Frame Circuit Breaker Model and Specifications
Recommended by Dary Electric
Features:
Equipped with multiple interface resources, including analog signal acquisition, digital input, output pulse signal input, etc. Supports RS485 interface, can be connected to PLC and other devices. Integrated acquisition, transmission, and control improves system reliability and reduces costs. Uses an industrial-grade ultra-low-power, high-performance embedded processor with an industrial clock. Features automatic timed reporting and event-triggered reporting. Built-in memory for automatic data recording and historical data retrieval. This device automatically tracks changes in the system's zero-sequence current. It is suitable for systems with a primary zero-sequence current of 0.5A to 8A, and by replacing the zero-sequence transformer, its adaptability can be expanded to 50A. It has a trip lockout hardware and software structure. After fault handling, the lockout can be remotely released, and then the closing button can be pressed to close and supply power.
Main Functions:
1. Automatic locking of short-circuit faults: When a short-circuit fault occurs, the circuit breaker automatically trips and locks, isolating the fault section to ensure normal power supply to other lines.
2. Automatic removal of single-phase ground faults: When a single-phase ground fault occurs, the circuit breaker automatically trips and locks, and the substation and other feeder lines do not sense the fault.
3. Quick fault location: After a line accident causes the switch protection to operate, only the load side of the switch loses power. The power company dispatches personnel to investigate the cause of the accident. Additionally, according to special user requirements, a GPRS system can be installed to actively report fault information and allow remote operation of the switch for opening and closing actions.
Main Parameters:
|
No. |
Name |
Value |
|
1 |
Rated Voltage |
12KV |
|
2 |
Rated Current |
630A |
|
3 |
Rated Short-Circuit Breaking Current |
20KA |
|
4 |
Rated Peak Withstand Current (Peak) |
50KA |
|
5 |
Rated Short-Time Withstand Current / Duration |
20KA/4S |
|
6 |
Rated Short-Circuit Making Current (Peak) |
50KA |
|
7 |
Zero-Sequence Protection Primary Current Setting Range |
0.5A-40A |
|
8 |
Zero-Sequence Protection Operation Delay Time |
0S-600S |
|
9 |
Remote Control Operation Distance |
100m |
|
10 |
Rated Operating Sequence |
O-0.3S-CO-180S-CO |
|
11 |
Rated Short-Circuit Making Current (Peak) |
50KA |
|
12 |
Rated Short-Time Withstand Current / Duration |
20KA/4S |
|
13 |
Rated Peak Withstand Current (Peak) |
50KA |
|
14 |
Rated Short-Circuit Breaking Current |
20KA |
|
15 |
Rated Current |
630A |
|
16 |
Rated Voltage |
12KV |