Diamondback

Solid Dielectric Load Break Switch CatalogDistributed By;

G & W E L E C T R I C P A G E 2

Company profileSince 1905, G&W Electric has helped energize the world with innovative power system solutions. With the introduction of the first disconnecting cable terminating device, G&W began to build a reputation for engineering custom solutions to meet the needs of system designers. Solutions which today have extended far beyond cable accessory products and into the latest in load and fault interrupting switchgear, reclosers, system protection equipment and distribution automation.

HeadquartersG&W headquarters is located in Bolingbrook, IL, USA, a suburb of Chicago. G&W also has manufacturing facilities or sales offices in China, Mexico, Canada, Dubai, India, Singapore and Brazil. G&W covers the globe with product installations and sales representation in over 100 countries and all seven continents.

G&W Manufacturing Facility

G&W Sales Office

G&W Electric Facilities:

G&W Electric Co. Headquarters (Bolingbrook, IL, USA)

G&W China (Shanghai)

G&W Canada (Mississauga, Ontario)

G&W Mexico (San Luis Potosí)

G&W do Brasil (Salvador)

G&W sales office (Dubai)

G&W sales office (Delhi, India)

G&W sales office (Singapore)

Manufacturer’s Brass and Aluminum Foundry (Blue Island, IL, USA)

G & W E L E C T R I C P A G E 2

p G&W headquarters in Bolingbrook, IL USA

G & W E L E C T R I C P A G E 3

Solid Dielectric Underground Distribution Switchgear

SF6 Underground Distribution Switchgear

System Automation and Smart Grid Solutions

Single and Three Phase Solid Dielectric Reclosers

System Protection Equipment

Transmission and Distribution Cable

Accessories

Three Phase Overhead Load Break Switches

G&W Product overvieW

over 110 Years servinG our Markets

G & W E L E C T R I C P A G E 3

G & W E L E C T R I C P A G E 4

The Diamondback switch is a solid dielectric, three-phase load break switch for overhead applications. The Diamondback switch combines the time-proven reliability of vacuum bottles with the maintenance-free benefits of a solid dielectric insulated device. Diamondback is designed for three phase automatic or manual switching operations providing circuit isolation for systems rated up to 25.8 kV, 630 A continuous current. The compact, light-weight de-sign provides ease of installation. Diamondback has been designed and tested to comply with the IEC 62271-103 standard (formerly IEC 60265-1:1998).

solid dieleCtriC modulesThe solid dielectric modules utilize a time-proven solid dielec-tric epoxy insulation to fully encapsulate each of the three vacuum interrupters. The operating temperature range of the switch is -30ºC to +50ºC (-22ºF to +122ºF). A 1000:1 ratio current transformer with +/-1% accuracy is encapsulated into each solid dielectric module. There are six (6) internal voltage sensors that allow for voltage measurement on both the source and load side of the device. These voltage sen-sors are encapsulated inside the solid dielectric modules and have an accuracy of +/-3%.

Diamondback

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This drawing and the information thereon are and remain the property of G&W and are not to be copied, reproduced or diclosed to others without the expressed written consent of G&W.

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SWITCH ELECTRICAL INFORMATION

MAXIMUM DESIGN VOLTAGE 25.8 KVIMPULSE LEVEL ( BIL ) 150 KVAC 1 MIN. WITHSTAND ( DRY ) 60 KVAC 10 SEC. WITHSTAND ( WET ) 50 KVCURRENT CONTINUOUS 630 AMP

CURRENT INTERRUPTING SYM. 12.5 KAMAKING CURRENT ASYM. 32.5 KA

SWITCH WEIGHT APPROX 219 LBS/ 99 KG CONTROL WEIGHT APPROX 108 LBS/ 49 KG

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D3396 PT2L A00Apr-14-15DATE:MBDRAWN BY:

PAE-ECS-ACAT. NO.:

25.8 KV ECO SWITCH OVERHEADLOAD BREAK SWITCH

PAE-ECS-A

ALL DRAWING CHANGES MUST BE MADE ON CAD. ANY MANUAL CHANGES WILL VOID DRAWING.

REVISIONS

DATECHANGEREV.

DRAWING REVIEW TEAM

NOTES: 1. CT HAS A 1000:1 RATIO, SINGLE RATIO. 2. TANK IS MADE OF PAINTED STAINLESS STEEL. 3. SWITCH MODULES ARE NOT INTENDED FOR DEAD ENDING LINE CONNECTIONS. SEPERATE CONDUCTORS TO THE LINE ARE REQUIRED. 4. SWITCH EQUIPPED FOR DEAD LINE OPERATION USING POWER FROM THE BATTERY IN THE CONTROL. 5. MINIMUM CREEPAGE DISTANCE IS 820 mm. 6. MOUNTING BRACKETS WILL FIT 190 mm TO 250 mm DIAMETER POLES. 7. NO LIGHTNING ARRESTER MOUNTING PROVISION PROVIDED, CUSTOMER TO MOUNT LIGHTNING ARRESTERS ON A SEPARATE CROSS-ARM.

