Training Review 2015 , and First Deputy Prime Minister

Total Page:16

File Type:pdf, Size:1020Kb

Training Review 2015 , and First Deputy Prime Minister Training Review 2015 , and First Deputy Prime Minister 3 At Alba, we consider people our most valuable resource and in today’s competitive world we must continue to push the envelope on training MESSAGE and development. We believe that it is through dedication and an enduring commitment FROM THE CEO to education that our company and employees will continue to grow and prosper for future generations. The Training and Recruitment Department plays a major role in developing the future generations of leaders at Alba. We focus on finding the right development paths for the employees and providing them the right tools for success. Through our training and development programmes we strive to improve employee capabilities and organisational competences, which in turn leads to a more productive and satisfied workforce. At Alba, we are very proud that to have achieved an 87% Bahrainisation level. Working together with our education partners, we take pride in developing the future generation of Bahraini leaders. Alba strives to ensure that we provide a unique and excellent place for our employees to work and we understand the pivotal role that we play within the Kingdom of Bahrain. Alba is in the “People Business” and the success of our people is linked directly to the bottom line. Tim Murray Chief Executive Officer 5 Total Training Hours 2012 2013 2014 2015 (as of July) COMPUTER 16 3,060 4,064 1,323 SAP 1,638 1,236 2,873 2,236 VEHICLE 92,649.6 74,800.5 38,069.6 15,670 SAFETY 15,860 26,982 22,113 13,879 MANAGEMENT 0 5,140 14,543 6,835 TECHNICAL 121,249 66,701.6 143,614 81,228 SKILL MATRIX 43,012 53,713 35,743.6 21,188 TDP 36,054.5 56,278.7 138,264 93,591 TOTAL 310,479.1 287,911.8 399,284.2 235,950 4 TRAINING Number Of Employees Trained STATISTICS 2012 2013 2014 2015 (as of July) COMPUTER 4 300 478 136 SAP 157 217 383 255 VEHICLE 1,593 1,264 980 436 SAFETY 2,872 3,707 4,736 5,416 MANAGEMENT 0 293 1,270 911 TECHNICAL 1,651 1,731 4,027 3,224 SKILL MATRIX 339 492 476 363 TDP 37 69 112 110 TOTAL 6,653 8,073 12,462 10,851 CHAPTER 1 7 EXECUTIVE AND MANAGEMENT SERIES Course Title: “Leadership” Programme based on Robert E. Lee book. Duration: 1 Day Speaker: Speakers Karyn Williams Sykes & Adnan Butt from Bahrain Institute Overview: Robert E. Lee was a leader for the ages. He was an American soldier and was known as an exceptional officer, a brilliant strategist and combat engineer in the United States Army for 32 years. The man heralded by Winston Churchill as “one of the noblest Americans who ever lived” inspired an out-manned, outgunned army to achieve greatness on the battlefield. The course highlighted the life of Robert E. Lee, which taught many important lessons and helped people triumph over challenges faced every day in business and other walks of life. Course Title: “Public Speaking” Programme for Management Duration: 2 days Speaker: Andrew Card, Simon Doyle and Davind Rendall from EMIC Institute Overview: Of all the skills employers’ desire in employees, oral communication skills rank the highest. Many surveys reveal that oral communication skills are considered even more important than writing and math skills as well as a number of other job-related qualities, such as initiative, technical competence, and organisational abilities. Focusing on oral communication can help employees gain an edge. Effective oral communication skills help people to improve their performance, enhance their subsequent professional competence and improve their own personal effectiveness. The course helped all attendees to gain an insight on oral communication and public speaking and further develop these skills. CHAPTER 1 6 EXECUTIVE AND MANAGEMENT SERIES Course Title: “Coaching & Mentoring” for Executives and Managers Duration: 1 day Speaker: John E Skladan, a well-known trainer with over 45 years’ experience of working with corporates such as Honeywell, Navistar and Arc Automotive at Leadership levels. Overview: Coaching and mentoring are often the key elements of good capacity- building practice. In the past decade, coaching and mentoring have increasingly been practised within the civil society sector, which are in line with the trend towards ongoing capacity-building processes rather than one-off events. The course addressed the topics of coaching and mentoring, which are popular capacity-building tools, especially in the area of leadership development. It gave a detailed understanding on what coaching and mentoring really involve, and where and when they work. Course Title: “LPI 360 Feedback” for all Executives and Managers Duration: 3 days Speaker: Prof. Richard Daft from Vanderbilt University Overview: Conducted in coordination with Vanderbilt University, the 360 Feedback was an objective and aggregate rating of each leader’s skills from all directions - direct reports, boss, and peers who work with that leader. The objective of this 360 feedback exercise was to aid Alba’s leaders learn how others perceive their behaviour, and help them