Megger BM5200 5k Insulation Tester, Digital/Analog Display, 100GΩ, CATIII 600V
The BM5200 5 kV insulation resistance tester is specifically engineered for conducting high voltage insulation resistance assessments in the maintenance and servicing of cables, rotating machinery, transformers, switchgear, and various industrial applications.
Utilizing the BM5200, users can execute DC insulation tests at voltage levels of 250 V, 500 V, 1000 V, 2500 V, and 5000 V. The device’s insulation resistance measurement range spans from 100 kΩ to 1000 GΩ. Additionally, it features an automatic discharge function for capacitive circuits under examination and presents decaying voltage readings.
This instrument is powered by batteries and is equipped with both digital and analogue arc displays. Furthermore, it incorporates a guard terminal to enhance the precision of its measurements by reducing the impact of surface leakage, which can result in inaccuracies during testing.
Electrical insulating materials deteriorate with time leading to breakdowns and costly repair bills. Insulation resistance testers apply a regulated DC voltage across the insulation and measure current flow through it applying Ohm’s law to calculate insulation resistance. The current flows because no insulation material is perfect.
– Product test and qualification
– Installation of equipment
– Routine maintenance
– Problem resolutions
Insulation testing with high voltage DC affects insulation polarisation such that consecutive testing without complete discharge of the unit under test will yield different results. Care should be taken to always employ the same process and technique of connecting to and testing an insulator to be able to trend results. It is important to record temperature of the insulation as well as IR values.
