CN108462074A - A kind of Intelligent low pressure distribution cabinet - Google Patents

A kind of Intelligent low pressure distribution cabinet Download PDF

Info

Publication number
CN108462074A
CN108462074A CN201810407616.9A CN201810407616A CN108462074A CN 108462074 A CN108462074 A CN 108462074A CN 201810407616 A CN201810407616 A CN 201810407616A CN 108462074 A CN108462074 A CN 108462074A
Authority
CN
China
Prior art keywords
line
sequence current
current sensor
distribution box
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810407616.9A
Other languages
Chinese (zh)
Other versions
CN108462074B (en
Inventor
武玉民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Guangdong Guangdong Electric Co Ltd
Original Assignee
Air Guangdong Guangdong Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Air Guangdong Guangdong Electric Co Ltd filed Critical Air Guangdong Guangdong Electric Co Ltd
Priority to CN201810407616.9A priority Critical patent/CN108462074B/en
Publication of CN108462074A publication Critical patent/CN108462074A/en
Application granted granted Critical
Publication of CN108462074B publication Critical patent/CN108462074B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0096Radiation pyrometry, e.g. infrared or optical thermometry for measuring wires, electrical contacts or electronic systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor
    • H02B1/48Mounting of devices therein
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0061Details of emergency protective circuit arrangements concerning transmission of signals
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured

Abstract

The invention discloses a kind of Intelligent low pressure distribution cabinets, including babinet, execution module, control module, information about power detection module, information collection end, line-breaker, line-breaker shunt release and line-breaker auxiliary switch;The execution module is connected with control module and is arranged in babinet;The control module is connected with information collection end using wired or wireless way;The outgoing line side in the low-tension distribution box branched line is arranged in the line-breaker and information about power detection module, the line-breaker is mounted on branched line, the line-breaker shunt release is connected with line-breaker, the information about power detection module is mounted at branched line, and the information about power detection module is mounted on the outgoing line side of line-breaker, the information about power detection module on the branched line is connected with execution module.Low-tension distribution box of the present invention can carry out subordinate's branch line loop works state effective monitoring, and selectivity separating brake powers off when breaking down.

