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Torque is developed by, among other things as well, the magnetic attraction or repulsion of two magnetic fields, contributing through rotational leverage to produce a net torque.
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What are damping devices?
due to reflecting torque pointer moves in one direction by due to controlling torque pointer moves in opposite direction therefore pointer oscillate in forward and backward direction.if there is no deflecting torque the device to ensure that the pointer comes to rest quickly with minimum oscillation at its correct reading position is known as damping device...
How torque is produced in a induction motor?
Torque is a Force applied at a Moment Arm. Or a force applied to a bar of a set length. Torque is a unit of Foot-pounds. If you have a ratchet wrench that has a 1 foot handle and you use it to torque a Bolt by applying a force of 20 lbs this will produce a 20 ft-lb torque load to the bolt. ( 1 Foot X 20 Lbs). This can be converted to 240 inch-lbs. The torque produced by car engines are also measured in terms of foot-pound of torque. This defines the power that the engine produces at the Shaft. This is convenient to use in calculating how much power is delivered to a car's transmission or wheels to allow the engineer to determine how fast the car will go, etc.
What is deflecting torque?
Controlling torque controls the deflection and tries to stop the pointer at its final position.But due to inertia, the pointer oscillates around its final position before coming to rest. Hence damping torque is provoded to avoid this oscillation and bring the pointer quickly to its final position.Thus the damping torque is never greater than the controlling torque. In fact it is the condition of critical damping which is sufficient to enable the pointer to rise quickly to its deflected position without overshooting.
Advantage and disadvantage of repulsion type moving iron instrument?
AdvantagesThe instruments are suitable for use in AC and DC circuits.The instruments are robust, owing to the simple construction of the moving parts.The stationary parts of the instruments are also simple.Instrument is low cost compared to moving coil instrument.Torque/weight ratio is high, thus less frictional error.ErrorsError due to variation in temperature.Error due to friction is quite small as torque-weight ratio is high in moving coil instruments.Stray fields cause relatively low values of magnetizing force produced by the coil. Efficient magnetic screening is essential to reduce this effect.Error due to variation of frequency causes change of reactance of the coil and also changes the eddy currents induced in neighbouring metal.Deflecting torque is not exactly proportional to the square of the current due to non-linear characteristics of iron material.
How the torque switch work in auma valves?
in the Auma valves torque switches are used to cut off the motor incase of excessive force due to jamming of valves or at the end positons failure of limit swtches, once the end positon is reached still motor is enrgised conditon due to limit switch problem it causes excessive torque on the worm by sensing its axial movement , it is transmitted by a lever and gear arrangement to a microswitch and it is adjsutable thorugh a spring force.
When due for rotation and balance and alignment which should you do first?
Rotate and balance, then alignment.
When the tides are especially strong due to the alignment of the sun and mWhen the tides are especially strong due to the alignment of the sun and moon it is called a oon it is called a tide?
spring
Metamorphic rock with a banded appearance due to the alignment of material are?
No
What is cogging torque?
Cogging torque is due to the slotting, and pulsation torque is due to the space harmonics, and both must be reduced for best perfomance of the machine, so it's a negative influence.
What and when the tides are especially strong due to the alignment of the sun and moon?
spring
Metamorphic rocks with a banded appearance due to the alignment of minerals?
its foliated
When the tides are especially strong due to the alignment of the sun and moon they are what?
spring
Metamorphic rocks with a banded appearance due to the alignment of minerals are?
its foliated
When the tides are especially strong due to the alignment of the sun and the moon is called a?
springspring
When the tides are especially strong due to the alignment of the sun and moon its is called a?
springspring
When the tides are especially strong due to the alignment of the sun and moon called?
wd
When the tides are especially strong due to the alignment of the sun and moon is called?
wd
