JEFFERSON DRY TYPE TRANSFORMERS
OVER 600 VOLTS
45 KVA JEFFERSON
As of January 2016, this item is replaced by catalog number 423-921A-000
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|Weight and Dimensions
|Installation Note: When using the 120V center tap for single-phase applications, the single-phase load should not exceed 5% of the three-phase KVA rating. Connect the X3 high leg to the B phase per NEC 384-3 (do not use for 120V lighting!). A separate single-phase transformer should be used if the single-phase load is in excess of 5%. .
All specification subject to change without notice. Please contact MIDWEST for certified drawings.
A used, reconditioned, or new surplus 11-4405 45 KVA transformer is serviced per MIDWEST's rigorous procedures based on 30 years experience.
A 11-4405 45 KVA has been maintained and refurbished per industry standards and per MIDWEST's Quality Control Program (QCP).
The services include applicable reconditioning and repair procedures.
In addition to standard electrical tests, MIDWEST also performs live function tests on used, reconditioned, or new surplus transformers.
These services far exceed the routine reconditioning performed by many used transformer dealers, internet lists, and resellers.
MIDWEST certifies the 11-4405 45 KVA transformer has passed our QCP before shipping.
New Surplus Transformers
A new 11-4405 45 KVA surplus transformer is a transformer that has never been installed, but is not "New from the Factory" or "New from the Manufacturer or Distributor."
It may be referred to as new surplus, never installed, never energized, or other such term that avoids the label "New from the manufacturer."
A 11-4405 45 KVA new surplus transformer should not be considered new from the manufacturer or manufacturer's Distributor.
Surplus and new surplus transformers must pass MIDWEST's (QCP) Quality Control Program.
New electrical power transformers are brand new from the manufacturer and carry the manufacturer’s warranty.
New power transformers are manufactured with state of the art manufacturing techniques and materials.
The transformers have passed the manufacturer’s quality assurance inspections and tests.
The packaging and shipping are per the electrical power transformer manufacturer’s warranty requirements.
MIDWEST does not refer to new electrical power transformers as "New Surplus or Never Energized or New in the Box.
These are terms used by resellers and Electrical Service Companies like MIDWEST and typically do not refer to a transformer that is new from the manufacturer.
MIDWEST sells new, used, reconditioned, obsolete, new surplus, and new in the box electrical power transformers, but MIDWEST does not sell electrical power transformers as "New" unless they have been purchased directly from the Transformer Manufacturer and carry the manufacturer’s warranty.
MIDWEST may test new electrical equipment, including transformers, even though they have been purchased new from the manufacturer.
This is especially true of equipment going to Mission Critical facilities.
It is also true for electrical transformers on Acceptance Testing projects and Start Up Engineering projects.
Purchasing used, reconditioned, and new transformers
Used vs. new low voltage general purpose transformers
MIDWEST has tested, maintained, and reconditioned electrical switchgear, including low voltage general purpose transformers, for over 30 years.
When asked if one should purchase a used or reconditioned transformer, instead of a new transformer, MIDWEST recommends purchasing the new transformer.
The availability of used transformers in the secondary market does not suggest a used or reconditioned or new surplus transformer is better than a transformer new from the manufacturer.
Transformers have a reliable life expectancy, say 40 years, and there is an expectation that new transformers are designed better, are built with better dielectric materials, and are more energy efficient.
We know that select older used transformers may be more reliable in some cases because many of the older used transformers were overbuilt.
They might endure the overloading and abusive environments of some installations possibly better than a new transformer.
But this single statement does not permit a blanket statement suggesting used and reconditioned transformers are better than new transformers.
There is one additional caution relative to new transformers.
In a market driven by financial decision makers and in facilities not having staff engineers, MIDWEST often sees a facility purchase transformers totally unacceptable to their application.
A transformer may appear to be a dumb metal box to an outsider, but it is important to specify a transformer appropriate in design and quality for your application.
There is a difference in the design of a transformer for a mission critical facility or hospital or data processing center and the design of a transformer for a shopping center.
All used and new transformers are not alike in reliability and design application.
MIDWEST has electrical power engineers who have the experience and technical expertise to determine the proper transformer for your needs.
Who purchases used, reconditioned, and new surplus transformers
The marketplace for used, reconditioned, rewound, remanufactured, new surplus transformers exists because of several critical challenges to the market for new equipment.
The most critical challenge is the availability.
Many transformers are not available from stock and may take weeks to deliver.
Large transformers may take months.
Transformers come in so many different sizes and voltages that there may be no immediate stock of some voltage size combinations.
And if a manufacturing facility operates using a "just in time supply chain," they require immediate availability.
The only apparent choice may be a used or reconditioned transformer.
Another choice may be to rent a used transformer until you are able to specify and obtain the proper new transformer.
How do you know the transformer is reliable
When purchasing a used or reconditioned transformer, it is extremely important to purchase it from a company that completely tests the transformer.
There are standard specifications for testing transformers.
But MIDWEST goes far beyond the industry standard.
Because of our long history of servicing and selling new and used switchgear, MIDWEST has additional special load, voltage and function tests that assure the reliability of used and reconditioned transformers.
MIDWEST’s Quality Control Program (QCP) is your quality assurance.
MIDWEST must express caution because many used equipment suppliers, internet auction sites, and resellers do no more than clean and paint the transformer.
Some service companies might also perform turns ratio and insulation resistance tests on the windings.
These tests are not assurance of reliable operation.
MIDWEST recommends purchasing only from an experienced service company that has an exceptional Quality Control Program.
View a complete list of JEFFERSON transformers
Other 45 KVA Transformers
45 KVA JEFFERSON TRANSFORMER
- Stock No. 11-4406, 3 Phase, 600 Primary Voltage, 480Y277 Secondary Voltage, 2+2- Taps, STANDARD Impedance Pct
45 KVA SQUARE D TRANSFORMER
- Stock No. 11-4939, 3 Phase, 600 Primary Voltage, 208X120 Secondary Voltage, 4-2.5%FCBN Taps, Impedance Pct
MIDWEST’s reconditioned, new, new surplus, and used transformer inventory is changing constantly.
Frequently, transformers are sold even before they have been placed into MIDWEST's Web site inventory.
If you don’t see what you are looking for, please call 800.803.9256 or 414.461.8200 and speak to one of our Engineering Service Technicians for immediate help.
If you only need the transformer for a short time, you may wish to consider renting a used or new surplus unit.
© 2016 MIDWEST Electrical Testing & Maintenance Co., Inc.