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Electrical Juli 2022 Technical & Engineering Yogyakarta

Electrical Transformer Testing and Maintenance

DESCRIPTION

Pelatihan ini meliputi teori, operasi, pemeliharaan dan pengujian transformator daya dan peralatan tambahan. Topik yang disertakan adalah dasar-dasar transformator, trafo peringkat, trafo pendinginan, gas nitrogen sistem dan sistem isolasi. Juga dibahas mengenai teknik-teknik pengujian transformator. Materi ini juga membahas mengenai bidang keamanan, prosedur pemeliharaan dan pengujian pada pad-mount, power transformer. Pelatihan ini mencakup transformator digunakan dalam industri komersial dan sistem distribusi daya, termasuk minyak dan unit tipe kering, serta Transformator daya yang lebih besar yang digunakan dalam aplikasi utilitas. Load and no-load tap changer maintenance, ac and dc testing, routine inspections dan oil sampling and testing, bagaimana melakukan tes minyak rutin, serta memahami bagaimana melakukan tes utama yang diperlukan.

TRAINING OUTLINE

Transformer Principles

• Transformers
• Right Hand Rule
• Magnetic Flux
• Magnetic Induction
• Left Hand RuleTurns Ratio
• Transformer Losses
• Transformer Types

Vector Diagrams

• Operating Principles
• Operation Without Load
• Operation with Load

Transformer Classifications

• Service Classification
• Instrument Transformers : Current & Potential

Transformer Construction (Construction)

• Magnetizing Circuits
• Losses :Hysteresis Loss, Eddy-Current Loss
• Efficiency

Cooling

• Air Cooled Oil-Immersed : Water-Cooled, Forced-Oil Cooling, SelfCooling with Air Blast
• Temperature Limits
• Transformer Loading

Tap Changers

• No-Load Tap Changer
• Tap Changing Under Load
• Phase-Angle Control

Transformer Connections

• Single Phase Circuits
• Two-Phase Circuits
• Three-Phase Circuits

Transformer Maintenance

• Insulation Testing
• High Potential Testing
• Turns Ratio Testing
• Polarity Testing
• Power Factor
• Excitation Current
• DC Winding Resistance
• Polarization Recovery
• Insulating Fluid Dielectric
• Dissolved Gas Analysis

Transformers and Relaying

• Transformer Faults
• Differential Relaying : Normal Load, External Faults, Internal Faults

TRAINING METHOD

Presentation

Discussion

Case Study

Evaluation

FACILITY

Training Kit

Handout

Certificate

Lunch + 2 X Coffee Break

Penjemputan

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