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General Breaker Questions1. What should the .type enumerations for Bushing be? (used by SF6 dead tank, bulk oil, what others?)2. What should the .type enumerations for Mechanism be? Any specific to a given type of breaker?3. What should the .type enumerations for Interrupter be? I know these are specific to given types of breakers.4. What should .type enumerations for InsulationKind be?

5. Nameplate info for Bushing, Mechanism, Interrupter ?

Bushing Typessilicon rubberporcelaincomposite

BreakerMechanism Typeslow-energy FK spring-operatedspringlow-pressure hydraulicdisk spring – hydraulicspring-springlow-powered motor-charged springstored-energy springmotor-charged spring hydraulicspring drive

InterrupterUnit Typesarc-assist (or arc-assisted)self-blast (same thing as self-pressuring?)puffer (double-nozzle quenching is variant, right?)self-compression (2 moving contacts)rotating arcdouble pressure

Medium TypesSF6

SF6/N2

SF6/CF4

Bushing “Nameplate” InfoinsulationKindc1PowerFactorc2PowerFactorc1Capacitancec2Capacitance

ratedVoltageratedImpulseWithstandVoltageMAX L-G?ratedCurrentL DIM?

bottom plate?

Insulator Types (used by BushingInfo, and maybe InsulatingStackInfo?)porcelaincompositesilicon rubberBrown/Greyfiberglass

Transformer bushinghttp://www.gridsense.com/solutions-products/energized-asset-inspection/

BreakerMechanism “Nameplate” Info

InterrupterUnit “Nameplate” Info

InsulatingStack “Nameplate” InfoinsulationKind

Bulk Oil General Questions1. Is base superfluous on Bulk Oil or does it make sense to match other types of breakers?

Bulk Oil· 11 kV – 330 kV· Mineral oil used for both insulation and arc-

extinguishment · Mineral oil-filled insulated (grounded) tank

containing interrupter(s) with connections made via bushings.

1 Pole/Tank3 Poles/Tank

1 Pole/Mechanism3 Poles/Mechanism 1 Pole/Mechanism3 Poles/Mechanism

Bulk Oil Breaker Variants

Example templates provided

3 Poles /Base

type = mineralOil

tank medium:Medium

type = breakerTankAssembly

tank assembly:AssetContainer

type = breakerBulkOil

whole bulk oil breaker:AssetContainer

bushing 2:Bushing bushing 5:Bushing bushing 6:Bushing

position = 1

position 1:AssetPosition

position = 2


position = 3


position = 4


position = 5


position = 6


pole 1 interrupter:InterrupterUnit pole 2 interrupter:InterrupterUnit pole 3 interrupter:InterrupterUnit

+FixedContact +FixedContact +FixedContact +FixedContact+FixedContact+FixedContact

This Template3Poles/Base3Poles/Tank3Poles/Mechanism gasWeightPerTank = <gas weight>

whole SF6 dead tank breaker:SwitchInfo

bushing:BushingInfo

interrupter:InterrupterUnitInfo

breaker mechanism:BreakerMechanismInfomechanism:BreakerMechanism

type = breakerBase

base:AssetContainer

3Poles/Base, 3Poles/Tank, 3Poles/Mech66 kVhttp://www.openelectrical.org/wiki/index.php?title=Circuit_breakershttp://industrialtests.com/sf6-circuit-breaker-testing-maintenance/

3Poles/Base, 3Poles/Tank, 3Poles/Mech27 kVGE FKD-25.8-11000-4http://www.westcoastswitchgear.com/Inventory/Breaker/Details/SB3006Manufactured 1971 Single-break bulk oil breakers

would have one fixed and one moving contact, right?Double breaks have 2 fixed.

bushing 3:Bushing bushing 4:Bushingbushing 1:Bushing

type = mineralOil

pole 1 tank medium:Medium


pole 1 tank assembly:AssetContainer





type = mineralOil


type = mineralOil


bushing 1:Bushing bushing 2:Bushing bushing 5:Bushingbushing 3:Bushing bushing 4:Bushing bushing 6:Bushing

position = 1


position = 2


position = 3


position = 4


position = 5


position = 6



+FixedContact +FixedContact +FixedContact +FixedContact+FixedContact+FixedContact

gasWeightPerTank = <gas weight>


bushing:BushingInfo


breaker mechanism:BreakerMechanismInfo

type = breakerBulkOil

whole bulk oil breaker:AssetContainer

type = breakerBase

base:AssetContainer

This Template3 Poles/Base1 Pole/Tank3 Poles/Mechanism

mechanism:BreakerMechanism

3Poles/Base, 1Pole/Tank, 3Poles/Mech ?? kVhttp://www.inl.gov/featurestories/2003-03-25.shtml

