Gulpur Hydropower Plant Project Full Report 2019

GULPUR HYDROPOWER PLANT PROJECT (GHPP)
REPORT
Pakistan’s third independent hydropower project
SUBMITTED TO:
M&E Team / Pakistan Gulpur Hydropower Project
SUBMITTED BY:
Hasnat Amin
Internee E&M Department

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Contents
S.No. Description Page
No.
1 Introduction 3
2 Owner, Employers & Supplier 4-5
3 Salient Features of Dam 6
4 Earthing 7
5 Intake Weir 8-11
6 Construction of Weir 12-15
7 Construction of Powerhouse 16-42
8 Tailrace Channel 43
9 Health, Safety & Environment 44-47
10 Benefits of Project 48
11 Photo Gallery 49
12 Conclusion 50

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1. Introduction
Gulpur Hydropower Plant Project (GHPP) is an under construction, run-of-the-
river hydroelectric generation project located on Poonch River, a major
tributary of Jhelum River near Gulpur in Kotli District of Azad Kashmir,
Pakistan. Gulpur Hydropower Plant will have 102 MW power capacity with
annual generation capability of 465 GWh.
The Project site falls administratively in the Kotli district of AJK and located
about 10 km south of Kotli town and is about 131 km from Islamabad and 294
km from Lahore. The location of the Project is about 99.1 km from Mangla
Dam Reservoir.
Location of Gulpur Hydropower Plant in Pakistan

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2. Owner, Employers & Supplier
• Owner of Project:
Mira Power Limited, is a special purpose company, setup to design, construct,
own, operate and maintain 102 MW Gulpur hydro power plant under
Government of Pakistan’s Policy for Power Generation Projects 2002 as
adopted in Azad Jammu & Kashmir. It is a subsidiary of Korea South East
Power Company Limited (KOEN), which is a leading generation company of
Korea and owns and operates over 9,400MW of power generation capacity.
• Employers of Project:
There are two major employers of this project
1. DAELIM;
2. Lotte E & C.
DAELIM Industrial was established in 1939, and its E&C (Engineering &
Construction) and Petrochemical Groups are the main lead of the Daelim
Business Conglomerate (Chaebol). It is considered one of the top and largest
chaebols ((in South Korea) a large family-owned business conglomerate)
companies in South Korea and has 17 subsidiary companies under its
umbrella.
DAELIM is currently engaged in gas, petroleum refining, chemical and
petrochemical, power and energy plants, building and housing, civil works, and
industrial facilities.

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Lotte Corporation is a South Korean multinational conglomerate. Lotte has an
interesting history.
It was founded in June 1948 in Tokyo, by Korean Businessman Shin Kyuk-ho,
two years after he graduated from Waseda Jitsugyo High School. The company
has grown from selling chewing gum to children, in post-war Japan, to
becoming a major multinational corporation.
Lotte is generally a contracting company engaged in the construction of
residential, commercial, infrastructure and industrial plant projects. It also runs
additional businesses in many major countries like China, India, United States,
United Kingdom, Russia, and Pakistan.
• Leading E&M Supplier of Project:
ANDRITZ AG is an Austrian plant engineering group with headquarters in
Graz. The group gets its name from the district of Andritz in which it is located
and is listed on the Vienna Stock Exchange. It is an international technology
group providing plants, systems, equipment, and services for various
industries. Andritz consists of 4 business areas (Andritz Hydro, Pulp and Paper,
Andritz Metals, Andritz Separation) and ANDRITZ Hydro is one of them.
ANDRITZ Hydro is a global supplier of electromechanical systems and
services for hydropower plants and one of the leaders in the world
market for hydraulic power generation.

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3. Salient Features of Dam
General
Official name Gulpur Hydropower Plant
Location Gulpur, Kotli District, Kotli Town of AJK,
Pakistan
Status Under construction
Construction began January 2014
Commissioning date January 2020
Owner(s) Mira Power Limited
Dam and spillways
Type of dam Gravity, roller-compacted concrete
Impounds Poonch River, a tributary of Jhelum River
Height 35 m (115 ft)
Length 238 m (781 ft)
Reservoir
Total capacity 21,893,000 m3
(17,749 acre⋅ft)
Catchment area 3,625 km2
(1,400 sq mi)
Gulpur Hydroelectric Plant
Operator(s) Korea South-East Power Company
(KOEN)
Commission date January 2020
Turbines 2 x 51 MW Kaplan-type
Installed capacity 102 MW gross
Annual generation 465 GWh

