MVA Calculator

MVA Calculator (ONAN/ONAF1)

Enter the Max MVA Rating (ONAF2) MVA

This tool calculates MVA ratings for a 3-stage (ONAN/ONAF/ONAF2) cooled power transformers, provided the MVA capacity is known at one of the ratings.

  1. Enter a max MVA rating (ONAF2)
  2. Press the calculate button to get the other two ratings at ONAN and ONAF1.
MVA Rating (ONAF1) MVA
Base MVA Rating (ONAN) MVA

MVA Calculator (ONAF1/ONAF2)

Enter the Base MVA Rating (ONAN) MVA

This tool calculates MVA ratings for a 3-stage (ONAN/ONAF/ONAF2) cooled power transformers, provided the MVA capacity is known at one of the ratings.

  1. Enter a base MVA rating (ONAN)
  2. Press the calculate button to get the other two ratings at ONAF1 and ONAF2.
MVA Rating (ONAF1)MVA
Max MVA rating (ONAF2)MVA

Megawatts Calculator

Enter the MVA Rating MVA

This tool calculates Megawatts rating for a 3-stage (ONAN/ONAF/ONAF2) cooled power transformers, provided the MVA ratings and the Power Factor Value are known.

  1. Enter the MVA rating (ONAN)
  2. Enter the Power Factor Value
  3. Press the calculate button to get the Megawatts rating.
Enter the Power Factor Value
(In Decimal)
Caculated Megawatts MW

Megawatts Calculator

Enter the Kilovolts kV

This tool calculates Megawatts rating for a 3-stage (ONAN/ONAF/ONAF2) cooled power transformers, provided the Voltage, Current and Power Factor values are known.

  1. Enter the Kilovolts Value
  2. Enter the Current Value
  3. Enter the Power Factor Value
  4. Press the calculate button to get the Megawatts rating.
Enter the Current Amps
Enter the Power Factor Value
(In Decimal)
Calculated Megawatts MW