Irrigation System Voltage Drop Calculator

# of Valves

Valve Coil
Volts

Inrush
Watts

Holding
Watts

Total Amps (at Rated Voltage)

Total Impedance (at Rated Voltage)

Conductor Type

Feeder

Return

Circuit Length
Feet

Circular Mils

Circular Mils

Conductor Temp
    

Resistance

Resistance

Total Conductor Resistance

Supply Voltage 


Circuit Current (Including Conductors)

Inrush

Holding

Voltage Drop (Conductor IR Loss)

Voltage at Load (After Volt Drop)

% Voltage Drop (Ref: Load Rated Voltage)

Ed Lethert Associates, Inc.

Version 2.2

11/29/2006