A DC voltage divider
A DC voltage divider, RC voltage divider technology, applied in voltage dividers, measuring current/voltage, instruments, etc., can solve problems such as affecting RC units, poor product operation reliability, and easy bending deformation of insulating sleeves. , to achieve the effect of flexible adjustment and improved versatility
Active Publication Date: 2022-05-13
CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP +2
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Problems solved by technology
[0003] The DC voltage divider in the prior art includes an insulating bushing and a resistance-capacitance voltage dividing part, and the resistance-capacity voltage dividing part includes a plurality of resistance-capacity units connected in series, and the plurality of resistance-capacity units are directly arranged in the insulation sleeve after being connected in series. The disadvantages of the DC voltage divider with this structure during use are: the insulating sleeve is prone to bending deformation due to wind load, and the bending of the sleeve will affect the resistance-capacitance unit. Once the resistance-capacitance unit is connected in series, it will make the product The overall force on the internal sensor device, if the wind swing at the top of the product is large, if in extreme windy weather, the wind swing offset at the top of the product will affect the stability of the internal sensor device, the product's poor operational reliability
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[0024] The present invention will be further described below in conjunction with the accompanying drawings and given embodiments, but is not limited thereto.
[0025] Such as figure 1 , 2 , 3, a DC voltage divider, comprising an insulating bushing 1, a RC voltage divider 2, a high voltage end seal plate 3, a base 4 and a voltage equalizing ring 5, the RC voltage divider 2 is located in the insulating In the bushing 1, the base 4 is arranged at the bottom of the insulating bushing 1, and is fixedly connected with the low-voltage end of the resistance-capacitance voltage dividing part 2, and the high-voltage end sealing plate 3 is arranged at the top of the insulating bushing 1, and is connected with the resistance-capacitance The high-voltage end of the pressure dividing part 2 is fixedly connected, and the pressure equalizing ring 5 is fixedly connected to the high-voltage end sealing plate 3. The resistance-capacity pressure-dividing part 2 includes an epoxy tube 201, a resi...
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The invention relates to a DC voltage divider, which comprises an insulating bushing, a resistance-capacitance dividing part, a high-voltage end sealing plate, a base and a voltage equalizing ring, the resistance-capacitance dividing part is arranged in the insulating bushing, the base and the high-voltage end sealing The plates are respectively arranged at the bottom and top of the insulating bushing, and are connected to both ends of the resistance-capacitance voltage dividing part, and the pressure equalizing ring is connected to the high-voltage end sealing plate. Backing plate and positioning plate, the epoxy tube is arranged in the insulating sleeve, a gap is provided between the outer wall of the epoxy tube and the inner wall of the insulating sleeve, the positioning plate is set at the top opening of the epoxy tube, and the pad The board is connected to the epoxy tube and the resistance-capacitance unit group, and the backing plate is assembled and connected to the base. The resistance-capacitance unit group is composed of a plurality of resistance-capacitance units connected. The invention improves the overall bending strength, reduces the wind swing at the top of the product, and improves the operation reliability of the product.
Description
technical field [0001] The invention specifically relates to a DC voltage divider. Background technique [0002] DC voltage divider is an instrument used in power system and electrical and electronic equipment manufacturing departments to measure power frequency AC high voltage and DC high voltage. Its working principle is to measure the sampling value of the voltage signal by the resistance-capacitance division part of the DC voltage divider, connect the sampling value to the merging unit through the transmission cable or optical cable, and process the sampling value in the merging unit. It is a DC measurement control protection system. important parts of. [0003] The DC voltage divider in the prior art includes an insulating bushing and a resistance-capacitance voltage dividing part. The resistance-capacitance voltage dividing part includes a plurality of resistance-capacity units connected in series, and the plurality of resistance-capacity units are connected in series...
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IPC IPC(8): G01R15/06G01R19/00
CPCG01R15/06G01R19/0084
Inventor 蒋斌吴继平杨洪涛罗苏南须雷张广泰
Owner CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP