Guide to Low Resistance Testing
Posted on3 Years ago
by
Low resistance measurements, with a unit like a Megger DLRO10HD 10 Amp Digital Low Resistance Ohmmeter are required to prevent long term damage to existing equipment and to minimize energy wasted as heat. They indicate any restrictions in current flow that might prevent a machine from generating its full power or allow insufficient current to flow to activate protective devices in the case of a fault. Periodic tests are made to evaluate an initial condition or to identify unexpected changes in the measured values, and the trending of this data helps indicate and may forecast possible failure conditions. Excessive changes in measured values point to the need for corrective action to prevent a major failure.