3Poles/Base, 1Pole/Tank, 3Poles/Mech?? kVPaul B

3Poles/Base, 1Pole/Tank, 3Poles/Mech41 kVhttp://emadrlc.blogspot.com/2007/10/oil-circuit-breakers.html

3Poles/Base, 1Pole/Tank, 3Poles/Mech 230 kV (in 138kV application)http://electrical-engineering-portal.com/oil-circuit-breaker-how-does-it-interrupt-the-arc

3Poles/Base, 1Pole/Tank, 3Poles/Mech?? kVhttp://electrical-engineering-portal.com/circuit-breakers-classified-by-interrupting-medium

Minimum OIl Examples (of types different from sample templates) Example templates provided

Minimum Oil (Live Tank) Breaker· 38 kV – 765 kV· Insulator stacks provide electrical

isolation, mineral oil provides arc-extinguishment

· 1 or 2 oil-filled interrupter chamber(s) in top insulator(s) of insulator column, where one or more insulator columns can be used per pole, with interrupters in series.

Minimum Oil Questions1.Are there fundamental differences between how SF6 live tank, air blast and minimum oil are configured or does the template end up basically being the same?

1 Pole/Base3 Poles/Base

2+ Stacks/Pole1 Stack/Pole 2 Stacks/Pole1 Stack/Pole

1 Pole/Mechanism (rare)3 Poles/Mechanism 1 Pole/Mechanism3 Poles/Mechanism

Single Break Double Break 2 Break (1 Break/Stack)

4 Break(2 Breaks/Stack)

Single Break Double Break

1 Pole/Mechanism3 Poles/Mechanism


n Stacks/Pole


n*2 Break(2 Breaks/Stack)

(n+1)-(n*2-1) Break (1 Break/Stack for some

Stacks2 Breaks/Stack for other

Stacks)

n Break (1 Break/Stack)

3 Stacks/Pole



4-5 Break (1 Break/Stack

for some Stacks2 Breaks/Stack

for other Stacks)

3 Break (1 Break/Stack)

3 Break (1 Break/Stack for one Stack

2 Breaks/Stack other Stack)

...

SF6 Live Tank Breaker Variants

I could only find textbook references to “breaks in series” (no pictures) for minimum oil breakers. Do they use more than one stack per pole?

3Poles/Base, 1Stack/Pole, 3Poles/Mech, 2Breakhttp://www.eeh.ee.ethz.ch/uploads/tx_ethstudies/eps_st_lec6.pdf

type = mineralOil

pole 1 interrupter medium:Medium

type = insulatingStackAssembly

pole 1 insulating stack assembly:AssetContainer





type = breakerMinimumOil

whole SF6 live tank breaker:AssetContainer

position = 1


position = 2


position = 3


pole 3 interrupter:InterrupterUnit




whole SF6 live tank breaker:SwitchInfo


This Template3 Poles/Base1 Stack/Pole3 Poles/MechanismSingle Break

type = breakerBase

base:AssetContainer


type = mineralOil


type = mineralOil


3Poles/Base, 1Stack/Pole, 3Poles/Mech, 1Breakhttp://www.openelectrical.org/wiki/index.php?title=Circuit_breakers

3Poles/Base, 1Stack/Pole, 3Poles/Mech, 1Breakhttp://yourelectrichome.blogspot.com/2011/03/minimum-oil-circuit-breaker-mocb.html

3Poles/Base, 1Stack/Pole, 3Poles/Mech, 1Break132 kV(at Energy Austraia)http://emadrlc.blogspot.com/2012/06/132kv-mineral-oil-circuit-breakers.html

3Poles/Base, 1Stack/Pole, 3Poles/Mech, 1Breakhttp://www.bhel.com/product_services/power/switch/hlc.htm

Same question about what Medium should be attached to...

