What is the difference between technical loss and non-technical loss?

Technical losses are coming from current flowing in electrical installations. They can not be avoided, but reduced by proper installation. Technical losses can be calculated.

  • Losses due to conductor resistance
  • Losses due to induction of electromagnetic fields
  • Dielectric losses due to insulation material between the conductors
  • Losses due to harmonic distortion
  • Losses due to poor earthing

Non-technical losses are more difficult to reduce. 

  • Meter tampering 
  • Hooking or bypassing the meter
  • Wrong programmed instrument transformer ratios in the meter
  • Burden for instrument transformers too high
  • Wrong meter readings
  • Meter is faulty or out of accuracy class
  • Unpaid electricity bills

Non-technical losses are more difficult to reduce. For the technical debugging on-site test equipment can solve many cases. For customer which don’t pay their bills, prepayment meters can be installed.

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Published by

Lao Ren

more than 30 years experience in energy metering Product Director Shenzhen CLOU Electronics

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