MGM Transformer Company

- Liquid Filled Drive Isolation Transformers

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To meet the demands of drives applications, special design and manufacturing processes are utilized. Engineering’s approach is to account for worst case scenarios, assuring conservative designs leading to long transformer life, even under severe applications. Manufacturing utilizes special winding techniques and equipment along with precision assembly and blocking methods, to maintain electrical and mechanical integrity while under stress. MGM Transformer Company specializes in working with drives manufacturers to design and supply transformers to meet their exact equipment requirements. Once specifications are determined, a matrix of designs and pricing can be established for the manufacturer, streamlining the ordering process.

With a product range to10,000kVA in both liquid-filled and dry type, and an engineering staff capable of designing to most any application, MGM Transformer Company is positioned as a leader in drives isolation transformer manufacturing.

Range 3-Phase

  • 200kVA-7,500kVA, 5kV to 34.5kV

Types of Transformers

  • Multi-tapped
  • K-Factor Rated
  • Unit Substation
  • Auto Transformers
  • Scott-connected Transformer
  • Zig-Zag Grounding Transformer
  • Rectifier Duty (6, 12, 18 and 24 pulse)

Transformer Ratings

  • Three Phase up to 34.5 kV
  • 112½ kVA – 10 MVA
  • 50 or 60 Hz

The highest-quality materials and manufacturing processes combined with skilled and flexible custom-engineered design enables MGM Transformer Company to understand, design, manufacture and support to your exact specifications and requirements. We make certain that our world-renowned quality is exemplified by every product carrying our label. MGM’s three-phase liquid-filled secondary substation transformers are specifically designed to change distribution voltages to utilization voltages to meet any industrial or commercial application. All of our products are designed to meet or exceed applicable ANSI, NEMA and IEEE standards and can be supplied with many combinations of terminal arrangements. Our mission is to ensure operational excellence, be the leader in quality transformer product and attain the shortest cycle times in the industry.

Liquid-Filled Standard Features

  • Type I insulating mineral oil
  • 60 Hertz operation
  • 65°C average winding rise
  • Side-mounted bushings
  • HV /LV flange connections
  • Stainless steel nameplate
  • ANSI 61 paint finish, 5 mils thick
  • Pressure test valve
  • ANSI grounding pad
  • Pressure-vacuum gauge
  • Top filter press connections
  • Liquid level gauge
  • Liquid temperature gauge
  • Provisions for jacking and lifting
  • NEMA two-hole ground pads
  • Panel-type radiators as required.
  • Drain/filter valve with sampling device
  • Base suitable for rolling and skidding
  • Dial-type thermometer with maximum indicating hand
  • Externally operated de-energized tap changer providing (2) 2½% full-capacity taps above and below nominal

Optional Features Available

  • 55/65°C average winding rise
  • Forced air cooling
  • Future fan wiring and control
  • Removable radiators
  • Pressure relief device
  • Winding temperature indicator
  • Devices with alarm contacts
  • Top filter press valve
  • HV lightning arresters in ATC
  • Current transformers
  • Stress cones
  • Special impedances
  • Low loss
  • Special ambient
  • Special/low sound level
  • 50 Hertz
  • Retrofit to specific dimensions
  • Neutral grounding resistor
  • Rapid rise pressure relay, cover mounted
  • HV & LV air terminal compartments
  • Tertiary windings for Wye-Wye connections
  • 6, 12, 18 and 24 pulse drives applications
  • Non-standard loading conditions (i.e. Harmonics/K-factor)

  • IEEE (applicable sections)
  • Indoor (R-temp/Silicone)
  • Outdoor
  • 6 and 12-Pulse Applications
  • 55°C,65°C and 55°C/65°C
  • OA, OA/FFA, OA/FA
  • Aluminum/Copper
  • Electro-Static Shield(s)
  • Winding Temperature Indicator

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