transmission tower ppt

8/19/2019 transmission TOWER PPT

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A MINI PROJECT PRESENTATION

ON

DESIGN OF TRANSMISSION

LINE TOWER USING STAAD.PRO

under the guidance of

Mr.K.Rajendra Prasad

Assistant Professor Submitted by

G.Bhavik K!ar God "#B$"A%"%&

'.Nikhi( "#B$"A%"#)

*.Rakesh Redd+ "#B$"A%",,


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CONTENTS

INTRO*'CTION

PARTS O- TRANSMISSION TOER

T/PES O- TRANSMISSION TOER

TOER 0EIG0T

RO1E O- IN* PRESS'RE

PROB1EM *E-INITION

TOER 0EIG0T CA1C'1ATIONS

IN* 1OA*

1OA* CASES ON TOER STAA* MO*E11ING

CONC1'SION


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INTRO*'CTION

Trans!ission to2er is a ta((

str3tre sed to s44ort a

overhead 4o2er (ine.The+ are

sed in hi5h6vo(ta5e AC and

*C s+ste!s7 and 3o!e in a

2ide variet+ of sha4es and

si8es. T+4i3a( hei5ht ran5es

fro! "& to && !etres .


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PARTS O- TRANSMISSION TOER

• Peak of trans!ission to2er

• Cross ar! of trans!ission to2er

• Ca5e of trans!ission to2er

• Trans!ission to2er 9od+

• Ins(ator strin5


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T/PES O- TRANSMISSION TOER

Based on An5(e of deviation :". A6t+4e to2er6an(5e of deviation %; to #;

#. B6t+4e to2er6an(5e of deviation #; TO "&;

,. C6t+4e to2er6an(5e of deviation "&; to ,%;


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TOER 0EIG0T

". Mini!! 4er!issi9(e

5rond 3(earan3e h"

#. Ma=i!! sa5 h#

,. >erti3a( s4a3in5

9et2een 3ond3tors h,

erti3a( 3(earan3e

9et2een 5rond 2ire

and to4 3ond3tor h<


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RO1E O- IN* PRESS'RE

• ind 8ones and 9asi3 2ind s4eed

• >ariation of 2ind s4eed 2ith hei5ht

• ind for3e on str3tre


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PROB1EM *E-INITION

To2er (o3ation is se(e3ted at 0+dera9ad 2ith fo((o2in5s4e3ifi3ations.

The fo((o2in5 4ara!eters are ass!ed fro!

IS $%# Part ": Se3 " : "??&7 IS &)", Part #:Se3 ": "?$?.

• Trans!ission (ine vo(ta5e : ##%K>

• An5(e of (ine deviation : %; to #;

• Terrain t+4e 3onsidered : 4(ain

• Terrain Cate5or+: # @Nor!a( 3ross 3ontr+ (ines 2ith fe2

o9sta3(es

• Retrn Period: &% +ears

• ind 8one: ,


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• Basi3 ind S4eed:


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• Ma=i!! Te!4eratre: erti3a( S4a3in5 9et2een Cond3tors & !

• 0ori8onta( S4a3in5 9et2een Cond3tors: ? !


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• Base idth 0ei5ht: ":).)

• ind S4an Nor!a( s4an ,&% !

Cond3tor 4ro4erties• >o(ta5e 1eve(: ##% k>

• Code Na!e of Cond3tor: ASCR HEBRA

•

No. of Cond3torsPhase: ONE• Strandin5 ire dia.: &


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• Mod(s of E(asti3it+: )?GN

• Coeffi3ient of 1inear E=4ansion: "?., F

•Ma=i!! te!4eratre of Cond3tor: &

Earth ire Pro4erties

• Materia( of Earth ire: Ga(vani8ed Stee(

•

No. of earth 2ire: ONE• Strandin5 ire dia!eter: ,."&

• Tota( Se3tiona( Area: &


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• Mod(s of E(asti3it+: "?,.)" GN

• Coeffi3ient of (inear e=4ansion: "".&% F

•

Ma=i!! te!4eratre of Earth ire: &,


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TOER 0EIG0T CA1C'1ATIONS

• 0ere 2e are takin5 h" . (ine of # 3ir3its7 !ini!! verti3a(

s4a3in5 9et2een 3ond3tors is


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at the 4eak 4oint to the (ine joinin5 the 4eak 4oint and

to4 ins(ator strin5.Tan ,%

h< .?


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IN* 1OA*

-or 2ind (oad on to2er

L L × ×

• At to4 3ross ar! @)"


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• At 9otto! 3ross ar!: @)"


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1OA* CASES ON TOER

". Nor!a( 3ondition ,# "%%Q 2ind

#. G TC MC BC Broken ,# "%%Q 2ind


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,. G TC BC MC Broken ,# "%%Q 2ind


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&. TC MC BC G Broken ,# "%%Q 2ind


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STAA* MO*E11ING

• Trans!ission (ine to2er is !ode((ed sin5 the

3oordinates of different nodes and then7 joinin5 the!

to for! !e!9ers and (ti!ate(+ a trans!ission to2er.

• S44ort are 3hosen to 9e fi=ed.• Then the & (oad 3ases are 3onsidered.

• Se3tions is 3hosen as ISEA )% L)% L) !!.

•

Para!eters defined as '(ti!ate tensi(e stren5th


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Se3tion 3hosen hot ro((ed se3tion

• *esi5n is done a33ordin5 to the (oadin5 3onditions

and then the res(ts are o9tained.


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A=ia( -or3e *istri9tion *ia5ra!s

-or & 1oad Cases

1 2 3 4 5


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*ef(e3ted Sha4e *ia5ra!s

-or & (oad Cases

1 2 4 53


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CONC1'SION

In the 4resent std+7 a ##% K> trans!ission (ineto2er is desi5ned in 2ind 8one , 2ith a 9asi3 2ind

s4eed of to2er7 Cond3tors and the Grond 2ire are 3a(3(ated

sin5 the reired Indian Standard Codes7 and then

the to2er is !ode((ed and desi5ned sin5

STAA*.Pro >$i . The stee( se3tions reired are

o9tained a(on5 2ith !e!9er for3es and Noda(

dis4(a3e!ents.


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T0ANK /O' A11

AN/ 'ERIES

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