Nv23131engineering

2. Change-over switching in a periodic and automatic manner without interruption of the electric current.
3. Property in an electric circuit where a change in the current induces an electromotive force that opposes the change in current.
7. A source of the power to the field winding of an electrical machine.
8. The ratio of the voltage to the electric current, a measure of opposition to time-varying electric current in an electric circuit.
11. A material which contains movable electrical charges.
13. Force required to accelerate a mass of one kilogram at a rate of one meter per second per second.
15. The materials and parts used to insulate conductive elements of a machine.
16. The part of a machine which receives or delivers active power to the external electrical system.
17. Electromechanical device that converts mechanical energy to electrical energy in the form of alternating current.
19. A device that creates mechanical motion by converting various forms of energy to rotating or linear mechanical energy.
20. Unit of power. 1hp = 746W
22. Ratio of output power to input power of a device.

1. The rate at which work is performed.
3. Converter that changes direct electric current to single-phase or poly-phase alternating currents.
4. An assembly of insulated conducting segments connected to the rotating armature winding.
5. SI base unit of electric current.
6. Magnetic poles created in a machine by windings.
9. The reduction of insulation life due to thermal, voltage and other stress.
10. Rotating electric machine used to transform mechanical energy into electric energy.
11. Set of series connected turns.
12. The resistance to AC current due to capacitance or inductance.
14. A machine which converts electrical energy into mechanical energy.
18. The amount of electrical energy stored for a given electric potential.
21. SI derived unit for frequency defined as the number of cycles per second of a periodic function.