Description

A kind of Intelligent low pressure distribution cabinet
Technical field
The present invention relates to a kind of low-tension distribution boxes, more particularly to a kind of Intelligent low pressure distribution cabinet.
Background technology
Intelligent power distribution equipment domestic at present mainly based on high-tension switch cabinet and low-tension switch cabinet, can to substation, become Electricity in the operating status of for example each switch of each electrical parameter of controller switching equipment, the electrical parameter etc. of circuit be acquired and control, But electric substation's branch road distribution box equipment running status can not be effectively monitored and controlled.Distribution box has multiple branch lines Circuit is powered subordinate's electrical equipment, but works as one of electrical equipment when something goes wrong, and higher level electric substation can not be true Fixed specific branch line loop can only carry out separating brake power-off to the three-phase wire for connecting distribution box, not only influence under distribution box in this way The normal work for belonging to multiple line loops also results in staff and is difficult to find the specific location that failure occurs, gives maintenance mans Bring great inconvenience.Meanwhile power-off time is too long, can seriously affect the normal work of multiple line loops of distribution box subordinate Make, great economic loss can be brought.
Invention content
The present invention provides a kind of Intelligent low pressure distribution cabinets, cannot be right at least to solve low-tension distribution box in the prior art Subordinate's branch line loop carries out the problem of selective separating brake power-off.
The present invention provides a kind of Intelligent low pressure distribution cabinet, the low-tension distribution box includes babinet, execution module, control Module, information about power detection module, information collection end, line-breaker, line-breaker shunt release and line-breaker Auxiliary switch;The execution module is connected with control module and is arranged in babinet;The control module and information collection end are adopted It is connected with wired or wireless way;The line-breaker and information about power detection module are arranged in the low-tension distribution box branch The outgoing line side of circuit, the line-breaker are mounted on branched line, the line-breaker shunt release and line broken circuit Device is connected, and the information about power detection module includes overload protection current sensor and zero sequence current sensor, the electricity Information detecting module is mounted at branched line, and the information about power detection module is mounted on the outgoing line side of line-breaker, Information about power detection module on the branched line is connected with execution module;The line-breaker auxiliary switch, circuit are disconnected Road device shunt release is connected with execution module respectively.
Further, the low-tension distribution box further includes display device, and the display device is connected with control module, described Touch device is additionally provided on babinet, the touch device is connected with display device.
Further, the low-tension distribution box is three-phase and four-line low-tension distribution box, and low-tension distribution box has four lines Wire structure, the zero sequence current sensor include the first zero sequence current sensor, the second zero sequence current sensor, third zero sequence Current sensor, the 4th zero sequence current sensor, first zero sequence current sensor, the second zero sequence current sensor, third Zero sequence current sensor is separately mounted on the three-phase wire of low-tension distribution box, and the 4th zero sequence current sensor is mounted on low It is press-fitted on electronic box four-wire circuit, first zero sequence current sensor, the second zero sequence current sensor, third zero-sequence current sensing Device, the 4th zero sequence current sensor are connected with execution module respectively.
Further, the execution module be additionally provided with the first alarm mechanism, the second alarm mechanism, third alarm mechanism, 4th alarm mechanism, the execution module are connected by the first alarm mechanism with the first zero sequence current sensor, the execution mould Block is connected by the second alarm mechanism with the second zero sequence current sensor, and the execution module passes through third alarm mechanism and third Zero sequence current sensor is connected, and the execution module is connected by the 4th alarm mechanism with the 4th zero sequence current sensor.
Further, Zigbee wireless communication means are equipped in the control module.
Further, the exposed structure without insulated hull, the exposed structure housing are additionally provided on the wire structure It is 0.5-2mm to have heat conductive insulating silica gel sheath, the heat conductive insulating silica gel sheath thickness, and the low-tension distribution box further includes heat-conducting metal Stick, multi way temperature sensor, heat-conducting metal stick one end are connected with heat conductive insulating silica gel, the multi way temperature sensor installation In the other end of heat-conducting metal stick, the multi way temperature sensor is connected with execution module.
Further, the heat-conducting metal stick is T shape metal bars, and the T shapes metal bar is connected with heat conductive insulating silica gel One end be tip, the multi way temperature sensor include thermally expand sensing device, infrared inductor, the heat-conducting metal stick The other end is connected with sensing device is thermally expanded, and the thermal expansion sensing device is swollen including the first fastener, the second fastener, high fever Swollen alloy bar, first fastener, the second fastener are fixed on heat-conducting metal stick one end, the high thermal expansion alloy item Both ends are fixed between the first fastener and the second fastener, and distance is less than between first fastener and the second fastener High thermal expansion alloy length, it is infrared sense to make the high thermal expansion alloy bar shaped camber structure, the infrared inductor Frame is answered, the infrared induction frame, which is mounted on, to be thermally expanded above sensing device, and the arcuate structure court of the high thermal expansion alloy item is made To infrared induction frame.
Further, the high thermal expansion alloy item is additionally provided with organic silicon granule in the side of its arcuate structure direction.
Further, the organic silicon granule surface is additionally provided with black light-absorbing dope layer.
Further, it is additionally provided with infrared emitting module and infrared ray respectively on the opposite frame side of the infrared induction frame Receiving module, the infrared emitting module are made of 5-7 RF transmitter, and the infrared receiver module is by 5-7 Infrared receiver forms.
The present invention first acquires the information about power and line broken circuit of each branched line compared with the existing technology, using execution module The running state information of device uploads to control module by wirelessly or non-wirelessly mode, by control module by above- mentioned information and information Analysis result feed back to information collection end, facilitate staff to carry out effective monitoring, Ke Yicha to the working condition of distribution box The specific operation conditions for using electric line is seen and accurately determined, the distribution line to go wrong is effectively monitored to realize And control.Meanwhile the present invention allows distribution box only to asking by the way that line-breaker and line-breaker shunt release is arranged It inscribes circuit and carries out separating brake power-off, it is ensured that the electricity consumption of other distribution lines is normal, and faulty line is found to which realization is quick, is adopted in time Maintenance measures are taken, conduction time is accelerated and reduce the effect of economic loss.
Description of the drawings
Fig. 1 is distribution box element catenation principle figure of the embodiment of the present invention;
Fig. 2 is the attachment structure schematic diagram of multi way temperature sensor of the embodiment of the present invention;
Fig. 3 is heat-conducting metal stick structural schematic diagram of the embodiment of the present invention;
Fig. 4 is infrared induction mount structure schematic diagram of the embodiment of the present invention;
Fig. 5 is the wire structure schematic diagram of the embodiment of the present invention;
Fig. 6 is infrared induction frame installation condition structural schematic diagram of the embodiment of the present invention.
Specific implementation mode
It in order to enable those skilled in the art to better understand the solution of the present invention, below will be to the skill in the embodiment of the present invention Art scheme is clearly and completely described, it is clear that described embodiment only a part of the embodiments of the present invention, without It is whole embodiment.
The present invention provides a kind of Intelligent low pressure distribution cabinets, as shown in Figure 1, the low-tension distribution box includes babinet 1, holds Row module 2, control module 3, information about power detection module, information collection end 4, line-breaker 9, line-breaker shunted exciter tripping Device 8 and line-breaker auxiliary switch 7;The execution module 2 is connected with control module 3 and is arranged in babinet 1;The control Module 3 is connected with information collection end 4 using wired or wireless way;The line-breaker 9 and information about power detection module 5 Outgoing line side in the low-tension distribution box branched line is set, and the line-breaker 9 is mounted on branched line, and the circuit is disconnected Road device shunt release 8 is connected with line-breaker 9, and the information about power detection module includes overload protection current sense Device 6 and zero sequence current sensor 5, the information about power detection module are mounted at branched line, and the information about power detects Module is mounted on the outgoing line side of line-breaker 9, the information about power detection module on the branched line and 2 phase of execution module Even;The line-breaker auxiliary switch 7, line-breaker shunt release 8 are connected with execution module 2 respectively.
Wherein, as shown in Figure 1, described information collection terminal 4 is monitoring computer host 4, control module 3 is input/output module 3, and there is data gather computer structure, the working status parameter of distribution box can be acquired, and defeated by wired or wireless network It is sent to monitoring computer host 4, to facilitate understanding of the staff to distribution box working status parameter.Execution module 2 and control mould Block 3 is fixed in babinet 1, and the two is connected with each other by RS485 communication interfaces.The setting of the line-breaker 9 is being pacified On branched line equipped with electrical equipment, the load protective current sensor 6, zero sequence current sensor 5 are disconnected set on circuit The outgoing line side of road device 9, and the information about power detection module on the branched line is connected with execution module 2;The line broken circuit Device auxiliary switch 7 and line-breaker shunt release 8 are separately connected to be connected with execution module 2.The execution module 2 is more work( Energy detector 2 is responsible for the circuits information about power such as acquisition line current, circuit zero-sequence current and line voltage distribution, while acquiring circuit The running state informations such as separating brake, combined floodgate or the failure of breaker 9 can be communicated and be executed control module 3 to control module 3 The signal of the disjunction line-breaker 9 sent out.The control module 3 is responsible for the information about power and line that monitoring execution module 2 acquires The running state information of circuit breaker 9, and control module 3 in be equipped with distribution box working status parameter preset value, by with control Set preset value is compared in module 3, to judge whether distribution box working condition is normal, if faulty, sends out order It allows execution module 2 to execute the order of breaker on disjunction faulty line, and fault message and handling result is fed back into monitoring electricity It shows on brain server 4, is alarmed by control host computer 4, and acquire and include fault data.The monitoring computer host 4 is pacified Mounted in monitoring room, staff the real-time operating conditions of distribution box circuit can be observed by monitoring computer host 4 and history is transported Row situation, while can also be instructed to 4 input control of monitoring computer host, disjunction line-breaker 9 is controlled by control module 3 Folding condition.