1000:1

BOTTOM VIEW "A"

LEFT VIEW

OPEN

Unlocked

Locked

GROUND LUG(22mm ~ 38mm FOR CU CABLE)2 2

38 mm ~ 240mmFOR AL CABLE

2 2

U-BOLT

EPOXY BUSHING

38 mm ~ 240mmFOR AL CABLE

2 2

TANKYELLOW SIGN MANUAL HANDLE

GROUND LUG

GAS INLET

CLOSE OPEN

22.9KV630A

* ALL PRIMARY DIMENSIONS ARE IN MILLIMETERS.

DATE G&W NO.

CUSTOMER

ORDER NO.

FOR RECORD

FOR APPROVAL-NO MORE WORK TO BE DONE UNTIL APPROVAL IS RECEIVED

PRINT IDENTIFICATION

ITEM NO.

CT RATIO

CONTROLLER NO.

Standard Polemount (pole mounting brackets are included)

34”(870mm)

10”(242mm)

12”(310mm)

12”(310mm)

33”(838mm)

t Open/close handle

p G&W Diamondback load break switch

overview

G & W E L E C T R I C P A G E 5

features and Benefits

Features Benefits

Solid dielectric Insulation, uses no oil, SF6 or greenhouse gases

No maintenance or monitoring system necessary, common with oil of SF6 insulation.

Solid dielectric provides lowest total lifecycle cost.

Solid dielectric material is inert, environmentally friendly

Easy to automate with the control and FTU-P200 Smart Grid Ready

Integrated six voltage sensors

Less equipment & weight on pole reduces future maintenance. Less congestion on pole improves

reliability. Enables full line metering capability for Smart Grid applications.

Compact size and lightweight construction Allows for installation in tight areas and eases handling during installation

Reversible alley arm frame Frame is reversible and provides installation flexibility in switch orientation.

Maximum Voltage 25.8kV

Continuous Current 630A

Frequency 50Hz/60Hz

Short Circuit Current, 1 second rms 12.5kA

Making Current Peak 32.5kA / 5 times

Current Switching Capacity

Tested per IEC 62271-103

Load Current630A / 200 times (100%)

31.5A / 20 times (5%)

Loop Current 630A / 20 times

Cable charging Current25A / 10 times (100%)

7.5A / 10 times (30%)

Line charging Current 1.5A / 10 times

Exiting Current 22A / 10 times

No voltage 5000 times

Control input voltage 1 Ø 220VAC / 120VAC

Control voltage 24VDC

Power Frequency Withstand Voltage

Dry 60kV / 1min

Wet 50kV / 10sec

Surge Withstand Voltage 150kV (1.2 times / 50 microseconds)

eleCtriCal ratings

Benefits & ratings Diamondback

G & W E L E C T R I C P A G E 6

t 37-pin connector for control connection and 3-pin for AC power connection.

Control ConneCtionsThe 37-pin connector and con-trol cable make the connection between the Diamondback switch and the control, pro-viding operations, status, and current and voltage monitor-ing capabilities. Two cables are provided: (1) six meter for power, and (1) eight meter con-trol cable.

▲ Control enclosure dimensions

t Automated controller with FTU-P200C

HEIGHT27”

(675mm)

DEPTH11”

(275mm)

WIDTH16”

(410mm)

ordering information

automated Control witH ftuControl Measurement• Magnitude and phase angle of voltages and currents (fundamental frequency)• Sequence components of 3-phase voltages and currents• True RMS, Harmonics and THD of voltages and currents• Active, reactive and apparent power for each phase and 3-phase• Energy (4 quadrant metering)• Displacement Power Factor• Frequency• PQM, Fault, THD Counter• Phase difference between source-side and load-side voltage

ordering informationStandard:• 1000:1 CT ratio (single ratio), +/- 1% accuracy• Six (6) Internal Voltage Sensors, +/- 3% accuracy• Controller with FTU-P200C or FTU-P200 for automatic operation with 220VAC control power (with stainless steel enclosure)• Stainless Steel tank• One (1) operating mechanism, three phase operation• One (1) manual operation handle• One (1) lockout handle• One (1) Reversible Alley arm frame

• One (1) Control cable 8m/16.25ft (max length 10m)• One (1) Power cable 6m/19.7ft (max length 10m)• Six (6) Clamp type aerial lugs• One piece packaging for switch and control

Options (check all that apply):___ Manual controller (local operation only)___ Control Power: 120VAC control power___ Wildlife Protectors

Control Features• Fault Detection (Phase and Earth Fault)• SEF (Sensitive Earth Fault) Detection• Cold Load protection (pickup adjustment)• Magnetizing Inrush Restraints• Open Line Detection• Phase Synchronous Fail Detection• Over-voltage, under-voltage• Under-frequency, over-frequency

Control Communication ProtocolsSCADA port • DNP 3.0 • DNP 3.0 over TCP/IP • IEC60870-5-101 • IEC60870-5-104 (Unbalanced/Balanced- FTU-P200)Maintenance Port • Modbus-FTUGSM/GPRS • Supports PPP connection, SMSSNTP Client • Supported through TCP/IP port

