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neutral Earthing resistor restricts the flow of
current during an earth fault on an AC distribution
system. It is connected between the neural point of
a transformaer or generator and earth. Although a
neutral earthing resistor will probably be active
for just a few seconds during its operational life,
it musc offer dependable protection at all time in
case of fault. |
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Discharge Test : Periodical discharge test on
station batteries is a mandatory requirement for
users. These tests ensure reliability, better
service and enhance life performance of the battery
system. Battery manufacturers specify Yearly / Half
Yearly / Quarterly Charge / Discharge cycle tests. |
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Silicone Cement Coated Tabular Resistors from the
most compact and reliable type of unit possible for
rating from 10 Watt to 500 Watt. They are
mechanically robust, constant in Ohmic Value and
withstand the most severe conditions of humidity. |
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The design of wire and plate grid, lends itself
to various advantages over conventional cast iron
grids and standard wire wound resistor assemblies.
In the assembly design breakable parts are excluded,
resulting in robust construction. In the wire grid
assemblies, the unique terminal arrangement,
facilities easy replacement of individuals grid. |
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The Grid Resistance consists of helix of an edge
wound resistance strip mounted on porcelain
insulators which are located on a steel support
acting also as mounting.
Maximum surface area of resistance material is
exposed to the cooling air to give high thermal
capacity and excellent ventilation. This enables
ratings to be considerably increased where the
loading is intermittent and of short duration. |
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Neutral Earthing Resistors For
Fault Protection
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Battery Discharge Resistor
Unit |
Wire Wound Resistors
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Wire / Plate Grids
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Edge Wound Resistors |
