Reverse 240V Motor - Electric motors & generators engineering
2009年9月13日 · The motor was originally used to drive a table saw (which is what I am trying to use it for. I tried Bill's suggestion but unfortunately I have continuity betwee all terminals. The motor is working as wired and has a centrifugal switch (I can hear it operate) There are 5 terminals. Two at the top of the panel (both marked A)and three at the bottom.
Reverse 240V Motor - Electric motors & generators engineering
2009年9月13日 · I've had a look for your motor's connections and I have one which is close but not an exact match. It's close enough to work out what's going on, but the way the centrifugal switch is implemented muddies the water a little. The winding colours in your motor appear to be consistent with Brooks standard wiring code: Run winding - red and black pair.
powering a 480v ac drive from 240v - Electric motors & generators ...
2008年10月23日 · For a 240V motor and drive, the voltage doubler has to boost the 170VDC from the 120VAC rectifier to 340VDC; not too much of a problem for components. But for a 440V motor, the voltage into the VFD needs to be at least 622VDC and if you start with 240VAC input, it is almost 680VDC; problematic for the components and wiring you will need to ...
240v Motor in 480V System - Electric motors & generators …
2013年2月17日 · Hi, I have an old industrial thermal shock chamber that runs on 3 phase 480 volts. One of it's condensor cooling fan motors went bad and the exact motor is obsolete so I can't find an exact replacement. Nameplate Info: Magnetek Model DA2G097N 2 phase 480 volts, .9amps, 1550 RPM, 1/15HP, 60hz...
Is the motor 240v delta or wye? Or does it matter?? - Eng-Tips
2008年8月3日 · If a motor says 240V, that means 240V phase to phase. If you have a 240V 3 phase system, it is 240V phase to phase. That's all you need to know. The phase to ground voltage reference of your supply is relevant to a number of other issues, but the connection to a 3 phase motor is NOT one of them.
Rewiring 120/240V motor to reverse rotation - Electric motors ...
2019年12月18日 · A single phase, two pole, motor needs all the help that it can get to start. A typical "Capacitor Start, Capacitor Run" motor uses two capacitors to start and one capacitor to run. A smaller value of capacitor is used for running as is used for starting. Rather than two capacitors, this motor may be using two start windings and one capacitor.
Effect of lower ac voltage on motor - Electric motors & generators ...
2003年4月2日 · If the motor is saturating, the power factor will crash, so you would observe a power factor well below the usual or nameplate values. FYI- I have experienced motor saturation at high voltages as you mentioned- we had a NEMA class B motor in a typically class C application, and were operating it with 111% terminal voltage.
240V Motor Rating Explanation - Electric motors & generators
2009年7月13日 · If the motor is less than 100% loaded it will probably work well on 208 Volts as many motors do. Your options are to look for a dual rated, 230/208 Volt motor, look for a 200 volt motor, or reconnect the 230 Volt motor for 120 Volts. If the motor is actually rated for 240 Volts, suspect offshore substandard construction. Bill-----
Difficulties with motor overheating - Electric motors ... - Eng-Tips
2003年2月8日 · I am trying to make the same controller circuit robust and flexible enough to be used on 110V with a 110V motor, or 240V with a 240V motor. My concern was that the harmonics you mentioned as a byproduct of chopping the sine wave to get variable speed, are being lost in heat in the windings due to poor snubber design on my part, or some ...
Please confirm my drawing of a 240V to 120V wiring conversion
2023年3月31日 · have the position of all for cams. So, I'm trying to work backwards from the motor, through the U1, U2, Z1, Z2, V1, V2 connection block to the switch to 120V. First problem I don't know what the motor looks like inside, i.e. connection, 3 winding or 4, etc. I want to know that. I'll add the motor plate to see if that adds any info.