OKB “GIDROPRESS” shipped components for Kalinin NPP reactor plant equipment
OKB “GIDROPRESS” shipped a set of hold-down devices, 8 pitch position indicators and a set of spare parts for isolation devices to Kalinin NPP. The hold-down devices are intended to replace the equipment components which have finished their service life in a set of Kalinin NPP reactor plant. This type of hold-down devices is applied at the reactor top head unit. They are used to force down the reactor internals in order to prevent their vertical movement due to coolant flow during reactor operation. The pitch position indicator is a component of the control and protection system (CPS) ShEM-3 drive and serves to monitor the position of the VVER-type reactor CPS absorbing rods.The isolation devices are an equipment set intended to isolate hermetically “hot” and “cold” primary collectors of steam generator from the main circulation pipeline for simultaneous fulfillment of refueling in the reactor and repair works at the steam generator (for example, SG chemical washing, inspection performance). The isolation device is designed at OKB “GIDROPRESS” for steam generators of PGV-1000 and PGV-1000M types to be operated in a set of VVER-1000 reactor plants under the refueling conditions. By the present time such types of steam generators with isolation devices are used at Kalinin, Balakovo, “Tianvan” NPPs. All the above said equipment is designed at OKB “GIDROPRESS” and manufactured at its production facilities. The shipping of the equipment has occurred within the schedule and without any remarks.