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SOLAPUR SUPER THERMAL POWER PROJECT

(2x660 MW)

STEAM GENERATOR PACKAGE

TECHNICAL SPECIFICATION

SECTION-VI

BID DOCUMENT NO. : CS-9575/9571/0370/0360/9586-102-2

SUB-SECTION - IIIC

CONTROL & INSTRUMENTATION SYSTEM

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CLAUSE NO. SCOPE OF SUPPLY & SERVICES

SOLAPUR SUPER THERMAL POWER PROJECT(2X660 MW)


TECHNICAL SPECIFICATIONSECTION-VI

BID DOC. NO.:CS-9575/9571/0370/0360/9586-102-2

PART-A

SUB-SECTION-III:C

CONTROL &INSTRUMENTATION

SYSTEM

PAGE 1 OF 8

CONTROL AND INSTRUMENTATION SYSTEM

1.00.00 GENERAL

1.01.00 The Contractor shall provide Control & Instrumentation system for control, monitoring andoperation of the systems, equipment etc. covered under these specifications, in all regimes of

operation in safe and most efficient manner. The scope of work for the equipment, materialand system to be furnished in accordance with this specification shall include design,engineering, manufacture, fabrication, assembly, pre-shipment testing at manufacturer'sworks, proper packing for transportation, delivery at plant site, unloading, storage,installation, interconnection with related plant and equipment, calibration, testing,commissioning and putting the Control and Instrumentation System together with allaccessories, auxiliaries and associated equipment as specified hereinafter in a fullyoperational condition and in the manner acceptable to the Employer as covered under thisspecification. The Contractor shall also provide all material, equipment and services whichmay not be specifically stated in the specifications but are required for completeness of theequipment/systems furnished by the Contractor and for meeting the intent and requirementsof these specifications. The work shall be consistent with modern power plant practices andshall be in compliance with all applicable codes, standards guidelines and safetyrequirements in force on the date of award of the contract. The requirements of statutory

Authorities (e.g. MOEF, Inspector of Factories, IBR, TAC, CPCB/SPCB/CERC etc withregard to various plant areas like main plant, Fuel Oil Plant/System, Chlorinating Plant, Firefighting system, Emission measurements etc.) shall be complied even if not actually speltout.

1.02.00 It shall be the responsibility of the Contractor to coordinate with Employer and offer Controland Instrumentation System to meet the actual requirements of the plant and furnish acomplete system as per clause 1.01.00 above, and also to coordinate with other systemvendors for proper interfacing of Control and Instrumentation system vendors with all otherrelated equipment and systems.

1.03.00 The following clauses describe the brief scope of supplies only. The detailed technicalspecifications are stipulated under various Control and Instrumentation Sub-sections, Part -B, Section-VI of the specification as well as in various other Parts of the Technical

Specifications.

1.04.00 Contract quantities shall be as specified under Appendix-I to Subsection-IIIC of Part-A,Section-VI and as required to make the system complete.

1.05.00 Unless explicitly stated to be common for all the unit(s), the Contractor shall provide allsystem/equipment described in this specification for each of the unit(s).

2.00.00 DISTRIBUTED DIGITAL CONTROL, MONITORING & INFORMATION SYSTEM (DDCMIS)

2.01.00 Latest state of the art microprocessor based Distributed Digital Control, Monitoring &Information System (DDCMIS) meeting the previous clause shall be provided comprising ofthe following as a minimum and meeting all requirements specified under Sub-sectionDDCMIS of Part -B, Section-VI of Technical Specification.

2.02.00 Control system (Including its Measurement system)

2.02.01 The control system shall broadly consist of the following system(s):-

2.02.02 The SG C&I system comprising of Burner Management system (BMS), Secondary AirDamper Control (SADC), Soot Blowers Controls, Aux. PRDS control, SCAPH drain tanklevel control, Separator Drain Control System, Atomising Steam/Air Pressure Control, Fuel oil

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BID DOC. NO.:CS-9575/9571/0370/0360/9586-102-2

PART-A

SUB-SECTION-III:C


SYSTEM

PAGE 2 OF 8

header pressure/flow control, Mill fire control, Mill lube oil system control and control ofcommon systems like FOPH system, FO unloading control system, Mill reject system etc.The BMS shall comply with NFPA 85. The Master Fuel Trip (MFT) Sub Group of BMS shallcomply with VDE0116, VDE 0160 etc.

2.02.03 The functional grouping of the above system(s) shall be as per Drawing No. 0000-101/102-

POI-A-009. In addition to the controls indicated in the above drawing, all controls exceptthose indicated in exclusions at clause no 2.17.00 are to be provided in this package.

