Electrical engineering courses

M.V SWITCHGEAR

Ref No: 2015051

INTRODUCTION

This course is designed to update participants with the latest development of Circuit Breakers and to present some of the more common and updated aspects of low, medium and high voltage switchgear maintenance. It must be understood that there is an incredible variety of equipment used on low, medium and high voltage switchgear today. Switchgears play an important role in the distribution and control of electrical power in manufacturing or power plant and in a utility distribution system. Negligent maintenance practices can lead to power system inefficiency and loss of system reliability.
An older plant may have switchgear that was built in the forties in the older areas and modern switchgear in other areas as the plant was upgraded. This of course will present maintenance problems to the maintenance manager and technician. Newer plants will probably have modern equipment of a limited variety and manufacture. It is these similarities that will be covered in the course.

COURSE OBJECTIVES

Upon successful completion of this course, the participant should be able to:
• Discuss standard switchgear terminology. 
• Discuss the general classifications of circuit breakers. 
• Discuss circuit breaker construction. 
• Discuss circuit breaker ratings. 
• Discuss arcs and arc interruption 
• Discuss insulation resistance testing. 
• Discuss power factor testing 
• Discuss transformer testing. 
• Discuss protective devices 
• Discuss the operation of air circuit breakers. 
• Discuss the operation of vacuum circuit breakers 
• Discuss the operation of gas circuit breakers 
• Discuss circuit breaker maintenance
 

AGENDA DAY ONE
CHAPTER 1: HAZARDS OF ELECTRICITY
 1- HISTORY
 2-IMPORTANCE OF GROUNDING 
 3- GROUNDING CLASSIFICATION
 4- EARTH, GROUND AND NEUTRAL
 5- DEFINITIONS
 6- CONDITIONS OF DANGER
 7- HAZARD ANALYSIS
 8- ELECTRIC SHOCK
 9- AFFECTED BODY PARTS
 10- WHY EARTHING?
 11- GROUND FAULT INTERRUPTING METHODS
 12- ELECTRICAL SAFETY MODEL
 13- IP PROTECTION

CHAPTER 2: GENERATION OF POWER AND GENERATING PLANTS
1- INTRODUCTION
2- ADVANTAGES OF ELECTRICAL ENERGY
3- SOURCES OF ENERGY
4- GENERATION OF ELECTRICAL POWER
5- CONVENTIONAL POWER PLANTS
6- STEAM POWER PLANTS
7- HYDROELECTRIC (HYDEL) PLANTS
8- NUCLEAR POWER PLANTS
9- DIESEL POWER PLANTS
10- COMPARISON OF VARIOUS POWER PLANTS
11- DO IT YOURSELF

AGENDA DAY TWO
CHAPTER 3: SUPPLY SYSTEMS

1- INTRODUCTION
2- GENERATION, TRANSMISSION AND DISTRIBUTION
3- IMPORTANT POINTS
4- STAR DELTA CONNECTIONS
5- COMPARISON BETWEEN A.C. AND D.C. SYSTEMS OF TRANSMISSION AND DISTRIBUTION
6- COMPARISON BETWEEN OVERHEAD AND UNDERGROUND SYSTEMS OF TRANSMISSION AND DISTRIBUTION
7- HIGH VOLTAGE (H.V.) D.C. TRANSMISSION
8-  ADVANTAGES OF H.V.D.C. TRANSMISSION
9- DO IT YOURSELF

CHAPTER 4: SUBSTATIONS
1- INTRODUCTION
2- SUBSTATION
3- CLASSIFICATION OF SUB-STATIONS (SS)
4- COMPARISON BETWEEN INDOOR AND OUTDOOR SUB-STATIONS
5- REQUIREMENTS OF A GOOD SUB-STATION
6- EQUIPMENT OF A SUB-STATION
7- OTHER EQUIPMENT FOR A SUB-STATION
8- POLE-MOUNTED SUB-STATION
9- UNDERGROUND SUB-STATION
10- SYMBOLS FOR EQUIPMENT IN SUB-STATIONS
11- TERMINAL AND THROUGH SUB-STATIONS
12- KEY DIAGRAM OF 66/11 KV SUB-STATION
13- MINIMUM CLEARANCE FOR OUTDOOR A.C. SUBSTATION
14- EARTHING EQUIPMENT
15- NEUTRAL GROUNDING
16- METHODS OF NEUTRAL GROUNDING
17- DO IT YOURSELF

CHAPTER 5: INTRODUCTION TO SWITCHGEAR
1- INTRODUCTION
2- SWITCHGEAR
3- DIFFERENCE BETWEEN A FUSE AND A CIRCUIT BREAKER
4- COMPARISON BETWEEN SWITCH, ISOLATOR AND CIRCUIT BREAKER
5- COMPONENTS OF A SWITCH GEAR
6- BUS-BAR ARRANGEMENTS
7- RATINGS OF BUSBARS
8- SWITCHGEAR ACCOMMODATION
9- CLEARANCE OF BUSBARS
10- SHORT-CIRCUIT
11- SHORT-CIRCUIT CURRENTS
12- FAULTS IN A POWER SYSTEM
13- DO IT YOURSELF


