Zinc oxide block in Reactive power compensation energy-saving devices in the

In order to limit the instantaneous capacitor cut dangerous overvoltage arrester is commonly connected between the conductor and the ground, in parallel with the protective equipment. When the protected equipment operating at normal operating voltage, lightning does not move, that is regarded as disconnection. If an over-voltage, and is threatening the protective equipment insulation, surge arresters immediate action, the impact of high voltage current to the earth, thereby limiting the voltage amplitude, the protection of electrical equipment insulation. When the overvoltage disappears, the arrester rapid restitution, enabling the system to normal supply, the role of lightning is a discharge gap through a parallel or non-linear resistance to the role of cut pieces of the invasion wave flow, reduce equipment to be protected by the overvoltage value. Surge arresters can be used to protect the atmosphere over-voltage, also be used to operate the overvoltage protection. Effect is to limit overvoltage arrester to protect electrical equipment.
Zinc blocks selection and installation, should be based on their connections, possible over-voltage times capacitor capacity and surge capacity may check; lOkV voltage level and the complement system, the Zinc Oxide discs should normally be connected to the "phase one between the land ", the characteristics of this wiring arresters are higher, such as when a phase to ground fault occurs, the two non-fault phase arrester three-phase capacitor must withstand the impact of savings overvoltage, phase overvoltage We had to be subject to two levels of protection on the ground arrester residual voltage of algebra and the like, which is the inadequacy of the wiring pattern.