Q:Could someone tell me what correlation between the slip (speed and frequency) and an AC motor, please?And is this relationship identical for every AC motor no matter the motor is brushless motor or SR motor? If I change the slip of an electric motor, what is also changed in this motor? current? torque?Are there any examples to say why and how to change the slip of a motor? Many thanks

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Q:The original, and two replacement, fan motors in the outside (compresser) unit of my Miller central air conditioner system all made a loud noise when wet. At first, I thought it was a bad motor, but a replacement didn't help for long. The second replacement worked a day, but the next day was very noisy.I finally traced the problem to one of design. The motor is open in the bottom. When it rains, water hits the fan under the motor and gets splashed up and into the motor. When there is water in the motor, it gets extremely noisy, sounding like a diesel truck motor.There is no question that this is the problem. On a dry day, when the motor is quiet, if I spray water up into the motor (yes, I switch it off first) and then start up the unit, the motor gets noisy.Can I simply replace the motor with a sealed unit of the same power, shaft size, RPM and rotation and solve my problem?Has anyone ever seen this problem before? Is there an easier fix?

yes i have seen this problem and it was because the motor wasnt the proper motor for the unit.. nearly all condenser fan motors are totally enclosed..or on some old units if the motor had openings on the bottom of the motor there should have been a water slinger that was larger in diameter than the motor to prevent water from being blown or splashed into motor....the easiest fix is to buy a water slinger and install it between your fan blade and your motor...

Q:Why do motors need capacitance when they start?

A positive reverse circuit. The switch hits the top. "Yes" is to string the capacitor to the coil below. The switch "hit" below is the series of capacitors connected to the coil above. There is no need to consider the capacitor charging problem.

Q:AC servo motor why drive?

In addition, the servo controller does not have the ability of logic control, if need servo motor first slow turn, then turn fast, then to stop somewhere and then reverse, and so on, these signals are more responsible for the upper controller of the servo controller, such as PLC, such as motion controller.

Q:A 3 phase, 2 hp, 480 volt AC motor online? (case/price doesn't matter)

OKorder has a few 480 volt motors, but right now, only 1 HP, 10HP, and a few fractional HP. But keep an eye there, it changes frequently. The first reference also has a bunch. search google for 3 phase, 2 hp, 480 volt AC motor buy and you will find lots. .

Q:I have 2 dc motors running off a 12 volt battery charger. It works but the motors run very slow. What can I do to make them run faster. Can I use a power inverter to convert 110v, ac into 24v, dc?

Most converters won't handle the load of a motor. Find the load in amp.s, (It will be on the motor). Multiply the amps. x 12V. This will give you the running Watt.s. Multiply the Watt.s x 2 to get the minimum transformer size. (Motors need the extra capacity to start up). Buy a 120/12V. transformer of at least that capacity, and a 12V. rectifier bridge with minmum twice the motor running amp.s capacity. Buy a single pole light switch. Wire your 120V. power to the switch, and then to the line side of the transformer (According to Code please). The wire the transformer to the bridge. Wire the switch and thence to bridge to the motor. Given up the idea yet? Do be sure that there's a manual latch to get you out of your Secret Room in case your amateur lash-up fails.

Q:Im trying to power a hobby servo motor (HSR-5995TG ) from the wall using a standard 7.5V 1amp adapter... What do I need to power the motors sufficiently without frying the motors or myself?

This Servo Motor runs at 4.8-7.4 Volts DC, and uses between 0.35 and 4.5 Amps (!) of current depends on load (0.35 = no load, 4.5 Amp = stall). So you COULD run it with a standard off-the-shelf 6VDC 3 A brick power supply. - BUT - As far as I know, this servo motor is meant for pulse width modulation type of remote control receivers, and as such, you wouldn't just put plain DC on it, but run it with the intended 1.5 milliseconds pulses. But you probably know that... C. Anderson: Thanks for clarifying this.

Q:Will not having a functional blower motor affect anything aside from no heat/AC?

NO, It won't hurt anything. But you may just have a bad BLOWER RESISTOR. It's cheaper and easier to fix. It's screwed next to the blower and you can look at it to see if it's broken. Or you can just put the control on FRESH and get heat when you're moving.

Q:it is small powerful motor and light i wanna use it as a motor for my RC plane any help!!!

If your motor is universal,one with armature and commutator segments and carbon brushes,it can run on dc power, but, if it isn't, your motor won't run on dc power.

Q:Does anyone know the following,the starting and torque as awell as speed and load?and to be picky does anyone know them for a three phase AC motor?

Starting torque for both is about 250% or more of rated torque. For DC shunt motor, see curve in 2nd source. For ac, see NEMA curves in 3rd source under DESIGN A, B, C, D - FOR AC MOTORS Speed and power depend on motor you buy - check manufacturer catalogs. AC motors typically run a few % below following synchronos speeds: 1800, is most common, also 3600, 1200, 900 rpm. You can use the internet to look for catalogs and more info.