Electrical Testing and Commissioning — BTEUP Electrical 5th Semester Syllabus 2026-27

Electrical Testing and Commissioning — What This Subject Is About

Before any electrical machine or installation is switched on for real use, it must be tested — and someone must take responsibility for saying it is safe to run. That is commissioning. This subject teaches you to follow standard safety procedures in testing and commissioning of electrical equipment. It is Program Elective-4, Option 1: you choose either this subject or Illumination Practices.

The five units run in the order the work actually happens: electrical safety and insulation first, then installation and erection (including the foundation for machinery), then testing and commissioning itself, then troubleshooting plans, and finally maintenance. Maintenance carries the highest weightage at 25%. As a practicum subject (L 1 – P 4) it has 12 practicals, so you learn the procedures by doing them.

Subject 5.4.1 (Program Elective-4, Practicum) • Total 100 Marks • 3 Credits • L 1 – P 4 • Choose this OR Illumination Practices • 5thth Semester — Electrical Engineering • Session 2026–27

What You Will Study

Unit – I: Electrical Safety and Insulation (03 Periods, 20%)

Do's and don'ts regarding safety in domestic electrical appliances as well for substation/ power station operators; Electrical safety in industry/power stations/ substations at the time of operation/ control/ maintenance; Fire detection alarm, fire-fighting equipment's, measuring insulation resistance by different methods such as i) Polarization, ii) Dielectric absorption, iii) Megger and to predict the condition of insulation; Reconditioning of insulation, insulating oil - properties of insulating oil, causes of deterioration of oil.

Unit – II: Installation & Erection Concept of foundation for installation of machinery (02 Periods, 15%)

Requirements of foundation for static and rotating electrical machinery; Concept of leveling and aligning; Procedure for leveling and aligning alignment of direct coupled drive, effects of mis-alignment; Installation of transformer and procedure of installation of transformer, Requirements of installation of pole mounted transformer; Devices and tools required for loading, unloading, lifting, and carrying heavy equipment and precautions to be taken while handling them.

Unit – III: Testing and Commissioning (03 Periods, 20%)

Concept of testing and Objective of testing; Roles of I.S.S. in testing of electrical equipment, Types of tests and concepts: Routine tests, supplementary test, special tests, Methods of testing - Direct/Indirect/Regenerative testing; Tolerances for the various items for equipment – transformer, induction motor, dc motor, synchronous machines; Commissioning, Tests before Commissioning for transformer, induction motor, alternator; Testing of three-phase Induction motor as per I.S.325; Testing of single-phase induction motor; Testing of synchronous machines and D.C. machines.

Unit – IV: Troubleshooting Plans (03 Periods, 20%)

Internal and external causes for failure / abnormal operation of equipment; List of mechanical faults, electrical faults and magnetic faults in the electrical equipment remedies, applications; Use of tools like bearing puller filler gauges, dial indicator; Common troubles in electrical equipments and machines; Preparation of trouble shooting charts for D.C. Machines, AC Machines and transformers.

Unit – V: Maintenance (03 Periods, 25%)

Concept of maintenance, types of maintenance, Routine, preventive and breakdown maintenance; Causes of failure of electrical machines; Preventive maintenance - procedure or developing maintenance schedules for electrical machines; Factors affecting preventive maintenance schedule: (a) Distribution transformer, (b) Single phase and three phase Induction motors, (c) Batteries.

Practical Work

• Unit I — Determine breakdown strength of transformer oil.
• Unit I — Perform insulation resistance test on any one motor/transformer using Megger.
• Unit II — Evaluating the parts of an Alternator and testing an assembled alternator same on a test bench for proper operation.
• Unit II — Evaluating the parts of a Transformer assembled Transformer same on a test bench for proper operation.
• Unit III — Find regulation and efficiency of single-phase transformer by direct loading and back-to-back connection method and compare the results.
• Unit III — Determine efficiency of D.C. machine by Swinburne's test.

And more — the complete list of 12 practicals is inside the PDF.

Complete Syllabus

The full examination scheme, the complete practicals list and the reference books from the official syllabus. The unit-wise topics are in the "What You Will Study" section above.

Examination Scheme

Units at a Glance

Complete Practicals List

This is the complete list of practicals from the official syllabus.

• Unit I — Determine breakdown strength of transformer oil.
• Unit I — Perform insulation resistance test on any one motor/transformer using Megger.
• Unit II — Evaluating the parts of an Alternator and testing an assembled alternator same on a test bench for proper operation.
• Unit II — Evaluating the parts of a Transformer assembled Transformer same on a test bench for proper operation.
• Unit III — Find regulation and efficiency of single-phase transformer by direct loading and back-to-back connection method and compare the results.
• Unit III — Determine efficiency of D.C. machine by Swinburne's test.
• Unit III — Determine efficiency of D.C. machine by Hopkinson's test.
• Unit IV — Prepare trouble shooting charts for electrical machines such as Transformer, D.C. machines, Induction motor, and Synchronous machines.
• Unit IV — Use of tools like bearing puller, filler gauges, dial indicator.
• Unit V — Prepare the preventive maintenance schedule of Distribution transformer.
• Unit V — Prepare the preventive maintenance schedule of induction motor.
• Unit V — Prepare the preventive maintenance schedule of batteries.

Reference Books

As listed in the syllabus:

• Deshpande, M. V. PHI Learning Pvt. Ltd., 2010, Design and Testing of Electrical Machines ISBN No 8120336453, 9788120336452
• Rao, B V S Asia Club House, First Reprint, 2011, Operation and Maintenance of Electrical Equipment Vol-I, ISBN No 8185099022
• Rosenberg. Mc GRAW-HILL, 1st Edition, May 2003, Maintenance and Repairs, ISBN No 9780071396035
• Sharotri, S.K. Glencoe/ Mcgraw-Hill; 2nd Edition, June 1969; Preventive Maintenance of Electrical Apparatus, ISBN No 10: 007030839X 13: 978-0070308398

Frequently Asked Questions

How many marks is Electrical Testing and Commissioning worth in the 5th semester?
100 marks, 3 credits. It is a practicum subject (L 1 – 4): internal 60, external 40 (3 hrs).

Which unit carries the most weightage in Electrical Testing and Commissioning?
Maintenance, 25% (03 periods).

How many practicals are there in Electrical Testing and Commissioning?
12 practicals — the complete list is in the Complete Syllabus section above, and in the PDF.

Which books should I read for Electrical Testing and Commissioning?
4 reference books are listed in the official syllabus — the full list is in the Complete Syllabus section above.

How can I download the Electrical Testing and Commissioning syllabus PDF?
The PDF is free to download — use the download link in the Download section below. It is prepared by KAMALDNP Academy from the official BTEUP syllabus.

Should I choose Electrical Testing and Commissioning or Illumination Practices?
Both are the two options of Program Elective-4 (5.4) — you choose one. This subject is about safety, insulation, installation and erection, testing and commissioning, troubleshooting and maintenance of electrical equipment. Check with your polytechnic which option it offers.

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Download the Electrical Testing and Commissioning Syllabus PDF

Download the complete Electrical Testing and Commissioning syllabus PDF below — prepared by KAMALDNP Academy, with the full topic list, practicals and reference books.

Download the Electrical Testing and Commissioning Syllabus PDF

Source: BTEUP 3rd Year Electrical Engineering curriculum (folder2627), approved in C.D.C. meeting held on 16.07.2026. Topic lists follow the official syllabus; short explanations are the author's own plain-English summaries, not syllabus text. Please confirm with your own polytechnic for any local changes.