CAMotorControls
Member
I am installing a new motor control panel for a fume collection system. The main fan motor is 200HP and will be started WYE/DELTA. This will be the only WYE/DELTA setup we have. I'm new to this technology, although I understand it's actually quite old. My question is, at what point do you transition from WYE to DELTA? Are you looking for a certain RPM? Current? I notice that the contactors are controlled by a timer. I found tons of info. on how they work, but nowhere that tells when to switch. Is there just a 'rule of thumb' time value depending on the application and load or something? Thanks in advance guys!
Andy
Andy