1. Your supply
Most Nigerian industrial sites are 415 V three-phase. Small shops and offices are single phase.
2. What you run
Add each load. For motors, enter the shaft rating on the nameplate — the tool adds efficiency and power factor to get the electrical load. Diversity is the share of the time it actually runs: a compressor that runs constantly is 100, standby plant is 0.
| Description | Type | kW each | Qty | PF | Eff % | Diversity % | kVA |
|---|
Result
0Connected kW
0Connected kVA
0Maximum demand kVA
0Generator kVA
Add some loads above and the numbers will fill in.
3. Cable size for a run
Works out the smallest copper conductor that keeps volt drop within your limit over the distance. Enter the load on that particular cable, not the whole site.
0Design current A
—Min. copper mm²
—Actual volt drop
Read this before you buy anything. This tool checks volt drop only. A cable must
also carry its current safely for the way it is installed — buried, in trunking, in free air,
bunched with others, and at Nigerian ambient temperatures — and it must work with the protective
device in front of it. Those checks need the installation conditions and the relevant standard.
Generator sizing here assumes direct-on-line starting of the largest motor; a soft starter or
VFD changes it substantially. Treat these numbers as a first estimate to plan and budget
with, not as a design. Send them to us and an engineer will confirm them properly — that
part is free.