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What is airgap in dc macines?
The airgap in DC machines refers to the physical space between the stator and rotor (or armature) components. This gap is crucial for the operation of the machine, as it affects the magnetic field and the overall efficiency of the motor or generator. A properly designed airgap minimizes losses and ensures effective magnetic coupling, while an excessively large airgap can lead to reduced performance and increased energy losses.
Stihl fs 160 brushcutter flywheel airgap?
.005 inches
What is the srongest firewall?
An airgap. If you're not connected to the internet, you are very unlikely to be hacked.
What is the r rating of white styrofoam insulation?
3/4" = R2. Two layers with a 3/4" airgap pumps it up to a R6.
You have a gm 350 crate engine that had 260 hp you put an edelbrock airgap intake and a edelbrock 750 carb with a kn air filter how much horsepower will you have?
274
Why the no load current is more in an induction motor because of high reluctance airgap?
due to high reluctance air gap magnetisation current is very high as a result no load current is more
What is the difference between space harmonics and time harmonics?
Fields for which the time variation is sinusoidal are called time-harmonic fields. Space hormonics means variation of a quantity in space like in induction motor rmf is present in the airgap (space) and few hormonic components also present in airgap (space) those are said to be space hormonics
Why soft iron is placed in moving coil galvanometer?
1. to intensify the magnetic field by reducing the length of airgap across which the magnetic flux has to pass; 2. to give a radial magnetic flux of uniform density, thereby enabling the scale to be uniformly divided.
What happens to the speed of an induction motor if the supply frequency is increased?
The supply frequency determines the synchronous speed of the machine -i.e. the speed of the naturally-rotating field within the airgap. As motors typically run around 5% below this speed, the rotor's speed would increase.
Why is my dishwasher draining out of the drain air gap?
The rubber hose leading from your airgap to your garbage disposal or drain pipe is propably plugged. Remove hose and clean or replace. Also, when you remove the hose leading from the airgap to the garbage disposal, check to ensure that your stopper plug is removed from the garbage disposal. The stopper plug is a metal or rubber plug placed in the garbage disposal for people that don't have a dishwasher. The best way to remove this plug is by taking a screwdriver and placing it on the plug and gently tapping the butt of the screwdriver with a hammer until the plug pops out. Use metal fingers to remove the plug from the upper hopper chamber of the garbage disposal or (if you are daring enough) remove with your hands.
How latching current is different from holding current?
Latching current is the minimum amount of current required to maintain the thyristor in on-state immediately after a thyristor is turned on..and Holding current is a minimum current that is required to maintain the thyristor in on-state not allowing it to turn off.Alternative AnswerIf you are referring to a relay or contactor, when the relay is de-energised, there is a break in the magnetic circuit, so the magnetic circuit has an airgap which makes it have a high reluctance. When the relay is energised, the magnetic circuit causes the armature to close, removing the airgap and reducing the value of reluctance. So, when you first energise the relay, there must be a greater magnetomotive to overcome the higher reluctance. When the relay is closed, a lower magnetomotive force will be sufficient to overcome the lower reluctance and maintain the relay closed.
What is salient and non salient pole alternator?
In salient pole alternator Xar is unequal in D-axis and Q-axis, due to non uniform air gap where as in non-salient pole Xar is equal in every axis due to uniform airgap between stator and rotor. Xar is armature reaction reactance.
