Tender Document for Repowering Project of Ghorasal 3rd Unit - BPDB

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Emergency Oil Pump (DC)-1 no Pump Type -200/90 Capacity = 108 m 3 /Hr Head 22 m of water column Motor Power 13 KW Voltage 220 V RPM 1500 Current 67.6 Amps 2.6.6 Condensate water system 2.6.7 Deaerator: Condensate water from condenser hot well delivered through 3 vertical type condensate pumps( 2 running 1 standby) to De-aerator. Tenderer have to renovate all condensate pumps including its accessories and associated pipe lines for full operation. Description of Condensate Pump-3 nos(150%) Pump Type KCB-320x160 Capacity 320 m 3 /Hr Head 160 m of water column Rotational speed 1480 RPM Shaft power 174 KW Motor Power 250 KW, Power factor=0.85 Voltage 6.6 KV, 50 Hz, 3 Phase Current 275 Amps RPM 1500 Description of Drip Pump (Drain Pump for LP Condensate)-2 nos (200%) Pump Type Kc-80-155/3 Capacity 80 m 3 /Hr Head 155 m of water column Rotational speed 2950 RPM Motor Power 75 KW Voltage 230/400 (∆Y), 50 Hz Current 227/132 Amps RPM 2950 Description of Deaerator: Type DCP-1000-100 100 M 3 deaerator tank Deaeration of water 1000 t/hr Remove gases from feed water. Pressure of deaerator 7 ata 2.6.8 Heater (L.P, I.P, H.P) Turbine has 4 nos LP heater for heating condensate and 3 nos HP heater for heating feed water Re-Powering Ghorasal 210 MW 3 rd Unit (Vol-2A of 2) 16
No of heater Heating surface Steam flow Steam pres- Extraction no m 2 rate t/hr sure kg/cm 2 LPH-1 280 15 0.282 7 LPH-2 350 27 1.34 6 LPH-3 350 18 2.9 5 LPH-4 350 23 6.7 4 HPH-5 700 21 12.7 3 HPH-6 700 43 28.4 2 HPH-7 700 31 42.3 1 2.6.9 Steam Ejector Ejector is required for making vacuum inside condenser. There are 2 main ejectors for unit no 3, operated by steam which connected to common header steam line. Tenderer have to renovate steam ejector including its accessories and associated pipe lines for full operation. Description of Steam Ejectors Start up Ejector-1no Type 1-1100-1 Operating steam pressure 4.5 kg/cm 2 Steam temperature= 150 0 C Steam consumption 1.1 T/Hr Circulating Water Ejector-1 no Type 1-1100-1 Operating steam pressure 4.5 kg/cm 2 Steam temperature= 150 0 C Steam consumption 1.1 T/Hr Main Ejector-2 nos Type -3-700-1 Operating steam pressure 4.5 kg/cm 2 Steam temperature= 150 0 C Capacity of ejector air sucked is 70 Kg/Hr Steam consumption 700 Kg/Hr 2.6.10 Circulating Water Pumps(CWP) -5 nos There are 5 nos of CW Pump. Tenderer have to renovate or replace all required valves including its operating mechanism for full operation. Description of Condensate Pump-5 nos Motor Type AB-16/49-12 Power 1000 KW, Power factor=0.85 Voltage 6.6 KV, 50 Hz, 3 Phase Current 110 Amps RPM 500 Water for cooling oil in the oil bath of motor bearing F = 7 m 3 /Hr P = less than 3 Kg/ cm 2 T= 33 0 C Pump Type 96DB-4.5/23 TB3 Pump capacity 14130-16380 m 3 /Hr Re-Powering Ghorasal 210 MW 3 rd Unit (Vol-2A of 2) 17
Page 1 and 2: BANGLADESH POWER DEVELOPMENT BOARD
Page 3 and 4: Section 1 Description of the Projec
Page 5 and 6: Section 2 Scope of Work Re-Powering
Page 7 and 8: 2.7 Other Electrical System 2.8 Eme
Page 9 and 10: 2. Scope of Work 2.0 Scope of Work.
Page 11 and 12: s. Cooling and ventilating system.