identify their strengths and areas for improvement to build a positive culture at Alba. CHAPTER 2 9 SOFT SKILLS COURSES Course Title: Leadership and Influence - Based on Gen. Colin Powell Leadership Style Duration: 1 day Speaker: John David Sicilia & Don Lee Redinius, BIHR Training Overview: This course sought to enhance the participants’ leadership skills and performance by learning and applying proven leadership methods, principles and rules developed by Colin Powell throughout his career. It included understanding of leadership and its impact on organizational performance and highlighted current and future leaders with proven leadership principles, methods and rules. Course Title: The Six Sigma Green Belt Training Programme for Management Duration: 5 days Speaker: In-house Master Black Belt Specialist Waleed Tamimi and his team Overview: The Six Sigma methodology was selected as a base for sustainable continuous improvement. Alba has successfully implemented eight Six Sigma projects. As part of a capability building model, continuous Six Sigma training sessions were held during the year. The objectives of the courses held were to: • Reduce Operational Cost • Increase Revenue • Increase Throughput • Eliminate Waste • Minimise/Eliminate variations in processes • Improve Sustainability CHAPTER 2 8 SOFT SKILLS COURSES Course Title: Supervisory Management Development Programme for Management Duration: 5 days Speaker: EMIC Training by Simon Doyle Overview: The course aimed to develop all Alba’s supervisors and 1st line staff in supervisory management and team development areas to perform improved activities in required areas of the organisation. It also looked at ways to improve performance of supervisors through planning, resource allocation and managing time effectively, as well as building skills needed to develop efficient work relationships linked to performance management in order to meet agreed business objectives. Outline: • Building Self Esteem and Assertive Skills • Effective Communication Techniques • The Art of Delegating Effectively • Solving Simple Workplace Problems and making Routine Decisions • Building Better Teams • Conflict Resolution Techniques • Business Coaching Techniques CHAPTER 2 11 SOFT SKILLS COURSES Course Title: High Performance Leadership Training for 2nd Line Management Duration: 4 days Speaker: EMIC Training by Andrew Card and Simon Doyle Overview: The course covered vital aspects of leadership such as effective time management, planning and delegation, advanced management and leadership principles and techniques. In addition, it also involved a unique pre-assessment of leadership qualities at the beginning of the course and 3 months after. Course Title: Industrial and Employee Relationship programme Duration: 4 days Speaker: Robert Coates, a management consultant with experience in conducting programmes in UK and UAE. Overview: The objective of this programme was to provide an engaging workshop to all 1st and 2nd Line management staff in order to create a positive industrial relation and employee relation culture in Alba. Course Title: Leadership & Change Management Programme for Management Duration: 1 Day Speaker: John Skladan Overview: Change is an ongoing and important process. For a successful organisation, change management in the role of leadership is essential for the healthy growth of any business. Change is impossible without the active participation of management. The course allowed attendees to understand the aspects of change management and its importance for successfully running an organisation. CHAPTER 2 10 SOFT SKILLS COURSES Course Title: Miracle Team Building Programme for Non-Management Duration: 1 Day Speaker: Karyn Williams Sykes and Adnan Butt, BIHR Training Overview: The course aimed at creating the culture of One United Team across Alba and comprised a short movie presentation along with a number of team building activities, which promoted team work, trust, appreciation, decision making, objective and goal setting. Course Title: Workshop on “High Impact Leadership” Duration: 1 day Speaker: Shaun Harper, reputed leadership trainer of international experience Overview: The course was based on the well-known book ‘Five Temptations of a CEO’, and featured video clips on motivational quotes and on temptations of leaders; role plays where delegates were randomly selected to play characters with an objective to ensure that participants understand basic principles in the book; questions and answers; and case studies and group exercises to reinforce understanding of the 5 temptations faced by a leader. The book was also distributed to the participants. 13 TIM’S BOOK CLUB A new initiative by the Executive Management of Alba, Tim’s Book Club has been established with the sole aim of developing a reading culture in Alba. The approach behind introducing this new facility for all Alba employees is that reading is one of the most fundamental skills required to succeed in life. Through this Club, employees will have access to well-known business/management books, which will help them enhance their skills and capabilities.
