Assessor Resource
UETTDRSB32
Maintain power transformer on load tap changers (OLTC)
Assessment tool
Version 1.0
Issue Date: May 2024
This unit involves the skills and knowledge required to maintain power transformer on-load tap changers (OLTC) in the electricity supply industry (ESI).
It includes maintaining, repairing and overhauling substation voltage regulating equipment restricted to resistor and reactor type high speed OLTC but does not include the main tank tap selector mechanism. It also includes inspecting, recording of information, testing and measuring of associated control circuits, range of acceptance tests required on installed complete units within the parent power transformer, diagnostic and pre-commissioning checks and tests involving tap changers and interpreting these results against agreed specifications.
The application of the skills and knowledge described in this unit may require a licence/registration to practice in the workplace.
Other conditions may apply under state and territory legislative and regulatory licensing requirements which must be confirmed prior to commencing this unit.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)