CN211426665U - Monitoring meter structure of lightning arrester in valve hall of flexible direct current conversion station - Google Patents
Monitoring meter structure of lightning arrester in valve hall of flexible direct current conversion station Download PDFInfo
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- CN211426665U CN211426665U CN201922085607.5U CN201922085607U CN211426665U CN 211426665 U CN211426665 U CN 211426665U CN 201922085607 U CN201922085607 U CN 201922085607U CN 211426665 U CN211426665 U CN 211426665U
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Abstract
The utility model relates to a monitoring meter structure of flexible direct current converter station valve room arrester, which comprises a base, a casing is arranged on the front side surface of the base, a circuit board is arranged in the casing, an A/D conversion module, a processor, a display driving module and a display panel are arranged on the circuit board, a porcelain bushing is arranged on the upper part of the rear side surface of the base, the porcelain bushing is connected with a conducting rod, a first insulating pad which is sleeved on the conducting rod is arranged on the base in the casing, so that the conducting rod is insulated from the base, a second insulating pad is also arranged on the base, the two insulating pads jointly support the inner conducting rod to be connected to a right contact of a discharge gap, and the two insulating pads and the left contact of the discharge gap; a counting sensor and a lead are arranged beside the internal conducting rod to detect the action times and leakage current of the lightning arrester; the bottom of the rear side face of the base is provided with a fixed grounding hole, and the rear side face of the base is provided with an aviation plug. This monitoring table meter structure not only is favorable to the running state of monitoring arrester in the valve room, simple structure moreover, reasonable in design.
Description
Technical Field
The utility model relates to a power equipment technical field, concretely relates to monitoring table meter structure of gentle direct current converter station valve room arrester.
Background
Metal Oxide Arresters (MOAs) have been widely used in power systems due to their superior protection performance, valve plate and mature quality of manufacturing processes. For the safe operation of an MOA and a power grid, the method adopted for online monitoring of the MOA in the field operation at present is generally to install a common leakage current meter, and for the monitoring mode, the leakage current of a lightning arrester is generally rectified and converted into an average value, then the average value is converted into an effective value according to the corresponding relation between the average value and the effective value of an alternating current signal to be displayed, and the display adopts a local pointer meter head to display. With the development of the on-line monitoring technology, an on-line monitor capable of remotely transmitting signals is available at present, effective value signals displayed in situ are converted into digital signals, the digital signals are transmitted to a background in an RS-485 interface mode, and the digital signals are displayed in the background in a centralized mode. Therefore, there is a need for a monitoring gauge suitable for lightning arresters operating in a flexible system, in particular in a valve hall, to monitor the operating conditions of the lightning arrester.
Disclosure of Invention
An object of the utility model is to provide a monitoring table meter structure of gentle straight current conversion station valve room arrester, this monitoring table meter structure not only is favorable to monitoring the running state of arrester in the valve room, simple structure moreover, reasonable in design.
In order to achieve the above object, the utility model adopts the following technical scheme: a monitoring meter structure of a lightning arrester in a valve hall of a flexible direct current converting station comprises a base (6), a shell (3) is installed on the front side face of the base (6), a circuit board (13) is arranged in the shell (3), an A/D conversion module, a processor, a display driving module (14) and a display panel (15) are arranged on the circuit board (13), a porcelain sleeve (2) is installed on the upper portion of the rear side face of the base (6), the porcelain sleeve (2) is connected with a conducting rod (1), a first insulating pad (8) sleeved on the conducting rod (1) extending into the shell (3) is arranged on the base (6) in the shell (3) so that the conducting rod (1) is insulated from the base (6) through the porcelain sleeve (2) and the first insulating pad (8), an inner conducting rod (16) is arranged in the shell (3), one end of the inner conducting rod (16) is electrically connected with the conducting rod (1), the base (6) is also provided with a second insulating pad (10), the first insulating pad (8) and the second insulating pad (10) jointly support the other end of the internal conducting rod (16) and are connected to a right discharge gap contact, and the right discharge gap contact and a left discharge gap contact arranged on the base (6) form a discharge gap (11) to provide a discharge loop when the lightning arrester acts; a counting sensor (9) is arranged beside the internal conducting rod (16) to detect the action times of the lightning arrester, the counting sensor (9) is connected with the circuit board (13), a lead (17) is arranged beside the internal conducting rod (16) to detect the leakage current of the lightning arrester, and the lead (17) is connected with the circuit board (13); the base (6) trailing flank bottom is equipped with fixed ground connection hole (7), be equipped with aviation plug (4) on base (6) trailing flank, circuit board (13) link to each other with aviation plug (4).
