About
Course Introduction
High voltage equipment forms the backbone of modern electrical power transmission and distribution infrastructure. Operating and maintaining high voltage assets requires a thorough understanding of system architectures, insulation behaviors, switching phenomena, and equipment design principles to ensure grid reliability and personnel safety.
This intensive 5-day training program delivers a foundational yet comprehensive overview of high voltage power systems and their core components. Participants will gain practical insights into the operation, specification, testing, and safety protocols associated with high voltage transformers, switchgear, substations, and insulation systems.
Course Objectives
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Understand high voltage power system layouts and voltage level classifications
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Master the operational principles of high voltage transformers and switchgear
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Evaluate high voltage insulation systems and dielectric breakdown mechanics
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Analyze switching transients, overvoltages, and surge protection methods
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Comprehend high voltage substation configurations and grounding designs
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Learn standard high voltage testing procedures, safety protocols, and maintenance
Course Outline
High Voltage Power Systems & Insulation Fundamentals
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High Voltage Level Classifications (HV, EHV, UHV)
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Power System Grid Topologies & Substation Layouts
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High Voltage Insulation Types (Solid, Liquid, Gas)
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Dielectric Breakdown Mechanics in Insulation
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Electric Field Distribution & Stress Control
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Partial Discharge (PD) Phenomena & Detection
High Voltage Transformers & Reactors
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Power Transformer Construction & Core/Winding Design
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Transformer Insulation & Cooling Systems (ONAN, ONAF, OFAF)
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Tap Changers: On-Load (OLTC) vs. Off-Circuit
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Instrument Transformers for High Voltage Systems (CTs & VTs/CVTs)
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Shunt Reactors & Neutral Earthing Reactors
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Bushings & Surge Arrester Integration
High Voltage Switchgear & Circuit Breakers
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High Voltage Circuit Breaker Technologies ($SF_6$, Vacuum, Air)
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Arc Quenching Principles & Interruption Media
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Disconnectors, Earth Switches & Load Break Switches
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Gas-Insulated Switchgear (GIS) vs. Air-Insulated Switchgear (AIS)
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Operating Mechanisms & Control Circuits
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Switchgear Ratings, Duty Cycles & Short-Circuit Capacities
Overvoltages, Transients & Substation Grounding
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Switching Transients & Insulation Coordination
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Lightning Strikes & Atmospheric Overvoltages
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Surge Arresters (Metal Oxide Varistors - MOV)
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High Voltage Substation Grounding Grid Design
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Step and Touch Potential Safety Limits
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Insulation Coordination Standards (IEC & IEEE)
Testing, Maintenance & High Voltage Safety
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High Voltage Factory Acceptance Testing (FAT) & Site Testing (SAT)
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Insulation Resistance, Tan Delta & Dielectric Testing
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Dissolved Gas Analysis (DGA) for Power Transformers
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Condition Monitoring & Asset Management Strategies
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High Voltage Safety Rules, Clearance Distances & Lockout/Tagout (LOTO)
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Case Studies on High Voltage Equipment Failures
Training Methodology
Pathways Training and consulting adopts the newest techniques of human resources Training and consulting and, with the following:
- Theoretical lectures are delivered via PowerPoint and visual displays (videos and short films)
- Making scientific evaluation to the trainee (before and after)
- Brainstorming and role-playing
- Using case studies related to the scientific material being delivered and the trainees` work.
- The participants get the scientific and practical material printed and on CDs and Flash memories.
- Preparing records and reports of the participants` attendance and results, with a general evaluation of the training program.
- A group of the best trainers and experts in all fields and specialties professionally prepares the scientific material.
- After finishing the course, the participants get certificates of attendance signed, certified, and issued by pathways Training and consulting.
- Our training programs start at 9:00 o`clock in the morning and end at 2:00 in the afternoon, with snack buffet during the lectures.