Diamondback

G & W E L E C T R I C P A G E 7

switCH appliCationsSwitches play a fundamental role in improving distribution reli-ability. By applying Diamondback switches in strategic locations on the distribution system, faults can be isolated to minimize the outage area, loads can be distributed according to system conditions, critical loads can be kept on-line, individual protec-tive devices or sections off-line can be bypassed during routine maintenance, and loads can be dropped to prevent overload-ing the source. In short, switches are typically used to recon-figure a distribution system to minimize outages and increase system reliability.

manual switCHingBy installing manually operated switches, a user can economi-cally redistribute power during times of planned outages for routine line maintenance, equipment replacement, or even seasonal load adjustments. Manual switches can also be used to isolate faults in areas where immediate power restoration is not necessary, or to perform an emergency sectionalizing function to quickly restore power to the customers affected by a power outage. The Diamondback switch does not require de-energizing the system prior to switching so customer service is not disrupted.

automated switCHingBy adding a controller to the Diamondback switch, the user can perform all of the functions of a manually operated switch with-out having to dispatch a crew to the switch site. Additionally, current and voltage can be monitored via SCADA.

Fault IsolationWhen combined with a control, the Diamondback switch can be used as an automatic sectionalizing device for automatic fault isolation. Six voltage sensors and three current transform-ers are provided as a standard feature on the Diamondback switch. Most logic schemes require a fault interrupting device to be upstream from the sectionalizing switches. The protective device must be either locked out or programmed for a specific reclose interval plus a time safety factor to allow

Application Example: Diamondback paired with a Cobra Recloser1. A fault occurs between Diamondback sectionalizer and Load 22. The Cobra recloser starts reclosing sequence: trips open,

closes, trips open 3. The Diamondback sectionalizer opens after 2nd overcurrent trip4. The Cobra Recloser closes and restores power on the line be-

tween the Cobra Recloser and Diamondback Sectionalizer

Tie SwitchesFor tie applications, the Diamondback switch control senses a voltage loss on either the source or the load side to deter-mine whether or not to close in from a normally open condi-tion between two different sources. Once the voltage on one source has been lost for a pre-programmed period of time, the tie switch will close in restoring power to the de-energized line. Current transformers "tell" the controller that a fault exists when the main contacts are closed. For a normally open tie, the tie may close into a fault upon loss of voltage on one feeder. The control “knows” of the faulted condition and would not open un-less it detects a loss of voltage on the faulted feeder side, signi-fying the upstream protective device has operated.

On a normally closed tie, the switch control would use similar logic, but no fault closing would be necessary prior to isolat-ing the fault. Tie switches can also be applied to automatically bypass a feeder which has been locked out due to a failure, planned outage or a faulted line. If the switch closes into a fault, the tie switch would open once the upstream protective device has opened, de-energizing the line.

Loop SchemesLoop schemes generally consist of two or more sources tied into a distribution system to ensure backup power is available when the primary feeder is lost. The scheme utilizes section-alizing and tie switches to automatically isolate the fault and restore power to all areas unaffected by the fault quickly and reliably using the same principles and methods described pre-viously.

Automatic TransferFor critical load applications such as hospitals, processing plants, military bases, etc., automatic transfer schemes are common. For overhead systems, this scheme requires two switches, voltage sensors and current transformers and a volt-age-time controller. A loss of voltage on the primary source is sensed and initiates the controller to open the primary and close the alternate source switch to automatically restore power.

SCADA / Distribution AutomationSwitches can perform the above functions either autonomously or through a SCADA system where the switch controls incor-porate FTUs for interfacing with a master station. A variety of SCADA applications are available which employ either a mas-ter-slave or peer-to-peer communications architecture.

Lazer AutomationThe distribution automation expertise and products of G&W and the high end software knowledge of Survalent Technology, our software company, have been combined to provide a state of the art solution – Lazer Automation. Three levels of Lazer solutions are available; Lazer I for peer-to-peer product appli-cations, Lazer II for stand-alone controller based systems, and Lazer III for total system wide management and control.

▲ Application example: Diamondback paired with a Cobra-S recloser

appliCationsDiamondback

G&W offersTechnical Support and Services:

Training ServicesG&W offers a range of training solutions at both G&W facilities and on site.

Factory Acceptance TestingG&W’s Factory Acceptance Testing ensures customers’ automation solutions are certified to operate properly and meet all requirements prior to being installed in the field.

Custom Engineering

Custom Programming

Our engineers can tailor our products to meet the needs of any application.

Our automation engineers can provide tailored relay programs to meet any specified needs.

24 Hour Technical SupportTechnical support for G&W products is available 24 hours a day, 7 days a week.

For more information: gwelec.comGeneral inquiries by email: info@gwelec.comFind your local sales representative: gwelec.comTel 708.388.5010 Fax 708.388.0755 Catalog O-db15

September, 2015

Distributed By

20 Neilpark Drive, East Tamaki, Auckland, New Zealand+64 9 274 3340 / sales@transnet.co.nz / www.transnet.co.nz