PE Electrical study materials
PE Electrical study resources

PE Electrical study plan

PE Electrical · Give each week a clear focus.

8 weeks · About 8 hours per week

Week 1

Circuit Analysis

  • Convert balanced three-phase and ladder networks into per-unit and line/phase equivalents, computing voltage, current, and power in each representation.

  • Solve three-node AC networks by mesh and nodal analysis with complex impedances, then verify each result using superposition.

  • Reduce RLC networks to Thevenin and Norton equivalents and compute the steady-state AC response at a specified frequency.

  • Compute real, reactive, and apparent power and power factor for combined loads, then size the capacitor bank required to correct power factor to a target value.

Your checkpoint

Score at least 70% on a 25-question, 60-minute timed quiz covering per-unit conversion, three-phase equivalents, and power-factor correction.

Week 2

Circuit Analysis & Power System Analysis and Design

  • Build a per-unit model of a three-bus system, selecting a base power and base voltage and converting every impedance consistently.

  • Compute balanced three-phase fault current at a selected bus from the per-unit impedance network and convert to amperes.

  • Analyze step and switching transients in RL and RC circuits, sketching time-domain voltage and current waveforms with time constants labeled.

  • Decompose an unbalanced set of phase quantities into symmetrical components and reconstruct the phase quantities from sequence components.

Your checkpoint

Produce a fully worked three-bus per-unit fault study (base selection, impedance diagram, fault current in per unit and amperes) that self-checks to within 5% by two independent methods.

Week 3

Power System Analysis and Design

  • Classify each bus in a four-bus network as slack, PV, or PQ and list the known and unknown quantities before formulating the problem.

  • Formulate and carry out two Gauss-Seidel or Newton-Raphson iterations on a four-bus load flow, computing real and reactive power mismatch at each bus.

  • Compute line flows and line losses from solved bus voltages using the entries of the bus admittance matrix.

  • Solve single-line-to-ground and line-to-line faults through sequence networks, computing phase current magnitudes from the sequence currents.

  • Set up the swing equation for a single machine against an infinite bus and compute the critical clearing angle for a specified fault.

Your checkpoint

Complete a 20-problem timed load-flow and fault-analysis set in 90 minutes, plus a written error log identifying the root cause of every missed problem.

Week 4

Rotating Machines and Electromagnetic Devices

  • Compute synchronous reactance, voltage regulation, and efficiency of a synchronous generator from open-circuit and short-circuit test data.

  • Calculate slip, rotor frequency, and developed torque for an induction motor, and locate the operating point on its torque-speed curve.

  • Compute back EMF, armature current, and speed for a DC shunt motor at a changed load, and identify the effect of armature reaction.

  • Compare direct-on-line, autotransformer, and wye-delta starting by computing starting current and starting torque for each.

  • Determine synchronous speed, poles, and slip frequency for a given motor and explain how the rotating magnetic field is produced.

Your checkpoint

Score at least 75% on a 25-question, 60-minute timed rotating-machines quiz, with all machine-equivalent-circuit formulas condensed onto one page.

Week 5

Rotating Machines and Electromagnetic Devices & Transmission and Distribution

  • Analyze delta-wye and wye-delta transformer banks, computing line-to-phase ratios, phase shift, and per-unit impedance referred to either side.

  • Compute transformer voltage regulation and efficiency at a specified load and lagging power factor.

  • Calculate voltage drop and line losses on short and medium lines using the short-line and nominal-pi models.

  • Select a feeder conductor from ampacity and voltage-drop limits and compute the resulting drop at full load.

Your checkpoint

Build a single-page transformer-and-feeder calculation sheet and use it to solve 15 mixed problems in under 75 minutes.

Week 6

Transmission and Distribution

  • Compute per-unit series impedance and shunt admittance of a transmission line from conductor spacing and radius, and calculate surge impedance loading.

  • Size a shunt capacitor bank for voltage support and compute the resulting voltage rise at the bus.

  • Set overcurrent relay pickup and time-dial values to coordinate a main and feeder pair, then verify the coordination time interval.

  • Distinguish radial and looped distribution configurations and compute the impact of each on fault current and reliability.

  • Calculate sag and tension for a level span and relate conductor tension to tower loading.

Your checkpoint

Score at least 75% on a 20-question timed transmission-and-distribution set, plus a 10-line written summary of the relay settings you derived and why they coordinate.

Week 7

General Power Engineering

  • Compute demand load, feeder ampacity, and overcurrent protection for a small commercial service using standard demand-factor methods.

  • Compute grounding-electrode resistance and explain how step and touch potential drive grounding design decisions.

  • Calculate the number and layout of luminaires needed to reach a target illuminance using the lumen method.

  • Compute energy cost, demand charges, and power-factor penalties from a sample utility bill and identify the largest cost driver.

  • Explain arc-flash hazard boundaries, equipment labeling, and the role of short-circuit study results in safety planning.

Your checkpoint

Score at least 75% on a 25-question, 60-minute timed General Power Engineering quiz covering demand loads, grounding, illumination, and cost.

Week 8

General Power Engineering & Circuit Analysis & Rotating Machines and Electromagnetic Devices & Transmission and Distribution & Power System Analysis and Design

  • Build a one-page master formula sheet covering per-unit conversion, sequence networks, machine test formulas, and line models, then use it on all practice work.

  • Take two full-length timed mixed-domain mock exams under exam conditions and score each exam by domain.

  • Re-solve every missed mock-exam problem to the correct method and log the root cause of each miss as concept, arithmetic, or misread.

  • Drill 60 rapid conceptual questions in timed blocks to build pace and decision speed on qualitative items.

Your checkpoint

Achieve at least 70% overall on the second full-length mock exam with no domain scoring below 65%.

Milestones

Week 2: Can build a per-unit three-bus model and compute balanced fault current from it without notes, and has scored at least 70% on the week 1 quiz.

Week 4: Load-flow, fault, and rotating-machine quizzes all scored at 75% or better; error log shows fewer than five unresolved concept gaps.

Week 6: Can move from a network description to transformer, feeder, and relay settings in one pass; week 5 and 6 deliverables completed on time.

Week 8: Second full-length mock exam scored at 70% or higher overall with every domain at 65% or higher, and the formula sheet fits on one page.