Earthing
LA , Lighting Arrester
A lightning arrester (alternative spelling lightning arrestor) (also called lightning isolator) is a device, essentially an air gap between an electric wire and ground, used on electric power transmission and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning. The typical lightning arrester has a high-voltage terminal and a ground terminal. When a lightning surge (or switching surge, which is very similar) travels along the power line to the arrester, the current from the surge is diverted through the arrester, in most cases to earth.
AB SWITCH
DO FUSE/ HG FUSE
HG FUSE
Transformer
In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. A varying current in any coil of the transformer produces a varying magnetic flux in the transformer’s core, which induces a varying electromotive force (EMF) across any other coils wound around the same core. Electrical energy can be transferred between separate coils without a metallic (conductive) connection between the two circuits. Faraday’s law of induction, discovered in 1831, describes the induced voltage effect in any coil due to a changing magnetic flux encircled by the coil.
Transformers are used to change AC voltage levels, such transformers being termed step-up or step-down type to increase or decrease voltage level, respectively. Transformers can also be used to provide galvanic isolation between circuits as well as to couple stages of signal-processing circuits. Since the invention of the first constant-potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electric power. A wide range of transformer designs is encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume, to units weighing hundreds of tons used to interconnect the power grid.
DTR STRUCTURE
Distribution transformer
A distribution transformer or service transformer provides a final voltage transformation in the electric power distribution system, stepping down the voltage used in the distribution lines to the level used by the customer. The invention of a practical, efficient transformer made AC power distribution feasible; a system using distribution transformers was demonstrated as early as 1882.
If mounted on a utility pole, they are called pole-mount transformers. Suppose the distribution lines are located at ground level or underground. In that case, distribution transformers are mounted on concrete pads and locked in steel cases, thus known as distribution tap pad-mount transformers.
Distribution transformers typically have ratings less than 200 kVA, although some national standards allow units up to 5000 kVA to be described as distribution transformers. Since distribution transformers are energized 24 hours a day (even when they don’t carry any load), reducing iron losses is vital in their design. They usually don’t operate at full load, so they are designed to have maximum efficiency at lower loads. To have better efficiency, voltage regulation in these transformers should be kept to a minimum. Hence, they are designed to have small leakage reactance.
PM Cabli joints & temination
Termination Kit
Our product range includes a wide range of heat shrinkable indoor termination kit for 33kv, heat shrinkable indoor termination kit for 22kv, heat shrinkable outdoor termination kit for 33kv, heat shrinkable indoor termination kit for 11 kv, heat shrinkable outdoor termination kit for 11 kv and heat shrinkable outdoor termination kit for 22kv.
- Heat Shrinkable Indoor Termination Kit for 33KV
- Heat Shrinkable Indoor Termination Kit for 22kv
- Heat Shrinkable Outdoor Termination Kit for 33kv
- Heat Shrinkable Indoor Termination Kit for 11 KV
- Heat Shrinkable Outdoor Termination Kit for 11 KV
- Heat Shrinkable Outdoor Termination Kit for 22kv