Omicron CPC 100 User Manual

CPC 100 V 3.20
Voltage Transformer - 1
Use the VTRatio test card to measure a voltage transformer’s ratio with injection on the VT’s
primary side with up to 2 kV from AC OUTPUT.
Use the VTBurden test card to measure a voltage transformer’s secondary burden with voltage
injection on the VT’s secondary side with up to 130 V from AC OUTPUT.
To do so, open the circuit as shown in the figure below, and inject the AC voltage from the
CPC 100’s 130V AC output into the burden. Input I AC measures the current that flows into the
burden, and input V1 AC the voltage at the burden.
Burden
VT
A
N
a
n
DANGER
Death or severe injury caused by high voltage or current
► Do not connect the CPC 100 output to the secondary side of the VT. This will cause
hazardous voltages on the primary side
► For VT ratio measurement, connect the CPC 100 output to the primary side of the
VT.
Nominal primary voltage
Primary injection
voltage
Correction factor for
Vprim
Measured
primary voltage
Secondary voltage
measured at V1 AC,
and its phase angle
relative to the
measured Vprim
Nominal secondary voltage
Select to stop test
automatically when
measurement is
done
Output
frequency
1/3 and 1/3: Correction factors for V sec
Select to enter
secondary voltage
instead of
measuring it
Ratio and deviation in %
Polarity:
OK
= phase I sec - phase I prim / = - 45 ° < 0 ° < + 45 °
NOTOK = all other cases
Burden
VT
A
N
a
n
VTRatio VTBurden
Voltage Transformer

Omicron CPC 100 Specifications

General

Brand	Omicron
Model	CPC 100
Category	Test Equipment
Language	English