Working of an electric generator explain according to diagram
Answers
Working of an electric generator
ɢᴇɴᴇʀᴀᴛᴏʀ:
It is a device which converts mechanical energy into electrical energy. Mechanical energy may either be fuel or some other resource.
ᴡᴏʀᴋɪɴɢ:
It works on the principle of electromagnetic induction discovered by Michael Faraday. Generators are basically coils of electric conductors, normally copper wire, that are tightly wound onto a metal core and are mounted to turn around inside an exhibit of large magnets. An electric conductor moves through a magnetic field, the magnetism will interface with the electrons in the conductor to induce a flow of electrical current inside it.
The conductor coil and its core are called the armature, connecting the armature to the shaft of a mechanical power source, for example an motor, the copper conductor can turn at exceptionally increased speed over the magnetic field.
ᴛʏᴘᴇs:
AC Generators
DC Generators
ʙᴇ ʏᴏᴜʀs..........^_^
Principle:
It works on the principle of electromagnetic induction. When a closed coil is rotated in a uniform magnetic field with its Axis perpendicular to the magnetic field the magnetic field lines passing through the coil change and and induced EMF and hence a current is set up in it.
Working:
The amature coil ABCD is in the horizontal position. Now the coil is rotated clockwise. The coil touch the magnetic lines of force. The arm AB moves upward while the arm CD moves downwards. According to Fleming's right hand rule the induced current flows from A to B in arm AB and C to D in arm CD , The induced current flows along ABCD. Induced current flows in the circuit through brush B2 to B1. After half the rotation of the amature, the arm CD moves upward and AB moves downwards. The induced current now flows in the reverse direction that is along DCBA. The current flows from B1 to B2. Does the direction of current in the internal circuit changes after half rotation such a current which changes its direction after equal intervals of time is called alternating current this device is called AC generator.
