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Diesel Generator Proposal

Power Plant Proposal

Home > Equipments > HFO Diesel generator & Marine HFO Engine > 10x5.5MW MAN 12V32/40 HFO diesel plant proposal


 
Quotation of 2Γ—5.5MW HFO Diesel Generator sets
 
1.       Name of the HFO diesel generator sets: CHF5500/11000
2.       Main specification: 5500KW, 750r/min, 11KV, 50Hz
3.       Scope of supply: Every set of hfo diesel generator including: engine, generator, coupling joint, common base, special tools, spare parts with the gensets, and documents with the gensets.
4.       Quotation:
Name
Quantity
Unit Price in USD
Total
(1)  Engine  12V32/40
10
2197014.925
21970149.25
(2) Generator: TFW5500-8/2150
10
240298.5075
2402985.075
(3) Common base
10
68656.71642
686567.1642
(4) coupling joint and supporting
10
48059.70149
480597.0149
(5) Mechnical/Electric auxiliaries for 10 units of Genset
10
760029.8507
7600298.507
(6) Inland Shipment in China
10
51492.53731
514925.3731
total
33655522.39
The quotation is based on FOB China port.
5.          Delivery: Six-Eight months for lead delivery after advance payment, then 3 units every month.
6.      Payment: 30% by T/T paid within 10 days, after contracts, and balance by T/T 10 days before delivery or L/C, which should be as irrevocable, transferrable, acceptable, issued within 20 days after contract.
7.           Validity: up to Jan. 20th, 2010

 

Yang chunlin

Sinoway Trading & Engineering Co. Ltd.

China National Electric Wire & Cable Imp./Exp. Corp.
CMEC/Sinomach Group
Email:ycl1227@163.com
Tel: 0086 10 85805516
Fax: 0086 10-84568952
Mobile: 0086 13801218512
D-803, Shengshijiayuan, Road 98, Jianguo,  Beijing 100022, China
 
 

Annex:

Specification of DG set

Type                                                       CHF5500/11000
Rated power                                           5500 kW
Rated voltage                                         11kV
Rated current                                          361 A
Number of pole pairs                               4
Power factor                                           0.8 (lagging)
Rated frequency                              50 Hz
Rated speed                                           750 r/min
Phase                                                     3 phase
Excitation                                               brushless excitation
Dry Weight                                              101 ton
β€»External dimension (LΓ—WΓ—H)                    11,045 x 3,365 x 4,850 mm
β€?The dimensions and weight may vary depending on the generator make and type.

Main data of diesel engine

12V32/40 engine is a four stroke, single action, direct injection, gas turbocharging, intercooler medium speed high power diesel engine.
Type
12V32/40
Model
4 stroke, V-type, direct injection, gas turbocharging, air intercooled
 
N0. of cylinders   
12
Rotating direction
clockwise (view from PTO)
Cylinder bore     
 
320 mm
Stroke 
400 mm
Swept volume    
 
32.17 dm3
Compression ratio    
14.5/1
Type of combustion chamber
 
direct injection
 
 
Injection method
mechanical drive, single body injection pump
Starting method
compressed air starting
Max. continuous rating (MCR)
5500kW
Overload power (1h out of 12 h)
6050kW
Rated speed
750 r/min
Mean effective pressure     
2.49MPa
Max. explosion pressure     
19.0Β±0.29MPa
Min. stable speed    
250 r/min
Firing speed      
80 r/min
Exhaust temp. at cyl. outlet
510Β±50β„?(difference between any two cylinders β‰?0β„?
Fuel oil consumption     
185+5�nbsp; g/kw.h (Lev= 42700kj/kg�/DIV>
Lube oil consumption          
β‰?.0 g/kw.h
External dimension           
6,915 x 3,140 x 4,100 mm(LΓ—WΓ—HοΌ?/DIV>
Weight (dry)
64 ton

Main data of generator

Type                                                       TFW5500-8/2150
Rated power                                           5500kW
Rated voltage                                         11kV
Rated speed                                        750 r/min
Rated frequency                                     50Hz
Power factor                                           0.8 (lagging)
Efficiency                                               96%
Insulation                                                Class F
Protection                                              IP23
Cooling method                                      Air cooling
Excitation                                               Brushless excitation
Lubricating method                                  Complex lubricating
Bearing lube oil                                       N46 (GB443-89)
Weight                                                    32  T

Performance of DG set

Steady state voltage deviation                               Β±2.5%
Transient voltage regulation                                   within +20%ο½?-15%
Voltage recovery time                                            β‰?.5 second
Voltage fluctuation                                                β‰?%
No-load voltage setting range                                95% --105% rated voltage
The distortion rate of sinusoidal waveform
of line voltage at no-load rated voltage.                 β‰?%
Steady state frequency deviation                           5%
Transient frequency deviation                                 Β±10%
Frequency recovery time                                        7 second
Frequency fluctuation                                            β‰?%
 
 
 
 
 
TECHNICAL SPECIFICATION
 
 
Power  Generation  Project
 
 
 
 
 
 
 
 
 
Project name:           Project
Date:  Nov, 2009
Product type :  Stationary power plant
Engine configuration:  10xUS 12V32/40
 SHANXI DIESEL HEAVY INDUSTRY Co., Ltd.
China National Electric Wire & Cable Imp./Exp. Corp.
This information is confidential and proprietary to US. No distribution or duplication in any of
    from any material contained herein is permitted without the prior approval of US

Contents


β…?/A> General

The proposed stationary 10 x 5.5MW diesel power generating plant is for base load application and intended for electricity production operation in parallel with public supply system.
The diesel engine is connected with the generator via flexible coupling. The fuel for DG sets can be either diesel oil or heavy fuel oil.
The mechanical auxiliary equipment of the DG will be grouped into functional modules to facilitate installation and operation.
Single bus design is used for its electrical design i.e. the power generated from 10 DG sets will be output to the bus. Power supply for the equipment in power plant itself will be taken from the bus through 11kV/0.4kV transformer. No additional standby generating sets are needed.

Main data of the power plant

The power plant mainly consists of 10 sets CHF5000/11000 diesel generating sets manufactured by our MAN Licensed producer.
Rated power of each DG set under rated speed and ambient conditions:
- Electrical power (50/ 60Hz)                        5500kW
- Apparent power                                              6875kVA
-Power factor                            0.8
The DG set can output power efficiently under the following ambient conditions:
- Ambient temperature                                  5ο½?5β„?/DIV>
- Elevation                                                  β‰?000M
- Relative humidity                                        οΌ?5%
- Water temperature at air cooler inlet        45β„?/DIV>
The DG sets can output rated power continuously and are capable of temporary 110% overload for 1 hour in every 12 operating hours under the following conditions:
Ambient temperature                                           25β„?/DIV>
Atmospheric pressure                                          100kPa
Cooling water temp. at air cooler inlet                  25β„?/DIV>

Derating of DG output

The output and fuel oil consumption rate are to be corrected according to relevant technical documents of the diesel engine manufacturer when the service condition on site does not conform to the standard conditions specified in ISO3046-1995.
 
 
 

Water requirement

HT water and injector cooling water
Normal condition
Clear
PH
6.8--8
Total hardness (CaCO3 in ppm)
mg/l
max
100
Chlorinity
mg/kg
max
60
Total salinity
mg/kg
max
250
Density of acid ion ( SO2-4)
mg/kg
max
60
Fe
mg/kg
max
0.3
Silicon dioxide
mg/kg
max
50
Residue on evaporation
mg/kg
max
400
 
 
 
 
 
 
 
 

Quality of Light Fuel Oil (LFO)

Viscosity, min.
cSt at 40β„?/DIV>
2.8
Viscosity, max.
cSt at 40β„?/DIV>
14.0
Density, max. (at 15 Β°C)
g/ml
0.92
Conradson carbon res. max.
% mass
3.0
Sulphur, max.
% mass
2
Vanadium, max.
ppm
100
Sodium, max.
 
0
Ash, max.                                  
% mass
0.05
Water, max.                                  
% Vol
0.30
Water before engine, max.
% Vol
0.2
Flash point, closed Pensky-Martens, min.
β„?/DIV>
60
Pour point, upper max.
β„?/DIV>
6
Aluminium + silicon, max. 
mg/kg
25
Total sediment potential, max.
% mass
0.1
 
 
 
 
 
 

Quality of Heavy Fuel Oil (HFO)

 
 
 
 
 
Fuel oil specification
CIMAV 2003
A30
B30
D80
E/F180
G/H/380
H/k700
BS MA-100
 
M4
M5
M7
8/9
M9/-
ISO F-RM
A30
B30
E/F180
E/F180
G/H/K380
H/K700
Fuel-system related characterstic values
Viscosity(at 50β„?
mm2/s(cSt)
max.
40
40
80
180
380
700
Viscosity(at 100β„?
 
max.
10
10
15
25
35
55
Density(at 15β„?
g/ml
max.
0.975
0.981
0.985
0.991/1.010
Flash point
β„?/DIV>
min.
60
Pour point(summer)
max.
6
24
30
Pour point(winter)
max.
0
24
30
Engine-related characteristic values
Carbon residues(Conradon)
% wt.
max.
10
10/14
14
15/20
18/22
22
Sulphur
3.5
3.5
4
5
Ash
0.10
0.15
0.20
Vanadium
mg/kg
150
150/300
350
200/500
300/600
600
Water
% vol.
0.5
 
0.8
1
Sediment(potential)
% wt.
0.1
Supplementary characteristic values
Aluminium and silicon
mg/kg
max.
 
 
 
 
 
 
Asphalts
% wt.
 
 
 
 
 
 
Sodium
mg/kg
 
 
 
 
 
 
Cetance number of low-viscosity constituent minimum 35
Fuel free of admixtures not based on mineral oil, such as coal oils or vegetable oils; free of tar oil and lubricating oil(used oil)

Lube oil characteristics

Lube oil for engine lubrication and rockerarm lubrication:
Viscosity: SAE40
Total base number (TBN): οΌ?0
Please consult recommended lube oil specifications of the engine manufacturer for specific lube oil to be used.
Lube oil for governor and turbocharger:
HU45(GB2537-81)

Codes and standards

The plant will be designed and manufactured according the following codes and standards.
Mechanical system: Relevant ISO and GB standards
Electrical system: IEC standards.

β…?/B>.  General layout

This10 x 5.5 MW diesel power generating plant will occupy an area dividing into four sections i.e. main DG building, cooling water station, tank area and heavy fuel treatment station.

Main DG building

The main DG building consists of three rooms i.e. switching room, DG room and auxiliary room.

DG room

The elevation of the DG room is approx. 16m equipped with a 7 ton bridge crane for maintenance and lifting of components. 6 DG sets are laid out in parallel transversally.

Auxiliary room

The auxiliary room is on the engine side of the DG room . Auxiliary equipment such as oil pumps, water pumps, heat exchangers, air compressors, air bottles and some pipes will be installed in the room and the air intake and gas exhaust pipes as well as HT water expansion tank will be installed at the top of the room.

Switching room

Switching room is located at the generator side of the DG room. There are specific rooms for high voltage, central control, switching gear and transformer.

Cooling water station

A fresh water pond will be build in the Plant. Low temperature water circulating pump, central plate heat exchanger and LT water circulating pump. Plant water treatment facilities are located in the water treatment room. There is a water pump room for distinguish pump and pumps for daily life and production.

Tank area

Fuel oil storage tanks in the tank area will be built together comprising two or three 1,000m3 fuel oil storage tanks and eight 40m3 light diesel oil service tank. The capacity of the fuel oil tanks can enable the operating of 8 DG sets for15 days.
Position for slag oil is reserved in the tank area. Transfer pumps for light diesel oil and heavy fuel oil will be installed inside the tank area.

Heavy fuel oil treatment station

Heavy fuel oil separating unit is located in the station. The unit consists of 1centrifugal separators and feed pump, strainer and heater. Its function is to separate water content and particles in the heavy fuel oil which are hazardous to engine.
 
 

β…?/B>. Diesel generating set

CHF5000/11000 DG set consists of one set of US 12V32/40 diesel engine as prime mover, one generator, excitation system and AVR, control and monitoring system, protection system and various auxiliary equipment. The diesel engine and the generator will be installed on the common base and connected through flexible coupling. The DG set features reliable running, prolonged TBO and easy maintenance.
 

Specification of DG set

Type                                                      CHF5500/11000
Rated power                                                 5500 kW
Rated voltage                                         11kV
Rated current                                         361 A
Number of pole pairs                             4
Power factor                                                 0.8 (lagging)
Rated frequency                                   50 Hz
Rated speed                                                 750 r/min
Phase                                                    3 phase
Excitation                                               brushless excitation
Dry Weight                                             101 ton
β€»External dimension(LΓ—WΓ—H)                11,045 x 3,365 x 4,850 mm
β€?The dimensions and weight may vary depending on the generator make and type.

Main data of diesel engine

12V32/40 engine is a four stroke, single action, direct injection, gas turbocharging, intercooler medium speed high power diesel engine.
Type
12V32/40
Model
4 stroke, V-type, direct injection, gas turbocharging, air intercooled
 
N0. of cylinders    
12
Rotating direction
clockwise (view from PTO)
Cylinder bore      
 
320 mm
Stroke   
400 mm
Swept volume      
 
32.17 dm3
Compression ratio      
14.5/1
Type of combustion chamber
direct injection
Injection method
mechanical drive, single body injection pump
Starting method
compressed air starting
Max. continuous rating (MCR)
5500kW
Overload power (1h out of 12 h)
6050kW
Rated speed
750 r/min
Mean effective pressure   
2.49MPa
Max. explosion pressure   
19.0Β±0.29MPa
Min. stable speed      
250 r/min
Firing speed
80 r/min
Exhaust temp. at cyl. outlet
510Β±50β„?(difference between any two cylinders β‰?0β„?
Fuel oil consumption  
185+5οΌ? g/kw.h (Lev= 42700kj/kgοΌ?/DIV>
Lube oil consumption        
β‰?.0 g/kw.h
External dimension           
6,915 x 3,140 x 4,100 mm(LΓ—WΓ—HοΌ?/DIV>
Weight (dry) 
64 ton

Main data of generator

Type                                                      TFW5500-8/2150
Rated power                                                 5500kW
Rated voltage                                         11kV
Rated speed                                              750 r/min
Rated frequency                                  50Hz
Power factor                                                 0.8 (lagging)
Efficiency                                               96%
Insulation                                              Class F
Protection                                             IP23
Cooling method                                     Air cooling
Excitation                                               Brushless excitation
Lubricating method                                Complex lubricating
Bearing lube oil                                      N46 (GB443-89)
Weight                                                   32  T

Performance of DG set

Steady state voltage deviation                              Β±2.5%
Transient voltage regulation                                 within +20%ο½?-15%
Voltage recovery time                                                 β‰?.5 second
Voltage fluctuation                                               β‰?%
No-load voltage setting range                              95% --105% rated voltage
The distortion rate of sinusoidal waveform
of line voltage at no-load rated voltage.               β‰?%
Steady state frequency deviation                         5%
Transient frequency deviation                             Β±10%
Frequency recovery time                                     7 second
Frequency fluctuation                                                 β‰?%
 
 

β…?/B>  Mechanical auxiliary system

The proper function of the DG-set is dependent on the mechanical auxiliary systems. The proposed systems have been optimized for the this particular plant. The function of the systems are to provide the engine with fuel, lubricating oil, starting air, cooling water and charge air at required quantity and quality as well as to dispose of exhaust gases in a proper manner.

Fuel oil system

The main function of the fuel oil system is to supply the Diesel engine with fuel oil of the necessary amount, pressure, temperature, viscosity and quality during all loads and environmental conditions.. The power plant is using Heavy Fuel Oil as the main fuel.
 
 
 
 
 
 
 
 
 
 

1. Fuel oil storage system

Diesel oil transfer pumps are to be equipped to facilitate unloading of fuel oils. The diesel oil transfer pump is for delivering diesel oil to the diesel oil daily tank for starting ,running and stop operations of the DG sets.
Main facilities in the fuel oil storage system are
Strainer                                    8 sets                  
LFO transfer pump               4 sets                  
LFO delivery pump                  2 sets                  
LFO daily tank                       8 set                   
LFO storage tank                     2 sets                  
Light fuel oil daily tanks are all equipped with level indicator and level switches for alarm and control.

2.  FO feeding unit                                             5  sets

The function of the feeding pump unit is to pump fuel oil from the storage tank to the day tank. It provides the engine with filtered fuel of correct quantity and pres­sure. It consists of feeding pump, fine filter, flow meter, booster pump, and control system. Its function is to supply fuel oil to diesel engine at an appropriate viscosity, pressure, flow and cleanness. Transfer pumps and other components are built on a steel frame, which forms one compact unit. Every two DG sets share one unit
Main facilities are as follows:
Electric feeding pump                                       2 sets                  
Electric booster pump                                       2 sets                  
Duplex strainer                                          2 sets                  
Duplex fine filter                                        1 set                   
Pressure drop indication and alarm            1 set                   
Control panel                                                1 set                   
Connecting pipe, valve, flanges                    1 set
Steel base frame                                        1 set                   

3.  Heavy fuel oil separating unit                                 10 sets

The unit consists of 2 centrifugal separators and feed pump, strainer and heater. Its function is to separate water content and particles in the heavy fuel oil which are hazardous to engine.
Its working procedure is as follows:
First heat up the HFO coming from HFO storage tank to a temperature suitable for separation.
Then separate the HFO according to its nature through appropriate gravity disk.
HFO after the treatment will be delivered to HFO daily tank. The slag and contaminated water will be drained to slag collector. Switch on the slag oil pump to drain it to slag oil tank when the slag in the collector accumulates to certain amount.

4.  HFO feeding unit

It consists of feeding pump, fine filter, flow meter, blending device, booster pump, heater and viscosity-temperature control system. Its function is to supply fuel oil to diesel engine at an appropriate viscosity, pressure, flow and cleanness and realize the switch over between diesel oil and HFO. Every two DG sets share one unit.
Its working procedure is as follows:
Measure the temperature and viscosity of the HFO coming from HFO daily tank through thermal transmitter and viscometer. Heat up the HFO automatically to the set temperature, at which the viscosity of HFO can ensure the normal operation of the diesel engine. Finally feed the HFO after fine filtration to DG sets though the booster pump.
Main facilities are as follows:
Electric feeding pump                                  2 sets                  
Electric booster pump                                  2 sets                  
Degas blending tank                                 1 set
Duplex strainer                                         2 sets                  
Fuel oil heater                                           1 set
Temperature-viscosity control device          1 set
Duplex fine filter                                              1 set                   
Pressure drop indication and alarm              1 set                   
Control panel                                               1 set                   
Connecting pipe, valve, flanges                   1 set
Steel base frame                                          1 set                   

 Lube oil system

DG lubricating system consists of diesel engine lubricating system and generator lubricating system. The diesel engine lubricating system includes main lube oil circuit, rockerarm lubricating circuit and turbocharger self lubricating system.
 

1.  Main lube oil circuit of diesel engine                     1 set/DG set

The main lube oil system of the diesel engine is to supply lube oil for moving parts of the engine. Main lube oil pump delivers lube oil from lube oil tank to engine inlet through lube oil fine filter. Lube oil cooler and three-way thermostatic valve ensure the temperature of the lube oil at engine inlet.
Main facilities are as listed below:
Electric lube oil delivery pump            2 sets                  
Lube oil cooler                                    1 set                   
Lube oil fine filter                                       1 set            
Thermostatic valve                              1 set                   
Control panel                                         1 set                   
Connecting pipes, valves, flanges      1 set
Steel base frame                                 1 set

2.  Lube oil separating unit                                          5  sets

The function of lube oil separating unit is to separate the water content and particles in the main lubricating system at fixed intervals. Two DG sets share one unit. Lube oil of two DG sets can be separated during operation of DG sets.
Each lube oil separating unit consists of the following facilities:
Lube oil separator                                  2 sets                  
Filter                                                      2 sets
Heater                                                 2 sets                  
Slag oil tank                                        1 set                   
Control panel                                         1 set                   
Connecting pipe, valve, flange            1 set
Steel base frame                                 1 set

3.  Lube oil storage system                                          1 set/Plant

For storage, compensation and refill of lube oil for the Plant.
Lube oil storage tank                         1 set                   
Lube oil delivery pump                           1 set                   
Engine circulating lube oil tank            1 set                   
Waste oil tank                                        1 set                   

4.  Emergency lube oil system

For supplying necessary lube oil for stop of engine when accidents such as loss of power, faulty lube oil pump etc.
Main facilities:
Gravity oil tank                               10 sets                
Automatic oil feeding device          10 sets

Cooling water system                                        

Engine cooling water system comprises three portions i.e. high temperature water circuit, low temperature water circuit and injector cooling circuit. LT water is cooled by cooling tower. HT water and injector cooling water are cooled by LT water through heat exchangers.

1.  LT water circulating system                         1 set/Plant

LT water circulating system consists of pump station and cooling tower. Its function is to cool air cooler, lube oil cooler, HT water cooler and injector cooler.
Main facilities are as follows:
LT circulating pump                           10  sets                    
Cooling tower                            10  sets

2.  HT water system                                                1 set/DG

HT water system is to cool cylinder liners, cylinder heads and turbocharger consisting of cooling unit and expansion tank.
Main facilities included in the cooling unit are:
HT water pump                                 2 sets                  
HT water cooler                                  1 set                   
Thermostatic valve                              1 set                   
Control panel                                         1 set                   
Connecting pipe, valve, flange            1 set
Steel base frame                                 1 set

3.  Injector cooling water system                                 1 set/DG

Main facilities are:
Injector cooling water pump                   2 set                   
Injector cooler                                        1 set                   
Thermostatic valve                              1 set                   
Cooling water tank                                 1 set                   
Control panel                                         1 set                   
Connecting pipe, valve, flange            1 set
Steel base frame                                 1 set

Compressed air system                                     1 set/Plant

The compressed air system is to supply compressed air for engine starting. Air cooled air compressor produces compressed air and the air will be stored in the starting air bottle and low pressure control air bottle. The capacity of the starting air bottle shall enable 12 times starting of the 2 DG sets.
Main facilities included are:
Air compressing unit                    2 set             automatic start/stop
Starting air bottle                          4 sets           
Control air bottle                          4 set            
Relief valve                                  4 set            
Control air treatment device            4 set
Local air control panel                     1 sets

Air intake/Gas exhaust system                                1 set/DG

Air intake/gas exhaust system consists of air filter, air intake pipe, turbocharger, air cooler, air manifold, exhaust gas manifold, gas boiler and silencer.
The air outside the building enters into the turbocharger through air duct after filtration of the air filter. The high temperature air after supercharging is cooled by the air cooler and enters into cylinders for combustion through air pipes. The high temperature gas with high pressure after combustion enters into turbocharger through exhaust gas pipes and pushes the turbocharger to rotate and in the meantime drives air compressor for supercharging. The exhaust gas is divided into two routes, one is emitted into open air through silencer, the other goes to the gas boiler to produce steam. The flow of exhaust gas in each route can be regulated through valve.
Exhaust silencer                                  1 set                   
Air filter                                                  1sets                   
Exhaust pipe expansion joint                    1sets                   
Exhaust manifold expansion joint              1 sets                  
Air intake pipe expansion joint               1sets                   

β…?/B>.  Electrical control system

The outgoing of 2 DG sets connected to the 11KV bus, which is single bus. The frequency of the local power grid is50/ 60Hz. The short circuit current of single DG set is 2.69kA. The max short circuit current of 11kV bus is 16.4kA. The 11kV circuit-breaker is indoor vacuum circuit-breaker, whose rated current is 20kA. The 11kV switchgear is indoor fixed switch cubicle.
The factory power is taken from 11kV bus via factory transformer to lower the voltage down to 0.4KV and connected to switchgear which supplies power to auxiliaries control system and for workshop lighting , ventilation, security and common equipment.
The 2 DG sets have an integrated control system, which performs the control, protection, monitoring functions of the DG sets.
 

Electrical equipment

No.
Designation
Quantity
1
Local control panel
10
2
Generator control cubicle
10
3
PT cubicle
10
4
CT cubicle
10
5
Generator outgoing switch cubicle
10
6
Neutral earthing cubicle
10
7
Generator protection cubicle
10
8
DC24V panel
2
9
DC110V panel
2
10
Common pump control panel
1
12
0.4KV control cubicle
1
13
0.4KV switch cubicle
1
14
Factory power control cubicles
1
15
0.4KV compensation panel
1
16
Transformer 11KV/0.4KV 1250KVA
1
17
0.4KV outgoing cubicles
1
18
Transformer incoming switchgear cubicle
1
19
Busbar PT cubicle
1
20
11KV outgoing cubicle
1

Primary cabling

The primary cabling of the Plant is 11KV single bus. The output of 2 DG sets are all connected to 11KV bus. The final outgoing circuit and outgoing way shall be decided after confirmation with the customer. In this proposal the power output circuit is designed as two circuits output and the outgoing way as geosyncline cables.
In the 11kV bus of primary cabling diagram, the factory power supply is taken from the 11kV bus via 11kV/0.4kV factory transformer. The 11KV electrical cubicles for primary cabling are XN2 fixed switch cubicle. The main equipment includes generator output cubicles, PT cubicles, neutral earthing cubicles, CT cubicles, outgoing switch cubicle and factory power transformer switch cubicle.
1Generator output cubicles
Automatic and manual breaker close and trip switch
Differential protection current signal
Generator neutral earthing fault protection
Circuit-breaker and motor heater interlock with fan motor.
Stop the generator heater when close the generator outgoing circuit-breaker and start the generator ventilation motor simultaneously. Stop the motor when the circuit-breaker trip.
Enable the manual and electrical operation of close and trip.
2Neutral earthing cubicles
Supply the differential protection circuit current signal
Supply voltage signal for exciting automatic regulator
Supply current signal for zero sequence protection circuit
3.  PT cubicle
Supply voltage signal for active power, reactive power, three-phase current, power factor and frequency measure.
Supply generator protection voltage signal
4.  CT cubicle
Supply current signal for excition regulation and active and reactive power meter
Supply generator protection voltage signal
5.  Outgoing cubicle
Supply outgoing circuit for power users.
6.  Factory transformer switch cubicle
Supply power to factory transformer
7.  PT cubicle
   Supply bus voltage
 Equipped with bus PT

Secondary circuit

The secondary system of the Pl, ant, includes mainly he control, protection and monitoring system which uses normal  magnetic relays. Generator protection and the protection of transformer and wirings are realized through integrated protection devices. The secondary protection devices are integrated into one control panel, which are installed in the control room.
DG sets and 11KV busbar use the manual synchronizer to realize the grid paralleling. The voltage and frequency regulation for grid paralleling is realized through central control table.
DG sets protection in secondary system contains the following :
- Differential protection
- Reverse power protection
- Overload protection
- Over voltage protection
- Combined under voltage and over current protection
- Neutral earthing protection
- Quick trip and over current protection for 11KV busbar outgoing switch
The electrical data of all DG sets are gathered at the central control table and displayed, recorded and printed by computer.

DC system

The DC power system of the Plant has two types of load current i.e. DC24V 20AH and DC110V 80AH.
The diesel engine and related instruments use DC24V. DC110V is used for main control room and other Plant control systems, protection and communication, and emergency  lighting system.

