ENABLING POWER SOLUTIONS... EMPOWERED TO DO MORE...

Transcription

1 ENABLING POWER SOLUTIONS... EMPOWERED TO DO MORE...

2 Terra is professionally managed by a team of young aspiring engineers in power business committed to provide a wide range of products & services to customers for their power plant needs. The company is focussed on quality, committed delivery and cost effective solutions, which are the drivers for good reach and acceptance in a short time. Terra philosophy stands for the customer focused approach in providing the complete service & solutions in order to achieve higher levels of efficiency. We enjoy our work and we enjoy our customer accomplishments, but ultimately it is relationships that we build along the way that brings the greatest satisfaction and ensures continued success.

3 Vision, Mission & Quality Policy Vision To become a global leader and desirable partner for providing sustainable services and solutions to customers in Power segments. Mission Extending our capabilities in manufacture, supply & services for the Power Plant needs in Domestic and Overseas market. We target to be One of the leading Global players in providing specialised Power solutions. Quality Policy We, Terra strongly believe in customer satisfaction at every stage through highest quality, service and affordable pricing to customer, which is achieved by active participation from every individual in the company. We consistently update the technological development and take full responsibility for customer needs. We also believe in continual improvement and quality is our way of growth.

4 About the Company... Area of core Competency» Manufacturing of Steam Turbines from 50 KW to 3000 KW.» Turbine repairs, steam path study and efficiency restoration.» Reverse engineering.» Spares manufacturing.» Short & Long term Service agreements.» Electrical & Automation solutions.» Retrofit & Modernization of Steam Turbines & Generators.» Total Electrical EPC Concept to Commissioning.» Overhauling, Erection & Commissioning.» Power Plant Operation & Maintenance.» Manufacturing of Hydraulic systems for Turbine & Power Plants.» Re-location of Power Plants.» Overseas Projects and Services.» Boiler spares supply and service.» Manufacturing and Retrofit of High speed Gear Box.» Engineering & Consultancy service for Power Plant.

5 Governor retrofit & Modernization Electrical panels Design & Manufacturing Complete R&M solutions

6 Governor Retrofit & Turbo supervisory Systems Governor Retrofit & Turbovisory Retrofit

7 Capabilities on Retrofit & Modernization Electronic Governor retrofit for steam turbines of all make and all type Turbo supervisory systems Vibration monitoring, Electronic over speed protection, turbine process control & monitoring etc. Technical study and supply of field instruments for TG set and auxiliary systems. Plant up gradation by providing PLC/DCS based automation system for TG set and power plant. Electrical Power & Control panels for TG set and complete power plant. Conversion of Generator Excitation into Static system. Up gradation of Protection system for Generator, Transformer & Feeders. Plant load management system.

8 Credentials of TERRA Competency Products Experience Innovations Superior than OEM Experience of R&M up to 120 MW Woodward ABB Voith Developed special Hydraulic products in retrofit area In house design

9 Advantages of R&M with TERRA Turbine Experience Products Handling Criteria TERRA Other OEM Research & Study in Governing systems Compatibility Retrofit Projects Overall Service Support Being service provider, rich experience in all make and all type of turbines Good experience & knowledge in optimising the right products Experience in various Turbine governing systems Carried out several Tailor made modifications to suit specific case Core area of Business and executed many challenging R&M projects Capable to support on Woodward products, turbine spares & all type of services Limited to OEM products only Limitation in handling wide range of products Limited to OEM own product & system only No experience in modifications Lack of challenging R&M projects, as it is not their core competency Limitation in overall support

10 Retrofit with Electronic Governing System Any make and capacity... In House Design... Rich Experience MW HITACHI 6 MW ENGLISH ELECTRIC 120 MW SKODA 12.5 MW SIEMENS

11 Governing Hydraulic Systems Supply and install Governing Hydraulic systems. Study and understand the requirement. Customized solution for various make and type of Turbines. Redundant CPC Options. 2/3 Trip Block Options. High level Automation.

