(ENERGY CONVERSION) ELECTROMECHANICAL ENERGY CONVERSION PRESENTED BY: ENGR. JUN A. TERESA DEPARTMENT OF ELECTRICAL ENGINEERING UNIVERSITY OF THE EAST - MANILA
(ENERGY CONVERSION)ELECTROMECHANICAL ENERGY CONVERSIONPRESENTED
BY: ENGR. JUN A. TERESADEPARTMENT OF ELECTRICAL
ENGINEERINGUNIVERSITY OF THE EAST - MANILA
ELECTROMECHANICAL ENERGY CONVERSIONELECTROMAGNETICINDUCTION
(EMI) PROCESS( DEMONSTRATED THROUGH)THE MAP
MACHINESDCACGENERATORMOTOR1 TRANSFORMERGoverned by
LawsSingle-phase3 TRANSFORMER
MODULE NO.1 DEFINITION OF AC AND DC WAVEFORMS THE ELEMENTARY
GENERATOR SLIP RING VS. SPLIT RING COLLECTOROBJECTIVES: To recall
the definition of AC and DC signal To explain how AC signal is
generated through Electromagnetic Induction Process To show how AC
signal is converted to DC signal
ELECTROMAGNETIC INDUCTIONWHENEVER A CONDUCTOR CUTS ACROSS THE
FLUX OF A MAGNETIC FIELD, AN EMF IS PRODUCED IN THE CONDUCTOR. If
the two ends of the conductor are connected to an outside circuit,
the induced emf causes current to flow in the circuit.
http://images.google.com.ph/imgres?imgurl=http://hnsa.org/doc/radio/img/fig65.jpg&imgrefurl=http:
When a wire made of conducting material cuts through a magnetic
field, an electrical current is created in the wire.Moving wire
through magnetic fieldMoving the wire through the magnetic field
creates an electric current, as measured by a meter attached to the
ends of the wirehttp://images.google.com.ph/
Principle : A.C. generators or alternators (as they are usually
called) operate on the same fundamental principles of
electromagnetic induction as DC generators. Alternating voltage may
be generated by rotating a coil in the magnetic field or by
rotating a magnetic field within a stationary coil. The value of
the voltage generated depends on- the number of turns in the coil.
strength of the field. the speed at which the coil or magnetic
field rotates.
AC VOLTAGE GENERATION
AC GENERATION
AC
GENERATIONhttp://images.google.com.ph/imgres?imgurl=http://hnsa.org/doc/radio/img/fig65.jpg&imgrefurl=http:
http://images.google.com.ph/Comparison of DC and AC loops and
rings
An electrical Generator is a machine which converts mechanical
energy (or power) into electrical energy (or power). Principle :It
is based on the principle of production of dynamically (or
motionally) induced e.m.f (Electromotive Force). Whenever a
conductor cuts magnetic flux, dynamically induced e.m.f. is
produced in it according to Faradays Law of Electromagnetic
Induction. This e.m.f. causes a current to flow if the conductor
circuit is closed.Hence, the basic essential parts of an electric
generator are : A magnetic field and A conductor or conductors
which can so move as to cut the flux.
DC VOLTAGE GENERATION
DC
GENERATIONhttp://images.google.com.ph/imgres?imgurl=http://hnsa.org/doc/radio/img/fig65.jpg&imgrefurl=http:
