ABB 216MB66 HESG324510M1 Equipment Rack Model

The choice between the HSR and PRP redundancy protocols depends on the required functionality, cost and complexity. 

The self-healing Ethernet ring solution enables a cost-efficient communication ring controlled 

by a managed switch with standard Rapid Spanning Tree Protocol (RSTP) support. 

The managed switch controls the consistency of the loop, 

routes the data and corrects the data flow in case of a communication switch-over. 

The relays in the ring topology act as unmanaged switches forwarding unrelated data traffic. 

The Ethernet ring solution supports the connection of up to 30 615 series relays.

If more than 30 relays are to be connected, it is recommended to split the network into several rings. 

The self-healing Ethernet ring solution avoids single point of failure concerns and improves the reliability of the communication.

For optimized control and reliable operation of your switchyard, the REC670 is your best choice for transmission applications.

REC670 IEDs (Intelligent Electronic Device) provide control solutions for any type of switchgear and different switchgear configurations. 

The customized REC670 gives you the freedom to select the functionality entirely according to your needs. 

The pre-configured REC670 variants simplify handling since the basic functionality is included and pre-configured. 

If needed, you can add optional functions to easily increase the functionality of 

the REC670 IEDs to meet the specific requirements of your switchyard.

REC670 integrates advanced voltage control for transformers in a substation in a single IED. 

The IEDs feature a large HMI for local control and instant access to important data, 

such as settings, events and disturbance information.