Technology of Electrical Automatic

SCM-PDS2 AE TEV Two-in-one Partial discharge sensor

SCM-PDS2 AE TEV Two-in-one Partial discharge sensor

The SCM-PDS2 partial discharge sensor integrates ultrasonic and TEV (Transient Earth Voltage) technologies to detect partial discharges in middle-high voltage equipment. PDS2 can monitoring of transformers, high-voltage switchgear, GIS (Gas-Insulated Switchgear), and cable joints. SCM-PDS3W is highly portable, offers fast measurement speeds, and boasts strong anti-interference capabilities, making it suitable for various field applications.

The SCM-PDS2 partial discharge sensor integrates ultrasonic and TEV (Transient Earth Voltage) technologies to detect partial discharges in middle-high voltage equipment. PDS2 can monitoring of transformers, high-voltage switchgear, GIS (Gas-Insulated Switchgear), and cable joints. SCM-PDS3W is highly portable, offers fast measurement speeds, and boasts strong anti-interference capabilities, making it suitable for various field applications.

Feature

  • Rugged, compact design;
  • Non-intrusive detection method;
  • Transient overvoltage protected;
  • Strong magnets to attach sensor;
  • RS485, Modbus-RTU, SCADA systems;
  • Rapid detection of partial discharge conditions;
  • Customizable according to customer needs;
  • Suitable for online or offline PD measurements.

Specification

Sensor common
Power supply 12VDC
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 4S
TEV sensor
Detect range 0~60 dBmV
Pass band 3~100MHz
Resolution / Accuracy 1dBmV / ±1dBmV
Ultrasonic sensor
Detect range -7dBμV ~ 68dBμV
Resolution / Accuracy 1dBμV
Sensitivity -65 dB (0 dB=1 volt/μbar rms SPL)
Sensor center frequency 40 KHz

Application

  • Factory and on-site testing;
  • Power transformers;
  • Medium and high pressure connections;
  • Power coils, motors;
  • Gas-insulated integrated circuits (GIS);
  • Industrial motor equipment;
  • High pressure components: sleeves, insulators, containers, coil terminations, bus wires.

Detection principle

TEV detection

 

AE detection

Download

SCM-PDS2-User manual-V1.10