2.02.04 The above system(s) shall include their respective measurement system for signalacquisition, conditioning and signal distribution of various types of inputs/outputs, meetingspecification requirements including respective Hardware requirements as stipulated in Sub-section IV;I-2(DDCMIS), Part-B, Section-VI of Technical Specification.

2.03.00 Human - Machine Interface & Plant Information System (HMIPIS)

2.03.01 HMIPIS configured around latest state-of-the art servers/Workstations with open architecturesupporting OPC/TCP/IP protocols, etc. shall be provided. Any of the two options of HMIPISas detailed out in Sub-section DDCMIS of part -B, Section-VI of Technical Specification shallbe supplied. This will include the following as a minimum:

2.03.02 Operator Work Station (OWS), mounted on Control Desk (UCD). (LVS Work Stations inCentral Control Room shall be provided by Employer.)

2.03.03 Processing Stations (Servers/Workstations) in redundant configuration as per DDCMISSupplier's standard practice shall be used for historical storage and retrieval and long termstorage and retrieval of data.

2.03.04 Network ready Colour laser printers for taking printout of logs/reports colour hardcopy and forplotting curves/graphs etc.

2.03.05 The quantity of peripherals of HMIPIS shall be as specified under Appendix-I to Subsection-IIIC of Part-A, Section-VI.

2.04.00 Data Communication System

2.04.01 System Bus connecting Control System and HMIPIS. Other bus systems for connectingvarious systems/subsystems of DDCMIS like Cubicle Bus, Local Bus, I/O Bus ( IncludingRemote I/O Bus) soft links (including those from Field Bus based temperature transmitter) aswell as within systems/sub-systems of DDCMIS. All the bus systems shall be redundantexcept for back plane buses which can be non-redundant.

2.05.00 System programming, diagnostics & documentation facility

2.05.01 The programmer station shall be provided for configuration/tuning/structuring of controlsystem and program development /modification of HMIPIS for each of the unit(s). AWorkstation based system documentation facility for automatic generation of systemdocumentation shall be provided for each of the unit(s) to achieve paperless documentationfor the project. The diagnostic system shall have elaborate diagnostics facility giving details

of fault in individual channels of I/O modules, other modules and cabinets on Monitors in formof display and text messages.

2.06.00 Power Supplies

2.06.01 Redundant power packs/ supplies for powering the systems described above in systemcabinets with necessary auctioneering and distribution.

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PART-A

SUB-SECTION-III:C


SYSTEM

PAGE 3 OF 8

2.07.00 Cabinets

(a.) System cabinets housing electronic modules and power pack supplies of systemdescribed above.

(b.) Marshalling cabinets separate from system cabinets for terminating inputs from field,

MCC/SWGR etc., for further wiring to control system and for terminating outputs fromcontrol system to MCC/SWGR etc.

In case Bidder's system design requires the termination cabinet independent fromsystem cabinet, the marshalling cabinets can be combined with the terminationcabinet. In case, the termination arrangement is part of the system cabinet,independent marshalling cabinets shall be provided.

(c.) Relay cabinets housing relays for providing contact outputs by control system toother system wherever contacts are used in circuit/scheme of Control supply/powersupply of more than 24 V and in cases where the VA burden is more than the VAburden the Output module can drive. Alternatively, these relays can also be mountedin termination/marshalling cabinets also. It may be noted that relays can not bemounted in system cabinets.

2.08.00 Signal Exchange

Bidder shall provide all the required signal exchange between SG-C&I control system andBOP-C&I/TG-C&I DDCMIS as per Sub-Sec-IV, I-2(DDCMIS), Part-B, Section-VI of TechnicalSpecification.

2.09.00 Warranty and Annual Maintenance Contract

2.09.01 Warranty and Annual Maintenance Contract (AMC) for DDCMIS, as per Sub-section IV;I-2(DDCMIS), Part -B, Section-VI of Technical Specification.

3.00.00 MAIN EQUIPMENT RELATED CONTROL & INSTRUMENTATION SYSTEM

Other special C&I systems shall be provided by bidder including but not limited to thefollowing as a minimum as per the requirement of Sub-section-IV;I-3,SG Related Control &Instrumentation System Part -B, Section-VI of Technical Specification.

Flame Monitoring System and Flame Detector Testing Kit.

Coal-Feeder Control & Instrumentation.

Electromatic safety valves.

Furnace temperature probes.

Acoustic Pyrometer.

Furnace and Flame Viewing System.

Acoustic Steam Leak Detection System

Level switching system for Driplegs employing conductivity type probes.

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PART-A

SUB-SECTION-III:C


SYSTEM

PAGE 4 OF 8

Mill Fire Detection System.

Temperature elements for Air Heater fire detection system

4.00.00 MEASURING INSTRUMENTS (PRIMARY & SECONDARY)

The following shall be provided as a minimum, meeting specification requirements of Sub-section IV;I-4 MEAS INST of Part-B, Section-VI of Technical Specification.

