PD3000 Partial Discharge Monitor provides continuous monitors of partial discharge (PD) in equipment such as transformers, cables in switchgear and rotating machines, etc. You can call this monitor partial discharge monitoring switchgear too.

It analyzes RF emissions in the HF, VHF, and lower UHF ranges by sensors outside the cabinet. HMI unit provides site display of TEV amplitude and ultrasonic amplitude. DO port can drive local alarms and multi-level alarm notice site engineer. The partial discharge monitor also can communicate data and notifications across standard RS485 Modbus interface to networked supervisory systems.

Specification

HMI electrical parameters of PD monitoring for switchgear:

Auxiliary Power 85-265Vac/dc
20-60Vdc Optional
Power consumption <6W
Communication RS-485, MODBUS-RTU
Digital output 2* NC & NO, passive node
Enviorment temperature -10 ~ +60°C
Environment humidity RH 20% ~ 95% (No condensation)
Dimensions (L × W × H) 144*144*100mm
Open install hole 138*138mm

Remote sensor common:

Power supply 12Vdc or 2000mAh 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

TEV sensor:

Detect range 0~60 dBmV
HF Frequency Response 3~100MHz
Resolution / Accuracy 1dBmV / ±1dBmV

Ultrasound sensor:

Detect range -7dBμV ~ 68dBμV
Resolution / Accuracy 1dB / ±1dB
Sensitivity -65 dB (0 dB=1 volt/μbar rms SPL)
Sensor Center Frequency 40 kHz