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Configure Scaling Screen - APM Power

Current Transformer Scaling  

This is used to setup the current transformer ratio to let the APM know what conversion needs to be done.

  • i.e., if you have a 100:5 Amp current transformer:
    • Primary CT Current Rating is 100 Amps
    • Secondary CT Current Rating is 5 Amps

Potential Transformer Scaling (Voltage)  

If you are using a potential transformer to lower the voltage input, you can tell the meter what voltage you are applying.

  • i.e., if you have 1000 Volts going into the potential transformer:
    • Primary PT Voltage rating is 1000 Volts
    • Secondary PT Voltage rating is 300 Volts

Percentage Scale  

Select the parameter that you would like to see the percentage of using the Percentage parameter on the Parameters screen.