chapter1-3_three phase transformer

7/26/2019 Chapter1-3_Three Phase Transformer

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MZSFKEE,UMP

33

TransformerTransformer

Muhamad Zahim Sujod

Ext : 2312A1-01-06

[email protected]

BEE2123

ELE!"#AL MA$#%ES


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Learning OutcomesLearning Outcomes

At the e+d o, the etu/e( tude+t houd e

ae to:

)+de/ta+d the p/i+ipe a+d the +atu/e o, 3p/i+ipe a+d the +atu/e o, 3

phae t/a+,o/me/.phae t/a+,o/me/.

*e/,o/m a+ a+ayi o+ 3 phae3 phae

t/a+,o/me/ hih thei/ p/i+ipe a/e

ai to the u+de/ta+di+ o, eet/iaeet/iamahi+emahi+e.


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IntroductionIntroduction

A 3 t/a+,o/me/ i ee+tiay 3 i+e phae t/a+,o/me/ ou+d o+ ai ee+tiay 3 i+e phae t/a+,o/me/ ou+d o+ aommo+ o/eommo+ o/e..

!he eomet/y o, the o/e!he eomet/y o, the o/e i uh that thei uh that the ,uxe o, the phae ha/e,uxe o, the phae ha/e

ommo+ pathommo+ path4 a a /eut( the 5oume o, i/o+ i+ 3the 5oume o, i/o+ i+ 3t/a+,o/me/ i et/a+,o/me/ i etha+ the 5oume o, i/o+ o, 3 i+e phae t/a+,o/me/ o, the ame /ati+tha+ the 5oume o, i/o+ o, 3 i+e phae t/a+,o/me/ o, the ame /ati+..

$e+e( the ot i /eduedot i /edued. a+y phae o, a 3 t/a+,o/me/ eha5e exaty ie a i+e phaet/a+,o/me/.

#+ 3t/a+,o/me/( the p/ima/y a+d eo+da/y i+di+ a+ e o++etedthe p/ima/y a+d eo+da/y i+di+ a+ e o++etedeithe/ i+ 7 o/eithe/ i+ 7 o/ .

!he poie o++etio+ a/e:*/ima/y Seo+da/y

77 77

7 77 7


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Transformer ConstructionTransformer Construction

3 Si+e *hae !/a+,o/me/

Np1 Ns1

Np2 Ns2

Np3 Ns3


BankBank

RR YY BB

8)ed a ot i+ ode/ t/a+,o/me/8ad5:- eah u+it i+ the a+ a+ e /epaed

i+di5iduay


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Transformer ConstructionTransformer Construction

3!/a+,o/me/ ou+d a i+e th/ee eed i/o+o/e

NNp1p1

NNs1s1

NNp2p2

NNs2s2

NNp3p3

NNs2s2

8mo/e p/e,e//ed i+ p/atiemo/e p/e,e//ed i+ p/atie8ad5:- ihte/( mae/( heape/( ihty mo/eihte/( mae/( heape/( ihty mo/e

e,,iie+te,,iie+t8i/o+ o/e mut e ami+ated :

8to /edue eddy u//e+t o8i/o+ mut e made o, o,t i/o+ :

8to /edue hyte/ei o8ooi+ the t/a+,o/me/ :- ue ,a+ o/ heat i+

8o,t i/o+ mut e add ith 3-9 iio+ :- to i+/eae the atu/atio+ ,ux

i+ the i/o+

; !he amou+t o, iio+ mut +ot too hihmut +ot too hihothe/ie the i/o+ i e /ittei/o+ i e /itte8amp the ami+atio+ :- to /edue the hummi+ +oie


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Delta (Delta () Delta () Delta () Connection) Connection

!hi o++etio+ i economical for largeeconomical for large( o-5otaeo-5otae

t/a+,o/me/t/a+,o/me/i+ hih i+uatio+ p/oem i +ot oi+uatio+ p/oem i +ot o

u/e+t.u/e+t.

B

AA

VL1

CC

V1

#1

IIL1L1

B'

A'

C'

V2

#2

IL2


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Delta (Delta () Delta () Delta () Connection) Connection(Schematic Diagram)(Schematic Diagram)

A

B C

A

N

C

N

B

N

A

N

C

N

B

N

A

B C

A

N

C

N

B

N

A

N

C

N

B

N


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Delta (Delta () Delta () Delta () Connection) Connection(Schematic Diagram)(Schematic Diagram)

Refer to primar!Refer to primar!

