it uses for alternator protection purpose; when fault occures in alternator it resists that fault current to gound . srikanth, kaenataka .
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In North America the neutral wire is never fused. This is because of the three wire circuit that uses a common neutral. If there are two loads connected across a common neutral circuit and the neutral opens a 230 volt supply will be impressed across both loads as they are now in series with the supply. If both loads were balanced then the voltage drop across both loads would be equal. Dropping 120 volts across each load. Where the problem arises is if the two loads are not balanced and voltage drop goes higher than the manufactures recommended voltage, then the connected device could burn out.
a traditional rcd wont work as it uses the difference between the incoming active and neutral to detect current loss it has to read 0. In particular, an RCD alone will not detect overload conditions, phase to neutral short circuits or phase to short circuits. Over-current protection must be provided.
Yes <<>> In North America, a three wire 120/240 volt system uses a neutral wire. For 240 volts two "hot" wires are used with no neutral.
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To find out what the missing link is.
The Likert Scale
To open your NAT on a 2wire 3800hgv-b that uses centry link kindly refer to your user manual.
RAM, usually.
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