12 Turbo Supervisory Systems Terra supply and install Vibration system and over speed protection for steam turbines. Vibration Sensors 2 Out of 3 Trip Block Speed Sensor wheel Casing Expansion Sensor Electronic Over Speed Protection Velocity Sensor Valve position Sensor Control Panel

13 Electronic Governor Retrofit for Siemens/BHEL Turbine Project Reference - 1

14 Electronic Governor Retrofit on Siemens/BHEL Turbine VALVES SPEED SENSOR Method of Execution: Magnetic Pick up for Speed Sensing. New Hydraulic Skid with Electrical Solenoid valve in place of old skid. CPC mounted in the new skid. Turbine Control Panel with Woodward 505 Digital Governor. Interconnection of New Hydraulic skid with the Turbine. Interface wiring between Control panel and Hydraulic skid. DUPLEX FILTER 14

15 Hydraulic Scheme for Retrofit on Siemens/BHEL Turbine TYPE - 1 TYPE - 2

16 Modification of Hydraulic Skid BEFORE AFTER

17 Electronic Governor Retrofit with Actuator Replacement Project Reference - 2

18 Replacement of Servo Actuator with Varistroke Supply and installation Reasons for Replacement: Original Servo cylinder was sticking and leading to instability. No spares support from OEM. Oil leakage in the cylinder. Method of Execution: Installation of Varistroke actuator in place of old servo cylinder. Supply of Hydraulic Power pack (16 Bar) for Varistroke actuator. Interconnection between Power pack and Varistroke actuator. Mechanical connection to Turbine valve rack. Before 12 MW SKODA TURBINE 12 MW DRESSER TURBINE After with Varistroke Hydraulic Power Pack P&I Scheme

19 Retrofit for 30 MW ALSTOM-BORSIG make Turbine Project Reference - 3

20 Electronic Governor on Water Governing system Turbine History: Used Turbine Purchased from Germany. Equipped with Card based Analog panel for Governor. System was Obsolete and no spares support from OEM. Limitations in operation. Retrofit Execution: New panel with Woodward 505 Governor. Modification in Governing skid to suit application. Vibration monitoring & Electronic Over speed protection system. Mechanical Interface and Commissioning. 30 MW BORSIG TURBINE WITH WATER GOVERNING SYSTEM GOVERNING SKID GOVERNOR PANEL

21 Retrofit for 120 MW SKODA make Turbine Project Reference - 4

22 Retrofit for 120 MW SKODA make Turbine +

23 About ABB India (PGPS) About ABB India (PGPS): Power Generation & Power Services division is a part of ABB India Ltd. Located in Bangalore. The division is concentrating on Retrofit and Modernization of steam and hydro turbines. Terra Power Plant Systems is working as system house for ABB India Ltd. TERRA serves for all mechanical and hydraulic controls for all ABB retrofits.

24 About Torrent Power Ltd Major Utility Power Producer in India. Distribute 450 MW Electricity to Ahmedabad city. Generating about 3000 MW power through various power plants across the Country. 24

25 Retrofit Of 120 MW SKODA Turbine SCOPE OF SUPPLY BY TERRA: Supply of Voith make I/H Converters. Supply of Woodward make Over speed Protection system and speed sensors. Manufacturing and Supply of Redundant I/H Converter block. Manufacturing and Supply of 2 Out of 3 Logic Hydraulic trip block. Manufacturing and Supply of Acceleration valve for Over speed prevention. Manufacturing and Supply of Teeth wheel and sensor mounting brackets. Supply of Pressure Transmitters. & Switches. Supply of complete pipes and hardware. Installation, testing and commissioning. SCOPE OF SUPPLY BY ABB: Manufacturing and Supply of DCS based Governor control system (ABB). Manufacturing and Supply of Filed control panel. Supply of Speed sensors for Governor controller. Installation and commissioning. 25

26 Project Highlights The Redundant I/H converter block and 2 Out of 3 Logic Hydraulic trip block are India s first development products by Non-OEM. The complete design, development, manufacturing and supply has been achieved within 12 weeks time. All the equipments are tested for functionality at our works. Installation and commissioning has been achieved in 3 weeks time. Complete system has been proven for successful functionality. Turbine full load operation achieved on and all parameters satisfactory. 26

27 Hydraulic Scheme for Governing System 27

28 Modification BEFORE AFTER 28

29 Turbine Before After Modification BEFORE AFTER 29

30 Few Customized Products developed for Retrofit Electrical and manual operated ESV starting device for Siemens & BHEL make turbines Automatic ESV controller for Siemens & BHEL make turbines Redundant CPC / IH convertor block Trip block with 2 out of 3 logic concept Acceleration device for over speed prevention Pedestal modification for electronic governor retrofit of Kaluga and Qingdao make Turbines Servo Motor for customized Application

