Siemens Reducer
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- Q: I thought it was a short because my ac/heater would blow then the next time it wouldnt but would start up.. now it doesnt blow any air at all. im pretty sure it needs a new blower motor, does anyone know around how much that might cost? im going to call around tomorrow
- depend on the car some are very easy to do they are right under the dash and can be removed with out tearing too much apart then some cars you have to remove the whole dash could cost with parts and labor any where from $150 up to around $6-700 also depend on if you take it to a dealer or a independent shop
- Q: I want to know how rpm affects such application. And why it has to be considered.
- As a single parameter RPM of the motor is of no consequence. What is important is the speed of the final moving part or parts of the driven machine. The most commonly used motor is a 4-pole induction motor that runs at a little less than 1800 RPM on 60 Hz power or 1500 RPM on 50 Hz power. A drive train is selected to provide the machine speed that is suitable for the application. In a few cases, the motor can be directly connected without any speed change in the drive train. Some fans and pumps and other machines are designed to work with directly connected motors. In those cases, the available motor speeds must be considered. For AC motors, the available speeds are given by RPM = 120f/p where f is the 50 Hz or 60 Hz power frequency and p is the number of motor poles. The number of poles is an even number, with 2, 4, 6 pole motors being the most common motors with motors becoming progressively less common as the pole number increases. Motors with more poles tend to be available only in higher power ratings. Another level of consideration is whether the motor should run at a constant speed or be equipped with a variable speed control unit. Variable speed is a means of controlling an industrial process to provide: Smoother operation Acceleration control Different operating speed for each process recipe Compensation for changing process variables Slow operation for setup purposes A variable rate of production Accurate positioning Torque or tension control In some cases there are alternative means of controlling the process but variable speed may use less energy or be more convenient.
- Q: is it jus possible by altering d electrical connections
- An induction motor can be operated as a generator without rewiring. However it requires something external to the motor to supply magnetizing current. One way to supply the magnetizing current is to connect a capacitor across the motor terminals. The capacitor needs to be sized to suit the motor and the load.
- Q: Is it technicaly necesary to put resistor parallel to ac capaci2r when conected to motor compresor or ac motr? I ned answer on the effects to the motor being connected to it (and running).
- The resistor you refer to is a bleed resistor. it is a safety item to slowly bleed off the charge on the capacitor so that service technitians do not inadvertently electrocute themselves. Additionally many of these capacitors have enough charge on them to melt the internal connections to the capacitor if they are shorted. at a minimum this would destroy the capacitor and it could even cause the cap to burst. A bleed resistor (which is often internal to the capacitor) prevents that from occurring.
- Q: my existing 3 phase motor,15kw, 220 volts,six lead terminals labeled as Z,X,Y,U,V, and W respectively. i want to use it, though i know its rating will drop by 30% in terms of kw. my power source is single phase,220 volts. i want to know how to connect its lead terminals or will i need capacitors as starter and whats the ampacity of the capacitor.
- Hire some one to do it.
- Q: can you run a brushed ac motor on dc current?
- Brushed AC motors are in fact serial DC motors. So, the answer is YES, you can. But you must do some maths not to overload it so it burns out. And (as in AC) it will not be a reversible motor! (i.e. if you reverse the poles, it will still rotate in the same sense).
- Q: Im trying to power a hobby servo motor (HSR-5995TG ) from the wall using a standard 7.5V 1amp adapter... What do I need to power the motors sufficiently without frying the motors or myself?
- Your 1A supply isn't really sufficient for what this device can do. These little torque monsters will suck down 5.2A at lock/stall at your 7.5V supply voltage!!! This model doesn't approve of continuous duty use, either. It needs some cool down time between events. The HS-5995TG (no R) had an aluminum heat sink, and could probably tolerate more on time. Edit: Marianna -- wherever I've seen this particular motor, it has had its own onboard square wave generator system, and can be manually controlled with a potentiometer in lieu of using the Hitec programmer. You don't get to set points, etc., but at least you can get some use from it.
- Q: An electrical cabinet is cooled by a 18000 BTU air conditioner. The heat that is transfered from inside the cabinet to the outside of the cabinet PLUS the heat generated by the A/C system componets = to the total power consumed by the A/C system ?
- No, it most certainly does not. Some, hopefully most, of the electrical energy taken by the motor will be converted to mechanical energy. That's what a motor does. But, in the conversion process some of the energy, hopefully only a small amount, will be lost as heat.
- Q: Is the permanent magnet synchronous linear motor AC motor or direct current motor?
- Permanent magnet synchronous linear motor is AC motor, because no matter as a motor or generator stator winding, it is current in the AC, and its rotor (oscillator) with a permanent magnet, need no winding current.1. "permanent magnet" refers to the rotor of the motor (to the rotating motor) or to the mover (on the linear motor), there is a permanent magnet material.2. "synchronization" means that the speed of the motor (the rotating motor) or the speed of movement (for the linear motor) and the armature winding current through the current can maintain a strict proportion relationship. The frequency of direct current is 0, so you can judge immediately that it belongs to an AC motor when you see the word "synchronous" in the name of the motor!3. "straight line" refers to the motor part of the movement is done in a straight line movement, and the traditional motor rotor "spin" movement distinction.
- Q: I want to put a quot;dimmer switchquot; (like the kind you put instead of a light switch to control how much electricity the circuit gets) before an AC motor running on 120 volts. Basically, we needed a motor for a project and it has a switch already on it for 2 different speeds of 600rpm or 1200 rpm (It was from a rather large industrial fan). I need it to spin slower and i was wondering if it will damage the motor to give it less voltage with the variable switch, or if the motor will run at all.Thanks in advance
- I don't know about this specific motor, but in general AC motor speed is a function of the number of poles and the frequency. Thus lowering the voltage, by itself will not reduce the speed although you may see it moving slower because of the load. In these circumstances you are effectively slowing it down by overloading it and it will heat up accordingly. DC motors are a different beast and you can control their speed by voltage. Further, a dimmer switch does not reduce the peak voltage. What it does is chops off part of the AC waveform. Fundamentally, although this approach may do what you want, it is not a proper solution and I would not let it run unattended for any length of time. Also, keep a fire extinguisher handy.
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Siemens Reducer
- Ref Price:
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