中文
Manager Zhou
Leave a message
Product Overview
The C-GIS inflatable cabinet three position vacuum circuit breaker is a switchgear used in 12KV, 24KV, and 40.5kV power systems, serving as a control and protection unit for electrical facilities in industrial and mining enterprises, power plants, and substations. Due to the nature of Vacuum Circuit Breakers, they are particularly suitable for frequent operations that require a rated working current, or for places where short-circuit currents are broken multiple times. This circuit breaker complies with the requirements of GB/T1984-2014 "High Voltage AC Circuit breakers", JB/T3855-2008 "3.6-40.5KV Indoor AC High voltage vacuum circuit breakers", DL/T403-2000 "Technical Conditions for Ordering 12KV-40.5KV High Voltage Vacuum Circuit Breakers", and meets the closing requirements of FC622710100:2008. The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker.
Technical Parameter
| Item | Unit | Data |
| rated voltage | kV | 12/24/40.5 |
| Rated frequency | Hz | 50 |
| Rated 1-minute power frequency withstand voltage (phase to phase, ground to ground, port) | kV | 42/65/95 |
| Rated lightning impulse withstand voltage (phase to phase, ground to ground, port) | kV | 75/118/125 |
| Rated operating sequence | O-0.3S-CO-180S-CO |
| Item | Unit | Circuit breaker model | |||||||||
| C-GIS | |||||||||||
| Rated current | A | 630 | 1250 | 1250 | 1600 | 2000 | 2500 | 1250 | 1600 | 2000 | 2500 |
| Rated short circuit breaking current | kA | 20/25 | 31.5 | 40 | |||||||
| Rated short-circuit closing current (peak) | kA | 50/63 | 80 | 100 | |||||||
| Rated continuous short-circuit time | s | 4 | 4 | 4 | |||||||
| Rated short-circuit current breaking times | times | 30 | 30 | 30 | |||||||
| mechanical life | times | 10000 | 10000 | 10000 | |||||||
Mechanical characteristic parameters of circuit breaker
| name | Unit | Data | ||
| Contact opening distance | mm | 12kV/9±1;24kV/13±1;40.5kV/18±1 | ||
| Overtravel | 3.5±0.5 | |||
| Three phase opening and closing at different stages | ms | ≤2 | ||
| Bouncing time of closing contact | ms | 12kV/ ≤ 2; 24kV/ ≤ 2; 40.5kV/≤3 | ||
| Contact pressure of closing contact | N | 20kA | 25kA | 31.5kA |
| 2000±200 | 2400±200 | 3100±200 | ||
| Average opening speed | m/s | 12kV/0.9~1.3; 24kV/1.1~1.6;40.5kV/1.8±0.2 | ||
| Average closing speed | 12kV/0.4~0.8; 24kV/0.6~1.0;40.5kV/0.8±0.2 | |||
RELATED
RELATED
RELATED
RELATED
Oil&Gas exploited
Automotive Manufacturing
Transportation & Dlistrlbutlon
Manufacture
Industrial Construction
Green Energy
Copyright ? 2024 All Rights Reserved
Back to top 
Comment
（0）