CN211320920U - Optical fiber differential protection device suitable for distribution and utilization - Google Patents
Optical fiber differential protection device suitable for distribution and utilization Download PDFInfo
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- CN211320920U CN211320920U CN202020314387.9U CN202020314387U CN211320920U CN 211320920 U CN211320920 U CN 211320920U CN 202020314387 U CN202020314387 U CN 202020314387U CN 211320920 U CN211320920 U CN 211320920U
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Abstract
The utility model provides an optical fiber differential protection device suitable for distribution and utilization, which comprises a housing and a fixed seat, a fan cooling device is arranged at one end of the fixed seat, a differential protection monitor is arranged at the air outlet end of the fan cooling device, one side of the differential protection monitor is provided with a double optical fiber access terminal, the right side of the double optical fiber access terminal is provided with an indicator lamp, and one end of the differential protection monitor, which is far away from the fan cooling device, is provided with a power supply access terminal, and the two sides of the power supply access terminal are respectively provided with a current/voltage analog quantity access terminal and a switching value access terminal, the differential protection monitor is electrically connected with the double optical fiber access terminal, the indicator lamp, the power supply access terminal, the current/voltage analog quantity access terminal and the switching value access terminal through wires respectively. The utility model discloses a quick transmission mode of two optical fibers for fault information in the distribution lines can in time be handled.
Description
Technical Field
The utility model relates to a technical field of differential protection specifically is an optic fibre differential protection device suitable for distribution of power consumption.
Background
The differential protection device has a wide application in distribution and utilization, and usually, when a fault is detected in a distribution line, the differential protection device can trip a circuit breaker of the line to play a role in protection. However, the existing differential protection device has higher and higher requirements on the technical aspect along with the continuous development of the distribution line, especially in the aspect of fault detection, not only needs to achieve rapid protection response, but also is necessary for timely transmission of fault information, and the common differential protection device does not meet the above conditions, so that the development of the distribution technology is limited.
Therefore, it is necessary to design an optical fiber differential protection device suitable for distribution and utilization, which utilizes the characteristic of fast optical fiber transmission to provide better protection for distribution lines.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides an optic fibre differential protection device suitable for distribution and utilization electricity for solve the technical problem who proposes in the above-mentioned background art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
an optical fiber differential protection device suitable for power distribution and utilization, the differential protection device comprises a housing and a fixed seat, the housing and the fixed seat are fixed by screws, the upper surface of the fixed seat is glued with a first fireproof pad, one end of the upper surface of the first fireproof pad is provided with a fan cooling device, both sides of the fan cooling device are connected with fixed sheets, the bottom of each fixed sheet penetrates through the fireproof pad by screws and is connected with the fixed seat, the air outlet end of the fan cooling device is provided with a differential protection monitor, one side of the differential protection monitor is provided with a double optical fiber access terminal, an indicator lamp is arranged on the right side of the double optical fiber access terminal, one end of the differential protection monitor, far away from the fan cooling device, is provided with a power access terminal, and both sides of the power access terminal are respectively provided with a current/voltage analog quantity access terminal and a switching quantity access terminal, the differential protection monitor is electrically connected with the double optical fiber access terminal, the indicator lamp, the power supply access terminal, the current/voltage analog quantity access terminal and the switching value access terminal through wires respectively.
Furthermore, a second fireproof pad is glued on the inner wall of the housing, an opening is formed in the bottom of the housing, and the size of the plane area of the opening is matched with that of one area of the fireproof pad.
Furthermore, a plurality of strip-shaped ventilation openings are formed in the side wall of one end of the housing side by side, and the strip-shaped ventilation openings correspond to the air inlet ends of the fan cooling device.
Furthermore, a grid heat dissipation port is formed in a panel on the top of the housing, and the lower end of the grid heat dissipation port corresponds to the differential protection monitor.
