Fichtner I & C

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FICHTNER Consulting Engineers ( India ) Private Limited Subject Doc. No. Rev. Section 4.0 Sheet No. HJI Prop. GMMCO LIMITED TECHNICAL SPECIFICATION FOR STEAM TURBINE GENERATOR & AUXILIARIES 2630720001-ME-SPC-120-001 R0 1 2630720001-STG-S4-R0 MAG / C & I 24-09-2007 FORMT9-P REV-B (MUM) SECTION - 4.0 DETAILED SPECIFICATIONS CONTROL AND INSTRUMENTATION

description

I&C

Transcript of Fichtner I & C

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FICHTNER Consulting Engineers ( India ) Private Limited

Subject Doc. No. Rev. Section

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HJI Prop. GMMCO LIMITED

TECHNICAL SPECIFICATION FOR

STEAM TURBINE GENERATOR & AUXILIARIES 2630720001-ME-SPC-120-001 R0

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SECTION - 4.0

DETAILED SPECIFICATIONS

CONTROL AND INSTRUMENTATION

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TECHNICAL SPECIFICATION FOR

STEAM TURBINE GENERATOR & AUXILIARIES 2630720001-ME-SPC-120-001 R0

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SECTION - 4.0

DETAILED SPECIFICATIONS

CONTROL AND INSTRUMENTATION

CONTENTS

SUB-SECTION NO. DESCRIPTION SHEET NO. SUB-SECTION – 4.1 CODES AND STANDARDS 3 SUB-SECTION – 4.2 GENERAL INSTRUMENTATION REQUIREMENTS 6 SUB-SECTION – 4.3 OPERATION AND CONTROL PHILOSOPHY 8 SUB-SECTION – 4.4 STANDARD TECHNICAL REQUIREMENTS 11 SUB-SECTION – 4.5 DRAWINGS / DOCUMENTS TO BE SUBMITTED 16 SUB-SECTION – 4.6 SPECIFICATION DATASHEETS 17 SUB-SECTION – 4.7 APPROVED VENDOR LIST 21

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TECHNICAL SPECIFICATION FOR

STEAM TURBINE GENERATOR & AUXILIARIES 2630720001-ME-SPC-120-001 R0

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SUB-SECTION 4.1

CODES AND STANDARDS 1.0.0 CODES AND STANDARDS The design, manufacture, inspection, testing and installation of all equipment and

systems covered under this section shall conform to the latest editions of codes and standards mentioned below :

1.1.1 Temperature Measurement i) Instrument and apparatus for temperature measurement - ASME PTC 19.3

(1974). ii) Temperature measurement - Thermocouples ANSI - MC 96.1 - 1982. iii) Temperature measurement - Guide to electrical resistance thermometry

IS-2806. (1992) iv) Industrial Platinum resistance thermometer - IS : 2848 (1986). v) RTD Design code - DIN EN 60751:1996, BS EN 60751:1996 1.1.2 Pressure Measurement i) Instrument and apparatus for pressure measurement - ASME PTC 19.5

(1987). ii) Bourdon tube pressure and vacuum gauges IS : 3624 (1987). 1.1.3 Flow Measurement i) Instrument and apparatus for flow measurement - ASME PTC 19.5 (2004).

Interim Supplement, part-II. ii) Measurement of fluid flow in closed conduits BS :1042 (1987) iii) Measurement of fluid flow by means of pressure differential devices ISO

5167-1: 2003 1.1.4 Instrument Switches and Contacts i) Contact rating - AC services NEMA ICS-2 2000 (with revision through May

1983) Part-2-125, A6000. ii) Contact rating - DC services NEMA ICS-2 1978 Part-2-125, A600. 1.1.5 Enclosures i) Types of Enclosures - NEMA Std. ICS-6-1993 (with rev.1-4/80) through

110.22 (Type 4 to 13) ii) Racks, panels and associated equipment - EIA : RS-310-C (R1983), (ANSI

C 83.9 - 1972). iii) Protection class for enclosures, cabinets control panel & desks IS : 2147 -

1962 / IS : 13947 Part - I (1993). 1.1.6 Apparatus, Enclosures and Installation Practices in Hazardous Area

