Electrical engineering from the load schedule to the finished panel, free and complete: electrical design for loads, cables and breakers, ETAP for load flow, short circuit, protection and arc flash, motor control and control panel design and building, with notes, quizzes and an optional verifiable certificate.
Free course for electrical beginners: read PLC wiring diagrams, then build, cool and test a UL 508A control panel. The certificate is optional and paid.
Name every part of a PLC control panel and what UL 508A covers
Choose relays, contactors, overloads, transformers and terminal blocks, and state the SCCR
Read a PLC wiring diagram and wire 2-wire and 3-wire control
Free ETAP course for electrical engineers: load flow, short circuit, protection and arc flash studies. Learning is free; the certificate is optional and paid.
Model a network in ETAP with nameplate data and run load flow
Size cables and transformers and use tap changers
Run IEC 60909 and ANSI short circuit and select breakers by device duty
Free electrical design course for engineers: estimate loads, size cables and breakers, draw single-line diagrams. The certificate is optional and paid.
Revise AC, DC, star, delta, power and power factor
Estimate loads with demand, diversity and load factors and build a load schedule
Size capacitor banks and draw panel single-line diagrams
The electrical basics every technician needs, in the order you use them: charge, voltage, current and resistance; Ohm's and Kirchhoff's laws; AC and DC, single and three phase; power, energy and power factor; the multimeter and CAT ratings; cables, fuses, breakers, earthing and RCDs; IEC and NEMA symbols and schematics; relays, contactors and motors; safe isolation; and a fault-finding walkthrough.
Explain voltage, current, resistance and charge, and use Ohm's law
Solve series and parallel circuits and check readings with Kirchhoff's laws
Work with AC, RMS, single-phase and three-phase supplies
Protection relays from the CT to the commissioning record: faults and zones, CTs and VTs, fuses and IDMT curves, overcurrent and earth-fault grading by hand, transformer differential and REF, distance, motor and generator protection, numerical relays and COMTRADE, then primary and secondary injection, trip-circuit and stability tests, and maintenance.
Calculate fault currents from fault levels and draw overlapping zones of protection
Check a protection CT's class and knee point against the voltage its duty needs
Calculate IEC and IEEE inverse-time trip times and read fuse and LSIG trip-unit curves
Work safely on and near electrical equipment: how shock and arc flash injure, risk assessment, the electrically safe work condition, lockout and tagout, approach boundaries, arc-flash incident energy, PPE categories and labels, energised work permits, live-dead-live testing, and how national rules, with India's CEA 2023 regulations as the worked example, add duties such as an Electrical Safety Officer.
Work out a body current from voltage and resistance and explain shock, arc flash and arc blast
Write a task-based electrical risk assessment using the hierarchy of controls
Set out an electrically safe work condition and write a lockout procedure with a group lockout
Run, read and record the field tests that keep transformers, breakers, cables, motors and batteries in service: insulation resistance and PI, winding resistance, turns ratio and vector group, tan delta and SFRA, oil and DGA, breaker timing and contact resistance, switchgear thermography, VLF cable tests, motor tests, earth resistance and battery capacity, then turn the results into a maintenance plan.
Choose a maintenance strategy for each asset and set test intervals from the P-F interval and condition
Run insulation resistance tests and calculate DAR and PI with temperature correction
Test winding resistance, turns ratio, vector group and excitation current on a transformer
Design an earthing system and lightning protection that pass inspection: TN, TT and IT systems, soil resistivity by the Wenner method, rod, plate and strip electrodes to IS 3043 and BS 7430, conductor sizing with the adiabatic equation, IEEE 80 touch and step voltage and grid design, bonding, the IEC 62305 risk assessment, air terminals and the rolling sphere, SPD selection, special cases and testing.
Identify TN-S, TN-C-S, TT and IT systems and explain how each clears an earth fault
Turn a Wenner survey into a design soil resistivity
Calculate rod, pipe, plate and strip electrodes to IS 3043 and combine rods with the BS 7430 method
Turn a set of electrical drawings into a priced bill of quantities: read the drawings and specification, take off points, cables by route length, containment, boards, luminaires, earthing and lightning protection, apply labour units and wastage, build rates from material, labour, plant, overheads and margin, lay out the BOQ in Excel, compare tenders, and value variations through to the final account.
Explain estimate types and accuracy classes, and where the estimator sits in a tender
Read drawings, schedules and specifications for the items that drive quantity and cost
Take off final circuits by points and wiring, and cables and feeders by route length with allowances
How a data centre and its critical MEP systems are proved before go-live: the commissioning process, OPR and basis of design, commissioning levels L1 to L5, FAT and SAT, electrical pre-functional tests, protection injection, UPS, battery, generator and ATS testing, load banks and heat load tests, chilled water flushing and hydro tests, liquid cooling, BMS and EPMS point-to-point checks, integrated systems testing, the issues log and handover.
Turn an OPR into measurable acceptance criteria and plan commissioning levels L0 to L5
Write test scripts with prerequisites, expected results, abort criteria and sign-offs
Witness a FAT, run L2 installation checks and a site acceptance test
The wiring regulations an electrical designer, inspector or site engineer works to every day, taught from the IEC 60364 method with BS 7671:2018+A4:2026 as the worked example: the structure of the standard, earthing arrangements, automatic disconnection and Zs, RCD types, overcurrent protection and selectivity, cable sizing with correction factors, voltage drop and the CPC check, selection and erection, AFDDs and SPDs, bathrooms, PV, EV charging and batteries, inspection and testing, certificates and condition reports, and Gulf utility rules.
