• Part of TRAMCO's reputation is the repair and rebuilding of electric motors.
• TRAMCO's service experience ranges from fractional horse power to thousand-plus horsepower motors including all brands.
• Our expertise is not limited only to motors, we also repair and/or build controls and other electrical devices.
• Our Motor Rebuild and Electric Department repairs all types of AC and DC motors, train generators, tractor motors transformers and water pumps. We offer repair of all electrical, gas, diesel pumps. Submersible pumps including dewatering and trash pumps.
• Our VPI (Vacuum Pressure Impregnation) System insures quality treatment of electrical motor windings.Vacuum Pressure Impregnation is a process that is a step above the conventional vacuum system. VPI includes pressure in addition to vacuum, thus assuring good penetration of the varnish in the coil. The result is improved mechanical strength, electrical properties and thermal performance. This means improved heat transfer by eliminating air/gas pockets and makes it impossible for moisture or other contamination to degrade the system. The solid void-free structure reduces the possibility of internal corona damage on high-voltage machines. VPI minimizes coil movement, slots are completely filled, and by the use of suitable fibers laminated structures and bracing materials a solid reinforced end winding structure is obtained. This ensures improved reliability and long service life. The core wire is completely filled and sealed. This eliminates problems due to loose cores and provides positive protection against migration of moisture and other contamination through the core.
• We offer job site vibration analysis testing as well as surge testing, preventative maintenance testing, and balancing. In the shop we also offer balancing and load testing.
• Specialized testing of plant equipment such as the Vibration Analysis is individualized to your company's needs The equipment list will record all of your electric motors, gear boxes, and speed reducers. The analysis will record bearing temperature on the drive end and the side opposite the drive end is also recorded. From this information we are able to determine which equipment are in need of attention and in some cases, able to give probable cause of the vibration. This is one example of a test we offer that conforms to the customer's specialized needs.
• Motor exchange inventory We offer a complete motor exchange program of AC and DC motors such as Joy, S&S, Siemens, Teco, Westinghouse, and Leeson motors, Prosser, Cat, and Flyght pumps, control boxes, speed reducers, cable reels, and more. We are continually buying new units for exchange for better selection

Surge Testing

Digital Surge Testing

Surge testing of A/C electric motors and generator windings displays a accurate picture of the winding and insulation conditions. Tests made can determine good, marginal or defective windings and the winding insulation before a major failure occurs. In many cases actions can be taken to head off these failures, preventing costly delays and repairs. This digital surge tester applies a predetermined voltage and captures a sinusoidal wave form for each phase of the unit under going the test. It also displays megohms and Hi-Pot measurements. All the information is used to make the correct decision on what repairs are needed.

This is a Surge Test:

The wave form showing a good winding. You will notice how each of the three phases overlap each other. Representing what appears to be only one wave line. Pictured is the windings that are being tested, no faults are present.

Turn to Turn / Phase to Phase Weakness:

 
If there is a Turn to Turn / Phase to Phase weakness The wave patterns will separate and appear unstable This is an indication of imminent failure. The motor should be serviced immediately. Pictured is a turn to Turn / phase to phase fault.

Ground Faults:

If there is weak insulation the wave pattern will indicate the weakness. If a motor with a turn to turn fault short stays in service circulating currents may produce hot spots and the ground wall insulation will eventually burn up causing a shut down. Pictured is a ground fault.

Core Loss Testing:

Core loss testing has become essential in ensuring quality electric motor and generator repairs. The stator lamination is tested to determine the watts loss per pound of steel magnetic core iron. When electric motor & generator windings fail, they often damage the stator lamination. This causes hot spots to develop leading to premature winding failures. If your company has had an electric motor or generator repaired only to have the machine run hot and burn up after a short operating time, the most likely cause was a damaged stator lamination core. This problem will no longer be a cause of concern when this test is performed.