Siemens EX Series AC Motor

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Siemens EX Series AC 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: I know over spinning most AC motors will turn them into AC generators. Is the same true of shaded pole motors?: Yes, it's an induction machine.

Q: Is there a minimum KW rating that these are required: Most motors have a fan attached to the shaft or fins on the ends of the rotor to move air through the motor or over its outer surface to remove the heat that is generated in the motor. With variable speed operation, the air movement may not be sufficient to keep the motor from overheating if the motor operates for too long a time at too low a speed. Since that can happen even when the load torque is less than or equal to rated torque, an overload relay that monitors the motor current may not be sufficient to protect the motor from overheating. Motors that are specifically designed for variable speed use often have larger fan blades, larger wire in the windings, more surface area exposed to air flow, more and higher quality iron in the core and other features to make the motor more efficient and to improve the cooling. Such motors may not need thermostats. The variable speed control unit can also be designed to monitor the speed vs. time as well as the current to provide electronic protection. Even with these motor and control design features, local regulations may require thermostats. The requirement may or may not be related to the kW rating. The regulations may be more strict for motors used where flammable or explosive materials are present.

Q: What's the difference between a three-phase AC motor and a DC motor?: Squirrel cage type AC motors are of small size, light weight, low price and long service life, which are opposite to the direct current motors;But the DC motor speed performance is good, AC motor is a little bit worse.

Q: I understand that a brush-less DC motor must have a controller which generates AC current to drive the unit. My question is; if i bypass the controller and connect the motor directly to a bridge rectifier, will I generate power at a reasonable efficiency.If I used a 24v brush-less DC motor, would I approximately produce power of 24v?Thanks for technical expertise!: There are 2 types of brushless motors. 1 is actually an AC motor, 3- phase,that is driven from an inverter from DC to AC. It is common in such as electric powered models, and varying the AC frequency is used to control speed. Such a motor might be used as an alternator to produce AC electricity. Then there is the brushless DC electronically commutated type motor, common in such as computer cooling fans. They cannot be used as a generator.

Q: I need to know what are the specifications that an AC Motor must have on its nameplate...and who says it (ISO,Nema, DIN...): The USA standard (motors rated in horsepower) is NEMA MG1 International Electrotechnical Commission (IEC) standard 60034 covers motors rated in kilowatts.

Q: ac not working new fan motor compressor kicks on fan wont turn?: relay. 65

Q: The purpose is to show a small scale (for the classroom) example of what would happen if something like a small battery operated fan were running on AC instead of DC. I would like to show the fan going in one direction, then change direction, as the current changes direction. Is this even possible? From my limited understanding, most items that use an AC source, but need DC power, have rectifiers to keep the current flow going in the same direction. I want to demonstrate what would happen if there was no rectifier.Thanks.: no longer sufficient information to respond to. Or in different words, it relies upon ... AC motor technologies is so quite stepped forward, it incredibly is often greater value-effective to run than DC. The assessment with the lighting fixtures fixtures won't artwork, it relies upon on the completed capability of the autos and the lighting fixtures fixtures. A 20 watt mini-lathe will value much less to run than a financial organization of one hundred watt lighting fixtures fixtures, and vice versa. And the place are you going to get the DC 220 volt from? I in no way heard of that for a compressor or lathe, are you particular it is DC? Does it say something like 50 Hz or 60 Hz, or does it have unmarried section or 3-section? those are all AC words. maximum DC autos are 12 V or 24 V. those I even have seen for 220 V are very small.

Q: can you connect a 1/4 hp ac motor directly to the output of ac from a windmill or turbine?: I imagine it can be connected, but the output of the ac motor will be determined by the output of the turbine at the time. If the turbine is under-supplying power, the motor will under-perform; if the turbine is oversupplying you risk the ac motor burning out. Referring to the specifications of the turbine will help determine if its a good idea to connect it directly. I believe most windmills are designed to limit rotational speeds for safety and durability reasons - so such turbines do tend to have an upper limit of sorts (and i think this can be manually changed at that - angle to the wind etc).

Q: hi guys asked something relating to an ac/ blower motor on another website i was wondering if you guys can check it out and give me answer:here is the link to the other website:: Even looking at the other site and the pictures isn't much help. Someone messed with the relays and there is not telling what is connected and what isn't. My suggestions is to go to a salvage yard, like Pull-a-Part and find a complete relay box and swap them out. You might even look at the wiring harness in the part car to see how it is supposed to be wired.

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