CN202026074U - Surge protective device and power-supply system with same - Google Patents
Surge protective device and power-supply system with same Download PDFInfo
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- CN202026074U CN202026074U CN2011201470909U CN201120147090U CN202026074U CN 202026074 U CN202026074 U CN 202026074U CN 2011201470909 U CN2011201470909 U CN 2011201470909U CN 201120147090 U CN201120147090 U CN 201120147090U CN 202026074 U CN202026074 U CN 202026074U
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Abstract
The utility model provides a surge protective device, which comprises a casing and a working circuit which is arranged inside the casing. The working circuit can be spliced on a power line. The surge protective device further comprises a first counter and a second counter which are respectively connected with the power line. The first counter comprises a first counting module, a first current sampling module and a first voltage sampling module which are respectively in electric connection with the first counting module. The second counter comprises a second counting module, a second current sampling module and a second voltage sampling module which are respectively in electric connection with the second counting module. The first counter and the second counter are arranged in the casing. By adopting the technical scheme, filtering performance of the surge protective device can be effectively evaluated.
Description
Technical field
The utility model belongs to power domain, relates in particular to a kind of Surge Protector and has the electric power system of this Surge Protector.
Background technology
Along with human sciences's development of technology, electric power electrical apparatus is to integrated, microelectronics technology and high performance development, and electric power electrical apparatus work just need be switched on to it, thereby will produce voltage and current, in the time of electric power electrical apparatus work, voltage in its internal circuit or electric current may cause that the influence of self or external factor (as thunder and lightning etc.) produces fluctuation, low when high when causing operating voltage or operating current, when voltage increases lasting three nanoseconds (part per billion second) or longer time, be called as surge; When the voltage increase only continues one nanosecond or two nanoseconds, be called as spike.And surge has and is divided into two kinds of inner surge and outside surges, and the infringement that outside surge mainly is meant thunder and lightning and is produced generally is to cause tangible damage to equipment; Inner surge mainly is meant the caused voltage transient of operation, depression, spike, high order harmonic component of distribution, microelectronic device etc., can make the microelectronic component of big extremely number and fault, deadlock, the lost of life even the damage that unknown cause appears in equipment, influence equipment operating efficiency, produce extra power consumption and expenditure extra cost.
In the prior art; general in power circuit the spike surge that Surge Protector can effectively suppress in the power line to be produced is installed; but As time goes on; whether the Surge Protector that can not intuitively draw in the power line still is in operate as normal; perhaps damage; perhaps performance descends greatly, so does not also have the research of correlation technique means in the prior art so that can intuitively assess the filtering performance of Surge Protector.
The utility model content
The utility model is intended to solve the technical problem that can not intuitively assess the Surge Protector filtering performance in the prior art, and a kind of Surge Protector is provided, and can effectively assess its filtering performance by this Surge Protector.
A kind of Surge Protector; described Surge Protector comprises housing and is positioned at the operating circuit of enclosure interior; described operating circuit can be attempted by on the described power line; described Surge Protector also comprises first counter and second counter that is connected with power line respectively; described first counter comprises first counting module; the first current sample module that is electrically connected with described first counting module and the first voltage sample module respectively; described second counter comprises second counting module; the second current sample module that is electrically connected with described second counting module and the second voltage sample module respectively, described first counter and described second counter bit are in described housing.
Preferably, described first counting module comprises first counting unit that has first display screen, described second counting module comprises second counting unit that has second display screen, offer first hole clipping and second hole clipping of holding described display screen on the described housing, described first display location is in described first hole clipping, and described second display location is in described second hole clipping.
Preferably, described first counter also comprises first isolation module, described second counter also comprises second isolation module, the described first current sample module and the first voltage sample module are electrically connected with described first counting module by described first isolation module respectively, and the described second current sample module and the second voltage sample module are electrically connected with described second counting module by described second isolation module respectively.
Preferably, the described first voltage sample module and the second voltage sample module are a plurality of, and the first voltage sample module and the second voltage sample module are respectively voltage sampling circuit or instrument transformer.
Preferably, the described first current sample module and the second current sample module are current sampling circuit or current transformer, and described first isolation module and second isolation module adopt optical coupling isolation circuit.
Preferably, described first counting unit and Unit second are six counting units.
Preferably, described first counting module and second counting module comprise respectively that also one is used for the supply unit to the power supply of the counting unit in it.
