Liquid Filled Padmount Compartmental
Built Tough. Designed for Flexibility.
MGM Transformers’ padmount compartmental transformers combine strength, security, and customization to power your projects with confidence. Designed for ground-level applications, these transformers are available in both single- and three-phase configurations and are built for long-term performance.
Key Features:
- Reliable Construction: Featuring sealed tanks, welded covers, and nitrogen blankets for durability in any environment.
- Flexible Power Range: Supporting applications up to 10,000 kVA and 34,500 V (with optional configurations up to 46,000 V).
- Safety-First Design: Equipped with tamper-proof cabinets and pad-lockable doors to protect against unauthorized access.
- Customizable Options: Tailored with a variety of accessory options to fit your exact needs.
Overview
- Equipped with an external 5 Position No Load Tap Changer.
- Features an anodized aluminum diagrammatic name plate.
- Comes standard with a pressure relief valve, a 1” fill plug with a Schrader valve, and a 1” drain valve with an oil sampler.
Standard Specifications
- 60 Hertz operation.
- 65° Temperature Rise.
- Utilizes Mineral Oil or Envirotemp™ Fluid.
Construction & Enclosure
- Built with Aluminum or Copper Windings.
- Includes Low Voltage NEMA 4 Hole Spade Bushings, along with Bushing Wells and Inserts.
- Painted in Munsell 7.0GY3.29/1.5 Green.
- Standardly equipped with oil level, oil temperature, and pressure vacuum gauges.
Testing, Options & Accessories
- Variations available include a 50 Hertz adder or 55° and 55°/65° Temperature Rises.
- Optional high voltage connections include Live Front NEMA Spade High Voltage Bushings.
- Cooling upgrades include Forced Air Cooling Fans and Removable Radiators.
- Protection accessories include Current Limiting Fuses, BAY-O-NET fuses, and Dead Front Elbow Type Arresters.
- Available control boxes include NEMA 3R, NEMA 4, and NEMA 4X (Stainless Steel), as well as a 120 VAC space heater with a thermostat.
Industry Use Cases
- Hospitals
- University Campuses
- Retail Shopping Centers
- Residential Subdivisions
- Battery Energy Storage Systems (BESS)
- EV Charging Stations
- Municipal and Utility Distribution Networks
A liquid filled padmount transformer is an outdoor transformer utilized as part of an underground distribution system, with enclosed compartment(s) for high-voltage and low-voltage cables entering from below, and mounted on a foundation pad where the general public may have direct contact with the exterior surfaces of the equipment. It safely steps up or down voltage depending on the application.
Padmount transformers are commonly used in Hospitals, University Campuses, Retail Shopping Centers, Residential Subdivisions, Battery Energy Storage Systems (BESS), EV Charging Stations, Municipal and Utility Distribution Networks.
Our padmount transformers offer high durability, reliability, and customizable configurations for various applications.
Our padmount transformers support capacities up to 10 MVA and voltage ratings up to 46 kV.
Yes, these transformers can be customized with dead-front or live-front configurations, custom tank sizes and compartments, different insulating fluids such as mineral oil or natural esters, and additional protection and monitoring features.
They are typically manufactured in compliance with industry standards such as IEEE C57.12 series for distribution transformers, which define safety, performance, and design requirements.
Yes, we offer tailored solutions based on project specifications, load requirements, and environmental conditions. Submit a quote today.
With proper installation and maintenance, padmount transformers typically last over 20 years, depending on operating conditions and load demands.
They are installed on a concrete pad at ground level and connected to underground cables through bottom entry compartments, allowing for clean and secure installations.
Yes, as long as the application information is provided for a proper design. They can be designed to be well-suited for renewable energy and battery storage applications, supporting efficient integration and distribution of power within modern energy networks.
Lead times depend on configuration. Stocked standard units can ship considerably faster than full custom builds. For time-critical projects, our Bull Rush emergency program expedites production and can deliver units in as little as 5 working days in qualifying situations. Because our transformers are manufactured in North America, they are not subject to the international freight delays and customs lead times that affect imported equipment, which is a meaningful advantage when project schedules are tight or when a replacement unit is needed urgently due to a field failure.
Contact us directly with your catalog number or specifications to confirm current stock availability and lead time for your location.
Contact Us
Bull Rush
Emergencies happen and we’re here to respond. We will work 24/7 till the emergency transformer is done or your money back!