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Analogue Meters Testing

Picture

Testing Procedures

  • Calibrate the meter at different values.
Download: Meters Test Format

Equipment Required

  1. Injection Kit (Freja).
  2. ​Connection Cables (Banana Type). 
Picture
FREJA 300
Picture
Connection Cables

Meter Calibration Test

  • Connection will be same as the shown figure.
  • Adjust meter pointer exactly at zero scale.
  • Sometimes we connect a series resistor to control injected current for small scale meters.
  • For Ammeters:
    1. Inject AC current with different values (25%, 50%, 75% & 100% of full scale).
    2. Calculate the meter error accuracy at each value.
  • For Voltmeters:
    1. Inject AC Voltage with different values (25%, 50%, 75% & 100%  of full scale).
    2. Calculate the meter error accuracy at each value.
Picture
Connection Circuit

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  • Home
    • Site Map
    • About Substations
  • Formats
    • Auxiliary Relays
    • Equipments Formats
    • Protection Formats >
      • Energization Tests
    • Functional Test Format
  • Manuals
  • Software
  • Support
    • Testing & Commissioning
    • Test Procedures
    • Relays Calculations
    • Relays Configuration
    • Tutorials
    • References
    • Label Design
  • Blog
  • About Me