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This is a no load test and so it cannot be performed on series machine
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∙ 12y ago
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Why does the field winding of a series dc machine has less number of turns than that of a dc shunt machine?
The series winding takes the full load current of the generator. So it require only a few turns to produce the required magnetic field and so the resistance is lower.
What are equalizer rings used for?
An equalizer, or equalizer connection, connects two or more generators operating in parallel at a point where the armature and series-field leads join (see Fig. 7.13), thusconnecting the armatures in multiple and the series coils in multiple so that the load will divide between the generators in proportion to their capacities. The arrangement of connections to a switchboard (Westinghouse Electric Corp.) is illustrated in Fig. 7.14. Consider, for example, two overcompound-wound machines operating in parallel without an equalizer. If for some reason there is a light increase in the speed of one machine, it will take more than its share of load. The increased current flowing through its series field will strengthen the magnetism, raise the voltage, and cause the machine to carry a still greater amount until it carries the entire load. When equalizers are used, the current flowing through each series coil is inversely proportional to the resistance of the series-coil circuit and is independent of the load on any machine; consequently, an increase of voltage on one machine builds up the voltage of the other at the same time, so that the first machine cannot take all the load but will continue to share it in proper proportion with the other generators
How can you rotate the dc series motor in both direction?
in any dc machine changing the polarity of the field will change its direction. here, in series motor, the field is in series with the armature, to which we feed the supply. hence, change the feeding polarity.
What is interpole winding in DC machine?
For a D.C motor it is the field windings which must always be in series with the armature windings.
What field setting for a dc shunt motor wired in series on high voltage?
A shunt dc motor has quite different characteristics from a series motor. Wired in series, the same current passes through the armature and the field winding and it is most unlikely that a shunt motor would have a field winding that is suitable for this. Therefore a shunt motor cannot be wired as a series motor in general because its field winding is designed for only a small current.
Why swinburne's test cannot perform on series machines?
This is a no load test and so it cannot be performed on series machine
When did The Incredible Machine - series - happen?
The Incredible Machine - series - happened in 360.
Can someone can do kamehameha in a real live?
No, the kamehameha is a fictional energy attack from the Dragon Ball series. It cannot be performed in real life.
How much for the wooden cabinet domestic rotary electric sewing machine series 153?
I find a wooden cabinet for a domestic rotary machine series 153?
What simple machine is a locksmith?
I'm assuming that you mean what machine do locksmith's use, a very common machine used is the Protech series.
Fax machine that operates on 120V and it say max wattage is 170W Can you connect two machines in series or one bulb of 170W in series with this machine to 220V outlet?
Connecting a machine in series with a bulb to try to use it on a higher voltage is inadvisable. The machine will have, at least in part, an inductive load, which will not equate to the purely resistive load of a bulb.
What is the geometric series of 32757?
A single number cannot define a series.
Which cartoon series had a pelican used as a washing-machine?
The Flintstones .
What is the name for the machine used to mass produce vehicles?
It is not one machine, but a series of machines, called an assembly line.
How do you find series if mode range median mean are given?
You cannot, unless there are very few numbers in the series.You cannot, unless there are very few numbers in the series.You cannot, unless there are very few numbers in the series.You cannot, unless there are very few numbers in the series.
What type of motor used in drill machine?
AC Series motors
What type of motor is used in drilling machine?
AC Series motors
