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A REPORT OF TECHNICAL VISIT
at
Paithan hydro-electric power plant
Class : TE (Civil)
DEPARTMENT OF CIVIL ENGINEERING
PADMASHRI DR. VITHALRAO VIKHE PATIL COLLEGE OF ENGINEERING,
AHMEDNAGAR.
Uiv!"sit# $% P&!
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V!&! : Pait-a H#"$ P$/!" Stati$
Dat! : 0t- a 't- S!1t!23!" '*
Class : T.E. Civil (Div+A 4 5)
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SALIENT FEATURES OF PROJECT
Name of the
Irrigation Project
a#a7/ai Sta6! + I
Ma>$" I""i6ati$ P"$>!9t
Type of project Ma>$"
Engineering Type of
Project St$"a6!
Purpoe of Project I""i6ati$
Name of the Ri!er G$ava"i
Statu C$21l!t!
State Ma-a"as-t"a
Inter"#ain Project N$
#ain G$ava"i
$ear of Start 0
Appro!e% &y
P'anning
commiion ($ear) 0
Appro!e% Cot &y
P'anningCommiion (R* in
Crore) @.*
Cu'tura&'e
Comman% Area
(CCA) (Th ha) @.*
+ro Comman%
Area (+CA) (Th ha) '*.
Potentia' Uti'i,e%
(Th ha) .
Net Irrigate%
Area(NIA) (Th ha) *.*
-itrict. #enefitte% A&"a6a3a
U'timate Irrigation
Potentia' (Th ha) '.@
$ear of
Commiioning / 0*
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No* of Unit 0
Capacity J ' 7;
-eign -icharge / *0.0 C&2!9s
+ro 1ea% / @'.@ 2
Net 1ea% / '.'@ 2
Type of Project / Da2 T$! 5as!
Type of -i!erion / P!st$97 Il!t
Catchment Area / ' S 72
Tur&ine Type / F"a9is
Tur&ine
2anufacturer / F&8i
Coup'ing / Di"!9t
A'ignment / V!"ti9al
Type of +enerator / S#9-"$$&s
+enerator
2anufacturer / F&>i
+enerator 3o'tage / 7V
Type of +o!ernor / El!9t"$2!9-ai9al
Po4er E!acuation
Le!e' / @' 7V
Su&Station Location Pait-a
Su&Station -itance 72
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1$-RO"TUR#INE +O3ERNIN+ S$STE2
Intro%uction
Governor control system for Hydro Turbines is basically a feed back control systemwhich senses the speed and power of the generating unit or the water level of theforebay of the hydroelectric installation etc. and takes control action for operatingthe discharge/load controlling devices in accordance with the deviation of actual setpoint from the reference point.Governor control system of all units suitable for isolated operation are a feed backcontrol system that controls the speed and power output of the hydroelectricturbine. Water level controllers can be used for grid connected units. Governingsystem comprises of following sections.a !ontrol sectionb "echanical hydraulic #ctuation section
The control section may be mechanical$ analogue electronic or digital. #ctuator canbe hydraulic controlled% mechanical &motor or load actuator. 'oad actuator are usedin micro hydel range$ mechanical &motor operated may be used say upto ())) kWunit si*e. Hydro actuator are mostly used.
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Type of +o!ernor Contro' Section
• M!9-ai9al C$t"$ll!" • El!9t"$+H#"a&li9 G$v!"$" Aal$6&! El!9t"$i9s
• El!9t"$ H#"a&li9 G$v!"$" Di6ital G$v!"$"s
Present day trend is to use digital governing control system in hydroelectric units. The ma+or advantages of microprocessor based system over the earlier analoguegovernors &based on solid state electronic circuitry are higher reliability% self diagnostic feature% modular design% ,eibility of changing control functions viasoftware% stability of set parameters% reduced wiring and easy remote controlthrough optical bre cables. "icroprocessor based governor control system arecapable of carrying out the followingcontrol functions in addition to speed control during idle run % operating in isolated
grid interconnected operation and islanding operation. !ontrol the power output depending on variation in grid fre0uency i.e. loadfre0uency control 1oint power control of a number of generating units in a power station Power control as per water levels in 2ore-bay and/or Tail-race #utomatic 3tarting / 3topping by single command 2ast response to transient conditions !ontrol from remote place 3upervisory !ontrol #nd 4ata #c0uisition &3!#4#
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