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Transformer Operational Principles, Selection and Troubleshooting
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Transformer Operational Principles, Selection and Troubleshooting
Senior Wastewater Treatment and process Engineer at Engicon with a B.Sc. in chemical and Environmental Engineering from Sarajevo Universityand Alexandria University, Egypt (Pollution Control). He has 38 years of a unique experience in the water and environmental sectors both nationally and international. Capacity building and training has been an integral part of Abdul WahabMatar’s work throughout his career. He was an expert responsible for upgrading and training local staff and operation of Sana’ treatment plant with a capacity of 50,000 m3/day and extended aeration process.
Who Should Attend
• Engineers & Technicians from electricity supply industry
• Engineering Professionals from companies manufacturing and operating power and distribution transformers
• Engineers & Technical Personnel in power utilities, petrochemical plants, service professionals of large infrastructure projects
ICTD International Center for
Training and Development
Tel.: +971 (0) 2 6322275
Fax: +971 (0) 2 6342422
Abu Dhabi – UAE
02-06 Nov 2014
Muscat, Oman
In-House Training
INTRODUCTION Power and distribution are essential devices in electricity supply. Their ratings can vary from small size distribution transformers of a few kVA up to very large power transformers of 1000 MVA or more. In terms of voltage ratings transformers can have operating voltages up to several hundreds of kilovolts. They represent a major asset of the power utility and any industrial plant. Failure of a transformer can be very costly and dangerous for other major equipment and personal alike. The design and operation of any transformer must fulfill certain requirements in order to withstand the electric, thermal and mechanical stresses during its service life. Tests and maintenance of transformers according to the relevant standards are intended to ensure that a transformer passing them will give trouble-‐free service for many years under the conditions it is likely to experience after its installation.
1.6 Autotransformers 1.7 Disadvantages of Principal Connections,
Tertiary Windings, 1.8 Transformer Windings, Interconnection
of Windings, Advantages and 1.9 Harmonics in Transformers, Parallel
Operation of Transformers, Loading of Transformers in Parallel, Paralleling Requirements, Polarity
1.10 Standards for Transformers, Types and Requirements
1.11 Transformer Tappings and Connections 1.12 Ability to withstand Short Circuit, Sound
Level 1.13 Case Studies and Workshop Discussion
Module (02) Transformer Constructional Details
2.1 Transformer Oil, Characteristics, Oil Oxidation, Breakdown Voltage, Water Content, Acidity, Oil Testing, Field Oil Testing, Dissolved Gas Analysis, Treatment and Filtering of Oil
2.2 Effect of Oil Expansion, Breathing Action, Buchholz Relay, Explosion Vents
2.3 Instrument Transformers 2.4 Transformers for Industrial Applications:
a. Electro-‐chemical b. Arc and Induction Furnaces c. High Voltage Testing Transformers d. Precipitator Transformers e. Dry Type Transformers
2.5 Construction and Details, Transformer Cooling, Natural Cooling, Forced Cooling
2.6 Case Studies and Workshop Discussion
Module (03) Transformers Features and
Thermal Performance
3.1 Thermal Performance and Cyclic Rating of
Transformers. Temperature Indicators and
Alarms
3.2 Transformers Impedance, Electromagnetic
Forces
3.3 Transformer Construction: a. Cores b. Assembly
3.4 Transformer Windings Construction: a. Coil Types b. Disc Coils c. Cross-‐over Coils d. Concentric Coils e. Sandwich Coils f. Transpositions
COURSE OBJECTIVES Delegates will gain a detailed appreciation of the following:
• Practical solutions for specifying, operating and maintaining power transformers in a utility or plant environment.
• Comprehensive understanding of principles, selection, testing and commissioning, protection, maintenance and troubleshooting of distribution and power transformers.
• The necessary safe procedures relating to transformer operation and related circuitry.
• Testing and maintenance of transformers. • How to care for your transformers.
TRAINING METHODOLOGY This training program is lecture-‐based and customized to the needs of the audience, providing meaningful experience for major wastewater treatment plants. Daily sessions include formal presentation, prepared in the Power Point, interspersed with directed discussion and case study. In addition to formal lectures and discussions, the delegates will learn by active participation through the use of self-‐assessment, group discussions, analysis of real-‐life case studies.
CERTIFICATES Certificate will be issued from the International Centre for Training & Development (ICTD) to all attendees completing minimum of 85% of the total training hours.
