About This Course

A transformer protection course is essential for engineers,
technicians, and professionals responsible for the design,
operation, and maintenance of transformer systems.
This course covers the below topics:
• Transformer introduction
• Transformer simulation
• Transformer faults
• Transformer protection
• SIPROTEC 4 7UT6 •Transformer relay config and settings
• SIPROTEC 5 7UT8 config and settings
• Transformer fault simulations and analysis

Who Should Attend The Course

Mr. Barrie Moor Principal Engineer at Power System Protection Training, Australia.With 39 year’s experience in the Queensland electricity supply industry, our principal engineer, the seminar author and presenter, Barrie Moor, was involved in the design, coordination and implementation of protection schemes associated with Queensland’s HV and EHV transmission systems since 1981.Barrie also has extensive experience with the protection of large generating plants having had responsibility for the protection of generators at many of Queensland’s major power stations.

Know About Your Trainer

Dr. Saeed Roostaee has Experience in Protection Relay IEDs, Substation Automation, IEC 61850 and Training Industry. Strong quality assurance professional with Ph.D. in Electrical Engineering from JMI (A central University), New Delhi, India. Expert in: DIGSI 4; DIGSI 5; OMICRON Test Universe; IEC 61850 System Configurator; SEL ACSELERATOR QuickSet; ETAP; PSCAD; OMICRON IEDScout; SIPROTEC 5; SIPROTEC 4; SEL Relays; OMICRON CMC; RTDS; Vizimax IEC 61850 Merging unit.
Highlights: Research in power system automation, specifically in substation automation, Power system protection, and smart grid Published more than technical 20 papers and E-books in the area of SAS, IEC 61850, and protection system Experimental works in: Protection relays (SEL and Siprotec products) Protection Relay test kit (OMICRON CMC-256 Plus) IEC61850 tools (IEDScout, IEC61850 configurator, GOOSE Air, and Merging Unit and IEC 61850-9-2) Knowledge based websites developed for researchers. trainee engineers, industry personals and students (www.FB.com/IEC61850 (with more than 3500 followers), www.Elec-Engg.com and www.ProtectionRelay.ir) to share the experienc- es Workshops, Tutorials and lectures Substation Automation Design and Configuration using IEC 61850 Devices Investigation and Design of Communication Requirements for SAS and Analysis of IEDs Data Research on protocol testing, and implementation.

Course Outline:

Day ONE

TRANSFORMER INTRODUCTION:

• Transformer Defination
• How a transformer works
• Eddy current and core lamination
• Three-phase transformers and single-phase transformers
• Core and shell type transformer
• Equivalent Circuit of a Transformer
• Transformer Winding Connections
• Vector Group and phase shift
• Transformer Nameplate
• Transformer simulation & calculations

TRANSFORMER FAULTS

• Earth fault on H.V. external connections
• Phase-to-phase fault on H. V. external connections
• Internal earth fault on H.V. windings
• Internal phase-to-phase fault on H.V. windings
• Short circuit between turns H.V. windings
• Earth fault on L.V. external connections
• Phase-to-phase fault on L.V. external connections
• Internal earth fault on L. V. windings
• Internal phase-to-phase fault on L.V. windings
• Short circuit between turns L.V. windings
• Internal faults: Winding short circuits, inter-turn faults, and earth faults
• External faults: Overloads, overvoltage, and external short circuits
• Mechanical failures: Core faults, insulation breakdown, and overheating
• Transformer inrush current and its effects

Day TWO

TRANSFORMER PROTECTION RELAYS

• Protection relay evaluation
• Numerical transformer protection relay IEDS
• Typical numerical relay block diagram
• Numerical relay advantages
• Digital phase measurement
• Phasor values
• Symmetrical component
• Overcurrent element
• Negative sequence element
• Voltage protection element
• Differential protection
• Impedance plane
• Distance element
• Metering of voltages, currents, power, and other measurements
• Oscillography; sequence of events capture with time tagging

TRANSFORMER PROTECTION FUNCTIONS:

• Differential Protection
• Restricted Earth Fault Protection
• Thermal overload Protection
• Over-excitation Protection
• Overcurrent protection
• Earth fault protection
• Under and over voltage protection
• Thermal overload protection
• Mechanical protection such as Buchholz-relay, winding temperature, …
• Transformer Protection Schemes

DAY THREE

SIPROTEC 4 7UT6 CONFIGURATION, AND SETTINGS

• 7UT633 for protection objects with three ends
• 7UT633 for protection objects up to five ends
• CT Connections
• VT connection
• 7UT6 connection diagram
• 7UT6 MLFB
• 7UT6 Functional scope
• CT Configuration and assignment in DIGSI 4
• Power system settings in DIGSI 4
• Transformer settings in DIGSI 4
• CT settings in the DIGSI 4
• 7UT6 differential protection settings
• 7UT6 differential characteristic settings
• 7UT6 inrush 2nd harmonic settings
• 7UT6 n-th harmonic settings
• Circuit breaker settings in the 7UT
• Restricted earth fault protection 87N (7UT6)

DAY FOUR

SIPROTEC 5 7UT8 CONFIG AND SETTINGS

• SIPROTEC 5 hardware • SIPROTEC 5 7UT8 Functional Scope • SIPROTEC 5 7UT8 Application Configuration • 7UT8 order code • Measuring Points • CT Connections • VT connection • Function groups and functions Configuration • Meas. Point & Function point connections • Binary Inputs Configuration • Binary outputs Configuration • LED Configuration • Transformer side settings • Over excitation protection • Over Voltage protection • Under voltage protection • REF protection settings • Trans Diff Protection Config and settings • SIPROTEC 5 7UT8 LCD Config

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