Thumbnail
Access Restriction
Open

Author Sankaranarayanan, N. ♦ Jagannath, K.
Source CiteSeerX
Content type Text
File Format PDF
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Automatic Load Transfer ♦ Case Study ♦ Nuclear Power Station ♦ Unit Transformer ♦ Power Supply ♦ Increased Reliability ♦ Primary Coolant Pump-motor ♦ Large Capacity Motor ♦ In-plant Auxiliary Load ♦ Condensate Extraction Pump ♦ Abstract Nuclear Power Plant ♦ Condenser Cooling Water Pump ♦ Optimal Setting ♦ Actual Load Transfer Data ♦ High Inertia ♦ Independent Source ♦ Start-up Transformer ♦ Tie Circuit Breaker ♦ Healthy Source ♦ Successful Load Transfer ♦ Load Transfer ♦ Kaiga Atomic Power ♦ Feed Pump
Abstract Abstract—Nuclear power plant has a provision of two independent sources of power for its in-plant auxiliary loads required for the operation of plant. These loads include high inertia, large capacity motors such as primary coolant pump-motor, condenser cooling water pumps; boiler feed pumps, condensate extraction pumps etc. Two sources of power are meant for increased reliability of power supply to the plant. One of these feed two buses through Unit Transformer (UT) taking its incoming supply from either the generator or Grid while the rest two buses are supplied directly from the grid through Start-Up Transformer (SUT). In case, one of these two supplies fails, the buses are restored through the other healthy source by closing the tie circuit breakers. This is termed as Automatic Load Transfer (ALT). In this paper the existing set up for load transfer is analyzed and the optimal settings are prescribed for the safe and successful load transfer based on experience. Actual load transfer data and trends obtained from Kaiga Atomic Power satation-1&2 are presented for study.
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study
Learning Resource Type Article