Amplitudeand peakhold unit
FilterPersonalcomputer
DigitalPD pulsedisplay
CH2
CH1Amplifier
Int. calibrator
Quadripole
1000 pF
1 Ph230 V50 Hz
ACsupply
Py Sy
10 kVA0-230V/0-100 kV1 Ph, 50 Hz, test transformer
To CH1
For PD measurement
Test object
CouplingCapacitor
Quadopole
Calibrator
Test transformer
Digital StorageOscilloscope
PDGold®
Acquisition System
HV terminal
60 mm i8 mm thk
80 mm i8 mm thk
2 mmdepth
HV
10 mm diameter,polished sharp needle
Earthelectrode
Tip radius:100 µm
Perspexnon-metallic
chamber
HV
Perspexnon-metallic
chamber 10 mm diameter,polished sharp
needle
Earthelectrode
Transformeroil
Tip radius:100 µm
HV terminal
60 mm i8 mm thk
80 mm i8 mm thk
2 mmdepth
2 mmthk
needle
HV terminal
60 mm i8 mm thk
80 mm i12 mm thk
4 mmdepth
2 mm thkneedle
1496-1505_Page_011496-1505_Page_021496-1505_Page_031496-1505_Page_041496-1505_Page_051496-1505_Page_061496-1505_Page_071496-1505_Page_081496-1505_Page_091496-1505_Page_10JAS.pdfPage 1