La description
The AR-3S-33 series circuit reclosers are recently-developed pole-mounted intelligent vacuum circuit reclosers of a new generation, which absorb the advanced domestic and foreign technologies adopted by our company. It is intelligent, energy-saving, environmentally-friendly and maintenance-free.
This product integrates such functions as control, protection, measurement, fault positioning, online monitoring and synchronous closing. With full functions and high digitalized and intelligent degree, it is a best choice for power distribution equipment network automation and intellectualization process.
This product conforms to IEC60044-1, IEC60060, IEC60068-2, IEC60099-4, IEC60255-27, IEC60270, IEC60280.1, IEC60529, IEC60694, IEC60815-1, IEC60870-5-101, IEC61000-4, IEC61243-5, IEC62271, standards, etc.
Major Technical Parameters are shown below:
| Tension nominale | kV | 33 |
| Courant nominal | UN | 800/1250 |
| Rated frequency | Hz | 50 |
| 1min power frequency withstand voltage (to earth/open contacts) | kV | 70 |
| Rated lightning impulse withstand voltage (to earth/open contacts) | kV | 170 |
| Rated short circuit break current | kA | 12.5/16 |
| Rated short circuit making current (peak) | kA | 25/31.5 |
| Thermal stable current(4s) | kA | 25/31.5 |
| Rated short circuit current break time | Time | 20 |
| Closing time | ms | ≤100 |
| Opening time | ms | ≤70 |
| Average open speed | m/s | 1.3~1.8 |
| Average close speed | m/s | 1.0~1.7 |
| Mechanical time | Time | 10000 |
| Rated operation sequence of circuit breaker | O-t1-CO-t2-CO-t2-CO-lockout* | |
| Current transformer ratio | Facultatif | |
| Accuracy degree | Facultatif | |
| Shell protection degree | IP64 | |
| Masse | kg | 140 |
* – time can be adjustable. t1: 0.1-0.3s, t2: 1-3s
Our advantages:
1. Most parts are manufactured ourselves, aimer: frame, cabinet, permanent magnet mechanism, insulation part, control panel, etc. That means the process quality control is effectively controlled.
2. Adopt fast algorithm with patent technology (patent number: ZL200720037710.7) so as to obtain fast breaking capacity of circuit breaker. As a result, it can isolate fault circuit rapidly. It takes less than 25ms from inspecting fault to cut fault circuit by separate circuit breaker. It can avoid the problem of override trip effectively.
3. Adopt single phase earthing protection system with patent technology (patent number: ZL201020178325.6). It can realize on-line judgment to single phase earthing fault of low current earthing system without adding device. Releases warning or tripping action according to setting value
Our service:
1. Pre-sale technical support, training;
2. On-site factory inspection is accepted;
3. Open atitude for cooperation;
4. Punctual goods delivery;
5. After-sale technical support and service.
