8,33 Amps
40 amps
To answer this question the wattage of the block heater must be stated. Amps = Watts/Volts.
Assuming it is a 208-volt line voltage (as normal in 3-phase) the phase voltage is that divided by sqrt(3), or 120 volts. Each phase has to supply 10 kW so the current on each phase is 83.3 amps.
45000 / 208 /sqrt(3) = 125A per phase this is probably called a boiler unless it has a 2000Gallon tank
30
To answer this question the voltage of the heater must be given. I = W/E.
For a single phase circuit, the equation you are looking for is I = W/E. Amps = Watts/Volts.
40 amps
To answer this question the wattage of the block heater must be stated. Amps = Watts/Volts.
Assuming it is a 208-volt line voltage (as normal in 3-phase) the phase voltage is that divided by sqrt(3), or 120 volts. Each phase has to supply 10 kW so the current on each phase is 83.3 amps.
45000 / 208 /sqrt(3) = 125A per phase this is probably called a boiler unless it has a 2000Gallon tank
30
The electric heater will have power rated in Watts. The Amps it will draw depends on the voltage system you are using. Can be calculated by formula I (Amps) = P / V In the USA with 110V system a 2400W heater will draw 2400 Watts / 110 Volts = 21.8 Amps In Australia with a 230 V system a 2400W heater will draw 2400 Watts / 230 Volts = 10.4 Amps
The formula you are looking for is I = W/E.
100 KW divided by 415 volts is 241 amperes. Power = voltage times current, so current = power divided by voltage.
A 1-HP motor is reckoned to draw 7 amps at 240 v single-phase. The same power of motor would draw 3.5 amps at 480 v single-phase, but a 480 v supply could most likely be a three-phase suppy, and the current in that case would be reckoned as 2 amps.
It means 225 amps on each phase.