3

1

1

LI

I =

11 LVV = 22 LaVVa

=

"01


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Star (Y) Star (Y) ConnectionStar (Y) Star (Y) Connection

!hi o++etio+ i the mot eo+omiamot eo+omia,o/ ma( hihma( hih

5otae t/a+,o/me/5otae t/a+,o/me/.

VL1

IL1

A

V1

C

B

I1

VL2

IL2

A'

V2

C'

B'

I2


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Star (Y) Star (Y)Star (Y) Star (Y)ConnectionConnection

(Schematic Diagram)(Schematic Diagram)

%

A

B =

%

B

=

%

%

A =

%

%

%

A

B =

%

B

=

%

%

A =

%

%


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33rdrdharmonic henomenon andharmonic henomenon and

un!alanced loadingun!alanced loading

!he 7-7 o++etio+ ha to 5e/y e/iou

p/oem:

#, oad o+ the t/a+,o/me/ i/uit a/e

u+aa+ed( the+ the 5otae o+ the phae5otae o+ the phaeo,the t/a+,o/me/ a+ eome e5e/eyeome e5e/ey

u+aa+edu+aa+ed

!he/e i a e/iou p/oem ith thi/d ha/mo+ithi/d ha/mo+i

5otae5otae Soutio+ to the p/oem:Soutio+ to the p/oem:

Soidy /ou+d the +eut/a o, theSoidy /ou+d the +eut/a o, the

t/a+,o/me/t/a+,o/me/

#+t/odued a thi/d i+di+ o++eted i+#+t/odued a thi/d i+di+ o++eted i+


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Star (Y) Delta (Star (Y) Delta () Connection) Connection(Schematic Diagram)(Schematic Diagram)

A

N

C

N

B

N

A

N

C

N

B

N

A

B C

A

N

C

N

B

N

A

N

C

N

B

N


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Star (Y) Delta (Star (Y) Delta () Connection) Connection(Schematic Diagram)(Schematic Diagram)

Refer to primar!Refer to primar!

11 LII =

3

1

1

LV

V = 22 3 LY aVVa =

"01


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Delta (Delta () Star (Y)) Star (Y)

!hi type o, o++etio+ i mai+y ued ,o/ the ytem

he/e e +eed to tep-up the 5otae.

VL2

IL2

A'

V2

C'

B'

I2

BB

A

VL1

C

V1

#

1

IL1


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Delta (Delta () Star (Y) (Schematic) Star (Y) (SchematicDiagram)Diagram)

A

N

C

N

B

N

A

N

C

N

B

N

A

B C

A

N

C

N

B

N

A

N

C

N

B

N


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"uto#Transformer"uto#Transformer

Auto-!/a+,o/me/ i a t/a+,o/me/ ith o+y o+e i+di+.t/a+,o/me/ ith o+y o+e i+di+.

!hat mea+( the p/ima/y a+d eo+da/y i+di+ a/e

+ot eet/iay ioated ,o/m eah othe/+ot eet/iay ioated ,o/m eah othe/. #+ othe/ o/d(

the p/ima/y a+d the eo+da/y o, autot/a+,o/me/ a/e

phyiay o++eted.phyiay o++eted.

!he theo/ytheo/y i amotamot the ameame a to i+di+to i+di+

t/a+,o/me/.t/a+,o/me/.


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"uto#Transformer ("nal'sis for Ste#"uto#Transformer ("nal'sis for Ste#

u "utotrans)u "utotrans)

>1 >1%1

%1

VVLL

VV11

II11

VV22

II22

IIHH

VVHH

aa

""

cc

IILL

!o 4 i+di+ !/a+,o/me/!o 4 i+di+ !/a+,o/me/ o++etio+ a a+ Auto-!/a+,o/me/o++etio+ a a+ Auto-!/a+,o/me/