4.01.00 Primary instruments like Microprocessor based transmitters employing HART protocol,thermocouples & RTDs along with temperature transmitters, pressure/diff.pressure/temperature/flow switches & gauges, flow sensing elements (orifice plates, flownozzles, impact head type elements etc), Ultrasonic, Radar type level transmitters, positivedisplacement type flow transmitters, Oxygen analysers etc. for:

(a) Main plant and auxiliary plant, as indicated in enclosed tender diagrams (P&I Ds /flow schemes) as a minimum.

(b) Integral to equipment which are not indicated in the tender drawings, but are required

for control, monitoring and operation of the equipment / plant systems for which noP&IDs are enclosed, all the instruments shall be provided to meet the actual systemrequirements and meeting redundancy and other requirements specified undertechnical specifications subject to Employer's approval.

(c) For Binary and analog inputs required in major equipment (e.g. Furnace) protectiontriple-sensing devices shall be provided. Binary and analog inputs, which are,required for protection of more than one equipment as well as protection signals forHT Drives (fed by a supply feeder of ratings 3.3 kV onwards) etc., triple sensingdevices shall be provided.

(d) For modulating control of drives supplied by the bidder and control by Employerscontrol system, redundant field instruments are to be provided.

(e) For other critical binary and analog inputs required for protection and interlockpurpose of other equipment (e.g. those interlocks which may result in loss ofgeneration, non-availability of a major equipment etc.), triple sensors shall beprovided.

(f) Temperature elements, electronic transmitters etc. are to be provided for all thecases. Use of process actuated switches is acceptable only in the cases as indicatedin the tender drawings.

(g) All instruments on SG scope of piping/ducts/equipments shall be provided by thecontractor (unless indicated otherwise).

4.02.00 Head mounted/ Rack mounted/ Enclosure mounted temperature transmitters (TTs) for

temperature elements (TEs) in Contractors scope are to be provided by the contractor as per

the following.

a) In case of multiple measurement of temperature for any application resulting intrip/protection, where logic implementation tolerates failure of one TE (e.g., 2v3, 2v4,etc.), for only one of such TEs, dual TT is to be provided. In case of otherapplications where single TE causing trip/ protection (either part of singlemeasurement or part of multiple measurement not tolerating failure of any TE, e.g.,1v2, 1v3, 1v4, etc.), for each of such TEs, dual-input TT shall be provided.

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BID DOC. NO.:CS-9575/9571/0370/0360/9586-102-2

PART-A

SUB-SECTION-III:C


SYSTEM

PAGE 5 OF 8

For other applications where usage of dual input TTs is recommended by theequipment manufacturers the same shall also be acceptable.

The exact applications for which this type of transmitters is to be provided shall befinalized during detailed engineering.

Bidder shall provide enclosure/racks for mounting the dual-input TTs. However,same can also be mounted in nearby LIE/LIRs housing PT/DPT/LT/FT beingsupplied by the vendor. The number of Temperature Transmitters in LIEs/ LIRs andthe internal arrangement of the same in enclosure/racks shall be subject toEmployers approval during detailed engineering.

For balance applications, following types of temperature transmitters shall beprovided:

b) Head mounted transmitters may be provided for temperature elements which arelocated in accessible areas as decided during detailed engineering.

c) Remaining transmitters are to be DIN-rail mounted in JBs to be provided by the

bidder. Cabling from TE to TT and TT to terminal blocks of JB is in the scope of the

bidder.

d) Temperature transmitters with Profi Bus / Foundation Field Bus/ any proven bussystem / any other suitable interface with SG-C&I system hardware for Boiler SH/RHmetal temperature measurement applications are also to be provided by Contractor.

In case temperature transmitters are not provided with Profi Bus/Foundation FieldBus/ any proven bus system, remote I/O with required interfacing with SG C&I shallbe provided.

5.00.00 ELECTRIC POWER SUPPLY SYSTEM

Sets of Microprocessor based modular 24 VDC power supply system shall be used forpowering the control systems including its network devices. For number of sets, referAppendix-I to Subsection-IIIC of Part-A, Section-VI.

Contractor shall provide power supply distribution panels/cabinets/boxes for sub distributionof DC/Main UPS/Utility feeders on as required basis. The power supply distribution box shallinclude change over circuitry, switch fuse units, MCBs , terminal blocks etc. suitable forapplication.

6.00.00 PROCESS CONNECTION & PIPING

6.01.00 Process connection & piping including all impulse piping, sample piping, pneumaticpiping/tubing, valves, valve manifolds, fittings and all other accessories required for properinstallation & completeness of impulse piping system, sampling piping system and air supplysystem, as stipulated under Sub-section PCP, Part-B, Section-VI of Technical Specification.