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i) Classification of hazardous area - NFPA 70-1984 Article 300. ii) Electrical Instruments in hazardous dust locations - ISA - 512.11 (1973). iii) Intrinsically safe apparatus - NFPA 493-1978. iv) Purged and pressurised enclosure for electrical equipment in hazardous

location - NFPA 496-1982. v) Enclosures for instruments - IS : 2148 (1981) reaffirmed 1993. 1.1.7 Sampling System i) Stainless steel material of tubing for sampling system - ASTM A 269 - 82

Grade 7 P 316. ii) Submerged helical coil heat exchangers for sample coolers ASTM D-

1192-1964. iii) Water and steam in power cycle - ASME PTC 19.11. iv) Standard methods of sampling system - ASTM D 1066-69. v) Solvent tolerance of Amine Resins ASTM D 1192-70-1984. 1.1.8 Annunciators i) Specifications and guides for the use of general purpose annuciators - ISA

S19.1, 1979. ii) Surge withstand capability tests - ANSI C 37.90 a-1974 and IEEE Std.

472-1974. iii) Annunciation sequence : ISA S 18.1 (1985) 1.1.9 Control Valves i) Flow equations for sizing control valves - ISA S 75.01.01 (2002) ii) Valves - flanged and threaded and welding end : ANSI B 16.34(2004) iii) Casting : ASTM A 216 / A 351(2004) iv) Welded end connection : As per ASME boiler and pressure vessel

code/ANSI B 16.34(2004), B 16.25(2003), B 16.11(2005).

v) Forging : ASTM A 105 / A 182 vi) Defect removal : ANSI B 16.34 2004 vii) Cleaning : ASTM A 380 2006 viii) CV test : As per ISA procedure S 75.02 (1996). 1.1.10 Instrument Tubing i) Dimensions of fittings - ANSI B-16.112005. ii) Code for pressure piping, welding hydrostatic testing - ANSI B 3.11(2004) 1.1.11 Cables

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TECHNICAL SPECIFICATION FOR

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i) Cable : IS 1554 Part-II (1988) ii) Insulation : IS 5831 (1984) iii) Sheathing : IS 5831 (1984) iv) Armouring : IS 3975 Part-I (1988) Reaffirmed 1992. v) Fire retardant test : IEC 332 Part - III category A vi) Test oxygen index test : ASTM D 2863 - 2006. vii) Colour coding : IS 1554 (1988) viii) Thermocouple extension cables : As per ISA standard. ISA MC 96.1-1982 1.1.12 Cable Trays and Conduits i) Guide for the design and installation of cable systems in power generating

station (Cable trays, support systems conduits) IEEE Std. 422-1977, NEMA VE-1, 2002 NFPA 70-2005.

ii) Repeat Test Standards. NEMA VE-1 2002. iii) Zinc coating ‘hot dip’ on assembled products (for Galvanizing of Carbon Steel

cable trays) - ASTM A123/A123M:2002. 1.1.13 Surge protection i)IEEE - 472 (1974) ii) IEEE C37.90.1 2002 1.1.14 Instrument end connections i) Threaded : NPT ANSI B 1.20.1 1983 ii) Flanged : ANSI ANSI B 16.5 2003 iii) Cable entry in JBs and instruments : NPT ANSI B 1.20.1 1.1.15 Where : i) IEEE - Institute of Electrical and Electronics Engineers. ii) ISA - Instrument Society of America iii) NEMA - National Electrical Manufacturers Association iv) ANSI - American National Standards Institute v) NFPA - National Fire Protection Association vi) ASME - American Society of Mechanical Engineers vii) IS - Indian Standards viii) IEC - International Electrotechnical Commission ix) ASTM - American Society for Testing Materials x) EIA - Electronic Industries Association xi) DIN - Deutsche Institute Normale

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TECHNICAL SPECIFICATION FOR

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SUB-SECTION - 4.2

GENERAL INSTRUMENTATION REQUIREMENTS 1.0.0 All instruments shown in the piping & instrument diagram shall be supplied as

minimum and comply with applicable requirements set forth in this specifications. 2.0.0 The instrumentation shall be complete in every respect and sufficient to ensure safe,

efficient, reliable and easy start up, operation and shutdown of the plant. 3.0.0 Instruments shall be designed and installed in general accordance with ISA / IEC /

NEC / API codes and as per standard engineering practices. Material specification shall be in accordance with ASTM or equivalent standard. All standards and codes of practices shall be of latest version. Vendor shall refer relevant section for applicable codes and standards.