Furthermore, a double-optical-fiber socket is formed in the side wall of one side of the housing, and the double-optical-fiber socket is matched with the double-optical-fiber access terminal.
Furthermore, the cover shell is positioned on the right side of the double-optical-fiber socket and is provided with a round hole, and the round hole is matched with the lamp cap of the indicator lamp.
Furthermore, the side wall of one end, far away from the plurality of strip-shaped ventilation openings, of the cover shell is provided with a first groove, a power supply wiring seat is installed at the bottom in the first groove, and the power supply wiring seat is connected with the power supply access terminal.
Further, the housing is close to be equipped with recess two and recess three on the both sides lateral wall of one end of recess respectively, electric current/voltage monitoring connection terminal and switching value monitoring connection terminal are installed respectively to the interior bottom of recess two and recess three, just electric current/voltage monitoring connection terminal and switching value monitoring connection terminal respectively with electric current/voltage analog quantity access terminal and switching value access terminal are connected.
Compared with the prior art, the beneficial effects of the utility model are that:
firstly, the utility model discloses a differential protection device design has housing and fixing base, set up the differential protection monitor on the fixing base and set up the dual optical fiber access terminal with differential protection monitor assorted, connect the analog quantity monitoring circuit of electric current or voltage on electric current/voltage analog quantity access terminal in the distribution lines, make the differential protection monitor can carry out real-time monitoring, and cooperate switching value access terminal to receive switching value information, and carry out bidirectional transmission with complete monitoring information data in the light transmission line, quick response fault information, in time carry out fault handling;
secondly, the fan cooling device is arranged on the fixed seat, so that the differential protection monitor can be cooled in real time, components in the differential protection monitor are protected from being damaged by high temperature, and the effect of prolonging the service life of the differential protection monitor is achieved;
thirdly, the utility model discloses a differential protection device carries out daily detection at cooperation site work personnel time measuring, has set up the status indicator lamp of differential protection monitor inside the housing, gives the normal operating signal of differential protection monitor, has reduced the step of dismantling the inspection.
The present invention will be explained in detail with reference to the drawings and specific embodiments.
Drawings
Fig. 1 is a schematic view of the external structure of the differential protection device of the present invention;
fig. 2 is a schematic view of the internal structure of the differential protection device of the present invention;
fig. 3 is a bottom view of the housing of the present invention;
fig. 4 is a flowchart illustrating the operation of the differential protection monitor of the present invention.
In the figure: 1. a differential protection device; 11. a housing; 11a, a grid heat dissipation port; 11b, strip-shaped ventilation openings; 11c, double optical fiber sockets; 11d, a round hole; 11g, a first groove; 11e, a second groove; 11f, a third groove; 12. a fixed seat; 13. a first fireproof cushion; 14. a fan cooling device; 14a, a fixing sheet; 15. a differential protection monitor; 16. a dual fiber access terminal; 17. an indicator light; 18. a current/voltage analog access terminal; 19. a power access terminal; 20. a switching value access terminal; 21. a second fireproof cushion; 22. a power supply wire holder; 23. a current/voltage monitoring wire holder; 24. and a switching value monitoring wire holder.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, an optical fiber differential protection device suitable for distribution and utilization of electricity is disclosed, where the differential protection device 1 includes a housing 11 and a fixing seat 12, the housing 11 and the fixing seat 12 are fixed by screws, a first fireproof pad 13 is glued on the upper surface of the fixing seat 12, one end of the upper surface of the first fireproof pad 13 is provided with a fan cooling device 14, two sides of the fan cooling device 14 are connected with fixing pieces 14a, the bottom of each fixing piece 14a penetrates the first fireproof pad 13 by screws and is connected with the fixing seat 12, the air outlet end of the fan cooling device 14 is provided with a differential protection monitor 