A connection diagram is needed to connect the analog signals.
- Use the compression type for CT/VT terminals. The wires for the analog signals can be connected to the CT/VT terminals before the connector is connected to the protection relay. The connector features an automatic short circuit mechanism for the current terminals. Therefore, detaching the connector from the unit does not open the secondary circuit of the CT which otherwise could cause dangerously high voltages. To avoid a mismatch between CT and VT connections, the connectors are color coded. The light gray pairs with short circuit facility are intended for CTs while the dark gray pairs without short circuit facility are for VTs. The counterpart connectors on the module have the same color coding.
- 1
- Light gray pairs with short circuit facility (CT), RAL7035
- 2
- Dark gray pairs without short circuit facility (VT), RAL7042
- 1
- CT connector coding
- 2
- VT connector coding
- 3
- Empty connector
- 1
- CT connector coding
- 2
- VT connector coding
- 3
- Empty connector