The utility model also provides a kind of electric power system, comprises power distribution station, load, and the A phase line, B phase line, C phase line, N line, the PE line that are electrically connected with described load, it is characterized in that described electric power system comprises above-mentioned surge counter, described operating circuit is attempted by on the described power line;
The described first voltage sample module is three, be electrically connected with described A phase line, B phase line and C phase line respectively, the described first current sample module is electrically connected with the PE line, the node of the described first voltage sample module and described A phase line, B phase line and C phase line is between the leading-out terminal of the corresponding node of operating circuit and described A phase line, B phase line and C phase line and power distribution station, and the node of described first current sample module and PE line is between the leading-out terminal of the node of operating circuit and PE line and power distribution station;
The described second voltage sample module is three, be electrically connected with described A phase line, B phase line and C phase line respectively, the described second current sample module is electrically connected with the PE line, the node of the described second voltage sample module and described A phase line, B phase line and C phase line is between the corresponding node and load of operating circuit and described A phase line, B phase line and C phase line, and the node of described second current sample module and PE line is between the node and load of operating circuit and PE line.
The above technical scheme; by two counters are set in described original Surge Protector; first counter is arranged between the leading-out terminal of the node of Surge Protector and power line and power distribution station; be used for counting also spike surge number of times without Surge Protector filtering; second counter is arranged between the node and load of Surge Protector and power line; be used for counting the number of times of the residue spike surge of Surge Protector filtering; difference by twice counting can effectively be carried out the assessment of filtering performance to described Surge Protector; and can learn that whether Surge Protector on the described power line is also in operate as normal; still damage, so that keep in repair or change.
Description of drawings
Fig. 1 is the contour structures schematic diagram of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of first counter among a kind of embodiment of the utility model;
Fig. 3 is the structural representation of second counter among a kind of embodiment of the utility model;
Fig. 4 is the structural representation of a kind of electric power system of the utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
In conjunction with Fig. 1; Fig. 2 and shown in Figure 3; the utility model provides a kind of Surge Protector 1; described Surge Protector 1 comprises housing and is positioned at the operating circuit of enclosure interior; described operating circuit can be attempted by on the described power line; described Surge Protector 1 also comprises first counter and second counter that is connected with power line respectively; described first counter comprises first counting module 11; the first current sample module 13 and the first voltage sample module 12 that is electrically connected with described first counting module 11 respectively; described second counter comprises second counting module 21; the second current sample module 23 and the second voltage sample module 22 that is electrically connected with described second counting module 21 respectively, described first counter and described second counter bit are in described housing.
Preferably, described first counting module 11 comprises first counting unit 112 that has first display screen 113,21 of described second count module comprise second counting unit 212 that has second display screen 213, offer first hole clipping and second hole clipping of holding described display screen on the described housing, as shown in Figure 1, described first display screen 113 is positioned at described first hole clipping, and described second display screen 213 is positioned at described second hole clipping.
Described first counter is used to count the quantity of the spike surge of also not handled by Surge Protector on the power line.Described first counting module 11 is used for the spike surge of being gathered is counted, described first counting module 11 preferably includes first counting unit 112 that has first display screen 113, this counting unit 112 can intuitively reflect the number of the spike surge that is write down, the described counting unit that has first display screen 113 preferably adopts six counting units, be that the full-scale reading that can show on the display screen is 999999, when reaching full-scale reading, when if this counter is proceeded to count, described reading becomes 000000 again, reading 999999 before can be kept at internal system, can obtain current counting by inquiring about its control routine.
The first voltage sample module 12, be used to connect the phase line that to sample, the spike surge that described phase line is met with carries out voltage sample, the described first voltage sample module 12 can be any voltage sampling apparatus of the prior art, and this module preferably adopts voltage sampling circuit or voltage transformer.
The first current sample module 13, be used to connect the ground wire that to sample, the spike surge that described ground wire is met with carries out current sample, the described first current sample module 13 can be any current sampling device of the prior art, and this module preferably adopts current sampling circuit or current transformer.