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4. Earthing
Earthing is the process of transferring the immediate discharge of the
electrical energy directly to the earth by the help of the low resistance wire.
It is done by connecting the non-current carrying part of the equipment or
neutral of supply system to the ground. Mostly, the galvanized iron is used for
the earthing. The earthing provides the simple path to the leakage current.
The short circuit current of the equipment passes to the earth which has zero
potential. Thus, protects the system and equipment from damage. Earthing is
the most important thing in a power house.
In Gulpur Hydropower Project Plant (GHPP), everywhere on the Plant site
whether it is Intake, Weir, Powerhouse or Tailrace Channel, you would
observe copper-made cable are getting out of the floor, they are the earthing
cables. At last, before the plant becomes functional it is necessary that
earthing connections be checked through grounding testers. It is
recommended that all grounds and earthing connections be checked at least
annually as a part of your normal predictive maintenance plan.

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5. Intake Weir
From Intake water flows from reservoir at main dam towards powerhouse.
Trash racks are built in front of intake to remove the trash from river water,
so that water flows smoothly around turbines.
Following are the calculated Intake Weir details at Gulpur Hydropower
Project Plant (GHPP);
Gate Nos. 2 EA
Gate Size 10.0 × 12.0m

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• Headrace Tunnel
The water from reservoir enters through the Intake into the Head Race
Tunnel, which runs under pressure supplying water for generation of power to
the power station.
Following are the calculated Head race tunnel details at Gulpur Hydropower
Size D=7.75m
Type Modified horseshoe (Concrete lined)
Length 3,063.5m

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• Pressure Tunnels
A Pressure tunnel is a waterway tunnel under pressure because the hydraulic
gradient lies above the tunnel crown.
In Gulpur Hydropower Plant Project (GHPP), there are two types of pressure
tunnels used Vertical Pressure Tunnel & Horizontal Pressure Tunnel.
Vertical Pressure Tunnel
Following are the calculated Vertical Pressure Tunnel details at Gulpur
Hydropower Project Plant (GHPP);
Type Circular (Concrete Lined)
Length 44.6m
Horizontal Pressure Tunnel
Following are the calculated Horizontal Pressure Tunnel details at Gulpur
Type Circular (Concrete Lined)
Length 71.7m

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• Steel Penstock
A penstock is an enclosed pipe that delivers water to turbines in Hydropower
Plant. In Gulpur Hydropower Plant Project (GHPP), we have two Steel
Penstocks.
Following are the calculated Steel Penstock details at Gulpur Hydropower
Type Circular (Steel Lined)
Length 11.2m × 1EA 28.9m × 3EA
External view (Left Side) Internal view (Right Side)

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6. Construction of Weir
Weir is the place where the river water is stopped by creating a hurdle just like
a wall. Gulpur Hydropower Plant Project (GHPP) has 10 different parts, which
are as follow;
• Basin and Reservoir
A hydroelectric power station consists of turbines that rely on a gravity flow of
water from the dam to turn a turbine to generate electricity. The water can be
either released to the river downstream of the dam or pumped back into the
reservoir and reused. Generally, hydroelectric dams are built specifically for
electricity generation and are also used for drinking and irrigation Purposes.
Following are the calculated Basin & Reservoir details at Gulpur Hydropower
Catchment Area 3,625㎢
NHWL EL.540.0m
L.W. L EL.538.0m
100yr frequency flood 13,340㎥/s
PMF 21,640㎥/s
Reservoir Capacity (NHWL) 21.893 million㎥

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• Main Dam
A dam is a large, man-made structure built to contain some body of water.
They are created mainly for the purpose of producing hydroelectric power, to
control river flow and regulate flooding.
Following are the calculated Main Dam details at Gulpur Hydropower Project
Plant (GHPP);
Type CGD
Design Flood 21,640㎥/s(PMF)
Height 35.0m
Crest EL.545.0m
Length 238.0m

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• Spillway
Spillways are structures constructed to provide safe release of flood waters
from a dam to a downstream are, normally the river on which the dam has
been constructed.
Every reservoir has a certain capacity to store water. If the reservoir is full and
flood waters enter the same, the reservoir level will go up and may eventually
result in over-topping of the dam. To avoid this situation, the flood has to be
passed to the downstream and this is done by providing a spillway which
draws water from the top of the reservoir.
Following are the calculated Spillway details at Gulpur Hydropower Project
Plant (GHPP);
Radial Gate Size W10.0m×6Gates (EL.518.0m)
Under Sluice Gate (Stop Log) Size W10.0m×4Gates (EL.515.0m)
Energy Dissipation Submerged
Bucket
Quantity- 1

