ANSI 32 reverse-power relay setpoint - typically 5–15 % of rated kW for diesel generators, 2–6 % for turbine.
Formula
$$ P_\text{setpoint} = \text{Rated kW} \cdot \text{margin}% $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Rated kW$ | Generator rating | kW | nameplate |
| $Margin$ | Percentage of rated | % | protection setting |
Sources
- IEEE C37.102 - Guide for AC Generator Protection.