Transient Recorder - GE D90 Plus Instruction Manual

Line distance protection system

Hide thumbs Also See for D90 Plus:

Table of Contents

TRANSIENT RECORDER

Transient recorder

The transient recorder captures short duration events, such as faults at a high resolution.

Under normal operation, the transient recorder continuously captures pre-fault data and

stores this data in memory. When a trigger is received, the transient recorder captures the

data during the period of the fault. Both the pre-fault and fault data are stored as records

in non-volatile memory within the D90

The transient recorder captures the instantaneous values of all voltage and current signals

connected to the D90

. In addition, the user can configure digital and analog channels,

each of which can be used to trigger or re-trigger the transient recorder. A re-trigger

captures an additional record but with no pre-fault data. Triggered and re-triggered

records are merged into a single file, and the maximum number of re-triggers for a

particular fault is user-programmable.

CHAPTER 10: DIGITAL FAULT RECORDER

Figure 443: Fault locator logic

LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL