CN212908990U

CN212908990U - Multifunctional arc light online monitoring system integrated with microcomputer protection function

Info

Publication number: CN212908990U
Application number: CN202021901334.3U
Authority: CN
Inventors: 刘贵华; 严敏; 李杏彬; 魏超; 何杰
Original assignee: Nanjing Zhongkai Electric Technology Co ltd
Current assignee: Nanjing Zhongkai Electric Technology Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-04-06
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses an integrated computer protect function's multi-functional arc light on-line monitoring system, including the cabinet body and cabinet door, the cabinet body and cabinet door are articulated each other, and the back lateral wall fixed mounting of the cabinet body has the assembly plate, and the surface of assembly plate has the card rail through rivet fixed mounting, and the inner wall of the cabinet body and assembly plate all imbeds there is high sensitive light sensor, and traditional computer protect function and arc light protect function can set up as required and drop into. The system can be used as main protection of overhead lines and feeders in a power distribution network, and can also be used as backup protection of equipment such as transformers and the like. Both the protection logic and the related functions are specifically optimized for market needs. The system has both microcomputer protection and arc protection. The complex situation that a microcomputer protection device and an arc light protection device need to be installed in the actual application process in the current market is avoided. The method provides convenience for users, saves cost, has powerful functions and has high market application value.

Description

Multifunctional arc light online monitoring system integrated with microcomputer protection function

Technical Field

The utility model relates to an electricity cabinet protection technical field specifically is an integrated computer protect function's multi-functional arc light on-line monitoring system.

Background

The traditional microcomputer protection device is gradually improved from the aspects of hardware structure and software technology through the development of years, and the functional characteristics and advantages of mature technology, complete variety, high reliability and the like are widely accepted and applied. However, with the continuous development of modern society, the work and life of human beings are seriously dependent on an uninterrupted power supply system, no matter how safe a power system is, faults always occur, the fault removal time of the traditional microcomputer protection is long, and the faults are developed and enlarged, so that huge economic loss and personnel injury are caused; the electric power protection system in the electric cabinet is mainly used for overvoltage and overcurrent protection, and mainly depends on monitoring circuit information to protect equipment in the electric cabinet, so that the response speed is low in the face of the electric combustion speed of the circuit damage in the equipment, the power supply is difficult to cut off in time, and the protection is applied to the equipment in the electric cabinet.

Disclosure of Invention

An object of the utility model is to provide an integrated computer protect function's multi-functional arc light on-line monitoring system to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an integrated computer protect function's multi-functional arc light on-line monitoring system, includes the cabinet body and cabinet door, the cabinet body and cabinet door are articulated each other, and the back lateral wall fixed mounting of the cabinet body has an assembly plate, pilot hole 13 has been seted up to the lateral wall of the cabinet body 1, there is the card rail on the surface of assembly plate through rivet fixed mounting, the inner wall of the cabinet body and assembly plate all imbeds there is high sensitive optical sensor, and the cabinet body and the lateral wall of assembly plate have all been seted up and have been walked the line hole, it has cup jointed the sealed tube to walk in the line hole, fixed mounting.

Preferably, the plug connector includes the sleeve, the sleeve is pegged graft in the mounting hole, and telescopic outside integrated into one piece has outer cardboard, telescopic inside wall integrated into one piece has the jack catch, and the louvre has evenly been seted up to telescopic upper and lower lateral wall.

Preferably, the inner wall of the cabinet body is embedded with a metal strip, the inner wall of the cabinet door is fixedly provided with an electromagnet, and the electromagnet corresponds to the metal strip in position.

Preferably, a sealing strip is embedded in the front side wall of the cabinet body.

Preferably, the inner walls of the cabinet body, the cabinet door and the assembly plate are all pasted with silver films.

Preferably, the sealing tube is filled with insulating pottery clay.

Preferably, the high-sensitivity optical sensor is electrically connected with a central processing unit arranged in the cabinet body through an internal lead.

Preferably, the magnetic nails are embedded into the left side and the right side of the outer surface of the outer clamping plate.

Compared with the prior art, the beneficial effects of the utility model are that: the multifunctional arc light on-line monitoring system with integrated microcomputer protection function combines the advantages of traditional microcomputer protection and novel arc light protection into one and integrates the functions of protection, control, measurement, communication, monitoring and arc light protection into one. The measurement protection control function is complete, and the arc light protection function is integrated. Fills the technical blank in the current market and overcomes the defects of the prior art. Aiming at the single functions of microcomputer protection and arc light protection in the current market, technical fusion and technical innovation are carried out. The traditional microcomputer protection function and the arc light protection function can be set according to the requirement. The system can be used as main protection of overhead lines and feeders in a power distribution network, and can also be used as backup protection of equipment such as transformers and the like. Different protection objects and application occasions such as lines, wire transformers, capacitors, motors and the like can be configured, and protection logic and related functions are particularly optimized according to market demands. The system has both microcomputer protection and arc protection. The complex situation that a microcomputer protection device and an arc light protection device need to be installed in the actual application process in the current market is avoided. The method provides convenience for users, saves cost, has powerful functions and has high market application value.

