Download Cast Coil Transformers

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Cast Coil Transformers
USA Cast Coil
www.weg.net
Simple...
WEG WILL
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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 [email protected]
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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).
Features
WEG 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
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.
Low Voltage Coils
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.
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.
Cast Coil Transformers
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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.
WEG cast coil transformers meet all applicable
international standards such as:
• IEEE-C57.12.01
• C2 transformers are suitable for operating
temperatures as low as -25° C
• ANSI-C89.2
• IEC-60076-11
• E2 transformers are suitable for operation in high
levels of humidity (up to 95%)
• IEC-726-11
• UL 1562
• 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 cast coil transformers are suitable for installation
in a wide variety of applications; including:
• Wind farms applications
• Buildings and skyscrapers
Thermal table types used in insulation
epoxy coil casts transfromers
Thermal Types Insulation
Temperature (°C)
F
155
H
180
C
220
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.
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• 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
www.weg.net
Testing
Testing 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
Cast Coil Transformers
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Table of Dimensions & Weights of WEG Cast Coil Transformers
Insulation class “F” Aluminum-Aluminum coils
WEG Cast Coil Transformers
Power
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
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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Guarantees for Transformer Class 15kV
Power
Guaranteed for 15kV Transformers
Voltage
kVA
H.V.
500
13800 V
750
13800 V
1000
13800 V
1500
13800 V
2000
13800 V
Taps
No Load
Loss
Load
Loss
Z%
io(%)
220
± 2 @ 2.5%
1600
7400
6.0
1.22
440
± 2 @ 2.5%
1600
7400
6.0
1.22
220
± 2 @ 2.5%
2400
11100
6.0
1.22
440
± 2 @ 2.5%
2400
11100
6.0
1.22
220
± 2 @ 2.5%
2750
12000
6.0
1.05
440
± 2 @ 2.5%
2750
12000
6.0
1.05
220
± 2 @ 2.5%
3600
18600
6.0
0.92
440
± 2 @ 2.5%
3600
1860
6.0
0.92
220
± 2 @ 2.5%
4300
20500
7.0
0.82
440
± 2 @ 2.5%
4300
20500
7.0
0.82
L.V.
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Cast Coil Transformers
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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,
Variable Frequency Drives
Custom Panels
Single and 3-Phase, 1/8 – 700HP
Low Voltage 1/4 to 2500HP, 230V – 480V
Custom configured to your specification.
General Purpose Motors
Medium Voltage 500-8000HP
NEMA 1, 12, 3R, 4 and 4X cabinets
Explosion Proof Motors
Multi-pump systems
Quick delivery of preconfigured drives
Crusher Duty Motors
NEMA 4X
and soft starters
IEC Tru-Metric Motors
Dynamic braking resistors
UL 508 certified
Pump Motors including JP/JM
Line and load reactors
Low Voltage (230-460)
P-Base Pump Motors
Plug and play technology
Made in the U.S.A.
Oil Well Pumping Motors
Pool & Spa Motors
Network communications: Profibus-DP,
DeviceNet, Modbus-RTU
Brake Motors
PLC functions integrated
Compressor Duty Motors
Complete line of options and accessories
Generators
Brushless Synchronous Generators for
diesel gen-sets up to 4,200kVA
Farm Duty Motors
Hydro-generators up to 25,000kVA
Poultry Fan Motors
Soft Starters
Auger Drive Motors
3-1500HP
IEEE 841 Motors
Oriented start-up
Power Transformers
Stainless Steel Wash Down Motors
Built-in bypass contactor
Built and engineered in North America
Saw Arbor Motors
Universal source voltage (230-575V,
50/60Hz)
Voltages < 345kV
Pad Mounted Motors
Network communications: Profibus-DP,
DeviceNet, Modbus-RTU
Station class, oil filled, round core, copper
windings
Vector Duty Motors
Complete Line of options and accessories
MV Soft-starter 3.3kV, 4.16kV: up to
Special configurations and designs
available!
3500HP, Withdrawable Power Stacks, & 8x
PT100 Temperature monitoring
Ask your WEG Sales Representative for
details.
Cooling Tower Motors
Commercial HVAC Motors
Large Electric Motors
Low Voltage 3-phase motors up to
2,500HP
Turbo-generators up to 62,500kVA
Ratings 5-250MVA
Designed, built, and engineered to ANSI
standards.
Motors up to 70,000HP and 13,200V
Controls
Wound Rotor Systems (including starters)
up to 70,000HP and 13,200V
Mini – Contactors
IEC Contactors
Custom Solution Package Sales
Synchronous Motors up to 70,000HP and
13,200V
Thermal Overload Relays
Explosion proof motors (Ex-d) up to
1,500kW and 11kV
Molded Case Circuit Breakers
Ex-n, Ex-e, Ex-p motors
Enclosed Starters: combination & noncombination,
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.
Manual Motor Protectors
Smart Relays
USA CAST COIL (2013)
Pushbuttons & Pilot Lights
Timing & Motor Protection Relays
Terminal Blocks
Please contact your authorized distributor:
WEG Electric Corp.
6655 Sugarloaf Parkway
Duluth, GA 30097
Phone: 1-800-ASK-4WEG
web: www.weg.net