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• River Diversion
A diversion is made in the river flow, while the construction of dam is taking
place because to divert the flow of river from its natural course.
In Gulpur Hydropower Plant Project (GHPP), river is diverted through tunnel
from the mountain, and a partial cofferdam is made. River will maintain this
diversion till the completion of the project.
Following are the calculated Cofferdam and its surroundings details at Gulpur
Type Partial cofferdam(1st) + Sheet
File(2nd)
Design Flood 2,517㎥/s (25yr frequency)

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7. Construction of Powerhouse
Powerhouse is the most important part of a Power Plant, where power is
generated and is distributed further into areas through large and heavy
pylons.
Gulpur Hydro Power Plant (GHPP) powerhouse has the following Dimensions
and Electrical Generation details;
Size W74.0m × L31.5m
Turbine Type Kaplan
Installed Net Capacity 102 MW
Annual Generation 465 GWh
Gulpur Hydro Power Plant (GHPP) has a powerhouse, which is divided into 7
major Elevations (or Levels):
• Elevation 502.400m (Ground Level);
• Elevation 496.345m (Control Room);
• Elevation 490.395m (GIS Room);
• Elevation 479.895m (Generator Floor);
• Elevation 473.000m (Mechanical Equip. Maintenance Floor);
• Elevation 464.700m (Turbine Floor);
• Elevation 463.100m (Basement Level).

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1. Elevation 502.400m (Ground Level)
At Elevation 502.400m (Ground Level), we have the following equipment;
• Diesel Generator Fuel Storage Tank
It stores Diesel Fuel for Diesel Generator. It has following dimensions
2970*1990*2775 mm and 6600 kg mass. It has number 1 quantity wise and is
Installed.
• Diesel Generator
It is used as a backup for generating electricity for powerhouse in case power
failure. It has the following dimensions 5200*1604*2404 mm and 5900 kg
mass. It has number 1 quantity wise and is Not Installed yet.
• Fire Fighting Storage tank incl. water
It stores water for firefighting. It has following dimensions 8525*8525*8352
mm and 400000 kg mass. It has number 1 quantity wise and is Installed.
External view (Left Side) Internal view (Right Side)

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• Conditioning Unit
It is used for cooling the outside air. It has the following dimensions
790*1210*1830 mm and 350 kg/m2 capacity. It has number 6 quantity wise
and is Not Installed yet.
• Terminal Box (main gantry crane)
It terminates the wiring of crane in a box. It has the following dimensions
400*300*400 mm and 50 kg mass. It is number 1 quantity wise and is
Installed.
• Tail water level sensor & holder
It is a sensor used to check water level around powerhouse. It has the
following dimensions 4000*2500*2000 mm and 50 kg mass. It is number 1
quantity wise. It is Not Installed yet.

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2. Elevation 496.345m (Control Room)
At Elevation 496.345m (Control Room), we have the following equipment;
• Control Cubicle
It is a Cube-shaped box which contains main switches and wiring of
powerhouse. Each control cubicle has the following dimensions
800*800*2260 mm and 300-400 kg mass. It has number 21 quantity wise and
out of them only six (6) of them are Installed.
• Lighting Distribution Box
It is a box which has lighting connections. Each Lightening Distribution box has
the following dimensions 800*800*2260 mm and 300-400 kg mass. It has
number 2 quantity wise. They are Not Installed yet.
• Air handling unit (AHU)
It is a unit controlling air in the powerhouse. Each AHU has the following
dimensions 4000*1000*1000 mm and 200kg/m2 capacity. It has number 2
quantity wise. They are Not Installed yet.
• Computers/ office equipment
Computers used for controlling power house and it is also used for
communication purposes. Each computer has following dimensions
1800*900*800 mm and 20 kg mass. It has number 6 quantity wise. They are
Not Installed yet.

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3. Elevation 490.395m (GIS Room)
At Elevation 490.395m (GIS Room), we have the following equipment;
• Battery
It stores DC power. Each Battery has the following dimensions 210*233*695
mm and each cell has 82kg mass. It is placed in Battery Room and has number
102*2 quantity wise. They are Installed.
• Battery Fuse Box
It is a Box containing Battery Fuses. Each Battery Fuse Box has the following
dimensions 500*250*700 mm and has 300kg mass. It is placed in DC Room
and has number 2 quantity wise. They are NOT Installed yet.
• DC System Panel (including charger)
It is a Panel containing DC System (Battery) Charging equipment. Each DC
System Panel has the following dimensions 1000/800*800*2200 mm and has
340kg mass. It is placed in DC Room and has number 4 quantity wise. They are
NOT Installed yet.

