megohmmeters
What is megohmmeters?
A megohmmeter, also known as a megger, is a specialized type of ohmmeter used to measure high electrical resistance, typically in the range of megohms (millions of ohms) or higher. It applies a high DC voltage (often ranging from 50V to 5kV) to the circuit or component being tested and measures the resulting current. This allows it to determine the insulation resistance of cables, motors, transformers, and other electrical equipment. Megohmmeters are crucial for preventative maintenance, ensuring electrical systems are safe and functioning correctly by detecting insulation degradation before it leads to failures or hazards.
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