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Custom Transformers Engineered For You

In the transformer manufacturing industry, very few orders can be classified as “Standard”, but when they are, Olsun certainly builds them and builds them better.

So if they aren’t standard, what are they? Customers tend to label them “Custom Transformers” or “Special Transformers” but here at Olsun we think a more appropriate term is “Engineered”. In reality, we engineer to order. After all, we have been an engineering company from the start.

Our business is grounded in engineering design expertise.  The hard stuff doesn’t phase us–we’re up to the challenge.

Like our tagline says, “We can do that!”

What are the most requested elements that call for engineering above the standard parameters?

  • Busing Arrangements
  • Retrofit Physical Specs
  • Meters
  • Breakers
  • Neutral Ground Resistors [NGRs]
  • Primary Disconnects
  • Core/Coil Size
  • Enclosure Sizing
  • Customized Documents
  • Special Certifications
  • Motorized Tap Switches

Uncommon applications are common for us; and that’s a differentiating factor that sets Olsun Electrics apart from our competition. Let Olsun design a custom transformer for your specific needs.

Custom Transformer Accessories

Olusn Electrics offer these accessories which can be added to any Special transformer:

  • Dust Filter
  • Forced Air & Provisions for Forced Air
  • Rodent Proofing
  • Space Heater
  • Temperature Monitor & Alarm
  • Thermal Switch

Some “Special” Examples


What Makes Project 207140 Special?

No-Load, Motorized Tap Switch

Generally, a motorized tap changer or tap switch is associated with a Test Transformer. The tap changer switch saves time in the test lab which in turn leads to saving money overall.

Here are the primary Advantages/Benefits to a Tap Switch:

  • Accommodates fast tap change operation for test transformer applications/Minimizes test time by eliminating need to “move jumpers”
  • Provides a level of safety/Personnel are not exposed to transformer tap connections
  • Allows remote operation/Tap changing control can be consolidated or streamlined with other test equipment in test office
  • Interlockable/Provides level of safety to assure no-load tap changer is not operated while energized
  • Makes field/site location tap adjusting easier for non-technical, non-mechanical personnel/Adds a safety benefit for those working on the transformer who may not be totally familiar with the product

Solution: ,

What Makes Project 207261 Special?

Fused Load Interrupter Switch in High Voltage Compartment

It’s the combination of this unit being a Pad Mount Transformer and being equipped with a Primary Fused Load Interrupter Switch that makes this unit “Special”. There are not too many requests for this particular combination and fewer manufacturers who are willing and able to build it. But at Olsun Electrics—“We Can Do That!”

Olsun Pad Mount, Compartmentalized Dry Type Transformers are engineered to provide a low cost, non-toxic, non-polluting, securely enclosed package for modern underground power distribution systems—in locations where the general public may be present. They are less hazardous and require less maintenance than liquid filled transformers.