15, one side of the differential protection monitor 15 is provided with a dual optical fiber access terminal 16, one side wall of the housing 11 is provided with a dual optical fiber socket 11c, and the dual optical fiber socket 11c is matched with the dual optical fiber access terminal 16, be located pilot lamp 17 is installed on double fiber access terminal 16's right side, housing 11 is located round hole 11d has been seted up on double fiber socket 11c right side, round hole 11d with pilot lamp 17 lamp holder is identical, just differential protection monitor 15 keeps away from power access terminal 19 is installed to fan cooling device 14 one end, is located current/voltage analog quantity access terminal 18 and switching value access terminal 20 are installed respectively to power access terminal 19's both sides, differential protection monitor 15 pass through the wire respectively with double fiber access terminal 16, pilot lamp 17, power access terminal 19, current/voltage analog quantity access terminal 18 and switching value access terminal 20 are electric connection. In this embodiment, the differential protection monitor 15 introduces the working power through the power access terminal 19, the voltage rating of the working power is 220V, then bidirectional transmission is performed between the CPU chip inside the differential protection monitor 15 and the dual optical fiber transmission line, the current or voltage analog monitoring unit is used to obtain the circuit information of the distribution line at the current/voltage analog access terminal 18 and the switching value access terminal 20, the analog information is stably received by the low frequency filter element and then converted by the AD conversion circuit unit, and finally transmitted to the CPU chip, and the switching value information is received by the optical coupling isolation element and transmitted to the CPU chip, so that the CPU chip performs fast information processing, so as to respond to the fault in time.
Referring to fig. 2 and 3, a second fire protection pad 21 is glued on the inner wall of the housing 11, and an opening is formed in the bottom of the housing 11, and the size of the plane area of the opening is matched with the size of the first fire protection pad 13. In this embodiment, the first fireproof pad 13 on the fixing base 12 and the fireproof pad 21 on the inner wall of the housing 11 are made of high-temperature flame-retardant cotton, so that when the housing 11 is closed, the external circuit of the installation environment of the differential protection device 1 can be protected from fire.
Referring to fig. 1 and 2, a plurality of strip-shaped ventilation openings 11b are formed in parallel on a side wall of one end of the housing 11, the plurality of strip-shaped ventilation openings 11b correspond to an air inlet end of the fan cooling device 14, a grid heat dissipation opening 11a is formed in a top panel of the housing 11, and a lower end of the grid heat dissipation opening 11a corresponds to the differential protection monitor 15. In the present embodiment, the fan cooling device 14 obtains external air from the plurality of strip-shaped ventilation openings 11b, generates wind flow to blow the differential protection monitor 15, and sends out the heat generated by the operation of the differential protection monitor from the grid heat dissipation openings 11a, so as to form better air circulation and reduce the temperature of the working environment inside the housing 11.
Referring to fig. 1 and 3, a first groove 11g is formed in a side wall of one end of the housing 11, which is far away from the plurality of bar-shaped vents 11b, a power connection base 22 is installed at the bottom of the first groove 11g, the power connection base 22 is connected to the power access terminal 19, a second groove 11e and a third groove 11f are respectively installed on side walls of two sides of one end of the housing 11, which is close to the first groove 11g, a current/voltage monitoring connection base 23 and a switching value monitoring connection base 24 are respectively installed at the inner bottoms of the second groove 11e and the third groove 11f, and the current/voltage monitoring connection base 23 and the switching value monitoring connection base 24 are respectively connected to the current/voltage analog quantity access terminal 18 and the switching value access terminal 20. In this embodiment, the power supply wire holder 22, the current/voltage monitoring wire holder 23 and the switching value monitoring wire holder 24 are arranged in the first groove 11g, the second groove 11e and the third groove 11f, so that the step of opening the housing 11 is reduced during wiring of workers, and the efficiency of line construction is improved.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.
