Motor Electrical Concepts and Constructions Group 2

8/9/2019 Motor Electrical Concepts and Constructions Group 2

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Motor Electrical concepts and

constructions

Group 2Hayet

Souhim

Zaid



CONTENTS:

• Motor construction & Electrical concept

• Shaft Material and Elastomers

• Tandem Motors

• Oil selection



The o!nhole Electric Motor:

"# phase

"S$uirrel ca%e

"2 pole"nduction Motor'

(' Motor construction &

Components



('Motor construction &

Components



)aminations *indin%s


Components



The rotor is a de+ice that rotates inside the

stator core it is made up of :•rotor laminations these creates the iron

core'• copper ,ars !ith supportin% copper end

rin%s'

The ,ars are shorted to%ether at each end ,y

a rotor -end rin%.' ependin% on the motor/

the end rin% is either ,raided or ,ra0ed to the

rotor ,ars'


Components




Components

Motor 1earin%s



• The motor thrust ,earin% is installed at

the top of the rotor strin%' t is desi%ned to

hold the !ei%ht of the entire rotorassem,ly'


Components



• The stator taes electrical ener%y 34567 from the surface and

con+erts this to ma%netic ener%y in the stator laminations'

• The ma%netic poles of the rotor !ill ,e attracted to 3and repelled

,y7 the ma%netic poles in the stator'• This electrical ener%y in the rotor induces a secondary ma%netic field

in the rotor laminations'

• The ma%netic field of the stator induces current 3electrical ener%y7

flo! in the rotor'• 6s the stator ma%netic field mo+es/ the rotor !ill mo+e to try to

follo! it'

('Motor Electrical Concept



There are 8 type of motor at ES9

S

)T T CT

Connected to

other motor;MH

Connected to

other motor;M1

Connected toother motor;MH

Connected to

other motor;M1

22' Motor Tandem



• Steel 4130

• Contains <'#<= Car,on/ and (= Chromium

• sually used in >middle series?

• High Strength Steel 4130

• 6lso contains <'#<= Car,on/ and (= Chromium ,ut heat@treatedto increase the stren%th

• sually used in >,i% series?

/ and >small series?'

Motor Series#AB

8B

B8<

B2

A#D

#' Material Options



Material choice for motor housin% is determined ,y:

Corrosi+es in !ell fluid 3CO2/ H2S7

6,rasi+es in !ell fluid 3sand/ $uart07

Erosion tendencies of !ell

Sound familiar t?s the same criteria as the pump housin%'



Our Material options are also the same/ includin%:

•Car,on Steel 3standard7

•Fedalloy G = Cr (= Moly 3corrosi+e en+ironments7

•Hi%h Chromium Metallur%ies@ (#= Cr and 2B= Cr 3eItreme CO 2 & H2S7

•Coatin% 6+aila,le G Juality/ cost effecti+e solution

1ecause the !ell conditions at the motor !ill ,e the same as at

the pump/ !ith some additional flo! alon% the outside/ themotor housin% material should ,e the same or ,etter than the

pump'

#' Material Options



Oil selection determined ,y

• Motor !indin% temperature

• 6m,ient temperature durin%

installation

Kunctions of Oil:• )u,ricant• Coolin%• ielectric

REMEMBER!!

Motor and 9rotector must use same oil

O8'Oil Selection



& M 9 O F T 6 N T L L

8'Oil Selection



6ny Juestions

Motor Electrical Concepts and Constructions Group 2

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Transcript of Motor Electrical Concepts and Constructions Group 2