MV Loop Automation Solution - Ivision RB
Automatic management and operating system for a structured open loop network with a strict service continuity constraint.
Main characteristics
As part of a structured open loop MV distribution network, the IVISION RB 2.0 system automatically insulated a fault occurring on a section and reconfigures the loop in order to re-establish power as quickly as possible.
This loop reconfigurer uses the following principles:
- Fault passage indicator and location
- Opening of the faulty branch of the loop
- Fault isolation
- Resupply of power to the healthy section
The IVISION RB 2.0 automatic loop reconfiguration system includes:
- Motorised units (disconnecters, switches) at the start of a loop (supply substation) and satellite substations with or without a group
- Protection relay for phase and zero sequence MV units (different adjustment thresholds depending on the status of the loop)
- A monitoring set in one of the network substations or in a service room that can be accessed by the operators
- Selectivity studies ensuring the proper operation/adjustments of protections
Advantages
- Limited losses due to considerably reduced breaking time
- Speed and performance with reconfiguration time of < 500 ms
- Modular and scalable system using the IEC61850 protocol
- Scalability with a decentralised solution
- Cost-effective, no redundancy of FO, HSR technology
- Robust and reliable automation technologies proposed
- Productivity with a single point of acceptance (monitoring + HVA)
Uses
- Service continuity at sensitive sites
- Healthcare establishments
- Household waste and water treatment
- Military bases
- Museums and universities
- Transport infrastructures
- Data centres, Tunnels