Recommended publications
  • Improvement of Electromagnetic Railgun Barrel Performance and Lifetime By
    IMPROVEMENT OF ELECTROMAGNETIC RAILGUN BARREL PERFORMANCE AND LIFETIME BY METHOD OF INTERFACES AND AUGMENTED PROJECTILES A Thesis Presented to the Faculty of California Polytechnic State University San Luis Obispo In Partial Fulfillment of the Requirements for the Degree Master of Science in Aerospace Engineering by Aleksey Pavlov June 2013 c 2013 Aleksey Pavlov ALL RIGHTS RESERVED ii COMMITTEE MEMBERSHIP TITLE: Improvement of Electromagnetic Rail- gun Barrel Performance and Lifetime by Method of Interfaces and Augmented Pro- jectiles AUTHOR: Aleksey Pavlov DATE SUBMITTED: June 2013 COMMITTEE CHAIR: Kira Abercromby, Ph.D., Associate Professor, Aerospace Engineering COMMITTEE MEMBER: Eric Mehiel, Ph.D., Associate Professor, Aerospace Engineering COMMITTEE MEMBER: Vladimir Prodanov, Ph.D., Assistant Professor, Electrical Engineering COMMITTEE MEMBER: Thomas Guttierez, Ph.D., Associate Professor, Physics iii Abstract Improvement of Electromagnetic Railgun Barrel Performance and Lifetime by Method of Interfaces and Augmented Projectiles Aleksey Pavlov Several methods of increasing railgun barrel performance and lifetime are investigated. These include two different barrel-projectile interface coatings: a solid graphite coating and a liquid eutectic indium-gallium alloy coating. These coatings are characterized and their usability in a railgun application is evaluated. A new type of projectile, in which the electrical conductivity varies as a function of position in order to condition current flow, is proposed and simulated with FEA software. The graphite coating was found to measurably reduce the forces of friction inside the bore but was so thin that it did not improve contact. The added contact resistance of the graphite was measured and gauged to not be problematic on larger scale railguns. The liquid metal was found to greatly improve contact and not introduce extra resistance but its hazardous nature and tremendous cost detracted from its usability.
    [Show full text]
  • Soft Starting of Three Phase Induction Motor
    © 2017 IJRTI | Volume 2, Issue 5 | ISSN: 2456-3315 SOFT STARTING OF THREE PHASE INDUCTION MOTOR 1Mr. Satpute Akshaykumar, 2Mr. Tambe Sagar, 3Mr. Shinde Vijay, 4Prof. Mone P.P. Department of Electrical Engineering SVPM’s College of Engineering Malegaon (Bk), Tal-Baramati, Dist-Pune, Savitribai Phule Pune University. Abstract— This paper, present a soft starting of induction motor. At the time of starting three phase induction motor takes very large current and have low power factor. Due to high current, motor torque content ripples and transients. Due to transients and torque pulsation shaft of motor experiences jerk hence mechanical life of rotor reduces. In order to mitigate this adverse effect if starting current and torque pulsation in induction motor, a popular method is used which is electronically controlled soft starting of induction motor. Normally soft starters are used for avoiding this problems and soft start is achieved by increasing stator frequency. By using soft starter performance of induction motor is improved and also improved load torque characteristics. Keywords— Three phase induction motor, microcontroller, and PWM inverter. I. INTRODUCTION The ac motor starters employing power semiconductors are being increasingly used to replace electromagnetic line starters and conventional reduced-voltage starters because of their controlled soft-starting capability with limited starting current. Thyristor-based soft starters are cheap, simple, reliable, and occupy less volume, and therefore, their use is a viable solution to the induction motor (IM) starting problem. Depending on the initial switching instants of all the three phases to the supply, an IM may produce severe pulsations on the electromechanical torque, regardless of whether it is controlled by a direct-online starter or a soft starter .
