Q:ac motor runs then stops loud hum?

It seems like the bearings are getting hot and causing the motor to seize up. Is there any place to oil the bearings? That may help

Q:Fuses are good. When the keys on and I test for voltage at the blower motor connector with ac on high and low it shows 12 v.. when off it shows nothing, resistor makes click nosies when turning different fan speeds, what does this mean.

If you get power to the blower motor in all speed ranges, then it is the blower motor that is bad. Make sure the connector is good not showing any signs of melting. It is possible the resistor pak is next since it needs the blower motor to help keep it cool. Since there is no air flow across the resistor or blower motor processor, it tends to get hot

Q:i want to control a 3-phase induction motor in FOC technique and achieve efficiency optimization by using dsp or FPGA in FOC technique

the cost of search engine optimization is the continuing technique of score a information superhighway website in the search engines in keeping with a collection of given keyword phrases analyze. also time-commemorated as search engine optimization search engine optimization, search engine optimization can take very much of time and endurance to yield the outcomes you're after. yet, once you benefit the rankings you've some thing promoting your information superhighway website 24/7 at the same time as you play or artwork on the different aspects of your corporation. And, it would want to promote in anytime zone in the international for you. it is the biggest sort of promoting besides. it is concentrated and brings the potentialities to you rather than you having to pass out and seek for buyers.

Q:Squirrel cageWound RotorSynchrosVariable reluctancePM rotorsynchronous condenserHybridsynchronous reluctanceswitched reluctance

Squirrel cage that are sold as components of products are manufactured to suit the requirements of a specific product. The motor characteristics can be expected to be generally similar to standard motors of a similar type nad size. The characteristics of other types of motors are discussed in general terms in text books etc., but specific information is probably available only from the manufacturers. Some manufacturers have very detailed product information online.

Q:Boyfriend is trying to repair our window AC unit. He says the problem is the fan motor (not the compressor, etc). It'll run and cool the room for a little while (20-30 minutes maybe) and then it will die. We can wait and turn it back on, but it always dies after a little while. What exactly could be wrong with the fan motor?

will you do us a favor, and post pictures of him changing it on this site. And tell him hes gotta do it without breaking any plastic parts and cant bend any of the coils when he takes the blades off both sides of the shaft. And no swearing when he puts the clip back on the squirrell cage. Actually you can unscrew and GENTLY move both coils out of the way, but dont bend the freon lines too much, just enough to get to the blades.

Q:cost of car AC motor blower?

Depends upon the year, make and model of the vehicle.

Q:I have a Comfort Maker Heating Air Conditioning system/furnace and I noticed that I am not getting air through the vents. The dampers are in the open position. I switched (at the thermostat) to AC/fan on quot;AUTOquot; for 20 minutes, and I noticed that the squirrel cage and the heat inducer/motor was running while it was set on AC. Is that supposed to happen. I also ran it on heat and same result w/absolute NO heat/flame coming out of the manifold.Also, the whole time the system was running, the outside air handler unit never commenced.

Sounds like a bad control board. The relay for the inducer motor is on that board. If the board shorts many will turn the inducer motor on as a safety. No flame up on heat is another symptom, since the inducer must be off when you call for heat. If the board is bad no A/C is also a symptom.

Q:All I want to do is run an AC electric motor off a battery :/

no that wouldn't work. A tri-state hex inverter is used to make digital 1 into 0 and 0 into 1, and since dc current and voltage has a constant amplitude you would get a constant amplitude. You could just get a power inverter or try building the circuit at this site

Q:It's a 1kW single phase AC pump motor with a 100v supply. This is for a theory question btw. :)

usa a speed controller. 1 kilowatt would cause a lot of heat in a potentiometer.

Q:I'm building an electric go kart and I'm planning on using a 36v 1000w motor and I was told that overvolting it by 12 volts would increase the RPM's, but then what would I be looking at in terms of it lasting.

Assuming it is a 1.0 service factor and the type is a series motor, you would get right at 1/3 more RPM depending on the load. Motors being so different, some like a little high voltage some like low voltage, about the only way to really know the current draw is to measure it. I would not allow it to run anymore than 10% over rated current. Next is the quality of the motor, some AC motors ran off VFDS run at higher speeds than rated, but again current and load will have a huge effect. But back to your extra 12 volts, the internal components are designed to withstand a certain RPM. However some motors are built to the bare minimum design, others are built to withstand some overload. It's a big jump, but again a series DC motor is load controlled, we don't know the load, and only by measuring it will we. I would say it the chances are the motor lasting is going to go down by the amount of the over voltage. I would suggest you use some type of mechanical transmission to increase the wheel speed which is what I assume you are after. Again this creates different loads, so find a DC amp meter so you know where you are at, and mount it on the kart, a volt meter would be nice also.. A larger driver pulley[or gear] on the motor shaft and a smaller driven pulley [or gear} will give you more RPM at the driven pulley. Just like an automobile, there are transmissions to control the RPMS of the engine, at various speeds along with torque at various speeds. If you go to a bearing supply store, they will have a line of variable adjustable pulleys that can be adjusted in or out to increase or decrease the diameter, you might find a device like that very helpful. Direct drive is smoother and dependent again on the motor, would be a great drive train but you are talking a very sophisticated and expensive motor and controller.