The APD series high-voltage switchgear partial discharge monitoring device detects the electromagnetic wave radiation generated along with partial discharge and automatically determines the actual detection frequency of on-site partial discharge. Then, data such as the number and frequency of partial discharge detected are uploaded to the server.
Type Parameters | APD100 | APD200 |
| Number of channels | One | One |
| Measuring range | -60dBm~+10dBm | -60dBm~+10dBm |
| Measurement content | Discharge amplitude and frequency | Discharge amplitude and frequency PRPD,PRPS |
| Phase synchronization | Internal synchronization(AC power) | |
| Discharge type recognition | Free metal particle discharge, suspended potential discharge, insulation air gap discharge/pollution discharge, corona discharge | |
| Connecting cables | Coaxial cable | |
| Matching impedance | 50Ω | |
| Power supply | DC10~30V | AC/DC220V、AC/DC110V |
| Power dissipation | ≤3W | |
| Communication interface | RS485 * 1、Lora * 1 | RS485 * 1、USB-C * 1 |
| Baud rate | 2400、4800、9600、19200 （RS485） | 9600、115200（RS485） |
| Communication protocol | MODBUS-RTU（RS485） | To be used in conjunction with partial discharge analysis software |
| Relay output | 1 circuit normally open relay | |
| Installation | 35mm guide rail installation | |
| Usage environment | Temperature: -25 ℃~+70 ℃; Relative humidity ≤ 95% | |
Application scenario: Suitable for integrated installation of medium voltage switchgear (61 cabinets, 28 cabinets, ring main unit) before leaving the factory or for power-off installation of high-voltage switchgear that has already been put into use.
Product features: The system has strong anti-interference ability and high reliability.
Monitoring content: discharge frequency, discharge capacity, PRPD/PRPS map, etc.
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