Switchgear Prod Guide0082003 - TNB

2y ago
16 Views
2 Downloads
4.78 MB
24 Pages
Last View : 1m ago
Last Download : 2m ago
Upload by : Milo Davies
Transcription

Product GuideProtection and ControlUNDERGROUND DISTRIBUTION SWITCHGEAR Solid Dielectric Switchgear- No Oil, No Gas, No Maintenance- Fully Sealed Submersible Deadfront Construction Small Footprint Not Position Sensitive Vault, Subsurface, Padmountand Riser Pole Installations Flexible, Modular Building Blocksfor Multiple Applications- MVS Molded Vacuum Switches- MVI Molded Vacuum Interrupters- MCAN Molded Fuse Canisters Applications- Switching and Sectionalizing- Overcurrent Protection- Automatic Source Transfer

UNDERGROUND DISTRIBUTION SWITCHGEAROverviewProtection and Control ProductsNowadays electric underground distribution systems demand high performance in the form of improvedreliability and power quality, reduced operational and maintenance costs, and flexibility of operation.These can be accomplished by sectionalizing feeders, installing equipment with minimal maintenance/installation costs, installing protection equipment, installing automatic source transfer packages, and/orproviding ways to monitor the system and quickly locate a fault.FEATUREBENEFITn EPDM Molded Rubber Construction withn Fully sealedn Fully submersibleStainless Steel Hardware and MechanismBoxesn Vacuum Switching and VacuumInterruptionn Maintenance-freen Small foot-printn Lightweightn NO gas, NO oil, NO hasslen Deadfront Constructionn Insulates, shields and eliminates exposed live partsn Compact and Light Weightn Fits in tight spacesn Suitable for padmount, subsurface, vault or riser poleinstallationsn Smaller foootprint compared to other switchgearn Non-position sensitiven Can be installed almost anywhere and in anyposition (e.g. hanging from ceilings, wall-mounted,mounted at an angle, riser pole mounted)n Modular constructionn Allows any combination of fused, switched andinterrupter ways on one piece of switchgear up to 35kVn The knowledge and training acquired can be applied tomultiple installations.n Electronic controls for protection andautomatic source transfer applicationsn Flexibility of settings and operation in differentlocations throughout the distribution systemn Tailored to fit a wide variety of system applicationsn Motor operators for remote/local open/close operation of three-phase switchedor interrupter ways2n Allow remote reconfiguration of loops andsectionalizing of feedersn Allow automatic or manual source transfern Can be used with a wide variety of RTUs andcommunication devices

UNDERGROUND DISTRIBUTION SWITCHGEAROverviewElastimold Switchgear is the result of extensive field experience in underground distribution systemscombined with state of the art know-how, and top-notch customer support. The result? Equipment thatfits multiple application needs and contributes to improve the reliability and operating performanceof underground distribution systems up to 35kV. Elastimold Switchgear is fully submersible andfeatures deadfront construction. Solid EPDM insulation and vacuum switching/interruption translateinto small footprint, no maintenance products. With a wide range of configurations suitable for feedersectionalizing/protection, loop sectionalizing/protection, riser pole installations, and automatic sourcetransfer, Thomas & Betts is able to provide the right solutions to overcome your underground distributionsystem performance challenges.PADMOUNTSUBSURFACEVAULTRISER POLESWITCHGEAR BUILDING BLOCKSWhether it is a standard or a custom application, Thomas & Betts has the right combination of componentsand expertise to fit your needs. The modularity and flexibility of Elastimold Switchgear allows the user tocombine the different individual components into products that satisfactorily improve the reliability andperformance of distribution systems. Three basic components form the basis for Elastimold Switchgear:nSingle-phase and Three-phase Molded Vacuum Switches (MVS)nSingle-phase and Three-phase Molded Vacuum Interrupters (MVI)nFuse Canisters (MCAN)These components combined with electronic controls, motor operators, and SCADA ready controls makethe “building blocks” of Elastimold Switchgear.3

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksElastimold MVS Molded Vacuum Switches are spring energy,load switching devices capable of making, carrying andinterrupting load currents through 600 amperes on 5-38kVdistribution systems. The MVS combines vacuum switchingwith high dielectric strength EPDM rubber insulation, providingcompact, light-weight submersible switching. Units includemolded-in elbow connection interfaces, spring energy mechanismand are available in both single and three phase models. Units aremanually operated with a hot-stick. Motor operator, SCADA andAuto-Transfer Control options are available.SINGLE PHASE SWITCHESApprox. Weight 30 lbs.MVSTHREE PHASE SWITCHESApprox. Weight 135 lbs.Available with 600 amp one piece bushingsor 200 amp wells on either/both terminals4Available with 600 amp one piece bushingsor 200 amp wells on either/both terminals