Performance data detection

The performance data of all DG sets are communicated to the central control table and displayed, recorded and printed by computer.
- Air temp. at turbocharger inlet
- LT water temp. at air cooler inlet
- HT water temp. at engine outlet
- Lube oil temp. at engine inlet
- Lube oil pressure at engine inlet
- Pressure in LT water pipe
- HT water pressure at engine inlet
- Max explosion pressure                                                                                                                                                                                                                                                                          
- Gas temp. at cylinder outlet
- Average exhaust gas temp., on one bank
- Exhaust gas temp. at turbine inlet
- Exhaust gas temp. at turbine outlet
- Vacuum at turbocharger inlet
- Exhaust backpressure at turbocharger outlet
- Turbocharger speed

Main alarms of DG sets

Temperature
- HT water temp. at engine outlet         
- Lube oil temp. at engine inlet           
- Lube oil temp. at turbocharger outlet       
- Exhaust gas temp. at cylinder outlet                
- Average exhaust gas temp. on each bank          
Pressure
- Lube oil pressure at engine inlet  
- Lube oil pressure at turbo charger inlet        
- Fuel oil pressure at engine inlet                   
- Pressure in overspeed protection air receiver
Safety stop
- Overspeed protection
- Low lube oil pressure at engine inlet
- High HT water temp. at engine outlet

 Engine control

There are two control mode for engine i.e. local control and central control, which can be selected by the local switch. The local control can facilitate maintenance and inspection works. Besides the instruments for easy monitoring, the local control panel also contains control elements for starting, stop, emergency stop and speed regulation, which enable the start, stop, overspeed protection, emergency stop and local/central switchover operations. Each DG set is equipped with one LCP. Part of performance data such as engine speed, start air pressure, engine lube oil pressure at engine inlet are monitored by the special instruments.

Auxiliaries control

Control of auxiliaries of engine includes:
Fuel oil pump                                                          
Lube oil pump                                                         
HT water pump                                                              
LT water circulating pump                                              
Injector cooling water pump                                    
Rockerarm lube oil pump                                               
Turning gear motor                                                 
start air compressor                                                       
Generator ventilation motor (half pipe type )                  
Generator heater                                                             
The start and stop of most auxiliary pumps are controlled by the units in this system. Auxiliary unit shall have its own local control box. Some auxiliaries are controlled in distributing room.3 DG sets share one panel .

 Factory power supply

The factory power supply is taken from 11kV bus via the 1250kVA transformer to lower the voltage from 11kV down to 0.4KV and connected to switchgear which supplies power to auxiliaries control system and for workshop lighting, ventilation, security and common equipment. There is automatic power factor compensation device on the 0.4KVbusbar to guarantee the efficiency of DG sets and power supply quality.
 

β…?/B>.  Project and scope of supply

Design and building of all the buildings and facilities within the Plant. Laying of cooling tower cooling pipes for the Plant.

Boundary

The interface between the 11kV bus and the city grid is the outer side of the outgoing bus switch.
The water supply will come from the city water supply system. The interface is at 1 meter outside of the territory of the Plant.
The drain water of the Plant will go to the infiltration basin outside of the Plant.
The interface between the communication system and the city communication network is at 1 meter outside of the territory of the Plant

Scope of supply

 
Item   No.
Description
Required
Scope
Qty
Unit
US
CT
A
DIESEL GENERATING SET
A.1
Diesel Engine  12V32/40 6000kw, 750 r/min
10
Units
β–?/B>
γ€€/DIV>
A.1.1
Turbocharger
20
pcs
β–?/B>
γ€€/DIV>
A.1.2
Air Cooler
20
pcs
β–?/B>
γ€€/DIV>
A.1.3
Governor
10
pcs
β–?/B>
γ€€/DIV>
A.1.4
Fuel Injection Pumps
120
pcs
β–?/B>
γ€€/DIV>
A.1.5
Instrumentation
10
pcs
β–?/B>
γ€€/DIV>
A.1.6
Protection devices
10
sets
β–?/B>
γ€€/DIV>
A.1.7
Junction box
10
sets
β–?/B>
γ€€/DIV>
A.1.8
Engine Common base
10
sets
β–?/B>
γ€€/DIV>
A.1.9
Flywheel
10
sets
β–?/B>
γ€€/DIV>
A.1.10
Flywheel turning device
10
sets
β–?/B>
γ€€/DIV>
A.1.11
Leak Oil Tank
10
sets
β–?/B>
γ€€/DIV>
A.1.12
Wedges and anchor bolts
10
sets
β–?/B>
γ€€/DIV>
A.1.13
Maintenance platforms
10
sets
β–?/B>
 
