
AQ-B398 Busbar protection IED
AQ-B398 busbar protection IED comes in two versions: one version is a centralized busbar protection unit (AQ-B398C), while the second is a main unit for distributed busbar protection applications (AQ-B329D). In distributed busbar protection applications the unit communicates with bay units using the IEC 61850-9 intercommunication standard. The bay unit can be any of the AQ-300 IEDs with the incorporated busbar protection bay unit functionality. AQ-B398 provides a total trip time of less than 20 ms for busbar faults.
Highlights
- Centralized busbar protection
- A maximum of six (6) bays and two (2) busbar sections in a three-phase configuration
- A maximum of 24 bays and eight (8) busbar sections in a single-phase configuration
- Distributed busbar protection
- A maximum of 24 bays
- A synchronizing signal with 1 ms time intervals in a distributed configuration
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