The remote monitoring and control unit REC 501 is designed to be used for remote and local control, condition monitoring, supervision and automation of secondary substations in medium voltage networks. It can be used with various remote terminal units (RMUs), air-insulated and SF 6-insulated disconnectors, switches and other remotely controlled secondary substation equipment. The modern technology applied in the unit extends the flexibility of the total power system.
Remote control and monitoring for the control of medium voltage disconnectors, switches, ring-main units and other substation secondary equipment include the following features:
- Extensive, bidirectional information exchange between the power system process and the network control center
- Communication via radio telephone, radio link, fixed lines, leased lines, public telephone lines and mobile phones (GSM)
- Operation, communication and reporting secured during power outages by means of maintenance-free batteries
- Power supply unit including charger with integrated compensation for the battery temperature
- Automatic heating control for low temperatures and humid environments
- Management via network control system, e.g. MicroSCADA
- Continuous self-supervision of hardware and software