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THREE PHASE PADMOUNT TRANSFORMERS
THREE PHASE PADMOUNT TRANSFORMERS
Maddox padmount transformers are available in a wide range of sizes from 45 kVA to 5000 kVA, supporting both 60 Hz and 50 Hz frequencies. They are designed with ONAN or KNAN cooling classes and temperature rises of 55°C, 65°C, or 55/65°C. Voltage options range from 600V to 35kV, with configurations available in both delta (Δ) and wye (Y).
Design and Construction:
The transformers feature high voltage bushing configurations that can be either dead front or live front, with loop feed or radial feed options. Fluid options include Type II Mineral Oil and Envirotemp™ FR3™. Standard accessories include pressure relief valves, pressure vacuum gauges, liquid temperature and level gauges, and drain and sample valves. Switch options include 2 or 4 position LBOR switches, and fusing options include bayonets with isolation links or CLFs. Construction features a 5-legged core, rectangular wound copper or aluminum windings, and a carbon reinforced or stainless steel tank.
Optional Features:
Optional design features include gauges with contacts, external drain and sample valves, electrostatic shielding, K-factor design, step-up design, and surge arresters.
Applications:
Maddox padmount transformers are suitable for commercial and industrial applications such as data centers, solar step-up, utility projects, manufacturing facilities, and shopping centers. They are built to meet industry standards including NEMA, ANSI, DOE, and IEEE.
Dimensions and Weight:
The document provides detailed dimensions and weights for transformers ranging from 300 kVA to 3750 kVA, with specific measurements for each size.
Catalog excerpts
THREE PHASE PADMOUNT TRANSFORMERS Maddox padmount transformers are constructed of the highest quality materials and built in the US to heavy duty industrial standards. Our padmounts are built and tested in accordance with industry standards (NEMA, ANSI, DOE, and IEEE as applicable). Maddox padmounts are ideal for commercial and industrial applications such as data centers, solar step-up, utility projects, manufacturing facilities, shopping centers, etc. Maddox has the manufacturing ability to produce almost any custom design, we also stock all standard configurations. With thousands of new and reconditioned units in stock and ready-to-ship, Maddox is ready to meet your transformer needs. DESIGN HV Bushing Config: 1. Dead front or live front 2. Loop feed or radial feed Fluid Options: 1. Type II Mineral Oil 2. Envirotemp™ FR3™ Standard Gauge/Accessory Package: 1. Pressure relief valve 2. Pressure vacuum gauge 3. Liquid temp & level gauges 4. Drain & sample valve 5. Adjustment taps AVAILABLE RATINGS Sizes (kVA) Cooling Class Temp Rise Switch Options: 1. 2 Position LBOR Switch 2. 4 Position LBOR Switch (V-blade or T-blade) 3. (3) 2 Position LBOR Switches Fusing Options: Bayonets w/ isolation links or CLFs Construction: 1. 5-legged core 2. Rectangular wound copper or aluminum windings 3. Carbon reinforced or stainless steel tank 4. Steel divider between HV and LV cabinets 5. Penta-head captive bolt Optional Design Features & Accessories: 1. Gauges w/ Contacts 2. External drain and sample valve 3. Electrostatic Shielding 4. K-Factor Design 5. Step-up Design 6. Surge-Ar
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PADMOUNT TRANSFORMER OUTLINE APPROXIMATE TRANSFORMER DIMENSIONS kVA THREE PHASE MADDOX PADMOUNT TRANSFORMER
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