Ads
related to: when to use fused disconnect
Search results
Results From The WOW.Com Content Network
In electrical distribution, a fuse cutout or cut-out fuse (often referred to as a cutout) is a combination of a fuse and a switch, used in primary overhead feeder lines and taps to protect distribution transformers from current surges and overloads. An overcurrent caused by a fault in the transformer or customer circuit will cause the fuse to ...
Fuse selection depends on the load's characteristics. Semiconductor devices may use a fast or ultrafast fuse as semiconductor devices heat rapidly when excess current flows. The fastest blowing fuses are designed for the most sensitive electrical equipment, where even a short exposure to an overload current could be damaging.
In electrical engineering, a disconnector, disconnect switch or isolator switch is a type of switching device with visible contacts, used to ensure that an electrical circuit is completely de-energized for service or maintenance.
The transformer is always connected to the primary distribution lines through protective fuses and disconnect switches. For pole-mounted transformers, this is usually a 'fused cutout.' An electrical fault melts the fuse, and the device drops open to give a visual indication of trouble.
These terminals are manufactured by many companies, commonly using the terms "quick disconnect", "quick connect", "tab" terminals, "spade" terminals [1] or blade connectors; without qualifiers, the first two could be mistaken for plumbing connections. [2]
The right-hand column shows the design that prevailed and is in use today. Schuko ( / ˈ ʃ uː k oʊ / ) or type F , is a connector (plug/socket) system used in much (but not all) of Europe. It is a registered trademark [ 1 ] referring to a system of AC power plugs and sockets that is defined as " CEE 7/3" (sockets) and "CEE 7/4" (plugs).
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
On a 3-phase circuit, a recloser is more beneficial than three separate fuse cutouts. For example, on a wye to delta conversion, when cutouts are used on the wye side and only 1 out of 3 of the cutout fuses open, some customers on the delta side have a low voltage condition, due to voltage transfer through the transformer windings .