Siemens EX Series Motor

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Siemens EX Series Motor

Q: not asking for a inverter: Err, no, it's not all electricity - there are lots of different types of electricity - or perhaps I should say electrical currents, to be more precise. You have probably heard of the abbreviations A.C. and D.C. used in connection with electricity. They stand for alternating current and direct current. The former changes its flow direction at a rate of between 50 and 60 times per second (depending where you live in the world). The latter always sends the current 'one way' That's why you cannot run A.C. only devices from a D.C source. Moreover, trying to do it is highly likely to damage the device (at best); cause a serious fire (at worst) plus the possibility of an electrical shock, if the insulation fails due to the excessive heat being generated within the device. .

Q: Everything is wired correctly, can hear the relay kick on when power is on but motor will not start: I have to make a few assumptions here since additional information is necessary to try and help you. I assume this is a single phase induction motor. Second, based on the first assumption, the motor may be wound with just a simple auxiliary winding to start the motor spinning or it may have one or two capacitors attached to it for improved starting torque and running performance. Third, I assume the motor windings are good. If you the motor humming when you energize it, but it does not spin, you may have an open circuit to the auxiliary winding. Try turning the motor shaft in the direction you want it to spin. Does it spin for you? If yes, the centrifugal switch supplying the auxiliary winding may be bad. Check and replace it if necessary. If your motor has one of more capacitors mounted outside of the motor case, check and replace them as necessary. If your windings are good the motor should work. Hope this helps, Newton1Law

Q: how are the torques in ac motors controlled, is the relationship between torque and armature current still applies?? T= k(flux) Ia .... ? does this formula still applies in ac motors or only to dc?? please explain: The torque equation applies for DC motors and synchronous AC motors, but no induction motors.

Q: How large AC contactor and thermal relay should be used for the motor of 3KW? There are steps to calculate better.: 3KW motor rated current is about 6A. The bigger contactor can prolong the service life of CJX20-1210 (12A) 8-10A air thermal relay's role is to protect the motor so do not benefit too much 7-8A can protect the motor when a fault occurs.

Q: my uncle had a GENERAL ELECTRIC/MARS Motor mod: 5KC49WG507X and I don't know what it is...can any one help explain this to me?: Your uncle has a 1.5 hp motor that was originally intended for use with a pump or air handler. The thermal protection will shut down the motor if it is overloaded to the point where it overheats. The protection might reset automatically when the motor cools down, or it may have a reset button. A motor of that type typically sells for several hundred dollars. Don

Q: New blower motor on 7900 coleman gas furance will not turn my fan unless i push the fan with my finger to ge?: I presume the motor is an AC motor. It almost certainly uses a start capacitor to provide the push you are giving it with your finger. The capacitor itself may be bad, but it is even more common to have a bad start contact in the control circuit. The capacitor is only connected long enough to get the rotation going. The first source should help.

Q: What happens if I overdrive an AC motor while connected to the AC whether single phase or three(3) for the dif?: Both AC motors would not burn out by such action. But both coupling gears could damage during engagement. No overload occur in AC supply but motors could be ceased for a while.

Q: I had an HVAC tech check the AC units on a house just before I bought it. He said on one of them, the condenser fan motor is quot;locked upquot; (his words), well, I went up there to check things and the fan spins just fine, however the motor won't start. It won't start if I spin the fan with a stick either.He quoted me $425 to replace the motor, but I think I can do it myself. Is there a place that would sell me one?Also, the current motor in there is not the original one (The unit is an old 50YG500514 Carrier. It looks like someone replaced the fan motor before with an Emerson 1/4 hp motor. The wiring looks different. (I have another unit exactly like it that works fine, and that one has a GE motor).: in spite of if that's belt pushed, then the belt isn't taught adequate. in any different case attempt keeping apart the motor from the fan and activate the AC. purely the motor runs. you will desire to be waiting to decide what's what.

Q: why choke or du/dt filter is used with vvvf drive of ac. motors?: A okorder

Q: Comparison of AC motor and direct current motor: Disadvantages of DC motor1. direct current motor manufacturing is more expensive2. carbon brush

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