Download COLLEGE OF ENGINEERING INSTITUTION OF ENGINEERS

COLLEGE OF ENGINEERING
INSTITUTION OF ENGINEERS, SRILANKA
TRAINING STANDARDS
FOR
ADVANCED DIPLOMA IN ELECTRICAL ENGINEERING
COLLEGE OF ENGINEERING
INSTITUTION OF ENGINEERS, SRILANKA
TRAINING STANDARD FOR ADVANCED DIPLOMA IN ELECTRICAL ENGINEERING
CONTENTS
No
Description
Page
01
Power transmission
01
02
Overhead power distribution
02
03
Underground power distribution
03
04
Electrical installations
04
05
Power protection
04
06
Utilization of power
05
07
Power measurements
05
08
Generation of hydro power
06
09
Generation of thermal power
07
10
Generation of diesel power
08
11
Auxiliary power systems
09
12
Manufacture of transformers
10
13
Maintenance of transformers
10
14
Maintenance of storage batteries, rectifiers and converters
11
15
Maintenance of motors
11
16
Maintenance of lifts
12
17
Automotive electrical system
12
01. Power transmission
Familiarize with the Sri Lanka Electricity Act and its amendments
Familiarize with preliminary work on transmission lines (choice of route, route surveys, profile surveys,
drawing of profiles, location of towers, making of sag templates, use of sag charts)
Acquaint with line of clearances, mechanical loading of conductors, line supports and earthing of lines
Acquaint with specifications for cross-arms, insulators, conductors, earth wire and earthing
Acquaint with insulating levels and insulation co-ordination near sub-stations
Familiarize with issuing of notices to land owners under the electricity act, objections and settlement of
same
Study preliminary survey, profile surveys and pegging out of transmission lines
Familiarize with reasons for deviations of routes
Familiarize with ordering, transporting and storing of materials
Acquaint with methods and techniques adopted in handling materials
Acquaint with management of labour
Familiarize with progress charts and reports
Familiarize with methods of reporting programmes to higher authorities
Familiarize with assembly and setting out of templates
Acquaint with excavating, stub setting, concreting and back filling
Identify types of foundations
Familiarize with fixing of cross-arms, insulators and accessories
Observe techniques and equipment used for drawing of earth wire and conductors and tensioning same
Acquaint with safety precautions for workers and materials
Familiarize with the methods used in earthing of towers
Assist in measurement of clearance and tower foot resistance
Familiarize with different types and sizes of towers, insulators, conductors and earth wire
Identify and inspect joints, clamps, vibration dampers and other line accessories
01
Acquaint with installation of line equipment such as isolators, gantries, air-break switches etc.
Familiarize with procedures and techniques used in testing and commissioning of transmission lines
Familiarize with equipment used in testing and commissioning of transmission lines
02. Overhead power distribution
Acquaint with choice of line routes and substation sites
Familiarize with issuing of notices to land owners under the electricity act, objections and settlement
Acquaint with preliminary routes, profile surveys pegging out of line and sub- station layout
Familiarize with spans, clearances, strength of support for conductors and earthing of lines
Acquaint with regulations framed under the electricity act
Familiarize with the types of line supports and their specifications
Acquaint with organization, methods and techniques used in erecting poles and struts
Familiarize in burying and fixing of stays, fixing of cross arms and insulators, binding of conductors etc.
Acquaint with stringing of earth wires and conductors
Acquaint with tensioning and fixing of earth wire and conductors
Familiarize in earthing of lines and all metal components and uses of earth electrodes
Acquaint with different types of line materials, accessories, tools and equipment used in erection
Prepare bill of quantities of materials per unit length of line at different voltages using different types of
line supports and conductors
Acquaint with various tests carried out prior to commissioning of lines and equipment and
commissioning of same
Familiarize with allocation of work according to skill and temperament
Estimate and cost materials requirement for a particular assignment
Acquaint with layout of different types of sub stations
Familiarize with installation of different types of oil circuit breakers, air circuit breakers, drop out
switches, lightning arresters (surge diverters) transformers, bus bars, jumpers etc.
02
Familiarize with installation of supply cables and overhead lines to consumer panels from distribution
lines.
Familiarize with installation of meters and metering equipment
Familiarize with different methods of burying earth electrodes and improving of earth resistance
Familiarize with accessories, tools and equipment used in construction work
Familiarize with bill of quantities of materials and equipment used in different types of sub stations of
different voltages and ratings
Acquaint with techniques and equipment used in testing prior to commissioning of same
03. Underground power distribution
Acquaint with different types of HT and LT underground power distribution systems and sketch the line
diagram of a typical underground power distribution system
Familiarize with choice of routs, substation sites and distribution points
Familiarize with the procedures adopted in clearing way and acquisition of substation sites.
