PGCIL Field Engineer & DT study plan

Build a one-page formula sheet covering DC and AC single-phase/three-phase circuit relations (RMS, average, form factor, power factor, series-parallel reduction) and solve 30 numericals against it without consulting the source text.

Derive and apply the star-delta and delta-star transformation to at least 8 mixed resistive networks, checking each answer by an independent method such as mesh analysis.

Solve 15 problems on transient behaviour of RC and RL circuits (time constant, charging and discharging curves) and write down in your own words why the time constant has units of seconds.

Compute power factor correction capacitor ratings for 6 industrial load cases and state the resulting reduction in line current for each.

Classify 20 worked problems as concept, calculation or trap type, and note the single most common mistake you made in each category.

Solve 20 numericals on magnetic circuits (reluctance, MMF, flux density, B-H curve, hysteresis and eddy current loss separation) and identify which quantity is held constant in each case.

Work through 15 single-phase and three-phase transformer problems covering equivalent circuit referral, voltage regulation, efficiency at specified load fractions, and all-day efficiency, stating assumptions explicitly.

Solve 10 problems on three-phase power measurement using the two-wattmeter method, including the power factor inference from the two readings and the sign convention when one reading is negative.

Answer 25 short conceptual questions on electrical materials, earthing, and safety clearances in your own words, then verify each against a standard reference and correct the wrong ones.

Re-attempt every week-1 problem you got wrong and record whether the error was conceptual, arithmetic or misreading.

Compute per-unit values for a 3-bus network given base MVA and base kV, and convert all line and transformer impedances to a common base without arithmetic slips.

Perform load flow by Gauss-Seidel iteration on a 3-bus system for at least 4 iterations and state the convergence behaviour and the role of the slack bus.

Solve 12 symmetrical fault current problems (three-phase fault) using Thevenin equivalents and per-unit, and convert results back to actual amperes at the faulted bus.

Explain in writing why per-unit quantities on either side of a transformer are unchanged by referral, using a numerical example.

Draw the sequence networks for a simple generator-transformer-line system and label the zero-sequence path for a delta-star earthed transformer.

Compute unsymmetrical fault currents for single line-to-ground and line-to-line faults using sequence components, and verify one case by superposition of sequence networks.

Solve 10 problems on stability basics: swing equation, critical clearing angle, and equal-area criterion for a single machine on an infinite bus.

Select and set overcurrent and earth-fault relay pickup and time-multiplier values for a two-stage radial feeder, and justify the coordination margin between stages.

Explain the operating principle of a differential protection scheme for a transformer, including why harmonic restraint is needed during magnetising inrush.

Compare the arc-quenching behaviour of an air-blast and an SF6 circuit breaker and list the ratings that must be checked when specifying a breaker for a given bus.

Draw and explain the circuits for a single-phase fully controlled bridge with resistive and inductive loads, and derive the average output voltage as a function of firing angle for both cases.

Solve 12 numericals on controlled rectifiers, choppers and inverters, computing RMS and average output voltage, ripple factor and device utilisation.

Explain commutation in a thyristor circuit, distinguish natural from forced commutation, and identify which converter topologies require forced commutation.

Describe the working of a PWM inverter and state how switching frequency and modulation index trade off against harmonic content and switching loss.

Match 8 motor-load applications to a suitable drive type (V/f control, vector control, DC chopper drive) and justify each choice in two sentences.

Solve 15 induction motor problems: slip, rotor frequency, torque-slip relation, starting torque ratio, and efficiency, and identify which approximations you used.

Explain the effect of a broken rotor bar and of a single-phasing supply on induction motor behaviour, and state the protective relays that detect each.

Compute sag and tension for a transmission line conductor at two temperatures using the parabolic approximation, and state the assumptions that break down at high spans.

Compare the electrical and mechanical design requirements of an outdoor substation, listing clearances, busbar arrangements and the purpose of each switchyard component.

Explain the difference between dielectric loss, sheath loss and core loss in cables and transformers, and identify which dominates under which operating condition.

Solve 20 aptitude questions under a 30-minute timer covering ratios, time-work, averages, percentages, and series completion, and log time spent per question.

Solve 10 verbal reasoning sets (syllogisms, seating arrangement, blood relations) and write down the rule you used for each.

Answer 20 English questions on error spotting, sentence improvement and cloze passages, and record every grammar rule you got wrong.

Explain the working of a current transformer and a potential transformer for metering and protection, including the meaning of burden, ratio error and phase error.

Describe the function of a PID controller in a closed-loop process and state what happens to response and stability as each gain is increased.

Take two full-length timed mock tests under exam conditions and score every section separately to expose the weakest domain.

Review every wrong answer from both mocks and write the correct reasoning in one or two sentences each, without copying the given solution.

Update your current-affairs notes on recent developments in the Indian power sector, covering transmission capacity additions, renewable integration and grid-operator initiatives, and verify each fact against an official source.

Re-solve 20 previously missed numericals from weeks 1 to 6 and confirm each answer by a second method.

Build a final revision sheet of the 25 facts and formulas you are most likely to forget, and recite it from memory once.