Q:How can I do this? My previous motor was only 1 speed. The new one is 3. I am assuming this my cause a conflict but Ive heard you dont have to use 3 speeds. But how exactly do I adjust this?

if you look at the instructions for the motor you just purchased it should show you what wires to hook up for low med and hi speeds. Most of these motors also tell you what wires to use for single speed use. If not then find what speed your motor was operating at and hook the new motor up to operate at approx the same rpm's.

Q:I need digital AC ammeter circuit please help to complete my project.

I guess that is what you are looking for. There isnt one ammeter per motor, there is one on each phase, or a selector switch to change between phases.

Q:AC or DC motors for rolling gate motors?

Roll gate, also known as "rolling door", is a lot of joint activities of the doors and pieces connected together, in a fixed slide, with the center of the scroll above the center of the rotating door up and down.Roll gate (gate) is suitable for commercial appearance, garage, shopping malls, hospitals, factories and mines, enterprises and other public places or houses.

Q:is it necessary to use both ac and dc motor in car??

dc that is what it is desighned for

Q:The fan only works on high, it started losing speeds one and three, now only four works

It is definitely the resistor most are located around the fan motor or ac/heater core.

Q:So I have a single phase 115volt 1/4 HP ac motor. It has L1 L2 and ground, I hook it up, make sure L1 hot, L2 neutral...when I turn power on my circuit breaker flips and nothing happens with the motor. The wires did get warm though! What could be the problem?

That 30 year old motor finally froze up. Call the ac repair to fix it.

Q:I want to bypass having to get 4 deep cycle batteries for my project. I need to power 2 24v 200w motors. I was considering a 2 cycle 1000w generator. I know I need an AC to DC converter, but what kind would I need in terms of stats. (Watts, volts and amps) would it just be better to go with the deep cycles?

MOTORS NEED AT LEAST 16,67A AT 24V GENERATOR REQUIRES ABLE TO PROVIDE BETWEEN 26.67Vac BUT NOT MORE THAN 30Vac ,PROVIDES CURRENT AT LEAST 16.67A OR HIGHER IS BETTER.. A FULL WAVE RECTIFIER RATED ANY BETWEEN 100V TO 400V , ANY CURRENT RATE BETWEEN 35A TO 50A IS GOOD ENOUGH, COST JUST $2 PIECE, MUST MOUNT IT WITH HEAT SINK.

Q:I was planning on building an electric car hopefully weighing around 500KG and i was looking at a three phase motor rated 52.3A at 400V and was wondering how to convert/invert the power from a single phase DC power from batteries, to a three phase AC power to run the motor, i have looked a inverters but they all say, that if you put a single phase power source into it you can only power a max of a 3Kw motor, so i was thinking if i could maybe use 2 inverters, not sure if thats possible or not, or if someone has had experience in this and know a way of doing this as i cant get mains power to a moving car, anyway if anyone knows how to do this please let me know, i would be so grateful as i have spent at least 24+ hours trying to research this.

you have selected an electric motor used for a diesel electric locomotive. they don't convert battery power to make 3 phase 400 volts. instead they use a diesel engine to run an electric generator. 52.3 amps at 400 volts would require 1740 amps from a 12 volt source. your car would need 10 giant 200 amp-hour batteries, that would be about 1000 kg of weight by itself. the only practical way to get 3 phase power from a DC source is with a motor-generator. think about it, using a motor to rotate a generator to run a motor is highly inefficient power conversion. you need to stick with a DC motor, one of reasonable size, that can be powered by a battery bank that weighs in at under half the total weight of the vehicle. 5 KW single phase is about the maximum power that can be generated by practical inverters. but you would not be able to run a 5 KW motor from that, because inverters have no surge capacity to deliver the start up motor current. that is another reason you need to stick with a DC only power system.

Q:I sucked at physics in undergrad and I suck at physics even more now. Thanks.

NO! no longer even on the top of the worldwide! Revelation 7:a million (Infallible King James version!) And after those issues I observed 4 angels status on the 4 CORNERS of the earth, keeping the 4 winds of the earth, that the wind shouldn't blow on earth, nor on the sea, nor on any tree. plenty for Christian technological understanding…!

Q:I'm writing a persuasive essay for school and I need to know how the electric motor by Michael Faraday changed the world during the Industrial Revolution, yet still has a great impact on today's world. I know that without it transportation wouldn't be the same, but what are some other reasons it was/is so useful? (convenience, safety, etc.) Thanks!! :)

When the electric motor Faraday invented is turned into a turbine; run by wind, water, steam, etc. it becomes a generator and produces alternating current. Thus his electrical motor design has a two-fold purpose. Many products have motors running on the same principle today - vacuum cleaners, power saws and so on - even heating and air conditioning units which force air through buildings and homes.