Familiarize with rules under the electricity act and local authorities on matters pertaining to
underground gas and water mains etc.
Identify different types of HT and LT cables according to their design, specifications and standards
Familiarize with cable laying methods and techniques adopted and equipment used at different stages
such as in trenching, laying and closing
Familiarize with cable joining such as straight through, tack joints, termination in helmet box, tier type
box)
Identify type of faults occurring in cables and methods of protection
Familiarize with techniques adopted and equipment used for testing of cables prior to commissioning
and fault location
Familiarize with choice of main equipment and auxiliaries (transformers, switch gears, bus-bars, feeder
pillars) in relation to their types and ratings such as normal ratings, overload capacity and fault capacity
Familiarize with interpretation and application of the standards to equipment used in an underground
system
Familiarize with protection schemes and devices employed to protect equipment (remote control
systems and indicating equipment)
03
Familiarize with operation of the system as a whole (control of voltage and power)
Familiarize with routing maintenance and repairs
Acquaint with operational safety rules and understand the nature of the hazards of mal operation and
steps taken in such instances
04. Electrical installation
Identify the types and sizes of cables (connectors, conduits, trunking etc.)
Familiarize with types of electrical testing and measuring instruments and their uses
Familiarize with various types of electrical installations, electrical equipment and their layouts and
prepare layout plan of a typical electrical installation
Familiarize with the interpretation of layout plans, circuit diagrams and schematic diagrams
Select the equipment required for a particular application
Acquaint with the use of appropriate type and size of wires or cables, connectors and conduits
Cut, bend, form and thread rigid and flexible conduits
Familiarize with installation and wiring of electrical equipment (switch gear, circuit breakers, meters
etc.)
Familiarize with testing procedures for electrical installations
Attend to service wiring for lighting and ventilation
Check the installations for conformity with the I.E.E. and Sri Lanka Electricity Act and Regulations
Familiarize with earthing and protection systems against over current, earth fault, lightning and special
measures and procedures taken in hazardous situations
Familiarize with testing and commissioning of equipment, plant and machinery, localizing of fault and
operations and maintenance
05. Power protection
Familiarize with the methods adopted in protection of AC and DC circuits
Acquaint with the basic control systems used in protection
Familiarize with relays, trip switches, cut-out circuits, lightning protections etc.
04
Acquaint with the schematic diagrams, line diagrams, circuit diagrams relative to protection
Familiarize with power generator protection methods (over load, winding faults, unbalanced current,
earth faults etc.)
Familiarize with transformer protection methods (over load, winding faults, earth fault, line fault etc.)
Familiarize with protection of transmission lines (lightning protection, earth fault, line fault etc.)
Familiarize with methods adopted for protection against transmission line breakage by falling of trees
etc.
Familiarize with the earth leakage protection used for domestic purposes both current and voltage
operated types (RCCB/ELCB)
Familiarize with protection methods used in electrically operated machines
Familiarize with rules regarding electrical power protection methods
Acquaint with the safety precautions and first aid methods
Acquaint with methods adopted in fire prevention and fire fighting
Acquaint with safety regulations
06. Utilization of power
Acquaint with installation drawings and specifications of equipment and wiring
Familiarize with planning and layout of schemes for lighting power
Attend to planning and layout work for interior and exterior lighting such as home lighting, street
lighting, display lighting, flood lighting and decorative illuminations
Familiarize with the different types of fittings, equipment, their characteristics, places they are used and
conditions under which they are used
Acquaint with wiring regulations
Acquaint with selection of fuses, circuit breaker ratings, cable sizes etc. for different loads
07. Power measurements
Familiarize with electrical power measurement circuits and techniques
Familiarize with measuring instruments and meters such as ammeter, volt meter, maximum demand
indicator etc.
Acquaint with meter calibration test bench
05
Acquaint with the working system and types of meters (moving coil, moving iron, induction type etc.)
Familiarize with wiring diagrams, connecting methods and markings used
Calibrate the meters using calibration bench
08. Generation of hydro power
Understand the physical layout, organization structure, stores facilities and procedures in the hydro
power station
Identify potential hazards, safety precautions and safe practices adopted in the hydro power station
Identify the feeding arrangement from supply reservoir, diversion dam inclusive of surge chamber and
valve house up to the turbine inlet valve
Inspect and identify the type of turbine, its components and specific purpose
Acquaint with the turbine governor and runner arrangement and other safety devices
Acquire competence in the operation of pressure releasing valves and breaking devices
Familiarize with the operation of the water discharge system
Familiarize with the bearing arrangement of the generation assembly and the supply of lubrication oil
Acquaint with cleaning and cooling of lubricants
Identify and locate the cooling water system and components (pumping, filtering, storage and
utilization)
Acquaint with of cooling water
Acquaint with the generator arrangements (physical and electrical) excitation, cooling, earthing systems
and safety precautions (including fire protection)
Familiarize with the A.C. and D.C. power supply systems
Identify the auxiliary components and power supply arrangements to them
Acquire competence in the instrumentation and remote control facilities and the various protective
devices of the generator
Familiarize with the switching arrangements and switch board components such as circuit breakers, busbars, instruments, transformers etc.
