Smart Online Monitor
Product introduction:
WJCQ is capable of monitoring and recording 3 phase SPD in real time, as well as RS485 remote communication with substation control center.
It is able to alarm when leakage current exceeds threshold value.
Characteristic:
1/ Sensor is without residual voltage, when replacement and maintenance;
2/ Real time monitor and record, remote communication;
3/ Data could be saved in 10 years when power-off.
| Power supply |
A.C |
85V~260V (47~440Hz) |
| D.C |
110V~360V, nonpolarity |
| Power consumption |
≤2W |
| Operation |
Lower limit current |
30A (8/20μs) |
| Sampling frequency |
≤2/second |
| Memory |
340 times/phase (discharge time) |
| RS485 |
Data format |
1 start bit, 8 data bits, 1 stop bit |
| Baud rate |
19200bps |
| Discharge current 8/20μs |
2/3/'earthing': 1000A |
| Environment |
Temperature |
-10℃~+60℃ |
| Relatively humidity |
≤95% (40℃) |
