Under what circumstances should power quality inspection be performed?

  1. The transformer has obvious vibration and abnormal noise, and the load rate is not high but the heat is very serious.
  2. The zero line current is very large, and the heat is serious or burned out.
  3. There is an electricity fine by the power supply bureau.
  4. The reactive power compensation equipment is frequently damaged, but the reason is unknown.
  5. In bad weather, electrical equipment often trips or stops.
  6. The operating power of the production equipment cannot reach the rated power, the efficiency is reduced, and the defective rate remains high.
  7. The lighting fixtures flicker frequently, etc.