help with 3 phase delta current calculation

Thread Starter

mde

Joined Oct 17, 2007
1
I need some help calculating the circuit current for a 3 phase delta heater. The heater is rated 30KW and will be connected to 240 vac delta. Please check my calculations.

I(total) = 30KW/1.73X240= 72.3 A

assuming that the loads are balanced so the current should be L1=L2=L3

L1= 72.3/3= 24.1 A
 

recca02

Joined Apr 2, 2007
1,214
power = 1.73*240*line current
line current=72.3 A -------from ur calculations
phase current(current in each phase) = line current/1.73= 41.72A
 
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