Drawings

Fig. 1 is a schematic structural view of a cabinet body of the present invention;

FIG. 2 is a schematic view of the disassembled structure of the cabinet body of the present invention;

FIG. 3 is an enlarged view of a portion a of FIG. 1;

FIG. 4 is a schematic view of the connector of the present invention;

fig. 5 is a graph showing the relationship between the arc induction and the feedback of the present invention.

In the figure: 1 cabinet body, 2 cabinet doors, 3 assembly boards, 4 card rails, 5 rivets, 6 wiring holes, 7 sealed tubes, 8 high-sensitive optical sensors, 9 electromagnets, 10 metal strips, 11 sealing strips, 12 silvery films, 13 assembly holes, 14 plug connectors, 15 sleeves, 16 outer clamping plates, 17 claws, 18 magnetic nails and 19 heat dissipation holes.

Detailed Description

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an integrated computer protect function's multi-functional arc light on-line monitoring system, including the cabinet body 1 and cabinet door 2, the cabinet body 1 and cabinet door 2 are articulated each other, and the back lateral wall fixed mounting of the cabinet body 1 has assembly plate 3, pilot hole 13 has been seted up to the lateral wall of the

cabinet body

1, 5 fixed mounting through rivet have card rail 4 on the surface of assembly plate 3, the inner wall of the cabinet body 1 and assembly plate 3 all imbeds there is high-sensitive optical sensor 8, and the cabinet body 1 and the lateral wall of assembly plate 3 have all been seted up and have been walked line hole 6, it has cup jointed sealed tube 7 to walk in line hole 6, fixed mounting has plug.

Particularly, the plug connector 14 comprises a sleeve 15, the sleeve 15 is inserted into the assembling hole 13, an outer clamping plate 16 is integrally formed on the outer side of the sleeve 15, clamping claws 17 are integrally formed on the inner side wall of the sleeve 15, and heat dissipation holes 19 are uniformly formed in the upper side wall and the lower side wall of the sleeve 15. The plug connector 14 is an extension element, functional accessories such as a temperature control alarm, a humidity alarm and the like can be embedded into the sleeve 15, and when the operating environment of the equipment needs functional monitoring, the plug connector 14 with the corresponding function can be selectively installed and connected with the main equipment.

Specifically, a metal strip 10 is embedded in the inner wall of the cabinet body 1, an electromagnet 9 is fixedly mounted on the inner wall of the cabinet door 2, and the electromagnet 9 corresponds to the metal strip 10 in position.

Specifically, the sealing tape 11 is embedded in the front side wall of the cabinet 1.

Specifically, the inner walls of the cabinet body 1, the cabinet door 2 and the assembly plate 3 are all adhered with silver films 12.

Specifically, the sealing tube 7 is filled with insulating clay; the hole gap is sealed to avoid light penetration.

Specifically, the high-sensitivity optical sensor 8 is electrically connected to a central processing unit provided in the cabinet 1 through an internal wire.

Specifically, magnetic nails 18 are embedded in the left side and the right side of the outer surface of the outer clamping plate 16; the outer clamping plate 16 is matched to fix the plug connector 14 on the surface of the side wall of the cabinet body 1 in an absorbing way.

The working principle is as follows: when the utility model discloses when using, electric arc light information is gathered through the high sensitive optical sensor 8 of the internal portion of cabinet to this equipment, feeds back through central processing unit to optical sensor's input signal. The cabinet body 1 is provided with an analog quantity input, a digital quantity input, an electric arc light input, a tripping relay, a control relay, a communication module (an embedded IEC61850 module) and a central processing unit, and the optical fiber temperature measurement, the traditional microcomputer protection function and the electric arc light protection function can be set according to the requirement.

Referring to fig. 5, in the figure:

BB is bus, CB: and the feeder line, the Cable and the Cable are cables.

The arc can be collected by mounting an arc probe near a bus, feeder or cable.

3I: three-phase current

I0: zero sequence current

Analog quantity acquisition module: the three-phase protection voltage, the zero sequence voltage, the three-phase protection current, the three-phase measurement current and the zero sequence current of the incoming line can be collected. The arc light protection device has the measuring functions of three-phase voltage, three-phase current, three-phase active and reactive power, zero sequence current and the like, and provides a current judgment basis for the input of the arc light protection function.