    [Show full text]
  • Soft Starter User Manual Safety Clauses 1
    Soft Starter User Manual Safety Clauses 1. The general of FWI-SS Series Soft Starter 1.1 The main function 1.2 The main characteristics 2. Code explanation and Check-up before using 3. Usage conditions and Installation directions 3.1 The Usage condition 3.2 The Installation requirement 3.3 The Installation Directions 4. Connection and External terminal 4.1 The diagram connection 4.2 The external terminal 4.3 The diagram of Main circuit connection 4.4 The communication interface 5. Control panel and its operation 5.1 The operation of control panel 5.2 Parameter set and explanation 5.3 The functions of "Programmable relay output" 5.4 The function of Automatic Re-start 5.5 Directions for other set items 5.6 Help message and explanation 6. Protection Functions and directions 6.1 Protection functions and theirs parameter 6.2 Protection classes and explanation 7. Test run and application 7.1 Set up electricity to test run 7.2 Starting modes and application 7.3 Stopping modes and application 7.4 Application example 1 www.vtdrive.com Safety Clauses In the process of using the soft starter, please note the following Safety Clauses Please check this user manual carefully before using the product. Only the technical person is allowed to install the product. To be sure that the motor is correctly matched with the soft starter. It is forbid to connect capacitors to the output terminals (U V W). Please seal the terminal switch insulation glue after finishing connect them. The soft starter and its enclosures must be fixedly earthed.
    [Show full text]
  • VEIKONG S6000 Soft Starter and Panel User Manual
    User Manual Online Running Soft Starter Safety Clauses Safety Clauses Thanks for your using intelligent motor online soft starter, this product is used for three-phase squirrel cage induction motor soft starting and soft stopping control. Before using, please carefully read and understand the contents of this manual. In the process of using the soft starter, please note the following Safety Clauses: Please check this user manual carefully before using the product. Only the technical person is allowed to install the product. To be sure that the motor is correctly matched with the soft starter. It is forbid to connect capacitors to the output terminals (U V W). Please seal the terminal switch insulation glue after finishing connect them. The soft starter and its enclosures must be fixedly earthed. During the maintenance and repair, the input must be off-power. This user manual content may be changed due to technical reasons or modified. We reserve the updating right. I Table of Contents Table of Contents 1. Online Running Soft Starter .................................................................................................................................. 1 1.1 Online running soft starter profile ................................................................................................................... 1 1.2 The main feature of online running soft starter ............................................................................................... 1 1.3 The main function ...........................................................................................................................................
