Protect your LTC with scheduled maintenance and testing
A Load Tap Changer (LTC) failure can be catastrophic to the rest of the system. We estimate that about 40 percent of LTC-equipped transformer failures are caused by failure of the LTC.
With regular oil testing and analysis, you’ll know when it is time to calibrate or replace wear parts and perform maintenance before they become a legitimate threat to your operation.
The moving parts of a load tap changer make it far more susceptible to routine wear and tear than passive components. When an LTC fails, it can take the transformer with it. Protect this vulnerable component of your electrical system with regular inspection and testing.
what does an ltc inspection reveal?
Mechanical faults, such as worn springs and bearings, can cause suboptimal operation of the LTC, shortening the life of the equipment as it experiences prolonged arcing under heavy loads. Occasionally, contacts can even loosen or fall to the bottom of the tank.
Electrical faults, such as excessively worn or heavily coked contacts, can lead to burned or welded components and potential failure of the unit.
fluid filming and moisture content
Fluid filming and moisture content can seriously hinder the insulating effect of the oil and lead to overheating.
Faulty gaskets can result in cross-contamination of LTC and transformer oil. This condition can sometimes be seen in ratios of combustible gases.
see why scheduled ltc maintenance & inspection are necessary
Prevent transformer failure with a regularly scheduled LTC inspection.
Watch this video to learn how SDMyers' field service technicians can inspect, diagnose and maintain your LTC to prevent catastrophic failure that could take your transformer offline and result in a halt to production.
The SDMyer's field service technician explains what he does during an LTC inspection on various types of LTCs, including draining the oil, an electrical check, an oil flush, and checking the condition of arcing tips and the corrosion on contacts. Even if your oil tests on your transformer are good, the LTC still should be inspected.
If you have difficulty viewing this video, please watch it on our YouTube channel.