Coupling capacitors are used for the decoupling of PD current pulses together with measuring impedances placed in series in standard measuring circuits to convert into voltage pulses for analysis with a PD detector according to IEC 60270. The coupling capacitor also acts to drop the test voltage to a safe, measurable value.
Coupling Capacitor Models:
High voltage capacitors for PD or AC measurements (≤ 200 kV): 9230 Series
High voltage capacitors for PD or AC measurements (≥ 300 kV): KK Series
25 kV PD Coupler with measuring impedance and HV filter: 9230/25/1-PD
30 kV PD Coupler with measuring impedance and HV filter: 9230/30/9-PD
HV TECHNOLOGIES, Inc. also offers a wide range of RC dividers for DC PD testing. We have the capability for custom coupling capacitor solutions to meet your exact testing needs. Contact us for more information.