The zero sequence current sensor 5 is mounted on the outgoing line side of line-breaker 9, is responsible for detection line current and zero sequence electricity Stream, and the line current signal is acquired for execution module 2.The execution module 2 is directly from the outlet of line-breaker 9 Side collection voltages signal.The line-breaker auxiliary switch 7 is directly inputted into execution module 2, for execution module 2 to circuit The running state information of the separating brake of breaker 9, combined floodgate or failure is acquired, and collected signal is sent to by execution module 2 Control module 3, control module 3 are sent to signal on monitoring computer host 4 show again.When execution module 2 gives line-breaker When shunt release 8 is powered, 9 separating brake of line-breaker.The line-breaker 9 is mounted on electrical equipment circuit, is responsible for connecing Logical and disjunction line power, while having the function of overload and short-circuit protection.
When line-breaker 9 closes a floodgate to power supply for electrical equipment, zero sequence current sensor 5 will inspection after having detected line current The current value measured is sent to execution module 2, and the current value of acquisition is sent to control module 3 by execution module 2;Control module 3 The current value of acquisition is handled, on the one hand current value is uploaded on monitoring computer host 4 and is shown, on the other hand by this Current value with before in control module 3 it is preset short circuit and overload current value compare;If it is determined that be short-circuit or overload fault, It then sends out signal to be powered to line-breaker shunt release 8 by execution module 2,9 separating brake of line-breaker, to cut off the event Hinder line power.
When line-breaker 9 closes a floodgate to power supply for electrical equipment, zero sequence current sensor 5 passes collected zero-sequence current value It send to execution module 2, collected zero-sequence current value is sent to control module 3 by execution module 2;Control module 3 by this zero Sequence current value with preset zero-sequence current value compares in control module 3 before;If there is zero-sequence current (electric leakage) failure, It sends out signal to be powered to line-breaker shunt release 8 by execution module 2,9 separating brake of line-breaker, to cut off the failure Line power.
Voltage signal is the three-phase voltage value of the circuit, is sampled from 9 leading-out terminal of line-breaker, is directly inputted into execution mould The voltage value of acquisition is sent to control module 3 by block 2, execution module 2;Control module 3 handles the voltage value of acquisition, and one Aspect is uploaded to the value on monitoring computer host 4 and shows, on the other hand pre- in control module 3 by the voltage value and before If voltage value compare;If it is determined that being overvoltage or under-voltage failure, then signal is sent out by execution module 2 to line-breaker Shunt release 8 is powered, 9 separating brake of line-breaker, to cut off the faulty line power supply.
The embodiment of the present invention first acquires the operation of the information about power and line-breaker of each branched line using execution module 2 Status information uploads to control module 3 by wirelessly or non-wirelessly mode, by control module 3 by the analysis of above- mentioned information and information As a result information collection end 4 is fed back to, staff is facilitated to carry out effective monitoring to the working condition of distribution box, can be checked and accurate The specific operation conditions for using electric line is really determined, the distribution line to go wrong effectively monitor and control to realize System.Meanwhile the embodiment of the present invention allows distribution box only by the way that line-breaker 9 and line-breaker shunt release 8 is arranged To faulty circuit carry out separating brake power-off, it is ensured that the electricity consumption of other distribution lines is normal, to realize quickly find faulty line and When take maintenance measures, accelerate conduction time and reduce economic loss effect.
It should be noted that a monitoring computer host 4 of low-tension distribution box of the embodiment of the present invention can match with multiple low pressure Control module 3 in electronic box body is connected, and forms low-tension distribution box monitoring system, and monitoring computer host 4 acquires control module 3 To low-tension distribution box job information effectively analyzed, when the branch where some low-tension distribution box breaks down, pass through control The low-tension distribution box is made to be powered off to ensure that main line can not be influenced and normal work by branch where the low-tension distribution box Make, and then ensure that the other branches being connected with the main line can still work normally, effectively reduces fault branch to other normal branch The negative effect on road, will minimization of loss caused by due to failure, to reduce economic loss.
Optionally, the low-tension distribution box further includes display device, and the display device is connected with control module 3, described Touch device is additionally provided on babinet 1, the touch device is connected with display device.
Wherein, display device is liquid crystal display, and touch device is capacitance plate, and liquid crystal display is superimposed with capacitance plate, It forms integrated touch-control and shows structure.
The embodiment of the present invention makes low-tension distribution box have touch function, is monitoring by using display device, touch device When host computer 4 breaks down, staff can recall the working condition and operating parameter of low-tension distribution box at the scene.This Outside, the embodiment of the present invention is connected by display device with control module 3 by using touch device, allows touch device to control Molding block 3 carries out direct regulation and control, has sky compared to common physical button using the combination of touch device and display device Between small, the various advantage of operation mode, effectively reduce the complexity of low-tension distribution box volume and structure.
