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SULIT E2001

Arahan: Sila jawab EMPAT (4) soalan daripadaENAM (6) soalan.

Instruction: Answer FOUR (4) questions fromSIX (6) questions.

SOALAN 1

a. !ata"an EMPAT(4)"ebai"an sistem ti#a fasa berbandin# sistem 1 fasa.

$% mar"a&'

b. Ti#a beban !an# seimban# den#an rintan#an 20dan aru&an 10m( ba#i ba#i

setiap fasa disambun# "e be"alan s!stem ) fasa *1+,- +0(. /i"a beban tersebutdisambun# seara bintan#- "ira"an nilai:

i. arus fasa

ii. arus talianiii. "uasa sebenar

i. "uasa "etara. "uasa rea"tif

$ mar"a&'

. /i"a beban3beban tersebut disambun# seara delta pula- "ira"an nilai:

i. arus fasa

ii. arus talianiii. "uasa sebenar

i. "uasa "etara. "uasa rea"tif

$% mar"a&'

2

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UESTION 1

a. State FOUR(4)adanta#es of t&ree p&ase s!stem ompared to sin#le p&ases!stem.

$% mar"s'

b. T&ree impedane wit& 20resistane and 10m( indutane onneted to t&ree

p&ase s!stem *1+,- +0(. If t&e impedane are onneted in star onnetion-

alulate :

i. p&ase urrent

ii. line urrent

iii. real power i. apparent power

. reatie power

$ mar"s'

. If t&ese impedane are in delta onnetion- alulate :

i. p&ase urrent

ii. line urrent

iii. real power i. apparent power

. reatie power

$% mar"s'

)

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SULIT E2001

SOALAN !

a. i.. 4eri"an definasi ba#i "orona.

$2 mar"a&'

ii. !ata"an "UA(!) "esan sampin#an a"ibat "orona !an# wujud pada talianpen#&antaran dan "UA(!)ara men#atasi "esan "orona tersebut.

$* mar"a&'

b. Teran#"an "onsep "earu&an !an# berla"u dalam talian pen#&antaran apabila dua

pen#alir teraru& beserta #ambaraja&.

$+ mar"a&'

. i. 4eri"an TI#A($)jenis ujian !an# dijalan"an "e atas penebat talian atas.

$) mar"a&'

ii. Teran#"an seara rin#"as sala& satu ujian !an# tela& diberi"an pada soalan

23i di atas5

$2 mar"a&'

d. Sebua& talian pen#&antaran satu fasa ber"eupa!aan "uasa 1200"6 "e "ilan#

den#an oltan 11", pada fator "uasa 0.% men#e"or. Talian ini mempu!ai jumla&

rintan#an *dan #e#elun# "earu&an ). 7ira"an :

i. ilai oltan pada &ujun# pen#&antaran

$) mar"a&'

ii. 8eratus pen#aturan

$) mar"a&'

iii. 7ee"apan talian pen#&antaran

$) mar"a&'

*

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UESTION !

a. i.. 9ie t&e definition of "orona.

$2 mar"s'

ii. State T%O(!) side effet of "orona to distribution line and T%O(!)

met&ods to eliminate t&ese side effet.

$* mar"s'

b. Eplain t&e indutane onept between two line reatane in distribution line.

;raw t&e dia#ram.

$+ mar"s'

. i. 9ie T&REE($)t!pe of test for oer&ead line insulation.

$) mar"s'

ii. Eplain briefl! one of t&e test #ien in question 23i aboe.

$2 mar"s'

d. A sin#le p&ase distribution line wit& 1200 "6power suppl! 11", wit& power

fator 0.% le##in# to a fator!. T&e lin &as *resistane and )indutane.

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SOALAN $

a. Terdapat pelba#ai sistem sambun#an dalam s!stem pen#a#i&an be"alan "epada

pen##una. !ata"an TI#A($)iri3iri dan lu"is"an s!stem sambun#an beri"ut:

i. Sistem jejarian

ii. Sistem selari

iii. Sistem #elan#i. =an#"aian muda&

$1> mar"a&'

b. Teran#"an TI#A($)per"ara !an# perlu dipertimban#"an sebelum memili&"aeda& pemasan#an talian ele"tri" $"abel bawa& tana& atau talian atas'.

$> mar"a&'

. Lu"is"an "abel bawa& tana& dan nama"an ba&a#ian3ba&a#iann!a.

$) mar"a&'

>

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UESTION $

a. T&ere are multis!stem onnetion distribution s!stems for ustomer. State

T&REE($) &arateristis and s"et& onnetion s!stem:

i. Serial s!stem

ii. 8arallel s!stemiii. =in# s!stem

i. etwor" s!stem

$1> mar"s'

b. Eplain T&REE($)onsideration before &oosin# met&od for eletrial

installation line $under#round able or oer&ead able'.