4.0.0 The vendor shall prepare and submit the appropriate instrument data sheets for all

instruments and control system to be furnished. General Technical Specifications attached are the minimum requirement of the Purchaser.

5.0.0 All instruments shall be suitable for use in hot, humid and tropical industrial climate.

Instruments and enclosures shall be provided with anti-corrosive protection and shall be dust proof and weather proof to IP 65 as per IS 13947 as minimum suitable for use in outdoor areas without any ingress of fumes, dampness, insects and vermin. Indoors panels shall have enclosure protection not less than IP 20.

6.0.0 All instruments shall be identified with a permanently affixed stainless steel tags.

Wired tags are not acceptable. Control valves shall have instrument number painted on the actuator.

7.0.0 Instrument material specification shall be consistent with the operating parameters like

temperature, pressure, corrosion and other process conditions. 8.0.0 All instruments coming under the purview of IBR shall be certified by IBR or

equivalent. 9.0.0 All instrument mounted on pulsating service shall have pulsating dampers. 10.0.0 All process switches shall have 2 nos. SPDT type with a 1 NO + 1 NC terminated.

Contact rating shall be 110V AC, 5 A. 11.0.0 All pressure relief devices shall be designed in accordance with ASME codes for

boiler and pressure vessels and sized as per API 520. 12.0.0 All control logic and annunciation shall be designed for fail safe operation using

normally closed (NC) contacts which opens upon fault condition. Annunciators shall be provided (Audio and Visual) to indicate alarm conditions. Annunciators shall use NC contacts and indicates alarm conditions upon opening of the contact. All interlock logic diagrams shall be done as per ISA.

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13.0.0 Trip circuits shall have following requirements a. Measurement and trip devices will be separate. b. All trips shall have an alarm to indicate trip condition and all trips shall be

preceded by warning alarms. c. Adequate trip bypass facilities to be provided and warning light to indicate trip

has been bypassed. d. All solenoid valves and relays shall be normally in energised condition. 14.0.0 Vendor shall submit written description and logic scheme during engineering. Vendor

shall also refer relevant section for documents to be submitted. 15.0.0 All pressure instruments shall be provided with root isolation valves and instrument

isolation valves of proper rating. 16.0.0 Wiring, termination, ferruling and glanding shall be as per CONSULTANT /

PURCHASER’S requirement. Vendor shall refer write-up on standard wiring, termination and ferruling for requirement.

17.0.0 All instruments shall have end connections as specified in standard requirement. Any

deviation from this requires specific approval from Consultant / Purchaser. 18.0.0 All instruments shall be designed to operate at 110V AC, I Ø, 50 Hz supply. Vendor

shall refer relevant section for instrument electric and pneumatic supply. 19.0.0 All instruments shall be tagged in accordance with PURCHASER / CONSULTANT

STANDARD tagging procedure. Tagging procedure will be given at later date. 20.0.0 All transmitters shall be 2 wire type with power supply of 24 V DC from receiver

instruments. Where 4 wire transmitters are to be used, power supply shall be 110 V AC. Powering of such four (4) wire transmitters is included in the bidder’s scope.

21.0.0 All fittings, impulse tubing shall be SS 316 as minimum. No carbon steel and MS

fittings and tubes shall be used. 22.0.0 All analog signals (transmitters) shall use 1.0 mm2 cable, digital signals (switches)

shall use 1.5 mm2 cable and power signals (solenoid valves, relay signals etc.) shall use 2.5 mm2 cable.

23.0.0 Separate junction boxes shall be provided for analog, digital, power (sov. & relay),

thermocouple and RTD signals. 24.0.0 Temperature transmitter shall be used for all closed loop system. Temperature

elements shall be directly wired to DCS for information system signals. 25.0.0 All control valves shall have position transmitters.

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TECHNICAL SPECIFICATION FOR

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SUBSECTION - 4.3

OPERATION AND CONTROL PHILOSOPHY

1.0.0 INSTRUMENTATION AND CONTROL SYSTEM 1.1.0 General Following I&C system shall be provided per turbine unless otherwise noted. The Instrumentation and Control System envisages centralized control of turbine

generator units and auxiliaries from a central control room. Instrumentation and controls for the turbine generator units and auxiliaries shall be based on remote control and monitoring from DCS provided by Purchaser. Instrumentation & control for steam turbine generators shall be as per IS 14025 (Part – I) & IEC Pub 45-1. Governer systems, turbo super visory system (with RS 485 link), local panel systems. Adjacent to machine and lube oil purification system shall be provided.

