solid dielectric, three phase reclosers

• Reliable performance

• Control flexibility includingSEL-351R, Falcon™, 651R, 351S, GE URC and more

• Operator safety includingmechanical block

• Maintenance-free operation

• Overhead, substation and dead-front padmount designs

• Ease of installation

• Ease of automation

• Internal voltage sensing

• Application flexibility

• Various module configurationsfor circuit connection flexibility

• Smart Grid/Lazer™ solutions

Solid Dielectric,Three Phase Reclosers

Providing electronic, three phase overcurrent protection for systems rated through

38kV, 800A continuous current, 12.5kA symmetrical interrupting

CATALOG VS11January, 2011

Viper_S_2010 r4_6125_Viper_S_2008 2/17/11 8:45 AM

G&W’s Viper-S solid dielectric, threephase reclosers combine the timeproven reliability of electronicallycontrolled, vacuum fault interrupterswith the maintenance benefits of asolid dielectric insulated device. Thereclosers are designed for threephase automatic or manual tripoperation providing overcurrent protection for systems rated up to38kV maximum, 800A continuous,and 12.5kA rms symmetrical interrupting.

FEATURESReliable performance - Viper-Sreclosers utilize G&W’s time provenepoxy polymer system to fullyencapsulate the vacuum interrupters.This system provides excellent insulation properties while providingfully shielded, void-free construction.All modules are UV protected and100% factory tested for partial discharge. The Viper-S recloser utilizes the latest in magnetic actuator technology. The interrupterand actuator assembly are testedannually for 10,000 mechanical operations to ensure a long servicelife. If AC power is lost, the recloserhas enough stored energy to triponce, after the control sends the tripcommand, within a 24 hour period.

Control Flexibility - Viper-Sreclosers are designed to work witha variety of different controls including Schweitzer’s SEL-351R,Falcon™, SEL-651R, SEL-351S,GE’s URC and others.

Operator Safety - Vacuum inter-rupters are sealed within a soliddielectric insulation. A hookstickoperable manual trip and lockouthandle prohibits operation eitherfrom the control or remotely. Amechanical blocking device furtherassures against accidental closethrough the handle. An open andclosed contact indicator verifies con-tact position. Contact status andlockout condition can also be verifiedat the control.

Maintenance-free - Solid dielectricinsulation provides a maintenance-free installation. Electronicequipment associated with the

operation of the magnetic actuator(s)are located in the control.

Ease of Installation - The Viper-S islightweight and compact. Site-readydesigns provide all accessories including bracket, arresters andvoltage transformers preassembledprior to shipment significantly reducing installation time. One sin-gle control cable brings all current,breaker status and trip/close information into the control.

Application Flexibility - Units aredesigned for overhead, substationand padmount applications.Polemounted units can be equippedwith either horizontal or vertical insulators. Removable silicone insulators are standard for overheadapplications. This feature permitseasy field replacement if an insulatoris damaged. Higher external BILrated insulators can also be retrofitted if necessary.

Smart Grid / Lazer AutomationSolutions - The Viper-S is automationready, simplifying conversion for anyfuture automation requirements. Amulti-ratio current transformer isencapsulated within the module. Thecurrent transformer is provided atratios of 500:1 and 1000:1. Inputs to

the control are field changeable. CT accuracy is +/-1%. Optional capacitive style voltage sensorsencapsulated within each modulepermit voltage reading for networkreconfiguration while eliminating theneed for add-on sensors and cabling.Voltage amplitude sensing accuracyto +/- 5% over the temperature range+65°C through -20°C when tested asa system. External voltage and current sensors can also be useddepending on application requirements.

Complete Lazer automation packages are available offering apre-engineered solution for applica-tions requiring intelligent automaticswitching and power restoration. Thepackages feature one or more pro-tective relays, (typically Schweitzer),equipped with distribution and com-munication capabilities. Availablecommunication devices include fiberoptic transceivers and wireless radio.

CATALOG NUMBER15.5kV . . . . . . . .VIP378ER-12S27kV . . . . . . . . .VIP388ER-12S38kV . . . . . . . . .VIP398ER-12SApproximate weight less bracket = 325 lbs. (148 kg).

15kV Viper-S recloser with polemount center bracket.

Viper_S_2010 r4_6125_Viper_S_2008 2/17/11 8:45 AM Page 2

OPERATION OPTIONS Dead-line operation - Permits usingthe batteries located in the controlfor operation of the recloser if ACcontrol power is lost. A remote status signal reports the operationalstatus of the interrupter power supply permitting remote indicationof the control’s capability to open orclose the recloser.