SF6 Dead Tank General Questions1. There is a variant where the 3 tanks are connected and should have only one Medium, right?2. Should a heater be modeled off each tank if it exists?3. Confirming that it makes sense to associate BreakerMechanism to each InterrupterUnit and not to whole breaker…. To remain parallel to 3 mechanism situation, right?4. Assume no need to model bushing CT apart from bushing?5. Assume no need to model control cabinet?

SF6 Dead Tank Breaker · 15.5 kV – 800+ kV· SF6 gas used for both insulation and arc-

extinguishment · SF6-filled insulated (grounded) tank containing

interrupter(s) with connections made via bushings.

3Poles/Base, 1Pole/Tank, 1Pole/Mech, 1Break 345 kVhttp://www05.abb.com/global/scot/scot245.nsf/veritydisplay/a147af5683d7462cc12579d00056e326/$file/242pmi90_2gnm110092.pdf

Mechanism is disk spring - hydraulic

1 Pole/Base3 Poles /Base

1 Pole/Tank (w/ Shared or Separate SF6)3 Poles/Tank 1 Pole/Tank3 Poles/Tank

1 Pole/Mechanism3 Poles/Mechanism 1 Pole/Mechanism3 Poles/Mechanism 1 Pole/Mechanism3 Poles/Mechanism

Single Break Double Break Single Break Double BreakSingle Break Double Break Single Break Double Break

SF6 Dead Tank Breaker Variants

3Poles/Base, 1Pole/Tank, 3?Poles/Mech, 1Break145 kVhttp://www.alstom.com/Global/Grid/Resources/Circuit%20Breakers/Documents/DT1%20Dead%20tank%20circuit%20breakers%20from%20123%20kV%20to%20145%20kV%20Brochure%20GB.pdf

Mechanism is “low energy FK3-1 spring-operated”

3Poles/Base, 1?Poles/Tank, 3Poles/Mech, 1Break40.5 kVhttp://www.openelectrical.org/wiki/index.php?title=Circuit_breakers

1Pole/Base, 1Pole/Tank, 1Pole/Mech, 2?Break550 kVhttp://www.alstom.com/Global/Grid/Resources/Circuit%20Breakers/Documents/DT2-550%20F3%20Dead%20tank%20SF6%20circuit%20breaker%20550%20kV%20Brochure%20GB.pdf

mechanism can be spring or low pressure hydraulic

SF6 Dead Tank Examples (of types different from sample templates)

Example templates provided

3Poles/Base, 1Pole/Tank, 3?Poles/Mech, 1Break72.5 kVhttp://www.alstom.com/Global/Grid/Resources/Circuit%20Breakers/Documents/DT1-72.5%20Dead%20tank%20circuit%20breaker%20for%2072.5kV.pdf

Mechanism is “low energy FK spring-operated”

3 Break

I found product references to early SF6 dead tank 500kV breakers with 3 breaks. In an older textbook there was mention of “three or four (or more) series breaks”. Does saying “n” make sense?

n Break...

3Poles/Base, 1Pole/Tank, 3?Poles/Mech, 1Break230 kVHVB (High Voltage Breakers, Inc.) HVB 242 31500 http://www.westcoastswitchgear.com/Inventory/Breaker/Details/SB5189?t=Substation%20Breaker&v=230000&p=0

3Poles/Base, 1Pole/Tank, 3?Poles/Mech, 1Break145 kVMitsubishi 120-SFMT-40EManufactured 1999 http://www.westcoastswitchgear.com/Inventory/Breaker/Details/SB5600?t=Substation%20Breaker&v=145000&p=0

3Poles/Base, 1Poles/Tank, 3Poles/Mech, 1Break48 kV

Siemens SP-48.3-40-3, manufactured 1991

http://www.westcoastswitchgear.com/Inventory/Breaker/Details/SB1698?t=Substation%20Breaker&v=48000&p=0

type = sF6

tank medium:Medium


tank assembly:AssetContainer

type = breakerSF6DeadTank

whole SF6 dead tank breaker:AssetContainer


position = 1


position = 2


position = 3


position = 4


position = 5


position = 6



+MovingContact +MovingContact +MovingContact +FixedContact+FixedContact+FixedContact

