ONLINE PARTIAL DISCHARGE MONITORING SYSTEM

Recommended Practice for Electrical Equipment Maintenance, states that insulation breakdown is the number one cause of electrical failures. In an electrical asset, partial discharges provide an early indication of dielectric irregularities that can lead to insulation breakdown.

                Partial discharges are electrical sparks in gas voids within the insulation when the voltage is high enough. The spark generates a fast current pulse which travels through the stator winding. The larger the Pd pulse, the higher the current pulse that reaches the winding terminals.

Partial discharge tests are probably the best means for assessing the insulation condition without a visual inspection. By measuring the PD activity of a stator an indication of the health of the winding can be obtained.

A partial Discharge test will be done using a Partial Discharge Analyser at normal running conditions without disturbing the supply.

PD Analyser system is used for partial discharge tests that include analysis software that gives discharge patterns for defect identification and quantifies the partial discharge in the winding for trend analysis. The partial discharge pulses are detected by connecting coupling capacitors to the generator power leads. The partial discharge signal and the phase reference of the generator voltage are transmitted via a coaxial cable to the measuring instrument, which records and analyzes the partial discharge pulses.

For online measurement, there will be pre-installed couplers where the phase leads are connected to the coupler terminal. The measuring device has three coaxial cable inputs from the coupling capacitors and three outputs.

We provide Phase Resolved Partial Discharge (PRPD) analysis which will enable us to identify different types of PD.

  • Internal Discharges
  • Surface Discharges
  • Slot Discharges
        
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Contact Info

Phone number

(456) 789 10 12

(456) 789 10 15

Email address

demo@gmail.com

indusinfo@gmail.com

Address info

Prognosys EMS(P) Ltd.,
1st floor, Subishi town center,
Mokila, Shankarpalle Road,
Hyderabad, Telangana – 501203.