Graphite Plate for SPD Surge Protection Device

Product Description

DJX specialized in carbon grate materials and products for more than twenty years, we are confident to provide you high quality products with the most reasonable price, please join us to enjoy our quality and services.

DJX supplies grate plate for SPD Surge Protection Device with various sizes, customerized products are available depending on your pictures and drawings, we will recommend the most suitable grate material for you, please us for more details.

Based on the disadvantage of traditional gap surge protector (SPD), and combined with the material characteristics of grate and Thompson gas discharge theory, a large scale of experiments on the new type of grate gap SPD were completed by open circuit voltage wave generator and ICGS impact system. The results show that, after the high voltage trigger capacitance device was added to the new type of grate gap SPD, every gap was triggered step by step so that the voltage protection level was reduced. At the same time, the grate gap SPD is better than traditional gap SPD on time delay characteristics, and is able to achieve the arc extinction requirements before the power frequency voltage dropped to zero. In addition, grate belongs to non-metal materials; it won't produce plasma under high temperature, which can improve the stability of device and delay aging.Â

Features

SPD grate plate generally made of  isostatic pressing grate, purity more than 99.9%, compression resistance more than 90 mpa and flexural  strength more than 45 mpa, the SPD uses grate plate has features as follows:

1.Protection of large flow, low residual pressure, fast response

2.Using the latest arcing technology, completely avoid fire

3.Using temperature control protection circuit, built-in thermal protectionÂ

4.With the power status indicators, Indicates the working condition of the urge protector

5.Structure knit well, High-reliability and wide range application

6.Large discharge current, discharge current (up to 100 ka), small leakage current, without stream without arc to spill, good thermal stability

Working Principle

Based on arc discharge technology, when the voltage between the electrode reaches a certain degree, the electric circuits or in the communication outside disturbance suddenly produce peak current or voltage, surge protector can in a very short time conduction tap, breakdown of air on the electrode arc creepage, to avoid surge damage to other devices in the circuits.

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