CPRI approved transformers manufacturers in mumbai

A Full Range Of CPRI approved transformers suppliers in africa, view CPRI approved transformers price

Central Power Research Institute is also known as CPRI in short. CPRI has been established in 1960 by the Government of India. CPRI or Central Power Research Institute is a Premier Institute which undertakes applied Research in the field of electrical engineering besides operating as an Independent National Testing as well as Certification authority for electrical equipment in India.  One such product tested by the Central Power Research Institute is a transformer.

CPRI approved transformers manufacturers in mumbai



Carries A Complete Line Of CPRI approved industrial power transformers, CPRI approved transformers Exporter in india

At Rajasthan Powergen Transformer P. Ltd., We are a factory that has been cpri approved transformers for various fields such as distributors transformers, power transformers, current transformers, reactors as well as voltage transformers. Since we are cpri approved transformers manufacturers, the reactors & transformers, produced in our factory have been tested periodically for both Impulse as well as Short circuit withstand. With regards to Distribution and Power Transformers, the tests administered according to the Central Power Research Institute standards include Short circuit dynamic and thermal withstands test.

Generally, the cpri approved transformers are tested with Short circuit tests up to 200 kArm or a  1100 Volts for LT equipment has been used or Short time current tests up to 200 kArms for one second or 100 kArms for a period of 3 seconds.As one of the leading cpri approved transformers manufacturers, we have facilities to test and check our products at regular intervals.We are one of the leading and certified dealers, suppliers and distributors along with being a cpri approved transformers manufacturers in Mumbai.


What is CPRI approved transformer ?

CPRI. Central Power Research Institute (CPRI) was set up by the Government of India in 1960. It could be a Head Established undertaking applied Research in electrical engineering other than working as an Autonomous National Testing and Certification authority for electrical equipment.it got to be an Independent Society within the year 1978 beneath the aegis of the Ministry of Power, Government of India. The Institute has advertised its services for more than five decades to the Power Sector.

CPRI approved transformer


CPRI approved transformer specification

  • Phase is 3Ø
  • Frequency if 60Hz,50Hz
  • Primary Voltage is 22.9 kV
  • Secondary Voltage is 6.6/3.3 kV
  • Tap Voltage 23.9-R22.9-21.9-20.9-19.9kV
  • Vector Dd0, Dyn11, etc.
  • Range:2500 kVA to 100,000 kVA, up to 220 kV Class
  • standard:

    • Distribution and power transformers: IS: 2026, BS: 171 & IEC: 76
    • Converter transformers: IS: 4540, IEC: 146 & IEEE: 444
    • Furnace transformers: IS: 2026
    • System earthing transformers: IS: 3150 & BS: 4944
  • Off-circuit tap changer to provide +5% to -5%, +7.5% to -7.5%, +10% to -10% taps
  • On-load tap changer for offering +5% to -15% taps in steps of 1.25% / +5% to -15% in steps of 2.5%
  • Frequency of 50 Hz in voltages of 11 KV, 22 KV, and 33 KV
  • Continuous duty
  • Standard fittings according to IS: 2026/IEC: 76
  • HV Side cable box/Bare Brushings
  • LV Side cable box/bus duct
  • Certification: CPRI approved
  • CPRI approved transformers manufacturers in india: Bangladesh, Malaw, Kenya, Uganda, Nigeria, Malaysia Rwanda, India, Africa, Nepal, Tanzania


Classification of Transformer Range Type
Power Transformer 3.15 MVA to 150 MVA at 330 KV class Core type 3 phase, Generator Transformer, Unit Auxiliary Transformers, Step up and step down Transformers, Interconnecting.

Auto Transformers, Dual Voltage Primary or Secondary Three winding Transformers.

Distribution Transformer 6.3 KVA to 3150 KVA, upto 33 KV classs Core type single phase, Three winding Transformers, Step up and step down Transformers, Dual Voltage Primary or Secondary.
Special Transformers As per customer requirement Auto Transformers, Arc Furnace Transformers, Step up Generator Transformers, Thyristor Duty Transformers, Zig zag Transformers, Voltage Regulators,Earthing Transformer,Rectifier
Transformer,Mining Transformer,Testing Transformer,Transformer for AC/DC Drives.r


CPRI approved transformers manufacturers in mumbai


CPRI Test Reports

  • Test Report

    • Test report will be issued for the equipment/products tested, at no extra cost, but only upon payment of the final bill of test charges. In case of requirement of additional copies of test report/test certificate, the Customer shall inform the Testing Authority before commencement of the test. Separate charges will be levied for such requests.
    • The report will contain the record of the values of test results, the physical condition of the equipment/products during/after the test(s) copy(s) of Oscillogram(s), graphs, drawings, photographs, etc as appropriate.
  • Test Certificate

    • The sealed test certificate is issued, on request and on payment of additional 10% of the total test charges when an equipment/product/sample of a particular type and rating has satisfactorily passed all the specified tests in compliance with the conditions stipulated in a published National/International Standards.
    • This Certificate is issued in justification of the satisfactory rating of the equipment/product/sample for which it is tested.