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• Step-up Transformer for Intake 0.4/11kV
It is used for Stepping up the Voltage. Each Step-up Transformer for intake has
the following dimensions 1700*1300*1600 mm and has 1900 kg mass. It is
placed in AC Distribution Room and has number 1 quantity wise. It is Installed.
• 400V Distribution Board
It is a board that distributes 400V in powerhouse. Each 400V Distribution
Board has the following dimensions 800/600*600*2260 mm and has 500 kg
mass. It is placed in AC Distribution Room and has number 26 quantity wise. It
is NOT Installed yet.
• Station Service Transformer
It is a transformer for Powerhouse own use. Each Station Service Transformer
has the following dimensions 2100*1400*2300 mm and has 4400 kg mass. It is
placed in AC Distribution Room and has number 2 quantity wise. It is NOT
Installed yet.
• GIS System equipment
Gas-insulated high-voltage switchgear (GIS) is a compact metal encapsulated
switchgear consisting of high-voltage components and sulfur hexafluoride
(SF6) gas as the insulating medium. Its equipment has 2000-5500 kg mass. It is
placed in GIS Room and has number 7 quantity wise. Its Installation is in
process.

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4. Elevation 479.895m (Generator Floor)
At Elevation 479.895m (Control Room), we have the following equipment;
• Excitation Transformers
They are used to ultimately provide power to the field windings. Each
Excitation Transformer has the following dimensions 2000*1400*2500 mm
and has 3000 kg mass. It is placed in Medium Voltage (MV) Room and has
number 2 quantity wise. It is Installed.
• Unit Generator Switchgear
They are combination of electrical disconnected switches, fuses or circuits
breakers used to control, protect and isolate electrical equipment. Each Unit
Generator Switchgear has the following dimensions 3800*2285*2780 mm and
has 3200 kg mass. It is placed in Medium Voltage (MV) Room and has number
2 quantity wise. It is Installed.

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• Step-Up Transformer
It is a transformer which increases the alternating voltage level. Each Step-Up
Transformer has the following dimensions 7809*3365*6642 mm and has
77000 kg mass. It has number 3 quantity wise and each 3 of them are placed in
their respective Transformer Rooms. They are Installed.
• Cubicles
Also known as Panels, is a box containing combination of electrical
disconnected switches, fuses or circuits breakers used to control, protect and
isolate electrical equipment. Each Cubicle has the following dimensions
800*800*2260 mm and has 500 kg mass. It has number 24 quantity wise and
they will be placed in two groups (each containing 12 cubicles) in front of Store
Room open area. They are NOT Installed yet.

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• Lighting Distribution Box
Lighting Distribution Boards (LDB) are an integral and essential part of every
building project and it must be designed, manufactured and installed all in
accordance with the safety standards. Each Lighting Distribution Box (LDB) has
the following dimensions 800*300*1500 mm and has 200 kg mass. It has
number 3 quantity wise and they will be placed in Medium Voltage (MV)
Room. They are NOT Installed yet.
• Lathe (Dia.500mm*L750mm)
A lathe is machine that rotates a workpiece about an axis of rotation to
perform various operations such as cutting, sanding, drilling, etc. Each Lathe
(Dia.500mm*L750mm) has the following dimensions 2500*1300*200 mm and
has 3000 kg mass. It has number 1 quantity wise and they will be placed in
Mechanical Work Room. They are NOT Installed yet.
(Dia.320mm*L750mm) has the following dimensions 2500*1300*200 mm and
has 3000 kg mass. It has number 1 quantity wise and they will be placed in
Mechanical Work Room. It is NOT Installed yet.
(Dia.500mm*L1000mm) has the following dimensions 2500*1300*200 mm
and has 3000 kg mass. It has number 1 quantity wise and they will be placed in

