Assessor Resource
UETTDRTS07B
Perform accuracy checks on instrument transformers
Assessment tool
Version 1.0
Issue Date: May 2024
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This competency standards unit is intended to apply to any recognised development program that leads to the acquisition of a formal award at AQF level 5 or higher.
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1.1)
This Competency Standard Unit covers the task of undertaking accuracy checks on instrument transformers and includes proving their functionality. It also includes both current and voltage instrument transformers having various operating principles, which are designed for metering, protection, monitoring or control usage. It also encompasses tasks associated with the isolation from other secondary circuits, inspection, measurement of excitation curves, measurement of phase and ratio errors and comparison of results with previous historical results and/or published specifications.
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