CPC 100 V1.41
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Test settings
Figure 14:
RWinding test card
with test results
Navigate to the parameter fields, and enter the values according to your test
requirements:
Note: The transformer’s core is magnetized after the measurement.
Demagnetization can be done using the CT Excitation test card (see ”CT
Excitation (Kneepoint)” on page 15 of this chapter.
Range: output range (Use the 6A DC output for measuring CTs.)
Itest: nominal test current
R min: calculated minimum winding resistance value (display only).
Depends on the value of the nominal test current and the
measuring range:
– 400A DC: Rmin = 0.2mV / Itest
– 6A DC: Rmin = 0.2mV / Itest
– V DC (2-wire): Rmin = 0.2
Ω
R max: calculated maximum winding resistance value (display only).
Depends on the value of the nominal test current and the
measuring range:
– 400A DC: Rmax = 5V / Itest.
– 6A DC: Rmax = 10V / Itest.
– V DC (2-wire): Rmax = 20k
Ω
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