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USA Cast Coil

Cast Coil Transformers

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• Make it easy to do business• Handle complex specifications• Manage the complete project• Provide short cycle deliveries• Manufacture the most reliable transformer• Provide support during the entire life of your transformer

At WEG, we are experts in building power transformers and electric machines and have been doing it for over 50 years. We manufacture a reliable transformer that is custom built to your specification.

Find out how easy it is to work with WEG.Call 1-855-WEG-WILL or send an email to WEGWILL@weg.net

Transformers n Autotransformers n Arc Furnace n Rectifiers n Unit Substation n Cast Coil n Field Service n Logistics n Project Management

Simple...

WEG WILL

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Cast Coil Transformers

Over the last half century, WEG has positioned itself as an industry leading supplier of electric motors, automation products, power transformers, and substation equipment. Now, WEG is doing it again by releasing their latest product in the transformers line: WEG cast coil transformers. Why choose WEG? Because WEG WILL!

Demand for electricity has increased dramatically over the years. WEG cast coil transformers are designed to work under harsh operating conditions while reducing installation and maintenance costs. The cast resin design allows for higher short circuit strength and overload capacity. WEG cast coil transformers are designed for commercial and industrial applications such as oil & gas plants, pulp & paper mills, industrial operations, wind farms, hospitals, airports, and business centers. Ratings are available through 3,000 kVA and 34.5 kV with thermal insulation ratings through class C (220° C).

FeaturesWEG cast coil transformers are safe, environmentally friendly transformers. Key features include:

• Flawless operation under harsh environmental conditions

• Fire safe (no insulating mineral oil)

• Reduced installation costs – no fire protection or oil containment required

• No risk of contaminant leakage or toxic gas emissions

• High resistance to short circuits and high capacity to support overload

• Lower partial discharges and higher safety rating

Transformer Construction

The low voltage coils are made with copper or aluminum foil with a thermal insulation system designed per operating conditions F, H, or C. The coils are pre-impregnated with epoxy resin, an excellent adhesive, which provides an optimum coil insulation and high mechanical strength. Winding leads are mechanically anchored, making them practical, compact and easily accessed for field maintenance.

Low Voltage Coils

High Voltage Coils

High voltage coils display excellent resistance to load variations, changes in temperature, corrosive substances and fire. Windings are made of laminated foils and have a low partial discharge level and provide excellent resistance to axial forces caused by short circuits. High voltage regulation is performed by switching external jumpers easily accessible on the back of the coils. Insulated copper or aluminum bars are used to connect coils.

Core

The transformer core is manufactured with grain-oriented magnetic steel, with high magnetic permeability, low losses, and insulated on both sides by a thin layer of organic material (carlyte). The cutting and assembly is performed at 45° angles using the step lap method to reduce losses, excitation current, and magnetic noise.

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Cast Coil Transformers

Cast coil transformers are certified with C2, E2, or F1 ratings. Ratings depend on the transformer installation conditions.

• C2 transformers are suitable for operating temperatures as low as -25° C

• E2 transformers are suitable for operation in high levels of humidity (up to 95%)

• F1 transformers are suitable for operation in highly flammable areas. In the event of a failure, F1 transformers extinguish coil fires after the feed circuit has been opened.

WEG manufactures cast coil transformers with the following power ratings and insulation classes:

• 500, 750, 1000, 1500, 2000, 2500, 3000 kVA in voltage classes 5, 15, 25 & 34.5 kV 60Hz.

• For transformers greater than 3000 kVA and < 10MVA, please contact your sales

representative for additional information.

• Standard connections: Delta-Wye, Wye-Wye, Delta-Delta.

• Additional connection arrangements available upon request.

Thermal table types used in insulationepoxy coil casts transfromers

Thermal Types Insulation Temperature (°C)

F 155

H 180

C 220

WEG cast coil transformers meet all applicable international standards such as:

• IEEE-C57.12.01• ANSI-C89.2• IEC-60076-11• IEC-726-11• UL 1562

WEG cast coil transformers are suitable for installation in a wide variety of applications; including:

• Wind farms applications• Buildings and skyscrapers• Public convention halls• Shopping centers• Stadiums• Hospitals and health care centers• Subways• Food and Beverage industries• Petrochemical applications• Data centers• Sewage plants and pump stations• Ships• Housing complexes

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TestingTesting standards:

• IEEE/ANSI

• NEMA

• IEC

Additional manufacturing and testing standards are available.Contact WEG for details.

Routine tests:

• Winding resistance

• Ratio, polarity, angular displacement and phase sequence

• No load losses and excitation current

• Load losses and impedance

• Dielectric tests (applied and induced voltage, insulation resistance)

• Partial discharge

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Table of Dimensions & Weights of WEG Cast Coil Transformers

Insulation class “F” Aluminum-Aluminum coils

WEG Cast Coil TransformersPower Impedance Noise Length (mm) Width (mm) Height (mm) Dist. (mm) Total Weight (kg)

kVA Z(%) [dB] NEMA 1 NEMA 1 NEMA 1 WHEELS NEMA 1

500 6.0 62 1980 1250 1900 520 1900

750 6.0 64 2000 1350 2000 640 2900

1000 6.0 65 2200 1350 2000 640 3750

1500 6.0 66 2200 1350 2200 820 4000

2000 7.0 68 2500 1350 2500 820 4650

1. All dimensions ± 3% tolerance

2. 0ptional additional wheels increase transformer height by 150mm

Guarantees for Transformer Class 15kVPower Voltage

TapsGuaranteed for 15kV Transformers

kVA H.V. L.V.No Load

LossLoad Loss

Z% io(%)

