CN217036835U - Arc light relay protector - Google Patents
Arc light relay protector Download PDFInfo
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- CN217036835U CN217036835U CN202220545706.6U CN202220545706U CN217036835U CN 217036835 U CN217036835 U CN 217036835U CN 202220545706 U CN202220545706 U CN 202220545706U CN 217036835 U CN217036835 U CN 217036835U
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Abstract
The utility model discloses an arc light relay protector, which comprises a shell, wherein an input signal unit, a photoelectric conversion unit, an operational amplifier unit, a filter unit, an AD1 channel unit, an AD2 channel unit, an AD3 channel unit, an AD acquisition unit, a logic judgment unit and an output signal unit are arranged in the shell, the input signal unit is used for receiving arc light in a power grid and quickly capturing optical pulses, the photoelectric conversion unit is used for converting the received arc light into weak voltage signals, the operational amplifier unit is used for amplifying the converted weak voltage signals into a required range through an amplifying circuit, the arc light relay protector transmits acquired light intensity value data to a user in real time through a communication module, and the user can conveniently carry out remote monitoring at the background and check specific arc light values; the protector is provided with three arc light probe module detection channels, so that the switch cabinet equipment can be detected in an all-around manner; and an arc rapid relay is used, so that a fault circuit can be rapidly cut off after the arc is detected.
Description
Technical Field
The utility model relates to the technical field of arc light protectors of power systems, in particular to an arc light relay protector.
Background
Arc light protection is gradually deeply recognized by national power grids and power departments as a new generation of power fault protection mode, and simultaneously, as an effective protection mechanism, the protection strength of arc faults is influenced in one step.
With the discovery and development of new energy, safety requirements for power transmission, power transformation and the like are also promoted. In the protection of a plurality of transformer substations and power supply installations in factories and mines, people consider what way to protect the power transmission and transformation equipment effectively and effectively, so that the equipment can be eliminated in the fault prototype stage, accidents are avoided, and the loss of material wealth is greatly reduced.
Under such an urgent demand, various standards have been developed in the country and in the enterprise to standardize the protection of the power transmission and transformation equipment of the power system. At present, the common arc protection is generally realized by firstly sampling an arc analog quantity and then processing a program, the sampling interval is generally between 250us and 1ms, and because the time of a certain electric ignition light pulse is very short, the pulse cannot be captured exactly by the sampling mode, and the problem of insensitive response exists. In addition, current arc light protection mainly used protection generating line, the access point is many, and the system is also more complicated, when this kind of arc light protection equipment was used for occasions such as switch board, microwave power supply, charging pile, the ubiquitous size is big, with high costs, uses complicated scheduling problem. Although the arc protection industry is developed at home and abroad, the arc protection industry belongs to switch type detection, and the protection devices only have control signal output when the intensity of the arc reaches a preset threshold value, and cannot give the actual light intensity, so the arc protection devices belong to detection protection systems of threshold switches.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to an arc relay protector to solve the above problems.
In order to achieve the purpose, the utility model provides the following technical scheme: an arc relay protector comprises a shell, wherein an input signal unit, a photoelectric conversion unit, an operational amplifier unit, a filter unit, an AD1 channel unit, an AD2 channel unit, an AD3 channel unit, an AD acquisition unit, a logic judgment unit and an output signal unit are arranged in the shell;
the input signal unit is used for receiving arc light in a power grid and can quickly capture light pulses;
the photoelectric conversion unit is used for converting the received arc light into a weak voltage signal;
the operational amplifier unit is used for amplifying the converted weak voltage signal to a required range through an amplifying circuit;
the filtering unit is used for filtering the amplified voltage;
the AD1 channel unit is used for inputting the voltage converted by the signal unit 1;
the AD2 channel unit is used for inputting the voltage converted by the signal unit 2;
the AD3 channel unit is used for inputting the voltage converted by the signal unit 3;
the AD acquisition unit is used for acquiring the voltages of the AD1 channel unit, the AD2 channel unit and the AD3 channel unit, converting the voltages into digital quantities and sending the digital quantities to the single chip microcomputer for data processing;
the logic judgment unit is used for analyzing the acquired data;
the output signal unit is used for outputting real-time detection data of the arc intensity and can rapidly trigger and capture light pulses.
As further preferable in the present technical solution: the input signal unit is connected with the photoelectric conversion unit, the photoelectric conversion unit is connected with the fortune and puts the unit, the fortune is put the unit connection and is had the filtering unit, the filtering unit is connected with AD1 passageway unit, AD2 passageway unit and AD3 passageway unit respectively, AD1 passageway unit, AD2 passageway unit and AD3 passageway unit all are connected with AD acquisition unit, AD acquisition unit is connected with the logic and judges the unit, the logic is judged the unit and is connected with the output signal unit.
As further preferable in the present technical solution: the input signal unit comprises an arc light probe module, a probe fixer and an optical fiber jumper;
the arc light probe module is used for receiving arc light in a power grid;
the probe fixer is used for fixing the arc light probe;
the optical fiber jumper is used for connecting the arc light probe and the photoelectric module and transmitting light.
As a further preferred aspect of the present invention: one side of the shell is connected with one side of three probe fixing devices, one side of each probe fixing device is connected with one side of the optical fiber jumper, and one side of the optical fiber jumper is connected with one side of the arc light probe module.
As a further preferred aspect of the present invention: the output signal unit comprises a power supply, a normally open module, a normally closed module, a communication module, an indicator light and a reset module;
the power supply is used for providing electric energy for the parts;
the normally open module is used for outputting a normally open signal;
the normally closed module is used for outputting a normally closed signal;
the communication module is used for outputting a real-time intensity numerical value of the arc light;
the indicator light is used for indicating the working state of the circuit;
the reset module is used for resetting the circuit.
As further preferable in the present technical solution: the bottom of the shell is integrally formed with a guide rail fastener.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, through the arc light relay protector, the acquired light intensity value data can be sent to a user in real time through the communication module, the user can conveniently carry out remote monitoring in the background, and the specific arc light value can be checked at any time; meanwhile, the arc light relay protector is small in size, simple in structure, low in cost and simple and convenient to operate; the protector is provided with three arc light probe module detection channels, so that the switch cabinet equipment can be detected in all directions, and the numerical value of the actual light intensity can be given at any time; and the arc rapid relay is used for rapidly cutting off a fault circuit after detecting the arc.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram of an input signal unit according to the present invention;
FIG. 3 is a schematic diagram of an output signal unit according to the present invention;
fig. 4 is a schematic view of the appearance structure of the protector of the present invention.
In the figure: 1. a guide rail fastener; 2. a housing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides a technical solution: an arc relay protector comprises a shell 2, wherein an input signal unit, a photoelectric conversion unit, an operational amplifier unit, a filter unit, an AD1 channel unit, an AD2 channel unit, an AD3 channel unit, an AD acquisition unit, a logic judgment unit and an output signal unit are arranged inside the shell 2, the input signal unit is used for receiving arc light in a power grid and capturing optical pulses rapidly, the photoelectric conversion unit is used for converting the received arc light into weak voltage signals, the operational amplifier unit is used for amplifying the converted weak voltage signals into a required range through an amplifying circuit, the filter unit is used for filtering the amplified voltage, the AD1 channel unit is used for inputting the voltage converted by the signal unit 1, the AD2 channel unit is used for inputting the voltage converted by the signal unit 2, and the AD3 channel unit, the AD acquisition unit is used for acquiring the voltages of the AD1 channel unit, the AD2 channel unit and the AD3 channel unit, converting the voltages into digital values and sending the digital values to the singlechip for data processing, the logic judgment unit, for analyzing the collected data, the output signal unit, for outputting real-time detection data of the arc intensity, can rapidly trigger capturing light pulses, the part adopts a mature electric arc light acquisition circuit scheme as an acquisition unit of the system, the unit mainly comprises a photoelectric conversion circuit and an amplifying and filtering circuit, the part adopts a 51 single chip microcomputer as a main control unit of the system, the unit is used as a core component of the system and is responsible for acquisition, calculation and logic judgment of arc light input quantity, various protection logics of the system are realized, and when arc light is detected, a tripping instruction is sent to cut off a fault point.
The output signal unit is used for outputting real-time detection data of the arc light intensity and can rapidly trigger and capture light pulses; the input signal unit is connected with the photoelectric conversion unit, the photoelectric conversion unit is connected with the fortune and puts the unit, the unit connection is put to fortune has the filtering unit, the filtering unit is connected with AD1 passageway unit respectively, AD2 passageway unit and AD3 passageway unit, AD1 passageway unit, AD2 passageway unit and AD3 passageway unit all are connected with AD acquisition unit, AD acquisition unit is connected with the logic and judges the unit, the logic is judged the unit and is connected with the output signal unit, this part has adopted two kinds of output mode: the utility model provides a be relay output, detect the action of direct drive relay behind the arc light, thereby the quick cut-off fault point, another kind is the output of arc light intensity value, send away arc light intensity detection value through communication module in real time, the user can realize carrying out real-time control to arc light intensity change, the output signal unit includes the power, normally open the module, normally closed module, communication module, pilot lamp and reset module, a power for provide the electric power energy for above-mentioned part, normally open the module, a signal is normally opened in the output, normally closed module, a signal is normally closed in the output, a communication module, a real-time strength numerical value for exporting the arc light, the pilot lamp, a circuit operating condition is instructed, reset module, a circuit reset is used for.
Input signal unit the input signal unit includes arc light probe module, probe fixer and optic fibre wire jumper, the arc light probe module for receive the arc light in the electric wire netting, the probe fixer for fixed arc light probe, the optic fibre wire jumper is used for connecting arc light probe and photovoltaic module, and it is used to transmit light, can fix the position surface at needs test with the arc light probe module through the probe fixer, and the arc light probe module uses the ultraviolet probe of filterable visible light, avoids the interference of external natural light.
