Ashida ADR241B, Instruction Manual

Page: 258 / 272

ADR241B
Doc ID : ADR241B-DO_IM_01
Ref ID : ADR241B/IM/DR
Rev No. : 06
Page No. : 258 of 272
10 ANALYZING EVENT AND DISTURBANCE RECORD
10.1 Overview
The ADR241B Feeder Protection Relay provides several tools (listed below) to analyze the
cause of relay operations. Use these tools to help diagnose the cause of the relay operation
and more quickly restore the protected equipment to service.
1. Event Recording
2. Disturbance Recording
3. History Faults Recoding
All reports are stored in non-volatile memory, ensuring that a loss of power to the ADR241B
will not result in lost data.
10.2 Event recording
ADR241B relay is providing feature to record and store 512 nos. of events in non-volatile
memory through internally by protection and control functions and externally by triggering of
digital inputs, and can be extracted using communication port. The event shall be trigger on
time stamp through time synchronization or internal clock setting.
10.3 Disturbance recording
ADR241B relay is provides built in disturbance recording facility for recoding of analogue and
digital channels. Relay records 10 nos. of disturbances and store in to non-volatile memory.
Disturbance records can be saved in COMTRADE format and same can be analyzed in
disturbance analysis software.