9230 Coupling Capacitor

HAEFELY_ 9230
The Haefely  9230 high voltage  capacitor  consists of a modular HV capacitor with appropriate coupling impedance fitted in for partial discharge measurements.The high voltage  capacitor is a part of the partial discharge measuring circuit. A closed loop for the high frequency PD signals is established between the test object and the coupling capacitor. The PD pulses are then captured by the measuring impedance and brought to the PD detector.

Product Details:
    • Save room in the HV laboratory: With our compact all in one solution, coupling capacitor, measuring impedance and (optional) high voltage filter in one single unit, the amount of necessary devices for performing a test re reduced
    • Reliable results: Large measurement frequency bandwidth, high stability in capacitance values with frequency and temperature guarantee a consistent and reliable measurement
    • Large measurement bandwidth
    • High stability in capacitance values
    • PD free (less than 1 pC)
    • BNC outputs for PD and voltage readings
    • Large base frame with heavy duty swivel casters
    • Increase your sensitivity: With the optional HV filter interferences from the HV power supply are sufficiently suppressed and sensitivity of the test circuit is increased
Applications:
  • High Voltage Cables
  • Power Transformers
  • Instrument Transformers
  • Rotating Machines
  • Bushings
  • Capacitors
  • Circuit Breakers
  • Surge Arrestors
Accessories:
  • BNCTwin/20BNC twin cable (2 x BNC) 50 Ohm, 20 m.
  • BNCTwin/40BNC twin cable (2 x BNC) 50 Ohm, 40 m.
Options:
  • 9230/AKV9310TMeasuring impedance for DDX 9121b
  • 9230/AQS9110aMeasuring impedance for DDX 9101
  • 9230/SEK-ACSecondary unit for AC measurement
  • 9230/HVFIL-2AHigh Voltage filter 2 A

Product Info