This Template3Poles/Base3Poles/Tank3Poles/MechanismSingle Break gasWeightPerTank = <gas weight>


bushing:BushingInfo



3Poles/Base, 3Poles/Tank, 3Poles/Mech, 1Break 15 kV - 38 kVhttp://www.hss-ltd.com/products/outdoor-switchgear/139/Hawker Siddeley Switchgear, “Horizon”Bushing – silicon rubber mechanism:BreakerMechanism

type = breakerBase

base:AssetContainer


Does it make sense to number both interrupters and bushings?

type = sF6








type = sF6


type = sF6


bushing 1:Bushing bushing 2:Bushing bushing 5:Bushingbushing 3:Bushing bushing 4:Bushing bushing 6:Bushing

position = 1


position = 2


position = 3


position = 4


position = 5


position = 6



+MovingContact +MovingContact +MovingContact +FixedContact+FixedContact+FixedContact



bushing:BushingInfo



3Poles/Base, 1Pole/Tank, 3Poles/Mech, 1Break38 kV - 72.5 kVhttp://www05.abb.com/global/scot/scot245.nsf/veritydisplay/4c285e8eabeedd1d852574f30044cfbf/$file/72pm_2gnm110001_new.pdf

Interrupter is self-blastMechanism is “low powered motor-charged spring”

3Poles/Base, 1Pole/Tank, 3Poles/Mech, 1Break38 kV - 72.5 kVhttp://www.energy.siemens.com/us/en/power-transmission/high-voltage-products/circuit-breaker/sf6-high-voltage-power-circuit-breakers-dead-tank.htm#content=Details

Bushing – either porcelain or compositeInterrupter – arc-assist (identical to live tank)Mechanisim “spring-spring mechanism” (identical to live tank)

type = breakerSF6DeadTank

whole SF6 dead tank breaker:AssetContainer

type = breakerBase

base:AssetContainer

This Template3 Poles/Base1 Pole/Tank, Separate SF6

3 Poles/MechanismSingle Break


type = sF6DeadTankBreaker

whole SF6 single pole dead tank breaker:AssetContainer

pole 2 bushing 1:Bushing pole 2 bushing 2:Bushing

position = 1


pole 2 interrupter 1:InterrupterUnit

pole 2 mechanism:BreakerMechanism

+MovingContact +FixedContact



bushing:BushingInfo




1Pole/Base, 1Pole/Tank, 1Pole/Mech, 2Break800 kVhttp://www.hitachi.com/products/power/TandD/gcb/

1Pole/Base, 1Pole/Tank, 1Pole/Mech, 2Break550 kVhttp://www.mvtech.com.au/catalogues/MVT%20Siemens%20HVCB.pdfhttp://www.hitachi.com/products/power/TandD/gcb/

type = breakerBase

pole 2 base:AssetContainer




position = 2













type = breakerBase


Is bushing position number important? Is bushing numbering correct?Is there an industry convention for even/odd to fixed/moving?

This Template1 Pole/Base1 Pole/Tank1 Pole/MechanismDouble Break

type = breakerBase


Is identification of relative position of base/tank assemblies meaningful?

type = sF6


type = sF6


type = sF6


Are assuming here that the namplate applies to a set of 3 base/tank assemblies. Correct?



Any need for this relationship? With only 2 interrupters, one can infer “order” from interrupter to bushing relationship?

SF6 Live Tank Examples (of types different from sample templates) Example templates provided

SF6 Live Tank Breaker· 36 kV – 800 kV· Insulator stacks provide electrical

isolation, SF6 provides arc-extinguishment

· 1 or 2 SF6-filled interrupter chamber(s) in top insulator(s) of insulator column, where one to four insulator columns can be used per pole, with interrupters in series.

SF6 Live Tank Questions1. Are there heaters on SF6 live tank breakers? Should they be modeled off each interrupterUnit if they exist?2. Assume single InterrupterUnit class is sufficiently close for both SF6 dead tank and live tank (and bulk and minimum oil and air blast)? 3. Assume that Mechanism relationship to InterrupterUnit should be like SF6 dead tank?4. Assume answer to control cabinet modeling question same as SF6 dead tank?5. Does it makes sense to model Medium on these breakers? Some of what I’ve read indicates that some models are essentially sealed at manufacture. If we use Medium, does it associate with the InterrupterUnit or the insulating stack assembly? 5. Is insulatingStackAssembly or insulatingColumnAssembly a better .type? (same for air blast circuit breaker and minimum oil)6.There are never more than 2 breaks on an insulating stack, right?7. There is no reason (or place) to model a relationship on SF6 live tank breakers that reflects the moving / fixed contact, right?8. What is the maximum number of insulating stacks?

