摘要:
A surge suppression system provides surge protection both locally within the radio station building where the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.
摘要:
The present invention relates to a smart bonding method. In the smart bonding method for equipment in which a power source and a communication line are connected to each other, a surge protector for the power source is connected to the power source line, and a surge protector for communication is connected to the communication line. Also, the ground terminals of the surge protector for the power source and of the surge protector for communication are connected to each other to form a common ground terminal. Here, the common ground terminal is connected to the conductive frame of the equipment. As described above, the potential difference between all lines of the equipment is equal to the potential of the ground through the surge protectors. Thus, a surge current may be interrupted to fundamentally prevent damage due to a lightning surge from occurring.
摘要:
A wireless explosion-proof apparatus includes an antenna, an explosion-proof chamber, a communication module disposed in the explosion-proof chamber, the communication module configured to transmit and receive a wireless signal through the antenna, a connector portion having a central conductor, to which the antenna is electrically connected, the central conductor having one end connected to the communication module through a connection line and the other end exposed to the outside of the explosion-proof chamber, and a short stub module disposed in the explosion-proof chamber and disposed on the connection line, the short stub module configured to secure electric conduction between the one end of the central conductor and a ground so as to keep potential of the central conductor at certain potential.
摘要:
A fine arrestor having a body with a bore there through, an inner conductor within the bore, an inner conductor capacitor within the bore coupled between a surge portion of the inner conductor and a protected portion of the inner conductor, and an inner conductor inductor within the bore coupled electrically in parallel with the inner conductor capacitor. A first shorting portion coupled between the surge portion of the inner conductor and the body and a second shorting portion coupled between the protected portion of the inner conductor and the body, for conducting a surge to ground. Also, other coaxial in-line assemblies may be formed incorporating the inner conductor cavity for isolation of enclosed electrical components.
摘要:
An electronic circuit includes a first signal line that extends along a first direction, a spark gap device that has a first conductive trace and a second conductive trace, the first conductive trace being connected to the first signal line. The first and second conductive traces are spaced apart to define a spark gap, the first and second conductive traces being aligned along the first direction to direct an electrostatic discharge along the first direction from the first signal line through the spark gap to a ground reference electrically coupled to the second conductive trace. A second signal line is connected to the first conductive trace or to the first signal line in a vicinity of the first conductive trace, the second signal line extending along a second direction at an angle relative to the first direction.
摘要:
An apparatus for providing electrostatic discharge protection includes a first conductive trace and a second conductive trace. The first conductive trace defines a first conductive periphery and is deposited on a first surface. The second conductive trace defines a second conductive periphery and is deposited on a second surface. The second surface is spaced apart from the first surface by a gap distance and in parallel relation so that a spark gap is defined by the gap distance between the first conductive periphery and the second conductive periphery.
摘要:
The invention relates to an interference filter and lightning conductor device (1) comprising an inner conductor (3) and a housing (2) which is arranged approximately coaxially in relation to said conductor. Connectors (7, 8) for connecting coaxial lines are provided at both ends of the housing (2). At least one pair of lines (5, 6) is arranged in a cavity (32), coaxially to the inner conductor (3), forming a connection between the inner conductor (3) and the housing (2). Said two lines (5, 6) are parallel and arranged at a distance from each other, the flow directions of the currents in the two lines (5, 6) being oriented away from each other. Said arrangement improves the grounding of interfering impulses or interfering signals, residual voltages and residual energies being largely eliminated.
摘要:
The invention relates to an automatically quenching surge arrester arrangement with a surge arrester, which, on exceeding a given first voltage, transforms from a non-conducting into a conducting state and returns to the non-conducting state only when a much smaller second voltage is dropped below and with a switch mechanism reacting to current flow through the surge arrester, interrupting the current flow through the surge arrester and then automatically returning to the rest condition thereof. A simple, robust and compact assembly suitable for HF applications for such a surge arrester arrangement is achieved, whereby the switch mechanism reacts reversibly to the heat generated in the surge arrester by the current flow.
摘要:
An apparatus for providing electrostatic discharge protection includes a plurality of conductive circumferential extensions defined by overlapping circular voids between a first conductor surface and a second conductor surface.