    [Show full text]
  • Brushless DC Electric Motor
    Please read: A personal appeal from Wikipedia author Dr. Sengai Podhuvan We now accept ₹ (INR) Brushless DC electric motor From Wikipedia, the free encyclopedia Jump to: navigation, search A microprocessor-controlled BLDC motor powering a micro remote-controlled airplane. This external rotor motor weighs 5 grams, consumes approximately 11 watts (15 millihorsepower) and produces thrust of more than twice the weight of the plane. Contents [hide] 1 Brushless versus Brushed motor 2 Controller implementations 3 Variations in construction 4 AC and DC power supplies 5 KM rating 6 Kv rating 7 Applications o 7.1 Transport o 7.2 Heating and ventilation o 7.3 Industrial Engineering . 7.3.1 Motion Control Systems . 7.3.2 Positioning and Actuation Systems o 7.4 Stepper motor o 7.5 Model engineering 8 See also 9 References 10 External links Brushless DC motors (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors) are electric motors powered by direct-current (DC) electricity and having electronic commutation systems, rather than mechanical commutators and brushes. The current-to-torque and frequency-to-speed relationships of BLDC motors are linear. BLDC motors may be described as stepper motors, with fixed permanent magnets and possibly more poles on the rotor than the stator, or reluctance motors. The latter may be without permanent magnets, just poles that are induced on the rotor then pulled into alignment by timed stator windings. However, the term stepper motor tends to be used for motors that are designed specifically to be operated in a mode where they are frequently stopped with the rotor in a defined angular position; this page describes more general BLDC motor principles, though there is overlap.
    [Show full text]
  • Industrial Smart Starters
    PRODUCT CATALOG INDUSTRIAL SMART STARTERS franklin-controls.com SAFETY FIRST! As with all electrical equipment, only qualified, expert personnel should perform maintenance and installation. Comply with all applicable local and national codes and laws that regulate the installation and operation of equipment and read manuals thoroughly. Use only installation manuals and not this sales brochure for installation procedures. It is up to the installer to determine product suitability for a given application. © 2020 Franklin Electric Co., Inc. Product improvement is a continual process. Pricing and specifications subject to change without notice. Marketing materials should not be relied upon for technical specification. Cerus, Mira, Orion, Titan, Franklin Electric and associated logos are trademarks of Franklin Electric Co., Inc. All sales subject to Franklin Electric Terms and Conditions. INDUSTRIAL SMART STARTERS CATALOG ISS with SmartStart™ ........................................................................................................... 4 Ordering & Sizing Information ...................................................................................................................................................................................5 Specifications ..............................................................................................................................................................................................................6 Wiring Diagram ...........................................................................................................................................................................................................7
    [Show full text]
  • Current-Limiting Soft Starting Method for a High-Voltage and High-Power Motor
    energies Article Current-Limiting Soft Starting Method for a High-Voltage and High-Power Motor Yifei Wang 1,2, Kaiyang Yin 1,*, Youxin Yuan 1 and Jing Chen 1 1 School of Automation, Wuhan University of Technology, Wuhan 430070, China 2 Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA * Correspondence: [email protected] Received: 17 July 2019; Accepted: 8 August 2019; Published: 9 August 2019 Abstract: Focusing on the starting problems of a high-voltage and high-power motor, such as large starting current, low power factor, waste of resources, and lack of harmonic control, this paper proposes a current-limiting soft starting method for a high-voltage and high-power motor. The method integrates functions like autotransformer voltage reduction–current limiting starting, magnetron voltage regulation–current limiting starting, and reactive power compensation during starting, and then the power filtering subsystem is turned on to filter out harmonics in power system as the starting process terminates. According to the current-limiting starting characteristic curve, the topological structure of the integrated device is established and then the functional logic switching strategy is put forward. Afterwards, the mechanisms of current-limiting starting, reactive compensation and dynamic harmonic filtering are analyzed, and the simulation and experimental evaluation are completed. In particular, the direct starting and the current-limiting are performed by developing a simulation system. In addition, a 10 kV/19,000 kW fan-loaded motor of a steel plant is chosen as the subject to verify the performance of the current-limiting soft starting method.
