Ltg. Calc

[Alwayslearningelec]

These are both for the same lighting. Voltage is 120v.
When I convert the watts to amps I get in the 400A range.
When I covert the KVA I get in the 200A range.

What am I doing wrong.

 

[david luchini]

What am I doing wrong.

Not enough information to answer that question. Show your calculations.

Though I am wondering how the lighting kVA could be smaller than the lighting kW.

 

[Alwayslearningelec]

Well now that I actually do the formula myself instead of online calc.

KVA to Amps single phase = 1000X53/120 = 441A

Watts to Amps = watts/120v - 464.

So close, sorry.

 

[david luchini]

Well now that I actually do the formula myself instead of online calc.

KVA to Amps single phase = 1000X53/120 = 441A

Watts to Amps = watts/120v - 464.

So close, sorry.

Assuming it's a 208V- 3ph system, you wouldn't want to use 120V to figure out the current.

And the kVA can't be less than the kW.

 

[Alwayslearningelec]

Assuming it's a 208V- 3ph system, you wouldn't want to use 120V to figure out the current.

And the kVA can't be less than the kW.h figuring total amps for the lighting. Little help, thanks

So how would you approach figuring total load in amps for lighting? Little help, thanks