Locked-Rotor Temperature Test Repeatability-Small Impedance-Protected Motor

Locked-rotor motor-temperature tests can be highly repeatable when the test conditions consist of ambient temperature, proximity draft, mounting geometry etc., and are held identical. Since any change of these conditions will affect the motor temperature, the latter can be meaningful only when the former are precisely defined. In judging motor temperature with reference to a temperature limit specified under a different set of conditions, allowance is to be made to account for the difference of conditions.