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    Gas discharge tubes for lightning transmitting antenna

     

    Ceramic gas discharge tube using sealed package, in the discharge gap is filled into the appropriate gas medium (argon or neon gas), together with the high activity of the electron emission materials and discharge ignition institutions, is a special metal-ceramic structure of the gas discharge devices.
    Under normal circumstances, the discharge tube because of its unique high impedance (≥ 1000MΩ) and low capacitance (≤ 2pF) characteristics, as a protective device in access lines, the line of work for little or no adverse effects, and when harmful transient voltage fleeing, the discharge was first breakdown discharge. The impedance decreased rapidly, was almost short-circuit state. Will be harmful to the earth leakage current through the ground, while the voltage limit on discharge of the arc (about 20V), eliminating the harmful transient over-voltage and over-current, thereby protecting the circuit and components, when the overvoltage disappears, discharge and rapid return to high-impedance state, the line continues to work properly.
    Photo is the composition of the gas discharge tube surge arresters and medium wave radio transmitter output cable connections.
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    Gas discharge tube according to the choice of P transmitter power to choose. Select the appropriate "rated voltage" of the discharge tube is very important, the rated voltage is too high, would not achieve the role of lightning, not too low then the transmit power output; capacitor C using ceramic capacitors and multi-polar capacitor in series only, once the individual capacitor damage does not affect the transmitter power output. ,
         Installation of a lightning location is also very important. Formed by the gas discharge tube arrester in series with the output feeder (coaxial cable), the discharge tube one end of coaxial wire, other end of the coaxial cable shield (shielded cable network system ground). The following are usually equipped with a transmitting antenna and a matching network discharge ball. There is some lightning matching network design. Therefore, in order to effectively lightning, the lightning arrester should be installed in the nearest vicinity of the transmitter or transmitter output directly mounted arrester and then to the output cable, such as the end of the coaxial cable (the antenna on the front) installation of a lightning arrester, lightning protection is more effective good.


       Schedule is three transmitters equipped with gas discharge tubes.

    please Click hereto get our dipole antenna
    Author: Ho Yi
    Schedule:
    Medium-wave transmitter power

    1KW

    3KW

    10KW
    Discharge voltage

    1000V

    1500V

    2500V
    Capacitor C

    10 223/2KV

    please Click hereto get our dipole antenna

     

     

     

     

     

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