AGENDA DAY THREE
CHAPTER 6: PROTECTION OF BUS BARS, FEEDERS AND TRANSMISSION LINES

1- INTRODUCTION
2- BUS BARS
3- DIFFERENTIAL PROTECTION OF BUSBARS
4- FAULT BUS PROTECTION
3- PROTECTION OF FEEDERS
4- TIME GRADED OVERCURRENT PROTECTION
5- PROTECTION OF TRANSMISSION LINES
6- DISTANCE PROTECTION
7- OVERLOAD PROTECTION OF 3 PHASE LINE
8- DO IT YOURSELF
CHAPTER 7: CIRCUIT BREAKER
 1- INTRODUCTION
 2- CIRCUIT BREAKERS
 3- ARC PHENOMENON
 4- PRINCIPLES OF ARC EXTINCTION
 5- METHODS OF ARC EXTINCTION
 6- IMPORTANT TERMS
 7- CLASSIFICATION OF CIRCUIT BREAKERS
 8- OIL CIRCUIT BREAKERS
 9- TYPES OF OIL CIRCUIT BREAKERS
 10- PLAIN BREAK OIL CIRCUIT BREAKERS
 11- ARC CONTROL OIL CIRCUIT BREAKERS
 12- LOW OIL CIRCUIT BREAKERS
 13- AIR BLAST CIRCUIT BREAKERS
 14- TYPES OF AIR-BLAST CIRCUIT BREAKERS
 15- SULPHUR HEXAFLOURIDE (SFG) CIRCUIT BREAKERS
 16- VACUUM CIRCUIT BREAKERS (VCB)
 17- CIRCUIT BREAKER COMPONENTS
 18- CIRCUIT BREAKER RATINGS
 19- APPLICATION RANGE OF CIRCUIT BREAKERS
 20- TYPES OF CIRCUIT BREAKER MOUNTINGS AND ENCLOSURES
 21- TESTING OF CIRCUIT BREAKERS
 22- MECHANICAL TESTS
 23- THERMAL TESTS
 24- DIELECTRIC TESTS (HIGH VOLTAGE TESTS)
 25- SHORT-CIRCUIT TESTS
 26- INSULATION RESISTANCE MEASUREMENT AT SITE
 27- CONTACT RESISTANCE TEST
 28- OPERATION TEST
 29- MAINTENANCE OF CIRCUIT BREAKER
 30- MAINTENANCE SCHEDULE FOR CIRCUIT-BREAKERS
 31- MAINTENANCE OF OIL CIRCUIT BREAKER (BOCB, MOCB)
 32- MAINTENANCE OF AIR-BLAST CIRCUIT BREAKERS
 33- MAINTENANCE OF VACUUM CIRCUIT-BREAKER
 34- MAINTENANCE OF SF6 CIRCUIT-BREAKER
 35- DO IT YOURSELF

AGENDA DAY FOUR
CHAPTER 8: SUBSTATION  EARTHING

1- EARTHING PRINCIPLES
2- PROTECTIVE EARTHING EQUIPMENTS
3- SOIL RESISTIVITY
4- EARTH
5- GROUNDING ELECTRODES
6- EARTHING CONDUCTORS
7- EQUIPMENT GROUNDING
8- BONDING  
9- PRACTICAL CONSIDERATIONS
10- METHODS FOR DECREASING EARTHING RESISTANCE
11- GROUND INSPECTION WELLS
12- SOFTWARE
13- GROUND RESISTANCE MEASUREMENTS
14- PROTECTIVE GROUNDING OF POWER LINES

CHAPTER 9: ELECTRICAL MAINTENANCE PROGRAM DEVELOPMENT
1- WHY EPM IS IMPORTANT?
2- VALUES AND BENEFITS
3- AN EFFECTIVE EPM PROGRAM
4- PLANNING AND DEVELOPING AN EPM PROGRAM
5- METHODS AND PROCEDURES

AGENDA DAY FIVE
CHAPTER 10: ELECTRICAL SAFETY EQUIPMENT

1- INTRODUCTION
2- GENERAL INSPECTION AND TESTING REQUIREMENTS FOR ELECTRICAL SAFETY EQUIPMENT
3- FLASH AND THERMAL PROTECTION
4- HEAD AND EYE PROTECTION
5- RUBBER-INSULATING EQUIPMENT
6- HOT STICKS
7- INSULATED TOOLS
8- BARRIERS AND SIGNS
9- SAFETY TAGS, LOCKS, AND LOCKING DEVICES
10- VOLTAGE-MEASURING INSTRUMENTS
11- SAFETY GROUNDING EQUIPMENT
12- GROUND FAULT CIRCUIT INTERRUPTERS
13- SAFETY ELECTRICAL ONE-LINE DIAGRAM
14- THE ELECTRICIAN'S SAFETY KIT

CHAPTER 11: MEDIUM-AND HIGH-VOLTAGE SAFETY SYNOPSIS
1- INTRODUCTION
2- HIGH-VOLTAGE EQUIPMENT
3- GROUNDING SYSTEMS OF OVER 1000 V
4- SAFETY EQUIPMENT
5- SAFETY PROCEDURES
6- GOLDEN RULES


 

This course is applicable to engineers and technicians who need a sound understanding of Low, Medium and High Voltage Circuit Breaker inspection, maintenance and repair.

Trainees shall receive a portfolio containing a comprehensive course manual.

Attendees shall receive a certificate of attendance from AMAD Tech.