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Motors | Automation | Energy | Transmission & Distribution | Coatings
USA Cast Coil
Cast Coil Transformers
1-800-ASK-4WEG2
www.weg.net
• 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
Cast Coil Transformers 3
www.weg.net
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.
1-800-ASK-4WEG4
www.weg.net
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
Cast Coil Transformers 5
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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
1-800-ASK-4WEG6
www.weg.net
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
Cast Coil Transformers 7
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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.
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