isolatiemeter

An isolatiemeter, also known as an insulation tester or megohmmeter, is an electrical instrument used to measure the electrical resistance of insulation. It is crucial for ensuring the safety and reliability of electrical systems and equipment. The isolatiemeter works by applying a high DC voltage across the insulation being tested and then measuring the resistance. A low resistance value indicates that the insulation is compromised, potentially leading to electrical leakage, short circuits, or even electrical fires.

These devices are commonly used in various applications, including testing the insulation of motors, transformers, cables, and switchgear. Electricians and maintenance personnel rely on isolatiemeters to perform routine checks and identify potential faults before they cause serious problems. The test voltage applied by the isolatiemeter varies depending on the type of equipment being tested and the expected insulation level. Higher voltages are typically used for testing high-voltage equipment.

When performing an insulation test, it is important to ensure that the equipment being tested is de-energized and properly isolated. The probes of the isolatiemeter are then connected to the conductors and the grounding point of the insulation. The device then generates the test voltage and displays the resistance reading. Readings are often compared to manufacturer specifications or industry standards to determine if the insulation is adequate. Regular insulation testing is a vital part of preventive maintenance programs for electrical systems.