CN220271375U - Discharge counter and on-line monitor - Google Patents
Discharge counter and on-line monitor Download PDFInfo
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- CN220271375U CN220271375U CN202321407409.6U CN202321407409U CN220271375U CN 220271375 U CN220271375 U CN 220271375U CN 202321407409 U CN202321407409 U CN 202321407409U CN 220271375 U CN220271375 U CN 220271375U
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- counter
- discharge counter
- display screen
- discharge
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- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000003990 capacitor Substances 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 239000011257 shell material Substances 0.000 description 16
- 230000001681 protective effect Effects 0.000 description 7
- 210000005069 ears Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical group 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model provides a discharge counter and an on-line monitor, comprising: a housing; the first display screen is arranged on the front surface of the shell; the side lugs are respectively and fixedly arranged at two ends of the bottom of the back surface of the shell, and the inside of each side lug is provided with a grounding end; the connecting end is fixedly arranged on the back surface of the shell; a grounding wire is fixedly arranged at one end of the grounding end; the nonlinear resistor, the silicon bridge rectifier, the capacitor and the electromagnetic counter are arranged in the shell; the outer side face of the shell is fixedly provided with a fixing ring, and the inner side face of the fixing ring is fixedly provided with a metal block. According to the discharge counter and the on-line monitor, the structures such as the shell, the first display screen, the side lugs, the grounding end and the connecting end are matched with each other, so that a user can conveniently install and detach the counter when using the discharge counter, residual voltage is small, and the influence on a lightning arrester can be reduced.
Description
Technical Field
The utility model relates to the technical field of arrester discharge counters, in particular to a discharge counter and an online monitor.
Background
The discharge counter is an electrical device which is connected in series under the lightning arrester and is used for recording the action times of the lightning arrester, grasping the lightning activity rule, continuously improving the lightning protection reliability of the power transmission and distribution equipment, monitoring the service life of the lightning arrester and researching the operation condition of the power system under the action of atmospheric overvoltage.
However, when some existing discharge counters are used, disassembly and assembly are complicated, residual voltage is high, and the performance of the lightning arrester is greatly affected.
Therefore, it is necessary to provide a discharge counter and an on-line monitor to solve the above technical problems.
Disclosure of Invention
The utility model provides a discharge counter and an on-line monitor, which solve the problems of complicated installation and disassembly, high residual voltage and large influence on a lightning arrester.
In order to solve the technical problems, the present utility model provides a discharge counter and an on-line monitor, comprising:
a housing;
the first display screen is arranged on the front surface of the shell;
the side lugs are respectively and fixedly arranged at two ends of the bottom of the back surface of the shell, and the inside of each side lug is provided with a grounding end;
the connecting end is fixedly arranged on the back surface of the shell.
Preferably, the connection end is connected with a lightning arrester through an electric wire.
Preferably, one end of the grounding end is fixedly provided with a grounding wire.
Preferably, a nonlinear resistor, a silicon bridge rectifier, a capacitor and an electromagnetic counter are arranged inside the shell.
Preferably, the outer side surface of the shell is fixedly provided with a fixing ring, the inner side surface of the fixing ring is fixedly provided with a metal block, and one side of the metal block is magnetically attracted with a magnet.
Preferably, a protective cover is fixedly arranged on one side of the magnet, and a transparent window is fixedly arranged at one end of the inner side surface of the protective cover.
In order to solve the technical problems, the utility model also provides an online monitor which comprises a second display screen, a third display screen and the discharge counter, wherein the second display screen and the third display screen are arranged on the front surface of the shell, a nonlinear resistor, an electromagnetic counter and a milliamp meter are arranged in the shell, and a solar cell panel is arranged at the top of the shell.
Compared with the related art, the discharge counter and the on-line monitor provided by the utility model have the following beneficial effects:
the utility model provides a discharge counter and an on-line monitor, which are matched with each other through structures such as a shell, a first display screen, side ears, a grounding end, a connecting end and the like, so that a user can conveniently install and detach the counter when the on-line counter is used, and the residual voltage is smaller, thereby reducing the influence on a lightning arrester.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of a discharge counter according to the present utility model;
FIG. 2 is a schematic side view of the housing shown in FIG. 1;
FIG. 3 is a schematic view of the mounting structure shown in FIG. 1;
FIG. 4 is a schematic diagram of a discharge counter according to a first embodiment of the present utility model;
FIG. 5 is a schematic view of the protective cover shown in FIG. 4;
fig. 6 is a schematic structural diagram of an on-line monitor according to the present utility model.