6.02.00 For all the instruments in contractors scope of supply, Local Instrument Enclosure (LIEs)shall be provided to group & mount transmitters, process actuated switches and temperature

transmitters in open and dust prone environment like Boiler/Mill area. Local instrument Racks(LIRs) shall be provided to group & mount transmitters, process actuated switches andtemperature transmitters in cleaner areas like TG hall. LIE/LIRs are not required for Fuel Oilapplications and off site areas.

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BID DOC. NO.:CS-9575/9571/0370/0360/9586-102-2

PART-A

SUB-SECTION-III:C


SYSTEM

PAGE 6 OF 8

7.00.00 INSTRUMENTATION CABLES, CONTROL & POWER SUPPLY CABLES & CABLESSUB-TRAYS

7.01.00 All instrumentation cables twisted & shielded, FRLS PVC insulated, including thermocoupleextension cables and prefabricated cables (with plug-in connectors), Power Supply cables,optical fiber cables other than shown in exclusion, as applicable for interconnection of all

equipment/system/devices in Contractor's scope as well as for connection of signals from/tosystems like MCC/LT SWGR/HT SWGR/Fuel Oil handling System/Temperature Transmitter(even if they are not in Contractor's Scope.) Etc. along with necessary laying & terminationaccessories, hardware etc. meeting requirements specified under Sub-section-IV;I-7, INSTCABLE, Part -B, Section-VI of Technical Specification.

7.02.00 All the instrument which are in the scope of Bidder and connected to Employers controlsystem shall be wired upto the input terminals of the JB by the Bidder. The contractor shallprovide Junction boxes and all sub trays along with supporting, connecting hardware etc.required for laying of instrumentation, control, power and other cables etc. up to main cabletrays on as required basis.

7.03.00 The cable interconnection philosophy to be adopted shall be such that extensive grouping ofsignals by large scale use of field mounted Group Junction Boxes (JBs) at strategic locations

(where large concentration of signals are available, i.e. valves, limit and torque switches,switchgear) is done and consequently cable with higher number of pairs are extensivelyused. However, it shall be ensured that any fault in any one cable shall not result in trip of SGand important auxiliaries. Contractor shall provide redundant cable through separate andindependent routes for redundant instruments, drives and field devices.

8.00.00 CONTROL VALVES & ACTUATORS

8.01.00 Control valves, actuators and accessories, shall be provided meeting requirements specifiedunder Sub-section CONTROL VALVE, Part-B, Section-VI of Technical Specification.Specially designed valves/trims to prevent cavitation and limit noise and control outletvelocity, shall be provided.

8.02.00 Microprocessor Based Electronic Positioner is to be provided with all the Control valves and

all control dampers being provided by the contractor.

9.00.00 CONTROL AND INSTRUMENTATION FOR PLANT AUXILIARY SYSTEMS

9.01.00 Instrumentation and Control System with interlocks, protection and annunciation of themechanical common auxiliary systems as mentioned below shall be provided. All necessaryequipments / system for control, monitoring and operations of the plants as well as theincomers and bus couplers shall be provided.

For certain plants, facility for control from DDCMIS shall be provided as mentioned below..

Sl No Auxiliary Plant Control System Connectivity/operation

01 Auxiliary Boiler (ifapplicable)

Independent controlsystem in SG-C&I

hardware

Dual two way Ethernetconnectivity to Station

LAN for information

02 Fuel Oil Pressurization /Heating System (FOPH)& Fuel oil unloadingsystem

Independent controlsystem in SG-C&I basedHardware. I/O count forFuel oil unloadingsystem is 200 binary and

Dual to way Ethernetconnectivity to station LANfor information and control.Localoperation of Fuel oilHandling System

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PART-A

SUB-SECTION-III:C


SYSTEM

PAGE 7 OF 8

Sl No Auxiliary Plant Control System Connectivity/operation

20 analogs. through GIU.

03 Mill Reject System(Unitised System)

SG C&I Based ControlSystem from Control

Room

Graphical interface unit(GIU) based local

operation apart from CCR.

04 Air Compressor Systemincluding Air-Compressors of MillReject System

If the controller is integralto compressor, thenMicroprocessor/PLCbased control system asper vendor's practice forindividual Aircompressors control.

If the controller forindividual compressors isnot integral tocompressor then control

shall be through StationC&I (in Employersscope).

For both the cases, overall Control shall bethrough Station C&IPackage (in Employer'sscope).

Dual two way EthernetConnectivity to Station C&Ipackage for informationand Control of AirCompressors. (Applicableonly for compressors withintegral controllers)

05 LP Dosing and Oxy-genated treatment

Control from Station C&IPackage

(Instrumentation in Contractor's scope)

06 Equipment CoolingWater System

Control from Station C&ISystem

10.00.00 TYPE TEST REQUIREMENT

10.01.00 The type tests to be conducted for C&I systems & equipments shall be as detailed out inSub-Section-IV;I-9, C&I TYPE TEST, Part-B, Section-VI of Technical Specification.

