Maharashtra HSC Electrical Technology (Vocational) study plan
Maharashtra HSC Electrical Technology (Vocational) · Give each week a clear focus.
8 weeks · About 7 hours per week
Basic Electrical Concepts and Fundamentals & Electrical Machines and Transformers
Derive and apply Ohm's law, series/parallel equivalent resistance, and power formulas to at least 20 numeric problems without reference notes
Explain the difference between AC and DC quantities, define RMS, average, peak and form factor, and compute each from a given waveform description
Draw and label the constructional parts of a single-phase transformer and state the function of core, windings, insulation and conservator
Calculate turns ratio, secondary voltage, and full-load currents for a single-phase transformer given kVA rating and voltages
Solve transformer efficiency and regulation problems at unity and 0.8 lagging power factor
Your checkpoint
A handwritten formula sheet plus 25 solved numericals covering Domain 1 and transformer basics, self-marked against a worked-answer key
Electrical Machines and Transformers
Explain the production of a rotating magnetic field from a three-phase supply and relate synchronous speed to supply frequency and pole count
Compare squirrel-cage and slip-ring induction motors on construction, starting torque, and application
Compute slip, rotor frequency, and starting current ratio for a given induction motor nameplate data set
Describe the working principle, EMF equation and voltage regulation check of a DC generator
List the losses in a DC machine and classify them as constant, variable, or stray
Your checkpoint
A one-page comparison table of DC shunt, DC series, three-phase induction and single-phase induction motors with application examples, plus 15 solved machine numericals
Electrical Materials and Wiring & Power Systems and Distribution
Classify conducting, insulating, and magnetic materials by property and name one practical use for each in wiring or machine construction
Select correct conductor size and insulation type for given load current, run length, and installation environment
Describe the layout of a low-voltage distribution system from transformer to consumer premises, naming each stage
Distinguish HT and LT supply, state typical voltage levels, and explain the role of a distribution substation
Explain why power factor matters to a distribution utility and list three methods of power factor improvement
Your checkpoint
A labelled single-line sketch from 11 kV feeder to a domestic consumer with conductor sizes, protection devices, and voltage levels annotated
Electrical Measurements and Instruments & Power Systems and Distribution
Describe the construction and working of a moving-coil and a moving-iron instrument and state which is used for AC and why
Extend the range of a voltmeter and an ammeter using series and shunt resistors and compute the required values
Explain the working of a dynamometer-type wattmeter and an induction energy meter, including the role of the braking magnet
Compute energy consumption in kWh and estimate a monthly bill from a meter reading for a mixed load
Interpret CT and PT ratios and compute primary current from a secondary reading
Your checkpoint
A closed-book 20-question self-test on instruments and metering, scored and error-logged with corrections written out
Electrical Installation and Maintenance & Electrical Safety, Codes and Standards
Plan a domestic wiring installation: count points, select circuit divisions, and choose MCB ratings for lighting and power circuits
Describe earthing systems (pipe, plate, and modern chemical earthing) and state the resistance value normally aimed for
Apply the principle of protection against electric shock: explain role of ELCB/RCCB, fuses, and MCB discrimination
State Indian Electricity Rules and IS code requirements for conductor colour code, minimum heights, and earth continuity
Outline a preventive maintenance schedule for a motor and a distribution board with the checks to be performed
Your checkpoint
A two-page installation and safety checklist for a two-room domestic wiring job, citing the specific rule or code clause for each check
Electrical Drawing and Estimation & Practical Skills and Workshop Practice
Read and interpret standard electrical symbols on a wiring diagram and convert a schematic into a wiring layout
Prepare a material estimate (quantity and cost) for a given lighting and power circuit from a simple drawing
Describe safe workshop practice for handling tools, ladders, and live-line work, including lockout and tagout steps
Explain the procedure for testing insulation resistance and earth continuity with a megger and record results in a test format
Demonstrate correct jointing and termination practice for stranded and solid conductors in written procedure form
Your checkpoint
A complete estimate sheet with quantities, unit rates, and total cost for a 10-point installation, plus a filled sample insulation-resistance test record
Basic Electronics and Control
Explain the operation of a PN junction diode in forward and reverse bias and sketch the V-I characteristic
Describe half-wave and full-wave rectifier circuits and compare ripple, efficiency, and component count
Explain the working of a BJT as a switch and as an amplifier, and identify cutoff, active, and saturation regions
Describe the construction and use of an SCR or triac in a simple power control application
Identify the function of a relay, contactor, and limit switch in a motor control circuit and draw a simple start-stop ladder
Your checkpoint
A hand-drawn set of four circuit sketches (rectifier, BJT switch, SCR control, DOL starter ladder) each annotated with component function and one operating condition
Basic Electrical Concepts and Fundamentals & Electrical Materials and Wiring & Electrical Machines and Transformers & Electrical Measurements and Instruments & Power Systems and Distribution & Electrical Installation and Maintenance & Electrical Safety, Codes and Standards & Electrical Drawing and Estimation & Basic Electronics and Control & Practical Skills and Workshop Practice
Revise all ten domains using the error logs from weeks 1 to 7, re-solving every previously wrong numerical
Complete two full-length timed mock papers under exam conditions and score them
Rewrite condensed notes for the five highest-weight domains into a single revision sheet
Identify the three weakest sub-topics from mock results and close each gap with targeted practice
Confirm recall of key code values, standard voltages, and safety limits without reference material
Your checkpoint
Two scored mock papers with a written gap-closure report listing each weak sub-topic, the action taken, and the final verified answer
Milestones
Week 2: Can state synchronous speed, slip, and transformer turns ratio correctly for five unseen numericals in under 15 minutes total
Week 4: Scores at least 70% on the closed-book instruments and metering self-test and has corrected every wrong item in writing
Week 6: Produces a costed estimate and a completed test record that another person could execute without asking a question
Week 8: Scores at least 60% on both timed mock papers with no repeated error from weeks 1 to 7