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksCERTIFIED TESTS AND PERFORMANCEMVS loadbreak switches have beendesigned and tested per applicableportions of IEEE, ANSI, NEMA and otherindustry standards including:n ANSI C37.71 Standard for Subsurfaceand Vault Load Interrupting Switches.n ANSI C37.72 Standard for PadmountedLoad Interrupting Switchesn IEEE 386 Standard for SeparableConnectors and Bushing Interfacesn IEC 265 International Standards forLoad Interrupting Switchesn ANSI C57.12.28 Standard forPadmount EnclosuresRATINGSMaximum Design VoltageFrequencyBIL Impulse WithstandOne Minute AC WithstandFifteen Minute DC WithstandLoad Interrupting & Loop SwitchingTransformer Magnetizing InterruptingCapacitor or Cable Charging InterruptingAsymmetrical Momentary and3 Operation Fault CloseSymmetrical One Second RatingContinuous Current8 Hour Overload Current27 kV50/60 Hz125 kV60 kV78 kV600 A21 A40 A38 kV50/60 Hz150 kV70 kV103 kv600 A21 A40 A20,000 A12,500 A600 A900 A20,000 A12,500 A600 A900 A20,000 A12,500 A600 A900 AAPPLICATION INFORMATIONConstruction:Submersible, corrosionresistant, fully shieldedAmbient Temperature Range:-30 to 40 degrees centigradeMechanical Endurance:2000 operationsCable connectionbushings43ºOpenposition15.5 kV50/60 Hz95 kV35 kV53 kV600 A21 A40 AClosedpositionOperatinghandleC Spring operatingmechanism containedwithin 304 stainless steelhousingD Insulateddrive rodassemblyA Vacuum interruptercontact systemB Molded EPDM rubberinsulation andshielding5

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksElastimold MVI Molded Vacuum Fault Interrupters are devicescapable of making, carrying and automatically interruptingcurrents through 12,500 amperes symmetrical on 5-35kVdistribution systems. The MVI combines vacuum interrupters,programmable electronic self powered controls and highdielectric strength EPDM rubber insulation, to provide compact,light-weight submersible over-current protection. Units includemolded-in elbow connection interfaces, trip free mechanism,and are available in single phase and three phase models.Units are self powered and include current sensing and electroniccontrol. The control is field programmable with a wide range ofTime-Current Characteristic (TCC) curves and trip settings. TheTCC curve provide predictable tripping for ease of coordinationwith up-stream and/or down-stream protective devices. Thecontrol monitors the circuit condition and sends a signal tothe tripping mechanism if the programmed parameters areexceeded.Motor operators and controls are available, and allowreconfiguration of radial feeders or loops, manually or via SCADA.FRONT VIEW SINGLE-PHASE200 AMP WELLS600 AMP BUSHINGS6FRONT VIEW THREE-PHASEMVI

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksCERTIFIED TESTS AND PERFORMANCE RATINGSMVI Molded Vacuum Fault Interrupters havebeen designed and tested per applicableportions of IEEE, ANSI, NEMA and otherindustry standards, including:n IEEE 386 Standard for SeparableConnectors and Bushing InterfacesVoltage ClassMaximum Design VoltageFrequencyBIL Impulse WithstandOne Minute AC WithstandFifteen Minute DC WithstandLoad Interrupting & Loop SwitchingTransformer Magnetizing InterruptingCapacitor or Cable Charging InterruptingSym./Asym. Momentary and Fault CloseSymmetrical One Second RatingContinuous CurrentSym./Asym. Interrupting Capabilityn IEC 265 International Standards for LoadInterrupting SwitchesAPPLICATION INFORMATIONn ANSI C37.60 Standard for Fault Interruptersn ANSI C37.71 Standard for Subsurface andVault Load Interrupting Switchesn ANSI C37.72 Standard for PadmountedLoad Interrupting Switchesn ANSI C57.12.28 Standard for PadmountedEnclosures15.5 kV17 kV50/60 Hz95 kV35 kV53 kV600 A21 A40 A12.5/20 kA12.5 kA600 A12.5/20 kA27 kV29 kV50/60 Hz125 kV60 kV78 kV600 A21 A40 A12.5/20 kA12.5 kA600 A12.5/20 kA35 kV38 kV50/60 Hz150 kV70 kV103 kV600 A21 A40 A12.5/20 kA12.5 kA600 A12.5/20 kAEndurance:2,000 Amperes Sym. Interrupting44 operations(15-20% of maximum rating)6,000 Amperes Sym. Interrupting Amps56 operations(45-55% of maximum rating)12,500 Amperes Sym. Interrupting Amps16 operations(90-100% of maximum rating)Mechanical2000 operationsConstruction:Submersible, corrosion resistant, fully shieldedAmbient Temperature Range: -30 to 40 degrees centigrade7

