ABB Relion 650 Series Installation Manual

Also see for RELION 650 SERIES: Technical manual Technical manual Commissioning manual Engineering manual Operation manual

Contents

IEC15000447-2-en.vsd1IEC15000447 V2 EN-USFigure 20: Rear view of IED showing the earthing pointPos Description1 Protective conductor terminal. For connection of the external protective(earth) conductor.Use the protective conductor terminal (1) for connection to the stationsearthing system.6.1.3 Connecting the power supply module SEMOD128790-5 v7The wiring from the cubicle terminal block to the IED terminals (see Figure 15 for PSMconnection diagram) must be made in accordance with the established guidelines for this typeof equipment.Insert only the corresponding male connector to the female connector.Inserting anything else (such as a measurement probe) may violate the femaleconnector and prevent a proper electrical contact between the printed circuitboard and the external wiring connected to the screw terminal block.The auxiliary power wiring should have a minimum cross-sectional area of 1.0 mm2 and avoltage rating of 250 V. Branch circuit protection must be provided in the auxiliary powersupply wiring to the IED, and if necessary it must be possible to disconnect manually from thepower supply. Fuse or circuit breaker up to 6 A and 250 V should be close to the equipment. Itis recommended to separate the instrument transformer leads from the other cables, that is,they should not be run in the same cable ducts or loom. The connections are made onconnector X11.6.1.4 Connecting to CT and VT circuits M11991-6 v3CTs and VTs are connected to the 24–pole connector of the Transformer input module (TRM)on the rear side of the IED. Connection diagram for TRM is shown in figure 12.Section 6 1MRK 514 027-UEN DConnecting36 650 seriesInstallation manual© Copyright 2017 ABB. All rights reserved