FACTS

Interesting facts which is known to only Electrical Engineers

  1. Electric Current is not flow in electrical circuit only charge flow from negative terminal to positive terminal, and we assume that current flow in the circuit from positive terminal to negative terminal.
  2. Electrical current flow due to only potential difference.
  3. In three pin plug earth pin is thicker and longer to provide the low resistance path for leakage current and assured the safety of electrical instrument.
  4. An electrical engineer can be told the transmission line voltage to see only insulator string, because one insulator is about 11kV. ex- if any string having 6 insulator, so the transmission line voltage is 66kV.
  5.  In kW,kVA, kA, “k” is small alphabet not capital. KW,KVA & KA is wrong display.
  6. In any circuit breaker making capacity is 2.55 times of breaking capacity.
  7. Zero watt bulb is not really zero watt, its about 5w to 15w, In older time mechanical electrical meter didn’t very much precise and not measure the low power consumption.
  8. Ratings:
    • Transformer & Alternator –  kVA/MVA
    • Fuse – A
    • Motors – kW/MW
    • Battery – VA
  9. About 70% electrical energy produced in the world actually consumed by induction motor.
  10. Train equipment works on 110 V AC.

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