The full form of PSU refers to Public Sector Undertakings and Power Supply Unit.
Introduction
PSUs (full form Public Sector Undertakings) are government-owned enterprises in India, in which 51% or more of the paid-up share capital is held by the central government or by any state government or partly by the central government and partly by the state government.
The Comptroller and Auditor General of India (CAG) has the power to conduct audits of government companies, appoint the Auditor, and direct how the Auditor shall audit the company’s accounts.
Evolution
The problems of India after Independence such as inequalities in income, unemployment, lack of trained human capital, weak industrial base, inadequate investments and infrastructure facilities, etc. set the roadmap for the development of the Public Sector as an instrument for self-reliant economic growth by adopting the planned economic development policies.
The public sector undertaking companies operate as core and strategic industries in the areas of manufacturing consumer goods, consultancy, contracting and transportation, etc.
Classification of Public Sector Undertakings
Public Sector Undertakings (PSUs) can be classified as:
- Public Sector Enterprises (PSEs)
- Central Public Sector Enterprises (CPSEs)
- Public Sector Banks (PSBs).
PSU Status
Depending on the turnover and net worth of individual enterprises, the prestigious status of Maharatna, Navratna, Miniratna is being conferred to the CPSEs by the Department of Public Enterprises, to provide them greater autonomy to compete globally.
- Examples of Maharatna PSUs: Bharat Heavy Electricals Limited (BHEL), Coal India Limited, Gas Authority of India Ltd., Steel Authority of India Ltd, etc.
- Examples of Navratna PSUs: Bharat Electronics Ltd., Engineers India Ltd, NMDC Ltd., Oil India Ltd., Hindustan Aeronautics Ltd., etc.
- Examples of Miniratna PSUs: Airports Authority of India, BEML Ltd., Central Warehouse Corporation, Bharat Dynamics Ltd., etc.
Now let us understand another meaning of PSU i.e. Power Supply Unit, and its components.
PSU (Power Supply Unit)
- The full form of PSU also refers to Power Supply Unit. It is a hardware item that’s used to convert the power provided from the outlet into usable power for the many parts inside the computer case.
- PSUs are used in computers, radio transmitters and receivers, and all other electronic equipment that use DC voltage as an input. An uninterruptible power supply is a must for computers to save the input data.
- Once the computer is plugged into standard electrical outlets, the PSU pulls the required amount of energy and converts the alternating current (AC) into a continuous stream of direct current (DC) that the computer components need to run steadily. It also controls the voltage by regulating the overheating of the device.
Components of a PSU
- Transformer
- Rectifier
- Filter
- Voltage Regulators
Conclusion
So this was all about the two full forms of PSU, the evolution of PSU companies, the classification of PSU companies, and the meaning of PSU as a power supply unit and its various components. Still, if you have any doubts or queries related to any of the PSUs discussed above, write to us through the comments section, we would try to address them at the earliest.