The light arrester is the device that
protects the damage to any apparatus for which it is used, due to surge in
electricity or high voltage. The
lighting arresters are used to give low impedance path to the current surge to
the ground to prevent the device. It then resorts the normal operating
conditions. It can be compared to the
relief value on a boiler. It releases high pressure until normal conditions are
restored. The arrester must perform the two basic functions. It first must
provide a point where surge can go to the ground. And second, it, at the same
time, has to prevent the blow up current from going to ground.
The lighting strokes can be of different
kinds. It can be direct and indirect. The direct lighting stroke means that the
stroke is direct from the cloud to the subject.
The stroke can pass over the insulator from pole to the ground.
Indirect stroke involves charging from
charged clouds passing over the subject equipment. It is electro statically
induced charge. The lighting can destroyed the insulators and if it hits the
wires of the transformers it can cause wide spread damage
The lighting arresters Lightning Arresters
Manufacturers in Delhi can
also be of different classes. The
station class arresters are used in high voltage installation and power houses
.Intermediate class arresters are used in substations, Distribution class
arresters are equipped mainly used in transformers both dry and liquid filled
types . Secondary class is for homes and business establishments.
Porcelain
insulators
Insulators are used to prevent flow of
current from supporting points to the ground. The role of insulators is vital
in the electrical installations. They offer high resistance to the flow of
current to the ground. The poles and
towers are firmly grounded and insulator material is needed to prevent current
flowing from lines to the ground. Insulators are made from different materials
and one of the materials is porcelain. The wet porcelain material is used in
making the porcelain insulator. The porcelain is actually aluminum silicate and
it is mixed with plastic, feldspar, quartz and kaolin to obtain the final
glazed and hard porcelain material. This is the most common insulator Porcelain insulators
manufacturers in Delhi materials
used for overhead porcelain insulator. The surface of the material is glazed so that
water is not able to stagnate on it. The other types of insulators are glass
insulators, and polymer insulators. The insulator can be of three types such as
pin insulator, stray insulator, and suspension insulator.