11.00.00 PLANT PERFORMANCE ANALYSIS, DIAGNOSIS & OPTIMIZATION SOFTWARE

11.01.00 The Contractor shall provide a PC based On-line Plant Performance Analysis, Diagnosis &

Optimization system (PADO) for the station, which will provide proper guidance to the plantoperator.

11.02.00 The PADO system shall provide the following functions in a modular and seamlesslyintegrated environment, using a common plant model and a dynamically shared database.

(i) Performance analysis and monitoring of systems and components.

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PART-A

SUB-SECTION-III:C


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(ii) Emission Analysis and monitoring.

(iii) System and performance diagnosis.

(iv) System and performance optimization.

(v) Boiler performance optimization including optimized operation of sootBlowing system.

(vi) Boiler stress condition analysers.

(vii) Interactive water and gas chemistry management system.

(viii) Regenerative cycle performance optimization system.

11.03.00 Details regarding software, hardware, instruments etc are elaborated in PADO sub-section.

12.00.00 TOOLS & TACKLES

12.01.00 The Contractor shall furnish a complete new set of all special tools and tackles of reputed

make and model which are required for erection, ease in maintenance to have minimumdown time, testing and calibration of all the equipments and systems to be provided by theContractor under this specification for C&I systems.

13.00.0 MANDATORY SPARES

Mandatory spares shall be provided as per the list indicated in Subsection-VII in Part A ofTechnical specification.

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SECTION-VIBID DOC. NO.:

CS-9575/9571/0370/0360/9586-102-2

PART-A

SUB-SECTION-III:C

CONTROL ANDINSTRUMENTATION

APPENDIX - I

PAGE 1 OF 11

APPENDIX-IGENERAL REQUIREMENTS OF CONTRACT QUANTITIES

The scope of C&I systems under this specification (SG-C&I system) is covered in Part-A andPart-B of this specification. The purpose of this appendix is to supplement the scope given in

Part-A and Part-B of technical specification and is not intended to give total Scope. TheContract quantities of many subsystems covered under Part-A and Part-B of technicalspecification are generally not reproduced here to avoid duplication. However, in case of anyconflict or repetition, the more stringent requirements among them are to be complied with.

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APPENDIX - I

PAGE 2 OF 11

1.00.00 DDCMIS

Contractor should note that he has to supply system complete in all respects with allsoftware, hardware, accessories, interfacing equipment required, etc., whether specificallystated herein or not, to make the system operational and fully meeting the functional,parametric, hardware, software, interfacing, quality assurance & testing requirements within

the quoted lumpsum price.

The Contractor shall provide functional groups as indicated in Drg. No. 0000-101/102-POI-A-009. For each of the functional groups, separate sets of redundant controllers, I/O modules,communication controllers, power packs/modules, etc. shall be provided.

No. of Inputs/Outputs

The quantity of I/Os, drives and other equipment related to Control system, HMIPIS shall beprovided on as required basis. However, the no. of inputs and outputs to be considered foreach type of drive shall be as follows:-

TABLE-I

NO.OF INPUTS/OUTPUTS FOR DRIVES

Type ofdrive

No. ofinputs

(changeover)

No. ofinputs(Non-changeover)

Totalno. ofbinaryinputs

perdrive

No. ofBinary

outputs(24

VDC)

No. ofBinary

outputs(contact

type)

Totalno. ofanaloginputs

perdrive(4-20mA)

Totalno. of

Analogoutputs

perdrive (4-20mA)

HT 1X2* 2 4+ 2 2

LT 1 1 3 2MOD/MOV 1 1 3 2

MOVI/MODI 1 1 3 2 1

DSOV 3 3 2

SSOV 3 3 1

Elect Breakers(Non-Synch) 1 1 3 2

Elect Breakers(Synch) 1X2* 2 4+ 2 1X2

ModulatingDrive 1 1

Pneumaticoperated on-off

drive 2 2

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PAGE 3 OF 11

1.01.00 GENERAL REQUIREMENTS

1. Input/output signal multiplication, and distribution of process, system and software generatedpoints, etc. required within the DDCMIS are to be provided by the Contractor on as requiredbasis and these are not included in the above list.

2. For signal exchange with BOP-C&I system and TG-C&I system for information purpose,Contractor shall provide suitable data link/interface as specified in item Signal Exchange,Subsection DDCMIS, Part B, Section VI. of the specification. However, signals required to beexchanged between SG /TG/ BOP C&I system for protection of turbine, boiler and and otherHT drives as well as for CMC shall be hardwired. The same shall be provided on as requiredbasis.