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21

1

VVV

VV

H

L

+==

1

2

2

2

1

1

IIII

III

I

V

VA

I

V

VAI

HLsidevoltagelowatRated

HsidevoltagehighatRated

autotransRated

TW

TW

+=

=

=

=

2#2# C$rrent RatingC$rrent Rating

VVLL

VV11

II11

VV22

II22

IIHH

VVHH

aa

""

cc

IILL

1#1# Voltage RatingVoltage Rating

3#3# A$totrans T$rns%RatioA$totrans T$rns%Ratio

L

H

V

Va=


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kVAIV

VA

kVAIV

VA

LLL

HHH

1***

1***

=

=

+1**1

+1**+1**

(

,

(

(

=

==

+=

=

in

losses

in

lossesin

in

out

outlossesin

autotransout

losses

P

P

PPP

PP

PPP

thatKnow

kVAfpP

factorpowerandP

Given

fficiencfficienc(#(# kVA RatingkVA Rating


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"uto#Transformer ($-amle)"uto#Transformer ($-amle)

1. A i+e phae( 100>A(

2000?200> to-i+di+

t/a+,o/me/ i o++eted a a+

autot/a+,o/me/ a ho+ i+

&iu/e 1 uh that 2000> iotai+ed at eo+da/y. !he po/tio+

aa i the 200> i+di+( a+d the

po/tio+ i the 2000> i+di+.

ompute the >A /ati+ a a+autot/a+,o/me/. Ao auate the

e,,iie+y ,o/ a i5e+ oe o,

200 at 0.66 ai+ poe/

,ato/.

VVLL

VV11

II11

VV22

II22

IIHH

VVHH

aa

""

cc

IILL

)ig$re 1)ig$re 1


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"uto#Transformer ($-amle)"uto#Transformer ($-amle)

AIII

AII

I

AV

VAI

AV

VAI

HL

H

autotransRated

TW

TW

..*.*.**

.**

.**2**

1*1**

.*2***

1*1**

1

2

3

2

2

3

1

1

=+=+=

==

=

==

===

+/1,00

+1**1*,0..1*,0.2

,0..2**1*,0.2

,0.2)1*11**(,*

,*,2**

3

3

3

3

=

=

=+=+=

==

==

kWPPP

kWP

fpandWP

Given

outlossesin

out

losses

kVAIV

VA

R

kVAIV

VA

LLL

HH

H

11**1***

)..*)(2***(1***

11**1***

).**)(22**(

1***

===

===

VVVV

VVV

H

L

22**2**2***

2***

21

1

=+=+=

==


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/aa/aa

i. Ae+e o, eet/iay ioatio+ i a e/iou d/aa

i+ ome appiatio+

"d&antages and Dra4!ac5 of "uto#"d&antages and Dra4!ac5 of "uto#


Ad5a+taeAd5a+tae

i. !he eo+da/y i+di+ i a pa/t o, p/ima/y i+di+.

$e+e( autot/a+,o/me/ eimi+ate the +eed ,o/ aeimi+ate the +eed ,o/ a

epa/ate eo+da/y i+di+epa/ate eo+da/y i+di+.

ii. A a /eut( autot/a+,o/me/ a/e aay mae/(mae/(

ihte/( a+d heape/ihte/( a+d heape/.


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Instrument TransformerInstrument Transformer

>otae !/a+,o/me/ C*ote+tia !/a+,o/me/D>otae !/a+,o/me/ C*ote+tia !/a+,o/me/D

# ued to meau/e o/ mo+ito/ the 5otae o+

t/a+miio+ i+e a+d to ioate the mete/i+

euipme+t ,/om the i+e.


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Instrument TransformerInstrument Transformer

u//e+t !/a+,o/me/u//e+t !/a+,o/me/

# ued to meau/e o/ mo+ito/ the u//e+t i+

t/a+miio+ i+e a+d to ioate the mete/i+

euipme+t a+d /eay o++eted to eo+da/y ide.


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Other T'es of TransformerOther T'es of Transformer

$ih &/eue+y !/a+,o/me/$ih &/eue+y !/a+,o/me/

6 #+ eet/o+i poe/ uppie( the/e i aay a +eed to

ioate the output ,/om the i+put a+d to /edue the

eiht a+d ot o, u+it.

6 !he ojeti5e a/e et ahie5ed y ui+ a /eati5ey

hih ,/eue+y ompa/ed to +o/ma ,/eue+y o,

90$z ? 60$z.

chapter1-3_three phase transformer

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