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According to the actual situation of ampere second characteristic test of DC protection appliances, GDZX has launched a ZXAS-1000A DC circuit breaker tester which is suitable for on-site use in substations, easy to carry and high degree of automation. It can provide the operation and maintenance department with a means to test the action characteristics of DC protection appliances and verify the action characteristics and differential coordination of DC protection appliances, In order to improve the reliability of DC system operation and ensure the safe and reliable operation of power grid.
Technical Indicators
| 1. Power supply | AC220V±10%, 50Hz±0.5Hz |
| 2. Testing current range | 0-1000A |
| 3. Testing current ripple coefficient | <5%<> |
| 4. Stability of output current | ≤0.5% |
| 5. Time | 0-9999s; Time resolution(min.): 0.001s |
| 6. Environmental temperature | -20--50ºC. |
| 7. Size | 470*320*460mm |
| 8. Weight | 35kg |
1. The instrument can be used separately or linked to PC.
2. 320*240 LCD screen, thermal printer, interactive keyboard operation, and intelligent operation system.
3. Power electronics controlling technique has been adopted to output high current, with high speed, high precision and continuous adjustability.
4. Current range can be automatically switched by multiple high precision sensors.14 digit AD acquisition chip of high capacity.
5. Automatic data storage. Be capable of saving 200 testing results, which will not lose in power failure.
6. Two options: ampere-second characteristic test or through current characteristic test.
7. When linking to PC, it is available to do following operations, such as controlling the instrument, data importing, data saving, data report and data graph generation.
8. Protection functions for overheat, over-current and over voltage.
9. Anti-interference capacity and good EMC(electromagnetic compatibility).
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