BPS255IEC

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Gas Discharge Tube Arresters (GDT) are electrical protection components used in electrical systems to prevent any sudden power surges or changes in voltage from damaging electrical equipment. GDTs absorb the energy of a surge or impulse and prevent it from reaching the protected electrical system. One type of GDT is the BPS255IEC, an intermediate class arrester. This type of arrester has been designed with the IEC standard for lightning protection, which specifies that it must be able to absorb a minimum of 10kV of energy.

A BPS255IEC arrester is composed of two main components: a spark gap and a gas discharge tube. The spark gap is designed to short-circuit the transformer if the voltage is too high, and the gas discharge tube is designed to dissipate excessive energy. The gas discharge tube contains a mixture of non-flammable gases that, when exposed to a voltage greater than its breakdown voltage, will break down into ions, causing an electrical arc that will absorb the excessive energy.

The BPS255IEC arrester is designed for use in residential, commercial, industrial and high voltage applications, and is suitable for use in outdoor environments such as high voltage transmission lines and substations. It is designed to withstand electricity surges up to 255kV, which is much higher than the minimum IEC requirement of 10kV. The arrester is composed of solid zinc oxide blocks, which are arranged in series, allowing it to reduce an incoming voltage to a safe level. These blocks are separated by arcing chamber chambers that are filled with a mixture of gases.

In operation, the BPS255IEC arrester reduces the voltage of the incoming surge, dissipating the energy in the process. This is done by the zinc oxide blocks which absorb some of the excess energy, while the arcing chamber filled with gas works to produce an arc, resulting in the dissipation of the rest of the energy. This process works to reduce the incoming voltage from a dangerous magnitude to a safe level.

In conclusion, the BPS255IEC arrester is a type of GDT used to protect electrical systems and equipment from surges in voltage. It is composed of two main components, a spark gap and a gas discharge tube, and is designed to absorb energy up to 255kV. The arrester works by reducing the incoming voltage to a safe level through the use of zinc oxide blocks and an arcing chamber filled with gas. This effectively protects the electrical system and equipment, while also enabling them to operate at their maximum potential.

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