3. The quantity of drive related inputs and outputs shall be derived from Table-I by the Bidderand the quantity of input/output modules shall be decided accordingly.

4. Bidder shall identify in his offer the different types of I/O modules offered by him which as perhim are having directly or otherwise an I/O capability, (e.g., Analog input/output module,binary input/output module, etc.) meeting all specified requirements. However, the Contractorshall note that all such offered modules having I/O capability shall be acceptable only if theymeet all the functional and hardware requirements of I/O modules as specified elsewhere.

5. The I/Os for common systems shall be provided only for one unit and for balance units theseI/Os need not be provided.

6. Required Limit switch contacts of valves/dampers, breaker/contactor status contacts & otherinputs etc. shall be fed as inputs to Control System at one place. The Contractor shalldistribute these inputs within Control System or other places wherever required forcommands, status indication, interlock and protection of drives, sequence logic, loops & otherfunctions.

7. Spare capacity for the system as indicated under item System Spare capacity, SubsectionDDCMIS, Part B, Section VI is not included and shall be additionally provided by theContractor.

8. Suitable devices (like diodes, etc) are to be provided, if required, for signals which are to beshared between more than one I/O modules.

9. The non-changeover DI signals (NO/NC) in Table I indicates that either NO or NC can be

connected to control system, as per process requirement.(i) In the Table Drive I/Os, wherever contact type binary outputs are specified

(which are applicable for drives specified in Table-I), relays are to be provided.These relays shall be driven by 24 V DC command outputs through DO modules. Incase redundancy in outputs of these types is required, redundancy shall be providedonly in DO modules, but not for the relays.

(ii) The power supply for energizing such drives in the field shall be routed throughcontacts of the above mentioned relays. The monitoring of power supply extendedthrough contacts of the relays shall be done for a group of drives. The no. of drivesper group, can be maximum 4. One contact of power supply monitoring device(relay/ MCB with contact or equivalent scheme, as approved by Employer duringdetailed engg. stage) shall be wired to DDCMIS, and the same shall be used fordrive disturbance for all the drives in the group.

10. Redundancy in binary and analog outputs for drives shall be as per Table-II

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Table-II

Redundancy of Command Output Signals (Both Modulating and Binary)

Also, please note that:1. Output signals to other systems shall remain as per interlock and protection philosophy.2. Output signals for indications on mosaic items/local panels (as applicable) shall not be

redundant.

11. The contact rating of DO (contact) type outputs shall be as follows. The contact rating forsuch outputs for SG DDCMIS shall be minimum 60VA, and shall be suitable for contactinterrogation at 24 V DC. For such outputs for other DDCMIS systems, relays shall beprovided for each of such outputs, and the rating of contacts of the relays shall be asspecified in Part-B of specification.

12. Additional note for TableDrive I/Os

(*) The on/off status of HT drives of Unit DDCMIS will be wired to DI modules in parallel. Theopen/ close status of sync type electrical breakers of Unit DDCMIS will be connected inparallel to DI and DISOE modules. For these types of drives in other DDCMIS systems thestatus will be connected to only one DI module.

2.00.00 The following back-up instrumentation and Secondary instruments shall be provided by theEmployer under Station C&I package as a minimum for SG package applications. The exactquantity of the back-up instrumentation shall be as finalised during detailed engineering inconsultation with the Contractor. Contractor has to supply all the required input outputmodules in SG C&I part of DDCMIS for interface of these modules without any costimplication to the employer. The quantity indicated here is for each unit.

(i) 2 PB + 3 LED 10 nos.

(ii) EMERGENCY TRIP PB 5 nos.

SNo

System/Equipment Requirement of Redundantoutputs

1 ERV Required2 FTP Not required

3 Mill Reject Handling system:

a. Compressors Required

b. Equipment other than compressors Not required

4 SCAPH Not required

5 FOPH, CBD:

a. Control valves Required

b. Equipment other than control valves(e.g. isolation valves etc.)

Not required

6 Sootblower control system Not required

8 SADC system Required

9 Outputs for indications in all systems Not required

10 Coal/Mill system Required

11 Oil system Required

12 Scanner air and seal air systems Required

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3.00.00 INDEPENDENT CONTROL SYSTEMS

Sl No DDCMIS SYSTEM LOCATION

1. Auxiliary Boiler(if applicable) Auxiliary Boiler building

2. Fuel oil Pressurization system Fuel Oil pump house

4.00.00 LIST OF AREAS FOR WHICH SOFT SIGNALS ARE TO BE CONNECTED TO SG C&I ORBOP C&I

SlNo

Area System towhich

Connected

Minimum Qtyof links/Location

Type Qty ofsignals

1. SteamGeneratorfloor per Unit

SG C&ISystem ofeach unit

Two nos. perunit

Field bus /Profibus/otherindustry standardbus for temperaturetransmitter

2. SG Charger

in each unit

SG C&I of

respective unit

RS 485/ RS232 20 per

charger

5.00.00 Control Systems of the auxiliary systems shall be provided with connectivity toDDCMIS systems as follows:

SlNo.