Custom Relay Solutions (CRS) -The CRS option permits using48VDC or 125VDC control logicvoltage as an alternative totraditional 14-pin SEL, Cooper andGE controls which use 24VDC forcontrol logic. Recloser power is notaffected. This flexibility reducesinstalled cost for retrofit projects bylimiting the need to change relays orreplacing the input/output boards.

Internal voltage sensing - Permitsvoltage reading for network reconfig-uration applications and provides asecondary analog 120V AC outputaccepted by most relays.

MANUAL TRIP OPERATIONOperation of the hookstick operablemanual trip handle trips and locks outthe recloser. A contact position indicator is provided indicating openor closed status of the contacts.Module contact status is also displayed at the control. Operation ofthe manual trip handle disables anylocal or remote closing operation untilthe handle is reset. A mechanicalblocking device further assuresagainst accidental close through thehandle. The handle is operable fromground level. Once reset, the recloser can be closed from thecontrol.

CONTROL CONNECTIONSTwist style connectors make cableconnection between control and recloser extremely easy. Thetraditional 14-pin recloser controlconnector design is the same asother “Cooper” style recloserspermitting easy change out of previously installed controls and/orreclosers.

CONTROL CAPABILITIESVarious style controls are availabledepending upon application require-ments. Typical control settingsinclude:• Minimum trip for phase, ground

and sensitive ground faults.• Numerous preprogrammed and

user-defined time current curves for sensing phase or ground faults.

• Three independent recloser interval times. Capable of up tofour shots to lockout.

• Reset time.• Sequence coordination.• Cold load pickup.• Advanced parameters. Refer to

control specifications for more details.

Page 3

VacuumInterrupter

Current transformer/ voltage sensor

MagneticActuator

Manual trip handleContact position indicator

EpoxyEncapsulation

DriveAssembly

Control cable connections

Schweitzer SEL-351R control


POLEMOUNT CENTER BRACKETDimensions are approximate. Do notuse for construction. Galvanized brackets are standard. Stainless steel is available.

POLEMOUNT SIDE BRACKETSDimensions are approximate. Do not use for construction. Galvanized brackets are standard. Stainless steel is available.

Horizontal side mountingbrackets with “Z” modulesare ideal for overhead configurations where all threephase conductors are on oneside of the pole.

15.5kV 27kV 38kV

A 42 (1067) 47 (1204) 51 (1295)

B 39 (991) 44 (1118) 48 (1219)

Approx. Dimensions - ins. (mm)

Approx. Dimensions - ins. (mm)

15.5kV 27kV 38kV

A 42 (1067) 50 (1270) 58 (1473)

35”

(889mm)

INSULATOR FLEXIBILITYPolemounted units can be equippedwith either horizontal or vertical insulators. Removable silicone insulators are standard for overheadapplications. This feature permitseasy field replacement if an insulatoris damaged. Higher external BILrated insulators can also be retrofittedif necessary. Shown with horizontal

insulator configuration.


Polemount Site-Ready AssemblyPreassembly of all auxiliary equipment significantly reduces recloser preparationtime for product installation in the field.Includes potential transformers or voltagetransformers, arresters, aerial lugs,terminal/junction boxes, wildlife protectors andall associated wiring. Control cables are connectorized on both ends and cut to lengthfor a cleaner installation. User identificationmarkers can be applied to each unit prior toshipment further reducing installation time.

15.5kV 27kV 38kVA 54 (1378) 58 (1473) 62 (1575)

Approx. Dimensions - ins.(mm)

WildlifeProtectors

PrimaryWiring

LightningArresters

PowerTransformer

User IDMarkers

ShippingSupport

PackagedControl Cable


SUBSTATION MOUNT Dimensions are approximate. Do not use for construction.

Picture shows 45° angle mounting forapplications requiring the same loadand line side connector height.

Bottom View

Frames are adjustable. Standardframes are galvanized. Stainlesssteel is available. Custom framesavailable including conversion fordirect replacement of existingreclosers.

Dead-tank construction makes itideal for substation circuit breakerapplications and ensures the shielded solid dielectric module isgrounded to earth pote ntial.

Photo shows a custommounted frame required forreplacement of previouslyinstalled oil filled equipment.

For applications where extendedcreepage is required, larger insulators can be applied up to940mm and 150kV BIL. Externalbushing CTs can be mounted atthe base of the insulator wherethey can be used for metering orrelay protection schemes like busdifferential. The mechanism housing for substation applicationsis rated IP46 for maximum protection from water intrusion.