Particularly, as shown in Fig. 2, the low-tension distribution box is three-phase and four-line low-tension distribution box, and low-tension distribution box has The wire structure 10 of four lines, the zero sequence current sensor 5 include the first zero sequence current sensor 51, the second zero-sequence current sensing Device 52, third zero sequence current sensor 53, the 4th zero sequence current sensor 54, first zero sequence current sensor 51, second Zero sequence current sensor 52, third zero sequence current sensor 53 are separately mounted on the three-phase wire of low-tension distribution box, and described Four zero sequence current sensors 54 are mounted on low-tension distribution box four-wire circuit, first zero sequence current sensor the 51, the 2nd 0 Sequence current sensor 52, third zero sequence current sensor 53, the 4th zero sequence current sensor 54 are connected with execution module 2 respectively.
Wherein, as shown in Fig. 2, wire structure 10 is four cable architectures in distribution box, wherein be triple line by three, left side line, First zero sequence current sensor 51, the second zero sequence current sensor 52, third zero sequence current sensor 53 are separately mounted to three-phase At line, the 4th zero sequence current sensor 54 is mounted in four cable architectures of wire structure 10.
When distribution box works, as shown in Fig. 2, the first zero sequence current sensor 51, the second zero sequence current sensor 52, Three zero sequence current sensors 53 detect the respective working condition of triple line respectively, and the 4th zero sequence current sensor 54 is then to four knots Structure plays monitoring.If in the first zero sequence current sensor 51, the second zero sequence current sensor 52, third zero sequence current sensor 53 When one or two zero sequence current sensor detects circuit malfunctions, zero-sequence current is monitored by execution module 2 former Barrier information is acquired and arranges, wire structure hair where control module 3 is tentatively judged as corresponding zero sequence current sensor Raw failure.If the first zero sequence current sensor 51, the second zero sequence current sensor 52, third zero sequence current sensor 53 detect To fault message, then control module 3 is then tentatively judged as that the electrical equipment on circuit breaks down.4th zero-sequence current senses Device 54 effectively monitors four cable architectures of wire structure 10, is passed in the first zero sequence current sensor 51 or the second zero-sequence current When sensor 52 or third zero sequence current sensor 53 break down, fed back from the 4th zero sequence current sensor 54 to execution module 2 Fault message makes the whole separating brakes of 3 control circuit short-circuiting device of control module 9.
The embodiment of the present invention is by using the first zero sequence current sensor 51, the second zero sequence current sensor the 52, the 3rd 0 Sequence current sensor 53 realizes the monitoring respectively in three-phase circuit, control module 3 is allow to collect three-phase circuit working condition Details, and then the first zero sequence current sensor 51, the second zero sequence current sensor the 52, the 3rd 0 when being occurred according to failure The 53 collected actual information of institute of sequence current sensor is effectively analyzed, and the actual cause that preliminary failure judgement causes has Primary manual analysis function.
Particularly, the execution module 2 is additionally provided with the first alarm mechanism, the second alarm mechanism, third alarm mechanism, the 4th Alarm mechanism, the execution module 2 are connected by the first alarm mechanism with the first zero sequence current sensor 51, the execution module 2 are connected by the second alarm mechanism with the second zero sequence current sensor 52, and the execution module 2 passes through third alarm mechanism and Three zero sequence current sensors 53 are connected, and the execution module 2 passes through the 4th alarm mechanism and 54 phase of the 4th zero sequence current sensor Even.
Wherein, buzzing is equipped in the first alarm mechanism, the second alarm mechanism, third alarm mechanism, the 4th alarm mechanism to fill Set, and in the first alarm mechanism, the second alarm mechanism, third alarm mechanism, the 4th alarm mechanism boom unit alarm ringing tone It is different.
The embodiment of the present invention is by being arranged the first alarm mechanism, the second alarm mechanism, third alarm mechanism, the 4th alarming machine Structure makes low-tension distribution box have sound alarm function, can quickly prompt maintenance personal the institute of faulty line low-tension distribution box In position.The difference of ringing tone in addition, the embodiment of the present invention is alarmed by setting, when the display device of low-tension distribution box is impaired, It can also be notified to alarm bell sound difference to prompt the specific faulty line of maintenance personal.
Particularly, Zigbee wireless communication means are equipped in the control module 3.
Particularly, the exposed structure 101 without insulated hull, the exposed structure are additionally provided on the wire structure 10 Heat-conducting insulating silicon gum cover 102 is cased with outside 101,102 thickness of heat conductive insulating silica gel sheath is 0.5-2mm, the low-tension distribution box Further include heat-conducting metal stick 12, multi way temperature sensor, described 12 one end of heat-conducting metal stick is connected with heat conductive insulating silica gel 102, The multi way temperature sensor is mounted on the other end of heat-conducting metal stick 12, the multi way temperature sensor and 2 phase of execution module Even.
Particularly, as shown in figure 3, the heat-conducting metal stick 12 is T shapes metal bar 12, the T shapes metal bar 12 and heat conduction The connected one end of insulation silica gel 102 is tip, and the multi way temperature sensor includes thermally expanding sensing device, infrared inductor 16,12 other end of heat-conducting metal stick is connected with sensing device is thermally expanded, and the thermal expansion sensing device includes the first engaging Part 13, the second fastener 14, high thermal expansion alloy item 15, first fastener 13, the second fastener 14 are fixed on described lead Thermometal stick one end, high 16 both ends of thermal expansion alloy item are fixed between the first fastener 13 and the second fastener 14, and Distance is less than high 15 length of thermal expansion alloy item between first fastener, 13 and second fastener 14, makes the high thermal expansion Alloy bar 15 forms arcuate structure, and the infrared inductor 16 is infrared induction frame 16, and the infrared induction frame 16 is mounted on It thermally expands above sensing device, makes the arcuate structure of the high thermal expansion alloy item 15 towards infrared induction frame 16.