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• Gap-bed Lathe
Same as lathe except that Gap-bed Lathe can be adjusted to machine larger
diameter and longer workplaces. The operator can increase the swing by
moving the bed a distance from the headstock, which is usually one or two
feet. Each Gap-bed Lathe has the following dimensions 1800*800*750 mm
and has 800 kg mass. It has number 1 quantity wise and it will be placed in
• Shaper (Max. Shaping Length:630mm)
It is a type of machine tool that uses linear relative motion between the
workpiece and a single-point cutting tool to machine a linear toolpath. Each
Shaper (Max. Shaping Length:630mm) has the following dimensions
2500*2300*2200 mm and has 5000 kg mass. It has number 1 quantity wise
and it will be placed in Mechanical Work Room. It is NOT Installed yet.
• Shaper (Max. Shaping: L630mm*W1000mm)
It is a type of machine tool that uses linear relative motion between the
workpiece and a single-point cutting tool to machine a linear toolpath. Each
Shaper (Max. Shaping: L630mm*W1000mm) has the following dimensions
• Vertical Drill
It is an upright drill. Each Vertical Drill has the following dimensions
• Hacksaw Machine
It is used to cut large sizes (sections) of metals such as steel. Each Hacksaw
Machine has the following dimensions 1500*600*1200 mm and has 200 kg
mass. It has number 1 quantity wise and it will be placed in Mechanical Work
Room. It is NOT Installed yet.

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• HVAC Control Cubicle
It is a cubicle containing HVAC cables and its controls. HVAC Control Cubicles
have two different dimensions one is 1000*800*2200 mm & other
800*800*2200 mm and both of them have equal mass which is 650 kg. HVAC
Control Cubicle (1000*800*2200) has number 1 quantity wise and other HVAC
Control Cubicle (800*800*2200) has number 2 quantity wise. It will be placed
in front of Store Room open area in the middle of 24 Cubicles. It is NOT
Installed yet.
• Deluge Valve
It is used for the detection of smoke or heat in powerhouse. Each Deluge Valve
has the following dimensions 450*400*400 mm and has 31 kg mass. It has
number 2 quantity wise and it will be placed beside Transformer Room # 2. It
is NOT Installed yet.
• Terminal Box drainage and dewatering
It terminates wiring of drainage and dewatering pumps in a box. Terminal Box
drainage and dewatering has the following dimensions 1000*300*1000 mm
and has 80 kg mass. It has number 1 quantity wise and it will be placed beside
Store Room Entrance Door. It is NOT Installed yet.
• Terminal box (bridge crane)
It terminates wiring of bridge crane in a box. Terminal box (bridge crane) has
the following dimensions 400*300*400 mm and has 50 kg mass. It has number
1 quantity wise and it is placed beside Bridge Crane. It is Installed.

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5. Elevation 473.000m (Mechanical Equip. Maintenance Floor)
At Elevation 473.000m (Mechanical Equip. Maintenance Floor), we have the
following equipment, each equipment location here is defined with respect to
Stair 3;
• CO2 firefighting system
In this system, CO2 gas used for firefighting. Each CO2 firefighting system has
number 2 quantity wise and it will be placed adjacent left to Both Units. It is
NOT Installed yet.
• Generator neutral earthing cubicle
Generator neutral earthing equipment accommodated in a cubicle. Each
Generator neutral earthing cubicle has the following dimensions
and it will be placed adjacent left to Both Units. Only one which is of Unit #2
of is Installed.
• Braking-lifting panel
It controls equipment containing brakes and a jack for braking and lifting.
Each Braking-lifting panel has the following dimensions 1250*184*650 mm
and has 50 kg mass when empty and 53 kg mass when full. It has number 2
quantity wise and it will be placed adjacent left to Both Units. Only one which
is of Unit #2 of is Installed.

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• Lifting Plant
It is a machine used to lift heavy weights. Each Lifting Plant has the following
dimensions 899*480*914 mm and has 220 kg mass when empty and 297 kg
mass when full. It has number 2 quantity wise and it is placed adjacent left to
Both Units. Only one which is of Unit #2 of is Installed.
• Brake dust exhaust
It exhausts dust particles from brakes of turbines. Each Brake dust exhaust
has the following dimensions 700*700*1900 mm and has 200 kg mass. It has
number 2 quantity wise and it will be placed adjacent Right to Both Units.
Only one which is of Unit #2 of is Installed.

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• Oil vapor exhaust UGB
It exhausts out oil vapors (mist) and other contamination from a gas stream
in Upper Ground Bearing (UGB) pumping operations. Each Oil vapor exhaust
UGB has the following dimensions 400*400*1500 mm and has 25 kg mass. It
has number 2 quantity wise and it will be placed adjacent Right to Both Units.
Only one which is of Unit #2 of is Installed.
• Oil vapor exhaust LCB
It exhausts out oil vapors (mist) and other contamination from a gas stream
in Lower Combined Bearing (LCB) pumping operations. Each Oil vapor
exhaust LCB has the following dimensions 400*400*1500 mm and has 25 kg
mass. It has number 2 quantity wise and it will be placed adjacent Right to
Both Units. Only one which is of Unit #2 of is Installed.