Padmount Reclosers with Front AccessDimensions are approximate. Do not use for construction. Galvanized steel enclosures are standard. Stainless steel is available. Drawing shows a front accessdesign to cables and operator. The control is mounted in a separate side enclosure.C modules are shown.

PADMOUNT APPLICATIONSFor applications where space is limitedat the substation or where undergroundfeeders require protection, Viper-Ssolid dielectric reclosers can providean ideal solution using a dead-frontpadmount design. In this configuration,the cable connections can be providedwith either a standard IEEE apparatusor deepwell bushing for elbowconnectors. Different style modulespermit either all front access orfront/back access to cable connec-tions and operators depending onuser preference. Controls can bemounted directly to the recloser frameor within a separate adjacent enclosure.

Padmount Reclosers with Front / Back AccessDimensions are approximate. Do not use for construction. Galvanized steelenclosures are standard. Stainless steel is available. Drawing shows separatecompartments for the cable and operator. The control is mounted directly tothe frame. C modules are shown.

Photo shows afront/back configuration using Z modules.

“C” Module “Z” Module

Module Configurations

IEEEInterface

IEEEInterface


DESIGN RATINGS AND STANDARDSReclosers are designed, tested andbuilt per latest version of IEEEC37.60 standards. Certified testreports are provided. The reclosersare rated:

Maximum Design Voltage, kV........................15.5....27 ......38

Impulse level (BIL), kV ........................110 ..125 ...150

Continuous & load break current, A ..........800.....800 ..800

8-hour Overload, A ........................960 ...960 ..960

60Hz Withstand, kV rmsOne minute (dry) ..50 ....60 ......7010 second (wet)....45 ....50 ......60

Interrupting Current, kA rms sym., ......12.5 ..12.5..12.5

Making Current,RMS, asym, kA ....20 ....20 ......20Peak, asym, kA ....32 .....32......32

Short Circuit Current, 3 seconds kA sym., ..............12.5 ..12.5 ..12.5

Mechanical endurance,operations ..........10k ....10k....10k

Temperature range, -40°C to +65°C (-40°F to 150°F)

OPTIONS The following options are supplied:___ NEMA 2-hole aerial lugs___ NEMA 4-hole aerial lugs___ Clamp aerial lugs (#2 - 500 kcmil)___ Clamp aerial lugs (250-750 kcmil)___ 4/0 brass eyebolt ground lug(s)___ Dead-line operation permitting

using the batteries located in thecontrol (351R only) for operation of the recloser if AC input poweris lost. A remote status signal reports the operational status of the interrupter power supply permitting remote indication of the control’s capability to open orclose the recloser.

___ Internal voltage sensing permitting voltage reading for network reconfiguration applications. Provides a secondary analog 120VAC output accepted by most relays.

___ Stainless steel polemount center bracket

___ Stainless steel polemount horizontal side bracket

___ Stainless steel adjustable substation frame

___ Stainless steel substation frame for 45° recloser mounting

___ Stainless steel dead-front front access padmount design

___ Stainless steel dead-front front/back access padmount design

___ 48VDC power supply___ 125VDC power supply___ 48VDC heater___ 125VDC heater___ CRS control logic voltage

48VDC___ CRS control logic voltage

125VDC___ Cold temperature operation

to -50°C___ External CTs for current

monitoring supplied individually___ External CTs mounted on a

single fixture with flexible conduit

___ High impact, UV stable wildlife protectors for source and load insulators

G&W ELECTRIC CO.3500 W. 127th StreetBlue Island, IL USA 60406(708) 388-5010Fax: (708) 388-0755Website: www.gwelec.comISO 14001:2004 Certified

© January, 2011 Printed in USA

SHANGHAI G&W ELECTRIC LTD.No. 8 Lane 1505, Zu Chong Z hi Road,

Zhang Jiang,Pudong, Shanghai, China 201210

+86-21-5895-8648Fax: +86-21-5895-6829

Website: www.gwelec.com.cn

ISO 9001:2008 Certified Company

External mounted CTs provide currentmonitoring on both the load and line side.Individual CTs and cabling are available.

CTs can be supplied factory mountedon a single fixture with flexible conduit forthe cables.

NEMA 4-hole, 2-hole and clamp styleaerial lugs

High impact, UV stable wildlife protectors for source and load insulators

Viper_S_2010 r4_6125_Viper_S_2008 2/17/11 8:45 AM

solid dielectric, three phase reclosers

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