If I have a 208VAC AB phase (from a 3 phase supply) powering five 220V motors, is it best to have a step up transformer or just go ahead and use an isolation transformer rated at 208 Or 220 – between the motors and where they tap off of the supply phase. The main reason I’m doing this is to...
Two Questions:
1) In the past we have used five SCR Drives to run five small motors. Since only one motor actually needs directional/speed control, is it bad design practice to use AC induction motors operated by SSR’s (Power-IO H Family SSR’s) for the four motors that do not need...
Three Questions:
1) In industrial controls in the U.S., when using 3-phase is it more common to use 208 or 220 VAC per delta phase?
2) If a few intermittently operating 1 hp motors are tapped off of one phase of a 3-phase system, is it a go idea to install a transformer between the motors and...
I have 4 systems used to perform a process – a press, extruder, and two ovens. In the past three of the four units were 240-230V single phase systems with one of the ovens being a 3 phase 208V system (Delta).
Someone told the ME I’m working with that the three phase saves on your electrical...