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• Oil cooling plant LCB
It cools down the oil vapors coming from oil vapor exhaust LCB. Each Oil
cooling plant LCB has the following dimensions 2600*1850*1447 mm and has
1900 kg mass when empty and has 2050 kg mass when full. It has number 2
quantity wise and it will be placed adjacent Right to Both Units. Only one
which is of Unit #2 of is Installed.
• High pressure oil plant
It provides high pressure to the oil coming from the cooling plant. Each High-
pressure oil plant has the following dimensions 1186*400*945 mm and has
110 kg mass when empty and has 111 kg mass when full. It has number 2

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• Oil hydraulic Turbine Governor HPU
It provides high pressure oil from High pressure oil plant to the Turbine
Governor. Each Oil hydraulic Turbine Governor HPU has the following
dimensions 4000*2500*2500 mm and has 6200 kg mass. It has number 2
• Turbine Governor Pressure Accumulator
It maintains the Oil Pressure in the Governor. Each Turbine Governor
Pressure Accumulator has the following dimensions 3000*1500*5000 mm and
has 10,000 kg mass. It has number 2 quantity wise and it will be placed
adjacent Right to Both Units. Only one which is of Unit #2 of is Installed.

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• Digital Turbine Governor Control Cabinet
It contains digital control of Governor which controls speed and output
power (frequency) of turbines. Each Oil hydraulic Turbine Governor HPU has
number 2 quantity wise and it will be placed adjacent Right to Both Units. It is
Not Installed yet.
• Compressor
It is a mechanical device that increases the pressure of a gas by reducing its
volume. Each Compressor has the following dimensions 1000*800*2000 mm
and has 1000 kg mass. It has number 2 quantity wise and will be placed First
Left and Between Unit 1 & Unit 2 (w.r.t. Stair 3). It is Installed.

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• Air Tank
It stores compressed air. This single Air Tank has the following dimensions
1200*1200*2500 mm and has 700 kg mass. It will be placed Left Side of
Compressor (w.r.t. Stair 3). It is Installed.
• Air Tank
It stores compressed air. Each Air Tank has the following dimensions
will be placed on Both sides of Compressor (w.r.t. Stair 3). It is Installed.

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• Open Circuit Filter
It is a circuit containing capacitors, used for Noise control in wires. Each Open
Circuit Filter has the following dimensions 850*700*1700 mm and has 1000 kg
mass. It has number 4 quantity wise and will be placed behind both Units
(adjacent to Powerhouse Back wall) (w.r.t. Stair 3). It is Installed.
• Cooler PGA21/22/32 AC001
It is a cooler used to cool the water. Each Cooler PGA21/22/32 AC001
has the following dimensions 1200*800*2000 mm and has 1500 kg mass. It
has number 6 quantity wise and will be placed in front of Open Circuit Filter
(16) (w.r.t. Stair 3). It is Installed.

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• Closed Circuit Pumps
It is a circuit where the motor return is connected directly to hydraulic pump
inlet, they maintain pressure in loop. Each Closed-Circuit Pump has the
following dimensions 1300*500*600 mm and has 1000 kg mass. It has number
4 quantity wise and will be placed in front of Cooler PGA21/22/32 AC001 (17)
(w.r.t. Stair 3). It is Installed.
• Accumulator Closed Circuit
It is used to increase efficiency, provide smoother, more reliable operation,
and store emergency power in case of electrical failure. Each Accumulator
Closed Circuit has the following dimensions 1000*1000*2500 mm and has
1500 kg mass. It has number 2 quantity wise and will be placed in front of
Digital Turbine Governor Control Cabinet (12) (w.r.t. Stair 3). It is Installed.

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• Mobile Oil Purification
It purifies oil which is moving in the turbine's shaft. This Single Mobile Oil
Purification has the following dimensions 1000*700*1800 mm and has 500 kg
mass. It will be placed in front of Stair 3. It is NOT Installed yet.
• Oil Storage Tank
It stores turbine's shaft oil. Each Oil Storage Tank has the following
dimensions 3780*2000*2200 mm and has 11300 kg mass. It has number 2
quantity wise and will be placed in front of Stair 3. It is NOT Installed yet.
• Mobile Oil Pump
It circulates oil under pressure to the rotating parts of Turbine's Shaft. Each
Mobile Oil Pump has the following dimensions 1200*500*1500 mm and has
200 kg mass. It has number 2 quantity wise and will be placed in front of Stair
3. It is NOT Installed yet.
• Dewatering Needle valve
It is used for fine-control of water flow. Each Dewatering Needle valve has
number 2 quantity wise and is placed on Elevation 464.700m on left of each
Penstock. It is Installed.

