Object

Kozloduy NPP – Design, delivery and installation of a 5EA50 rechargeable battery.
The rechargeable battery with designation 5EA50 in M3 of Unit 5 was installed in 1998 and is a lead-acid, stationary, serviceable rechargeable battery consisting of 106 elements.
Due to depletion of the resource and deterioration of the condition of the rechargeable battery, GCR AD was assigned to replace it with a new one meeting the modern requirements for operation in a nuclear power plant.

GCR AD, as a leading member of the consortium “GCR – Tristan-02”, successfully performed the activities of battery replacement, performing the following activities: design, installation and commissioning of stationary lead-acid battery, GROE (PLANTE), 14GroE1400 SGH 29D, manufactured by the Italian company FIAMM Energy Technology S.p.A.

Scope of the project

• Development of a working project;
• Delivery of the equipment on the site of Kozloduy NPP,
• Designer’s supervision during the installation of the equipment;
• Startup and check out works and commissioning.

Results

As a result of the performed activities, the rechargeable battery, racks and equipment meeting the modern technical requirements for safety and reliability have been installed. The rechargeable battery has a service life of over 20 years, is easy to maintain and operate.