Claims (8)
1. The utility model provides a differential protection device of optic fibre suitable for join in marriage power consumption, a serial communication port, differential protection device (1) is including housing (11) and fixing base (12), housing (11) with fixing base (12) are through the fix with screw, fixing base (12) upper surface is glued has fire prevention to fill up one (13), fire prevention fills up one (13) upper surface one end and is provided with fan cooling device (14), fan cooling device (14) both sides all are connected with stationary blade (14 a), every stationary blade (14 a) bottom all runs through the screw fire prevention fills up one (13) and with fixing base (12) are connected, fan cooling device (14) air-out end installs differential protection monitor (15), two optic fibre access terminal (16) are installed to differential protection monitor (15) one side, lie in indicator lamp (17) are installed to the right side of two optic fibre access terminal (16), and differential protection monitor (15) keep away from fan cooling device (14) one end is installed power access terminal (19), is located current/voltage analog quantity access terminal (18) and switching value access terminal (20) are installed respectively to the both sides of power access terminal (19), differential protection monitor (15) pass through the wire respectively with two optical fiber access terminal (16), pilot lamp (17), power access terminal (19), current/voltage analog quantity access terminal (18) and switching value access terminal (20) are electric connection.
2. The optical fiber differential protection device suitable for distribution and utilization of electricity according to claim 1, wherein a second fireproof pad (21) is glued to the inner wall of the housing (11), and an opening is formed in the bottom of the housing (11), and the size of the plane area of the opening is matched with the size of the first fireproof pad (13).
3. The optical fiber differential protection device suitable for distribution and utilization of electricity according to claim 1, wherein a plurality of strip-shaped ventilation openings (11 b) are formed in a side wall of one end of the housing (11) side by side, and the plurality of strip-shaped ventilation openings (11 b) correspond to the air inlet end of the fan cooling device (14).
4. The fiber optic differential protection device for distribution of electricity of claim 1, wherein a grid heat sink (11 a) is formed on the top panel of the housing (11), and the lower end of the grid heat sink (11 a) corresponds to the differential protection monitor (15).
5. The differential optical fiber protection device suitable for distribution of electricity according to claim 1, wherein a double optical fiber socket (11 c) is formed on a side wall of the housing (11), and the double optical fiber socket (11 c) is matched with the double optical fiber access terminal (16).
6. The optical fiber differential protection device suitable for distribution power of claim 5, wherein the housing (11) is provided with a circular hole (11 d) at the right side of the dual optical fiber socket (11 c), and the circular hole (11 d) is matched with the lamp head of the indicator lamp (17).
7. An optical fiber differential protection device suitable for distribution of electric power according to claim 3, wherein a first groove (11 g) is formed on a side wall of one end of the housing (11) away from the plurality of strip-shaped ventilation openings (11 b), a power connection seat (22) is installed at the inner bottom of the first groove (11 g), and the power connection seat (22) is connected with the power access terminal (19).
8. An optical fiber differential protection device suitable for distribution power according to claim 7, wherein the casing (11) is provided with a second groove (11 e) and a third groove (11 f) on the side walls of both sides near one end of the first groove (11 g), the inner bottoms of the second groove (11 e) and the third groove (11 f) are respectively provided with a current/voltage monitoring connector base (23) and a switching value monitoring connector base (24), and the current/voltage monitoring connector base (23) and the switching value monitoring connector base (24) are respectively connected with the current/voltage analog value access terminal (18) and the switching value access terminal (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020314387.9U CN211320920U (en) | 2020-03-14 | 2020-03-14 | Optical fiber differential protection device suitable for distribution and utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020314387.9U CN211320920U (en) | 2020-03-14 | 2020-03-14 | Optical fiber differential protection device suitable for distribution and utilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211320920U true CN211320920U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020314387.9U Active CN211320920U (en) | 2020-03-14 | 2020-03-14 | Optical fiber differential protection device suitable for distribution and utilization |
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| Country | Link |
|---|---|
| CN (1) | CN211320920U (en) |
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- 2020-03-14 CN CN202020314387.9U patent/CN211320920U/en active Active
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