1Pole/Base, 1Stack/Pole, 1Pole/Mech, 2Break300 kVhttp://www.mvtech.com.au/catalogues/MVT%20Siemens%20HVCB.pdf

Interrupter: double-nozzle quenching (puffer, I think)Insulator: solid porcelainMechanism: hydraulic operated

1Pole/Base, 1Stack/Pole, 1Pole/Mech, 1Break??? kVhttp://www.mvtech.com.au/catalogues/MVT%20Siemens%20HVCB.pdf

1Pole/Base, 1Stack/Pole, 1Pole/Mech, 2Break400 kVhttp://www.skm-eleksys.com/2012/02/sf6-circuit-breaker-working.html

1Pole/Base, 1Stack/Pole, 1Pole/Mech, 2Break420 kVhttp://tdworld.com/sponsored-articles/world-high-voltage-power

1Pole/Base, 4Stacks/Pole, 1Pole/Mech, 4Break800 kVAlstom FXPower System Analysis and DesignBy J. Duncan Glover, Mulukutla Sarma, Thomas Overbye

Mechanism: hydraulic (or maybe spring if actually FXT)



1 Pole/Mechanism (rare)3 Poles/Mechanism 1 Pole/Mechanism3 Poles/Mechanism






n Stacks/Pole





Stacks)


3 Stacks/Pole





for other Stacks)




...

SF6 Live Tank Breaker Variants

Are SF6 live tanks ever configured with combinations of single and double break stack assemblies on the same base (pole)?

1Pole/Base, 1Stack/Pole, 1Pole/Mech, 1Break245 kVToshiba GSPF 245 HP??

Interrupter: pufferMechanism: spring

Are thereSF6 live tank breakers where all 3 poles are on one base that have double breaks?

type = sF6








type = breakerSF6LiveTank


position = 1


position = 2


position = 3








3Poles/Base, 1Stack/Pole, 3Poles/Mech, 1Break72.5 kV – 145 kV

http://www.energy.siemens.com/us/en/power-transmission/high-voltage-products/circuit-breaker/3ap1-fg-live-tank-circuit-breaker.htm

Interrupter: arc-assistedInsulator: porcelain or compositeMechanism – stored-energy spring

3Poles/Base, 1Stack/Pole, 3Poles/Mech, 1Break36 kV – 84 kV

http://www.energy.siemens.com/us/en/power-transmission/high-voltage-products/circuit-breaker/sf6-hv-circuitbreaker-livetank.htm

Insulators – “Brown/Grey” or silicon rubberMechanism – motor charged spring operating mechanism (1 or 3)


type = breakerBase

base:AssetContainer


type = sF6


type = sF6


type = breakerBase


type = sF6LiveTankBreaker


position = 1


position = 2








type = sF6

pole 2 interrupter 2 medium:Medium

1Pole/Base, 2Stacks/Pole, 1Pole/Mech, 4Break800 kVhttp://www.mvtech.com.au/catalogues/MVT%20Siemens%20HVCB.pdf

Interrupter: self-compression (2 moveable contacts)Mechanism: spring drive

This Template1 Pole/Base2 Stacks/Pole1 Pole/Mechanism4 Break

Is position designation (within insulating stack assembly) for InterrupterUnits sufficient that the connection (fixed contact to moving contact) between interrupers isn’t necessary?(Same situation exists for air blast circuits breakers)

Are assuming here that the namplate applies to a set of all 3 single pole assemblies. Correct?

type = breakerBase


type = sF6


position = 3


position = 4


pole 2 interrupter 4:InterrupterUnitpole 2 interrupter 3:InterrupterUnit

type = sF6



pole 1 insulating stack assembly 1:AssetContainer



type = breakerBase










Assume all interrupters on same pole have same mechanism, regardless of insulating stack?