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksThe Molded Vacuum Interrupters are provided with self-powered electronic control packages, requiring nobatteries or external power. Field-selectable Fuse or Relay Curves and Trip Settings are available. The controlsmonitor current through the interrupter, and if an overcurrent condition is detected, send a signal to the vacuuminterrupters to trip open and interrupt the fault. Depending on the application, four electronic control options areavailable for the MVI:INTERNAL CONTROLThis control is integral to the unit (no separate control box) andmolded inside the current sensing device. It is accessible viacomputer connection to view or modify settings. This control isused on ganged three-phase or single-phase MVI mechanisms.Phase and Ground trip, as well as Inrush restraint are available.The E-Set software allows the user to connect to the internalcontrol either in the shop or the field to program or changesettings. MVI-STP programming connector is required to connectbetween the PC and the MVI. With a computer connected to theMVI control the user can view real-time currents, the numberof overcurrent protection operations, current magnitude of thelast trip, and the phase/ground fault targets. This is the defaultcontrol option.EXTERNAL CONTROL WITH SINGLE/THREE-PHASE TRIP SELECTION (Style 10)This control is mounted external to the mechanism and providesthe ability to select TCCs by setting dip switches on the frontpanel. Each phase can be assigned a different minimum tripsetting by means of manual rotary switches. This control is usedon three single-phase MVI mechanisms.EXTERNAL CONTROL WITH PHASE AND GROUND TRIP (Style 20)This control is mounted external to the mechanism and providesthe ability to select phase minimum trip (one for all three phases),time delay for phase tripping, ground trip as a percent of phaseminimum trip, and ground trip delay by means of manual rotaryswitches. This control may be used on ganged three-phase orthree single-phase MVI mechanisms.8

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksEXTERNAL CONTROL WITH THREE-PHASE TRIP ONLY (Style 30)This control is mounted external to the mechanism and providesthe ability to select phase minimum trip (one for all three phases)by means of a manual rotary switch. It also has an RS232 port forconnection to a PC to view the last trip data. This control is usedon ganged three-phase or three single-phase MVI mechanisms.CURVESRelay CurvesCurve #01020304050607080910111213141617Curve Reference 6MVI-TCC-17Fuse CurvesCurve TypeE SlowE StandardOil Fuse CutoutKKearney QACooper EFCooper NX-CCO-11-1CO-11-2TCO-9-1CO-9-2Cooper 280ARXFKearney KSGE RelayCurve #5455565758596061Curve Reference 8MVI-TCC-59MVI-TCC-60MVI-TCC-61Curve TypeE SlowE StandardOil Fuse CutoutKKearney QACooper NX-CTKearney KSMINIMUM TRIP SETTINGSRelay Curves30 Amperes40 Amperes50 Amperes70 Amperes90 Amperes120 Amperes150 Amperes200 Amperes250 Amperes350 Amperes450 Amperes600 AmperesFuse Curves10 Amperes20 Amperes30 Amperes40 Amperes50 Amperes65 Amperes80 Amperes100 Amperes125 Amperes150 Amperes175 Amperes200 Amperes9

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksThe Elastimold MCAN Fuse Canister is a compact, lightweightEPDM molded rubber Fuse Enclosure Package. MCAN Fuse Canistersare maintenance free, completely sealed and submersible. Designsare deadfront using molded rubber to insulate, shield and eliminateexposed live parts. Units are ideally suited for padmount, subsurfaceor vault applications. Construction is modular to allow for variouselbow connections or direct attachment to equipment mountedbushings. The various end fittings and bushings allow fuse canisters tobe applied throughout the system in switchgear, junctions, transformers, cable runs and tap installations. Standard 300 series stainless steelmounting brackets accommodate a variety of mounting arrangements.The MCAN will accommodate and has been thoroughly tested withElastimold EFX and Hi-Tech Trans-Guard FX fuses.200 AMP. WELLSMCAN600 AMP. BUSHINGSDIMENSIONS IN INCHESCatalog Number Figure200 AMP. WELL & 600 AMP.ELBOW END MODULE10600 AMP. BUSHING & 600 AMP.ELBOW END 2220.09

