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Promoted
Lagos, Ojo, 2 hours ago
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Metal Arrestor
Furse
Brand
Metal arrestor
Type
Brand New
Condition
Store address
Lagos State • Ojo
F1522 Alaba international market ojo
Alaba garage
Closed
• Mon, Sat, 07:00-18:00
An electrical arrester is a protective device that safeguards power systems and sensitive equipment from transient overvoltages caused by lightning or switching impulses. It functions by instantly diverting harmful high-voltage surges to the ground, and then returns to its normal non-conductive state once the surge passes.Arresters operate on a straightforward principle and come in a few common configurations:How They Work: During normal operation, an arrester acts as an insulator. When a severe voltage spike hits the power line, the arrester's internal resistance drops dramatically, providing a low-impedance path to harmlessly discharge the current into the earth.Metal Oxide Varistors (MOVs): Most modern surge and lightning arresters use metal oxide blocks. These materials act as non-linear resistors, instantly changing their resistance.
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