Slide 1

A SUMMER TRAINIG EXPERIENCE: IN

NATIONAL THERMAL POWER PLANT{DADRI}

PRESENTED BY:-HIMANSHU PANDEYROLL.NO-1102731043ECE STUDENT OF AKGEC(GZB)

UNDER THE GUIDANCE OF:- R.K SHIDGM, C&I Department of power plant (DADRI)NTPC was set up in the central sector in the 1975.

NTPC has installation capacity of 41,684 MW.

NTPC ranked300thin the 2013, Forbes Global 2000 ranking of the worlds biggest companies.

NTPC plans to become a 128,000 MW company by 2032.

It has 16 coal based power stations (23,395 MW)

7 gas based power stations (3,955 MW)

NTPC DADRI station has also bagged ISO 9001/ ISO 14001 certification.

NTPC has been awarded no-1,best workplace in india among large organization and the best PSU for the year 2010.

ABOUT NTPCNO. OF PLANTSCAPACITY (MW)NTPC OwnedCoal1733,015Gas/Liquid Fuel74,044

Renewable energy projects795

Total3137,154Owned By JVsCoal & Gas75,974Total3843,128 38 NTPC Stations. 17 Coal based stations. 7 combined cycle gas/liquid fuel based stations. 7 Joint Venture stations (6 coal based and one gas based). 7 renewable energy projects.

Overview of NTPC

NTPC DADRINTPC DADRI PLANT DETAILS

Installed Capacity

Coal - Stage I - 4x210 MW Stage II -2x490 MW Total =1820 MW

Natural Gas - Stage-I - Combined Cycle - 817 MW

Solar - 05MW

GRAND TOTAL = 2642 MW

Coal Source -Jharkhand Coal Fields

Water Source- Upper Ganga Canal

Beneficiery States- U.P.,Uttrakhand,Rajasthan,Delhi,Punjab,Haryana,HP,J&K,Chandigarh

Thermal Power PlantA generating station which converts heat energy of coal combustion into electrical energy is known as a steam power station.

Steam is produced in the boiler by utilizing the heat of coal combustion. The steam is then expanded in the steam turbine and is condensed in a condenser to be fed into the boiler again. The steam turbine drives the alternator which converts mechanical energy of the turbine into electrical energy.

Generation of ElectricityPrime mover coupled to Alternator

Prime mover is driven by energy obtained from various sources such asburning of coal

CONTROL AND INSTRUMENTATION Working of plant is gradually moving from a regulated to a non-regulated system with high competition.

Power Plants efficiency is dependent on quality of its operations and maintenance and C&I has a crutial role in it.

C&I has very important role in stabilization of various subsystem of Power Plant through tuning and commissioning of various Loops performance monitoring of various subsystems optimal operation of the plant at the target performance level Prevent Tripping and Forced shutdowns

Use of Latest C&I systems has resulted in increase in PLF and decreasing the manpower required per MW.CONTROL AND INSTRUMENTATION LABMANOMETRY LAB

PYROMETRY LAB

AUTOMATIC CONTROL SYSTEMS LAB

PROTECTION & INTERLOCKING LAB

FURNACE SAFEGAURD SUPERVISORY SYSTEM LAB MANOMETRY LAB This lab deals with the instruments related to pressure measurement.

This Lab. Consists o

Sensor

Indicator

Scale/Recorder

BOURDON TUBE Bourdon tube is non liquid pressure measurement device.

Typical tube contains a curved tube that is open to external pressure input on one end is coupled to needle.PYROMETRY LABThis lab deals with the instruments related to temperature measurement like:

Thermocouple

Resistance Temperature Detector (RTD)RTD Resistance Temperature DetectorUsed as a primary sensing element operates on this principle of changes in electrical resistance Temperature Range : 183C 540C Element Resistance at 0C : 100 ohmAccuracy : +/- 0.5AUTOMATIC CONTROL SYSTEM LABDeals in automating the equipments and feeding routes. Provides safe operation under all plant disturbances and component failures.Requires 24 Volt DC, 4-20 mA to excite all the controls.System installed in BTPS is OLD RUSSIAN SYSTEMS.These are ACS (Automated Control System) which are slowly being replaced by DCS (Digital Controlled Systems).PROTECTION & INTERLOCKING LABInterlocking : It is basically inter-connecting two or more equipments so that if one fails other can perform the task.

Main Equipments of this lab:RelaysFusesCircuit BreakersFusesIt is a sheet piece of metal.

It melts if a heavy current flows through it and breaks the circuit.

Usually silver is used as a fuse material.

The main operation of a relay comes in places where only a low-power signal can be used to control a circuit.

It is also used in places where only one signal can be used to control a lot of circuits.

They are used to switch the signal coming from one source to another destination.RelaysFURNACE SAFEGUARD SUPERVISORY SYSTEM LABIn this lab, fuel firing system is monitored in the furnace.

Oil is sprayed first for firing of coal in furnace so Light Diesel Oil (LDO) is used for ignition.

The rate of oil flow is 6000 L/hr before firing. Safe operation of plant

Better visibility, close monitoring of Plant parameters and events for fault analysis

Lower the cost of generation

Increase equipment life

Minimize environmental effect

Maximize efficiency

Energy conservationOBJECTIVE OF C&I SYSTEMS

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