5KV TO 38KV METALCLAD SWITCHGEAR

Application Guide

5kV to 15kV Metalclad Switchgear SPECIFICATIONS

• Applicable Standard • NEMA/IEEE/NEC • ANSI: C37.04, C37.06, C37.09, C37.20.2 • UL Available• Ambient Temperature 40deg.C/104degF• Elevation less than 3300feet above sea level (higher elevations at de-rating factor will be applied per ANSI)• NEMA 1, 4, 12, 4 and 4X• Seismic Design• AWS Weld Certified

SYSTEM• Voltage (2.4KV to 15KV)• Currents (1200Amps to 3000Amps)• Forced cooling; 3500Amp/4000Amp Consult TAW-CE• Short Circuits (25KA, 31.5KA, 40KA and 50KA) (63KA consult TAW)• BIL 60KVBIL @ 5KV and 95KVBIL @ 15KV (Optional 110KVBIL)

VACUUM CIRCUIT BREAKER• 5KV or 15KV, Vacuum Drawout Circuit Breaker, 3-pole electrically operated• 1200/2000/3000Amps• 25/31.5/40/50KA• 60KVBIL or 95KVBIL• Breakers: Eaton, Siemens, ABB, SQD, TOSHIBA, etc.• Same rated breakers interchangeable

METALCLAD SWITCHGEAR CONSTRUCTION• One and two high construction• Each vertical cubicle is constructed of 11 gauge sheet steel and within vertical cubicles, each compartment (drawout vacuum breaker, main bus, draw out potential transformers and rear connection cable area) is further segregated by 11 gauge steel partitions• Structure is self-supporting and free standing, welded and bolted• The Switchgear is Utility Grade• Suitable for Indoor Installation or in an outdoor enclosure• Control circuits are segregated from high voltage areas• Control cables can enter via top or bottom• Power connections via bottom, top, bus duct, etc.• Hinged front door and handle/Rear hinged doors or bolted panels• Control wiring SIS as required• Continuous ¼”x 2” silver plated copper ground bus• Copper (1200Amp/2000Amp/3000Amp)Main Bus, silver plated and insulated• Bus joints silver plated with PVC boots• Bus support system (KA Rating)• Bus Insulation system fluidized bed Through wall Insulators/Bus Supports; Porcelain and Epoxy (per specifications)• Vents• Automatic shutters

INSTRUMENT TRANSFORMERS• Current Transformers • Installed over the cell bushings accessible from the front • 5 Ampere Secondary wired to shorting type terminal blocks • Metering and Relaying Accuracy classification as specified

• Voltage Transformers • VT’s and associated primary fused installed in a drawout assembly • When moved to the withdrawn position, the drawout unit will automatically ground the PT primary windings and there will be a visible indication of positive ground • VT’s will have a 120Volt Secondary • VT accuracy ratings as specified

• Control Power Transformers • If required, fixed mounted and primary fused mounted in a drawout assembly • Fuse drawout unit will automatically ground secondary • CPT secondary will have a molded case breaker interlocked with the drawout assembly • CPT secondary 120/240V

• Control Wiring • SIS Type, minimum 14AWG • CT secondary wiring 12AWG • Exposed wiring protected from contact with sharp edges • Neatly bundled and secured throughout the switchgear • Where wires pass through cubicle to cubicle will have a grommet for protection • No wire splicing is allowed • Each control wire will be marked at both ends • Ring type lugs • Control wiring leaving the switchgear will be terminated in terminal blocks

• Meters, Switches, Protective Relays • As required per the project one line diagram

• Finish • All steel structure members will be cleaned, rinsed and phosphatized prior to painting • Coating process will be an electrostatically applied polyester powder coat with a final baked on finish. • Standard color is ANSI 61 light grey

• Inspection and Testing • Vacuum breaker tested by the manufacturer (test certificates available) • Full Quality Control Testing at TAW-CE factory prior to shipping • Full list of tests available upon request • Customer witness testing available/test reports

• Documentation/Drawings • 3-D and Auto Cad Drawings • Installation/Operation/Maintenance Manuals • ISO Certification • Test Certifications

ACCESSORIES/SPARES/OPTIONS • Standard accessories and spares included • GandT Device (optional) • Stainless Steel Construction (0ptional) • Arc Mitigation (Options) Isolation of switchgear for personnel protection Close door breaker racking Remote breaker racking Remote P/T and CPT racking drawers Remote mounting/isolation of relays and controls Install Arc Mitigation Relays/current and light sensing Use 3-cycle vacuum

27KV to 38KV Metalclad Switchgear SPECIFICATIONS

• Applicable Standard • NEMA/IEEE/NEC • ANSI: C37.04, C37.06, C37.09, C37.20.2 • UL Available• Ambient Temperature 40deg.C/104degF• Elevation less than 3300feet above sea level (higher elevations at de-rating factor will be applied per ANSI)• Seismic Ratings• NEMA 1, 12, 4 and 4X

