Bay Control for Sub-transmission Substations

Control solutions for sub-transmission applications assure safe and efficient operation of air and gas-insulated switch gears. Hitachi Energy's 650 series of protection and control devices is a perfect fit for state-of-the-art solutions in sub-transmission systems. The REC650 control IEDs provide guided user interface, a wide range of control and supervision features as well as the possibility to integrate back-up protection within the same device.

Typical applications:

• AIS and GIS sub-transmission substations
• Single or double busbars 
• H-configurations

Features: 

• Guided local control of all motorized switching objects via HMI of the bay control IED
• Two-step operation (select-before-operate)
• Bay, station and double-operation interlocking
• Station and double-operation interlocking information via hardwired station bus or IEC 61850 GOOSE messages
• Primary and secondary system supervision and alarm visualization
• Circuit breaker control and supervision
• Disconnector and earthing switch control and supervision
• IEC 61850-8-1 interface

Options:

• Back-up protection in control IED
• Combined main protection and control IEDs