UNDERGROUND DISTRIBUTION SWITCHGEARBuilding BlocksCERTIFIED TESTS AND PERFORMANCEFUSE CANISTER RATINGSElastimold Molded Fuse Canisters and EFXfuses have been designed and tested perapplicable portions of IEEE, ANSI, NEMA andother industry standards including:Voltage ClassMaximum Line to Ground VoltageFrequencyBIL Impulse WithstandOne Minute AC WithstandFifteen Minute DC WithstandMaximum Continuous CurrentMomentary CurrentConstruction:n ANSI C37.40 Standard for CurrentLimiting Fuse Service Conditionsn ANSI C37.41 Standard for Current LimitingFUSE RATINGSFuse Design & Testingn ANSI C37.47 Standard for Current LimitingFuse Ratings & Specificationsn ANSI/IEEE 386 Standard for SeparableConnectors & Bushing Interfaces15kV25 kV10.0kV17.2kV50/60hz50/60hz95 kV125 kV34 kV40 kV53 kV78 kV200 Amps*200 Amps*10kA*10kA*Submersible, corrosion resistant, fully shieldedNominal Voltage Rating (kV)8.315.5Rated Maximum Voltage (kV)8.3 or 10.015.5 or 17.2Frequency50/60hz50/60hzRated Continuous Current, Amperes3-50 3-50 Rated Maximum Interrupting Current50,00050,000 (Sym. Amperes)Ambient Temperature Range: –30 to 140 C for the 2.25” diameter fuse23.023.050/60hz6-50 50,000* Without Fuse Without de-rating 3 amp fuse was tested @ 44kANote: See Catalog PC-Fuses for additional details on MCAN Fuses.Cable ConnectionBushings or WellsEnd Plug with EyeLatching LeverMolded EPDM RubberInsulation and ShieldingMounting FeetEFX Full Range Current LimitingFuse11

UNDERGROUND DISTRIBUTION SWITCHGEARProductsElastimold Switchgear building blocks as described in the previous section can be combined into awide arrangement of configurations, and applied to solve different challenges in the distribution system.Elastimold Switchgear products can be classified in three categories according to the function theyperform:n Switching and Sectionalizing Equipmentn Overcurrent Protection Equipmentn Automatic Source Transfer EquipmentThese products can be applied in different types of installations:n Padmountn Subsurface / Wet or Dry Vaultsn PoleThe switching or manually sectionalizing of loads can be accomplished with the use of Molded VacuumSwitch (MVS) modules. The simplest manual sectionalizer is a single MVS switch, which can be installed ina vault, pole, or inside a padmount enclosure. One of the most popular applications of this sectionalizer isas a replacement of existing oil fuse cutouts. Two, three and four-way units are also available in vault andpadmount styles. These would aid in the manual reconfiguration of distribution loops by installing themat the open point in the circuit.Overcurrent protection is accomplished using Molded Fuse Canister (MCAN) or Molded VaccumInterrupter (MVI) modules. These can be used in combination with MVS modules. The simplest productis a single MVI unit, which can be installed in a vault, pole, or inside a padmount enclosure. One of themost popular applications of this configuration is as a replacement of existing oil fuse cutouts. Anotherapplication could be three MCAN fuses installed inside a padmount enclosure to protect a tap load. Two,three, and four-way units are also available in any combination of MVI, MCAN and MVS modules, and invault and padmount styles. These would be applied in underground loops to aid in the sectionalizing ofthe main feeder and to provide protection to the loads along the loop.Automatic Source Transfer packages are used to ensure the shortest interruption of power possible tocritical loads such as hospitals, factories, and financial institutions. These packages switch the load fromits normal source to a backup source of power in the event that the normal (preferred) source is lost.Elastimold switchgear combines MVS and MVI modules with an Automatic Transfer Control and motoroperators to provide a complete package.12

UNDERGROUND DISTRIBUTION SWITCHGEARProductsMULTI-WAY UNIT CONSTRUCTIONMulti-way vault and padmount units are built using MVS, MVI, andMCAN modules as required by the application. These are mountedonto the ES Multi-way common bus system and assembled on a freestanding, floor mounted frame. At this stage the product is ready to beused in vault installations.Common Bus AssemblyVault Style UnitFor padmount installations, a doublesided, drop-over, painted, mild-steelenclosure is provided. Munsell Green7GY 3.29/1.5 is the standard enclosurecolor. Other colors are available uponrequest. Painted stainless steel orfiberglass enclosures are available asoptions.Padmount Style Unit13