Furthermore, a pressure release explosion-proof cover (12) is arranged in the shell (3) and connected with the base (6) to form a pressure release explosion-proof chamber, and the discharge gap (11) is positioned in the pressure release explosion-proof cover (12).
Furthermore, an explosion-proof hole (5) is formed in the rear side face of the base (6).
Further, the display panel (15) is an LED display screen to display the action times and leakage current of the lightning arrester.
Furthermore, a 485 communication interface is arranged in the aviation plug (4), and the 485 communication interface is connected with a processor on the circuit board (13).
Further, base (6) are die-casting aluminium seat, casing (3) are the stainless steel shell, casing (3) just seted up the display through-hole on the leading flank of display panel (15), be equipped with transparent panel on the display through-hole.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model provides a monitoring table meter structure of gentle straight converter station valve room arrester, this monitoring table meter structure not only is favorable to carrying out state monitoring to the arrester in the gentle straight converter station valve room, reasonable in design moreover, and simple structure, compactness have improved the security of monitoring table meter simultaneously through the design of structures such as decompression explosion-proof lid, explosion-proof hole, have very strong practicality and wide application prospect.
Drawings
Fig. 1 is a schematic diagram of the internal structure of the embodiment of the present invention.
Fig. 2 is a schematic front structural diagram of an embodiment of the present invention.
Fig. 3 is a schematic back structure diagram of an embodiment of the present invention.
In the figure, 1-conducting rod, 2-porcelain bushing, 3-shell, 4-aviation plug, 5-explosion-proof hole, 6-base, 7-fixed grounding hole, 8-first insulating pad, 9-counting sensor, 10-second insulating pad, 11-discharge gap, 12-pressure release explosion-proof cover, 13-circuit board, 14-display driving module, 15-display panel, 16-internal conducting rod, 17-conducting wire.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a gentle monitoring table meter structure of direct current conversion station valve room arrester, as shown in fig. 1, 2, 3, including base 6, install casing 3 on the 6 leading flank of base, be equipped with circuit board 13 in the casing 3, be equipped with AD conversion module, treater, display drive module 14 and display panel 15 on the circuit board 13, 6 trailing flank upper portions of base install the insulator 2, the insulator 2 is connected with conducting rod 1, it locates the first insulation pad 8 on the conducting rod 1 that stretches into in casing 3 to be equipped with the cover on the base 6 in the casing 3 to make conducting rod 1 pass through insulator 2 and first insulation pad 8 and base 6 insulating, be equipped with inside conducting rod 16 in the casing 3, 16 one end of inside conducting rod and 1 electric connection of conducting rod, still be equipped with second insulation pad 10 on the base 6, first insulation pad 8 and second insulation pad 10 support inside conducting rod 16 other end jointly and are connected to the right contact of discharge gap contact of discharge The right contact of the discharge gap and the left contact of the discharge gap arranged on the base 6 form a discharge gap 11 for providing a discharge loop when the lightning arrester operates; a counting sensor 9 is arranged beside the internal conducting rod 16 to detect the action times of the lightning arrester, the counting sensor 9 is connected with the circuit board 13, a lead 17 is arranged beside the internal conducting rod 16 to detect the leakage current of the lightning arrester, and the lead 17 is connected with the circuit board 13; the base 6 trailing flank bottom is equipped with fixed ground connection hole 7, be equipped with aviation plug 4 on the base 6 trailing flank, circuit board 13 links to each other with aviation plug 4.
In the embodiment, a pressure-release explosion-proof cover 12 is arranged in the housing 3 to be connected with the base 6 to form a pressure-release explosion-proof chamber, and the discharge gap 11 is located in the pressure-release explosion-proof cover 12. And the rear side surface of the base 6 is provided with an explosion-proof hole 5.
In this embodiment, the display panel 15 is an LED display screen to display the number of lightning arrester operations and the leakage current. The aviation plug 4 is internally provided with a 485 communication interface, and the 485 communication interface is connected with a processor on the circuit board 13. The A/D conversion module is used for alternating current sampling, and the sampling time is 20 ms. The processor processes the true effective value of the leakage current, obtained by calculation of the fundamental and direct current components.