Wherein, as shown in figure 3, high 15 both ends of thermal expansion alloy item pass through the first fastener 13, the second fastener 14 respectively It is closely connect with heat-conducting metal stick 12, infrared induction frame 16 is set to above the arcuate structure of high thermal expansion alloy item 15.And it is red Outer induction frame 16 setting height is high thermal expansion alloy item 15 at 120~170 DEG C, the extreme higher position residing for arcuate structure.
It should be noted that four lines in the wire structure 10 of present invention meaning match one by one with heat-conducting metal stick 12, i.e., Heat-conducting metal stick 12 there are one being set on one electric wire, and just there are one high thermal expansion alloy items for tool on a heat-conducting metal stick 12 15, there are four high 15 structures of thermal expansion alloy item for the tool of wire structure 10.
Directly high thermal expansion alloy strip adoption is simply placed vertically in the prior art, is existed using high thermal expansion alloy item Changing to determine the temperature of high thermal expansion alloy item at this time under different temperatures.But the present invention low-tension distribution box in space compared with It is small, too long of high thermal expansion alloy item can not be placed vertically, and too small high thermal expansion alloy item is placed, at different temperatures Variation it is smaller, can not accurately be monitored.The embodiment of the present invention is by using high thermal expansion alloy item 15 with the first fastener 13, the mode of the second fastener 14 is fixed on the T-type structure of heat-conducting metal stick 12, allow high thermal expansion alloy item 15 along The extending direction of T-type structure is placed, and enables high thermal expansion alloy item 15 that can have compared with long structure, in 15 institute of high thermal expansion alloy item When higher by temperature, length, which has, to be obviously increased, high since size is fixed between the first fastener 13, the second fastener 14 Thermal expansion alloy item 15 can only accommodate its increased length by arc deformation, lead to the arc knot of high thermal expansion alloy item 15 Structure obviously becomes larger, and to allow infrared induction frame 16 effectively to monitor the arcuate structure variation of high thermal expansion alloy item 15, reaches The effect of accurate monitoring 10 temperature of wire structure.
Particularly, the high thermal expansion alloy item 15 is additionally provided with organic silicon granule in the side of its arcuate structure direction.
Wherein, organic silicon granule there are three being set on high thermal expansion alloy item 15, and organic silicon granule is located at arcuate structure most Eminence.
The embodiment of the present invention improves the monitoring accuracy of infrared induction frame 16 by using organic silicon granule, can be in temperature Degree is higher but when not up to overheating, is stopped to a small amount of infrared ray of infrared induction frame 16 using organic silicon granule, makes more work( Energy detector can monitor the variation of 10 operating temperature of wire structure at this time, be reminded in advance staff.
Particularly, the organic silicon granule surface is additionally provided with black light-absorbing dope layer.
Wherein, black light-absorbing dope layer is black Butyronitrile-rubber Coating.
The embodiment of the present invention, in organic silicon granule surface, allows organic silicon granule to have by using black light-absorbing dope layer Effect absorbs infrared ray light, improves interference effect of the organic silicon granule to infrared ray, and then be in infrared sense in organic silicon granule When answering 16 induction zone of frame, the infrared ray on path can effectively be absorbed, it is ensured that the infrared receiver module of corresponding position without Method receives corresponding infrared ray, and infrared induction frame 16 is allow accurately to sense the position of organic silicon granule, improves the The monitoring accuracy of two multi way temperature sensors.
Particularly, it is additionally provided with infrared emitting module respectively on the opposite frame side of the infrared induction frame 16 and infrared ray connects Module is received, the infrared emitting module is made of 5-7 RF transmitter 161, and the infrared receiver module is by 5-7 Infrared receiver 162 forms.
Wherein, as shown in Fig. 4, Fig. 5, Fig. 6, infrared induction frame 16 is made of two 1 groups of opposite frame sides, one group of opposite frame It is respectively equipped with 5 RF transmitters 161 and 5 infrared receivers 162 on side, 5 are respectively equipped on another group of opposite frame side RF transmitter 161` and 5 infrared receiver 162`.Bus structure connection type is as shown in fig. 6, in first busbar knot One end of structure is both provided with high 15 structure of thermal expansion alloy item.As shown in fig. 6, infrared induction frame 16 is set to bus connection structure The top at place, and the infrared monitoring area of infrared induction frame 16 is covered in the high thermal expansion alloy item of each 15.
The embodiment of the present invention can accurately perceive detection by using 16 structure of infrared induction frame, using infrared induction frame 16 The characteristics of area's inner barrier object location, can single bus structure when the temperature is excessively high, it is accurately positioned and is fed back, work is made Personnel can have found specific problem electrical wiring and carry out maintenance overhaul, rather than be entire in inspection low-tension distribution box in time Wire structure 10.
Finally it should be noted that the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent Invention is explained in detail with reference to above-described embodiment for pipe, it should be understood by a person of ordinary skill in the art that technology Personnel can still be modified or replaced equivalently the specific implementation mode of the present invention after reading present specification, but this A little modifications are changed within all without departing from the present patent application accompanying claims protection domain.

