Commercial lighting loads are a major load for large facilities. Troubleshooting them can often be challenging but it's important to evaluate these circuits for both 1) energy conservation and 2) power quality purposes. They are wired single phase, with the loads connected from phase to neutral. Typically, the phase-to-phase voltage is 480V, with the phase-to-neutral voltage at 277V. Measurements need to be taken at the lighting panel, one phase at a time, since power consumption and Power Factor could vary on each phase.Some points to consider:1. Power consumption: Excessive phase unbalance can cause voltage unbalance, which in ...
Troubleshooting commercial lighting loads
Posted by Bosque 789 days ago (http://www.wattwatt.com)Commercial lighting loads are a major load for large facilities. Troubleshooting them can often be challenging but it's important to evaluate these circuits for both 1) energy conservation and 2) power quality purposes. They are wired single phase, with the loads connected from phase to neutral. Typically, the phase-to-phase voltage is 480V, with the phase-to-neutral voltage at 277V. Measurements need to be taken at the lighting panel, one phase at a time, since power consumption and Power Factor could vary on each phase.Some points to consider:1. Power consumption: Excessive phase unbalance can cause voltage unbalance, which in ...
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