Why if number of poles increases the speed increases in synchronous motor physical understanding?
Why if number of poles increases the speed increases in synchronous motor?
When started on no load, a salient pole synchronous motor pulls in synchronism even before dc excitation applied, why? Why does speed of synchronous motor remain constant even under variable load? Electrical Machines: A synchronous motor is connected to an infinite bus, slowly field current are being reduced and made to zero. It was again increased but with opposite polarity. How armature current of motor will fluctuate? What is the relation between speed and torque in synchronous motor? Why does the speed of a synchronous alternator decrease slightly on loading while that of a synchronous motor remain constant even as we load it? How does a synchronous motor function? What is the formula to calculate a synchronous speed of a motor? How is a synchronous motor started? Explain about v and inverted curves of synchronous motor? How is a synchronous motor used for power factor correction? How is it operated at max efficiency? Can a synchronous motor run as an induction motor? In a d.c series motor how does the speed increase when the armature current decreases? What are the applications of a synchronous motor? What is the difference between an induction motor and a synchronous motor? Why is a synchronous motor not self-starting? How will motor react to frequencies other than 50 Hz or 60 Hz? Why air gap length is small in induction motor than synchronous motor? Why are synchronous motors not self starting? How can a synchronous generator be made to work as synchronous motor? Internal angle of synchronous motor? How does power factor of a synchronous machine changes with changing excitation? Why do we need two fluxes in a synchronous generator or a synchronous motor? What could be the max speed with 72V, 70 amp and 2000 watt motor? Which frequency inverter is best to control the speed of a 110kw ac electric motor? What is the difference between synchronous motors with damper winding and induction motor? What is reluctance torque? Why does it exist in the salient pole motor? Will a salient pole motor run without a field excitation? Is it true that in a DC motor, increasing Voltage increases RPM and increasing current increases torque? What is the difference between induction motor and synchronous motor in terms of armature winding and field winding? How would an electric motor with a maximum load of 15 kW be affected by the number of times it was started and stopped per hour? How can one make a torque inversely proportional to the speed or supply a frequency by keeping a supply voltage constant in an induction motor?