$> mar"s'

. ;raw and label t&e parts of under#round able.

$) mar"s'

?

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SULIT E2001

SOALAN 4

a. !ata"an definasi rin#"as men#enai penawan#.

$ ) mar"a&'

b. Teran#"an den#an rin#"as binaan penawan# beri"ut:

i. 8enawan# luar ban#unan

ii. 8enawan# dalam ban#unan

$> mar"a&'

. Lu"is dan label"an #ambaraja& litar #aris tun##al penawan# pen#a#i&an

))",@11",.

$ > mar"a&'

d. !ata"an den#an jelas fun#si peralatan3peralatan penawan# beri"ut:

i. 8emutus litar

ii. Suis pen#asin#

iii. 8en#uba& oltan

i =ea"tor

. 8enan#"ap "ilat

$10 mar"a&'

%

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SULIT E2001

UESTION 4

a. State definition of substation.

$ ) mar"s'

b. Eplain t&e substation of:

i. utdoor substation

ii. Indoor substation

$ > mar"s'

. S"et& and label t&e iruit dia#ram of sin#le pole ))",@11", substation.

$ > mar"s'

d. State t&e funtion of:

i.

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SOALAN '

a. Teran#"an seara rin#"as "aeda& pendawaian ba#i :

i. 8endawaian tersembun!i

ii. 8endawaian permu"aan

iii. 8endawaian "odiut

$ > mar"a& '

b. 4eri"an "UA(!)peraturan IEE ba#i s!stem sesalur dan salur.

$ * mar"a&'

. Ta"rif"an sistem pembumian serta n!ata"an "UA(!)"elebi&an dan "UA(!)

"elema&an sistem pembumian.

$ % mar"a&'

d. Suatu litar a"&ir #elan# men##una"an "abel berpenebat p" dan bersalut "uprum

serta dilindun#i ole& fius )0A !an# bole& didawai"an iaitu 4S )0)>. ,oltan

be"alan iala& 2*0,. Tentu"an sai minimum pen#alir perlindun#an litar se"iran!a

masa "endalian iala& *.0 saat. ;iberi nilai " ba#i "abel p" den#an pen#alir

perlindun#an seba#ai teras iala& 11+.

/adual *1 A1 : Bius iaitu 4S )0)>

7adaran $ampere' 1+ 20 )0

CS$o&m' 2.? 1.% 1.1

$ ? mar"a&'

10

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UESTION '

a. Eplain t&e wirin# met&od for :

i.

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SOALAN 6

a. !ata"an TI#A($)"ate#ori pemasan#an dan "epentin#an setiap satun!a.

$> mar"a&'

b. !ata"an TI#A($)per"ara !an# perlu diambil "ira untu" menentu"an tempo&

masa ujian ba#i sesuatu pemasan#an.

$) mar"a&'

. 4eri"an TI#A($)peraturan IEE !an# ber"aitan den#an pemeri"saan dan

pen#ujian pemasan#an.

$)mar"a&'

d. 4eri"an "UA(!)tinda"an !an# perlu diambil "e atas pemasan#an !an#

tida" mematu&i s!arat semasa ujian pemeri"saan.

$2 mar"a&'

e. 4a#i pemeri"saan pen#li&atan:

i. !ata"an TI#A($)tujuan pemeri"saan pen#li&atan "e atas pemasan#an.

$) mar"a&'

ii. !ata"an LIMA(')per"ara !an# perlu diperi"sa dalam pemeri"saan

pen#li&atan.

$+ mar"a&'

iii. !ata"an TI#A($)peraturan IEE ba#i ujian pemeri"saan pen#li&atan

$) mar"a&'

12

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SULIT E2001

UESTION 6

a. State T&REE($)ate#ories of eletrial installation and t&e importane of ea&

ate#ories.

$> mar"s'

b. State T&REE($) onsiderations to determine t&e duration and time period to test

an eletrial installation.

$) mar"s'

. 9ie T&REE($)IEE re#ulations related to obseration and installation testin#.

$)mar"s'

d. 9ie T%O(!)ation s&ould be ta"en on installation t&at iolated rules and

re#ulation upon obseration test.

$2 mar"s'

e. Bor obseration test:

i. State T&REE($)purpose of obseration test for eletrial installation.

$) mar"s'

ii. State FIE(')t&in#s to &e" in obseration test.

$+ mar"s'

iii. State T&REE($)IEE re#ulations for obseration test.

$) mar"s'

1)