Expt 1

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Caloocan Campus College of Engineering EE Department EXPERIMENT # 1 “Structural Study of the Dynamo” Instructor: ENGR. REBONG Name: HERRERA, MARK KENNETH R. Student numer: 20111128871 Su!ect and Section: NEE 419 – 1ECM Date Performed : January 06, 2016 Date Sumitted: January 08, 2016 !" !"T T O# !N" !N "TR TR$ $MENT" %E"CR!'T!ON AN% E&$!'MENT AN% THE TH E!R Stator  Is t"e stationar part of a rotar sstem$ found in electric generators$ - electric motors$ sirens$ or iological rotors% Rotor -  T"e non&stationar part of an alternator or electric motor$ operating 'it" a stationar element% DC Mac"ine -  T"e electro mec"anical energ con(erters '"ic" 'or) from a d%c% source and generate mec"anical po'er or con(ert mec"anical po'er into a d%c% po'er% %ATA Part of t"e Dnamo *rame or +o)e Material cast iron or steel Main *unction It carries t"e magnetic ,u- '"ic" produced  *ield /indings copper t"e .eld 'inding% *ield coils are former 'ound and placed on eac" pole and are Poles cast iron or steel connected in series% T"e carr .eld 'inding and S"aft pole s"oes are fastened to t"em% T"e s"aft transfers Steel mec"anical energ to t"e generator and turns t"e Commutator coil t"roug" magnetic .eld% Collect t"e Copper t"e current generated in armature 0rmature Core conductors% t"in laminated circular It is clindrical in s"ape steel dis)s 0rmature /indings former coil 'ound 'it" slots to carr armature 'inding% copper  T"e armature conductors insulated are from eac" ot"er and also from t"e rus" 2older copper armature core% distriutes e(enl current across all t"e rus"es$ and permits a careful operator to remo(e a ad rus" and replace it 'it" a ne' one$ e(en mac"ine as continues t"e to spin full po'ered and rus" caron or grap"ite under load% T"e rest commutator segments and on t"e '"en t"e slide segments commutator )eeping contact Pigtail Spring on rotates t"e to p"sical collect or Copper suppl t"e current% Protecting t"e rus" Steel from spar)ing% To run t"e dnamo in constant speed% GRA'H" AN% %RA(!NG" Magnetic circuit of a four pole dnamo% AN"(ER" TO &$E"T!ON" 1% /" are some parts of t"e dnamo made of "ig"l permeale materials and some are made of conducti(e material3 ecause t"e motion of t"e 'ire 'it"in t"e magnetic .eld causes t"e - .eld to pus" on t"e electrons in t"e metal$ creating an electric current in t"e 'ire% 4% Is it possile to use t"e Re(ol(ing *ield Stationar 0rmature construction for DC dnamos3  +es 5% /"ic" part of t"e dnamo re6uires t"e greatest attention3 /"3 0rmature 'inding$ ecause of a Dynamo is virtually the heart of the dynamo. - - %!"C$""!ON In t"is e-periment$ 'e are ale to determine and to )no' '"at t"e di7erent parts of a dnamo is$ to understand '" some parts of it are made of conducti(e material '"ile ot"er parts are made of "ig"l permeale materials and lastl to )no' "o' motors and generators operate% *irst t"ing to do is to ma)e a p"sical inspection of t"e stator and rotor of a DC dnamo% T"en 'e 'ill identif eac" parts of it and ta)e note '"at material tpe it is made% /e can see t"at t"e parts of t"e dnamo are frame or o)e$ .eld 'indings$ poles$ s"aft$ commutator$ armature core$ armature 'indings$ rus" "older 'it" also rus"$ pigtail and also spring% 0fter 'e determine eac" part of t"e DC dnamo$ 'e identif eac" of it if t"e part 'as a copper$ steel oran tpe of metal or material% 0fter t"at 'e need to understand and t"in) '"at t"e di7erent parts of t"e dnamo is$ '"at is t"e function of it$ is it important inusing a DC dnamo or not% 8astl 'e need to dra' t"e magnetic circuit of a four pole dnamo% CONC$"!ON 0fter doing t"e e-periment and complete t"e data9s needed$ I conclude t"at t"ere is di7erent parts of DC dnamo and generators '"ic" e(er part of it is important for running it% I oser(ed t"at some parts of dnamo are made of conducti(e materials muc" often t"at made of "ig"l permeale materials% I can sa t"at motors and generators are mac"ines '"ic" con(ert electrical energ inputs into forces or applied )inetic energ inputs into electrical energ% 0lso I oser(e t"at generator can also e operated as a motor and (ice (ersa% RE#ERENCE" Electrical and Electronics Engineering Section 1$ page 11  C% ;0MES ERICenerator 