Basic Info.
Breaking Capacity
High Voltage Circuit Breakers
Speed
High-Speed Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
Certification
ISO9001-2000
Application
Used in 12 Kv Power Systems.
Transport Package
Export Package
Specification
Flexible Configuration
Product Description
Product Description1.Specifications| Distribution Cabinet Width/Phase Spacing | Specifications & Model | Structural
Type |
Optional Ratings
Current (A) | Fixed/
Withdrawable Form |
800mm
/210mm | 630 |
| 1250 |
| 1600 |
1000mm
/275mm | 1600 |
| 2000 |
| 2500 |
| 3150 |
| 4000 |
2.Features
1)The circuit breaker satisfies requirements of M2 level, E2 level (274 times) and C2 level
2)Highly Reliable Modular Spring Operating Mechanism
3)Good Insulation Property ( the embedded poles structure)4)Good Breaking Buffer Performance(guided variable damping oil buffer with a tapered piston )
5)Flexible Configuration6)Reliable Anti-maloperation Interlocking3.Main Technical Data| S/N | Item | Unit | Values |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated short-duration power frequency withstand voltage (1min) | 42 |
| 3 | Rated lightning impulse withstand voltage (peak) | 75 |
| 4 | Rated frequency | Hz | 50 |
| 5 | Rated current | A | 630~4000 |
| 6 | Rated short-circuit breaking current | kA | 20, 25, 31.5, 40 |
| 7 | Rated short-time withstand current | kA | 20, 25, 31.5, 40 |
| 8 | Rated short-circuit duration | s | 4 |
| 9 | Rated peak withstand current | kA | 50, 63, 80, 100 |
| 10 | Rated short-circuit making current | kA | 50, 63, 80, 100 |
| 11 | Power frequency withstand voltage of secondary circuit (1min) | V | 2000 |
| 12 | Opening time (rated voltage) | ms | 20~50 |
| 13 | Closing time (rated voltage) | ms | 35~70 |
| 14 | Mechanical life | times | 20000 (M2 level) |
| 15 | Electric life | / | Class E2 |
| 16 | Gross wear thickness allowed for the moving and fixed contacts | mm | 3 |
| 17 | Rated closing and opening operating voltage | V | AC 220 DC 110/220 |
| 18 | Rated voltage of charging motor | V | AC 220 DC 110/220 |
| 19 | Rated power of charging motor | W | 80 |
| 20 | Charging time | s | ≤15 |
| 21 | Clearance between open contacts | mm | 9±1 |
| 22 | Overtravel | mm | 3.1±0.3(≤31.5 kA)
3.5±0.5(40 kA) |
| 23 | Contact closing bounce time | ms | ≤2 |
| 24 | Asynchronization for opening and closing of three phases | ms | ≤2 |
| 25 | Rated operating sequence | / | Off -0.3s-on/off-180s-on/off |
| 26 | Rated breaking current of a single/back-to-back capacitor | A | 630/400 |
2)
Alternative route of the Yellow River-crossing project in South-to-North water diversion;3)
Three Gorges project;4)
CCTV new site substation project.
Address:
1298 Xuji Avenue, Xuchang, Henan
Business Type:
Manufacturer/Factory
Business Range:
Apparel & Accessories, Consumer Electronics, Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters
Management System Certification:
ISO 9001
Company Introduction:
XJ Group Corporation is a large national enterprise. It ranks among Top 500 of China Enterprise and China Machinery Top 100. Our company is engaged in the research and production of power system automation, relay protection and control equipment, and provides all the related products and services of secondary and primary equipment of power system.
