CPC 100 V1.41
3 - 6
The Frequency-Selective Measurement
The frequency-selective measurement is used to filter out interferences as they
usually occur in substations. To do so, the frequency of the
CPC 100
output
quantity is set to a value different from the substation’s frequency, for example,
the substation operates with a frequency of 50Hz, the
CPC 100
output
frequency is set to 55Hz.
The quantity measured back at the
CPC 100
input is measured selectively, that
is, only a quantity with the specified frequency is fully taken into consideration
for the measurement. Quantities with different frequencies are filtered out
according to the characteristics shown in Figure 2.
Figure 2:
Characteristics of the
frequency-selective
measurement
Apart from Quick, the frequency-selective measurement is also available for
other test cards:
In Quick, Sequencer and Ramping the frequency-selective measurement is
selectable, whereas at the other test cards, it is preset and cannot be cleared.
CT
• CTRatio
• CTBurden
• CTRatioV
• CTLowPower
VT
• VTRatio
• VTBurden
• VTElectronics
Transformer
• TRRatio
Others
• Sequencer
• Ramping
Amplitude in dB
f in Hz
Offset from output frequency
Summary of Contents for CPC 100
Page 12: ...CPC 100 V1 41 x...
Page 28: ...CPC 100 V1 41 1 16...
Page 90: ...CPC 100 V1 41 3 14...
Page 194: ...CPC 100 V1 41 6 30...
Page 250: ...CPC 100 V1 41 8 32 Figure 24 Settings of Amplifier test card for this example use case...
Page 258: ...CPC 100 V1 41 9 4...
Page 264: ...CPC 100 V1 41 10 6...
Page 282: ...CPC 100 V1 41 12 10 Figure 9 Saving tests with the CPC Editor...
Page 284: ...CPC 100 V1 41 12 12...
Page 312: ...CPC 100 V1 41 14 12...
Page 316: ...CPC 100 V1 41 15 4...
Page 350: ...CPC 100 V1 41 16 34...
Page 372: ...OMICRON Contact Addresses 22...