1.2.0 Design Philosophy The Instrumentation and Control System shall be designed to minimize the number of

local operators and to provide for remote monitoring and control as far as practicable. The instrumentation and control system shall broadly comprise of : - Instruments mounted locally on or near machine/ equipment and piping. - Instruments mounted on local panel adjacent to the machine / equipment. - Electro Hydraulic Turbine control system. - Turbine Supervisory Instrumentation. - Turbine Supervision, Protection. - Protection and Interlocking System for the turbine, generator and auxiliaries. - Instrumentation for lube oil purification system complete with all controls, panels

and interconnecting cables. - Instrumentation & control for the generator cooling system. - Instrumentation & control for the turbine lube oil & control oil system. - Instrumentation & control for condenser system. - Instrumentation & control for Deaerator system, LP heater, HP Heater systems. - Instrumentation & control for boiler feed pumps. 1.3.0 Electro Hydraulic Turbine Control (EHTC) System Electro hydraulic type governing system is envisaged for the turbine generator units.

The electronic part of the system shall be used for signal acquisition and processing and the hydraulic part shall provide the necessary large positioning forces with required a degree of accuracy and fast response.

The system shall provide for the following control and interlock functions as a

minimum requirement : - Speed signal acquisition and monitoring - Speed reference

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- Speed control - Over speed protection - Biasing circuit for governing control valves - Indication for critical parameters

- Status indications - Position feed back transmitter (4-20 mA, 2 wire)

The governor system shall be capable of accepting set point from DCS. All control &

protection signal shall be hard wired to DCS. The governor system shall however communicate with the main plant DCS through RS-485 communication link.

1.4.0 Turbine supervision & protection The Turbine control shall have the following functions - Turbo-Supervisory System - Turbine Protection & Interlocking System The above functions shall be incorporated in a reliable microprocessor based system. All control & protection signal shall be hard wired to DCS. 1.4.1 The TSI system shall communicate with main plant DCS through RS-485

communication link. 1.5.0 Protection and Interlocking system 1.5.1 The turbo generator set shall be protected from overload and damage within the

complete operating range. The system supplied shall be capable of interfacing with the DCS for information interchange through ethernet links and hardwired signals for control & monitoring purpose.

1.5.2 Independent initiating devices shall be provided for all the signals required to

implement the requisite logics. This shall include the following as a minimum requirement

- Turbine overspeed - Very high axial displacement - Very high shaft vibration - Very low lubricating oil pressure - Very low control oil pressure - Bearing metal temperature very high - Inlet steam pressure very high - Generator protection operated - Emergency hand lever trip - Remote push button trip - Trip Oil pressure very low. 1.6.0 Turbine Supervisory Instrumentation

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The turbine generator units shall be provided with the following supervisory

instrumentation. - Bearing metal temperature monitors for turbine, generator, gearbox & exciter. - Turbine speed monitor. - Bearing housing vibration monitor. - Shaft vibration monitors - Axial shift monitors - Turbine casing differential expansion monitor - Turbine casing overall differential expansion monitor The system shall be complete with non-contact type pickups, proximeters, analog

monitors and isolated 4-20 mA output signals for the DCS. The analog monitors shall be complete with high and very high alarm and trip indications and relay outputs for the same. The necessary junction boxes and signal cables between the proximeters and analog monitors shall also be supplied by the Supplier.

1.7.0 Instruments for Lube Oil Purification System All necessary instruments and controls including panels for the lube oil purification

system shall be supplied by the Supplier.

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TECHNICAL SPECIFICATION FOR

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SUB-SECTION – 4.4

STANDARD TECHNICAL REQUIREMENTS

TABLE – 1

1.0.0 STANDARD END CONNECTION DETAILS SL.NO INSTRUMENT VESSEL / PIPE CONN. ROOT VALVE INSTRUMENT REMARKS

SIZE & TYPE QTY. CONNECTION CONNECTION 1.0 External chamber displacer type level transmitter / switch 1" FLGD 2 NOS. 1" FLGD 1" FLGD 2.0 Top Internal displacer type level transmitter / switch 3" FLGD 1 NO. N.A 3" FLGD 3.0 External chamber ball float operated type level 1" FLGD 2 NOS. 1" FLGD 1" FLGD