    [Show full text]
  • Projectile 45
    4%.* A FEASIBILITY STUDY OF A HYPERSONIC REAL-GAS FACILITY FINAL REPORT Submitted To: Grants Officer NASA Langley Research Center Office of Grants and University Affairs Hampton, VA 23665 Grant d NAG1-721 January 1, 1987 to May 31, 1987 Submitted by: J. H. Gully Co-principal Investigator M. D. Driga Co-principal Investigator W. F. Weldon Co-principal Investigator (NBSA-CR-180423) A FEASIBILITY STUDY OF A N88-10043 HYPEBSOUIC RBAL-SAS FACILITY Final Report (Texas tJniv.1 154 p Avail: NTIS AC A08/tlP A01 CSCL 14s Uacl as G3/09 0 103727 Center for Electromechanico The University of Texas at Austin Balcones Research Center EME 1.100, Building 133 Austin, TX 78758-4497 (512)471-4496 CONTENTS Page INTRODUCTION 1 Discu ssion 2 HIGH ENERGY LAUNCHER FOR BALLISTIC RANGE 5 Introduction 5 Launch Concepts and Theory 6 COAXIAL ACCELERATOR 9 Introduction 9 System Description 10 System Analysis 13 Main Parameters 13 Launcher Configurations 15 Electromechanical Considerations 17 Power Supplies 22 Electromagnetic Principles 25 STATOR WINDING DESIGN 31 Starter Coil (Secondary Current Initiation) 35 Power Supply Characteristics 41 Projectile 45 RAILGUN ACCELERATOR 50 Introduction 50 Background 50 Railgun Construction 53 Synchronous Switching of Energy Store 58 Initial Acceleration 58 Method for Decelerating Sabot 60 Power Source 60 Inductor Design 69 Railgun Performance 75 Sa bot De sign 75 Plasma Bearings 78 Armature Consideration 80 Maintenance 82 Model Design 82 INSTRUMENTATION 84 Electromagnetic Launch Model Electronics 84 Data Acquisition 85 Circuit
    [Show full text]
  • Fault Tolerant Operations of Induction Motor-Drive Systems
    FAULT TOLERANT OPERATIONS OF INDUCTION MOTOR-DRIVE SYSTEMS by Chia-Chou Yeh, B.S., M.S. A Dissertation submitted to the Faculty of the Graduate School, Marquette University, in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY Milwaukee, Wisconsin May, 2008 ii Preface FAULT TOLERANT OPERATIONS OF INDUCTION MOTOR-DRIVE SYSTEMS Chia-Chou Yeh Under the Supervision of Professor Nabeel A. O. Demerdash at Marquette University This dissertation presents fault-tolerant / “limp-home” strategies of ac motor soft starters and adjustable-speed drives (ASDs) when experiencing a power switch open-circuit or short-circuit fault. The present low-cost fault mitigation solutions can be retrofitted into the existing off-the- shelf soft starters and ASDs to enhance their reliability and fault tolerant capability, with only minimum hardware modifications. The conceived fault-tolerant soft starters are capable of operating in a two-phase mode in the event of a thyristor/SCR open-circuit or short-circuit switch-fault in any one of the phases using a novel resilient closed-loop control scheme. The performance resulting from using the conceived soft starter fault-tolerant control has demonstrated reduced starting motor torque pulsations and reduced inrush current magnitudes. Small-signal model representation of the motor-soft starter controller system is also developed here in order to design the closed-loop regulators of the control system at a desired bandwidth to render a good dynamic and fast transient response. In addition, the transient motor performance under these types of faults is investigated using analytical closed-form solutions, the results of which are in good agreement with both the detailed simulation and experimental test results of the actual hardware.
