HPCL Vishakhapatnam Refinary Technician Electrical Syllabus
Syllabus for Technical/ Professional Knowledge – Maintenance Technician – Electrical

HPCL is going to Computer Based Test for the post of Assistant Process Technician, Assistant Boiler Technician, Assistant Fire & Safety Officer, Assistant Maintenance Technician (Electrical) on 5th May 2023.

Basic Electrical and Circuit Theory
(a) Ohm’s Law, Kirchhoff’s law, Series & Parallel Resistances, Energy Stored in Inductor and capacitor, Units of basic electrical quantities.
(b) The venin’s, Norton’s and Maximum power transfer theorems
(c) Form factor, Peak factor, Power and Power factor, Apparent, Active and reactive power, Relation between line voltage and phase voltage/ line current and phase current of star/ delta connected circuits.

Electrical Machines – I (DC machines and transformers)
(a) Construction and Principle of DC Generators, Lap & Wave Winding, EMF Equation, Compensation of Armature Reaction, Types of Motors, Armature Torque, Speed of DC Motors, Load Test, Swinburne’s Test, Application of DC Motors and DC Generators
(b) Battery Rating, Constant Current and Constant Voltage System – Trickle charging – Maintenance of Lead Acid Cell, Nickel Iron and Edison Batteries
(c) Working Principle – Construction, EMF Equation, Voltage Transformation Ratio of transformer, Transformer Rating – Problems, OC and SC Test – Regulation, Condition for Max Efficiency – All Day Efficiency

Electronic Devices and Circuits
Electrical Machines – II (AC Machines)
Measurements And Instruments
Digital Electronics
Transducers And Signal Conditioners
Generation, Transmission and Distribution
Microcontroller
Special Electrical Machines
Control of Electrical Machines
Programmable Logic Controller
Power Systems and Utilization of Electric Power
Electrical Estimation
Computer Hardware and Networks
Protection and Switch Gear
SCADA