# 3 phse power calculation with out remove load

1. Sep 8, 2009

### jidesh

1. The problem statement, all variables and given/known data

sir am new technician my boss told me that to find 3 phase power with out off the machine . i have single phase clamp meter can measure voltage and current . how to find total power.

2. Relevant equations
$$\sqrt{}3$$* V line *I line * cos\$

3. The attempt at a solution
find all the current and voltage on each line find average use equation
1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

2. Sep 8, 2009

### rootX

I know that you need at least two meters to get 3 phase power.
you put P1 from a to b wires and P2 from b to c.

power is equal to P_meter1 + P_meter2
and Q is sqrt(3) {P_meter1-P_meter2} I think

You should google finding three phase power.