Technical Data Of The Measuring Devices - ABB REM 543 Technical Reference Manual

ABB Network Partner
4.1.5.2.
Page 28
REM 543 Protection,
Monitoring and Control

Technical data of the measuring devices

The technical data of the measuring devices is set in their own dialogue boxes in the
Relay Configuration Tool. The set values will affect the measurements carried out by
the machine terminal.
When the values listed below for the measuring devices are changed via the MMI, the
new values take effect only after they have been stored via the parameter "Store" and
the relay has been reset via the parameter "Software reset" in the menu Configuration/
General.
Values to be set for a current transformer are:
• rated primary current (0...6000 A) of the primary current transformer
• rated secondary current (5 A, 2 A, 1 A) of the primary current transformer
• rated current (5 A, 1 A) of the current measuring input (= rated current of the match-
ing transformer of the machine terminal)
• amplitude correction factor (0.9000...1.1000) of the primary current transformer at
rated current
• correction parameter for the phase displacement error of the primary current trans-
former 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 for the phase displacement error of the primary current trans-
former at a signal level of 1% of the rated current (-10.00°...0.00°)
• type of signal to be measured
Values to be set for a voltage transformer are:
• rated voltage of voltage input (same as the secondary rated voltage of the primary
voltage transformer connected to the voltage input, 100 V, 110 V, 115 V, 120 V)
• rated voltage of primary voltage transformer (0...440 kV)
• amplitude correction factor of the primary voltage transformer voltage at rated volt-
age (0.9000...1.1000)
• correction parameter for the primary transformer phase displacement error at rated
voltage (-2.00°... 2.00°)
Values to be set for a current sensor (Rogowski coil) are:
• secondary rated voltage of the current sensor used at the preset primary rated current
(0...300 mV)
• primary rated current of the current sensor used (0...6000 A)
• amplitude correction factor of the current sensor used at rated current
(0.9000...1.1000)
Values to be set for a voltage divider are:
• division ratio of the voltage divider primary and secondary voltage (0...20000)
• rated value of primary phase-to-phase voltage (0...440 kV)
• amplitude correction factor of the voltage divider (0.9000...1.1000)
Technical Reference Manual
Part 1, General