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The total resistance of the transmission line between Party A and Party B is 10 Ω. The power to transmit electric energy from Party A to Party B is 11000 kW, and the transmission voltage is 220kV
First of all, the power given by this problem is a confusing condition. The current is equal to the voltage divided by the resistance. The voltage has been given 220kV and the resistance has been given 10 ohm. According to Ohm's law, the current is 22ka
How to calculate the known current and voltage power voltage 380V current 60A power kw
It's a submersible pump. The voltage is 380V, the current is 60A, and the electricity charge is 0.36 yuan per kilowatt hour. How much should I charge for one hour? Three balances
The power factor of the motor is very low. It is suggested that the power of the motor should be 0.75
P=1.732*0.38*60*0.75
=29.62(kW).
Know how to calculate the power kilowatt by current. For example, the current of three 380V wires is 60A, 70A and 60A respectively. How to calculate the total power kilowatt
Only apparent power can be calculated
S＝1.732×U×I＝1.732×0.38×[(60＋70＋60)/3]≈41.7(KVA)
The power factor COS is also needed to calculate the power
P＝1.732×U×I×cosφ
Detailed calculation formula of electric power (220 V and 380 V), preferably with examples
This is the standard formula P = UU / R P = IIR [u = voltage r = resistance I = current]. This is the main practical application of the deformation formula. Let's take a look at the known conditions or which conditions are good to test and meet that formula. For example, the
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