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- Q: i was told by ford service that this was normal after 9 years when i purchased the car i was not informed of this what can i do about it
- parts do eventually break from wear and tear.. 9 years is a long time. the motor mounts im a bit shock thou. should last longer than 50k but then again it's 9 years.
- Q: I have a 1995 GMC Safari. The AC works intermittently and I think it is the blower resistor for the motor. Today it was working, but there was steam or smoke coming out of the vents. Could this be the blower motor going bad, or part of the resistor problem?
- Mitchell OnDemand tells me: Disconnect unfavorable battery cable. eliminate bigger device panel conceal. Unclip air flow duct. Unclip and eliminate blower motor conceal. eliminate blower motor screws, disconnect electric connectors. yet, it additionally says the hard artwork time is 7.8 hours, so this isn't a exciting pastime. Sorry bud.
- Q: What's the difference between a three-phase AC motor and a DC motor?
- In general, the armature winding of the three-phase AC motor is on the stator, and the armature winding of the direct current motor is on the rotor;
- Q: How large AC contactor and thermal relay should be used for the motor of 3KW? There are steps to calculate better.
- 1, rated current = power *2, or 6A2, the selection of AC contactor, the current domestic > = rated current, usually for a minimum of 9A. The reason is why recommend you go with CJX1 0922 or CJX2 0911 9A.3 、 thermal relay is usually a current range, rated current included in the range, preferably near the middle, which is ideal.Selection of domestic products, circuit breakers, contactors and other appropriate amplification, because the quality is not reassuring.
- Q: When an AC motor overheats badly, what is generally the first point or two that it will fail at? And what will be required to remedy the problem?(I see alot of carbonization of the coils in various places.)'m working on bringing an old single phase 120 V, 12 A motor back into operation but I'm a bit new to motor theory and many other things under the sun.I pulled the motor off the table saw it came from, cleaned it up, realigned the extremely misaligned rotor with the stator so it turns easily again BUT it still isn't working, it just sits there and hums it's terrible hum. So obviously the alignment is not the current cause of the motors inability to operate.Thanks for your help!
- First of all, what sort of motor is it? There are several that will usually be found running from single phase AC. Heres how you can identify them: If there are brushes/commutator then it is a series wound DC motor (a 'universal' motor, pretty common in lots of small appliances) If the rotor looks like a solid piece of metal, or perhaps appears to consist of only iron laminations, then it is an induction motor of some form: What does the stator look like? How many 'poles'? Does each pole appear to have a smaller pole near it, with a shorted copper strap around it If so it is a shaded pole motor or, how many electrical connections does the stator have, if there are two, it is probably a shaded pole motor An 'ordinary' single phase induction motor will have at least two (electrically) seperate windings on the stator, one of which will usually have a capacitor in series with it, or is switched on only to start the motor. So if there are capacitors or multiple connections, it is probably a regular induction machine. If the rotor is a permenant magnet it would be a synchronous machine (unlikely, would require a box of control electronics to run in anycase) Have a look at what sort of motor it is so we can help you more, Its probably a universal motor...
- Q: Is it possible that i could start a fire or something? I took an old plug and connecting the motor wires to it, then i hooked the plug to the mains socket, it starts quite a big spark when it turns on, but should it be safe? even if the plug is well covered in its insulation?
- You can always connect the motor to the mains, but ONLY through a AC Motor Starter of proper rating matching the motor. Ordinary switches and plug tops are not designed to handle high inductive loads. Since the motor is an inductive load, switching it on with an ordinary switch or plug will definitely create a spark. The spark is caused due to arcing between the contacts (due to back emf or inductive kickback) can be a potential shock hazard to the user. If the spark latches on to something combustible, then there is also a fire hazard. If you use it regularly, the spark will erode the contacts leading to failure of switch/plug So use a properly rated AC Motor Starter which is designed to avoid the above problem. An additional bonus is that the starter will have a thermal relay which will protect your motor and electrical wiring in case of overload due to load, bearing failure, rotor jam etc.
- Q: When a small AC motor is operating at rated load from 115V, 60 cycle source, it takes 287 watts at a lagging power factor of 0.6. A. Calculate line current B. What should be the capacitance of the capacitor connected in parallel with the motor that will make the power factor unity? C. Determine the line current under this condition.
- A. Power (287W) = V(115) x I x Cos phi (.6) I (amps) = P divided by V x cos phi = 287 / 115x.6 = 4.16 amps B. I will post later C. when you improve the power factor to 1 I (amps) = P divided by V x cos phi = 287 / 115x1 = 2.49 amps
- Q: If i hook up a Vacum motor to a car battery will it rum or blow out?
- Most vacuums use motors made by Amtec-Lamb. They are brush type motors and will run on AC or DC. (the only motors that require AC only are capacitor or induction start types. And not used in vacuums). The motor you have will probably run very slow and not create any vacuum.
- Q: I know the brushed are less magnetic interfered, higher efficient, etc. But, how the DC and the AC of the brushed type different? Sincerely.
- AC motors use slip rings and brushes . AC current is changing direction at 60Hz. The slip rings maintain electrical contact with the coil while allowing the coil to rotate. Slip rings to do not provide any mechanical switching of the conductor path (wiring) DC motors use a communtator and brushes. DC current is unidirectional, alway flows in the same direction. The commutator also allows the coil to rotate while maintaining electrical connection but with an important difference. A commutator will perform switching based upon the angle of rotation. A communtator is a series of individual copper strip pairs. Where each individual strip in a pair is connected to one end of a coil. The commutator strips are electrically isolated from one another. As the coil rotates the commutators conductive strips pass under the brushes. DC current is applied to the coil in one direction and as the coil winding of the motor rotates the communtator bars (strips) connect to pass DC current in the opposite direction in the coil. In essence a commutator causes the DC current to switch back on forth in the motor winding of the armature(shaft). Thus by defintion The DC motor has AC in its armature windings when the motor is running. The frequency of this AC is a function of RPM and the number of poles....
- Q: Have 2 separate but identical furnaces, one Tappan, one Frigidaire. The Tappan blower motor runs constant in cool setting. Blower AND flue fan run constant in heat or off setting, or when thermostat is completely removed. Circuit board flashes once signaling open limit switch or external load on quot;Wquot; (? No external load that I know of) Have replaced blower, flue, and rollout limit switches to no effect. Frigidaire model blower won't shut off. Circuit board doesn't flash a trouble signal. New thermostats and cleaned filters and ducts on both. Have tried to talk to anyone at Frigidaire/Electrolux/Tappan, but apparently no human beings are employed there
- Frigidaire Furnaces
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Worm gear units
- Ref Price:
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