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.
STANDARD FEATURES
- Bushing Wells and Inserts
- Low Voltage NEMA 4 Hole Spade Bushings
- Aluminum or Copper Windings
- Mineral Oil or Envirotemp™ Fluid
- 60 Hertz
- 65° Temperature Rise
- Pressure Relief Valve
- 1” Fill Plug with Schrader Valve
- Oil Level Gauge
- Oil Temperature Gauge
- Pressure Vacuum Gauge
- 1” Drain Valve with Oil Sampler
- External 5 Position No Load Tap Changer
- Anodized Aluminum Diagrammatic Name Plate
- Munsell 7.0GY3.29/1.5 Green Paint
OPTIONAL FEATURES
- Live Front NEMA Spade High Voltage Bushings
- Non-Standard/Elevated BIL Adder
- Non-Standard Paint Color
- Forced Air Cooling Fans
- Removable Radiators
- 55° and 55°/65° Temperature Rise
- 50 Hertz Adder
- Watthour Meter Assembly
- Dead Front Elbow Type Arresters
- Live Front Distribution Class Arresters
- Station/Intermediate Class Arresters
- BAY-O-NET Fuses
- Current Limiting Fuses
- Dry Well Canister Fuses
- 1 Contact or Dual Contact Oil Level Gauge
- 1 Contact or Dual Contact Oil Temperature Gauge
- NEMA 3R Control Box
- NEMA 4 Control Box (Small)
- NEMA 4X Control Box (Stainless Steel)
- 120 VAC Control Cabinet Light
- 120 VAC Space Heater with Thermostat
- Drain/Breather
- Pressure and Vacuum Gauge with Bleeder
- Rapid Pressure Rise Relay w/ Seal in Relay
- Cover Mounted Pressure Relief Device
- Nitrogen Test Port/Gas Sampling Valve
- 2 and 4 Position LBOR Switch
- Delta-Wye Switch
- Infrared Viewing Windows
- Doorstops
- Removable Sill
- Electrostatic Shield between HV & LV
- U Channel Base
- Danger and Arc Flash Warning Sign
- Alarm Box Light
- Stainless Steel (304L or 316L) Tank, Base, ATC and Radiators
- Nitrogen Preservation System
- Neutral Grounding Resistors and High Resistance Grounds
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 residential neighborhoods, commercial buildings, industrial facilities, and renewable energy systems.
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!