A.1.14
Alternator with AVR,  6875kva, 50Hz, 11kv
10
sets
β–?/B>
γ€€/DIV>
A.1.15
Engine Special Tools
1
set
β–?/B>
γ€€/DIV>
A.1.16
Commissioning Spare Parts
1
set
β–?/B>
γ€€/DIV>
B
LIGHT FUEL OIL (LFO) SYSTEM
B.1
LFO Storage Tank
1
Units
γ€€/DIV>
β–?/B>
B.2
Level Indicator for LFO Storage tank
1
Set
β–?/B>
γ€€/DIV>
B.3
LFO Unloading Pumps
2
Units
β–?/B>
γ€€/DIV>
B.4
Strainers for LFO Unloading Pumps
2
Pcs
β–?/B>
γ€€/DIV>
B.5
LFO Day Tank
1
Unit
γ€€/DIV>
β–?/B>
B.6
Level Switch LFO Day tank
2
Sets
β–?/B>
γ€€/DIV>
B.7
Level Switch LFO Day tank
1
Set
β–?/B>
γ€€/DIV>
B.8
Level Gauge LFO Day tank
1
Set
β–?/B>
γ€€/DIV>
B.9
LFO Transfer Pumps
2
Units
β–?/B>
γ€€/DIV>
B.10
Strainers for LFO Transfer Pumps
2
Pcs
β–?/B>
γ€€/DIV>
B.11
LFO Flow meter
1
Pc
β–?/B>
γ€€/DIV>
B.12
Strainers for LFO Flow meter
1
Pc
β–?/B>
γ€€/DIV>
B.13
LFO Filter Unit
2
Sets
β–?/B>
γ€€/DIV>
B.14
Piping
1
Lot
γ€€/DIV>
β–?/B>
B.15
Valves
1
Lot
β–?/B>
γ€€/DIV>
B.16
Gauges 1
Lot
β–?/B>
γ€€/DIV>
C
HEAVY FUEL OIL (HFO) SYSTEM
C.1
HFO Storage Tank
1
Unit
γ€€/DIV>
β–?/B>
C.2
Level Indicator for HFO Storage Tank
1
Set
β–?/B>
γ€€/DIV>
C.3
HFO Unloading Pumps
4
Units
β–?/B>
γ€€/DIV>
C.4
Strainers for HFO Unloading Pumps
4
Pcs
β–?/B>
γ€€/DIV>
C.5
HFO Storage Tank Transfer Pumps
2
Units
β–?/B>
γ€€/DIV>
C.6
Strainers for HFO Transfer Pumps
2
Pcs
β–?/B>
γ€€/DIV>
C.7
HFO Settling Tank
1
Unit
γ€€/DIV>
β–?/B>
C.8
Level Switch for HFO Settling Tank
2
Sets
β–?/B>
γ€€/DIV>
C.9
Level Switch for HFO Settling Tank
1
Set
β–?/B>
γ€€/DIV>
C.10
Level Indicator for HFO Settling Tank
1
Set
β–?/B>
γ€€/DIV>
C.11
HFO Service Tank
1
Unit
γ€€/DIV>
β–?/B>
C.12
Level Switch for HFO Service Tank
2
Sets
β–?/B>
γ€€/DIV>
C.13
Level Switch for HFO Service Tank
1
Set
β–?/B>
γ€€/DIV>
C.14
Level Indicator for HFO Service Tank
1
Set
β–?/B>
γ€€/DIV>
C.15
HFO (Centrifuge) Separator unit
3
Sets
β–?/B>
γ€€/DIV>
C.16
HFO Conditioning Unit
4
Sets
β–?/B>
γ€€/DIV>
C.17
HFO Drain Tank
1
Unit
γ€€/DIV>
β–?/B>
C.18
Transfer Pumps for HFO Drain Tank
2
Units
β–?/B>
γ€€/DIV>
C.19
Level Switch for HFO Drain Tank
1
Set
β–?/B>
γ€€/DIV>
C.20
HFO/LO Sludge Tank
1
Unit
γ€€/DIV>
β–?/B>
C.21
Transfer Pumps for HFO/LO Sludge Tank
2
Units
β–?/B>
γ€€/DIV>
C.22
Level Switch for HFO/LO Sludge Tank
1
Set
β–?/B>
γ€€/DIV>
C.23
Sludge Storage Tank
1
Unit
γ€€/DIV>
β–?/B>
C.24
Transfer Pumps for Sludge Storage Tank
1
Unit
β–?/B>
γ€€/DIV>
C.25
Sludge Recovery Pond (Concrete made)
1
Unit
γ€€/DIV>
β–?/B>
C.26
Transfer Pumps for Sludge Recovery Pond
1
Unit
β–?/B>
γ€€/DIV>
C.27
Transfer Pumps for Sludge Pit
2
Units
β–?/B>
γ€€/DIV>
C.28
Level Switch for HFO/LO Sludge Tank
1
Set
β–?/B>
γ€€/DIV>
C.29
Piping
1
Lot
γ€€/DIV>
β–?/B>
C.30
Valves
1
Lot
 
β–?/B>
C.31
Gauges and Thermometers
1
Lot
β–?/B>
γ€€/DIV>
D
LUBRICATING OIL SYSTEM
 
 
γ€€/DIV>
γ€€/DIV>
D.1
Lube Oil Storage Tank
1
Unit
γ€€/DIV>
β–?/B>
D.2
Lube Oil Unloading Pumps
1
Unit
β–?/B>
γ€€/DIV>
D.3
Lube Oil Transfer Pumps
2
Units
β–?/B>
γ€€/DIV>
D.4
Lube Oil Sump Tank
10
Units
β–?/B>
γ€€/DIV>
D.5
Level Switch for LO Sump Tank
10
Sets
β–?/B>
γ€€/DIV>
D.6
Lube Oil (Centrifuge) Separator unit
10
Sets
β–?/B>
γ€€/DIV>
D.7
Lube Oil Cooler
10
Units
β–?/B>
γ€€/DIV>
D.8
Prelubricating oil Pumps
10
Units
β–?/B>
γ€€/DIV>
D.9
Lube Oil Circulation Pumps
 