transmitter / switch 4.0 External Chamber displacer or ball float operated level 1" FLGD 2 NOS. 1" FLGD 1" FLGD

transmitter / switch on stand pipe 5.0 Top internal ball float operated level switch 3" FLGD 1 NO. N.A 3" FLGD 6.0 Side internal float operated level switch 3" FLGD 1 NO. N.A 3" FLGD 7.0 Level gauge on vessel 1" FLGD 2 NOS. 1" FLGD 1" FLGD 8.0 Level gauge on stand pipe 1" FLGD 2 NOS. 1" FLGD 1" FLGD 9.0 DP type level transmitter on vessel ½" NPT(F) 2 NOS. ½" NPT(F) ½" SCRD

10.0 Diaphragm type level transmitter on vessel side i) 3" FLGD (HP) 1 NO. N.A 3" FLGD ii) ½" FLGD (LP) 1 NO. N.A ½" SCRD

11.0 Dip tube type level transmitter 1½" FLGD 1 NO. N.A ½" FLGD DP transmitter 12.0 Float & tape type level transmitter 1½" FLGD 3 NOS. N.A 1½" FLGD 13.0 Top mounted radar type level transmitter 4" FLGD 1 NO. N.A 4" FLGD 14.0 Conductivity type level switch 2" FLGD 1 NO. N.A 2" FLGD 15.0 Automatic tank gauging system

i. Level 4" FLGD 1 NO. N.A 4" FLGD ii. Temperature 1½" FLGD 1 NO. N.A 1½" FLGD

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SL.NO INSTRUMENT VESSEL / PIPE CONN. ROOT VALVE INSTRUMENT REMARKS

SIZE & TYPE QTY. CONNECTION CONNECTION

16.0 Diaphragm type pressure transmitter on pipe (screwed) ½" FLGD 1 NO. ½" FLGD ½" SCRD

17.0 Diaphragm type pressure transmitter on pipe (flanged) ½" FLGD 1 NO. ½" FLGD ½" SCRD

18.0 Pressure transmitter / gauge / switch ½" 1 NO. ½" NPT (F) ½" NPT

19.0 Diff. pressure transmitter / gauge ½" 2 NOS. ½" NPT (F) ½" NPT

20.0 Diaphragm type pressure transmitter on vessel 3" FLGD 1 NO. 3" FLGD 3" FLGD

21.0 Thermowell 1½" FLGD 1 NO. N.A 1½" FLGD

22.0 Stand pipe dia N.A 3" FLGD N.A

23.0 pH analyser 1½" FLGD 1 NO. N.A 1½" FLGD

NOTES:

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TECHNICAL SPECIFICATION FOR

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1.1.0 INSTRUMENT ELECTRIC & PNEUMATIC SUPPLY

All Instrumentation system shall be designed for the following conditions : A. Pneumatic : 1. Instrument air supply pressure : 4.5 kg / cm2 (g) B. Electric : 1. Instrument power supply : 110 V AC ± 5% 50Hz, 1φ (UPS) 2. Electric signal : 4 - 20 mA DC 3. Stand alone panels : 110 V AC, 1φ, 50 Hz (UPS) will be provided

at one point in the panel by purchaser. Any other voltage level other than above shall be derived by the vendor from the above available supply.

4. Annunciators : 110 V AC, 1φ, 50 Hz 5. Solenoid valves : 110 V AC, 1φ, 50 Hz 6. Any other : 110 V AC, 1φ, 50 Hz Also refer enclosed annexure (Project information) for site condition. Vendor shall indicate in the offer the total power consumption (kVA rating) and total air

consumption (Nm3/hr) for the plant. 1.2.0 WIRING, TERMINATION AND FERRULING : Following specification shall be followed for wiring Instrumentation cables in MCC

Panel, Control Panel etc. : 1.2.1 Wiring : 1.2.1.1 Wiring shall be done as per general purpose classification for non hazardous areas as

defined in the NEC.

1.2.1.2 Wiring shall be neatly cabled and supported in non flammable PVC wiring race ways.

1.2.1.3 All wires shall be neatly dressed using nylon clippers.

1.2.1.4 All cables shall be flame, vermin and rodent proof

1.2.1.5 The minimum size of the standard tinned copper conductor used for internal wiring of the panel shall be as follows :

All power cables : 2.5 Sq. mm Analog signal cables : 1.0 Sq. mm Alarm cable : 0.75 Sq. mm Digital Cable : 1.5 Sq. mm

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1.2.1.6 Following colour cables shall be used for panel internal wiring : Alarm signal : Blue colour Analog signal : White colour Digital & Power signal : Red colour Power supply phase : Red colour Neutral : Black colour Shield : Green colour 1.2.2 Termination : 1.2.2.1 Terminal blocks shall be provided for external wiring.