Find the Part and regulation of BS 7671 or IEC 60364 that answers a design, installation or testing question
Identify TN-S, TN-C-S (PME and PNB), TT and IT supplies and record Ze, fault current and maximum demand
Check automatic disconnection with Zs and choose the right RCD type and rating for each circuit
The 2026 National Electrical Code (NFPA 70) for people who design and install: how the code is arranged, Article 110 working space and terminations, branch circuits and services, the new Article 120 load calculations for dwellings and commercial buildings, ampacity and voltage drop, overcurrent protection and taps, grounding and bonding, raceway and box fill, motors, transformers, hazardous locations, and PV, energy storage and EV charging.
Find any rule in NFPA 70 by chapter, article and section, and tell mandatory text from informational notes
Apply Article 110: listing instructions, termination temperatures, fault ratings and working space
Do a 2026 Article 120 load calculation for a dwelling and for a commercial building
Power quality for electrical engineers in plants, buildings, utilities and data centres: sags, swells, transients, flicker and unbalance; harmonics from drives, UPS, IT loads and inverters; THD, TDD, K-factor and resonance; IEEE 519-2022 limits at the point of common coupling and the IEC 61000 family; Class A measurement and Python analysis; reactors, detuned capacitor banks, passive and active filters, active front ends and multipulse drives; and a harmonic study in the free OpenDSS simulator.
Classify sags, swells, transients, flicker and unbalance and judge ride-through on ITIC and SEMI F47
Calculate THD, TDD, true RMS, true power factor, K-factor and neutral current from a spectrum
Predict the harmonics of six, twelve and eighteen pulse drives, UPS, IT loads and inverters
Diesel generating sets from the engine and alternator to the panel: ISO 8528 ratings, excitation and the AVR, governors and droop, DSE, ComAp, DEIF and Woodward controller concepts, automatic mains failure sequences and timers, transfer switches and neutral switching, synchronising and check-sync, kW and kVAr load sharing, multi-set and mains paralleling, generator protection by ANSI number, sizing and derating, commissioning, maintenance and troubleshooting, ending in an AMF and two-set synchronising scheme.
Rate a generating set under ISO 8528-1 and check a load profile against the 70 percent average limit
Explain brushless excitation, PMG and shunt AVR supplies, and estimate fault current from X''d
Calculate governor droop, no-load speed and magnetic pickup frequency, and choose droop or isochronous control
The electrical side of data centres, where the hiring is: the power path from grid to rack, tiers and redundancy, UPS and generators, the calculations, load flow, short-circuit and arc flash studies, PUE, monitoring, and what AI GPU racks change.
Trace data centre power from the utility to the rack
Compare N, N+1 and 2N redundancy and the Uptime Institute tiers
Calculate rack current, kVA and kW for single and three-phase feeds
A short, practical foundation in thermal imaging for plant work: what the camera actually measures and what it never sees, emissivity and reflected apparent temperature, loaded electrical surveys and three-phase comparison, motors and bearings and couplings, building envelope and lagging and moisture, solar PV hot cells and substrings, and the route survey and written finding that turn a pretty picture into a work order.
Set emissivity and reflected apparent temperature, and recognise when a shiny surface has made a reading worthless
Plan a loaded electrical survey, record load and ambient with every image, and work safely with an authorised electrician
Classify a hot joint by comparing it with the same connection on the other two phases
Design a 33/11 kV or 132/33 kV substation on paper: substation types, single-line diagrams and bus schemes, equipment ratings, fault levels, BIL and creepage, clearances in plan and section, busbar sizing, earthing and shielding, battery and charger sizing, control panels and SCADA signals, cables and lighting, civil interfaces, and energisation.
Choose between AIS, GIS and hybrid substations for a site, and draw the single-line diagram
Compare single, sectionalised, main and transfer, double bus, breaker-and-a-half and ring schemes
Rate breakers, disconnectors, CTs, VTs, surge arresters and transformers from the fault level
Work safely and competently with electrical and instrument equipment where gas, vapour or dust can explode: gas groups and temperature classes, zones and classification drawings, EPLs and Ex marking, Ex d, e, n, i, p, m, q and t, the intrinsic safety entity calculation, cable glands, IEC 60079-17 inspection, and permits and gas testing. It covers the knowledge base of CompEx units Ex01 to Ex04.
Place a gas or dust in its group and choose a temperature class below its ignition temperature
Read zones 0, 1, 2 and 20, 21, 22 and question a classification drawing
Decode ATEX and IECEx markings and match the EPL to the zone
Energy management and energy auditing for plants and buildings: energy units and the electricity bill, the ISO 50001 energy management system clause by clause, energy reviews, EnPIs and baselines by regression and CUSUM, metering and IPMVP measurement and verification, the audit method and instruments, then motors, pumps and fans, compressed air, chillers and lighting, boilers and steam, and project economics in cost units.
Convert electricity and fuel into GJ and toe and calculate specific energy consumption
Read an industrial electricity bill and size power factor correction in kVAr
Build an ISO 50001 energy management system from context and policy to management review
Both. It starts from reading drawings and ends at testing a finished panel.
Do the electrical courses need a workshop?
No. Panel building and motor control are taught from real panels and drawings in the videos, with practice in free CAD and simulation tools; wiring on a real panel comes with the paid programme.
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