31 Certificate & Appreciations.

32 Overall Projects in Governor & Turbo supervisory Retrofit Sl.No Name of Customer Turbine Detail Remarks 1 Sarda Energy & Minerals Ltd, Raipur 30 MW, Siemens make Similar to BHEL make 2 Sarda Energy & Minerals Ltd, Raipur 2 x 30 MW, Borsig make Water governing system 3 Godawari Power & Ispat Ltd, Raipur 2 x 10 MW, Parsons make 4 Godawari Power & Ispat Ltd, Raipur 10 MW, Hitachi make 5 Century Pulp & Paper Ltd, Lalguan 6.8 MW, BHEL make 6 Century Rayon Ltd, Shahad 3.0 MW, BHEL make 7 Vishal Papers Ltd, Patiala 5.4 MW, AEG-Kanis make Old Siemens design 8 Bhavani Sugars Ltd, Karnataka 1.5 MW, Skoda make 9 Relience Ltd, Vadodara 12.5 MW, BHEL make 10 Parle Biscuits Pvt Ltd, Lucknow 3.0 MW, Belliss make 11 India Glycols Ltd (Shakumbari sugars, UP) 4.2 MW, PBH make 12 India Glycols Ltd (Shakumbari sugars, UP) 3.25 MW, WH Allen make 13 Atul Limited, Atul 2 x 5 MW, Triveni make 14 S.V.Sugar mills Ltd, Kanchipuram 27.3 MW, Siemens make 15 K.C.P.Sugar & Industries Ltd, Vuyyuru 12.5 MW, Siemens make 16 Biltube Industries Ltd 6 MW English Electric make 17 Gujarat Industries Power Company Ltd, Vadodara 50 MW BHEL make 18 Chembal Fertilizers Ltd, Kota 6 MW BHEL make 19 IFFCO # 1 Bareli 12 MW BHEL make 20 IFFCO # 2 Bareli 25 MW BHEL make 21 Zuari Fertilizers Ltd, GOA 12 MW Dresser make 22 Birla Copper Ltd Dahej 12 MW Skoda make 23 Tata Steels Ltd, Jamshedpur 6 MW BHEL make 24 Torrent Power Ltd, Ahmedabad 120 MW Skoda make 25 Indo Gulf Ltd, Lucknow 15 MW BHEL make 26 Nepa Ltd 8 MW BHEL make 27 Depriya Papers Ltd, Meerut 3 MW Maxwatt Turbine 28 Vishal Fabrics Pvt Ltd, Ahmedabad 3 MW Triveni make 29 Sukari Industries Ltd, Kenya 3 MW Triveni make 32

33 Retrofit of AVR & Excitation System

34 Conversion from In Built AVR to Panel mounted Panel Mounted AVR Reasons for Replacing In Built AVR: Difficult to Approach. No method for regular observation. No Alarm / Fault indication. Difficult in Troubleshooting & Maintenance. High Failure rate due to ambient condition. Advantages of Panel built AVR: Easy to Approach, flexible for location. Regular observation through meters. In Built AVR Annunciation and Audio for Alarm / Fault indications. Comfortable Troubleshooting & Maintenance. More reliable due to good ambient & maintenance. 34

35 Conversion from DC Exciter to Static Excitation System DC EXCITER SOLUTION WITH STATIC EXCITATION Generator Field Reasons for Replacing DC Exciter: Obsolete in Technology. Very difficult maintenance of carbon brush & commutator. Sluggish Response due to 2 times conversion. Thyristor Converter Surge Arrester Advantages: Avoids maintenance of Exciter. Less maintenance on Carbon brush. Improved Response of the system. 35

36 Electrical Solutions Design & Manufacturing Electrical panels LA, SC, PT Panel LT Distribution Panel Non Compartment MCC LT Distribution Panel Turbine & Generator Control Panel Turbine Load Sharing Panel

37 Retrofit of Protection Relays R&M solution for Electromagnetic Relays with Numerical Relays Reasons for Replacing Electromagnetic Relays: Obsolete in Technology. Wear and Tear due to mechanical operation. No records and trending. Difficult for Spares and services. Accommodates huge space & Increase in panel size. Advantages in Numerical Relays: Latest in Technology and Compact size. No mechanical device and no wear and tear. Lesser burden of CT and PT. Measurements, Alarm, Trip and Trend facilities. PC Connectivity & Online monitoring.

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