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• Air Handling Unit (AHU)
It is used to recondition & circulate air as a part of heating, ventilating & air
conditioning system (HVAC). Each Air Handling Unit (AHU) has the following
dimensions 6800*2060*1560 mm and has CAPACITY of 200 kg/m2. It has
number 2 quantity wise and is placed Infront and on the side of Holding Tank
(w.r.t. Stair 3). It is Installed.
• Terminal Box cooling system
It contains wiring and control of AHU. Each Terminal Box cooling system has
number 2 quantity wise and will be attached with wall at the right side of
Open Circuit Filter (16) (w.r.t. Stair 3). It is NOT Installed yet.
• Terminal box service air
It contains wiring and control of air contained in Air Tanks. This Single
Terminal Box service air has the following dimensions 600*250*600 mm and
has 80 kg mass. It is placed at the back side of Compressor (13). It is Installed.

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• Terminal Box Turbine
It contains main wiring and control of turbine. Each Terminal Box Turbine has
number 4 quantity wise and is placed inside the wall of Both Units. It is
Installed.
• Terminal Box Generator
It contains main wiring and control of generator. Each Terminal Box
Generator has the following dimensions 800*300*1200 mm and has 80 kg
mass. It has number 2 quantity wise and will be placed on right Side of both
Units, adjacent to Brake dust exhaust (5) (w.r.t. Stair 3). It is NOT Installed
yet.

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6. Elevation 464.700m (Turbine Floor)
At Elevation 464.700m (Turbine Floor), we have the following equipment;
• Lamella separator
It will be used for the treatment of water from penstock which will later be
provided to the Shaft seal of Turbines. Each Lamella separator has the
following dimensions 3120*2246*4420 mm and has 26200 kg mass. It has
number 2 quantity wise and is placed between both the Penstock. It is
Installed.
• Clean water tank (not including concreted structure)
It is used to store clean water coming from the Lamella separator. Each Clean
water tank has the following dimensions 2000*2000*1600 mm and has 8000
kg mass. It has number 2 quantity wise and is placed between two penstocks,
adjacent Lamella separator. It is Installed.

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• Shaft seal pump
It will be used for cooling the water in the clean water tank. Each Shaft seal
pump has the following dimensions 300*300*1000 mm and has 300 kg mass.
It has number 4 quantity wise and is placed between the two penstocks,
adjacent to Clean water tank. It is Installed.
• Terminal box shaft sealing water supply
It is a box containing all the wires and controls of shaft seal pumps. Each
Terminal Box shaft sealing water supply has the following dimensions
will be placed between both the penstocks, behind Shaft seal pump. It is NOT
Installed yet.
• Terminal box penstock acoustic flow measurement
It measures water flow in penstock. Each Terminal Box penstock acoustic
flow measurement has the following dimensions 400*100*400 mm and has
80 kg mass. It has number 4 quantity wise and will be placed adjacent to
Dewatering needle valve, attached with the back wall. It is NOT Installed yet.

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• Flocculation dosing
It contains chemical reagents, used to separate solids from the liquid phase.
Each Flocculation dosing has the following dimensions 800*800*1500 mm and
has 1000 kg mass. It has number 2 quantity wise and will be placed in front of
Lamella separator. They are NOT Installed yet, but are just placed at the back
of Lamella Separator.
• Mud pumps
It will be used to separate mud particles from the filter in Lamella Separator.
Each Mud pump has the following dimensions 1500*400*400 mm and has 200
kg mass. It has number 2 quantity wise and are placed at the bottom of
Lamella separators. They are Installed.

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7. Elevation 463.100m (Basement Level)
At Elevation 463.100m (Basement Level), we have the following equipment;
• Dewatering Pump
It is used for the removal of water either from a solid, or from a structure.
Each Dewatering Pump has the following dimensions 2000*1000*2500 mm
and 2000 kg mass. It is number 2 quantity wise. There Installation is in process.
• Drainage Pump
It drains out the water coming from dewatering pump to Tailrace Channel.
Each Drainage Pump has the following dimensions 1800*800*1500 mm and
1000 kg mass. It is number 2 quantity wise. They are Not Installed yet.
• Leakage Pump
It is used for removing out the water from dewatering sump pit, in case of
leakage. Each Leakage Pump has the following dimensions 250*250*500 mm
and 25kg mass. It is number 1 quantity wise. It is Not Installed yet.

