H.P.P. EXTENDED OPERATIONAL CAPACITIVE REGIME
WITHIN THE CONTRIBUTION OF ONE DIGITAL A.V.R.
The paper presents some important aspects regarding the extended
capacitive field of operation for one Hydro Power Plant – HPP with the
contribution of a digital Automatic Voltage Regulator AVR. As we do know, the
capacitive regimes are more difficult to be operated for one remote HPP and,
from here, the AVR found to work properly could be considered to be the
proper chosen one. Among AVR chosen to control at the best such regimes,
devoted for special cases with remote HPP are preferred those of digital type.
The paper presents by comparison, two types of different AVRs at work – one of
old classic type SAREX 42 A vs. the newer digital one, of much more improved
performances, called type SRAT-N.
Cuvinte cheie: sistem de excitație SE, sistem de reglare automată a
tensiunii SRAT, hidrogenerator sincron HG, centrală hidroelectrică CHE
Keywords: system excitation SE, automatic voltage regulator AVR,
hydroelectric generator HG, hydroelectric power plant HPP
23-38 APORTUL R.A.T. DIGITAL ÎN EXTINDEREA DOMENIULUI CAPACITIV DE FUNCȚIONARE