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

InstallationConnection of current inputs to 1 A or 5 A CTsThe current transformer (1 A or 5 A) secondarycircuits are connected to the CCA 660or 651 connector on the ECMD module.The connector contains 3 core balance CT primarycrossing adapters to ensure impedance matchingand isolation between the 1 A or 5 A circuitsand Sepam 2000.The connector may be disconnected with the poweron since disconnection does not open the CT'ssecondary circuit.ESTOR ESB ECMDECMDCE4021201918171615141312111098765432124-30 48-125 220-250V-DCA21201918171615141312111098765432124-30 48-125 220-250AV-DCBSW2SW1654321BABSW2SW1654321BA4321A+B24-30 48-125 220-250V-DC(optioncommunication)87654321INPUTS ANDOUTPUTSINPUTS ANDOUTPUTSSECONDARYCURRENTINPUTSPRIMARYCURRENTINPUTSPOWER SUPPLY1 A or 5 A CT blockand connection diagramECMDPCL1L2L3B4B1B5B2B6B3P1P2CCA 651entrées courant du Sepam1 2 3Selection of microswitchSW1 and SW2operating modesSepam 2000 has several possible operating modes.The operating mode is selected via microswitcheson the rear of the device. They must be set beforeSepam 2000 is switched on, i.e. while Sepam 2000is de-energized.The microswitches are hidden by the CCA 660or 651 connector once it has been installed.N.B. Sepam 2035 model CR has 2 inputsfor connecting CTs.Remember to set the microswitches for both inputs.Microswitch settingSW2For use on the 5 Asecondary circuit.SW2For measuring residual currentby the sum of the currents.SW1SW1SW2For use on the 1 Asecondary circuit.SW2For measuring residual currentby a core balance CT.SW1SW1Default position.Installation1/7