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System overshoot is the room temperature that is way over the set room temperature from residual heat from the exchanger into the room after it has shut off. System lag is when the temperature drops below the set point on the thermostat.

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What is the principle operation wound rotor induction motor?

Considering a split phase single phase motor: The basic motor has a run winding uses 2 poles (or some equivalent), so the motor is activated by the single phase at 180 degree times. This needs a spin to get it started. The direction is according to the direction of the starting spin. It is an induction motor, meaning the rotor has shorting bars. The stator field is connectd to the supply, and induces the required magnetic field in the rotor by transformer action, as for other induction motors. The starting circuit has the purpose of getting the motor to spin up to sufficient speed for the run winding to take over. The rotation needs some sort of flywheel (inertial) action to carry it through the periods of zero magnetic reaction. It might use a rotor with a commutator for starting, with a centrifugal device that shorts the rotor once the speed is sufficient, so it converts to an induction motor. This method is not used much nowadays. It can have high starting torque for use with compressors for example. A common approach is to have a second field winding for starting, with poles at 90 degrees to the run winding, so there are four (or equivalent) poles. This is a two phase motor, with a separate field winding for each phase. It can be used as a 2 phase motor with the phases separated by 90 degrees. The second phase is derived from the supply using a capacitor or inductor to cause the current to lead or lag by approximately 90 degrees. The inductor type might use the different inductance of the two windings to get some current separation, and so the starting torque might be lower as this is less than 90 degrees. These were popular because capacitors were expensive. The capacitor type has a capacitor in series with the start winding, and is the most likely type nowadays. Once the rotor is up to speed the start winding can be disconnected by a centrifugal or current operated switch. Some motors run with both windings continuously connected. Another principle now out of favour because of efficiency issues is used on small motors like fans. It is called a shaded pole motor. Here a special shading pole, part of each stator field pole, is fitted with a shorting winding which causes the field to shift as it builds up on each half cycle, so there is a flick in the correct rotational direction. This has low starting torque.


Related Questions

What is difference between system overshoot and system lag is called?

The difference between system overshoot and system lag is called system oscillation. System overshoot refers to a transient phenomenon where the system response temporarily exceeds the desired setpoint before stabilizing. System lag, on the other hand, refers to the delay or time taken for a system to respond to a change in the input.


The different between system overshoot and system lag is called?

System swing


What is the difference between an inside lag and an outside lag?

Inside lag is the time to implement (pass) a policy, while outside lag is the time it needs to take effect.


What is S-P lag time?

the difference between the arrival of the p-wave and s-wave


Why is the lag time difference important?

The lag time difference is important because it can impact communication and decision-making in real-time systems. A shorter lag time allows for quicker responses and more efficient operations, while a longer lag time can introduce delays and reduce the effectiveness of the system. Minimizing the lag time difference can help improve system performance and overall user experience.


What are the differences between a lag bolt and a lag screw, and how do they impact their respective applications?

The main difference between a lag bolt and a lag screw is their heads. A lag bolt has a larger head and is typically used with a nut, while a lag screw has a smaller head and is screwed directly into the material. This difference impacts their applications as lag bolts are often used for heavy-duty applications where a strong connection is needed, while lag screws are used for lighter-duty applications where a flush finish is desired.


What is S P lag time?

the difference between the arrival of the p-wave and s-wave


What is the every day use for an anti lag system?

The everyday use for an anti-lag system is to feed air to the exhaust system. The anit-lag system is used to keep the turbocharger spinning when the engine is not delivering enough exhaust gas.


What is the best recording system for no lag in minecraft?

There is none. Lag is produced from your own computer, not recording systems.


MDL vs ADL fuses?

The difference between MDL fuses and ADL fuses are that MDL fuses are a slow blow fuse with a long time lag. ADL fuses on the other hand, are normal blow fuses with a medium time lag.


Does the lag time get shorter or longer the further you get from the epicenter?

The lag time between the arrival of P-waves and S-waves generally gets longer the further you are from the earthquake's epicenter. P-waves travel faster than S-waves, so the time difference between their arrivals increases with distance.


What does lag or delay mean?

Lag or delay refers to a noticeable time gap between an action and its corresponding response in a system, such as in online gaming or video streaming. This delay can be caused by various factors, including network congestion, processing speed, or distance between devices. Minimizing lag is important for smooth and responsive user experiences.