How do you convert power to units?
Per Unit Calculation | Per Unit System Examples
- The per unit (PU or P.U.)
- The PU system of calculations was more prevalent in the past years.
- A PU value can readily be converted back to a voltage, power, or any other value as long as the base value is known.
- Per Unit = (Present value) ÷ (base value)
What is MVA base?
It is common practice to assign study base values to MVA and KV. Base amperes and base ohms are then derived for each of the voltage levels in the system. The MVA assigned may be the MVA rating of one of the predominant pieces of system equipment or a more convenient number such as 10 MVA or 100 MVA.
What is PU in power system?
Per unit system (pu) • The per unit value of any quantity is defined as the ration of the actual value of. quantity to its base value. • PU of any quantity = Actual value of quantity in any unit.
How is MVA base calculated?
Fault MVA at Transformer Secondary Winding = 2.5/0.0807. Fault MVA at Transformer Secondary Winding =31 MVA. Fault Current = Fault MVA / Base KV. Fault Current = 31 / (1.732×0.415)
How do you calculate per unit?
How to Calculate Unit Price. The unit price can be found using a simple formula if the quantity and total cost is known. Simply divide the total price by the quantity to find the unit price. Thus, the unit price is equal to the total price divided by the quantity.
Which gives power per unit area?
Intensity is defined to be the power per unit area: I=PA I = P A and has units of W/m2.
How do you convert MVA to amps?
Therefore, it takes 1,000 kilo-volt amperes to get one mega-volt ampere. Divide the number of kVA by 1,000 to convert to MVA. For example, if you have 438 kVA, divide 438 by 1,000 to get 0.438 MVA. Multiply the number of kVA by 0.001 to convert to MVA.
What means per unit area?
1. force per unit area – the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); “the compressed gas exerts an increased pressure” pressure, pressure level.
What is the formula for unit price?
We divide the price of certain number of units of an item by the number of units to find the unit price of that item. For example, to find the unit price of 12 ounces of soup that costs $2.40, divide $2.40 by 12 ounces, to get unit price of soup as $0.20 per ounce.
How do you convert dB to power?
How to convert dBm to watts. The power conversion of dBm to watts is given by the formula: P (W) = 1W ⋅ 10 (P(dBm) / 10) / 1000 = 10 ((P(dBm) – 30) / 10)
How do you convert kVA to hp?
To convert kVA to horsepower, start by finding the result in kilowatts. Multiply kVA by the power factor, then multiply that by the efficiency if available.
What is the formula for calculating amps?
The formula to find amps using the power factor is: amps = (kW × 1,000) ÷ (PF × volts) For example, find the current of a 5kW generator with an efficiency of 80% at 120 volts.
How many amps in 80 watts?
80 watts: 6.667 amps: 12 volts: 90 watts: 7.5 amps: 12 volts: 100 watts: 8.333 amps: 12 volts: 110 watts: 9.167 amps: 12 volts: 120 watts: 10 amps: 12 volts: 130 watts: 10.833 amps: 12 volts: 140 watts: 11.667 amps: 12 volts: 150 watts: 12.5 amps: 12 volts: 160 watts: 13.333 amps: 12 volts: 170 watts: 14.167 amps: 12 volts: 180 watts: 15 amps: 12 volts: 190 watts: 15.833 amps: 12 volts: 200 watts: 16.667 amps: 12 volts: 210 watts: 17.5 amps