Ordinary drop fuse how to use

by:Mings     2020-05-15
Operators in open drop type fuse, necessary apply appropriate voltage level, after the experimental qualified insulation lever, wear insulated shoes, insulating gloves, insulation cap and the eyepiece or standing on the dry wood, and someone care, in order to protect the personal peace. Operators in la and drop type fuse, at the end of the beginning or can not have shock. Impact will damage fuse, such as the insulator break, crack, the duck mouth against partial and operating ring pull away, broken off, and so on. Staff in the falling type fuse points, closed operation, don't too hard and shock attack, in order to avoid damage to the fuse, and points, must be in place. The process of alloy fuse is slow ( Start) - - - - - - - - - - - - Fast ( When dynamic contact near static contact) - - - - - - - - - - - - Slow ( When the moving contact head near by the end of the closing) 。 The process of pull fuse is slow ( Start) - - - - - - - - - - - - Fast ( When dynamic contact near static contact) - - - - - - - - - - - - Slow ( When the moving contact head near a switch at the end) 。 Fast is to avoid the formation of electrical short circuit and arc burns contact, slowly to avoid operation impact, form a fuse mechanical damage. Distribution transformer stop transmission operation time: under normal conditions, power failure should be pulled low voltage switch of the load side, then open the power supply side of the high pressure drop type fuse. In power under the condition of more, according to the initial power, to avoid the transformer power, if it comes to the problem, maintenance may refuse to move, to extend the time of trouble removal, extends the accident. From the power supply side step by step to stop sending operation, can reduce starting current, Load) Shake, reduce voltage, ensure safe operation.
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