    [Show full text]
  • Simulation of Variable Frequency Drive Pump for Storm Water Control
    This thesis/project/dissertation has been reviewed for 508 compliance. To request enhancements, please email [email protected]. SIMULATION OF VARIABLE FREQUENCY DRIVE PUMP FOR STORM WATER CONTROL A Project Presented to the faculty of the Department of Electrical and Electronic Engineering California State University, Sacramento Submitted in partial satisfaction of the requirements for the degree of MASTER OF SCIENCE in Electrical and Electronic Engineering by Muhammad Faisal Saeed SPRING 2017 © 2017 Muhammad Faisal Saeed ALL RIGHTS RESERVED ii SIMULATION OF VARIABLE FREQUENCY DRIVE PUMP FOR STORM WATER CONTROL A Project by Muhammad Faisal Saeed Approved by: __________________________________, Committee Chair Fethi Belkhouche, Ph.D. __________________________________, Second Reader Tracy Toups, Ph.D. ____________________________ Date iii Student: Muhammad Faisal Saeed I certify that this student has met the requirements for format contained in the University format manual, and that this project is suitable for shelving in the Library and credit is to be awarded for the project. __________________________, Graduate Coordinator ___________________ Preetham Kumar, Ph.D. Date Department of Electrical and Electronic Engineering iv Abstract of SIMULATION OF VARIABLE FREQUENCY DRIVE PUMP FOR STORM WATER CONTROL by Muhammad Faisal Saeed The project focuses on the application of variable frequency drives for storm water pump stations. Multiple pumps are activated according to the water level in the storage box. The multiple starts of the regular starter based pumps at full speed cause the pumps to consume high inrush current. This problem can be solved by using variable frequency drives. Simulink is used in this project to show that the variable frequency drive based storm water pump stations consume less electrical energy and thus improve pump efficiently as compared to the constant speed pump stations [1].
    [Show full text]
  • IGBT Based Induction Motor Soft Starter
    IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) ISSN: 2278-2834, ISBN: 2278-8735, PP: 27-32 www.iosrjournals.org IGBT based Induction Motor Soft Starter 1Sneha M Mukare 1(Electrical and Electronics Department, Hirasugar Institute of Technology Nidasoshi ,Karnataka, India) ABSTRACT: Three-phase induction motor of ratings beyond 50 kW take very large currents and low power factor while being started directly from a 3-phase supply. In order to mitigate the adverse effects of starting torque transients and high inrush currents in induction motors, a popular method is to use electronically controlled soft-starting voltages utilizing IGBT’s. Normally soft-starters are used for avoiding this problem and to achieve smooth starting of large capacity induction motors. Soft starters use ac voltage controllers to start the induction motor and to adjust its speed. The performance of a voltage-controlled large induction motor soft starter has been improved, resulting in nearly perfect current and torque profiles. Soft starters are used as induction motor controllers in compressors, blowers, fans, pumps, mixers, crushers and grinders, and many other applications. Starting torque pulsations are eliminated by triggering back-to-back-connected IGBT at proper points on the first supply voltage cycle. The soft starter is connected in motor drive during the starting condition only and once the motor get its rated speed then the soft starter is disconnected from the main motor system so that the motor get protected. For analysis of the various waveforms Digital Storage Oscilloscope Textronix TDS2024B is used. Keywords- AC voltage controller, dspic30F2010, Induction motor, soft starter.
    [Show full text]
  • Commissioning a 400 Hz Rotary Inverter
    Commissioning a 400 Hz Rotary Inverter Wayne Anthony Smith A dissertation submitted to the Department of Electrical Engineering, University of Cape Town, in fulfilment of the requirements for the degree of Master of Science in Engineering. Cape Town, January 2009 Declaration I know the meaning of plagiarism and declare that all the work in the document, save for that which is properly acknowledged, is my own. SignatureofAuthor.................................. ............................ 11 January 2009 i Abstract This dissertation covers the commissioning and testing of an aircraft’s constant frequency alternator as the power supply for the Blue Parrot radar. The Blue Parrot is an X-band radar which forms part of the navigation and weapon-aiming system onboard the Buccaneer S-50 SAAF aircraft. The radar set uses a source of three-phase power at 400 Hz, which the constant frequency alternator can supply with the aid of certain auxiliary systems. The auxiliary systems include a prime mover, blower fan and a telemetering system. The prime mover has high starting currents which were reduced significantly by the use of a soft-starter. During testing, the constant frequency alternator started overheating and a blower fan was selected based on its thermal requirements. Significant cooling of the constant frequency alternator’s case temperature was achieved by the use of a blower fan and shroud. The generator control unit monitors and regulates all parameters on the unit except for case temperature and blower fan pressure. A telemetering system was designed and built to monitor and display these parameters. ii Acknowledgements Thank you LORD a second time. I would also like to express my appreciation to those who helped me achieve this mile- stone.
    [Show full text]