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Compact AVR

Solid state, fast response continuous acting, thyristorised voltage regulator. Ideal choice for LT generator

up to 3MW rating used for industries. 

Features available

Dual auto channel for better availabilityIndependent manual channel.omplete electronic circuits on single printed circuit board.!uadrateure droop type compounding feature for stable operation of generator in parallel."ID control loop.Minimum ad#ustment.

AVR type VXB22M/VXB32M

Ideal hoice $or LT % &T generator 'ith D e(citation% brushless e(citation.

Features available

Independent auto and manual channels.Motori)ed reference for auto and manual controlompounding for parallel operation of generators*nder e(cited M+- Limiter -otor current limiter ver and under e(citation monitor "o'er factor controller $ollo' up for bump less transition bet'een auto and manual control.Short circuit e(citation maintenance feature

 uto over flu(ing control"T fuse failure monitor -otating diode failure detection for brushless e(citation

Digital AVR type VXB22D/VXB32D

Ideal choice for LT % &T generator 'ith D e(citation% brushless e(citation

Features available

$our operating modes / +oltage -egulation, $ield urrent -egulation, "$ -egulation and +- -egulation'ithsmoothchangeoveramongthechannels$ollo'0up to match outputs of active and all the non0active modes for smooth changeoverompoundingforparalleloperationofgeneratorsSet0pointad#ustmentsforallthemodes

*ndere(citationlimitingvere(citationlimitingStatorcurrentlimiting

 utoover0flu(ingprevention1+%$Limiter2"o'erSystemStabili)er1optional2eneratorover0voltage4under0voltageprotections$ieldover0voltage4over0currentprotectionsDetectionoflossofsensingSoftstartvoltagebuild0up

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DatacommunicationtoDSsystemonmod0busprotocolLocal menu driven &MI 1&uman Machine Interface2 4 " controlled parameter ad#ustment

Digital AVR type VXD32D

Ideal choice for &T generators 'ith brushless e(citation

Features available

$our operating modes / +oltage -egulation, $ield urrent -egulation, "$ -egulation and +- -egulation'ith smooth changeover among the channels$ollo'0up to match outputs of active and all the non0active modes for smooth changeover ompounding for parallel operation of generatorsSet0point ad#ustments for all the modes*nder e(citation limitingver e(citation limitingStator current limiting

 uto over0flu(ing prevention 1+%$ Limiter2

enerator over0voltage 4 under0voltage protections$ield over0voltage 4 over0current protectionsDetection of loss of sensingSoft start voltage build0up-edundant controllers in hot standby mode 'ith auto0trac5ing bet'een controllersData communication to DS system on mod0bus protocolLocal menu driven &MI 1&uman Machine Interface2 4 " controlled parameter ad#ustment

Digital SEE type VSD3/VSD32

Ideal choice for LT % &T generator 'ith static e(citation.

Digital SEE ! VSD3

Features available

$our operating modes / +oltage -egulation, $ield urrent -egulation, "$ -egulation and +- -egulationWithsmoothchangeoveramongthechannels$ollo'0up to match outputs of active and all the non0active modes for smooth changeoverompoundingforparalleloperationofgeneratorsSet0pointad#ustmentsforallthemodes*ndere(citationlimitingvere(citationlimitingStatorcurrentlimiting

 utoover0flu(ingprevention1+%$Limiter2

"o'ersystemstabili)er1optional2eneratorover0voltage4under0voltageprotections$ieldover0voltage4over0currentprotectionsDetectionoflossofsensingSoftstartvoltagebuild0upDatacommunicationtoDSsystemonmod0busprotocolLocal menu driven &MI 1&uman Machine Interface2 4 " controlled parameter ad#ustment

"i#e pro#uct spectrum o$$eri%g system solutio%

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A%alog E&citatio% Co%trol E'uipme%t

• ompact utomatic +oltage -egulator 1+-2 for LT generator employing D e(citation and

brushless e(citation.

• +- type +6788m% +6738m for IT%&T generators employing D e(citation and brushlesse(citation. 7esides voltage regulation various limiting and protection features vital for trouble freesystem operations are available.

•  +- type +6D38 for brushless e(citation control of &T%LT generators e9uipped 'ith "M.

Limiting and protection features are identical to +- type +6738m.

• ompact +- type +6D:8 for 'arship generator of Indian ;avy.

• Static e(citation suitable for generators installed in mini%micro &ydel po'er plants and industries.

Digital E&citatio% Co%trol E'uipme%t

• Digital +- type +6788D for small and medium si)e machines 'ith D or brushless e(citers

• Digital +- type +6738D for medium and large si)e machines 'ith D or brushless e(citers

• Digital +- type +6D38D for medium and large si)e machines 'ith D or brushless e(citers

having "M as a po'er source

•Digital S