Course Outline Module (01) Introduction, General Principles and Classification
1.1 General Classification of Transformers 1.2 Transformer Construction, Core-‐Type 1.3 Shell-‐Type, Dry-‐Type Transformers 1.4 Oil-‐filled Transformers 1.5 Cooling Techniques
COURSE OUTLINES
3.5 Transformer Tanks and Radiators,
Tank Losses, Paint Treatments
3.6 Transformer Fittings:
• Lifting Lugs • Undercarriages • Jacking Pads • Tie-‐Down Lugs • Bleed Pipes • Thermometers
3.6 Case Studies and Workshop Discussion
Module (04) Transformer Operation and Maintenance
4 4.1 Distribution Voltage Adjustment, Off-‐Load Tap Changing, On-‐Load Tap Changing
5 Switching of high voltage underground cables supplying distribution transformers
6 Earthing and over-‐current protection of distribution transformers
7 Transformers maintenance:
• Oil preservation
• Deterioration of oil • Breathers • Condition monitoring
• Faults in transformers
• Tapping and windings 8 4.2 Advanced transformer maintenance
9 4.3 Guidelines on how to care for your distribution transformers
4.4 Case Studies and Workshop Discussion Module (05) Transformer Testing
4.1 Transformer Routine Tests 4.2 Measurement of Winding Resistance 4.3 Measurement of Voltage Ration 4.4 Measurement of Impedance Voltage Short-‐Circuit 4.5 Measurement of No-‐Loads Loss and Current 4.6 Insulation Resistance 4.7 Harmonics Testing 4.8 Separate-‐Source Power-‐Frequency Voltage withstand Test 4.9 Induced Overvoltage withstand Test 4.10 Transformer Type Test 4.11 Temperature-‐Rise Test 4.12 Lighting Impulse Test 4.13 Sound Level 4.14 Special Test:
a. Transformer Partial Discharge Testing 4.15 Accuracy and Interpretation of Test results and of Test Reports
TIMING SCHEDULE
Daily Course Timings
07:30 – 08:00 Morning Coffee / Tea
08:00 -‐ 10:00 First Session
10:00 -‐ 10:20 Coffee / Tea / Snacks
10:20 -‐ 12:20 Second Session
12:20 -‐ 13:30 Lunch Break & Praying Time
13:30 -‐ 15:00 Last Session
COURSE FEES
3,300 US$ This rate includes participant’s
manual, Hands-‐Outs, buffet lunch,
coffee/tea on arrival, morning & afternoon
of each day.
Registration deadlines:
Seven days prior to course offering
Send (3) delegates and get a 10% discount on the third participant.
IN-‐HOUSE BENEFITS
ü A tailored approach
ü Reduced costs
ü Reduce disruption
ü Convenient
REGISTRATION FORM ICTD -‐ International Center for Training and Development
To register, please email/fax this page to us. For more information or IN-‐HOUSE, contact: Mr. Ahmed Al Gohary +971 (0) 526472884 [email protected] For full list of courses, visit our website at http://www.ictd.org Course/Seminar Title: Course Date: Participant Details (for additional participants, please make copies of this form) NAME JOB TITLE EMAIL ADDRESS
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For us to serve you better in the future, please indicate your mode of referral for this training course:
Existing ICTD Client ICTD Website ICTD Email-‐Flyers Online Others Please indicate by putting an “X” in the relevant box,.
Company Name: Company Address:
Registration Contact -‐ QA / HR NAME JOB TITLE EMAIL ADDRESS TELEPHONE
Accounts / Billing Contact NAME JOB TITLE EMAIL ADDRESS TELEPHONE
Payment Terms (Please indicate CHEQUE/CASH / BANKTRANFER) Please contact ICTD
Terms and Conditions 1. Participant registration is confirmed upon receipt of registration form. 2. Courses will be confirmed 3 weeks before date of commencement of course. 3. Once a course is confirmed, full payment has to be made immediately. 4. ICTD, Abu Dhabi reserves the right to reschedule or cancel any course in the event of unforeseen circumstances; every effort will be made to inform the participants. 5. Full fees are refundable provided written notification is received 14 days before course commencement, and 50% of the fee is chargeable if notification is received within 14 days preceding course commencement. After which full course fees will be charged. 6. By submitting this registration form, you have accepted and agreed to the terms and conditions as stated
©2014 -‐ 2015 International Center for Training and Development. LLC, Abu Dhabi, UAE
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