50-413-541Instrument Metering for Meter Technicians-Module Six
Course Information
Description
This module will focus on common three phase metering setups where the apprentice will match meters with services, calculate meter/billing multipliers, match meters with transformer connections, match meters with service voltage. 
Total Credits
1
Course Competencies
  1. Characterize the basics of instrument transformers
    Assessment Strategies
    Oral, Written and/or Skill Assessment
    Criteria
    describe the purpose of using instrument transformers
    identify transformer specifications and applications
    describe why current transformers should never be open-circuited

  2. Choose instrument transformers for various applications, service types and voltages
    Assessment Strategies
    Oral, Written and/or Skill Assessment
    Criteria
    explain Blondel's Theorem
    identify various meter forms
    determine application of instrument transformers to meter forms
    examine various instrument transformer applications
    match meter forms to service types

  3. Build a poly-phase instrument meter setting from service specifications
    Assessment Strategies
    Oral, Written and/or Skill Assessment
    Criteria
    determine information needed to design meter setting
    select instrument transformers and meter
    determine billing determinants needed from meter
    build setting according to standard metering drawings

  4. Analyze the purpose and process of burden testing instrument transformers
    Assessment Strategies
    Oral, Written and/or Skill Assessment
    Criteria
    define burden
    examine purpose of burden testing
    identify burden ratings
    identify processes for burden testing
    choose process to perform burden testing of instrument transformers