VYGQ series 12kV Solid Insulated Vacuum Circuit Breaker
- Description
- Specification
- Features
- Size
- Catalogue
VYGQ series 12kV full encapsulation solid insulated vacuum circuit breaker adopts the first full encapsulation structure and the latest solid insulating technology in the world. The embedded pole of VYGQ series are made by special VULCANIZE process to create a cushion between the vacuum interrupter and the epoxy resin, ensuring a high reliability of the embedded poles. The internal structure of embedded pole is isolated from outside environment, not subject to ambient factors such as dust, pollution, moisture and condensation. The embedded poles are free of maintenance. VYGQ series has a strong capacity to adapt to the environment and can run in the adverse conditions.
With high performance, VYGQ series is the first to pass 5000m altitude test in China, which is the highest altitude test for 12kV vacuum circuit breaker at present). VYGQ series has passed a complete set of type tests and meet Class C2-E2-M2 requirements of Chinese National Standard GB1984-2003 and International Standard IEC62271-100, and other relevant standards. It has a full range of ratings and dimensions to meet different demand in industry. It can be integrated into air insulated switchgears (such as KYN28A, KYN96 and KYN61, etc.), universally used in applications such as power plant, substation, petrochemical plants, metallurgical industries, mining, manufacturing industry, airport, subway, seaport and residential areas, etc.
12kV Technical Data
No.
Description
Unit
Parameter
1
Rated voltage
kV
12
2
Rated short time power frequency
withstand voltage (1min)
42
3
Rated lightning impulse withstand voltage (Peak)
75
4
Rated frequency
Hz
50/60
5
Rated current
A
630
1250
630
1250
1600
2000
2500
3150
630
1250
1600
2000
2500
3150
4000
1250
1600
2000
2500
3150
4000
1250
1600
2000
3150
4000
6
Rated short circuit
breaking current
kA
20
25
31.5
40
50
7
Rated short time withstand current
20
25
31.5
40
50
8
Rated peak withstand current
50
63
80
100
125
9
Rated short circuit making current
(peak)
50
63
80
100
125
10
Rated short circuit duration time
s
4
11
Mechanical endurance
Op.
30000/20000
1. The first full encapsulation structure in the world
2. Excellent performance
3. Advanced solid insulating technology
4. Complete type tests
5. Unique spring actuator
6. Advanced manufacture process, accurate test equipment, stringent quality policy
7. Chinese national standards as well as international standards
8. Patented vacuum Interrupter with overall small resistance
VYGQ series 12kV Withdrawable version: rated current up to 1250A
VYGQ series 12kV Withdrawable version: rated current 1600A and above
VYGQ series 12kV fixed version: rated current up to 1250A
VYGQ series 12kV fixed version: rated current 1600A and above
