Analyze voltage rise on distribution feeders caused by solar PV generation and determine if mitigation is needed.
Input Parameters
Results
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PV Current
A
--
Voltage Rise
V
--
Voltage Rise
%
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ANSI C84.1 Status
Note: ANSI C84.1 allows +5% voltage rise (Range A). Smart inverters with Volt-VAR can mitigate voltage issues. IEEE 1547-2018 requires voltage regulation capabilities in new DER.
Reference
I_pv = PV_kVA x 1000 / (sqrt(3) x V_base)
R = Z x cos(atan(X/R)), X = Z x sin(atan(X/R))
Voltage Rise = I x (R x cos(phi) + X x sin(phi))
Voltage Rise % = dV / V_base x 100
ANSI C84.1 Range A: +/- 5%, Range B: +/- 8%