Live Demo
Voltage drop — service network
A 75 kVA, 120/240 V single-phase transformer feeds four service points through two junction nodes. Adjust loads and conductor type. Wire thickness scales with current; segment labels show per-segment drop. ANSI C84.1 Range A (≤5%) and Range B (≤8%) limits apply at each service entrance.
Transformer size
Conductor
Power factor
0.90Service loads (kVA)
Transformer
— 0 kVA75 kVA rated
| Point | Load | Path (V) | Drop % | Service V | ANSI C84.1 |
|---|
<3% — well within Range A
3–5% — approaching Range A limit
5–8% — Range B (abnormal condition)
>8% — exceeds Range B
Wire thickness ∝ current · segment label = segment drop %