Steam Turbine Cum Auxiliary Plant Operator (ATS)

  • Job DescriptionOperates steam powered turbine which drives generators for producing electricity. Starts turbine by opening valve for supply of steam into turbine to rotate turbine wheels; runs turbine at low speed for pre-determined length of time and notifies the Switch Board Operator when ready to run turbine at full working speed; increases speed of turbine and ensures that automatic regulator maintains correct working speed; notifies Switch-Board Operator that turbine can be synchronised with other power units in plant.
  • SectorPower
  • NSQF LevelLevel 5
  • Notional Hours4120
  • Accrediting BodiesDirectorate General of Training (DGT)
  • Certifying BodiesDirectorate General of Training (DGT)
  • Proposed Occupation

    STEAM TURBINE-CUM-AUXILIARY PLANT OPERATOR has a wide scope of Employability ranging from self-employment, contractual employment to Industrial jobs. On successful completion of this course, the candidates shall be gainfully employed in the industries for following occupations:


    • Turbine Operator, Steam
  • International Comparability

    1.   Existence of any official document suggesting the comparability of the qualification with the qualifications in other countries is not known.

    2.   However, NAC holder trainees are getting employment in many Gulf countries, European countries, Australia, New Zealand, Singapore etc

  • Planned arrangements for RPL
    1. Only those candidates will be allowed to appear in the Test conducted by NCVT as Private candidate who have already acquired the National Trade Certificate.
    2. Three (03) years experience of the candidates wishing to appear as Private candidate after obtaining NTC should be in the same trade in which he proposed to acquire the National Apprenticeship Certificate.
    3. Private candidates possessing the minimum educational qualification required for engagement as an apprentice in that particular trade and the minimum experience as stated above would only be permitted.
    4. Candidates are to be sponsored by an establishment and should not be entertained directly.
    5. Only, the experience acquired by the candidate in an establishment implementing the Apprentices Act, 1961 should be considered and such certificate should be issued by the Officer In-charge of Training of that establishment
  • Supporting Documents
  • Formal structure of the qualification
    Title of unit or other component Estimated size (Hours) Level
    Prepare different types of documentation as per industrial need by different methods of recording information. 80 5
    Introduction to elementary knowledge of feed water system and boiler feed pump, draught system of boilers, fuel system, steam network and turbine and visit at site. 120 5
    Study of different parts & fittings of a boiler such as steam and water drums, stoker gauge, water tubes and flow tubes, high and low water level alarm, gauge glasses, soot blowers, safety valves etc. Forced draught, induced draught, balanced draught and 180 5
    Measurement of temperature, pressure, vacuum, draught, flow using appropriate instruments for different system. 120 5
    Uses, methods of jointing, checking of joints for leakage and remedy thereof. 140 5
    Study of different parts of turbine; study the features of construction of blades, nozzles, governor parts, condensers, ejectors, etc. Study of different types of pumps, compressors and their parts. Different types of valves. 180 5
    Boiler & their Auxiliaries 200 5
    Turbine and Auxiliaries 240 5
    Turbine auxiliaries such as condensers, ejectors, extraction pumps, C.W. pumps etc 240 5
    Study, operation and adjustment of turbine governor, different types, method of working of synchronizing governor, over speed gover¬nor, speed limit governor and emergency shut-off devices, Electro-hydraulic governer. The trainee must get a thorough pract 200 5
    Turbine plant operation - starting an conden¬sing plant, starting a steam turbine from cold condition, method of running up to speed neces¬sity of slow and uniform heating, critical speed avoiding, vibration at critical speeds, care to be taken when remov 200 5
    Turbine troubles and remedies - study of ab¬normalities during operation and remedial measures. Troubles, such as loss of vacuum, air leakage, low oil pressure, hot bearings, etc. vibration - their causes and remedies. 200 5
    Instrumentation and control - necessity of different instruments for measuring and recor¬ding temperature, pressure, flow etc. Co-relation of different date as recorded by various instruments. Study of these in relation to load. Turbine supervisory instru 200 5
    Importance of maintenance of daily log sheets and records, delay register, defect register. 140 5
    Operation of steam pressure reducing station and H. P., L. P. by pass station. 140 5
    Basic Training, internal assessment and Examination 1000 5
    Total 4120