ADR233B
Ref ID : ADR233B/IM/DR
Rev No. : 05
Page No. : 459 of 479
10 ANALYZING EVENT AND DISTURBANCE RECORD
10.1 Overview
The ADR233B Transformer Protection Relay provides several tools (listed below) to analyze the
cause of relay operations. These tools are used to diagnose the cause of fault and 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 after power cut to the ADR33B will
not result in loss of data.
10.2 Event recording
ADR233B relay provides a feature to record and store 512 nos. of events (with event time
stamping is with 1mSec precision) in non-volatile memory through internally by protection and
control functions and externally by triggering the digital inputs. And these can be extracted using
communication port or can be seen on the LCD. The event can be triggered on time stamp
through time synchronization or through internal clock setting.
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