Composite jacket parallel gap lightning arrester
A composite jacket and arrester technology, applied in the field of arresters, can solve the problems of many faults, short service life of the gapless arrester, unstable electrical performance of the series split-gap arrester, etc., to achieve reliable protection performance, stable electrical performance, and improved service life. Effect
Pending Publication Date: 2021-05-28
LIAONING HUALONG ELECTRIC POWER TECH
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Problems solved by technology
[0004] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a compound jacket parallel gap surge arrester to solve the problems of short service life of the gapless surge arrester, many faults and unstable electrical performance of the series split gap surge arrester
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[0012] Such as figure 1 As shown, a compound jacket parallel gap surge arrester of the present invention includes: a surge arrester body 1 , a discharge rod 2 and a discharge ball 3 . The arrester body includes a core body, a silicone rubber jacket 12 , a first conductive bolt 11 and a second conductive bolt 18 . The core body is composed of an SMC layer 14 and a first electrode 13 , five resistor sheets 15 and a second electrode 16 arranged in the SMC layer 14 in sequence. The silicone rubber jacket 12 is wrapped around the core body, one end of the discharge rod 2 passes through the arrester body to connect to the first electrode 13 , and one end of the discharge ball 3 passes through the arrester body to connect to the second electrode 16 . The two ends of the silicone rubber jacket 12 are equipped with end caps 17, the first conductive bolt 11 is connected to the first electrode 13 through the end cap on one side, the first conductive bolt 11 is connected to the high-volt...
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The invention provides a composite jacket parallel gap lightning arrester, which comprises a lightning arrester body, a discharge rod and a discharge ball, wherein the lightning arrester body comprises a core body, a silicon rubber jacket, a first conductive bolt and a second conductive bolt, the core body is composed of an SMC layer, and a first electrode, five resistor discs and a second electrode which are sequentially arranged in the SMC layer, the silicon rubber jacket wraps the core body, the discharge rod is connected with the first electrode, the discharge ball is connected with the second electrode, end covers are mounted at two ends of the silicone rubber jacket, the first conductive bolt penetrates through the end cover on one side to be connected with the first electrode and is connected with a high-voltage bus, the second conductive bolt penetrates through the end cover on the other side to be connected with the second electrode and is connected with a ground wire, and the discharge rod and the discharge ball form a parallel discharge gap of the lightning arrester body. According to the invention, the parallel gap design is adopted, the lightning arrester body does not independently bear the task of releasing overvoltage and current any more, the overvoltage and current is released through the parallel gap, and large current can be shared, so that the service life of the lightning arrester is greatly prolonged.
Description
technical field [0001] The invention belongs to the technical field of lightning arresters, and relates to a composite jacket parallel gap lightning arrester. Background technique [0002] The traditional gapless surge arrester simply uses the nonlinear volt-ampere characteristics of the resistor to protect the system. When the overvoltage occurs and reaches the threshold value of the resistor, the arrester conducts and releases the overvoltage current to the ground, thereby protecting the system from Getting hurt. That is to say, the surge arrester releases the overvoltage current during the whole process. When it is released repeatedly, or exceeds the nominal discharge current of the arrester, it will cause damage to the arrester and lead to accidents. [0003] Traditional gap arresters and lightning protection gaps are mostly protected by series gaps, which cannot share the large current of overvoltage for the arrester body. Moreover, the gap and the arrester body are d...
Claims
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Login to View More IPC IPC(8): H01C7/12
CPCH01C7/12
Inventor 刘晓强于继枕由仁宽王晓利
Owner LIAONING HUALONG ELECTRIC POWER TECH