Switchgear breakdowns are frequently caused by excessively high contact resistance at breakpoints and busbar joints. Moreover, overheating risks are becoming more serious due to the fact that today's distribution networks have to carry heavier loads. Checking contact resistances at...
Digital Low Resistance Ohmmeters (DLRO) are a family of highly accurate instruments that provide a simple, practical and reliable means of making low-resistance tests in the field. They also are ideal for production quality control. They operate on the four-wire measurement prin...
The TTR300 Series of three-phase transformer turns ratio test sets are designed to measure the turns ratio of power, instrument, and distribution transformers in a substation or manufacturing environment. The instruments are ideal for use by power transformer manufacturers. Their u...
The Three-Phase Automatic TTR is designed to measure the turns ratio of power, instrument, and distribution transformers in a substation or manufacturing environment. At 16.5 lbs (7.5 kg), it weighs less than any other commercially available instrument. A rugged and robust design m...
The Single-phase TTR® Transformer Turns Ratio Test Set measures the turns ratio and exciting current of windings in power, potential and current transformers. Deviations in turns ratio readings indicate problems in one or both windings or the magnetic core circuit. The TTR test ...
The OTS60AF/2, OTS80AF/2 and OTS100AF/2 are used for determining the dielectric strength of liquid insulants, such as the insulating oils used in transformers, switchgear and other electrical apparatus. The test sets are fully automatic. The operator has simply to prepare the te...
The TM1800™ is the instrument platform for circuit breaker maintenance, based on more than 20 years’ experience of over 4,000 delivered breaker analyzers. The modular construction makes it possible to configure the TM1800 for measurements on all known types of circuit breakers in o...