0
Why is there usually an air gap between armature of a solenoid and the stationary core?
Wiki User
∙ 9y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the advantage of having a rotating magnetic field alternator?
Advantages of Rotating Field with Stationary Armature1. Rotating field is comparatively light and can run with high speed.2. High voltage can be generate due to high speed and there is very little difficulty in providing high voltage on a stationary part than a moving part.3. It is easier to insulate armature coils for high pressure usually generated (6.6 to 11 kV). Since the stator is outside the rotor, so more space is available for greater insulation required for armature winding.4. Very little difficulty is experience in supplying the field magnet current as it is very low in comparison with the armature current
Why field winding work as stator and armature winding as rotor?
No, these can be switched depending on the requirements of the application. It is more practical to have the armature windings (since they will carry the full load current) as the stator for this will require larger wires and is also easier to cool if kept stationary. The field windings do not carry the full load current of the load so this requires smaller wires and smaller slip rings since this is the piece that will rotate.
What is the working principle of a DC shunt motor?
To ensure that the Lathe machine's motor working properly, DC motor starter is added in which it used to protect motor against damage from: • short-circuit, • long term overload, • excessive starting current, and yet to made the operating speed of motor easily to be control by operator. During starting, the motor is not turning, hence there is no internal voltage .The internal resistance is very low and thus the current flow through is very high. This condition may cause damage to the motor Hence, a staring resistor is added in which connect in series with the armature to limit the current flow until the internal voltage of motor is increasing to do the limiting. In order to prevent losses as the speed of the motor is build up; the starting resistor should be removed
Ac relay and DC relay?
what is the meaning of ac relay and dc relay EDIT: a DC relay is simply a coil and core that pulls on an armature. An AC relay usually needs a shaded-pole core (couple of copper loops) to prevent the armature from vibrating at 60 cycles or so. The core, also, is laminated steel like a transformer; so is the armature to help contain the magnetic field. You should not substitute a DC rated relay for an AC , but the reverse should be ok, if voltage and current ratings are the same.
How the solenoid become an electric generator?
A solenoid will never become an electrical generator. The two articles in the question are two different devices. A solenoid, is usually associated with an electrically operated valve. An electrical generator is used to produced a voltage output of a specific value and an amperage of a specific value. Combined amps and volts results in a wattage output. It is the wattage rating that generators are sized by.
What is solenoid?
A solenoid is a long cylindrical coil of wire consisting of a large number of turns bound together very tightly. A solenoid is usually used to produce a magnetic field to pull the armature of a relay, causing electrical contacts in the relay to open and/or close switching current flow.
Difference between Stationary and Stationery?
Stationary means that the item is fixed in one place. Stationery is paper, usually decorative, that is used for correspondence.
What is solinoid switch?
A solenoid is a long cylindrical coil of wire consisting of a large number of turns bound together very tightly. A solenoid is usually used to produce a magnetic field to pull the armature of a relay, causing electrical contacts in the relay to open and/or close switching current flow.
What is the advantage of having a rotating magnetic field alternator?
Advantages of Rotating Field with Stationary Armature1. Rotating field is comparatively light and can run with high speed.2. High voltage can be generate due to high speed and there is very little difficulty in providing high voltage on a stationary part than a moving part.3. It is easier to insulate armature coils for high pressure usually generated (6.6 to 11 kV). Since the stator is outside the rotor, so more space is available for greater insulation required for armature winding.4. Very little difficulty is experience in supplying the field magnet current as it is very low in comparison with the armature current
A coil of wire with an electric current in it?
A solenoid. An electromagnet is wire wrapped around a core of iron (usually). The wrapped wire itself is called the solenoid.
why starter motor armature over heat?
Usually caused by worn bearings.
Explain the working principle of shunt generator?
A shunt generator is a machine with a rotating set of coils of wire embedded in the iron core in its armature (the spinning part), and a 'commutator' and brushes that carry the current from the (spinning) windings on the armature to the stationary external electrical load. It also has a 'field' winding that creates a stationary magnetic field inside the machine, that the armature coils are spun in. As the windings spin, they cut the stationary field and generate an alternating voltage. As well as providing a moving connection to the coils, the commutator and brushes act like a switch, reversing the connections from the coils to the external circuit each time the waveform changes polarity from positive to negative and vice versa. This creates direct current in the external circuit and load. In a shunt generator, the field windings are connected in parallel with the armature ('shunt' is a common term for 'in parallel') and the field gets its power ('excitation') from the armature - the machine is 'self-excited'. A self-excited generator needs a small 'residual field' in the field's iron core so it can generate a small output from the armature when starting, which is fed to the field, boosting the armature output, which is fed to the field.... and so on, until the field iron core saturates with flux, and the field stops strengthening. Shunt generators are the 'workhorse of the small generator market - they are cheap and simple, have an output voltage that 'droops' a little with increasing load, and most shunt generators can safely be short-circuited - this takes the electrical energy away from the field, and the armature can usually develop only a small output current - not enough to damage it.
How do you open Solenoid?
Usually by applying a voltage to it.
Why field winding work as stator and armature winding as rotor?
No, these can be switched depending on the requirements of the application. It is more practical to have the armature windings (since they will carry the full load current) as the stator for this will require larger wires and is also easier to cool if kept stationary. The field windings do not carry the full load current of the load so this requires smaller wires and smaller slip rings since this is the piece that will rotate.
Having to touch starter solenoid with screw driver to start?
usually this means that your solenoid needs to be changed
What does diagnostic code p1776 mean on a 2002 chrysler 300m?
Solenoid switch valve latched in the low/reverse position. On a 300M it is usually a failed transmission solenoid pack.Solenoid switch valve latched in the low/reverse position. On a 300M it is usually a failed transmission solenoid pack.
What is stationary cycling that is typically performed by a group called?
The use of stationary exercise bicycles in a group is usually referred to as Spinning.