Familiarize with the operating procedures of starting up sequence and building up load and other
conditions of the system
06
Familiarize with starting up, synchronizing loading and shutting down of generators
Acquaint with normal and emergency operations
Familiarize with the routine inspection and maintenance procedures and attend to maintenance work
Familiarize with break-down maintenance and repair work
Plot the daily load curve with regard to maximum demand and units generated
09. Generation of thermal power
Understand the physical layout, organization structure, stores facilities and procedures in the thermal
power station
Identify potential hazards, safety precautions and safe practices adopted in the thermal power station
Identify the types and the characteristics of the fuel oil used
Familiarize with storage, pumping, filtering and pre-heating of fuel oil
Familiarize with arrangements for combustion of fuel in the furnace
Familiarize with the flow of fuel oil and control of fuel oil flow
Acquaint with boiler, economizer, boiler feed pump and their auxiliaries and illustrate them in a
diagram
Familiarize with water supply and water treatment plant
Identify feed water equipment and understand their operation
Familiarize with boiler firing and heating of feed water
Identify flow arrangements of steam in boiler, turbine and condenser
Familiarize with the auxiliary utilization of steam
Familiarize with the intake, pumping and straining of cooling water
Study the use of cooling water for condensing of steam
Identify and locate the lubrication oil system and components
Acquaint with purification and cooling of lubricants
Familiarize with bearing arrangements of the generator assembly and the supply of the
lubrication oil
Identify and locate the draught system and flow control
07
Familiarize with super-heating, economizing and preheating arrangements
Acquaint with A.C. & D.C. power supply systems
Identify the auxiliary components and power supply arrangements to them
Acquire working knowledge of the instrumentation and remote control facilities of the
generator
Familiarize with the switching arrangements and switch board components (circuit breakers,
isolators, instrument transformers)
Study the operating procedures and starting up sequence of the system
Familiarize with starting up, synchronizing, loading and shutting down of the generator
Acquaint with the normal and emergency operations
Familiarize with the routine maintenance schedule and procedures (electrical and mechanical)
Attend to break-down maintenance (electrical and mechanical)
10. Generation of diesel power
Understand the physical layout, organization structure, stores facilities and procedures in the diesel
power station
Identify potential hazards, safety precautions and safe practices adopted in the diesel power station
Acquaint with cylinder arrangement and firing order of the engine
Familiarize with storage, pumping and filtering of fuel oil
Acquaint with injectors and injector pumps
Familiarize with air intake system
Identify exhaust and charging arrangements
Acquaint with super-chargers and auxiliary system
Identify and locate the cooling water system
Familiarize with the supply, storage and operation of cooling water
08
Identify and locate the lubricating oil system and components
Acquaint with purification and cooling of lubricants
Familiarize with the bearing arrangements of the generator assembly and the supply of the
lubricating oil
Acquaint with the generator arrangements (excitation, cooling, earthing and safety precautions
including fire protection)
Familiarize with AC and DC power systems
Identify auxiliary components and power supply arrangements to them
Acquire a working knowledge in the instrumentation and remote control facilities of the
generator
Familiarize with the switch board components and instrument transformers etc.
Study the operating procedures and starting up sequence of the system
Familiarize with starting up, synchronizing, loading and shutting-down of the generator
Acquaint with normal and emergency operations
Familiarize with routine maintenance schedules and procedures (electrical and mechanical)
Attend to break-down maintenance (electrical and mechanical)
11. Auxiliary power systems
Familiarize with charging float operation and equalizing of batteries
Perform associated measurements with regard to variation of specific gravity during charging, testing
and testing of capacity
Familiarize with installation and commissioning of batteries
Familiarize with circuits and principles of operation of battery chargers, float chargers and battery
eliminators
Familiarize with output characteristics of D.C. power systems
Familiarize with method of regulation of output voltage
Familiarize with claims and protective devices, their purpose and operation and fault location
Perform measurements of hum level, regulation and efficiency of power system
09
12. Manufacture of transformers
Understand the physical layout, organization structure and procedures in the transformer
manufacturing work shop
Identify potential hazards, safety precautions and safe practices
Identify materials, tools and machinery required for manufacture of transformers and describe their
applications
Familiarize with various processes in the construction and assembly of a transformer.