2 bottom integrated into one piece of shell has guide rail buckle 1, can install this arc light relay protector fast through the guide rail buckle 1 of 2 bottoms of shell.
The working principle is as follows: when the arc light is used, when the specific numerical value of the arc light in the power grid needs to be adjusted, the arc light probe module is firstly connected with the power grid, the arc light probe module receives the arc light in the power grid, the arc light is transmitted to the photoelectric conversion unit through the optical fiber jumper, the arc light is converted into a weak voltage signal, the weak voltage signal is transmitted to the operational amplification unit, the weak amplification circuit is amplified to the required range and is transmitted to the filter unit, the amplified voltage is filtered through the filter unit, the voltage is transmitted to the AD acquisition unit through the AD1 channel unit and is converted into digital quantity, the acquired data is analyzed through the logic judgment unit, the power required by the series of arc light converted into voltage is provided by the power supply, when the arc light is output to normally open information, the normally open module outputs an electric signal, when the arc light outputs normally closed information, by normally closed module output normally closed signal, the staff can observe the pilot lamp, is used for watching whether arc light relay protector work is normal, when arc light relay protector needs to reset, only need press the module that resets, can reset arc light relay protector this moment to through communication module, the numerical value of continuous output arc light intensity, the user can conveniently carry out remote monitoring at the background, looks over specific arc light numerical value, and can install this arc light relay protector fast through the guide rail buckle 1 of 2 bottoms of shell.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An arc light relay protector, its characterized in that: the photoelectric conversion device comprises a shell (2), wherein an input signal unit, a photoelectric conversion unit, an operational amplifier unit, a filter unit, an AD1 channel unit, an AD2 channel unit, an AD3 channel unit, an AD acquisition unit, a logic judgment unit and an output signal unit are arranged in the shell (2);
the input signal unit is used for receiving arc light in a power grid and can quickly capture light pulses;
the photoelectric conversion unit is used for converting the received arc light into a weak voltage signal;
the operational amplifier unit is used for amplifying the converted weak voltage signal to a required range through an amplifying circuit;
the filtering unit is used for filtering the amplified voltage;
the AD1 channel unit is used for inputting the voltage converted by the signal unit 1;
the AD2 channel unit is used for inputting the voltage converted by the signal unit 2;
the AD3 channel unit is used for inputting the voltage converted by the signal unit 3;
the AD acquisition unit is used for acquiring the voltages of the AD1 channel unit, the AD2 channel unit and the AD3 channel unit, converting the voltages into digital quantities and sending the digital quantities to the single chip microcomputer for data processing;
the logic judgment unit is used for analyzing the acquired data;
the output signal unit is used for outputting real-time detection data of the arc intensity and can rapidly trigger and capture light pulses.
2. An arc relay protector according to claim 1, wherein: the utility model discloses a photoelectric conversion unit, including input signal unit, AD3 channel unit, AD1 channel unit, AD2 channel unit and AD3 channel unit, input signal unit is connected with the photoelectric conversion unit, the photoelectric conversion unit is connected with the fortune and puts the unit, the unit connection is put to the fortune has the filtering unit, the filtering unit is connected with AD1 channel unit, AD2 channel unit and AD3 channel unit respectively, AD1 channel unit, AD2 channel unit and AD3 channel unit all are connected with the AD acquisition unit, the AD acquisition unit is connected with the logic and judges the unit, the logic is judged the unit and is connected with the output signal unit.
3. An arc relay protector according to claim 1, wherein: the input signal unit comprises an arc light probe module, a probe fixer and an optical fiber jumper;
the arc light probe module is used for receiving arc light in a power grid;
the probe fixer is used for fixing the arc light probe;
the optical fiber jumper is used for connecting the arc light probe and the photoelectric module and transmitting light.
4. An arc relay protector according to claim 3, wherein: one side of the shell (2) is connected with one side of three probe fixing devices, one side of each probe fixing device is connected with one side of an optical fiber jumper, and one side of the optical fiber jumper is connected with one side of the arc light probe module.
5. An arc relay protector according to claim 1, wherein: the output signal unit comprises a power supply, a normally open module, a normally closed module, a communication module, an indicator light and a reset module;
the power supply is used for providing electric energy for the parts;
the normally open module is used for outputting a normally open signal;
the normally closed module is used for outputting a normally closed signal;
the communication module is used for outputting a real-time intensity numerical value of the arc light;
the indicating lamp is used for indicating the working state of the circuit;
the reset module is used for resetting the circuit.
6. An arc relay protector according to claim 1, wherein: the bottom of the shell (2) is integrally formed with a guide rail buckle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545706.6U CN217036835U (en) | 2022-03-14 | 2022-03-14 | Arc light relay protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545706.6U CN217036835U (en) | 2022-03-14 | 2022-03-14 | Arc light relay protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217036835U true CN217036835U (en) | 2022-07-22 |
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ID=82456333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220545706.6U Active CN217036835U (en) | 2022-03-14 | 2022-03-14 | Arc light relay protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217036835U (en) |
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2022
- 2022-03-14 CN CN202220545706.6U patent/CN217036835U/en active Active
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