Description of thesystem

System towhich to beconnected

Remarks

1. Control system of Fuel OilPressurizing/HeatingSystem

Station wideLAN under BOPC&I

2. Air compressor system BOP C&I forsupervisorycontrol of allcompressors.

If any signals are required forcontrol or monitoring and thesame are not availablethrough link, the same shallbe hardwired to BOP C&I .

3. Air compressors of Millreject system

BOP C&I

4. Auxiliary Boiler Controlsystem

SG C&I (if applicable)

6.00.00 The quantities of other equipments related to Control System, HMIPIS etc is enclosed atAnnexure-1 to this APPENDIX.

7.00.00 24 V DC POWER SUPPLY SYSTEM

24 V DC Power Supply system shall be of continuous duty for the following estimated loads:

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Description of LoadsContr-actors

load

Empl-oyersload

TotalRating(Amp)

Quantity

per unitCommon

I. UNIT SG C&I :- 24 V DC for allContractors load including

a. SG-C&I system (see note-1below);

b. Any other load of Contractorsupplied system/equipmentrequiring 24 V DC supply

*

*

*

- * 2 sets

II. Auxiliary Boiler (ifapplicable):- 24 V DC for allContractors load including

a. Control system equipmentlocated in Auxiliary Boiler

building.

* - * 2 sets

III. Fuel Oil Pressurizing system:- 24 V DC for all Contractorsload including

a. Control system equipmentlocated in Fuel Oil pump house

*

*

10 A -- 2 sets

The rating marked * are for instrument/equipment/system being supplied by Contractor.The Bidder shall estimate the requirement of these and provide additional capacity marginof 5% of the estimated Contractors load for all the items and thereafter add the Employersloads to get the load for the entire system.

Note:

1. Control system would cover as a minimum, controllers, I/Os, associated modules etc.

as well as, data communication system & Network devices (like LAN Switches),related to control system associated relays and solenoid valves driven by 24 V DCsystem, etc;. Any other loads of Contractor requiring 24 V DC supply shall also beincluded in this calculation.

2. The configuration of Sl. no. I (i.e. UNIT SG C&I) shall be as per cl 1.03.00 (A),Subsection-IV I-5 of Part-B (Electrical Power Supply) and configuration of Sl. no. II &III (i.e. Auxiliary Boiler & Fuel Oil Pressurizing system) shall be as per cl 1.03.00 (B),Subsection-IV I-5 of Part-B (Electrical Power Supply).

3. Power supply of integral microprocessor based control system like compressors shallbe redundant with battery back-up and shall be as per with manufacturers standardpractice subjected to the approval of Employer during detailed engineering.

4. One set of manual discharge resistance bank of adequate capacity shall be provided

per unit for the main plant 24V DC system of SG C&I control system.

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7.01.00 UPS

7.02.00 Uninterrupted Power Supply of required capacity shall be provided by the Contractor as perfollowing:-

Description of Loads

Qty

I. HMI and other relevant equipment at Fuel Oil Pump House 1 no.

II. HMI and other relevant equipment at Auxiliary Boiler (if applicable) 1 no.

8.00.00 PROCESS CONNECTION AND PIPING

8.01.00 The Contractor shall provide, install and test all required material which is necessary forproper installation and interconnection of the equipment/systems furnished by the Contractoras per this specification and their integration with Employer's main equipment/systems as perTechnical Specification requirements and its sub-clauses, enclosed installation drawings andother applicable clauses on as required basis. The Contractor shall furnish, within his quotedlump sum price, all hardware and accessories to ensure that the equipment/systemsfurnished against this specification form a complete and operational system meeting theintent and requirement of this specification.

8.02.00 The Bidder shall note that no price adjustments shall be applicable for the equipment andservices furnished as per this sub-section since the Contractor has to furnish theseequipment/services on as required basis.

8.03.00 Local Instrument Enclosures (LIEs) and Local Instrument Racks (LIRs)

a) Local Instrument Enclosures (LIEs) complete with all fittings, mountings &accessories etc for each unit on as required basis.

b) Local Instrument Racks (LIRs) complete with all fittings, mountings & accessoriesetc. for each unit on as required basis.

