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3 Two series motors are coupled One motor runs as generator and other as motor The friction losses of the two machines will be equal when?
when both runs at same speed
Is magnetic coupling or inductive coupling are same?
A plain mag coupler uses magnets to replace the field and armature coils in a brushless dc motor. Then two shafts are coupled together, but to remain coupled they have to be synchronous (rotating at the same speed). If one shaft has a drive motor and the other has the load (fan blades for example) if the load exceeds the maximum torque they slip and are no longer coupled together (the blades will stop turning until the motor stops and restarts). A mechanical inductive coupling has a squirrel cage similar to an induction motor. This allows the transmission of torque without having to have the same speed. Also, inductive coupling can refer to transmitting electrical power through coupled inductors or a transformer.
What happens when dc is given to ac motor?
motor will not rotate
What happens when a motor overheats?
It makes the motor run insufficiently.
What happens if single phasing occurs when a motor is running?
motor stops
How can you use a synchronous motor as a synchronous genarator?
to use prime mover
An example of an energy input to a genarator is?
Whatever is turning the shaft (turbine, motor, hand crank, etc.).
Can 3 phase induction motor start and run rated speed by 2 phase?
yes, It would run as long as the motor was not coupled to a load. Coupled to a load the motor would have no torque and would stall.
Who invented the genarator?
Bassam Siraj
What happens if you remove emitter resistor in RCcoupled amplifier?
what happens if we remove Rc in RC coupled amplifier
How does a small genarator differ from a large scale genarator?
I heard lot about generators as they are mostly use in home as well as offices. Generally received updates from wisesales.
Who invented a genarator?
Nikola Tesla was the inventor of generator
Is a wizard 101 crown genarator legal?
It is illegal .
Can an ac motor generate electricity?
An ac motor cannot generate electricity but its shaft can be coupled to that of certain devices like an alternator to in order to generate electricity.
Why reciprocating pumps are not coupled with motor?
In case of emergency, if the cylinder stops, the motor does not. So it can be harmful for motor. Designers couple the high power motor to the cylinder of pump by means of a clutch. so the motor can continue to rotate while the cylinder stops. Also in case of closing the outlet valve of a pump, the pressure in the cylinder can fail the cylinder or crankshaft and accessories. in this case the clutch can separate the power from motor to the pump and prevent failure of pump.
Why encoder is coupled with motor shaft?
Encoder is being used to measurethe depth of pile in case of piling rig
How are the two circuits of an induction motor similar to the circuit of a transformer?
They are magnetically coupled--a current in one circuit induces a current in the other one in both a transformer and an induction motor.