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8. Tailrace Channel
The tail race, containing tail water, is a channel that carries water away from
a hydroelectric plant. The water in this channel has already been used to
rotate turbine blades. After, rotating the turbine blades water leaves
the power generation unit (or power house) and joins the natural flow of
water.
Gulpur Hydro Power Plant (GHPP) Tailrace Channel has the following
specifications:
Type Open Channel
Length 50.0m
Width 45.0m

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9. Health, Safety & Environment
In the workplace, health and safety regulations are very important to the well-
being of the employees and the employer. Many hazards are present in today's
work environments, and it's the employer's job to keep their employees
safe from these hazards.
In Gulpur Hydropower Plant Project (GHPP), there is a separate department
of Health, Safety & Environment (HSE) which deals with all kinds of health,
safety and environmental issues. It regulates 24/7.

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• Health:
Health and safety procedures in the workplace reduce the employee illnesses
and injuries greatly, therefore more productivity.
In Gulpur Hydropower Plant Project (GHPP), health awareness is given
intensively in form of regular A4 laminated posters placed on walls and doors
of site offices, working sites, hostels, mess and even in toilets.

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• Safety:
Workplace injuries and unsafe working environments are bad for employee
morale. An employee who is concerned about being hurt isn't able to devote
full attention to daily work tasks. Employers who maintain a safe and healthy
work environment and conduct employee training on safety build a stronger
relationship with employees.
In Gulpur Hydropower Plant Project (GHPP), safety awareness is given on
daily basis in Tool Box Meeting (TBM) and also in the form of regular A4
laminated posters placed on walls and doors of site offices and working sites.

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• Environment:
The physical environment of a workplace greatly affects the positivity within
the firm. Great energy can be created by an, attractive, comfortable physical
environment. This energy ultimately enhances productivity and success.
In Gulpur Hydropower Project Plant (GHPP), environment is given high
priority, as it is a National Park. HSE team is working 24/7 to maintain a
healthy and a safe environment for its employees and surroundings.

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10. Benefits of Project
On the completion of Gulpur Hydropower Plant Project (GHPP), it can
make substantial contributions at local, regional, national and
international levels like;
• Biggest achievement of this project is the enhancement of relation
between Pakistan and South Korea.
• This will provide macro-economic benefit which is ‘employment’ for
the locals and the rest of the country’s population.
• This will provide benefits for the locals in case of education quality and
transport facility.
• It will be a cheap source of electricity as it uses abundant renewable
energy resource ‘water’.
• It will generate about 465 GWh of inexpensive electricity annually to
earn revenue of about Rs 1 billion.
• Being an environment friendly hydropower project, it will help reduce
dependence on expensive thermal power, thereby saving foreign
exchange amounting to $36 million (equivalent to Rs 3 billion) to the
country.
• It will increase awareness of the areas nearby, as the plant area
becomes recreational, tourists will come to visit it.
• It will increase Environmental Stewardship, as this prompt enhanced
exploration and study of the inhabitants.
• It will assist in the reduction of vulnerability to both droughts and
floods, preventing the loss of life and property of communities living
near river.
• As Pakistan is an agricultural country, this dam will provide advantage
to farmers in irrigation.

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11. Photo Gallery
Day view of Site
Night view of Site

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12. Conclusion
It was amazing to be a part of E&M Team of Gulpur Hydropower Plant Project
(GHPP). It was the first time, i have seen a hydropower plant.
Before coming here my concept for hydropower was totally different, I would
think that the weir structure contains the turbine and other electrical power
generation equipment, but in reality, it was totally different process. So, at
Gulpur Hydropower Plant Project (GHPP) I learnt that there are four main
areas of Hydropower Plant;
• Intake (5)
• Weir (6)
• Powerhouse (7)
• Tailrace channel (8)
Second thing, I learnt at Gulpur Hydropower Plant Project (GHPP), is to study
Arrangement Drawings, which i think is the most important thing to work at
any Project site.
Thirdly, I saw internal structure of turbine, penstock, Rotor, stator and other
equipment physically.
Lastly, I learnt about the Power House Power Cable installation list and how
to update their status.
Overall, it was a great experience working with E&M Team of DAELIM-LOTTE
JV (102MW Gulpur Hydropower Project Kotli Azad Jammu & Kashmir).
Thank You!
THE END

Gulpur Hydropower Plant Project Full Report 2019

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