GGEL 50MW SOLAR THERMAL POWER PLANT

SUMITTED TO: SUBMITTED BY:

Mr. VINAY KUMAR GUPTA BANWARI LAL

Assistant Professor B.Tech (E.E.)

DEPARTMENT OF Electrical Engg. SEMESTER–7th

PRATAP UNIVERSITY JAIPUR. ROLL NO.- EE110006

INTRODUCTION

GODAWARI GREEN ENERGY LIMITED (GGEL) IS A FLAGSHIP COMPANY OF THE HIRA GROUP IN THE RENEWABLE ENERGY SECTOR.

GGEL’S FOCUS AREA IS POWER GENERATION USING RENEWABLE SOURCES SUCH AS SOLAR ENERGY, GEOTHERMAL ENERGY, WIND ENERGY ETC.

THE COMPANY WAS INCORPORATED AS A 100% SUBSIDIARY OF THE GODAWARI POWER & ISPAT LTD IN THE YEAR 2009.

WORKING PRINCIPLE OF CSP

HTF CYCLE

SUPERHEATER & REHEATER S

387°C

EVAPORATOR

308°C

ECONOMISER & REHEATER E

291°C

EXPANSSION

VESSEL

SOLAR FIELD

HTFPUMP

WATER CYCLE

SUPERHEATER

379°CREHEATER E &

S

HP TURBINE

LP TURBINE

BFP

180°CWATER SOURCE

DM

PLANT

HP HEATER

284°C

ECONOMISER

295°C

STEAM DRUM &

EVAPORATOR

295°C

CONDENSOR

HOT WELL

DEAERATOR

REHEATER E & S

BLOCK DIAGRAM OF TURBINE-ALTERNATOR CONNECTION

   

 

 

 

 

LP TURBINE

LP STEAM

DIRECT CONNECTION

INDIRECT CONNECTION HP STEAM

ALTERNATOR

GEAR BOXHP

TURBINE

ABBREVIATIONS

UAT – UNIT AUXILIARY TRANSFORMER SST – STATION SERVICE TRANSFORMER BFP – BOILER FEED PUMP CCWP – CLOSE COOLING WATER PUMP ACWP – AUXILIARY COOLING WATER PUMP HTF – HEAT TRANSFER FLUID JOP – JACKING OIL PUMP GSC – GLAND STEAM CONDENSOR

ABBREVIATIONS

MOP – MAIN OIL PUMP AOP – AUXILIARY OIL PUMP EOP – EMERGENCY OIL PUMP CEP – CONDENSATE EXTRACTING PUMP CT FAN – COOLING TOWER FAN CWP – CIRCULATING WATER PUMP MOG – MAGNETIC OIL GAUGE PRV – PRESSURE RELEAVE VALVE

POWER DISTRIBUTION BLOCK DIAGRAM

GEN.70.5 MVA10.5 KV

GSU T/F75 MVA

10.5/132 KV

UAT7.5 MVA

10.5/6.6 KV

SST-12.5 MVA

10.5/0.440 KV

SST-22.5 MVA

10.5/0.440 KV

SST-31.5 MVA

6.6/0.440 KV

SST-4750 KVA

6.6/0.440 KV

HV MOTORS1.BFP-1/2/32.HTF PUMP-1/2/3/43.CWP-1/2/3

LV MOTORS1. CEP 8. VACUUM PUMP 15. SEAL WATER PUMP2. MOP 9. OIL MIST FAN 16. HTF SEAL PUMP3. AOP 10. CONTROL OIL PUMP 17. LUBE OIL PURIFIER4. EOP 11. AIR COMPRESSOR 18. CONTROL 5. JOP 12. CT FAN OFFLINE PUMP 6. CCWP 13. TURBINE GEAR7. ACWP 14. GSC

GEN. BREAKER

UAT BREAKER

BREAKER

BREAKER

HTF HEATER PUMP RW SUPPLY PUMP

R

Y

B

SWITCHING YARD

POWER DISTRIBUTION TO THE TRANSFORMERS

  UAT

GEN.

