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SRC ApplicationsSRC ApplicationsDecember 2013December 2013

PagePage 11

Secondary Resistive ControllerApplications


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PagePage 22

Content:

Drive TechnologiesDrive Technologies Introduction o SRCsIntroduction o SRCs

– !asic "peration!asic "peration – Resistors# Contactors# P$C ControlResistors# Contactors# P$C Control

Alternative Drive S%stems & $Rs# '(Ds Alternative Drive S%stems & $Rs# '(Ds Conve%or ApplicationsConve%or Applications Crusher ApplicationsCrusher Applications

)ill Applications)ill Applications Car Shredder ApplicationsCar Shredder Applications


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PagePage 33

Drive Technologies

for Material Handling Applications

S*uirrel Cage Induction )otor +SCI),S*uirrel Cage Induction )otor +SCI),

– variable re*uenc% drive +'(D,variable re*uenc% drive +'(D,

– sot starter sot starter – luid coupling & mechanical solutionluid coupling & mechanical solution

-ound Rotor Induction )otor +-RI),-ound Rotor Induction )otor +-RI), – li*uid rheostat +$R,li*uid rheostat +$R,

– secondar% resistive controller +SRC,secondar% resistive controller +SRC,

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Secondary Resistive Controller


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PagePage //

SRC Construction

Resistor !anResistor !an

– elded stainless steel plateselded stainless steel plates

– indoor outdoor indoor outdoor

P$C Controlled 'acuum ContactorsP$C Controlled 'acuum Contactors

Control Circuitr%Control Circuitr%

– Allen !radle% P$Cs +unless otherise speciied, Allen !radle% P$Cs +unless otherise speciied,

–

standalone# selcontrolled s%stemstandalone# selcontrolled s%stem

– communication available ith main control s%stem viacommunication available ith main control s%stem via

hardired ires or standard protocols +i4e4 Proibus,hardired ires or standard protocols +i4e4 Proibus,

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SRC Construction

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PagePage 66

SRC Field Installation


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PagePage 77

Liuid Rheostat

!peration And Construction

electrodes submerged in a tan illed ithelectrodes submerged in a tan illed ithconductive li*uid +electrol%te,conductive li*uid +electrol%te,

the position o the electrodes is ad8usted or thethe position o the electrodes is ad8usted or theelectrol%te level is ad8ustedelectrol%te level is ad8usted

the electrol%te temperature must be maintainedthe electrol%te temperature must be maintained need or temperature control e*uipmentneed or temperature control e*uipment+temperature monitoring# pumps# chillers,+temperature monitoring# pumps# chillers,

li*uid treatment e*uipment +minerals# p9,li*uid treatment e*uipment +minerals# p9, short circuit contactor +creates a tor*ue spie,short circuit contactor +creates a tor*ue spie,

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SRC A li iSRC A li ti


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Liuid Rheostat Construction

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SRC A li tiSRC A li ti




PagePage 1010

"FD Characteristics

ull% programmable or desired speed controlull% programmable or desired speed control

P( correctionP( correction

controlled acceleration and deceleration +d%namic orcontrolled acceleration and deceleration +d%namic orregenerative braing capabilit%,regenerative braing capabilit%,

e;tremel% eicient or speed control ate;tremel% eicient or speed control at nearnearma;imumma;imum constant loadconstant load

t%picall% re*uires installation in controlledt%picall% re*uires installation in controlledenvironment +air conditioned




PagePage 1111Conveyor Applications

/009P & 3/00 9P Applications

T%pical Drive S%stems= SRCs# '(Ds# $Rs

SRCs suitable or ide range o conve%or

applications rom ne installations to

retroitupgrades4

SRCs capable o load

sharing

SRC ApplicationsSRC Applications




PagePage 1212

SRC # "FD Co$parison

SRCSRCcapital cost + /00 hp >,capital cost + /00 hp >,

SRCSRCoperating environmentoperating environment

SRCSRChigh tor*ue availabilit% at lo orhigh tor*ue availabilit% at lo or?ero speed?ero speed

SRCSRCmaintenancemaintenance

SRCSRCreliabilit%reliabilit%

SRCSRCcontinuous operation ith var%ingcontinuous operation ith var%ing

loadload

'(D'(D(re*uent startingstopping(re*uent startingstopping'(D'(DConstant load# variable speedConstant load# variable speed

endend





PagePage 1313Crusher Applications

/00 & 1/00 9P/00 & 1/00 9P

T%pical Drive S%stems= SRCs# $RsT%pical Drive S%stems= SRCs# $Rs

Above or !elo @round Crushers Above or !elo @round Crushers

SRC capable o providing highSRC capable o providing highstarting tor*ue or 8ammedstarting tor*ue or 8ammedconditionsconditions





PagePage 1.1.Mill Drives3/00 6000 9P Applications

70 100 Speed Control

T%pical Drive S%stems= $Rs

SRCs are being oered as a

replacement drive s%stem or $Rs

$ess don time

PT (reeport Chino )ine replaced the $R

s%stem or SRCs in 2011

ASARC" ill be commissioning SRCsor to 6000 9P sag mills in earl% 201.

Increasedproductivit%





PagePage 1/1/Car Shredder Application

.000 /000 9P

T%pical Drive S%stem= $Rs

SRCs are being oered as a

replacement drive s%stem or $Rs

SRC Applications=

B )orris Rec%cling & .000 9P

B )etals )anagement & /000 9P

Increased time

in overload

condition

$ess

dontime

Increased

productivit%





PagePage 1515

SRC # LR co$parison

moderatemoderatever% lover% looperational costsoperational costs

signiicantsigniicantnonenoneenvironmentalenvironmental

concernsconcerns

moderatemoderatever% highver% highreliabilit%reliabilit%

signiicantsigniicantloloreal estatereal estate

re*uirementsre*uirements

signiicantsigniicant

minimalminimal

maintenancemaintenance

re*uirementsre*uirements

loer loer higher higher capital costcapital cost

$R$RSRCSRC



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Su$$ary of %ey &oints

)ain advantages or SRCs over '(Ds $Rs)ain advantages or SRCs over '(Ds $Rs – Reliabilit%Reliabilit%

– )aintenance Costs)aintenance Costs

– Robustness to

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