LED lights work fine when sharing linear loads however when sharing nonlinear loads they stop working on three phase multiwire branch circuits. The voltage wave form is beautiful however the current wave form becomes a mess with nonlinear loads which the LED lights do not seem to like. Any...
Any idea how a burnt up plastic power pack for a string of 277v LED fixtures can burn up half the relays in a lighting control board and then trip multiple 20A circuits and the 200A main.
I am thinking bad design - breakers should be after the lighting control board, especially if they are...
Hello, what mechanical issues can create VFD brake resistors to overheat and short that is not related to the actual programming or VFD.
Had to replace the resistors twice recently on an industrial 480V washing machine motor, before I go ahead and replace the VFD it would be helpful to get some...
Hello,
Have a question on a Cat engine/generator EMCP 2 control panel problem - the GSC keypad is not working properly. Cannot access the fault information and scroll between phases, only getting enough information to run the generator.
Is there a way to get all the old programming...