9.00.00 The following contract quantities of equipments for local operation shall be furnished for thefollowing systems.

Sl No Item Description Qty per unit Application and location

1 Graphical Interfaceunit.

1 no per compressor Operation of Compressors ofMill reject system

2 Graphical Interfaceunit.

1 no per compressor Operation of Compressors ofInstrument air system

Minimum specifications of Graphical Interface unit shall be as follows:

Sl No. Description

1. Power supply 24 V DC/as per manufacturers standard practicefor Air compressors

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2. Display Type Colour, TFT screens

3. Humidity & OperatingTemperature

5-95%, 0-50 deg C

4. Protection class IP-65 for extremely dust prone area, otherwise IP-55. Enclosure shall be provided to prevent ingressof dust.

5. Keys Function keys and numeric keys

6. Interfacing requirements Interface with SG C&I systems

7. Functional requirements Ability to operate drives locally using function keys

Ability to do programming

Graphics display including alarms and operatorguidance messages

10.00.0 Furniture for control areas as defined below shall be provided:

Sl no Area Item Description Qty

1. Auxiliary Boiler building (ifapplicable)

a.Chair

b.Keypad, Locker set

3

1 each

2. Mill reject Control Room a.Chair


3

1 each

3. Fuel Oil pump housecontrol room

a.Chair


c.Computer table

3

1 each

1 no. to accommodate2 OWS

11.00.0 For other equipment/system/items like Measuring Instruments, Control Valves and Actuators,Other SG C&I systems, PADO system and Instrumentation and Power supply cables,contract quantities shall be governed by corresponding Sub-sections in Part-B.

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Annexure-1 to Appendix-1HMI Quantities

Sl no Item name Unit DDCMIS BASED Remarks

Unit DDCMIS FOPH Auxiliaryboiler (ifapplicable)

1 ControlSystem

Qty/unit Common qty Common qty

1.1 Functionalgroups

Nos. On as requiredbasis, minimumnumber as perdrg no. 0000-101/102-POI-A-009

On asrequiredbasis

On as requiredbasis s per drgno. 0000-101/102-POI-A-009

1.2 ControlCabinets forhousing Control

systemhardware

Nos. on as requiredbasis

on asrequiredbasis

on as requiredbasis

1.3 ControlCabinets forhousingRemote I/Ohardware(whereverspecified /applicable)


on asrequiredbasis

on as requiredbasis

1.4 MarshallingCabinets, ,Terminationcabinets, Relay

Cabinets


on asrequiredbasis

on as requiredbasis

1.5 Relays Nos. on as requiredbasis

on asrequiredbasis

on as requiredbasis

1.6 Cubicles formountingnetworkcomponents &power supplydistributionequipment.


on asrequiredbasis

on as requiredbasis

2 HumanMachine

Interface

2.1 RedundantServers (Onlyfor Alternative1)

Sets 1 1 1 1 set is twonos.serversminimum.

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2.2 Operator WorkStations

Nos. 1 in CCR, 1 inCER

2* 2* * Thefunction ofOWS canbeimplemented in theserver itselfforAlternate 1

2.3 Programmingstation

Nos. 1 in CER, Onein ProgrammerRoom

If systemdocumentation facitliyis not partof thisstation,separateworkstations shall beprovidedfor thesame.

2.4 InformationWork Stations(only forAlternative 2)

Nos. 2 1* 1* * Thefunction ofInformationWokstations can bemergedwith eachof theOWS .

2.5 Large VideoScreens(LVS)

Nos. NIL NIL NIL

2.6 Work Stationfor LVS

Nos. 3 NIL NIL Includingthat forflamecamera.

2.7 Suitableredundantinterfaces andredundant linksfor connectivitybetween UnitLAN,stationwideLAN, andDDCMIS sub

systems, unit /station PLCs,PC stations,PADO, RemoteService Centreas applicable .

sets 1 1 1 Each setwill includecomponents forrespectiveremote I/O& FGs.

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2.8 Control SystemProgrammingdeviceincludingEPROMWriter/eraseretc. (ifapplicable.)

Nos. 2 1 1 This item isnotrequired incase notapplicable.

2.9 DataCommunicationSystem

As requiredbasis

As requiredbasis

As requiredbasis

2.1 RemoteService centrehardware

As requiredbasis

2.11 GraphicalInterfaceUnit(10")

Nos 2 nos per unitfor localoperation of MillRejectsystem(unitisedpart)

1 no in FuelOil Unloadingstation forlocaloperation

Technicalspecification of GIUshall be asdetailed inmainportion ofAppendix-I.

3 Printers

3.1 Color LaserPrinter (A3size)

nos 1 for eachprogrammer/programmercumdocumentationstn

3.2 Laser jet colourprinter (A4 size)

1 1 1

4 Software

Software forDDCMISmeetingrequirementsspecified underitem SYSTEMSOFTWAREREQUIREMENTS, subsectionDDCMIS, PartB, Section VI oftechnical

specifications

As requiredbasis

As requiredbasis

As requiredbasis

pg 2 NTPC REQ

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