Siemens 1PQ Series AC Motor

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Siemens 1PQ Series AC Motor

Q:Hey guys, my AC tries to start outside it seems, but then i hear a big BEENG sound for like 4 seconds (as if the AC tries to start). Then it stops. I have a digital thermostat and its showing all 8888. I tried to stop the circuit breaker and restart it to no avail. It's the unit outside that seems to be the problem.ANy clue what's going on here and how much it will take to fix it?: could be all that is wrong is your capacitor has gone bad...these give the compressor and the fan motor a boost when starting...each item can have its own capacitor or they can be both connected to a dual capacitor...you might also need to put a hard start kit on your compressor...a spp-6 hard start added to the run capacitor will give your capacitor a much larger boost at start up...they are easy to install with one lead going to each side of the compressor capacitor or on a dual capacitor one lead will go on the c or common terminal and the other lead will go to the h or herm terminal...you can bleed a capacitor by taking a screwdriver with a good insulated handle and using the metal part of the screwdriver just touch it to both capacitor terminals at one time...be sure power is off unit before attempting any repairs...

Q:also when working in generator mode, what type of current is generated ac or dc???: Good question. Permanent magnet synchronous motors are AC machines that use PMs. These machines perform like true DC machines in that the torque is directly proportional to the current; however, the currents are either trapezoidal or sinusoidal. Calling these machines a brushlees machine is a misnomer, but it is done often. Now a true brushless DC motor uses DC currents.

Q:the motor was connected to three phase source but now I want to connect it to the single phase source how can I make this: 1] If you connect the two lines of a single phase power feed to two of the leads on a 3 phase motor it will not run and will burn out. 2] Your ONLY choice is to make 3 phase. 3] You can do that two ways; one is to get a VFD

Q:I looked up blower motors for my 99 Jeep Grand Cherokee online and they have a few VERY different ones:Crown Left Blower Motor, Dorman AC blower motor, etc. Is there not just ONE blower motor? How do I best go about purchasing these correct parts online without having to shell out so much dough?!: Go to a local car parts place and pick their middle brand. if that still does nothing for you

Q:I'm trying an experiment, I want to wire a AC or DC motor to a light fixture and manually rotate the shaft which extends from the motor to generate electricity to the light bulb 60W or bigger.Can it be done, If so, Which type motor is recommend? Ac or Dc: it will be difficult to hand turn any motor fast enough to illuminate a bulb that large. You could put a volt meter on the motor while you turn it to see how many volts you get. You can also drive one motor with another motor, just to see what the best voltage possible is. A DC motor will generate DC voltage, and the DC voltage will likely be small - approx 12 volts or less. If you spin such a motor fast enough to generate 120 volts, it will self-destruct, because it's spinning ten times faster than it's designed. There will also be inefficiencies, so you will only get part of the electric energy out. You might want to try a smaller bulb, like a flashlight bulb.

Q:Regarding electric motors with armatures and commutators and all that. With a split-ring commutator, it switches the direction of the current in a DC motor so that the armature can make full revolutions. So, if you take out the split-ring commutator, does that turn it into AC? And AC, by definition, changes current direction every half-turn, so why wouldn't AC make full revolutions too? Confusing..: yes, split ring makes it AC and half-turn refers to when you get to half a turn now the half of the ring that was connected to positive is going to be connected to negative so a switch occurs every half-turn, not actual physical turning of the part. Inside an AC motor, there is a coil and a magnetic field that turns it and it is very much the reverse of half ring. If you take out the half ring nothing can physically turn, but of course the force to turn is still there. You sound badly confused about it, you have to look at Lorentz force on a wire in a magnetic field, and you will see how depending on the direction of current, the wire is pushed up or down, because it is connected in a loop, it goes in a circle, half-way through, if the current direction doesn't change it will want to go back the opposite direction that it came from, but since the direction of the current changes thanks to the half ring, it will continue going in the same direction and makes a full round.

Q:The existing capacitor is 35/3/370. Can I get a new one that is 35/5/370?What does the second number (5) stand for anyway?Thanks.: Be on gard not to succumb to this devlish seperation of you from your hard-erned money. Chances are you will be sold a fake capacitor. Unless it is the size of a lb coffee can and is tested for right action before buying, it can-not be trusted to perform what is required. I suspect you are trying a last gasp to fire the compressor,on your ac. If the unit is 10yrs+ old, forget it and shop for anew condensor unit. If you want that handeled quick, expect to pay a grandper 2 tons. or less tons.

Q:i have a 1750 rpm 1/2 hp electric AC motor. I know that decreasing the voltage to slow the motor speed down is bad because it will put a load on the motor and prematurely burn it up. Im using the motor to drive the agitator in a homemade insulation blowing machine, the agitator is moving ridiculously fast and would take an arm off!!! any ideas on how to slow it down???? pulley systems are almost out of the question because the driven gear is already almost as big as the machines' housing (in diameter). Cooling seems to be the main concern, i wonder if theres a way to lower the voltage and increase the cooling capacity......hmmm: you could try a adding a second smaller motor that drove a dedicated fan. Direct the air flow from that through the main motor and the flow of cooling air is independent of the main motors rpm. I don't know how fixed your design is. If design can be changed, worm drives can achieve fairy high speed step down ratios in small spaces.

Q:why do we use ac motors for tower crane?: 1) Availability of AC power 2) Clean, quiet, efficient 3) size does not matter!! AC motors are larger than a comparible hydraulic motor, but on a tower crane, SIZE DOES NOT MATTER.

Q:Can a DC series motor operated on AC supply?: If you put the AC supply on a rectifier, a zener and a giant cap it can. You would have to analyze all the components to make sure you are not overloading them. Without that no it won't work. A DC motor goes one direction with positive voltage and the other with negative. The AC supply goes both positive and negative. There is also the fact that AC voltage goes up to about 170 volts. That is probably more than your motor can handle.

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