Atec Phenix-PD2U - Manual (Page 4)

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connecting caBles
A full set of high quality RG58 cables with BNC connectors is supplied.
• 2 x 20 m
• Quadrupole Connection Set
• Power Lead
TECHNOLOGIES
PHENIX
R
A calibration charge injector is suitable for use in calibrating partial
discharge measurements. The appropriate choice of a calibration
instrument depends on the range of typical charge values of the PDs
being measured. Calibrators can also be used for time domain reflect-
ometry in cables to determine cable length and location of joints.
The calibrator is switched on with the pushbutton On/Off. Both amplitude
(Range) and polarity (Pos/Neg) of the single charge pulse per cycle
are displayed and can be adjusted by pressing the two buttons. Each
calibrator is also available supplying two pulses per cycle, as well as
with double impulse output with adjustable interval.
The instrument automatically synchronizes to line frequency by a photo
diode. In case of insufficient pick-up of power frequency light, the
calibrator automatically selects the internal quartz oscillator.
Calibration impulse generators are unique in that the charge pulse is
generated by injecting a variable voltage step (correlated to an internal
reference) via a fixed capacitor. This injection capacitor is relatively
small, as the step voltage amounts up to 120 V for full range output.
Therefore, calibrators offer excellent impulse properties. Further,
calculation of the correction factor is usually not necessary (C
I
<<C
S
).
Model range use
CAL1A 1,2,5,10,20,50,100 pC Standard lab use
CAL1B 100,200,500 pC, High output, mainly
1,2,5,10 nC suitable for rotating
machine testing and
recommended for
transformer testing
CAL1C 1,2,5,10,20,50,100 pC Can be used with HV
at 100 pF with external Injection Capacitor
high voltage capacitor
CAL1D 10,20,50,100,200,500,1000 pC Transformer Testing
Additional Specs: 50 Hz or 60 Hz light synchronization, IEC60270
compliant, 2 pulses/cycle option, BNC connection.
Calibrators include a DKD calibration certificate to ensure the
traceability to international standards.
caliBrators