“শেখ হাসিনার উদ্যাগ, ঘদর ঘদর সিদ্যযৎ” ASHUGANJ POWER STATION COMPANY LTD. TENDER DOCUMENT FOR CONSTRUCTION OF ASHUGANJ 100 MW HFO POWER PLANT PROJECT. VOLUME 2 OF 2 (PART A) TECHNICAL REQUIREMENTS Tender Reference No. APSCL/100MWHFO/PD/IFT/2017/01 23 NOVEMBER-2017 Volume – 2 of 2 (Part A) Technical Requirements Section 1 - Description of the Project ................................................................................ 2 Section 2 - Scope of Work. ............................................................................................... 7 Section 3 - Power Plant Arrangement .............................................................................. 25 Section 4 - Generator and Ancillary Equipment ................................................................. 46 Section 5 - Transformers ................................................................................................ 56 Section 6 - 230 kV outdoor Switchgear Equipment and underground cable ......................... 66 Section 7 - Low Voltage Switchgear ................................................................................ 82 Section 8 - Control and Protection ................................................................................... 87 Section 9 - Cabling and Grounding .................................................................................. 99 Section 10 - DC Power Supply System ..............................................................................106 Section 11 - Lighting and Small Power Supply System .......................................................111 Section 12 - Fuel Handling Facilities .................................................................................117 Section 13 - Fire Protection Facilities ................................................................................126 Section 14 - Communication Facilities ..............................................................................131 Section 15 - Maintenance Facilities ..................................................................................138 Section 16 - Tests and Inspections ..................................................................................146 Section 17 - Civil Works ..................................................................................................163 Section 18 - Building Works ............................................................................................201 Section 19 - Spare Parts .................................................................................................223 Section 20 - Appendixes [Data/ drawings] ........................................................................227 Volume 2 of 2 (Part-A) 1 Section 1 Description of the Project 2 Volume 2 of 2 (Part-A) Ashuganj 100 MW HFO Power Plant Project. TECHNICAL REQUIREMENTS DESCRIPTION OF THE PROJECT: A Power Station with HFO based Engine Generator Sets of 100 (10%) MW total net capacity at site conditions (350C, 1.013 bar, 98% R.H.) is intended to be set up by Ashuganj Power Station Company Ltd. at Ashuganj, Brahmanbaria district 90 Km east from Dhaka, the capital of Bangladesh. The proposed Plant consisting of identical units having each capacity not less than 14 (Fourteen) MW will be installed in the space, as shown at the site layout. The Project will be implemented on turnkey basis with APSCL own fund. The Power Station will be connected with APSCL 230 kV Bus of 230 kV Grid Sub-Station through power Plant's own switchyard to be built and other electrical equipment to be provided within this contract. Fault Levels of existing Ashuganj Grid Sub-station’s 230 kV Bus bar are 50 kA. Climatic Conditions: Sub-Tropical Monsoon 0 0 [To be considered in Temperature : 5 C to 45 C Plant design] Relative Humidity : 36% to 100% Annual Rainfall : 120 cm to 345 cm Wind Velocity : 204 km/hr Seismic Horizontal Ground Acceleration : 0.28g The project may be classified into the following broad areas. Details are however given later in the scope of work. 1. Land Survey, preparation of drawing, land development, landscaping of the proposed site. 2. The supply and construction of the Power plant equipment. 3. Equipping of 230 KV material/equipment at the HV switchyard of the power plant and 230 KV Ashuganj Grid Sub-station. 4. Supply and Construction of all civil works including control room, office building, warehouse, workshop, internal roads, boundary, temporary jetty, fuel unloading jetty, river bank protection, watch tower, plant main entrance gate with security post etc. 5. Supply and construction of entire Fuel system for the plant, fire protection system, water treatment plant, HFO treatment house etc. Volume 2 of 2 (Part-A) 3 Section 2 Scope of Work 4 Volume 2 of 2 (Part-A) 2.0 Scope of Work. ................................................................................................... 7 2.0. POWER GENERATION .......................................................................................... 7 2.0.1 GENERATING SETS ....................................................................................... 7 2.0.1.1 ENGINE ....................................................................................................... 7 2.0.1.2 GENERATOR ................................................................................................. 7 2.0.1.3 BASE FRAME INCLUDING .............................................................................. 7 2.0.1.4 ELASTIC MOUNTING ..................................................................................... 7 2.0.1.5 COUPLING ................................................................................................... 7 2.0.1.6 CONNECTIONS ............................................................................................. 7 2.0.1.7 Flexible connections between engine and external piping ................................. 7 2.0.1.8 PLATFORMS ................................................................................................. 8 2.0.2 MECHANICAL AUXILIARY SYSTEMS ................................................................ 8 2.0.2.1 AUXILIARY MODULES ................................................................................... 8 2.0.2.2 FUEL SYSTEM ............................................................................................... 9 2.0.2.2.1 LIGHT FUEL OIL SYSTEM including following list, but not limited to: ............................. 9 2.0.2.2.2 HEAVY FUEL OIL SYSTEM including following list, but not limited to: ............................ 9 2.0.2.3 LUBRICATING OIL SYSTEM including following list, but not limited to: ............ 10 2.0.2.4 COMPRESSED AIR SYSTEM including following list, but not limited to: ............. 11 2.0.2.5 COOLING SYSTEM following list, but not limited to: ....................................... 11 2.0.2.6 CHARGE AIR SYSTEM including following list, but not limited to: ..................... 11 2.0.2.7 EXHAUST SYSTEM (with stack height not less than 55m) including following list, but not limited to: ....................................................................................... 11 2.0.2.8 STATION SUPPORT SYSTEM ........................................................................ 11 2.0.2.8.1 OILY WATER SYSTEM including following list, but not limited to: ................................ 11 2.0.2.8.2 WATER TREATMENT SYSTEM including following list, but not limited to: ................... 12 2.0.2.8.3 FIRE FIGHTING SYSTEM associated with the Engine and other systems ...................... 12 2.0.2.9 HEAT RECOVERY SYSTEM ........................................................................... 13 2.0.2.9.1 STEAM GENERATION SYSTEM ....................................................................................... 13 2.0.2.10 AUTOMATION SYSTEM based on complete DCS system of the plant, including following list, but not limited to: ................................................................... 14 2.0.2.11 Other miscellaneous System/equipment/materials for mechanical auxiliary system ................................................................................................................. 15 2.1 Emergency Diesel Generating Set ................................................................. 15 2.2 230 KV Switchgear, Equipment and Transformers .......................................... 15 2.2.1. 230 KV Switchgear Equipment: .................................................................... 15 2.2.2. Step-Up Transformers and Associated Equipment: ......................................... 16 2.3 Station Auxiliary Transformers and Associated Equipment .............................. 17 2.4 Control and Protection System ..................................................................... 18 2.5 Other Mechanical System ............................................................................ 18 Volume 2 of 2 (Part-A) 5 2.6 Other Electrical System................................................................................ 19 2.7 Maintenance Facilities .................................................................................. 19 2.8 Fire Fighting Facilities .................................................................................. 19 2.9 Building and Civil Works .............................................................................. 20 2.10 Training ..................................................................................................... 20 2.11 Submission of Engineering Data ..................................................................