UNDERGROUND DISTRIBUTION SWITCHGEARProductsPADMOUNT UNIT: Tap (Load) SideTop lifts up for ease ofoperation and fuse removalDrop-over mild or stainlesssteel enclosures available *MVI mechanism on1Ø protection tap(3Ø also available)MCAN fused canister tapInternal electronic controland current sensing device(3-Phase MVI and Externalcontrols also available)Parking standGround rod200 amp wells (shown)600 amp bushings available*Consult your local representative for fiberglass enclosure optionsThe remaining pages of this Product Guide are divided into three sections according to the function aproduct performs:n Switching and Sectionalizingn Overcurrent Protectionn Source TransferFrom the following table, select the function and application specific to your system needs. The last columnwill indicate the product to be used for the specific selection. With this information, go to the appropriatesection and finalize the construction of the catalog number that you would need to order.14

UNDERGROUND DISTRIBUTION SWITCHGEARProductsThe following graph shows how to construct the catalog number for multi-way switchgear or transferpackages. Catalog numbers are shown on Tables 1-3 for the most common configurations:EXAMPLE: The catalog number for an autotransfer package for padmount installation on a 3-phase, 27kVsystem, with two MVI protected taps, 600 Amp terminals and standard mild-steel enclosure is:ATD324-AAPP-6666Consult your local representative on multi-way configurati

APPLICATION INFORMATION. Endurance: 2,000 Amperes Sym. Interrupting (15-20% of maximum rating) 44 operations 6,000 Amperes Sym. Interrupting Amps (45-55% of maximum rating) 56 operations 12,500 Amperes Sym. Interrupting Amps (90-100% of maximum rating) 16 operations Mechanical 2000 operations

Related Documents:

Position the hydraulic breaker in a stable and flat place so as to prevent it from over turning. 7 (6) SPECIFICATIONS ‘‘ M ” Series ITEM Total Length Weight Chisel Operating specs. Appropriate Excavator TNB-2M TNB -5M TNB-6M MODEL TNB -08M TNB-1M TNB-3M TNB -4M Without c

Hydraulic Breakers [6]Point Styles & Special Application Bits Lube-Systems and Guards STRIKERMAXX LUBE-SYSTEMS and GUARDS StrikerMaxx Mini TNB-2M-4M Breaker Mounted StrikerMaxx Compact TNB-5M-110 Breaker Mounted StrikerMaxx Compact Guard TNB-5M-110 Breaker Mounted StrikerMaxx 2 TNB-151-400

A-Drawout AKD-6 switchgear B-Drawout substructure D-Drawout AKD-8 switchgear and substructure S-Stationary Fig. 1. AKR breaker type designation . com 3 BCS Switchgear Inc. Switchgear Circuit Breakers Parts Tech Support bcsswitchgear.com 888.599.0486 Need Help? 888.599.0486 · ;: .

Switchgear Support Ltd specialise in the supply of components and services for MV/HV legacy switchgear, typically originally manufactured between the 1950’s and 1990’s. Predominantly, these activities are focused on the Brush Switchgear and South Wales Switchgear

1. A new switchgear architecture for modern technology 1.1 Philosophy The standard IEC 60298 for AC metal-enclosed switchgear and controlgear , 1 - 52 kV, defines three different types of architectures: Metal-clad, compartmented and cubicle switchgear and controlgear. With the new switchgear AX1 a

38 kV Metal-Clad Switchgear Eaton's VacClad switchgear family is designed for use in applications with distribution voltages up to 38 kV maxi-mum. Typical applications include not only new construction but also replace-ment for older air-break, minimum oil or SF6 switchgear. The circuit breaker and switchgear will meet industry require-

Bigtable [19], and Megastore [8] all run on Borg. For this paper, we classify higher-priority Borg jobs as “production” (prod) ones, and the rest as “non-production” (non-prod). Most long-running server jobs are prod; most batch jobs are non-prod. In a representative cell, prod jobs are allocated about 70% of the total CPU resources and .

This paper aims to extend this range and introduces a novel engineering application of Origami: Folded Textured Sheets. Existing applications of Origami in engineering can broadly be catego-rized into three areas. Firstly, many deployable structures take inspiration from, or are directly derived from, Origami folding. Examples are diverse and range from wrapping solar sails [Guest and .