Optimisation of the Start-up and Operation Regimes of Cooling Water Pumps of a High-Power Hydro Generator
It is necessary to make sure that the operation of cooling installations of hydro generators could be made in conditions of enhanced security so that the probability of defects occurrence during their exploitation be practically null. The asynchronous regime of direct network start up is accompa...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Eftimie Murgu University of Resita
2015-07-01
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| Series: | Analele Universităţii "Eftimie Murgu" Reşiţa: Fascicola I, Inginerie |
| Subjects: | |
| Online Access: | http://anale-ing.uem.ro/2015/36.pdf |
| Summary: | It is necessary to make sure that the operation of cooling installations
of hydro generators could be made in conditions of enhanced security
so that the probability of defects occurrence during their exploitation be
practically null. The asynchronous regime of direct network start up is
accompanied by very high values of the start-up current, associated
with important voltage drops on supply cables, which results in the extension
of the motor starting time. The present paper shows an efficient
method of driving the cooling water pumps by the supply of electric
driving motors with variable frequency. |
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| ISSN: | 1453-7397 1453-7397 |