Claims (10)

1. a kind of Intelligent low pressure distribution cabinet, which is characterized in that the low-tension distribution box includes babinet, execution module, control mould Block, information about power detection module, information collection end, line-breaker, line-breaker shunt release and line-breaker are auxiliary Help switch;The execution module is connected with control module and is arranged in babinet;The control module and information collection end use Wired or wireless way is connected;The line-breaker and information about power detection module are arranged in the low-tension distribution box branch line The outgoing line side on road, the line-breaker are mounted on branched line, the line-breaker shunt release and line-breaker It is connected, the information about power detection module includes overload protection current sensor and zero sequence current sensor, the electricity letter It ceases detection module to be mounted at branched line, and the information about power detection module is mounted on the outgoing line side of line-breaker, institute The information about power detection module stated on branched line is connected with execution module;The line-breaker auxiliary switch, line broken circuit Device shunt release is connected with execution module respectively.
2. low-tension distribution box according to claim 1, which is characterized in that the low-tension distribution box further includes display device, The display device is connected with control module, and touch device, the touch device and display device phase are additionally provided on the babinet Even.
3. low-tension distribution box according to claim 2, which is characterized in that the low-tension distribution box is that three-phase and four-line low pressure is matched Electronic box, and low-tension distribution box have four lines wire structure, the zero sequence current sensor include the first zero sequence current sensor, Second zero sequence current sensor, third zero sequence current sensor, the 4th zero sequence current sensor, the first zero-sequence current sensing Device, the second zero sequence current sensor, third zero sequence current sensor are separately mounted on the three-phase wire of low-tension distribution box, described 4th zero sequence current sensor is mounted on low-tension distribution box four-wire circuit, first zero sequence current sensor, the second zero sequence Current sensor, third zero sequence current sensor, the 4th zero sequence current sensor are connected with execution module respectively.
4. low-tension distribution box according to claim 3, which is characterized in that the execution module is additionally provided with the first alarming machine Structure, the second alarm mechanism, third alarm mechanism, the 4th alarm mechanism, the execution module pass through the first alarm mechanism and first Zero sequence current sensor is connected, and the execution module is connected by the second alarm mechanism with the second zero sequence current sensor, described Execution module is connected by third alarm mechanism with third zero sequence current sensor, and the execution module passes through the 4th alarm mechanism It is connected with the 4th zero sequence current sensor.
5. low-tension distribution box according to claim 4, which is characterized in that be equipped with Zigbee wireless in the control module and communicate Mechanism.
6. low-tension distribution box according to claim 5, which is characterized in that be additionally provided on the wire structure without insulation The exposed structure of skin, the exposed structure are cased with heat-conducting insulating silicon gum cover outside, and the heat conductive insulating silica gel sheath thickness is 0.5- 2mm, the low-tension distribution box further include heat-conducting metal stick, multi way temperature sensor, and heat-conducting metal stick one end and heat conduction are exhausted Edge silica gel be connected, the multi way temperature sensor be mounted on heat-conducting metal stick the other end, the multi way temperature sensor with hold Row module is connected.
7. low-tension distribution box according to claim 6, which is characterized in that the heat-conducting metal stick is T shape metal bars, described One end that T shapes metal bar is connected with heat conductive insulating silica gel be tip, the multi way temperature sensor include thermally expand sensing device, Infrared inductor, the heat-conducting metal stick other end are connected with sensing device is thermally expanded, and the thermal expansion sensing device includes First fastener, the second fastener, high thermal expansion alloy item, first fastener, the second fastener are fixed on the heat conduction Metal bar one end, the high thermal expansion alloy both ends are fixed between the first fastener and the second fastener, and described first Distance is less than high thermal expansion alloy length between fastener and the second fastener, makes the high thermal expansion alloy bar shaped camber Structure, the infrared inductor are infrared induction frame, and the infrared induction frame, which is mounted on, to be thermally expanded above sensing device, and institute is made The arcuate structure of high thermal expansion alloy item is stated towards infrared induction frame.
8. low-tension distribution box according to claim 7, which is characterized in that the high thermal expansion alloy item is in its arcuate structure The side of direction is additionally provided with organic silicon granule.
9. low-tension distribution box according to claim 8, which is characterized in that the organic silicon granule surface is additionally provided with black suction Optical coating layer.
10. low-tension distribution box according to claim 9, which is characterized in that divide on the opposite frame side of the infrared induction frame It is not additionally provided with infrared emitting module and infrared receiver module, the infrared emitting module is by 5-7 RF transmitter Composition, the infrared receiver module are made of 5-7 infrared receiver.
CN201810407616.9A 2018-05-02 2018-05-02 Intelligent low-voltage distribution box Active CN108462074B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810407616.9A CN108462074B (en) 2018-05-02 2018-05-02 Intelligent low-voltage distribution box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810407616.9A CN108462074B (en) 2018-05-02 2018-05-02 Intelligent low-voltage distribution box