Reference numerals in the drawings: 1. the device comprises a shell, 2, a first display screen, 21, side ears, 22, a grounding end, 23, a connecting end, 3, a grounding wire, 4, a lightning arrester, 5, a second display screen, 51, a third display screen, 6, a fixed ring, 61, a metal block, 62, a protective cover, 63, a magnet, 64 and a transparent window.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1, fig. 2, and fig. 3 in combination, fig. 1 is a schematic structural diagram of a first embodiment of a discharge counter according to the present utility model; FIG. 2 is a schematic side view of the housing shown in FIG. 1; fig. 3 is a schematic view of the mounting structure shown in fig. 1. A discharge counter, comprising: a housing 1;
a first display screen 2, wherein the first display screen 2 is arranged on the front surface of the shell 1;
side ears 22, wherein the side ears 22 are fixedly installed at two ends of the bottom of the back surface of the shell 1 respectively, and a grounding end 22 is arranged inside the side ears 22;
and a connection end 23, wherein the connection end 23 is fixedly arranged on the back surface of the shell 1.
The connection terminal 23 is connected with the lightning arrester 4 through an electric wire.
The connection terminal 23 is a high voltage outgoing terminal.
One end of the grounding end 22 is fixedly provided with a grounding wire 3.
The inside of the housing 1 is provided with a nonlinear resistor, a silicon bridge rectifier, a capacitor and an electromagnetic counter.
The device has light weight, small volume and convenient installation and use; clear and obvious display, light structure, attractive appearance and reliable sealing; the sensitivity is high, accurate and reliable; the through-flow capacity is large, and the applicable voltage class range is wide; the overall residual voltage of the product is low, and the performance of the lightning arrester 4 is little affected; the outer surface adopts an effective anti-corrosion treatment method, so that the corrosion resistance of the product is greatly improved.
The working principle of the discharge counter provided by the utility model is as follows:
the device mainly comprises nonlinear resistor, silicon bridge rectifier, capacitor, electromagnetic counter, etc. The method is that the energy (impulse current and power frequency follow current) passing through the lightning arrester 4 is utilized, the nonlinear resistor is used for taking voltage, the capacitor is charged by a silicon bridge rectifier single phase, and the electromagnetic counter coil is discharged by direct current to make the counter suck once, namely, record once, so as to realize the times of recording actions;
the ground terminal 22 is connected to the ground through the ground wire 3, and the connection terminal 23 is connected to the ground of the lightning arrester 4 through a wire, and the number of the count can be displayed on the first display screen 2.
Compared with the related art, the discharge counter provided by the utility model has the following beneficial effects:
through the mutual cooperation of structures such as shell 1, first display screen 2, side ear 21, earthing terminal 22 and link 23, when using, the person of facilitating the use installs and dismantles the counter to the residual voltage is less, thereby can reduce the influence to arrester 4.
Second embodiment
Referring to fig. 4 and 5 in combination, another discharge counter is proposed according to a second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the second embodiment of the present application provides a discharge counter, which is different in that, in a discharge counter, a fixing ring 6 is fixedly installed on an outer side surface of the housing 1, a metal block 61 is fixedly installed on an inner side surface of the fixing ring 6, and a magnet 63 is magnetically attracted on one side of the metal block 61.
A protective cover 62 is fixedly arranged on one side of the magnet 63, and a transparent window 64 is fixedly arranged at one end of the inner side surface of the protective cover 62.
The working principle of the discharge counter provided by the utility model is as follows:
when the user needs to observe the count displayed on the first display screen 2 during use, the user can directly observe through the transparent window 64, and after the transparent window 64 becomes blurred for a long time, the user can directly take off the protective cover 62 to directly observe.
Compared with the related art, the discharge counter provided by the utility model has the following beneficial effects:
through the cooperation of structures such as retainer plate 6, metal piece 61, protection casing 62, magnet 63, transparent window 64 each other, when using, can play the effect of protecting first display screen 2, avoid causing first display screen 2 to blur, inconvenient user later stage observes.
Referring to fig. 6, the present utility model further provides an on-line monitor, which includes a second display screen 5, a third display screen 51, and a discharge counter as described in any one of the foregoing, where the second display screen 5 and the third display screen 51 are both disposed on the front surface of the housing 1, a nonlinear resistor, an electromagnetic counter, and a milliamp meter are disposed inside the housing 1, and a solar panel is disposed on the top of the housing 1.
The monitor mainly comprises a nonlinear resistor, an electromagnetic counter, a milliammeter, a solar cell panel and some electronic elements, under normal operation voltage, the change of leakage current passing through the lightning arrester 4 and the monitor is measured by the milliammeter in the monitor, when the lightning arrester 4 and the monitor pass lightning, operation or power frequency overvoltage, strong action current is transferred from a leakage current measuring loop to a counter loop, and the milliammeter is protected; the counter part realizes the record of the times of actions by utilizing the energy of the passing lightning, operation or power frequency overvoltage current; the change of leakage current and the action times can be continuously monitored in operation;
the second display 5 and the third display 51 are used for displaying the value of the leaked current and the number of actions.