Familiarize with techniques involved in the construction of tank and conservator and study the material
requirement s, cutting and bending of sheet metal, drilling of holes, welding, preparation of the surface,
painting etc.
Familiarize with the cutting of laminations, assembly of laminations and mounting of the assembled
laminations
Study the drawings and familiarize with the processes involved in the production of each section of the
transformer and its final assembly
Familiarize with of hand and machine winding of high voltage and low voltage windings
Familiarize with use of insulators, spacers as per design and assembly of the tap-changer gear in making
connections to the windings
Familiarize with the procedure in the drying of the transformer, impregnation for dry types of
transformers and the procedure of filling to the tank
Familiarize with routine tests on transformers (polarity, insulation, turns-ratio, no-load test, resistance
of windings, load tests on temperature rise, induced over-voltage test, etc.)
Study reports and methods used in special tests and why such tests are necessary (impulse voltage,
short circuit)
Familiarize with standards for manufacture of the transformers and quality control procedure used at
different stages in the manufacture
13. Maintenance of transformers
Familiarize with the construction and characteristics of different types of transformers such as power
transformers, distribution transformers, welding transformers etc. and specifications as regard to their
construction, performance and efficiency and installation of transformers
Carry out transformer tests such as ratio test, efficiency test etc.
Test samples of transformer oil on relevant specifications and familiarize with the operation of the
filtering plant
10
Identify common faults and their causes and familiarize with detection of fault and clearing of same
Familiarize with testing and commissioning of transformers
Acquaint with the protective devices of transformers, their locations and functions
14. Maintenance of storage batteries, rectifiers and converters
Identify different types of batteries, their construction and applications (lead acid, nickel iron, portable
and stationary batteries)
Study of charging, float operation and equalizing of batteries and perform associated measurements
with regard to variation of specific gravity during charging and testing of capacity
Familiarize with installation, care, maintenance and charging of batteries
Familiarize with the circuits and principles of operation of battery chargers and battery eliminators
Familiarize with output characteristics of D.C. power systems
Familiarize with method of regulation of output voltage
Familiarize with protective devices, their purpose, operation and fault location
Perform measurement of hum level, regulation and efficiency of power systems
Acquaint with construction, operation, control, maintenance and protection of charging devices
Acquaint with keeping records with regard to maintenance, care and charging of batteries
Familiarize with constructional features, operation and use of rectifiers (mercury arc, semi conductor
rectifiers and rotary converters)
Acquaint with common defects, care and maintenance of batteries
15. Maintenance of Motors
Familiarize with different types of motors and their drives, couplings and specifications
Identify materials (conductors, insulators, and varnishes), tools, equipment and testing instruments
required for maintenance work
Identify techniques used in repairing motors (striping, insulating, re-winding, baking etc.)
Familiarize with the application of motors in fixed installations, in traction, in portable tools and in
special circumstances
Familiarize with the methods of starting and control of motors
11
Familiarize with the installation, testing and the maintenance of motors
Familiarize with the repairing of motors and testing of repaired motors
16. Maintenance of lifts
Identify mechanism of operation of different types of lifts for transport of passengers and goods (box
lifts and escalators)
Familiarize with control, protection and safety requirements and the relevant specifications
Familiarize with the devices (electrical and mechanical) used in the above and the circuits involved
17. Automotive electrical system
Orientation to electrical repair shop
Understand the physical layout, organization structure, stores facilities and procedures in the electrical
shop
Identify potential hazards, safety precautions and safe practices adopted in the electrical shop.
Identify materials, tools and equipment required for electrical work and describe their applications
Electrical repairs
Familiarize with installation, care, maintenance, testing and charging of batteries
Familiarize with the circuits and principles of operation of battery chargers
Familiarize with the charging system and testing and repair of the same (alternator, dynamo,
conventional voltage regulator / cutout, voltage regulators for alternators)
Familiarize with the starter motors and testing and repair of same
Familiarize with ignition system and its fault diagnosis and repairs (coil ignition, electronic contactless
ignition and transistor assisted ignition systems)
Familiarize with fuel injection systems
Familiarize with lighting and signaling system (head lights, turn signals, break lights, interior lights,
audible warning systems and electronic signals)
12
Familiarize with electrical utilities (air conditioners, windscreen wipers, heaters, blowers, power
shutters)
Familiarize with instrumentation
Familiarize with safety aspects of electrical system (fuses, MCB’s, relays etc.)
13