RTU-Based monitoring and control for substations
Customer Story | 2 min read
Customer Story | 2 min read
The increasing utilisation of renewable energy sources is changing the behaviour of electrical distribution networks, such that the network is becoming potentially less stable.
This necessitates closer monitoring and control of the network than in the past. The increasingly complex power flows in the network must be taken account of in the network control system.
The Swiss utility AEW Energie AG based in Aargau is responsible for operating and maintaining a large number of substations as well as the medium- and low-voltage networks in its region.
AEW commissioned Hitachi Energy Switzerland to develop, engineer and commission a concept for monitoring a secondary transformer station.
The solution needed to be price-wise competitive and future-proof, being the basis for extending further transformer stations, which must be refurbished in the future.
Hitachi Energy offered a cost-effective solution, which monitors the transformer station remotely. Important information such as the status of the control and protection IEDs is made available to AEW’s control system in real-time. Additionally, commands to the relays can be sent remotely from the control system.
Common alarms are hard-wired to the binary input card and also sent to the control system.
The customer AEW says that Hitachi Energy has provided them with cost-efficient solution for transferring digital and analog values from digital protection devices (IEDs) in transformer stations to their SCADA system.
The RTU product family allows a modular design which maximises the possibilities to maintain and extend the system.
The finalized solution is fully configured, wired and tested by Hitachi Energy and delivered ready to be installed.