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Kerala PSC has invited applications from electrical engineering graduates below 36 years towards the Assistant Electrical Inspector in November 2020. This post is considered as one of the highly desired technical posts in Kerala State services. Selected candidates will be posted in Gazetted rank level in the pay scale of Rs. 39500-Rs. 83000. The last recruitment was in 2016, and 93 candidates got the advice memo from that rank list. Here we are discussing the Kerala PSC Assistant Electrical inspector syllabus in detail. The exam will have 100 questions fo 01 hours 15 minutes, and fortunately, all these questions will be from technical topics only.
Kerala PSC Assistant Electrical Inspector Syllabus
The latest syllabus for the Assistant Electrical Inspector is published by the Kerala PSC. According to the latest updates, PSC has subsequently removed the General Awareness, Numerical Ability & Reasoning, and Language section from all technical papers. So the Assistant Electrical Inspector question paper would have only technical questions making it easier for the engineering graduates. Let’s check the Kerala PSC Assistant Electrical Inspector Syllabus.
Kirchoff’s laws – maximum power transfer theorem. Star/delta transformation. Energy stored in a capacitor and inductor. Analysis of coupled circuits – dot polarity convention – sinusoidal steady state analysis of coupled circuits. Generation of alternating voltages and currents – rms value, average value, peak factor, form factor. AC through series R, L, C circuit – series resonance- resonant power – bandwidth. Resonance in parallel circuits.
Absolute and relative permeability of a medium Magnetic field strength- magnetic potential. Relation between magnetism and electricity – Series and parallel magnetic circuits with composite materials. Faraday’s laws of electromagnetic induction- Lenz’s law – statically and dynamically induced emf.
3. DC Generators
Constructional details, working principle – types of dc generators – emf equation – power stages – condition for maximum efficiency. DC motor – armature control and field control. Single phase transformer – working principle, equivalent circuit, losses in a transformer, condition for maximum efficiency. Three phase transformer construction- difference between power transformer and distribution transformer. Alternators- constructional details –Synchronous motor – starting methods – synchronous condenser. Three phase induction motor – working principle, constructional details – slip, torque and current equations – torque- speed curve.
4. Digital Electronics
Number Systems and Codes: Binary, Octal and hexadecimal conversions- ASCII code, Excess -3 code, Gray code. Combinational circuits – Adders – Full adder and half adder. Multiplexers- Demultiplexers. Flipflops – registers – counters. Digital – to – Analogue and Analogue-to-Digital conversion. Microprocessors – Internal architecture of 8085 microprocessor–Functional block diagram Instruction set – Addressing modes – Classification of instructions – Status flags. Machine cycles and T states – Fetch and execute cycles- Timing diagram.
5. Power Systems
Line parameters -resistance- inductance and capacitance. Insulators –string efficiency – corona. Circuit breakers – rating- SF6 circuit breaker. Relays – types. Per unit quantities- symmetrical components – symmetrical and unsymmetrical fault. Power system stability – steady state, dynamic and transient stability-power angle curve.
6. Control Systems- (10 marks)
Transfer function of LTI systems – block diagram reduction – Signal flow graph – Mason’s gain formula – Type and Order of the systems- Characteristic equation Time domain specifications of transient and steady state responses- Impulse and Step responses of first order and second order systems. Static error coefficient type 0,1,2 systems. Routh’s stability criterion. Frequency domain specifications. Polar plot and Bode plot – concepts of gain margin and phase margin- stability analysis
7. Power Electronics
SCR- Structure, Static characteristics. Fully controlled and half controlled bridge rectifier with R, RL and RLE loads. Voltage Source Inverters– 1-phase half-bridge & full bridge inverter with R and RL loads – Pulse width modulation. Single quadrant, Two quadrant and Four quadrant chopper. Operational Amplifiers – fundamental differential amplifier – Modes of Operation. Properties of ideal and practical Op-amp – gain, CMRR and slew rate.
8. Measurements and Instrumentation
Measurement standards – errors – Types of Errors. Classification of instruments, secondary instruments–indicating, integrating and recording. Ammeters and voltmeters – moving coil, moving iron. Measurement of power: Dynamometer type wattmeter –Construction and working – 3- phase power measurement. Measurement of energy – Single phase energy meter – construction and working. Digital Energy meters -Time of Day(TOD) meters. Oscilloscopes- principle of operation of general purpose CRO-basics of vertical and horizontal deflection system.
9. Signals and Systems
Classification of signals – Elementary signals- Basic operations on continuous time and discrete time signals. Concept of systems – Classification of systems- Properties of systems – Time invariance- Linearity -Causality – Memory – Stability. Sampling process – Impulse train sampling – sampling theorem- Aliasing effect. Zero order and First order hold circuits.
General classification- LVDT- angular displacement transducers- hall effect transducers. Batteries – Primary cells– secondary cells- battery ratings- grouping of cells. Wiring – systems of wiring- rules for domestic wiring. Earthing- types of earthing – rules for earthing. Illumination – Laws of illumination. Electric lamps –
Download Kerala PSC Assistant Electrical Inspector Syllabus PDF
Candidates can download the syllabus PDF from the link below.
The previous year pattern for the Assistant Electrical Inspector recruitment exam is:
|Topics||Number of Questions|
|Signals and Systems||2|
|Electrical Measurements and Instruments||6|
|Illumination and Traction||4|
Among them, 40 questions were numerical and the remaining 60 were theoretical questions.
- Previous Year Cut-off Score: 51.33
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