500 13800 V220 ± 2 @ 2.5% 1600 7400 6.0 1.22

440 ± 2 @ 2.5% 1600 7400 6.0 1.22

750 13800 V220 ± 2 @ 2.5% 2400 11100 6.0 1.22

440 ± 2 @ 2.5% 2400 11100 6.0 1.22

1000 13800 V220 ± 2 @ 2.5% 2750 12000 6.0 1.05

440 ± 2 @ 2.5% 2750 12000 6.0 1.05

1500 13800 V220 ± 2 @ 2.5% 3600 18600 6.0 0.92

440 ± 2 @ 2.5% 3600 1860 6.0 0.92

2000 13800 V220 ± 2 @ 2.5% 4300 20500 7.0 0.82

440 ± 2 @ 2.5% 4300 20500 7.0 0.82

Cast Coil Transformers, class 15 kV - 60 Hz, insulation class “F”

Contact WEG for other insulations classes.

1. Maximum ambient temperature of 40°C (daily average of 30°C)

2. Mid-temperature rise/hot spot of the windings on the environment 90°C 110°C

3. Routine tests performed according to IEEE/ANSI standards

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WEG Cast Coil TransformersPower Impedance Noise Length (mm) Width (mm) Height (mm) Dist. (mm) Total Weight (kg)

kVA Z(%) [dB] NEMA 1 NEMA 1 NEMA 1 WHEELS NEMA 1

500 6.0 62 1980 1250 1900 520 1900

750 6.0 64 2000 1350 2000 640 2900

1000 6.0 65 2200 1350 2000 640 3750

1500 6.0 66 2200 1350 2200 820 4000

2000 7.0 68 2500 1350 2500 820 4650

WEG Electric Corp.6655 Sugarloaf ParkwayDuluth, GA 30097Phone: 1-800-ASK-4WEG web: www.weg.net

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Please contact your authorized distributor:

WEG Electric Corp. offers the following products, and more! With a full range of IEC/NEMA Global Certifications and a full line of products, WEG can supply the right solution for your needs anywhere in the world. To learn more about WEG’s products and solutions or to locate a Distributor near you, please call 1-800-ASK-4WEG or visit www.weg.net/us.

Low Voltage Motors,

Single and 3-Phase, 1/8 – 700HP

General Purpose Motors

Explosion Proof Motors

Crusher Duty Motors

IEC Tru-Metric Motors

Pump Motors including JP/JM

P-Base Pump Motors

Oil Well Pumping Motors

Pool & Spa Motors

Brake Motors

Compressor Duty Motors

Farm Duty Motors

Poultry Fan Motors

Auger Drive Motors

IEEE 841 Motors

Stainless Steel Wash Down Motors

Saw Arbor Motors

Cooling Tower Motors

Commercial HVAC Motors

Pad Mounted Motors

Vector Duty Motors

Large Electric Motors

Low Voltage 3-phase motors up to 2,500HP

Motors up to 70,000HP and 13,200V

Wound Rotor Systems (including starters) up to 70,000HP and 13,200V

Synchronous Motors up to 70,000HP and 13,200V

Explosion proof motors (Ex-d) up to 1,500kW and 11kV

Ex-n, Ex-e, Ex-p motors

Variable Frequency Drives

Low Voltage 1/4 to 2500HP, 230V – 480V

Medium Voltage 500-8000HP

Multi-pump systems

NEMA 4X

Dynamic braking resistors

Line and load reactors

Plug and play technology

Network communications: Profibus-DP, DeviceNet, Modbus-RTU

PLC functions integrated

Complete line of options and accessories

Soft Starters

3-1500HP

Oriented start-up

Built-in bypass contactor

Universal source voltage (230-575V, 50/60Hz)

Network communications: Profibus-DP, DeviceNet, Modbus-RTU

Complete Line of options and accessories

MV Soft-starter 3.3kV, 4.16kV: up to

3500HP, Withdrawable Power Stacks, & 8x PT100 Temperature monitoring

Controls

Mini – Contactors

IEC Contactors

Thermal Overload Relays

Manual Motor Protectors

Molded Case Circuit Breakers

Smart Relays

Enclosed Starters: combination & non-combination,

Pushbuttons & Pilot Lights

Timing & Motor Protection Relays

Terminal Blocks

Custom Panels

Custom configured to your specification.

NEMA 1, 12, 3R, 4 and 4X cabinets

Quick delivery of preconfigured drives

and soft starters

UL 508 certified

Low Voltage (230-460)

Made in the U.S.A.

Generators

Brushless Synchronous Generators for diesel gen-sets up to 4,200kVA

Hydro-generators up to 25,000kVA

Turbo-generators up to 62,500kVA

Power Transformers

Built and engineered in North America

Voltages < 345kV

Ratings 5-250MVA

Station class, oil filled, round core, copper windings

Special configurations and designs available!

Ask your WEG Sales Representative for details.

Designed, built, and engineered to ANSI standards.

Custom Solution Package Sales

WEG can package any of its products for ease of sale! Enjoy a single point of contact for the entire package of products and assistance from quote through after-sales support. Ask your WEG Sales Representative for details.