2

Presented By:Maria Komal(2010-EE-547)

Department of Electrical EngineeringRachna college of engineering and Technology

Gujranwala, A constituent college of UET Lahore.

3

Gujranwala Hydel Power Station, Nandipur

4

Nandipur Hydel Power Plant Constructed By RADE KONCARInstalled Capacity 13.8MWNo. of units 3Capacity of each unit 4.6MWHead of water 24.4ftTotal cost of project 56.22MILStation Grid 66KV

5

Low head hydel power Station

Low head hydro power applications use river current or tidal

flows of 20 meters (approximately 66 feet) or less to produce

energy.

No need to dam or retain water to create hydraulic head.

The head is only a few meters.

output varies with seasonal changes in stream flow

6

Shaft On which rotor and turbine are mounted

7

Kaplan turbine Speed 107rpm Runway speed 280rpm Head 22ft o/p 6500hp

8

Rotor Speed 107rpm Poles 56 Winding wave

10

Permanent magnet generator DC gen, 120V, 14A, 107/276rpm

Pilot exciter

3~ gen, 400V, 4.3 A, 107/276rpm

Main pilot

Dc gen, 120V, 459A, 107/276rpm

3~ Generator

3.3KV

1010A

107/276rpm

11

Grid Station 8.5MVA

5.75MVA

13

Air Circuit BreakerAir Blast isolator

Potential Transformer Current Transformer

Battery room

55 batteries of 12 volts connected in series were connected

with the pilot exciter and other dc operated equipments

16

CONTROL ROOM

17

Synchroscope

System Frequency & indent Frequency Needle is move

able,In clock wise and anti clock wise direction to synchronizesystem and indent

Block diagram of single unit

Front bus bar

Rear bus bar

Emergency stop Guide blades opening

Synchronizing switch

18

Feeders panel5 feeders, 1 under faultVolts (KV)Current (A)

Transformer Voltage5750KVA, 8.5MVA, 250KVAVoltage current

19

Bus Bar couplingCurrent

Bus Bar VoltageVoltage

Unit panel3 units , 1 under faultVoltage Mega wattsFrequency

20

GeneratorKilo VoltsCurrent

Generator Protection Differential relay over current relayOver voltage relayStator earth leakage relayRotor earth leakage relayReserve power protection

21

AVRAutomatic voltage regulatorVoltage 100VCurrent 19A25VAFrequency 50Hz

22

SignalizationLight signal offSignal bulb testingAlarm horn off steady lightAlarm bulb off

23

Temperature Turbine

◦Lower guide bearing◦Upper guide bearing◦Thrust bearing

Generator◦Windings◦Core◦Cold air◦Hot air

Transformer

24

Governor

Air vessel

◦Operating pressure 20kg/sq. cm

◦Volume 2 cubic meter

Oil vessel

◦Operating pressure 20kg/sq.cm

◦Volume 2 cubic meter

25

Cooling systemExciter fanExhaust fanGrease pumpCooling oil pumpOil leakage pumpWater leakage pumpAir leakage pumpGovernor oil pumpAuxiliary pumpDrainage pump

26

Any Question????

27

Thank you