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Study and technical assistance for alternator upgrading

LOCATION
Bryson power plant, Québec, Canada
CLIENT
Hydro-Québec
PROJECT
Study and technical assistance for the upgrading and power increase of the plant’s alternators
PERIOD
2006-207
DISCIPLINES
Mechanical, electrical and automation

PROJECT DESCRIPTION

BBA was commissioned to carry out the preliminary study of the behaviour of electrical and mechanical components in order to increase the alternators' power from 22.6 MVA to 26 MVA. The services provided included:

Power increase study with electrical and mechanical simulations to validate component capacities
Assessment of the potential application of the rotating diode technology to the main existing exciters
Optimization of thurst bearing lubrification by installing an oil injection system and applying a coat of PTFE
Upgrading study for the alternators' instrumentation to align it with Hydro-Québec's practices
Upgrading study for the breaking systems of alternators 1 and 2