Overvoltage protector of current transformer
A current transformer and overvoltage technology, which is applied to emergency protection circuit devices, emergency protection circuit devices, electrical components, etc. for limiting overcurrent/overvoltage, which can solve the problem of not having a dust-proof plate and being inconvenient for users to use. , can not protect the cover and the current transformer overvoltage protector body fixed connection, etc., to ensure clean, easy to clean effect
Pending Publication Date: 2018-11-02
ANHUI SHUORI PHOTOELECTRIC TECH
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[0004] A Chinese patent discloses a new type of overvoltage protector for current transformers. (Authorized announcement number CN201877821U). This patented technology sets up a high-voltage protection circuit and a short-circuit indicating circuit. When the secondary side of the current transformer is open, the High voltage will be generated during the interval, and the high voltage protection circuit will limit the open circuit voltage within the safe voltage range. At the same time, the short-circuit indicating circuit will emit colored light, indicating that the secondary side open circuit fault of the current transformer has occurred. However, the device does not have a protective cover , the body of the current transformer overvoltage protector cannot be protected, and it is not convenient for the user to use. There is no iron sheet and magnet, and the protective cover cannot be fixedly connected to the current transformer overvoltage protector body, which is not convenient for the protective cover. Fixed, without dust-proof plate, positioning bolts and bolt holes, the dust-proof treatment of the heat dissipation port cannot be realized. When the dust-proof plate is covered with dust, it is not convenient to regularly clean the dust on the dust-proof filter, and heat dissipation cannot be guaranteed Mouth cleaning
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[0021] Such as Figure 1-Figure 3 As shown, a current transformer overvoltage protector includes a current transformer overvoltage protector body 1, the upper surface of the current transformer overvoltage protector body 1 is provided with a working area 2, and the current transformer overvoltage protector The front surface of the main body 1 is fixedly connected with a magnet 3, and one side surface of the current transformer overvoltage protector body 1 is provided with a heat dissipation port 7, and one side surface of the current transformer overvoltage protector main body 1 is provided with a bolt hole 9, The interior of the heat dissipation port 7 is equipped with a grille 8, and one side of the heat dissipation port 7 is fixedly connected with a dust-proof plate 4, and the surface of the dust-proof plate 4 is provided with a dust-proof filter screen 5 at a position corresponding to the side of the heat dissipation port 7, and The surface of the dustproof plate 4 corresp...
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The invention discloses an overvoltage protector of a current transformer. The overvoltage protector comprises a current transformer overvoltage protector body, wherein a working region is arranged onan upper surface of the current transformer overvoltage protector body, a magnet is fixedly connected to a front surface of the current transformer overvoltage protector body, and a cooling opening is formed in a surface of one side of the current transformer overvoltage protector body. By arranging a protection cover, the current transformer overvoltage protector body can be protected, and a user is convenient to use; by arranging an iron sheet and the magnet, the protection cover and the current transformer overvoltage protector body can be fixedly connected, and the protection cover is conveniently fixed; by arranging a dustproof plate, a positioning bolt and a bolt hole, dustproof processing on the cooling opening can be achieved; and when the dustproof plate is covered with dust, thedust on a dustproof filtering net is conveniently and periodically cleaned, and cleanness of the cooling opening is conveniently ensured.
Description
technical field [0001] The invention relates to the technical field of overvoltage protectors, in particular to a current transformer overvoltage protector. Background technique [0002] Current transformer overvoltage protector, also known as CT overvoltage protector, is mainly used for primary measurement and control in power system. It can be connected to various light alarms or provided to the comprehensive protection device to transmit information remotely. The current transformer overvoltage protector model is divided into 1 to 18 windings. The working principle is: when the protection operates, the normally open closes and the normally closed opens . [0003] In the power system, it is widely used in primary measurement and control. During normal operation, the secondary side of the current transformer is in an approximate short-circuit state, and the output voltage is very low. If the secondary winding is open during operation, or the primary winding flows through a...
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IPC IPC(8): H02H9/04
CPCH02H9/042
Inventor邱峰龚存友
OwnerANHUI SHUORI PHOTOELECTRIC TECH