this ppt about rana pratap sagar dam.

1. ARana Pratap Sagar Hydro
Electric Power Plant
Presented By:
Naman Singhvi
Presented To:
Dr. Shobi Bagga
Roll No. : 21/517
Batch : EC3
ARana Pratap Sagar Hydro
Electric Power Plant
Presented By:
Naman Singhvi
Presented To:
Dr. Shobi Bagga
Roll No. : 21/517
Batch : EC3
PRESENTATION
ON
SUMMER TRAINING
AT
RANA PRATAP SAGAR
HYDROELECTRIC POWER PLANT
Presented By:
Naman Singhvi
Presented To:
Dr. Shobi Bagga
Roll No. : 21/517
Batch : EC3

2. Content:
Introduction
Basic Principle
General Description
Major Elements
Power Transformer
Electricity Equipments
Control Room
Auxiliary Power Supply
Conclusion

3. Introduction:
• RPS is balancing reservoir between G.S. upstream and J.S. on downstream.
This is followed by Kota barrage and water is diverted from it extensively
which is used for irrigation purpose in part of Rajasthan and Madhya Pradesh.
The hydroelectric power station located at the downstream of RPS dam on
Chambal River.
• The RPS dam constructed between 1965 and 1968 is dedicated to nation by
former prime minister late Smt. Indira Gandhi. There are four dams in
cascade on Chambal River in stretch of 70KM as riverbed drops by about 120
m between Gandhi Sagar.

4. Basic Principle:
 When a closed coil is rotated rapidly in a strong
magnetic field, the number of magnetic flux
lines passing through the coil changes
continuously.
 Hence an EMF is induced in the coil and the
current flows in it. In fact the mechanical
energy expended in rotating the coil appears as
electrical energy (current) in the coil.

5. Layout:
Fig: 1 Hydroelectric Power Plant Layout Diagram

6. General Description:
 At RPS HEPS, vertical turbine rotates at 125 rpm by the
water velocity. Generator is directly coupled with the
turbine, giving output of 43MW at 11KV voltage at 50
Hz frequency.
 Output voltage is step up to 132 KV by the transformer
and transmitting to the Northern grid through seven
transmission lines which are going to Bhilwara District,
Kota District, Jawahar Sagar Dam and Gandhi Sagar
Dam.

7. Function of RPS:
 To produce electricity as an active power of 4*43 MW and supplying it to
Rajasthan through 7 lines of 132 KV.
 In Past Time Synchronous Condenser is used for better voltage
regulations of the grids when required.
 To provide dedicated Power Supply to the nearest Nuclear Power Station
on priority basis whenever there is a problem in Northern grid for
starting of the plant and for maintaining Auxiliary Power Supply of their
plant in order to meet the safety norms of Nuclear Stations.
 To supply first power to the grid by the self-start in case of total
collapsing of northern grid.

8. MAJOR ELEMENTS :
This is constructed to act as
safety valve. It discharges the
overflow water to the down
streamside when the
reservoir is full. A condition
mainly arises during floods
periods.
It is closed conduct, which
connected the fore bay or
surge tank to the scroll case
of turbine. The typical
diameter of penstock is 20
feet.
The water after having done its
useful worked in the turbine is
discharged to the tailrace,
which may lead it to the same
stream or to another one. The
water discharge through a
tunnel.
It is an integral part of turbine.
The inlet of draft tube is
connected to the turbine and
outlet is submerged deep into
tailrace. The draft tube makes
the turbine capable of utilizing
kinetic energy of the exit water.
Spillway Penstock Tail Race Draft Tubes

9. MAJOR ELEMENTS :
Its purpose is to store water
during excess flow periods and
supply the same during lean flow
periods. Thus it helps in
supplying water to the turbines
according to load of power plant.
The function of dam is not only
to raise the water surface of the
stream but also to create an
artificial head and to provide the
poundage, storage or the facility
of diversion into conduits.
A forebay may be considered
as an enlarged body of water
just above the intake to store
water temporarily to meet the
hourly load fluctuations.
It is provided for preventing the
debris form getting entry into the
intakes from the fore bay.
Manual cleaning or mechanical
cleaning is used to remove the
debris from Trash Rack.
Storage Reservoir DAM Forebay Trash Rack

10. Power Transformer:
 Power transformer is used for stepping up the voltage for transmission.
Generally Δ-Y connected power transformers are used. They are Oil-
Immersed Transformer.
Transformer Rating:
KVA 55000
Phase 3
Frequency 50Hz
Input 11kv(delta)
Output 132kv(star)
Cooling OFW-55oC

11.  Generator:
The generators used in Hydro Power Plant are usually Three Phase Synchronous machines. The
generators have the speed range of 70- 1000 RPM. Generators have either a vertical shaft
arrangement or horizontal shaft arrangement. But the vertical shaft arrangement is preferred. The
generator cooling can be achieved by air circulation through the Stator Ducts.
Electrical Equipments :
 Main bracket:
All rotating parts in addition to hydraulic thrust are supported through the thrust bearing by
the main bracket which have 4 arms resting on the edge of the turbine pit. At the end of
each bracket arms are mounted by two units of counted brackets and jacks.

12.  Stator:
The 396 Slot Stator is wound with Diamond type coils containing Four windings
and connects 6 circuit wires with 6 main and 3 neutral leads brought out. Stator
winding insulation in unit 1, 3, and 4 is class F.
 Rotor:
The field coils are lubricated strip wound, 27 turns per pole in class F installation.
Resistance of the 48 posts field windings 0.196 ohms at 25 centigrade.

13. Electrical Equipments :
 Exciter:
The excitation system monitors the generator output and regulates the magnetic
field to maintain the desired voltage. As the load on the generator is increased, an
increase in current flow causes the voltage to drop.
Fig: 3 Exciter

14. Working:
 Hydroelectric and coal-fired power plants work in similar ways to produce electricity. Both
types of plants use a turbine, which is like a propeller, and an electric generator. The turbine is
turned by a power source, either steam in a coal-fired plant or falling water in a hydroelectric
plant.
 In a Hydroelectric plant, a dam is built on a river with a steep drop in elevation. The dam
creates a reservoir of water behind it. The water is pulled down by gravity through a pipe
called a Penstock inside the Dam.
 At the end of the Penstock, the moving water turns the turbine propeller. The turbine is
connected to a metal shaft that is part of the electric generator, which produces the electricity.
The shaft connected to the turbine goes up into the generator, where electricity is produced.

15. Working:
 The generator works based on a principle discovered by Faraday. When a magnet moves past a
conductor, it creates electricity. In a large generator, electromagnets made of wire wound
around magnetic steel are used. These electromagnets move past conductors, causing
electricity to flow and voltage to develop.
 The generated electricity is then sent through power lines to our homes and mines. The water
that passed through the turbine flows out of the Dam into the river. It's important to stay away
from the water below the Dam.
 Hydroelectric Power mainly comes from the energy of dammed water driving a turbine and
generator. The amount of energy extracted from the water depends on the volume and the
difference in height, known as the head. Pumped storage hydroelectricity is a method that
helps meet high peak demands by moving water between reservoirs at different elevations.

16. Fig: 4 Generator

17. CONTROL SYSTEM
The generation of the electricity is at 11KV and transmitted on 132 KV. There are four
transmission lines from the RPS power plant, two lines to Kota and other two to Bhilwara,
two lines to Gandhi Sagar Dam and one to industrial line.
CONTROL ROOM
The control room is where
operators perform plant
operations using control systems
every day, and a safe,
comfortable, and functional
environment helps operators to
run the plant more efficiently.
BENCH BOARD
Bench Board is a metal board
having all the turbine controls of a
Hydraulic Power Plant. It have
many controls like Penstock gate
control, Excitation control, Speed
Control, Synchronization,
Generator Breaker, etc.

18. PLCC ROOM
PLCC stands for Power Line
Carrier Communication. This
Room has all communication
controls and fault analysis by
finding location of fault.
.
BATTERY ROOM
This room has 110 batteries
each of 2V, 400Amh all
connected in series. The total
power it provides is 220V,
400Amh. It supplies to the
Exciter and Relays.

19.  It controls the switching on, switching off and measure the
Auxiliary Power taken by plant.
AUXILLARY POWER SUPPLY:
Fig: 8 Auxiliary power supply

20. Conclusion:
I am thankful to you entire RPS for providing me this golden opportunity, which made me
to learn a lot of valuable things. In our college, we are taught theoretical knowledge which is
not sufficient to cope up in the industry. So here in RPS,I learn how production activities are
coordinated. Here, I learnt the organizational behavior, which is a very important part of
engineering education. I saw the various production activities which were just taught in the
class room to us. Practical knowledge is entirely different from theoretical knowledge, so it
is very necessary to gain practical aspect of technical knowledge. Here in RPS I learnt
practical knowledge. Here I saw objectives could be achieved by the hard work of a group. It
is the hard work of RPS , which made them the market leader in their field. It was a pleasure
to see the RPS with such devotion.

21. Thank
You