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On-line Partial Discharge Monitoring for HV Equipment

PD Test for Transformer, Reactor and Breaker
  • PD-TM500A
  • PD-TM500ATM

    Mountable Type

    On-Line continuous partial discharge monitoring system for Transformers

    Product Description

    The PD-TM Series are non-portable, mounted type units. PD-TM500, 1000, 1500 are online diagnostic systems that continuously monitors partial discharge in equipment for Transformers. This units detect, analyze, and locate the signal source of partial discharge or arcing. This test equipment is mounted on or near the electrical equipment under test, in a weather proof housing. (All PowerPD units include software, which allows accessibility of continuous monitoring from your control room computer, via, remote local LAN)


  • Connects to your system via SCADA
  • Installed on fully loaded and energized electrical equipment, completely non-intrusive, no need for an outage to install
  • Measures AE (acoustic emission) via 4 sensors and electrical discharges via a clamp-on type CT
  • Used on transformers


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