Possibilities of self-starting of the electric motors for own needs of the fifth unit of the Kozloduj NPP
Creators
- 1. Vissh Massinno-Elektrotekhnicheski Inst., Sofia (Bulgaria)
- 2. Stopansko Obedinenie Atomna Energetika, Kozloduj (Bulgaria)
Description
A characteristic feature of the existing electric power users' supply system of the Kozloduy NPP is that the emergency transformers serve both the 5th and 6th units. This circuit assures high reliability of the electric motors' self-starting, if no preliminary charge is included. For improving the process of self-starting in such a case the following measures are proposed: uniform distribution of the charge towards the sections; implementation of new variants of circuits in the systems for own needs, e.g. with four transformers with a single power of 40 MW; currentless pause at self-starting not higher than 1 s; in case of simultaneous operation of the 5th and 6th units the voltages of the working emergency transformers should be kept on the maximum permissible level. 4 tabs, 3 figs, 2 refs
Additional details
Publishing Information
- Journal Title
- Energetika (Sofia)
- Journal Volume
- 41
- Journal Issue
- 8,9
- Journal Page Range
- p. 20-24.
- ISSN
- 0324-1521
INIS
- Country of Publication
- Bulgaria
- Country of Input or Organization
- Bulgaria
- INIS RN
- 24038854
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ELECTRIC MOTORS; ELECTRIC POTENTIAL; ENERGY CONSUMPTION; KOZLODUY-5 REACTOR; POWER SUPPLIES; RELIABILITY; THEORETICAL DATA
- Descriptors DEC
- DATA; ELECTRICAL EQUIPMENT; ELECTRONIC EQUIPMENT; ENRICHED URANIUM REACTORS; EQUIPMENT; INFORMATION; MOTORS; NUMERICAL DATA; POWER REACTORS; PWR TYPE REACTORS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WWER TYPE REACTORS