In this embodiment, the base 6 is a die-casting aluminum seat, the casing 3 is a stainless steel shell, the casing 3 is just provided with a display through hole on the front side surface of the display panel 15, and a transparent panel is arranged on the display through hole.
Above is the utility model discloses a preferred embodiment, all rely on the utility model discloses the change that technical scheme made, produced functional action does not surpass the utility model discloses during technical scheme's scope, all belong to the utility model discloses a protection scope.
Claims (6)
1. The monitoring meter structure of the lightning arrester in the valve hall of the flexible direct current converter station is characterized by comprising a base (6), a shell (3) is installed on the front side face of the base (6), a circuit board (13) is arranged in the shell (3), an A/D conversion module, a processor, a display driving module (14) and a display panel (15) are arranged on the circuit board (13), a porcelain bushing (2) is installed on the upper portion of the rear side face of the base (6), the porcelain bushing (2) is connected with a conducting rod (1), the conducting rod (1) penetrates through the porcelain bushing to enter the base (6), a first insulating pad (8) on the base (6) in the shell (3) is insulated from the base (6) and is connected to an internal conducting rod (16) at the same time, a second insulating pad (10) is further arranged on the base (6), the first insulating pad (8) and the second insulating pad (10) jointly support the internal conducting rod (16), one section of the internal conducting rod (16) is connected with the conducting rod (1), the other end of the internal conducting rod is connected to a right contact of a discharge gap, the right contact of the discharge gap and a left contact of the discharge gap arranged on the base (6) form a discharge gap (11) and provide a discharge loop when the lightning arrester acts; a counting sensor (9) is arranged beside the internal conducting rod (16) to detect the action times of the lightning arrester, the counting sensor (9) is connected with the circuit board (13), a lead (17) is arranged beside the internal conducting rod (16) to detect the leakage current of the lightning arrester, and the lead (17) is connected with the circuit board (13); the base (6) trailing flank bottom is equipped with fixed ground connection hole (7), be equipped with aviation plug (4) on base (6) trailing flank, circuit board (13) link to each other with aviation plug (4).
2. The flexible direct current converter station valve hall lightning arrester monitoring meter structure according to claim 1, characterized in that a pressure relief explosion-proof cover (12) is arranged in the housing (3) to be connected with the base (6) to form a pressure relief explosion-proof chamber, and the discharge gap (11) is positioned in the pressure relief explosion-proof cover (12).
3. The flexible direct current converter station valve hall lightning arrester monitoring meter structure according to claim 1, characterized in that the base (6) is provided with an explosion-proof hole (5) on the rear side.
4. The flexible direct current converter station valve hall lightning arrester monitoring meter structure according to claim 1, characterized in that the display panel (15) is an LED display screen to display the action times and leakage current of the lightning arrester.
5. The flexible direct current converter station valve hall lightning arrester monitoring meter structure according to claim 1, characterized in that a 485 communication interface is arranged in the aviation plug (4), and the 485 communication interface is connected with a processor on a circuit board (13).
6. The flexible direct current converter station valve hall lightning arrester monitoring meter structure according to claim 1, characterized in that the base (6) is a die-cast aluminum base, the housing (3) is a stainless steel shell, a display through hole is opened on a front side of the housing (3) facing the display panel (15), and a transparent panel is arranged on the display through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085607.5U CN211426665U (en) | 2019-11-28 | 2019-11-28 | Monitoring meter structure of lightning arrester in valve hall of flexible direct current conversion station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085607.5U CN211426665U (en) | 2019-11-28 | 2019-11-28 | Monitoring meter structure of lightning arrester in valve hall of flexible direct current conversion station |
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| Publication Number | Publication Date |
|---|---|
| CN211426665U true CN211426665U (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922085607.5U Active CN211426665U (en) | 2019-11-28 | 2019-11-28 | Monitoring meter structure of lightning arrester in valve hall of flexible direct current conversion station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113721A (en) * | 2021-12-03 | 2022-03-01 | 康熹智能科技（东莞）有限公司 | Smart electric meter with electric leakage prompt function |
-
2019
- 2019-11-28 CN CN201922085607.5U patent/CN211426665U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113721A (en) * | 2021-12-03 | 2022-03-01 | 康熹智能科技（东莞）有限公司 | Smart electric meter with electric leakage prompt function |
| CN114113721B (en) * | 2021-12-03 | 2024-03-19 | 江阴众和电力仪表有限公司 | Smart electric meter with electric leakage prompt facility |
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