	kV	125
10	Rated short-circuit duration	s	4
11	Rated operating sequence		O-0.3s-CO-180s-CO
12	DC component		50%
13	Mechanical endurance	Cycle	10000

Overall outline drawing


Following information is required for order
VCB Full type,main technical specification,distance between phase and quantity.
Type and specification of service voltage.
Name and quantity of spare parts.

If you have some questions of the products,pls contact us at any time.

Welcome for enquiry and factory visit!