System• Voltage (26KV to 38KV)• Current (1200Amps to 3000Amps)• Forced cooling; 3500Amp/4000Amp Consult TAW-CE• Short Circuits (40KA) Maximum• 125KVBIL @ 27KV/150KVBIL and 170KVBIL @ 38KV (consult TAW-CE if higher BIL is required)

Vacuum Circuit Breaker• 27KV or 38KV, Vacuum Drawout Circuit Breaker, 3-pole electrically operated• 1200/2000/3000Amps• 25/31.5/40KA• 150KVBIL (Optional 170KVBIL)• Breakers: Eaton, Siemens, Hyundai• Same rated breakers interchangeable

Metalclad Switchgear Construction• One high construction• Each vertical cubicle is constructed of 11 gauge sheet steel and within vertical cubicles, each compartment (drawout vacuum breaker, main bus, draw out potential transformers and rear connection cable area) is further segregated by 11 gauge steel partitions• Structure is self-supporting and free standing, welded and bolted• The Switchgear is Utility Grade• Suitable for Indoor Installation or in an outdoor enclosure• Control circuits are segregated from high voltage areas• Control cables can enter via top or bottom• Power connections via bottom, top, bus duct, etc.• Hinged front door and handle/Rear hinged doors or bolted panels• Control wiring SIS as required• Continuous ¼”x 2” silver plated copper ground bus• Copper (1200Amp/2000Amp/3000Amp)Main Bus, silver plated and insulated• Bus joints silver plated with PVC boots• Bus support system (KA Rating)• Bus Insulation system fluidized bed Through Wall/Bus Supports; Porcelain/Epoxy (Per specification)• Vents

Instrument Transformers• Current Transformers • Installed over the cell bushings accessible from the front • 5 Ampere Secondary wired to shorting type terminal blocks • Metering and Relaying Accuracy classification as specified

• Voltage Transformers • VT’s and associated primary fused installed in a drawout assembly • When moved to the withdrawn position, the drawout unit will automatically ground the PT primary windings and there will be a visible indication of positive ground • VT’s will have a 120Volt Secondary • VT accuracy ratings as specified

• Control Power Transformers • If required, fixed mounted and primary fused mounted in a drawout assembly • Fuse drawout unit will automatically ground secondary • CPT secondary will have a molded case breaker interlocked with the drawout assembly • CPT secondary 120/240V

• Control Wiring • SIS Type, minimum 14AWG • CT secondary wiring 12AWG • Exposed wiring protected from contact with sharp edges • Neatly bundled and secured throughout the switchgear • Where wires pass through cubicle to cubicle will have a grommet for protection • No wire splicing is allowed • Each control wire will be marked at both ends • Ring type lugs • Control wiring leaving the switchgear will be terminated in terminal blocks

• Meters, Switches, Protective Relays • As required per the project one line diagram

• Finish • All steel structure members will be cleaned, rinsed and phosphatized prior to painting • Coating process will be an electrostatically applied polyester powder coat with a final baked on finish. • Standard color is ANSI 61 light grey

• Inspection and Testing • Vacuum breaker tested by the manufacturer (test certificates available) • Full Quality Control Testing at TAW-CE factory prior to shipping • Full list of tests available upon request • Customer witness testing available/test reports

• Documentation/Drawings • Auto Cad Drawings • Installation/Operation/Maintenance Manuals • ISO Certification

Accessories/Spares/Options • Standard accessories and spares included • GandT Device (optional) • Arc Mitigation Options • Close door racking (optional) • Remote Racking Device (optional) • Remote mounting/isolation relays and controls • Arc Mitigation Relays, current/light sensing

TAW Switchgear Ratings

Cont. Current Max. KV Operating KV Short Circuit BIL

1200Amps 2000Amps3000Amps

4.76KV 2.4KV to 4.76KV 25 to 50KA 60KV

1200Amps 2000Amps3000Amps

15KV to 13.8KV 25 to 50KA* 95KV

3500Amp/4000Amp Forced Cooled Consult TAWFor Generator Applications in accordance with C37.013 Consult TAWFor 27KV and 38KV Refer to the applicable switchgear spec. guideOutdoor application TAW provides; NEMA 3R, ODNWI, Sheltered Aisle, PDC* Special Application 63KA

TAW-CE Switchgear Ratings

Cont. Current Max. KV Operating KV Short Circuit BIL

1200Amps 2000Amps3000Amps

27KV to 38KV 27KV to 38KV 25 to 40KA 150KV*170KV

3500Amp/4000Amp Forced Cooled Consult TAWFor Generator Applications in accordance with C37.013 Consult TAWOutdoor application TAW provides; NEMA 3R, ODNWI, Sheltered Aisle and PDC* 170 KVBIL upon request

FOR MORE INFORMATION CALL: 866-387-0077 | FAX 813-840-3235TAW CUSTOM EQUIPMENT | 6312 78th Street, Riverview, FL 33578 | tawinc.com

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