The monitor and counter are used in the same place as the lightning arrester 4 connected with the monitor and counter, the altitude is not more than 3000M, and the ambient temperature is-40 ℃ to +40 ℃. It is not suitable for the gas with serious corrosion to metal and insulating parts, the region with serious pollution and severe vibration;
the monitor and the counter are clamped and sealed by adopting a transparent heat-resistant glass cover sealing rubber gasket base plate, a flange and the like, and a high-voltage outlet end is led out from the center of the base plate;
the outer shells of the monitor and the counter are made of two materials, namely stainless steel and transparent polycarbonate, so that a user can select the materials according to the use field;
when the monitor and the counter are connected in series between the lightning arrester 4 and the ground, firstly, the monitor and the counter are installed near the base of the lightning arrester 4 by using M10 multiplied by 30 bolts, the ground bus is connected at a position convenient for testing and observation, then the high-voltage outlet end is connected on the installation hole on the base of the lightning arrester by using M10 multiplied by 30 bolts and the bus, and the installed monitor and counter do not have obvious inclination phenomenon; at this time, the number indicated by the counter is recorded down, or the counter is turned to zero, and the operation can be started.
Electrical parameters of the counter:
the rated voltage of the system is 6-110kV r.m.s;
8/20 μS nominal discharge current is 5kA;
the lowest operating current range is 50A;
the nominal current residual voltage is 1.5 kV or less;
2ms 20 times square wave impact current tolerance capability is 400-2000A;
the 4/10 mu S large current 2 times impact current tolerance capacity is 100kA;
a maximum weight of 0.6kG;
the action record range is 0-99 times;
the shell material is stainless steel;
the use sites are indoor and outdoor;
the application object is a metal oxide lightning arrester;
the sampling power supply is a zero-clearance leakage current or a photovoltaic panel.
Electrical parameters of the monitor:
the rated voltage of the system is 10-220kV r.m.s;
8/20 μm nominal discharge current of 5kA;
the lowest operating current range is 50A;
the nominal current residual voltage is 1.5 kV or less;
2ms 20 times square wave impact current tolerance capability is 400-2000A;
the current tolerance capacity of 2 times of impact current of 4/10 mu m s is 100kA;
the voltage of the monitor terminal under the normal leakage current is 250-V r.m.s;
the overload capacity of the power frequency leakage current is 350-400Ma r.m.s;
the current flow milliammeter measuring range is 0-6mA;
a maximum weight of 1.0kG;
the action record range is 999 times;
the shell material is stainless steel;
the use sites are indoor and outdoor;
the application object is a metal oxide lightning arrester or an overvoltage protector;
the sampling power supply is a zero-clearance leakage current or a photovoltaic panel.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. A discharge counter, comprising:
a housing;
the first display screen is arranged on the front surface of the shell;
the side lugs are respectively and fixedly arranged at two ends of the bottom of the back surface of the shell, and the inside of each side lug is provided with a grounding end;
the connecting end is fixedly arranged on the back surface of the shell.
2. A discharge counter according to claim 1, wherein the connection end is connected to a lightning arrester by means of an electric wire.
3. A discharge counter according to claim 1, wherein the ground terminal has a ground wire fixedly mounted at one end thereof.
4. A discharge counter according to claim 1, wherein the housing is internally provided with a nonlinear resistor, a silicon bridge rectifier, a capacitor and an electromagnetic counter.
5. The discharge counter of claim 1, wherein a fixing ring is fixedly arranged on the outer side surface of the outer shell, a metal block is fixedly arranged on the inner side surface of the fixing ring, and a magnet is magnetically attracted on one side of the metal block.
6. The discharge counter of claim 5, wherein a shield is fixedly mounted on one side of the magnet, and a transparent window is fixedly mounted on one end of an inner side of the shield.
7. The on-line monitor is characterized by comprising a second display screen, a third display screen and the discharge counter according to any one of the preceding claims, wherein the second display screen and the third display screen are both arranged on the front surface of the shell, a nonlinear resistor, an electromagnetic counter and a milliamp meter are arranged in the shell, and a solar cell panel is arranged at the top of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321407409.6U CN220271375U (en) | 2023-06-05 | 2023-06-05 | Discharge counter and on-line monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321407409.6U CN220271375U (en) | 2023-06-05 | 2023-06-05 | Discharge counter and on-line monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220271375U true CN220271375U (en) | 2023-12-29 |
Family
ID=89302769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321407409.6U Active CN220271375U (en) | 2023-06-05 | 2023-06-05 | Discharge counter and on-line monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220271375U (en) |
-
2023
- 2023-06-05 CN CN202321407409.6U patent/CN220271375U/en active Active
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