SST-1   SST-2

POWER T/F

1. TURBINE IS NOT RUNNING.(GRID IS AVAILABLE)

2. TURBINE IS RUNNING.(GRID IS NOT AVAILABLE)

SG

SGPOWER T/F

UAT SST-1 SST-2

GEN.

132KV

132KV

10.5KV

10.5KV

GENERATOR

IT IS A DEVICE THAT CONVERTS MECHANICAL ENERGY INTO ELECTRICAL ENERGY.

IT WORKS ON THE PRINCIPLE OF EMI(ELECTRO-MAGNETIC INDUCTION) OF FARADAY.

IT IS CONNECTED TO LP AND HP TURBINE DIRECT AND INDIRECT RESPECTIVELY.

HERE THE ELECTRICITY IS GENERATED AT 10.5KV.

RATED

POWER-

70.590MVA

RATED

VOLTAGE –

10500V+/- 10% V

RATED

CURRENT –

3881 A

ACTIVE POWER

-50 MW

SPEED – 3000rpm

GENERATOR SPECIFICATIONS

MACHINE CODE SGEN5-100A-2P

RATED VOLTAGE 10500V +/- 10%

RATED POWER 70590 KVA

PHASES 3

CONNECTION STAR

FREQUENCY 50 Hz

P.F.(COSF) 0.708

RATED CURRENT 3881 A

EXCITATION SELF

RATED SPEED 3000 rpm

INSULATION CLASS

F

AMBIENT TEMP. 50C

PHASE SEQUENCE U1 V1 W1

IP 54

IM 7216

ACTIVE POWER 50 MW

TOTAL WEIGHT 116.800 Kg

COOLING TYPE AIR

TRANSFORMER – 75 MVA (10.5KV/132KV)

IT IS AN ELECTRICAL DEVICE THAT TRANSFER ELECTRICAL ENERGY FROM ONE SIDE TO ANOTHERSIDE WITHOUT CHANGE IN ITS FREQUENCY.

TRANSFORMER IS USED TO CONVERT 10.5KV INTO 132KV FOR TRANSMISSION TO GSS(GRID SUB-STATION).

MARSHAILING BOX

10.5 KV INPUT

132KV OUTPUT

GSU TRANSFORMER

COOLINGFAN

REFERENCE STANDARD

IS:2026

CORE & WDG MASS

38900Kg

TANK & FITTING MASS

14900Kg

OIL MASS 17200Kg

TOTAL T/F MASS 71000Kg

TRANSPORT MASS 66000Kg

TOTAL OIL QUANTITY

20200 Liters

OVERALL DIMENSIONS

6.754.205.90 m

TRANSPORT DIMENSIONS

5.302.503.75 m

GSU TRANSFORMER PHYSICAL SPECIFICATIONS

TEMP. RISE OF OIL

60C

TEMP. RISE OF WDG

65C

AMBIENT TEMP. 50C

TYPE OF COOLING

ONAN/ONAF

TANK PLATE THICKNESS

COVER 12 mm

BOTTOM 16 mm

SIDE 8 mm

SWITCHING YARD

THE APPLICATION OF SWITCHYARDS IS TO

DELIVER THE GENERATED POWER FROM

POWER PLANT AT DESIRED VOLTAGE LEVEL TO

THE NEAREST GRID OR TRANSMISSION LINE. THE SWITCHYARD IS PROVIDED WITH NECESSARY

ISOLATORS, CIRCUIT BREAKERS, CURRENT TRANSFORMER, POTENTIAL TRANSFORMERS, SURGE ARRESTORS, WAVE TRAPS, PROTECTIVE RELAYS, PLCC ETC.

SWITCHYARD IS CONTROLLED FROM DCS WHICH WILL BE LOCATED IN POWER BLOCK CONTROL ROOM.

