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1MRS750881-MUM
Remote Monitoring and Control Unit
Technical Reference Manual
• Rated current (5 A, 1 A, 0.2 A) of the current measuring input (= rated current of
the matching transformer of REC 523)
• Amplitude correction factor (0.9000...1.1000) of the primary current transformer
at rated current
• Correction parameter of the primary current transformer at rated current
(-5.00°...0.00°)
• Amplitude correction factor of the primary current transformer at a signal level of
1% of the rated current (0.9000...1.1000)
• Correction parameter of the primary current transformer at a signal level of 1% of
the rated current (-10.00°...0.00°)
Values to be set for a voltage transformer:
• Rated voltage of voltage input (same as the secondary rated voltage of the
primary voltage transformer connected to the voltage input, that is, 100 V, 110 V,
115 V, 120 V, 230V)
• Rated voltage of primary voltage transformer (0.100...440.000 kV)
• Amplitude correction factor of the primary voltage transformer voltage at rated
voltage (0.9000...1.1000)
• Correction parameter of the primary transformer angle error at rated voltage
(-2.00°...2.00°)
Values to be set for a current sensor (Rogowski coil):
• Secondary rated voltage of the current sensor used at the preset primary rated
current (100...300 mV)
• Primary rated current of the current sensor used (1...6000 A)
• Amplitude correction factor of the current sensor used at rated current
(0.9000...1.1000)
• Correction parameter for the phase displacement error of the current sensor
4
(-1.0000°...1.0000°)
Values to be set for a voltage divider:
• Division ratio of voltage divider primary and secondary voltage (1...20000)
• Rated value of primary phase-to-phase voltage (0.100...440.000 kV)
• Amplitude correction factor of the voltage divider (0.9000...1.1000)
1. For revision A, the voltage range is 0...150 kV. For revisions B, C, D and E, the
range is 0...300 kV.
2. For releases prior to revision F, the voltage range is 0...300 mV.
3. For releases prior to revision F, the current range is 0...6000 A.
4. Only included in revision D or later, refer to Section 11.1. Revision identification.
Note that this parameter can only be set via the Relay Setting Tool.
5. For the releases prior to revision F, the division ratio is 0...20000.
2
REC 523
1
3
5
1
31
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