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Chapter -1

INTRODUCTION

For the power generation with 2x110 MW, 3x210 MW and 21!" MW o# NTPC,DADRI$

a%thoritie& are re'%ired to (e operati)e to a*ti)e #%++ operation$ The a%xi+iarie& are (a&i*a++

operation either on $T$ .&te/ i$e$ 1" 3- power &%pp+ i& /ade a)ai+a(+e to the &&te/

a#ter pro)iding the &tation tranor/er o# 3x"0 MA *apa*it with )o+tage 220 4 5$245$2

6 di##erent &er)i*e tranor/er& o# *apa*it 1$0 MA, 1$" MA, 2$0 MA, whi*h are +o*ated

near the +oad *entre a& the tranor/er ha)ing the )o+tage o# 7$7 41" $ The 7$7 power

i& di&tri(%ted thro%gh 7$7 inter*onne*ted 8%& .&te/ #or a++ the #i)e %nit& with a *ontro+

thro%gh DC o# 220 $

The 1" power &%pp+ i& done thro%gh a $T$ .W9R

:.wit*hgear; whi*h are +o*ated near( the di&tri(%tion tranor/er a& we++ a& the +oad *enter&$

The a++ in*o/er&, whi*h are (rea


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prote*tion &&te/ with a+ar/ #a*i+it to ta


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The Nationa+ Ther/a+ Power .tation, Dadrii& idea++ on the +e#t (an< o#

Cha/(a+ Ri)er at p .trea/ o# Dadri Nationa+ 8arrage$ The +arge expan&e o# water rea*hed (

the (arrage pro)ide& an e##i*ient dire*t *ir*%+ation o# *oo+ing &&te/ #or the power &tation$ The

220 9.. i& within J /&$ #ro/ the power &tation$

LAND:-

and /ea&%ring approx$ 2"0 he*tare& wa& re'%ired #or the proHe*t in 1!57, For

di&po&a+ o# a&h tan< )er near to power &tation i& a*'%ired whi*h the a&h in &+%rr #or/ i&

di&po&ed o## thro%gh a&h and &+%rr di&po&a+ p+ant&$

COAL:-

Coa+ India +i/ited own& and operate& a++ the /aHor *oa+ #ie+d& in India thro%gh it&

*oa+ prod%*ing &%(&idiar *o/panie& )iG$ Northern Coa+ Fie+d& i/ited, .o%th @a&tern Coa+

Fie+d& i/ited, Coa+ India +i/ited i& &%pp+ *oa+ #ro/ it& *oa+ /ine& o# *oa+ prod%*ing

&%(&idiarie& .@C 6 NC to Nationa+ Ther/a+ Power .tation, Dadrithro%gh rai+wa wagon&$

The a)erage di&tan*e& o# .@C, NC are K00, !"0 /&$ re&pe*ti)e+$

WATER:-

The &o%r*e o# water #or power &tation i& re&er)oir #or/ed ( Dadri Nationa+

8arrage on the Ri)er$ In *a&e o# +arge *apa*it p+ant& h%ge '%antitie& o# *oa+ and water i&

re'%ired$ The *o&t o# tran&porting *oa+ and water i& parti*%+ar+ high$ There#ore, a& #ar a&

po&&i(+e, the p+ant /%&t (e +o*ated near the pit rather than at +oad *entre #or +oad a(o)e 200 MW

and 35" MW$ The tran&portation o# e+e*tri*a+ energ i& /ore e*ono/i*a+ a& *o/pared to the

tran&portation o# *oa+$

DESIGN FEATURES:-

The &atia*tor de&ign *on&i&t& o# the #+owing &tep&$

@&ti/ation o# *o&t$

ax/i De)i In&tit%te =# @ngineering 6 Te*hno+og, A+war

3


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.e+e*tion o# &ite$

Capa*it o# Power .tation$

.e+e*tion o# 8oi+er 6 T%r(ine$

.e+e*tion o# Conden&ing nit$

.e+e*tion o# @+e*tri*a+ 9enerator$

.e+e*tion o# Coo+ing .&te/$

De&ign o# Contro+ and in&tr%/entation &&te/$

The de&ign o# &tea/ power &tation re'%ire& wide experien*e a& the &%(&e'%ent

operation and /aintenan*e are great+ a##e*ted ( it& de&ign$ The /o&t e##i*ient de&ign *on&i&t o#

proper+ &iGed *o/ponent de&igned to operate &a#e+ and *on)enient+ a+ong with it& a%xi+iarie&



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and in&ta++ation$

Fig%re 1$1 I@W =F NTPC,DADRI

Chapter -2


"


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General Layout & Ba!" I#ea

A *ontro+ &&te/ o# &tation (a&i*a++ wor


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Coo+ing Water Cir*%it$

Fuel & A$ C!r"u!t:-

F%e+ #ro/ the &torage i& #ed to the (oi+er thro%gh #%e+ hand+ing de)i*e$

The #%e+ %&ed in NATI=NA TB@RMA P=W@R .TATI=N, DADRI i& *oa+, whi*h on

*o/(%&tion in the (oi+er prod%*ed the a&h$ The '%antit o# a&h prod%*ed i& approxi/ate+ 3"-

0 o# *oa+ %&ed$ Thi& a&h i& *o++e*ted at the (a*< o# the (oi+er and re/o)ed to a&h &torage tan

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