 

CONNECTION OF T/F’S

UAT CONNECTION

UAT

7.5 MVA 10.5KV/6.6KV

SST-3 1.5 MVA

6.6KV/0.440KV

SST-4750KVA

6.6KV/0.440KV

BFP(3) 875 KW 6300V 96A

3071rpm

HTFP(4) 900KW 6300V 101A

2970rpm

CWP(3) 510KW 6300V

58A 986rpm

RAW WATER PUMP SUPPLY

HTF HEATER

SPARE MOTOR FEEDER

LOAD DISTRIBUTION FROM UAT

THE HV MOTORS(HTF, BFP & CWP) ARE CONNECTED TO UAT TRANSFORMER.

THE TOTAL POWER DISTRIBUTED TO HT MOTORS IN BOTH CASES ARE:

IN NORMAL CONDITION – 5470 KW TOTAL LOAD CONNECTED – 7755 KW

SST-1 CONNECTION TO LOADS

SST-12.5 MVA

10.5/0.440 KV

CONDENSATE PUMP 1&3

220 KW 415 V 193 A

1488 rpm

JOP 1&2 30 KW 415 V 27.1 A

1455 rpm

CT FAN 1&3 150 KW 415 V 132 A

1482rpm

VACUUM PUMP-1 55 KW 415 V 96 A

CCWP 1&2 90 KW 415 V 78 A

2955 rpm

AOP 2 45 KW 415 V 78.4 A

1470 rpm

ACWP-1 55 KW 415 V 95.6 A

1475 rpm

AUXILIARY LOAD

150 KW

AIR COMPRESSOR

-2 37 KW 400 V

2965 rpm

COP 16 KW 415 V

TOTAL LOAD = 848 KW

SST-2 CONNECTION TO LOADS

SST-22.5 MVA

10.5/0.440 KV

CT FAN-2 75 KW415 V132 A

1482 rpm

MOP45 KW415 V78.4 A

1470 rpm

AIR COMPRESSOR

-137 KW400 V

2965 rpm

VACUUM PUMP-255 KW415 V96 A

CONDENSATE PUMP-2110 KW415 V193 A

1488 rpm

ACWP-255 KW415 V95.6 A

1475 rpm

COP 16 KW

AUXILIARY LOAD

88.6 KW

TOTAL LOAD = 481.6 KW

SST-4 CONNECTED LOAD

SST-4750KVA

6.6/0.440KV

RAW WATER MAKEUP PUMP (2)

18.5KW 415V 31.5A

2929rpm

WASTE WATER

PUMP (2) 1.5KW 415V 3.4A

1410rpm

TOTAL LOAD = 40

KW

LOAD DISTRIBUTION FROM SST

THE LV MOTORS(CEP, CCWP, ACWP & VACUUM PUMP etc.) ARE CONNECTED TO SST TRANSFORMERS.

THERE ARE 4 SST TRANSFORMER - SST-1, SST-2, SST-3, SST-4.

THE TOTAL LOAD CONNECTED TO EACH OF THE SST IN BOTH CASE ARE:

SST-1 IN NORMAL CONDITION – 545.6 KW THE TOTAL LOAD CONNECTED – 848KW

LOAD DISTRIBUTION FROM SST

SST-2 IN NORMAL LOAD CONDITION – 364.2 KW TOTAL LOAD CONNECTED – 481.6 KW

SST-4 IN NORMAL LOAD CONDITION – 20 KW TOTAL LOAD CONNECTED – 40 KW

SST-3 - ISOLATE

TOTAL LOAD DISTRIBUTION FROM ALL TRANSFORMERS

TOTAL LOAD AT HV MOTORS – IN NORMAL CONDITION – 5470 KW TOTAL LOAD CONNECTED – 7755 KW

TOTAL LOAD AT LV MOTORS – IN NORMAL CONDITION – 909.8 KW TOTAL LOAD CONNECTED – 1329.6 KW

TOTAL LOAD – IN NORMAL CONDITION – 6399.8 KW TOTAL LOAD CONNECTED – 9124.6 KW

LOAD DURING NON-GENERATING HOURS – 205.5 KW

PPA – POWER PURCHASE AGREEMENT