10kV 12kV Medium Voltage Handcart Type VCB With Insulating Tube With Conductive Parts

10kV 12kV Medium Voltage Handcart Type VCB With Insulating Tube With Conductive Parts插图2

10kV 12kV Medium Voltage Handcart Type VCB With Insulating Tube With Conductive Parts插图3

10kV 12kV Medium Voltage Handcart Type VCB With Insulating Tube With Conductive Parts插图4

Model: VSG-12/630-210

describe

VSG vacuum circuit breaker is a new type of indoor switchgear. It is mainly used in three-phase AC power system with rated voltage 12kV and rated frequency 50-60HZ. It has the advantages of compact structure, high reliability, small running vibration and convenient maintenance. It can be widely used in power plants, steel mills, metallurgy, petrochemical, transportation, construction and other industrial and mining enterprises. As a switchgear to protect loads such as high-voltage motors, transformers, and line faults.

Description

Description

General

VSG type indoor high-voltage vacuum circuit breaker is suitable for switching various loads of different nature and frequently operated in the three-phase AC 50Hz, rated voltage 7.2kV-40.5kV power system. And the protection and control of substation electrical equipment. It can be equipped with KYN28A and other central handcart type switch cabinets, and can also be equipped with XGN fixed type switch cabinets.

VSG type indoor high-voltage vacuum circuit breaker complies with the national standard GB1984 “AC high-voltage circuit breaker”, JB/T3855 “3.6 ~ 40.5kV indoor AC high-voltage vacuum circuit breaker” and IEC60056 “high-voltage AC circuit breaker” standard. It meets the ” 10- 35kV Indoor High Voltage Vacuum Circuit Breaker Ordering Specifications”.

environmental conditions

1. The ambient air temperature does not exceed 40°C, and the average value measured within 24 hours does not exceed 35°C.
2. The minimum ambient air temperature for the “-5 indoor” grade is -5°C, the “-15 indoor” grade is -15°C, and the “-25 indoor” grade is -25°C. The “-25 room” level is 15°C, -25°C.
3. The influence of solar radiation is negligible.
4. The altitude does not exceed 1000m.
5. The surrounding air is not heavily polluted by dust, smoke, corrosive and/or flammable gases, vapors or salt spray.

Technical Parameters

No.	thing		unit	data
1	Rated voltage		Voltage	12
2	rated frequency		hertz	50
3	Rated insulation class	1min power frequency withstand voltage	Voltage	42
3	Rated insulation class	Rated lightning impulse withstand voltage	Voltage	75
4	rated current		A	630/1000/1250/1600/2000/2500/3150/4000
5	Rated short-circuit breaking current Rated short-time withstand current (effective value)		K	20/25/31.5/40/50
6	Rated short-circuit making current (peak value) Rated dynamic current (peak value)		K	50/63/80/100/125
7	Rated short-circuit breaking current breaking time		era	30,50
8	Rated thermal stabilization time		S	4
9	Nominal operating sequence			O-0。3s-CO-180s-CO
10	Mechanical life		era	30000
11	Rated breaking current of a single capacitor bank		A	630
12	Breaking current of single rated capacitor bank		A	400
13	Rated back-to-back capacitor bank breaking current		s	4