Page 13 and 14: Evaporator and Super-heater of the
Page 15: There are 3 (Three) feed water pump
Page 19 and 20: Description of Sealing Oil Pump(AC)
Page 21 and 22: 0.4 kV bus, EDG will start and supp
Page 23 and 24: • Rated low voltage : 6.6 kV •
Page 25 and 26: l. One (1) lot 230 KV Control & Rel
Page 27 and 28: in his supply, and shall provide ne
Page 29 and 30: 2.30 Effluent Treatment Plant Efflu
Page 31 and 32: 3. Power Plant Arrangement 3.1 Gene
Page 33 and 34: 3.2 Guarantee The steam turbine gen
Page 35 and 36: shall be operated from central cont
Page 37 and 38: 3.3.6 Closed circuit cooling water
Page 39 and 40: The generators shall be connected t
Page 41 and 42: given of the outside of the enclosu
Page 43 and 44: 4.0 Gas Turbine and Ancillary Equip
Page 45 and 46: 4.3.2.1 Vibration Critical Speed Th
Page 47 and 48: 2. Compressor wash water quality To
Page 49 and 50: 4.3.2.9 Air Inlet System The air fi
Page 51 and 52: Section-5 Heat Recovery Steam Gener
Page 53 and 54: 5. Heat Recovery Steam Generator an
Page 55 and 56: 5.1.9 Steam Purging Following acid
Page 57 and 58: (2) Chemical Feed Pipe The chemical
Page 59 and 60: 5.2.4 Economiser The economiser sha
Page 61 and 62: An approval system of safety valve
Page 63 and 64: (e) All special supporting hangers,
Page 65 and 66: 5.2.10 Valves All valves shall be o
Page 67 and 68:
Sensors for temperature, pressure,
Page 69 and 70:
prevent sticking and leakage. Suita
Page 71 and 72:
6. Existing Steam Turbine And Ancil
Page 73 and 74:
Description of Shaft Turning Gear M
Page 75 and 76:
RPM 1000 Current 222 Amps Stand by
Page 77 and 78:
6.11 Valves 6.12 Generator There ar
Page 79 and 80:
Power 22 KW Voltage 230/400 V(∆Y)
Page 81 and 82:
RPM 1000 Current 53 A Description o
Page 83 and 84:
Section 7 Gas Turbine Generator and
Page 85 and 86:
7. Generator and Ancillary Equipmen
Page 87 and 88:
aced, blocked and supported against
Page 89 and 90:
discharge or suppress excitation fo
Page 91 and 92:
(4) Safety shutters actuated by ins
Page 93 and 94:
- Current transformer : Three (3),
Page 95 and 96:
- Circuit breaker : One (1) for eac
Page 97 and 98:
8. TRANSFORMERS 8.1 General 8.1.1 R
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a. 230 KV CIRCUIT - lightning impul
Page 101 and 102:
(3) Oil Preservation System: Oil im
Page 103 and 104:
The full insulation shall be applie
Page 105 and 106:
±8x1.25%. 8.4.2 Output Each auxili
Page 107 and 108:
9. 230 Kv Outdoor Switchgear, Equip
Page 109 and 110:
(3) Ratings a. Rated voltage : 245
Page 111 and 112:
fittings between each phase and con
Page 113 and 114:
sealed Electromagnetic type voltage
Page 115 and 116:
k. Each current transformer shall b
Page 117 and 118:
9.3.2 DESIGN CRITERIA The steel str
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e. Step-bolts : one (1) lot f. “R
Page 121 and 122:
Section 10 6.6 Kv Switchgear and Lo
Page 123 and 124:
10. 6.6 kV SWITCHGEAR AND LOW TENSI
Page 125 and 126:
Rated normal current Incoming and b
Page 127 and 128:
Section 11 Control and Protection R
Page 129 and 130:
11. Control and Protection Equipmen
Page 131 and 132:
- Automatic synchronising equipment
Page 133 and 134:
ee. AVR failure x ff. Emergency Tri
Page 135 and 136:
One (1) lot One (1) lot One (1) lot
Page 137 and 138:
(1) Pressure Measurement Pressure s
Page 139 and 140:
11.11 DELETED. range of 85 % to 115
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shall be followed in the design of
Page 143 and 144:
(namely that, of the approved DCS)
Page 145 and 146:
The following functions must be rea
Page 147 and 148:
11.11.7.5 Group Controls The auto-s
Page 149 and 150:
The HP and LP steam pressure contro
Page 151 and 152:
11.11.7.7 Operator Command and Supe
Page 153 and 154:
(a) Commonality of equipment, facil
Page 155 and 156:
Analog value storage of the Process
Page 157 and 158:
Standard weather stations with all
Page 159 and 160:
12. CABLING AND GROUNDING 12.1 Gene
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12.2.2. 6.6 kV XLPE POWER CABLES Th