Publications (2)

Publication Number Publication Date
CN108462074A true CN108462074A (en) 2018-08-28
CN108462074B CN108462074B (en) 2020-07-28

Family

ID=63214426

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810407616.9A Active CN108462074B (en) 2018-05-02 2018-05-02 Intelligent low-voltage distribution box

Country Status (1)

Country Link
CN (1) CN108462074B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201654743U (en) * 2010-04-22 2010-11-24 朱亚萍 Non-projection electronic whiteboard
CN102769277A (en) * 2012-05-31 2012-11-07 德清县供电局 Improved structure of safety protection device of low-voltage distribution cabinet
CN204348858U (en) * 2015-01-16 2015-05-20 北京华特时代电动汽车技术有限公司 Battery case internal temperature checkout gear
CN105071249A (en) * 2015-08-21 2015-11-18 珠海市航粤正泰成套电气设备有限公司 Intelligent low voltage power distribution box
CN204885910U (en) * 2015-08-21 2015-12-16 珠海市航粤正泰成套电气设备有限公司 Intelligent low tension distribution box
CN206628336U (en) * 2017-03-17 2017-11-10 东莞市振鑫电子有限公司 It is a kind of short-circuit from alarm SMT Inductor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201654743U (en) * 2010-04-22 2010-11-24 朱亚萍 Non-projection electronic whiteboard
CN102769277A (en) * 2012-05-31 2012-11-07 德清县供电局 Improved structure of safety protection device of low-voltage distribution cabinet
CN204348858U (en) * 2015-01-16 2015-05-20 北京华特时代电动汽车技术有限公司 Battery case internal temperature checkout gear
CN105071249A (en) * 2015-08-21 2015-11-18 珠海市航粤正泰成套电气设备有限公司 Intelligent low voltage power distribution box
CN204885910U (en) * 2015-08-21 2015-12-16 珠海市航粤正泰成套电气设备有限公司 Intelligent low tension distribution box
CN206628336U (en) * 2017-03-17 2017-11-10 东莞市振鑫电子有限公司 It is a kind of short-circuit from alarm SMT Inductor

Also Published As

Publication number Publication date
CN108462074B (en) 2020-07-28

Similar Documents

Publication Publication Date Title
EP2985613B1 (en) Method and system for detecting and locating single-phase ground fault on low current grounded power-distribution network
US10153635B2 (en) System for detecting a falling electric power conductor and related methods
KR101039313B1 (en) A Assembled Power Distriburting Unit Making Possible Monitoring
CN202066606U (en) Intelligent temperature-measuring and current-measuring contact arm for circuit breaker and analysic system thereof
CN101803136A (en) Differential protection method, system and device
KR101885556B1 (en) apparatus for monitoring malfunction of switch gear
KR20130033204A (en) Wireless monitoring system, apparatus and method for bus bar
US20160026159A1 (en) Method of transmitting electrical energy
CN201724969U (en) Intelligent measurement display device of switch cabinet
CN109149484A (en) A kind of intelligent bus plugging box
JP3229238U (en) DC switch box and its monitoring system
CN206271626U (en) Thermomagetic circuit-breaker with real-time detection function
CN206533120U (en) Switch cubicle arc light protecting system and feeder cabinet arc light protecting system
CN108462074A (en) A kind of Intelligent low pressure distribution cabinet
CN210838962U (en) Synchronous intelligent sub-compensation capacitor
CN104377664B (en) Mesolow arc light busbar protective device group
CN207302280U (en) Multifunctional smart electric terminal
CN209657112U (en) A kind of railway computer room comprehensively monitoring protection system
CN205901294U (en) Arc light protecting device
CN205941698U (en) Photovoltaic conflux case direct current system insulation resistance detecting system
CN104678756A (en) Novel intelligent comprehensive power transformation and distribution monitoring system
CN212784758U (en) Cable fire protection system based on temperature detection
CN105071354A (en) Arc light protection monitoring method based on NFC (Near Field Communication)
CN210348268U (en) High tension switchgear management system based on thing networking
CN206041235U (en) Insulating ring network cabinet

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CB02 Change of applicant information
CB02 Change of applicant information

Address after: No.889-203 shop, no.889, Meihua West Road, Xiangzhou District, Zhuhai City, Guangdong Province

Applicant after: Hangyue Intelligent Electric Co., Ltd

Address before: No.889-203 shop, no.889, Meihua West Road, Xiangzhou District, Zhuhai City, Guangdong Province

Applicant before: GUANGDONG HANGYUE ELECTRIC Co.,Ltd.