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Sunday, 25 March 2012

Electrical Transformer Basics Training


Electrical Transformer Basics Training

Course Duration: 2 Days

Course Description:
Electrical Transformer Basics Discusses how units are Used To Reduce voltage for: various day-to-day electrical applications. More than 50 million distribution transformers are electrical utility poles and Located on cement pads across the United States and Canada. Electrical Transformers serve the crucial function of transforming voltage potential to a Higher or lower values ​​to Meet the appliances and machinery voltage level energy requirements. Improper use, maintenance and neglect Cdn Heavy Losses due to Businesses as well as to the environment. Transform this electrical training course opérationnel safe launch of new basic and field diagnostics of transformers with the focus on safe operation, testing and maintaining of the distribution transformers and substations Normally installed in one pole.
Students learn Will Transform Electrical Basics - safe and proper Maintenance and testing procedures on power transformers. The race covers Transformers Used in Commercial and industrial power distribution systems, Including oil and dry-type units. Larger power transformers Used in utility applications are Covered aussi.
Who Should Attend:Field and shop technicians, field engineers, supervisors and others responsible for the testing and maintaining of power transformers rated 750kVA to 500MVA and 4.16kV to 500kV.
LEARNING OUTCOMESUpon completion of this course, the participant Should Be Able to:

Understand the basic operation of a turn.
Understand turns ratios and calculate terminal voltage and current.
Understand terminal markings and: various single phase and Three phase wiring schemes. (Vs. DELTA WYE).
Understand how to perform a polarity test is a potential convert.
Understand the electrical testing methods are Performed Such transformers have insulation resistance testing, excitement and power factor testing.

    Understand the Various Tests Performed on Insulating oil.


Part 1

Participants Will Be Introduced to the different kinds of single phase transformers and Three building, various kinds of core material, windings layout, connections, tap changers, voltage classifications and turning applications.
1. Transformers kinds

Single and Three Phase
Power and distribution transformers
Voltage (VT) and current transformers (CT's)
Phase shifting
2. Voltage classes and applications and connections
3. Load taps changers (LTC's)

Resistance and Reactance type
Tap position indication
Ratings and Selection Criteria
LTC with power factor correcting capacitor
4. Connections

Polarity and angular displacement
Y - Y, Δ - Δ, Y - Δ and Δ - Y connections
Interconnected Y and grounding
Phase shifting
3phase to 6 phase connection
5. Temperature monitoring and cooling methods and accessories
6. Paralleling transformers

Part 2

This hand Introduce The Fundamental theory behind the voltage and current transformation, winding resistance and impedance calculation, voltage regulation, Losses and output efficiency estimation for power and distribution transformers Both.
1. Name plate rating - Vs Volt Amp Watt
2. Transform testing

Class and sequence
Turns ratio
Insulation and impulse
Control Devices
3. Performance tests

No load and excitation
Load Losses and impedance measurement
Winding resistance and short circuit test
Heat run test
Winding resistance and impedance calculation
4.Performance Characteristics, loading, regulation and efficiency

Transform Requirements loading

Part 3

Such issues as the effect of saturation, harmonics and power electronic devices turn on the Performance Will Be Addressed aussi. Day 1 will wrap up by showing how to select for Transformers: various kinds of measurement and power conversion Including the de-rating ratio calculation.
1. Magnetizing, inrush and over excitation
2. Transformers for drives and harmonics influences on performance

Secondary current distortion due to loading semiconductor devices
Total harmonic distortion
Reactors and Filters
3. Transform-rating and what K-means clustering ratings
4. Standards and findings a day


1. Installation, Testing and Maintenance

Standards for Transformers
Installation & Relocation
Transforming Type Tests
Transform Routine Tests
Transforming Commissioning Tests
Transforming Maintenance: Concepts of Preventive & Maintenance provided based
Case studies
2. Installation and operation safety

Connections and Vector groups
Procedures Relating to turn Safe operation in a utility or industry environment
Thermal Performance and Loading of Transformers
Practical solutions for operating and Maintaining power transformers
Voltage Adjustment using Off-Load On-Load Tap & Changing
HV Earthing of Transformers
3. Transforming failure statistics

Transform failure modes
Internal Faults
External Faults
Insulation Damage
Component Failures
Transforming failure statistics
How to categorize failure modes transform
4. Protection methods

Oil Temperature Alarm and Trip
Winding Temperature Alarm and Trip
Buchholz relay, Oil Surge Pressure relief relay & relay
Surge Protection
Fuse protection
Protective relaying? V Overcurrent, Earth fault, Differential & Overflux
5. Online monitoring

Oil Quality Analysis
Dissolved Gas Analysis
Furan Compound Analysis
Partial Discharge Monitoring? V Acoustic & Electrical
Interpretation of test results
6. General diagnosis and assessment test

Insulation Resistance and Polarization Index
Turns Ratio and Excitation Current
Capacitance and Power Factor
Winding Resistance
Recovery Voltage Measurement
Frequency Response Analysis
Interpretation of test results
7. Tap changers inspection and test

Tap Change Types? V Circuit & Load Off
Off Circuit Tap Switch Maintenance & Repairs
Load Tap Changer (LTC) Failure modes
LTC Oil Analysis
LTC Temperature Analysis
LTC Vibration Acoustic Signature Analysis
Motor Current Signature Analysis LTC
LTC Maintenance & Repairs
8. Transforming testing accessories

Power factor testing of bushings
Electrical Insulation & other Tests of HVCTs
Periodic inspection and testing of Neutral Earthing Resistor
Analysis of testing data
Routine inspection of cooling fans and pumps, gauges & breather
9. Remaining life assessment

Degree of Polymerization (DP) testing
Relationship Between DP and Furan concentration
Remaining Life Assessment Models based on opérationnel history, Dissolved gas and furan concentrations

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1 comment:

  1. The information, provided by you about electrical transformer basics training, is great. If you want to be an expert in the automobile and engineering field then you should know the basic operations of a transformer.