1.2.2.2 Termination shall be made with solder less crimping type of tinned copper lugs which firmly grip the conductor and insulation.

1.2.2.3 Switch fuse terminals shall be used for power supply signal to solenoid valves.

1.2.2.4 Terminal blocks shall have laminated plastic engraved tag in white letters with black back ground fixed on each terminal block.

1.2.2.5 All terminals shall have terminal number identification strips.

1.2.2.6 Terminal blocks shall be shrouded 1100 V grade clip on type.

1.2.2.7 Following designations shall be given to each type of terminal blocks TBA - XX - Analog signal terminal block TBD - XX - Digital signal terminal block TBP - XX - Power signal terminal block TBR - XX - RTD signal terminal block TBTC - XX - Thermocouple signal terminal block

XX : Is the terminal number in each terminal block. 1.2.2.8. Under no circumstance above type of terminal blocks shall be mixed. 1.2.3 Ferruling : 1.2.3.1 Engraved identification plastic ferrule identifying terminal block number and terminal

number shall be fitted at both ends of the each wire.

1.2.3.2 Ferrules shall fit tightly on the wires and shall not fall off when the wire is disconnected from terminal blocks.

1.2.3.3 The philosophy of cross + direct ferruling shall be followed for all internal wiring in Control Panel, MCC, Junction Boxes etc.

1.3.0 UNITS AND RANGES 1.3.1 Units 1.3.1.1 Flow :

- Gas : Nm3 / hr - Steam : kg / hr (for higher ranges tons/hr) - Liquid : kg / hr 1.3.1.2 Pressure : kg / cm2 (g) for high pressure

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MMWC for low pressure 1.3.1.3 Vacuum : kg / cm2 (A)

1.3.1.4 Temperature : Degree centigrade (0C) 1.3.1.5 Level : - Transmitters : MMWC - Receivers : Percentage 1.3.2 Ranges : 1.3.2.1 Pressure gauges (kg/cm2 (g)) (0 - 1) (0 - 25)

(0 - 1.6) (0 - 40)

(0 - 2.5) (0 - 60)

(0 - 4.0) (0 - 100)

(0 - 6.0)

(0 - 10.0)

1.3.2.2 Vacuum gauges (kg/cm2 (a)) (-1 to 0) 1.3.2.3 Temperature gauges °C (0 - 60)

(0 - 100)

(0 - 250)

(0 - 600)

(0 -1000)

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TECHNICAL SPECIFICATION FOR

STEAM TURBINE GENERATOR & AUXILIARIES 2630720001-ME-SPC-120-001 R0

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SUB-SECTION - 4.5

DRAWINGS / DOCUMENTS TO BE SUBMITTED 1.1.0 Following documents shall be submitted by the bidder along with the offer for the

review and evaluation of the offer. - P & I diagram - Legend sheets - List of interlocks & trip parameters. - Brief write-up for operation & control philosophy. - Brief description of I&C system. - Deviation from the specifications. - List of mandatory and recommended spares. - Master Instrument list with make and models proposed. 1.2.0 Following documents and drawings shall be submitted by bidder at detail engineering

stage for approval by CONSULTANT / PURCHASER. 1.2.1 Master Instrument Index. 1.2.2 Instrument data sheets. 1.2.3 Panel drawings and engineering documents. 1.2.4 Junction box, cable tray layout drawings schedule, cable schedule and

interconnection schedule. 1.2.5 Loop schematics & logic diagrams. 1.2.6 Installation drawings. 1.2.7 Erection & commissioning manuals 1.2.8 Necessary documentation & details required by DCS vendor for interface purpose. 1.3.0 Entire engineering shall be done as per CONSULTANT’S standard engineering

drawings. Blanks copies of the format will be given to successful bidder later.