Is identification of relative position of single pole assemblies meaningful?

type = sF6



type = sF6


type = sF6



type = sF6


type = sF6



type = sF6


type = sF6



type = sF6


pole 1 mechanism:BreakerMechanism pole 3 mechanism:BreakerMechanism

type = sF6




1 Pole/Mechanism3 Poles/Mechanism 1 Pole/Mechanism3 Poles/Mechanism



Air Blast Circuit Breaker Variants

Air Blast Examples (of types different from sample templates) Example templates provided

Air Blast Circuit Breaker· 132 kV –700 kV· Insulator stacks provide electrical

isolation, pressurized air provides arc-extinguishment

· 1 or 2 air-filled interrupter chamber(s) in top insulator(s) of insulator column, where one to ten insulator columns can be used per pole, with interrupters in series.

Air Blast Questions1. Does it makes sense to model Medium on these breakers? If we use Medium, does it associate with the InterrupterUnit or the base or a reservoir?




1Pole/Base, 2Stack/Pole, 1Pole/Mech, 4Break500 kVhttp://www.openelectrical.org/wiki/index.php?title=File:Air_CB_500_KV.gif

1Pole/Base, 4Stack/Pole, 1Pole?/Mech, 8Break300 kVHigh-Voltage Engineering: Theory and Practice, Second Edition, Revised and ...By Mazen Abdel-Salam

3 Stacks/Pole





for other Stacks)




3Poles/Base, 1Stack/Pole, 3Poles/Mech, 1Break71 kV - 84 kVhttp://www.fujielectric.com/company/tech_archives/pdf/11-04/FER-11-04-104-1965.pdf

...

1Poles/Base, 5Stacks/Pole, 1Poles/Mech, 10Break420kVhttp://tdworld.com/sponsored-articles/world-high-voltage-power

1Pole/Base, 2Stack/Pole, 1Pole/Mech, 4Break?? kVAlstom PKhttp://www.alstom.com/Global/Grid/Resources/Documents/Service/Alstom%20Grid%20-%20Circuit%20breaker%20lifecycle%20management.pdf

n Stacks/Pole





Stacks)


It seems that air blast breakers with multiple stack assemblies/pole don’t have only one interrupter on the stack. Is this true?

type = air

medium:Medium







type = breakerAirBlast

whole air blast breaker:AssetContainer

position = 1


position = 2


position = 3







type = breakerBase

base:AssetContainer

3Poles/Base, 1Stack/Pole, 3?Poles/Mech, 2Break??kVPaul B

pole 1 interrupter 2:InterrupterUnitpole 1 interrupter 1:InterrupterUnit pole 3 interrupter 2:InterrupterUnitpole 3 interrupter 1:InterrupterUnitpole 2 interrupter 2:InterrupterUnitpole 2 interrupter 1:InterrupterUnit

Should this type be .breakerReservoir not .breakerBase?Should we model a reservoir off the base?

type = breakerBase


type = sF6LiveTankBreaker

whole air blast breaker:AssetContainer

position = 1


position = 2








This Template1 Pole/Base3 Stacks/Pole1 Pole/Mechanism6 Break

Are assuming here that the namplate applies to a set of all 3 single pole assemblies. Correct?

position = 3


position = 4







type = breakerBase


type = air

pole 1 medium:Medium









Assume all interrupters on same pole have same mechanism, regardless of insulating stack?

Is identification of relative position of single pole assemblies meaningful?

1Pole/Base, 3Stack/Pole, 3?Poles/Mech, 6Break?? kVPaul B





type = air





position = 5


position = 6


Does this particular breaker have one mechanism for each pole or one for the whole breaker?

type = breakerBase


pole 1 interrupter 2:InterrupterUnitpole 1 interrupter 1:InterrupterUnit pole 1 interrupter 4:InterrupterUnitpole 1 interrupter 3:InterrupterUnit pole 3 interrupter 2:InterrupterUnitpole 3 interrupter 1:InterrupterUnit pole 3 interrupter 4:InterrupterUnitpole 3 interrupter 3:InterrupterUnit

pole 1 mechanism:BreakerMechanismpole 3 mechanism:BreakerMechanism

pole 1 interrupter 6:InterrupterUnitpole 1 interrupter 5:InterrupterUnit pole 3 interrupter 6:InterrupterUnitpole 3 interrupter 5:InterrupterUnit

type = air


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