DDA JE Electrical Syllabus 2025, check full course here

Basic Electrical ENGG :: Election. Measurement, current, voltage, resistance, power and energy, their units, concepts of Om’s law. Circuit Law: Kirchoff’s law, solution to simple network problems, network theorems and their applications, electro-magnetism, concept of flux, EMF, reluctance, magnetic circuit. Electro-magnetic induction, self and mutual induction. AC fundamental, instantaneous, peak, RMS and average value of alternative waves, equation of sinusoidal wave form, simple chain and parallel AC. Circuit consisting of RL and C, resonance. Measurement and measurement tools, moving coils and moving iron areas and voltmeters, expansion of range, watt meter, multimeter, meger, basic electronics.

Electrical machines: The basic principle of DC Motors, generators, their characteristics, speed control and the onset of DC motors, loss and efficiency of DC machines. Synchronous machines, 3-phase EMF generations, armature reaction, voltage regulation, parallel operation of two alternators, synchronizing, early and apps of synchronous motors. 3-phase induction motor, rotating magnetic field, theory of operation, equivalent circuit, torque-motion characteristics, 3-phase induction motors, partial KW motors, 1-phase induction motors, AC series motor, 3-step induction motor’s start and speed control

General, transmission and delivery: Different types of power stations, load factor, diversity factors, demand factor, simple problems, generation costs, interconnection of power stations. Power factor improvement, different types of tariffs, types of defects, short circuit current for symmetrical defects. Switchgear- Rating of circuit breakers: the principle of extinction by oil and air, HRC fuses, protection, earth leakage, currently, Buchotgaz relay, merz-prince system generator and transformer system system, protection of feeders and simply bars. Lightning framers, various transmission and distribution systems, comparison of conductor content, efficiency for various systems. Use of electrical energy, light, electric heating, electric welding, electric drives, electric drives and motors.