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TECHNICAL SPECIFICATION FOR

STEAM TURBINE GENERATOR & AUXILIARIES 2630720001-ME-SPC-120-001 R0

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SPECIFICATION DATASHEETS

1.0.0 TRANSMITTERS : GENERAL Type : Smart Power Supply : 24 V DC from receiver instrument Output : 4-20 mA DC Load resistance : 600 ohms minimum Protection class : IP 65 Accuracy : ± 0.1% Cable Entry : ½” NPT 2.0.0 SWITCHES / CONTACTS : GENERAL Type : Microswitch with autoreset, Contact type & rating : 2 Nos. SPDT, 110 V , AC 5 Amp Contact terminals : 1 NO + 1 NC terminated 3.0.0 ANNUNCIATORS Type : Solid State electronics Architecture : Integral No. of Channels /cord : One Alarm sequence : F3R 4.0.0 PRESSURE SWITCHES Type : Blind Pressure sensing : Direct process Pressure element material : SS Wetted parts : As per process requirement 5.0.0 CABLE Conductor : Tinned copper, multistrand armoured Voltage grade : 1100 V Insulation & sheathing : PVC extruded as per IS 5831,FRLS Cable shielding : i. Individual and overall shielding for analog and

compensating cable. ii.Overall shielding for digital cable. Twists per meter : Minimum 10 Core identification : By number, every 250 mm interval printed on aluminium

mylar sheet in alpha numeric. Pairs : IP, 8 P Cores : 2C, 16C Triad : 1T, 6T Thermocouple : 1P, 8P

Cable sizes

Analog signals : 1.0 mm2

Digital signals : 1.5 mm2

Power signals : 2.5 mm2

Alarm cable : 0.75 mm2

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TECHNICAL SPECIFICATION FOR

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6.0.0 ON / OFF VALVES Style : Ball / Globe / Butterfly Size : As Per Sizing Calculation Port : Full port Body Material : CS Trim Material : SS Actuator : Pneumatic Solenoid valves : SS material, single coil, 110 V AC, 1 /2 “ NPT(F) cable entry. Limit switches : Required for open / close position (1 NO SPDT) Cable entry : 1 /2 “ NPT(F) common cable entry for both

open & close limit switches. Leakage Class : Class VI 7.0.0 SAFETY RELIEF VALVE Type : Conventional Bonnet : Open Overpressure : 10% Body / bonnet : C.S Trim : S.S Lift indicator/test gag : required 8.0.0 RECEIVER INDICATORS Type : Microprocessor based Mounting : Flush panel Indication : Dual channel bar graph Range : Field selectable Alarm contact : Required (potential free) Powering of field transmitters : Required 9.0.0 PRESSURE GAUGES AND DIFF. PRESSURE GAUGES Type of element : Bourdon Dial size : 150 mm Pointer : Micrometer type Drain plug and blowout disc : Required Pressure element and movement material : SS 316 Accuracy : ± 1% of span Accessories : Snubber, syphon, chemical seal as required. 10.0.0 TEMPERATURE GAUGES Thermal system : Mercury in Steel. Type : Every angle Dial size : 150 mm Accuracy : ± 1% of span Ambient temp. compensation : Required Thermowell : Required (tapered bar stock, SS 316 material). Capillary length : N.A.

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TECHNICAL SPECIFICATION FOR

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11.0.0 TEMPERATURE ELEMENT (RTD / THERMOCOUPLE) Type : 3 wire (RTD) / 2 wire (Thermocouple) Configuration : Duplex Response time : 3 - 5 sec (for RTD)

Thermowell : Required tapered bar stock (SS 316 material), flanged upto 600 # and M33 x 2 for 900 # and above.

Nipple union nipples : Required Element material : Platinium, 100 ohm at 00C / Thermocouple as per temperature. 12.0.0 CONTROL PANEL Type : Simplex, free standing vertical Type of enclosure : IP 42 (IP 20 for central control room mounted panels) Panel material : CRCA sheet steel Thickness : 3 mm for front & sides 2 mm for top and doors Antivibration pad and kick plate : Required Cable entry : Bottom Panel / door : Back Paint color : External - LATER Internal - Luminous white. 13.0.0 LEVEL GAUGE Type : Tubular / reflex Ball check : Required offset Vent and drain plug : Required Glass material : Borosilicate Connection style : Side and side 14.0.0 TEMPERATURE SWITCH Thermal system : Vapour filled Accuracy : ± 1% of span Switch setting : Adjustable Bulb capillary, pressure element and thermowell material : SS 316 15.0.0 CONTROL VALVE Type : Globe, modulating linear / Equal % Leakage class : Class IV Body material : To match piping material spec. Trim material : SS 316 as minimum, stellited for steam services End connection : RF, flanged Actuator : Diaphragm / piston (pneumatic) Positioner : Electropneumatic (Input - 4 20mA & output to actuator). Position transmitter : Required for all valves Noise : 85 dBA at 1.5 mtr from valve max. 16.0.0 FLOW ELEMENTS : Orfice plates upto 300 # lines & nozzle for 600 # lines & above. Design code : BS 1042 / ISO 5167 Material : SS 316 Mounting on pipe line : Weld neck flange for Orfice and slip on flange for nozzle.

