Sepam - HV/MV Protection and control units (ENG) - Trinet

Contentschapter / pagemetering functions 1/1protection functions 2/1appendix 3/1Notationc Sepam 2000 may include several current signal acquisition boards or severalvoltage signal acquisition boards.The currents, voltages and frequency related to the first acquisition boardare noted I for current, V for phase voltages, U for system voltages andF for frequency.The currents, voltages and frequency related to the second acquisition boardare noted I’ for current, V’ for phase voltages, U’ for system voltages andF’ for frequency.Example :metering function: phase currentv I1, I2 and I3 are the currents connected to the first current acquisition board,v I’1, I’2 and I’3 are the currents connected to the second current acquisitionboard.c Sepam 2000 may include several times the same function:v X is the identification number of a function which uses the signals acquiredby the first acquisition board,v Y is the identification number of a function which uses the signals acquiredby the second acquisition board.Example :protection function: phase overcurrentv F01X, 1 i X i 6 means that F011, F012, F013, F014, F015 and F016are the 6 modules which perform the overcurrent function for phases I1, I2 and I3acquired by the first current acquisition board.v F02Y, 1 i Y i 2 means that F021, F022, are the 2 modules which performthe overcurrent function for phases I’1, I’2 and I’3 acquired by the second currentacquisition board.c In the rest of the document, the term “pocket terminal” refers to any terminalthat can be connected to 9-pin sub-D plug on the front of Sepam 2000, namely:v TSM 2001 or PC equipped with the SFT 2801 software program formeasurement display,v TSM 2001 or PC equipped with either the SFT 2801 or SFT 2821 softwareprogram for protection setting.Metering functions1