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What is the purpose of open circuit test and short circuit test of a transformer?
An open-circuit test is done with the transformer running at its rated voltage but with no load. This measures the power lost in the magnetic core. (IR Losses) A short-circuit test is done with the transformer running at its full rated current in all windings but at a low voltage. The secondary is shorted and the primary voltage is adjusted to give the rated current. This measures the power lost in the copper windings. (Copper losses)
What is the difference between lap windings and wave windings?
Lap windings has four current paths, the same as the number of the field poles, while the Wave windings has only two paths, regardless of the number of poles. Lap windings are also used for applications requiring lower voltages at higher currents, while Wave windings are used for applications requiring higher voltages at lower currents
What is parallel path in dc machine?
This describes the way the machine's armature conductors are connected relative to each other and to the number of poles. The two basic ways of connecting these conductors are called 'lap' and 'wave', but it gets more complicated, because these, in turn, can be connected 'simplex', 'duplex', 'triplex', etc.For lap windings, if there are p poles, then for:simplex: pduplex: 2ptriplex: 3petc.For wave windings, the number of parallel paths are:simplex: 1 x 2duplex: 2 x 2triplex: 3x 2etc.So, for a triplex lap winding machine with six poles, the number of parallel paths will be: 3p =3 x 6 = 18 parallel paths.
If there are four appliances connected to a single power source in series then the number of current paths is equal to .?
the answer is 1.. either 1 or 3 not sure. its deffinatly not 2 or 4 its deffinatly 1 XD
How many paths can a current take in a parallel circuit?
At least two.
What are apparent polar wander paths?
The paths that the magnetic poles wander
What is the phone number of the Old Paths Tract Society in Shoals Indiana?
The phone number of the Old Paths Tract Society is: 812-247-2560.
A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field What is the ratio of the radii of their circular paths?
42.8
What is the purpose of open circuit test and short circuit test of a transformer?
An open-circuit test is done with the transformer running at its rated voltage but with no load. This measures the power lost in the magnetic core. (IR Losses) A short-circuit test is done with the transformer running at its full rated current in all windings but at a low voltage. The secondary is shorted and the primary voltage is adjusted to give the rated current. This measures the power lost in the copper windings. (Copper losses)
Why will a magnet placed in front of a tele vision picture tube distort the picture?
Moving Electrons in the TV set are deflected from their paths by magnetic fields
Why will a magnet placed in front of a tele- vision picture tube distort the picture?
Moving Electrons in the TV set are deflected from their paths by magnetic fields
Is speed the processing performance that is effected by the number of processing paths?
The processing performance that is affected by the number of processing paths is called cores. Processing, broadly defined, is the manipulation of data within a computer.
What is the maximum number of communication paths for a team of 20 people?
190
How does RIP perform load balancing?
by defining a number of parallel paths to a single destination by sending data across a number of equal cost paths by using the hop count as the metric for path selection
What effect has the number of armature paths upon the current carrying ability of a generator?
What effect has the number of armature paths upon the current-carrying ability of a generator?
How magnetic reversal happened?
The Earth's magnetic field is created by electric currents flowing roughly parallel to the Equator. There is not necessarily just the one electrical path, and what we see is the net result of several paths. It follows that if some of the paths are more convoluted that others, the apparent Pole will move accordingly. At the moment in the South Atlantic there is an area that appears to be reversing its polarity. There is little firm data as to the time a reversal takes. The Earth's magnetic field seems to protect the Earth from a flow of charged particles, or rather, it concentrates them in polar regions.
What effect has the number of armature paths upon the current carrying ability of generator?
What effect has the number of armature paths upon the current-carrying ability of a generator?
