What is the purpose of the coils of wire inside the motor?

The purpose of an electric coil is to create a magnetic field, which becomes stronger with an increase in the number of turns. The strength of the magnetic field is proportional to the amount of current flowing through the field. By adding more current, the force of the magnetic field increases.

What does a stator do in a generator?

The stator provides a path for the continuously varying magnetic flux. The stator core is therefore constructed of thin sheets, or laminations, of magnetic steel. The steel, being an electrical conductor, would tend to short-circuit the voltage induced in it if it were solid.

What does the high impedance of the stator prevent?

The high impedance prevents the motor from producing a large amount of torque.

Why do generator coils burn?

Improper match between the electrical source and the coil rating is sometimes a cause for coil burn-out: Voltage Too High. The operating voltage should not be more than 10\% higher than the coil voltage rating. Excessive voltage causes excessive coil current which overheats the coil.

Does a generator use a coil?

Inside a generator There is a coil that is free to rotate between two magnets. The magnets are linked by a steel former and the coil is connected to wires using brushes. However, instead of a commutator, the generator uses slip rings.

How does a generator coil work?

A generator works by a magnetic field inducing a voltage into a coil of wire. This can be done by moving the magnet or by moving the coil – the effect is the same. The coil (or the magnet) needs to move in such a way that the coil continually passes through the magnetic field.

What are stator coils?

1. stator coil – mechanical device consisting of the stationary part of a motor or generator in or around which the rotor revolves. stator. electric motor – a motor that converts electricity to mechanical work.

How does the stator work?

The stator is the coil of wire housed inside the engine case. A magnet on a shaft spins within the stator, creating alternating current (AC). That current travels along fairly heavy gauge wire through the case and into the rectifier/regulator which converts it to DC power, and at a consistent output.

Why do we need generator protection?

The generators are normally connected to an electrical power system, hence any fault occurred in the power system should also be cleared from the generator as soon as possible otherwise it may create permanent damage in the generator. Generator protection is of both discriminative and non-discriminative type.

How does a generator cool itself?

Smaller generators are usually cooled by air while larger varieties are generally liquid-cooled. This system of cooling uses air circulation to bring the temperature down. In air-cooling systems, the engine takes cool air from the atmosphere and blows it internally across the different parts of the generator set.

What would happen if the stator core of a generator were solid?

If our stator core were made from one solid piece of steel, these currents (known as circulating currents or eddy currents) and the associated heat generated would be huge. So huge in fact that the generator core would quite conceivably melt down.

How does a DC motor control a stator coil?

The voltage fed into the stator coils is controlled by a DC motor controller. A current clamp meter measures the current that is fed into the stator coils. The stator coil is supplied with a constant current of 60 A for a duration of 60 seconds and then the current is turned off; this gives a step input of current.

How many batteries does a stator coil need?

The stator coils are powered by a bank of 4 12 V DC batteries connected in series. The voltage fed into the stator coils is controlled by a DC motor controller. A current clamp meter measures the current that is fed into the stator coils.

Why are stator cores laminated and insulated?

Simply stated a stator core is laminated and insulated in order to reduce induced circulating currents and associated heat down to a manageable level.