In conjunction with shown in Figure 2, described first counter preferably also comprises first isolation module 14, and the described first current sample module 13 and the first voltage sample module 12 are electrically connected with described first counting module 11 by described first isolation module 14 respectively.Described first isolation module 14 is used for that the spike surge voltage that the described first voltage sample module 12 and the first current sample module 13 are gathered is carried out filtering and isolates, get rid of the interference of high-voltage signal to described sampled signal, improve the accuracy that is transferred to the signal in first counting module 112 greatly, effectively improve the counting precision of first counter, described first isolation module, the 14 preferred optical coupling isolation circuits that adopt.
Described first counting module 11 also preferably includes first supply unit 111, and described first supply unit 11 can be the device that counter is powered for storage battery or other can be converted into low tension to high-tension electricity.
In like manner, described second counter is used to count the quantity of remaining spike surge after Surge Protector is handled on the power line.Described second counting module 21 is used for the spike surge of being gathered is counted, described second counting module 21 preferably includes second counting unit 212 that has second display screen 213, this counting unit 212 can intuitively reflect the number of the spike surge that is write down, the described counting unit that has second display screen 213 preferably adopts six counting units, be that the full-scale reading that can show on the display screen is 999999, when reaching full-scale reading, when if this counter is proceeded to count, described reading becomes 000000 again, reading 999999 before can be kept at internal system, can obtain current counting by inquiring about its control routine.
The second voltage sample module 22, be used to connect the phase line that to sample, the spike surge that described phase line is met with carries out voltage sample, the described second voltage sample module 22 can be any voltage sampling apparatus of the prior art, and this module preferably adopts voltage sampling circuit or voltage transformer.
The second current sample module 23, be used to connect the ground wire that to sample, the spike surge that described ground wire is met with carries out current sample, the described second current sample module 23 can be any current sampling device of the prior art, and this module preferably adopts current sampling circuit or current transformer.
In conjunction with shown in Figure 2, described second counter preferably also comprises second isolation module 24, and the described second current sample module 23 and the second voltage sample module 22 are electrically connected with described second counting module 21 by described second isolation module 24 respectively.Described second isolation module 24 is used for that the spike surge voltage that the described second voltage sample module 22 and the second current sample module 23 are gathered is carried out filtering and isolates, get rid of the interference of high-voltage signal to described sampled signal, improve the accuracy that is transferred to the signal in second counting module 212 greatly, effectively improve the counting precision of second counter, described second isolation module, the 24 preferred optical coupling isolation circuits that adopt.
Described second counting module 21 also preferably includes second source device 211, and described second source device 21 can be the device that counter is powered for storage battery or other can be converted into low tension to high-tension electricity.
As shown in Figure 4, a kind of have above-described Surge Protector electric power system, described electric power system comprises power distribution station, load, and the A phase line that is electrically connected with described load, the B phase line, the C phase line, N line and PE line, after described mains supply system carries out distribution by power distribution station, again by the A phase line, the B phase line, the C phase line, N line and PE line provide the signal of telecommunication for load, the operating circuit of described Surge Protector is attempted by on the described power line, in the present embodiment because be the three-phase wireless power network, therefore the described first voltage sample module 12 is three, respectively with described A phase line, B phase line and C phase line are electrically connected, the described first current sample module 13 is electrically connected with the PE line, the described first voltage sample module 12 and described A phase line, the node of B phase line and C phase line is positioned at operating circuit and described A phase line, between the corresponding node of B phase line and C phase line and the leading-out terminal of power distribution station, the node of described first current sample module 13 and PE line is between the leading-out terminal of the node of operating circuit and PE line and power distribution station; In other words; the wiring point of the wiring point of the first voltage sample module 12 and phase line and the first current sample module 13 and PE line will be arranged in before the wiring point of the surge restraint circuit of Surge Protector and phase line and PE line in first counter exactly, could guarantee that like this surge quantity that first counter is gathered and counted is the spike surge number of also not handled by surge restraint circuit.
The described second voltage sample module 22 also is three, be electrically connected with described A phase line, B phase line and C phase line respectively, the described second current sample module 23 is electrically connected with the PE line, the node of the described second voltage sample module 22 and described A phase line, B phase line and C phase line is between the corresponding node and load of operating circuit and described A phase line, B phase line and C phase line, and the node of described second current sample module 23 and PE line is between the node and load of operating circuit and PE line.In other words; exactly after the wiring point of the surge restraint circuit that the wiring point of the wiring point of the second voltage sample module 22 and phase line and the second current sample module 23 and PE line will be arranged in Surge Protector in second counter and phase line and PE line, could guarantee that like this surge quantity that second counter is gathered and counted is to have passed through the surge restraint circuit processing but the not processed spike surge number that falls.