 
γ€€/DIV>
γ€€/DIV>
D.10
Lube Oil Filter
10
Units
β–?/B>
γ€€/DIV>
D.11
Lube Oil Filter for LO Transfer Pump
2
Pcs
β–?/B>
γ€€/DIV>
D.12
Thermostatic 3-way valve
10
Pcs
β–?/B>
γ€€/DIV>
D.13
Lube Oil Regulating Valve
10
Pcs
β–?/B>
γ€€/DIV>
D.14
Piping
1
Lot
γ€€/DIV>
β–?/B>
D.15
Valves
1
Lot
β–?/B>
γ€€/DIV>
D.16
Gauges and Thermometers
1
Lot
β–?/B>
γ€€/DIV>
E
COMPRESSED AIR SYSTEM
E.1
Starting Air Compressor
2
Units
β–?/B>
γ€€/DIV>
E.2
Starting Air Receiver
2
Units
β–?/B>
γ€€/DIV>
E.3
Air Reducing Valve Unit
1
Unit
β–?/B>
γ€€/DIV>
E.4
Control Air header
1
Pc
γ€€/DIV>
β–?/B>
E.5
Control Box
1
Units
β–?/B>
γ€€/DIV>
E.6
Piping
1
Lot
γ€€/DIV>
β–?/B>
E.7
Valves
1
Lot
β–?/B>
γ€€/DIV>
E.8
Gauges
1
Lot
β–?/B>
γ€€/DIV>
F
RAW WATER COOLING SYSTEM
F.1
Cooling Tower
1
Units
β–?/B>
γ€€/DIV>
F.2
Raw Water Circulation Pumps
10
Units
β–?/B>
γ€€/DIV>
F.3
Raw Water Storage Tank
1
Unit
γ€€/DIV>
β–?/B>
F.4
Level Switch for RW Storage Tank
1
Set
β–?/B>
γ€€/DIV>
F.5
Water Treatment System module
1
Set
β–?/B>
γ€€/DIV>
F.6
Treated Water Storage Tank
1
Unit
γ€€/DIV>
β–?/B>
F.7
Level Switch for Treated Water Storage Tank
1
Set
β–?/B>
γ€€/DIV>
F.8
Treated Water Transfer Pumps(to  Engine auxiliaries)
2
Units
β–?/B>
 
F.9
Piping
1
Lot
γ€€/DIV>
β–?/B>
F.10
Valves
1
Lot
β–?/B>
γ€€/DIV>
F.11
Gauges and Thermometers
1
Lot
β–?/B>
γ€€/DIV>
G
JACKET  WATER COOLING SYSTEM
 
 
γ€€/DIV>
γ€€/DIV>
G.1
Jacket Water Circulation Pumps
10
Units
β–?/DIV>
γ€€/DIV>
G.2
Jacket Water Cooler
10
Units
β–?/B>
γ€€/DIV>
G.3
JW Thermostatic 3-way valve
10
pcs
β–?/B>
γ€€/DIV>
G.4
JW Expansion Tank
10
Units
γ€€/DIV>
β–?/B>
G.5
Level Switch for Expansion Tank
20
Sets
β–?/B>
γ€€/DIV>
G.6
Nozzle Oil cooling pump
10
Sets
β–?/B>
γ€€/DIV>
G.7
Piping
1
Lot
γ€€/DIV>
β–?/B>
G.8
Valves
1
Lot
 
β–?/B>
G.9
Gauges and Thermometers
1
Lot
β–?/B>
γ€€/DIV>
H
EXHAUST GAS SYSTEM
 
 
γ€€/DIV>
γ€€/DIV>
H.1
Exhaust Gas Silencer
10
Units
β–?/B>
γ€€/DIV>
H.2
Expansion Bellows (at Turbocharger)
20
pcs
β–?/B>
γ€€/DIV>
H.3
Expansion Bellows (at Silencer)
10
pcs
β–?/B>
γ€€/DIV>
H.4
Chimney of Smokestack
1
Lot
γ€€/DIV>
β–?/B>
H.5
Piping/Ducting
1
,
Lot
γ€€/DIV>
β–?/B>
I
INTAKE AIR SYSTEM
 
 
γ€€/DIV>
γ€€/DIV>
I.1
Air intake filter
10
Units
β–?/B>
γ€€/DIV>
I.2
Input Air expansion joint
20
Units
β–?/B>
γ€€/DIV>
I.3
Piping/Ducting
1
Lot
γ€€/DIV>
β–?/B>
J
DIESEL ENGINE CONTROL PANEL
10
Units
β–?/B>
γ€€/DIV>
K
GENERATOR & ELECTRICAL
 
 
γ€€/DIV>
γ€€/DIV>
K.1
Generator Control Pane
4
Units
β–?/DIV>
γ€€/DIV>
K.2
Station Transformer Control Pane
1
Unit
β–?/DIV>
γ€€/DIV>
K.3
Outgoing Feeder Control Pane
1
Unit
β–?/DIV>
γ€€/DIV>
K.4
Generator CB Pane
4
Units
β–?/DIV>
γ€€/DIV>
K.5
Bus PT Panel
1
Unit
β–?/DIV>
γ€€/DIV>
K.6
Station Transformer CB Panel
1
Unit
β–?/DIV>
γ€€/DIV>
K.7
Outgoing feeder CB pane
1
Unit
β–?/DIV>
γ€€/DIV>
K.8
LV General Input CB Panel
1
Unit
β–?/DIV>
γ€€/DIV>
K.9
LV CB Panel
3
Units
β–?/DIV>
γ€€/DIV>
K.11
Auxiliary Equipment Control Pane
7
Units
β–?/DIV>
γ€€/DIV>
K.12
110/24V DC System
1
Unit
β–?/DIV>
γ€€/DIV>
K.13
All Transformers
1
Unit
γ€€/DIV>
β–?/DIV>
K.14
Power and Control Cable
1
Lot
γ€€/DIV>
β–?/DIV>
L
GENERAL EQUIPMENT
 
 
γ€€/DIV>
γ€€/DIV>
L.1
Maintenance Overhead Crane
1
Unit
γ€€/DIV>
β–?/DIV>
US: To be supplied by us        CT: To be supplied by Customer
 
 
 


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