Partial discharge monitor HV Diagnostics AG

The PD monitoring system PD GUARD is especially developed for continuous partial discharge monitoring of high voltage equipment, like generators, motors and power transformers in the conventional frequency range.

Applications
PERMANENT and PERIODIC ON-line Monitoring on HV Apparatus such as; Transformers and Generators.
PERMANENT and PERIODIC On-line Monitoring on HV Cable joints and Cable terminations.
Measurements are made according to international standards (IEC 60270, CIGRE 15/33.03.05)

Specifications
Resolution of apparent charge: 12 bit bipolar
Accuracy of phase resolution: 0.3 degree
PD measuring range (AUTO-ranging): up to 100.000 pC, attenuation in 6 dB steps up to 90 dB
PD frequency band: 10 kHz ... 2.000 kHz
Pulse repetition frequency: 50 kHz
Trigger sources: Phase, internal Mains, External
Power supply: 100 V to 240 V AC, 50/60 Hz, < 30 W
Pre-configured digital filters
range of low cut-off (40 dB per decade): 100 / 200 / 300 / 400 / 500 / 750 / 1'000 / 1'500 kHz
range of high cut-off (40 dB per decade): 500 / 1'000 / 1'500 / 2'000 kHz
Note: It is in accordance to IEC 60270 for a wide-band PD Instrument e.g. with a frequency range of 100-500 kHz.
Special UHF Type available

More specifications...