The SCM- TP1000 is an integrated monitoring device combining partial discharge (PD) detection and wireless temperature sensing, developed for medium and high voltage switchgear. It provides real-time monitoring of switchgear partial discharge, ambient temperature/ humidity/ noise and busbar thermal conditions to enhance equipment reliability and safety. High-precision sensors and advanced algorithms ensure accurate detection of PD events and busbar temperature anomalies, with support for historical data logging, fault SOE records, and waveform analysis.
Its modular design supports two display modes: by switchgear or by sensor group. Built-in alarm logic and relay output allow flexible deployment. RS485 with Modbus RTU protocol enables reliable long-distance communication and seamless SCADA integration.
The SCM- TP1000 is an integrated monitoring device combining partial discharge (PD) detection and wireless temperature sensing, developed for medium and high voltage switchgear. It provides real-time monitoring of switchgear partial discharge, ambient temperature/ humidity/ noise and busbar thermal conditions to enhance equipment reliability and safety. High-precision sensors and advanced algorithms ensure accurate detection of PD events and busbar temperature anomalies, with support for historical data logging, fault SOE records, and waveform analysis.
Its modular design supports two display modes: by switchgear or by sensor group. Built-in alarm logic and relay output allow flexible deployment. RS485 with Modbus RTU protocol enables reliable long-distance communication and seamless SCADA integration.
| HMI electrical specification | |
| Auxiliary power | 85-265Vac/dc, optional 20-60Vdc, 45-65Hz |
| Power consumption | Max<6W |
| Communication | RS-485, MODBUS-RTU |
| Digital output | 2* relay for alarm/trip, 5A@250VAC, passive node |
| Dimensions (W × H × D) | 144*144*100mm |
| Open install hole | 138*138mm |
| Working environment | -10 ~ +60°C; 20% ~ 95% RH (No condensation) |
Temperature related parameters
| Receiver of Temperature data | |
| Power supply | 5VDC |
| Wireless communication frequency | 433MHZ |
| Wireless temperature sensor unit | Standard type 3-12 |
| Sampling period | 5min |
| Distance of receiver and HMI | Up to 80m (260 feet) |
| Wireless temperature sensor | |
| Temperature monitor range | 0°C ~ 99°C, Accuracy ±1°C |
| Transmit power | Less than 10mW |
| Power supply | Battery powered, 1200mAh for 2-4 years |
| Working environment | -10°C ~ +60°C; 20%~95% RH (No condensation) |
| Storage environment | -25°C ~ +70°C; 20%~95%RH (No condensation) |
PD related parameters
| Wired PD sensor | |
| Power supply | 12VDC |
| Static power consumption | <10mW |
| Installation method | 4* strong magnet, wall mount |
| Sampling period | 5s |
| Communication | RS485/ Modbus RTU |
| Dimension | 134mm*100*42mm |
| Operating temperature | -40~85°C |
| Receiver of PD data | |
| Power supply | 5VDC |
| Networking mode | LORA self-organizing network |
| Uplink communication protocol | RS485/Modbus-RTU |
| Distance of receiver and HMI | Up to 80m (260 foot) |
| Wireless PD sensor | |
| Power supply | 7.2V 3000mAh build in battery* |
| Wireless band | 433MHz ~2.4GHz optional |
| Signal transmission distance | Up to 80m (260 feet) |
| Static power consumption | <10mW |
| Installation method | 4* strong magnet, wall mount |
| Sampling period | 2 hours |
| Data upload cycle | 2 hours |
Wired and wireless PD sensor common parameters
| Ultrasonic data (AA) | |
| Detect range | 0 ~ 60dBμV |
| Pass band | Center frequency 40 kHz ±1 kHz |
| TEV data | |
| Detect range | 0~60dBmV |
| Pass band | 3~100MHz |
| UHF data | |
| Detect range | -70~10dBm |
| Pass band | 300~1500MHz |
| Average effective height | ≥10mm |
| Switchgear ambient data | |
| Noise detection range | 30~80dB (Class C) |
| Temp. measurement range | -40~85°C; Accuracy±0.5°C |
| Humidity measurement range | 5~95%RH; Accuracy ±2%RH |
-. Wired PD sensor optional model: default SCM-PDS3
 |
-. SCM-PDS2: Any two of AA/TEV/UHF can be selected
-. SCM-PDS3: AA / TEV / UHF Three-in-one PD sensor |
-. Wireless PD sensor data transmission via LoRa
 |
-. SCM-PDS2W: Any two of AA/TEV/UHF can be selected
-. SCM-PDS3W: AA / TEV / UHF Three-in-one PD sensor |
Temp sensor optional model: default SCM-BAT-S
 |
SCM-BAT-S Remote wireless node
-. Battery powered, 1200mAh for 2~4 years -. Green/Yellow/Red for three phases -. Suitable for flat surfaces or VCB contacts (test under 2min data transmit interval) |
 |
SCM-SAW-S Remote wireless node
-. 0-65℃, accuracy 0.5℃ -. Maintenance free during life cycle -. Suitable for flat surfaces or VCB contacts |
 |
SCM-SAW-W Remote wireless node
-. Surface acoustic wave (SAW) -. Maintenance free during life cycle -. External wiring probe for irregular surface |
HMI dimension:
PD / Temperature wireless data receiver dimension:
Wired/ wireless PD Sensor dimension:
