Introduction
AC
& DC power, Voltage, Current, Real and Reactive power, Power factor. Typical
power distribution diagram, Standard symbols and NEMA device
classification. How to read Electrical drawings (Power &
Control), Detailed explanation (How to interpret) control schematics
for, DOL Starter, Star/Delta Starter, Forward Reverse Starter,
Auto-Manual Starter for Motor Feeders.
Generator
(LT to HT and KW to MW)
Active
& Reactive Power Sharing, Modes of Control; Droop Control,
Constant Power, Isochronous mode. Parallel operation, synchronizing
& methods of synchronizing, Protection for Generators.
Excitation
Systems
AVR,
AVR set points and adjustment, AVR Trouble shooting and fault
finding in AVR.
Motor
Types
of motors, starting methods, starter module, contactor, bimetal
relay & setting of bimetal relay, trouble shooting.
Transformer
Rating
specification, Vector Group, Parallel operation, Cooling methods,
Tap changer.
Cables
Types,
Size and number of cores; cable selection criteria.
Fuses
Selection
criteria for power and control fuses, grading of power and control
fuses.
Battery
& Battery Charger
Lead
acid and Nickel cadmium; Voltage and AHR Ratings; Boost charging and
trickle charging rates; Battery maintenance; Battery charger
circuits.
Instrument
Transformers
CT's,
PT's, Rating, specification, Transformers basic selection,
application.
Instruments
for measurements
Insulation
tester (megger); Multimeter; Clip-on meter; AVO meter; single /
Three phase variac.
Fault
finding in electrical circuit
Power
and control circuits.
Human
Safety
Reasons
for electric shock hazards & its Prevention.
Earthing
of Electrical System
Switchyard
grounding grid design, Earthing in LV & MV systems, Bonding,
"clean " Earth.