By counting with two counters; twice counting carried out subtraction; obtain the difference of twice counting, and the quantity of the spike surge that this difference exactly is exactly a Surge Protector to be disposed, the size of this quantity can intuitively reflect the filtering performance of Surge Protector.
The above technical scheme; by two counters are set in described original Surge Protector; first counter is arranged between the leading-out terminal of the node of Surge Protector and power line and power distribution station; be used for counting also spike surge number of times without Surge Protector filtering; second counter is arranged between the node and load of Surge Protector and power line; be used for counting the number of times of the residue spike surge of Surge Protector filtering; difference by twice counting can effectively be carried out the assessment of filtering performance to described Surge Protector; and can learn that whether Surge Protector on the described power line is also in operate as normal; still damage, so that keep in repair or change.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. Surge Protector; described Surge Protector comprises housing and is positioned at the operating circuit of enclosure interior; described operating circuit can be attempted by on the described power line; it is characterized in that; described Surge Protector also comprises first counter and second counter that is connected with power line respectively; described first counter comprises first counting module; the first current sample module that is electrically connected with described first counting module and the first voltage sample module respectively; described second counter comprises second counting module; the second current sample module that is electrically connected with described second counting module and the second voltage sample module respectively, described first counter and described second counter bit are in described housing.
2. Surge Protector according to claim 1; it is characterized in that; described first counting module comprises first counting unit that has first display screen; described second counting module comprises second counting unit that has second display screen; offer first hole clipping and second hole clipping of holding described display screen on the described housing; described first display location is in described first hole clipping, and described second display location is in described second hole clipping.
3. Surge Protector according to claim 2; it is characterized in that; described first counter also comprises first isolation module; described second counter also comprises second isolation module; the described first current sample module and the first voltage sample module are electrically connected with described first counting module by described first isolation module respectively, and the described second current sample module and the second voltage sample module are electrically connected with described second counting module by described second isolation module respectively.
4. Surge Protector according to claim 3 is characterized in that, the described first voltage sample module and the second voltage sample module are a plurality of, and the first voltage sample module and the second voltage sample module are respectively voltage sampling circuit or instrument transformer.
5. Surge Protector according to claim 3 is characterized in that, the described first current sample module and the second current sample module are current sampling circuit or current transformer, and described first isolation module and second isolation module adopt optical coupling isolation circuit.
6. Surge Protector according to claim 2 is characterized in that, described first counting unit and Unit second are six counting units.
7. surge counter according to claim 1 is characterized in that, described first counting module and second counting module comprise respectively that also one is used for the supply unit to the power supply of the counting unit in it.
8. an electric power system comprises power distribution station, load, and the A phase line, B phase line, the C that are electrically connected with described load believe, N line, PE line, it is characterized in that described electric power system comprises the described surge counter of above-mentioned any claim, described operating circuit is attempted by on the described power line;
The described first voltage sample module is three, be electrically connected with described A phase line, B phase line and C phase line respectively, the described first current sample module is electrically connected with the PE line, the node of the described first voltage sample module and described A phase line, B phase line and C phase line is between the leading-out terminal of the corresponding node of operating circuit and described A phase line, B phase line and C phase line and power distribution station, and the node of described first current sample module and PE line is between the leading-out terminal of the node of operating circuit and PE line and power distribution station;
The described second voltage sample module is three, be electrically connected with described A phase line, B phase line and C phase line respectively, the described second current sample module is electrically connected with the PE line, the node of the described second voltage sample module and described A phase line, B phase line and C phase line is between the corresponding node and load of operating circuit and described A phase line, B phase line and C phase line, and the node of described second current sample module and PE line is between the node and load of operating circuit and PE line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201470909U CN202026074U (en) | 2011-05-09 | 2011-05-09 | Surge protective device and power-supply system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201470909U CN202026074U (en) | 2011-05-09 | 2011-05-09 | Surge protective device and power-supply system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026074U true CN202026074U (en) | 2011-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201470909U Expired - Fee Related CN202026074U (en) | 2011-05-09 | 2011-05-09 | Surge protective device and power-supply system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202026074U (en) |
-
2011
- 2011-05-09 CN CN2011201470909U patent/CN202026074U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20200509 |