The choice of gas discharge tube P is selected according to the power of the transmitter. The drawings are the connection diagrams of the arresters composed of the gas discharge tube and the medium wave broadcast transmitter output cable. The harmful current is discharged through the ground, and the voltage is limited to the arc of the discharge tube (about 20 V), eliminating the harmful instantaneous overvoltage and overcurrent, thereby protecting the lines and elements, and after the overvoltage disappears, The discharge tube quickly returns to high impedance state, and the line will continue to work. Its impedance declines rapidly, almost short-circuited. When the hazardous instantaneous overvoltage is blown, the discharge tube is first broken down. Under normal circumstances, the discharge tube is due to its unique high impedance (≥1000mΩ) and low capacitance (≤2pf) characteristics, there is almost no adverse effect on the normal operation of the line as a protective element in the access line.
The ceramic gas discharge tube adopts a sealed package, which is filled into a suitable gas medium (argon or helium) in the discharge gap, and is equipped with a highly active electron emission material and the discharge ignition mechanism, which is a special metal ceramic structure.
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