Insulation testers are Megger‘s best known products worldwide. In the 19th century, when the first cities became electrified in the course of the industrial revolution, Megger constructed the world’s first ‘hand dynamo’. This patented product generated enough voltage to measure resistances in the megohm range. Today, you can experience the exceptional accuracy, repeatability and reliability of Megger’s insulation testers. Indeed, thanks to Megger‘s advanced guard terminal technology, you can avoid leakage currents that can distort results, giving you accurate insulation measurements quickly and efficiently.
Megger Baker Instruments are designed and manufactured with the purpose of testing and maintaining rotating machinery. They deliver predictive maintenance results with trending information that enables industrial maintenance teams to monitor plant and predict motor failures ahead of time to avert costly downtime
With the increased sophistication of electrical and electronic equipment, and the new micro generation systems being added to the grid, there is now more attention being paid to the quality of supply. Power quality surveys on electrical noise, lamp flicker, load balancing, power factor correction and motor in-rush studies can all be carried out with Megger power quality analysers.
With the increasing dependency of back-up systems on battery strings, and the escalating cost of replacing batteries, instrumentation and software systems that can measure, trend and manage the life-cycle of cells is a cost effective option. There are two methodologies for testing batteries. The first, impedance testing, is an on-line test that can be performed frequently to identify individual weak cells before they fail. The second, battery discharge test, is normally an off-line test and tests the actual output of the whole battery under load conditions. This will show what will actually happen if the battery is required to take the load. Most battery systems are floating and have earth leakage monitors and trips if there is an earth fault. The Battery Ground Fault Tracer allows you to trace a faulty circuit easily in a complex floating system.
Earth or ground resistance testing - One of the most important considerations in an electrical system is the resistance of the earth for reliable operation and safety. Whether you are doing a ground resistivity survey to plan the location of a substation or testing an earth electrode, Megger has an earth tester suitable for the job. Megger has more than 50 years’ experience in designing and building earth resistance testers. The latest generation are CAT IV rated, and have tough molded cases. Variable test frequency keeps noise down, reliability up.