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core type. The size of the conducto
Page 165 and 166:
Section 13 DC Power Supply System R
Page 167 and 168:
13.0 DC and UPS Systems The DC and
Page 169 and 170:
13.2 UPS Performance Static uninter
Page 171 and 172:
14. Lighting And Small Power Supply
Page 173 and 174:
c. The size shall be adequate to li
Page 175 and 176:
The wall switches shall be of the e
Page 177 and 178:
15. FUEL GAS HANDLING FACILITIES 15
Page 179 and 180:
Section 16 Fire Detection & Protect
Page 181 and 182:
16. Fire Detection & Protection Fac
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mm diameter. The underground pipewo
Page 185 and 186:
17. Communication Facilities 17.1 G
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h. Operator intrusion into an estab
Page 189 and 190:
Ammeter for measuring the emitter c
Page 191 and 192:
• video matrix switcher and contr
Page 193 and 194:
18. Maintenance Facilities 18.1 Ove
Page 195 and 196:
18.1.3 TYPE OF CRANE 18.1.4 RATING
Page 197 and 198:
anchors and other electrical equipm
Page 199 and 200:
18.1.10 SITE TESTS (1) Control and
Page 201 and 202:
Section 19 Tests and Inspections Re
Page 203 and 204:
19. Tests and Inspections 19.1 GENE
Page 205 and 206:
19.2.4 GENERATOR 19.2.5 EXCITER All
Page 207 and 208:
"Voltage transformers” - General
Page 209 and 210:
(3) Reliability Test Period a. The
Page 211 and 212:
(4) Performance and Acceptance Test
Page 213 and 214:
Insulation resistance test using 50
Page 215 and 216:
ound copies of all site test sheet
Page 217 and 218:
Section 20 Civil Works Re-Powering
Page 219 and 220:
20.6.11 Transportation 20.6.12 Curi
Page 221 and 222:
20.1.3 SITE INVESTIGATION The Contr
Page 223 and 224:
20.3 EARTHWORKS 20.3.1 GENERAL The
Page 225 and 226:
until the work has been inspected a
Page 227 and 228:
the piles. Due consideration shall
Page 229 and 230:
casing in concrete or such other me
Page 231 and 232:
a+b+e or a+b+c+f or a+b+d+f 20.4.4
Page 233 and 234:
approved standard. When required by
Page 235 and 236:
20.6.11 TRANSPORTATION 20.6.12 CURI
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In a flight of stairs Rise 3 mm In
Page 239 and 240:
20.7.1.2 Aggregate Sub-base Materia
Page 241 and 242:
warping or cracking. When placing t
Page 243 and 244:
(14) days. Ponding of the surface o
Page 245 and 246:
Man-holes, inspection chambers and
Page 247 and 248:
Colour of paint shall be as directe
Page 249 and 250:
This pump shall be operated in conj
Page 251 and 252:
20.11 Ducts The concrete ducts to i
Page 253 and 254:
Section 21 Building Works Re-Poweri
Page 255 and 256:
21. Building Works 21.1 General The
Page 257 and 258:
adopted standards or codes shall be
Page 259 and 260:
Outside temperature : 36 0 C Inside
Page 261 and 262:
(6) Welding Procedure (7) Paint Det
Page 263 and 264:
chips, gravel or crushed stone, or
Page 265 and 266:
pallets, and other hidden timber sh
Page 267 and 268:
21.5.9 Floor Laying (1) PVC Floorin
Page 269 and 270:
protection of the tiling from all d
Page 271 and 272:
Section 22 Spare Parts Re-Powering
Page 273 and 274:
22. Spare Parts 22.1 Spares & consu
Page 275 and 276:
BACKGROUND INFORMATION: Bangladesh
Page 277 and 278:
- Overhauling of all electrical mot
Page 279 and 280:
GENERAL CONDITIONS OF LTSA CONTRACT
Page 281 and 282:
8. LIMITATION OF LIABILITY 8.1 The
Page 283 and 284:
- Failing to pay the LTSA provider
Page 285 and 286:
the Head of the power plant. 16. CO
Page 287 and 288:
Section 23 Appendices Re-Powering G
Page 289 and 290:
Annexure -1 ANALYSIS OF NATURAL GAS
Page 291 and 292:
Indicative Single Line Diagram of E
Page 293 and 294:
Re-Powering Ghorasal 210 MW 3 rd Un
Page 295 and 296:
Page 297 and 298:
Page 299 and 300:
Standards for Industrial Effluent o
Page 301 and 302:
Page 303 and 304:
Page 305:
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Tender Document for Repowering Project of Ghorasal 3rd Unit - BPDB

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