Lexseco Set the Standard

Lexseco not only introduced the first commercial Core Loss Tester to industry in 1982 but also continues to be the industry leader in the design, development, & manufacture of Core Loss Testing Systems. We spent several years developing the first commercial Core Loss Tester and test database, and in the ensuing decade, established Lexseco as a leading educator in core testing science.

In the late 1970's, Lexseco's founding engineers recognized that no quick and convenient method existed for standardized core testing. We recognized that core loss was a significant cause of wasted electrical energy that could result from overheating during operation or during winding burnout, as well as from physical damage. Subsequent analysis revealed that core loss is second only to copper loss in motor windings in causing motor inefficiency. Without core loss testing, it cannot be determined that a motor is capable of operating at rated efficiency after rebuilding.

The Lexseco Core Loss Tester provides high current at low voltage to simulate operating conditions in the core. Flux, amperes and watts readings, and core dimensions, are fed into the Tester's computer system which calculates watts/lb. (kg) of core loss. With parameters for "bad", "marginal" and "good" cores, the software generates a detailed printed core condition report. Localized damage is found by increasing the excitation level to reveal hot spots within the core.