The signal acquisition module: and collecting switching value and arc light signals. The switching value acquisition provides multi-channel remote signaling input, and the resolution ratio is less than 2 ms; arc light signal acquisition, through independent arc light sensor interface, directly with fiber connection, filtering ambient light and visible light, direct detection ultraviolet light, the interference killing feature is stronger

Optical fiber temperature measurement module (optional): the optical fiber temperature measurement utilizes the optical fiber as a temperature signal conducting medium, is effectively and safely isolated from primary equipment, has extremely high insulativity, mechanical reliability and optical characteristics, and is convenient to install. The temperature monitoring of the equipment to be tested can be realized.

The main control unit: the 32-bit ARM microcontroller is used as a main CPU, the working frequency is up to 72MHz, and abundant external interfaces can meet different functional requirements;

a power supply module: and a working power supply is provided for the system, and simultaneously, a working power supply is provided for the work of each module.

A keyboard display module: the measuring quantity, the switching quantity, the arc action condition and the like can be visually seen by adopting the dot matrix type liquid crystal with 128-by-64 patterns. The parameter setting, modification, viewing and the like can be carried out through key pressing. The LED display lamp is used for displaying the states of the device such as operation, fault, alarm, action and the like.

An outlet module: the system outputs signals, when the signals monitored by the system are abnormal, an alarm or action command is sent out, a fault circuit is cut off, the expansion of accidents is avoided, and the time of outlet action is less than 10 ms.

A communication module: three communication modules of 485, Ethernet and IEC61850 are configured, the communication modules are connected with a background according to needs, data can be uploaded to a background monitoring system, and workers can visually see the running condition of the current equipment through the background monitoring system.

Background or supervisor: and uploading the data to a background or management machine through 485 or Ethernet communication.

The system can measure fault current and if the arc light protection option is selected, the device can monitor the entire switchgear through the arc sensor channel. The arc protection system provides a very fast trip to the circuit breaker when an arc fault occurs in the switchgear. The fault can be quickly isolated, and the life of personnel and valuable economic property are saved. The arc light protection is optional in the series current measurement protection device. Conventional protector systems do not provide sufficiently fast protection in the event of arc faults, and station-level fast arc light protection systems are established using the hardware of the protector and a separate arc sensor to integrate arc light protection into the protector hardware. Arc faults occurring in the cable compartment are selectively cleared by the feeder protection device, and can jump into the line breaker when faults occur in the breaker and the bus compartment. The exact position of the arc will be detected by the arc sensor and the protection system.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an online monitoring system of multi-functional arc light of integrated computer protect function, includes the cabinet body (1) and cabinet door (2), its characterized in that: the cabinet body (1) and cabinet door (2) are articulated each other, and the back lateral wall fixed mounting of the cabinet body (1) has assembly plate (3), pilot hole (13) have been seted up to the lateral wall of the cabinet body (1), the surface of assembly plate (3) has card rail (4) through rivet (5) fixed mounting, the inner wall of the cabinet body (1) and assembly plate (3) all imbeds high sensitive optical sensor (8), and the lateral wall of the cabinet body (1) and assembly plate (3) has all been seted up and has been walked line hole (6), it has cup jointed sealed tube (7) in line hole (6), fixed mounting has plug connector (14) in pilot hole (13).

2. The multifunctional arc online monitoring system integrating the microcomputer protection function as claimed in claim 1, wherein: plug connector (14) include sleeve (15), sleeve (15) are pegged graft in pilot hole (13), and the outside integrated into one piece of sleeve (15) has outer cardboard (16), the inside wall integrated into one piece of sleeve (15) has jack catch (17), and louvre (19) have evenly been seted up to the upper and lower lateral wall of sleeve (15).

3. The multifunctional arc online monitoring system integrating the microcomputer protection function as claimed in claim 1, wherein: the inner wall of the cabinet body (1) is embedded with a metal strip (10), the inner wall of the cabinet door (2) is fixedly provided with an electromagnet (9), and the electromagnet (9) corresponds to the metal strip (10).

4. The multifunctional arc online monitoring system integrating the microcomputer protection function as claimed in claim 1, wherein: the front side wall of the cabinet body (1) is embedded with a sealing strip (11).

5. The multifunctional arc online monitoring system integrating the microcomputer protection function as claimed in claim 1, wherein: the inner walls of the cabinet body (1), the cabinet door (2) and the assembly plate (3) are all pasted with silvered films (12).

6. The multifunctional arc online monitoring system integrating the microcomputer protection function as claimed in claim 1, wherein: and the sealing pipe (7) is filled with insulating argil.

7. The multifunctional arc online monitoring system integrating the microcomputer protection function as claimed in claim 1, wherein: the high-sensitivity optical sensor (8) is electrically connected with a central processing unit arranged in the cabinet body (1) through an internal lead.

8. The multifunctional arc online monitoring system integrating the microcomputer protection function as claimed in claim 2, wherein: magnetic nails (18) are embedded into the left side and the right side of the outer surface of the outer clamping plate (16).