While current overload relays provide essential protection, they must be regularly maintained and tested to ensure they function correctly when needed. Proper maintenance ensures that relays are calibrated accurately and can respond to overload conditions promptly. Below are some key aspects of maintaining and testing current overload relays:
Inspection: Regular visual inspections should be performed to check for any signs of wear, damage, or corrosion. This includes checking the wiring connections, contacts, and any exposed components that may be susceptible to environmental damage. Calibration: Over time, relays may drift from their intended settings due to factors like aging or environmental conditions. It is crucial to recalibrate overload relays to ensure that they are correctly set to protect the system at the right current threshold. Manufacturers often provide specific calibration instructions that should be followed to maintain accuracy.
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