Substation
EAST WEST UNIVERSITYDepartment of Electrical and Electronics
EngineeringPresentation OnASHUGANJ POWER STATION COMPANY
LTD(APSCL)
1Presented By-Abdulla Al-Amin(2010-2-80-019)Omar Faruq
(2010-2-80-018)Md. Rejaul Hassan (2011-1-80-064)ContentsCompany
Profile (APSCL)Generator Steam power plantSubstationCombined Cycle
Power Plant (CCPP)Conclusion
2Company Profile (APSCL)APSCL is one of the largest power
station in Bangladesh.Location: 90 km North-East of Dhaka on the
left bank of the river Meghna. Installed Capacity : 687MW Present
de-rated capacity : 671 MWNumber of Generation Units: 7 (5 Steam
Turbine + 1 Gas Turbine + 1 Gas Engine)Area of Land: 263.55
Acres
MissionTo increase the Capacity to 1500 MW by 2015. VisionTo
become the leading power generation company in Bangladesh.
3
GeneratorGenerator It is a device which converts mechanical
energy to electrical energy Equipment's of Generator Rotor Stator
Slip ring Carbon brushWorking PrincipleWhen a magnetic flux cut a
conductor than an electromotive force (emf) is induced according to
Faradays laws of electromagnetic induction. This e.m.f. causes a
current to flow if the conductor circuit is closed.4
Steam Power PlantA plant using steam as prime movers to drive
electric generating apparatus called steam power plant.5Unit
numberRated capacityTotal
capacityUnit-164MW128MWUnit-264MWUnit-3150MW450MWUnit-4150MWUnit-5150MW
Fig: Steam power plant at APSCLSteam Power PlantMain
sectorsWater treatment plantBoilercondenserTurbine
6
Fig: Water treatment plant at APSCL
Fig: Boiler at APSCLFig: Condenser at
APSCLSubstationEquipmentsTransformerCircuit BreakerRelay Lightning
ArresterWave trapControl RoomBattery and Battery charger
roomTransmission LineBus bar
Substation (Continued.)TransformerPower transformerChanges
voltage level but power and frequency remain constantCurrent
Transformer (CT)Steps down the currentPotential Transformer
(PT)Steps down the voltage
Fig.: Current Transformer Fig.: Potential Transformer Substation
(Continued.)Circuit BreakerOil Circuit BreakerAir Blast Circuit
BreakerSF6 Circuit Breaker
Fig.: Oil Circuit Breaker Fig.: Air Blast Circuit BreakerFig.:
SF6 Circuit BreakerSubstation (Continued.)RelayLightning
ArresterRod gapHorn GapWave trapControl Room
Fig.: Lightning ArresterFig. : Wave trapFig.: Control Room Gas
Turbine UnitsDiesel engineTorque converterFlame
detectorCompressorCombustion ChamberDiffuserAir intake filter
Fig.: Block diagram of a gas turbine power plantCCPP
(Continued.)Steam turbine unitWaste Heat Recovery UnitBenefits of
Waste Heat Recovery UnitPump used in CCPPBoiler feed pumpCooling
water pumpCCPP (Continued.)
Fig.: Boiler feed pumpProtection and Control System of CCPPLube
oil systemGovernor or Speed ControlCooling SystemPressure control
systemTemperature control systemVibration control system
Fig. : Lube oil cooling plantCCPP (Continued.)Problem
FacedUnable to see megger testRecommendationsThe time period should
be increased to 90 days for Internship program.ConclusionWe
gathered practical knowledge
Conclusion
