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Technology of Electrical Automatic

SCM-PDS3 AA TEV UHF Wired Three-in-one Partial Discharge Sensor

SCM-PDS3 AA TEV UHF Wired Three-in-one Partial Discharge Sensor

SCM-PDS3 partial discharge sensor integrates three detection technologies: ultrasonic (AA), transient earth voltage (TEV), and ultra-high frequency (UHF), providing a comprehensive solution for partial discharge activity monitoring in medium and high voltage equipment, including transformers, high-voltage switchgear, and cable joints. The PDS3 is highly portable, has fast measurement capabilities, and excellent anti-interference performance, making it ideal for equipment condition monitoring and diagnostic applications under various field conditions.

SCM-PDS3 partial discharge sensor integrates three detection technologies: ultrasonic (AA), transient earth voltage (TEV), and ultra-high frequency (UHF), providing a comprehensive solution for partial discharge activity monitoring in medium and high voltage equipment, including transformers, high-voltage switchgear, and cable joints. The PDS3 is highly portable, has fast measurement capabilities, and excellent anti-interference performance, making it ideal for equipment condition monitoring and diagnostic applications under various field conditions.

Feature

  • Rugged, compact design;
  • Non-intrusive detection method;
  • Strong magnets to attach sensor;
  • Rapid detection of partial discharge conditions;
  • Suitable for extreme environment, outdoor substation;
  • Measures PD in high-frequency UHF range;
  • Ensures sensitive PD measurements in noisy environments;
  • RS485, Modbus-RTU, SCADA systems.

Specification

Sensor common  
Power supply 24VDC
Static power consumption <10mW
Installation method 4* strong magnet, wall mount
Sampling period 1S
Communication RS485/ Modbus RTU
Dimension 134mm*100*42mm
Operating temperature -40~85°C
Ultrasonic sensor (AA)
Detect range 0 ~ 60dBμV
Pass band Center frequency 40 kHz ±1 kHz
TEV sensor
Detect range 0~60dBmV
Pass band 3~100MHz
UHF sensor
Detect range -70~10dBm
Pass band 300~1500MHz
Average effective height ≥10mm
Environmental sensors 
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

Application

  • Substations, switchgear, transformers;
  • Large-scale power generation facilities;
  • Photovoltaic inverters, collector lines;
  • Key motors, power distribution systems;
  • UPS systems, key distribution cabinets, bus ducts;

Detection principle

AA detection

TEV detection

UHF

 

 

Dimension

Dimension of PDS3

Download

SCM-PDS3-User manua-V1.11