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Delivery of a Synchronous Generator at the Kozloduy NPP site


  • duration:
    November 2018 – November 2019
  • Contract value:
    BGN 2 362 000


Delivery of a Synchronous Generator at the Kozloduy NPP site

At present, on the site of Kozloduy NPP synchronous generators of the type GBD 10j- 7750-6,3 / 50 are operated as components of a system for reliable power supply category II for Units 5 and 6. During the inspection of these synchronous generators regarding the extension of the service life of Units 5 and 6 of Kozloduy NPP, minor discrepancies were found, which, require the synchronous generators to be overhauled in the factory in the near future.

GCR AD, as a representative of the Polish company DOLNOŚL4SKA FABRYKA MASZYN ELEKTRYCSNYCH Sp. z o.o. for Bulgaria, was tasked, to supply a new synchronous generator, fully compatible with those installed on the site of Kozloduy NPP.

The synchronous generator GBD 10j- 7750-6,3 / 50 was produced according to the original design by which the synchronous generators operating on the site from the beginning of operation of Units 5 and 6 were made.

GCR AD performed seismic qualification of the synchronous generator so that it could be used for emergency power supply of the safety systems of Kozloduy NPP.
In August 2019, the generator passed successful factory tests, after which it was delivered to the Kozloduy NPP site.