Padmount Transformers

PADMOUNT TRANSFORMERS

Product Scope

1-Phase up to 250 kVA
3-Phase up to 7500 kVA
Voltages through 35 kV

Short for "Tamper-proof, compartmentalized, liquid-filled, pad mounted transformer", all padmount designs feature fully enclosed tamper-proof terminal compartments and can be supplied with dead-front or live-front configuration, for loop or radial feed applications, with Type II mineral oil, or environmentally friendly and high flash-point Envirotemp™ FR3™.

All new Maddox padmount transformers are constructed of the highest quality materials and built in the US to heavy duty industrial standards, making them ideal for commercial and industrial applications such as data centers, solar step-up, manufacturing facilities, shopping centers, etc.

With thousands of new units in stock and ready-to-ship, and the manufacturing ability to produce almost any custom design, Maddox stands ready to meet your transformer need(s). Maddox stocks all standard configurations to match most common applications and deliver on short notice

GET A PADMOUNT QUOTE!

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TECHNICAL SPECIFICATIONS

STANDARD FEATURES

65 Degree C Rise
60 Hz Frequency
ONAN Cooling Class
Reinforced Carbon Steel Tank
High-Grade Silicone-Steel Core
Externally Clamped High and Low Voltage Bushings
NEMA Two-Hole Ground Pad
Stainless Steel Diagrammatic Nameplate
Base Suitable for Rolling or Skidding
Welded Cover with Handhole
No-Load Tap Changer
Type II Non-PCB Mineral Oil
Impedance 5.75 % (±7.5%)

OPTIONAL FEATURES

Electro-static Shielding
Bio-degradable Envirotemp™/FR3
55/65 Degree C Temperature Rise
Pressure Relief Device
Bayonet and Current Limiting Fuses
Loadbreak Switch (2, and 4 position)
Lightning/Elbow Arresters
Metering Package
Gauges with Contacts
External Oil Sample Port
Viewing Window
Stainless Steel Construction
And many more! Contact us for more info.

DOWNLOAD BROCHURE / CATALOG

Included Gauges & Accessories*

Pressure Relief Valve
Pressure Vacuum Gauge
Liquid Temp Gauge
Liquid Level Gauge
Drain and Sample Valve

Bushing Options

Dead Front Bushings thu 35 kV
Live Front Bushings thru 35 kV
Radial or Loop Feed Configuration
Elbow Connector Kit
HV Arresters

*300 kVA and up

Padmount transformer with cabinet off

MADDOX TESTING PROCEDURES

Insulation winding resistance
Turn to Turn Ratio (all taps)
Winding Resistance (all taps)
No Load Losses
Full Load Losses

Excitation current
Impedance %
Control & Devices Test (when present)
48-Hour Tank Leak Test
Witness Test Available on Request

View Sample Test Report

OUR LOCATIONS

GREENVILLE, SC

303 Greer Drive
Simpsonville SC, 29681
(864) 501-7324

BATTLE GROUND, WA

1608 SE Commerce Ave
Battle Ground WA, 98604
(360) 512-3355

Call us today at 800-270-2011 or email sales@maddoxtransformer.com

Specializing in padmount transformers for commercial and industrial users.