Impedance-method voltage drop
Voltage drop from NEC Chapter 9, Table 9 resistance and reactance at your power factor. Medium-voltage runs use typical shielded-cable data, not manufacturer data.
Invite-only beta
NEC® citations follow the edition you select. The product rolls loads up the one-line, sizes feeders, and runs N-1 source and generator step-load checks as you edit.
Voltage drop from NEC Chapter 9, Table 9 resistance and reactance at your power factor. Medium-voltage runs use typical shielded-cable data, not manufacturer data.
Flags phase imbalance against a 10% design limit on PDU, switchboard, busway, UPS, and tie buses.
Medium-voltage cable values used for voltage drop are typical values, not manufacturer data.