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TECHNICAL SPECIFICATION FOR

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18.0.0 RECORDER Type : Microprocessor based No. of pens : Three independant pens Chart speed : Adjustable 19.0.0 INSTRUMENT HARDWARES Nipple, union : 3000 #, SS 316 Cable gland : Nickel plated brass, double compression type weather proof. Copper tube : 1/4” OP PVC coated Connectors : Brass with copper ferrule Instrument isolation : SS ½” NPT (F), 300 # valve for process Other fittings : SS 316 Impulse tubing : SS 316, ½” OD, 0.065” thick, RB = 80 Instrument support : 2” NB, SCH 40, 1.5 mtr long with base Perforated trays : GI LxWx50(H) (length, width as required) Instrument junction box : Die cast Aluminium, LM-6 GI wire : 8 swg (for JB earthing) Structural steel : MS Instrument air manifold : 40 NB, Sch 40, GI Instrument air line : Sch 40, GI pipe upto manifold Instrument air fittings : GI, 3000 # (Tees, Elbows etc.) Syphon : ½” NPT (MxF), SS 316 Aluminium strip : 1” width x 2 mm thick Inst. air manifold : Brass isolation / drain valve

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FICHTNER Consulting Engineers ( India ) Private Limited

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HJI Prop. GMMCO LIMITED

TECHNICAL SPECIFICATION FOR

STEAM TURBINE GENERATOR & AUXILIARIES 2630720001-ME-SPC-120-001 R0

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APPROVED VENDOR LIST

1. PLC : Allen Bradley GE Fanuc (90:70) Siemens ABB

L&T

2. Control Valves : Instrumentation Limited,

Dresser / Masoneilan

Fisher Xomox 3. ON/OFF Valves : EL - O - MATIC (Ball, butterfly) Valtek, Ahmedabad 4. Electronic : Emerson, Honeywell, transmitters Yokogawa, ABB, SIEMENS,E+H 5. RTD and : General Instruments thermocouple Pyroelectric Waree Altop Instruments 6. I/P Convertors : Emerson, Bells, Moore,ABB 7. Pressure gauge : Bells Odin General Instruments 8. Temperature gauges : Bells General Instruments,Waree 9. Diff. Pressure gauge : Switzer Prestige counting instrument 10. Level switches : Chemtrol Levcon Bliss Anand 11. Remote water level : Yarway indicator Chemtrol 12. Flow orifice/nozzle : Baliga Hydropneumatic ,Microprecision

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TECHNICAL SPECIFICATION FOR

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13. Level gauge : Chemtrol Levcon Bliss Anand 14. Panels : RITTAL PYROTECH Industrial control and appliances Industrial switchgear and controls 15. Annuciations : IIC ICA 16. Solenoid valves : Asco Rotex 17. Air filter regulator : Placka Sharo Norgren 18. Control switches, PBS: L&T 19. Indicating lamps : Siemens TEKNEC 20. Relays : OEN, Siemens, Omron

21. Selector switch : Kaycee L&T 22. Pressure switches : Switzer Verma Trafag 23. Limit value monitor : YBL signal repeator MTL 24. Switches (Limit : Honeywell switches, proximity P&F switches) 25. Recorders : YBL Leeds and Northrup 26. MCB : L&T Siemens 27. Junction boxes : Baliga Ex-protecta

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TECHNICAL SPECIFICATION FOR

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28. Air header & other : Excelsior fittings Excel hydropneumatic Champ 29. Terminal blocks : Connectwell,PHOENIX Elmex 30. Temp. transmitters : Bells Emerson, ABB,YIL 31. Condensate Pot : Microprecision Industrial Auxiliaries Note : For any instruments / items for which vendor list is not available. Bidder shall refer the

matter to the CONSULTANT.