CN110488139A - A kind of substation's electricity consumption leak current fault remote alarming device - Google Patents

A kind of substation's electricity consumption leak current fault remote alarming device Download PDF

Info

Publication number
CN110488139A
CN110488139A CN201910867513.5A CN201910867513A CN110488139A CN 110488139 A CN110488139 A CN 110488139A CN 201910867513 A CN201910867513 A CN 201910867513A CN 110488139 A CN110488139 A CN 110488139A
Authority
CN
China
Prior art keywords
substation
leak current
set casing
electricity consumption
remote alarming
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.)
Pending
Application number
CN201910867513.5A
Other languages
Chinese (zh)
Inventor
郭晨光
李保华
张海霞
刘洋
王新明
陈萌
程远昊
崔爱华
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.)
State Grid Electric Power Co Of Henan Province Xiuwu County Power Supply Co
State Grid Corp of China SGCC
Original Assignee
State Grid Electric Power Co Of Henan Province Xiuwu County Power Supply Co
State Grid Corp of China SGCC
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 State Grid Electric Power Co Of Henan Province Xiuwu County Power Supply Co, State Grid Corp of China SGCC filed Critical State Grid Electric Power Co Of Henan Province Xiuwu County Power Supply Co
Priority to CN201910867513.5A priority Critical patent/CN110488139A/en
Publication of CN110488139A publication Critical patent/CN110488139A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/185Electrical failure alarms

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The invention discloses a kind of substation's electricity consumption leak current fault remote alarming devices, including transformer substation body, warning device there are two being symmetrical arranged on the inner wall of the transformer substation body, each warning device includes set casing, cavity is offered in each set casing, current-collector there are two being symmetrically installed in the cavity, it is fixedly connected with inductance jointly between two current-collectors, electromagnetism column there are two being symmetrically fixedly mounted in the cavity, coil is wound on each electromagnetism column, the upper end of each coil passes through connecting line and current-collector is electrically connected, limit plate there are two being symmetrically fixedly connected in the cavity, two opposite sides of the limit plate offer limiting slot.The present invention, before electrician master worker comes, electric leakage equipment has just been powered off, and avoids staff accidentally and the accident for injures and deaths of getting an electric shock, and enhances the safety and reliability drop of leak current fault remote alarming device.

Description

A kind of substation's electricity consumption leak current fault remote alarming device
Technical field
The present invention relates to substation's technical fields more particularly to a kind of substation's electricity consumption leak current fault remote alarms to fill It sets.
Background technique
Substation changes the place of voltage.For electrical energy transportation that power plant is issued to farther away place, it is necessary to Voltage increases, and becomes high-voltage electricity, nearby voltage is reduced as needed again to user, the work of this buck/boost comes by substation It completes.The capital equipment of substation is switch and transformer.By scale difference, small is known as electric substation.Substation is greater than Electric substation.The signified usually voltage class of power transformation is in 110kV step-down substation below;Substation includes various voltage class " boosting, decompression " substation, substation is voltage of transformation in electric system, receiving and distribution electric energy, the flow direction for controlling electric power With the electric power facility of adjustment voltage, the grid contact of each step voltage is got up substation in specific environment by its transformer by it In;It is by AC-DC-AC conversion process.As in seabed power transmission cable and remote conveying.Some are become using high-voltage dc transmission Electric form.Direct current transportation overcomes the capacitive reactance of ac transmission to be lost.With energy saving effect, the capital equipment of substation and connection side Formula is different and variant by its function.
Current Intelligent electric leakage automates warning device, however used Intelligent electric leakage automation warning device cannot be into Row automatically powers off, and due to that can only alarm, does not carry out power-off work, before such electrician master worker comes, electric leakage equipment is very It is be easy to cause staff's accidentally accident for injures and deaths of getting an electric shock, however leads to the safety of Intelligent electric leakage automation warning device It is reduced with reliability.
For this purpose, it is proposed that a kind of substation's electricity consumption leak current fault remote alarming device solves the above problems.
Summary of the invention
Warning device is automated based on Intelligent electric leakage existing for background technique, however the automation of used Intelligent electric leakage is reported Alarm device not can be carried out and automatically power off, and due to that can only alarm, not carry out power-off work, such electrician master worker comes it Before, electric leakage equipment easily causes staff's accidentally accident for injures and deaths of getting an electric shock, however leads to Intelligent electric leakage automation report The technical issues of safety and reliability of alarm device reduces, the invention proposes a kind of substation's electricity consumption leak current fault is long-range Warning device.
A kind of substation's electricity consumption leak current fault remote alarming device proposed by the present invention, including transformer substation body, it is described Warning device there are two being symmetrical arranged on the inner wall of transformer substation body, each warning device includes set casing, Mei Gesuo It states and offers cavity in set casing, be symmetrically installed in the cavity there are two current-collector, it is common between two current-collectors It is fixedly connected with inductance, is symmetrically fixedly mounted in the cavity there are two electromagnetism column, wound on each electromagnetism column wired Circle, the upper end of each coil passes through to connect wires to be electrically connected with current-collector, is symmetrically fixedly connected with two in the cavity A limit plate, two opposite sides of the limit plate offer limiting slot, are arranged between two limit plates and are magnetic Conductive plate, the left and right ends of the magnetic conductive plate are respectively symmetrically installed there are two pulley, and each pulley is slidably connected In limiting slot, the lower end of the magnetic conductive plate is symmetrically fixedly connected there are two conduction panel, the lower end of each conduction panel Run through the side wall of set casing and is slidably connected in the side wall of set casing.
Preferably, multiple power distribution cabinets, the upper end of multiple power distribution cabinets are installed at equal intervals in the transformer substation body It is fixedly connected with output line jointly, the lower end of multiple power distribution cabinets is fixedly connected with input line jointly, the output line and defeated Enter and be symmetrical arranged respectively at the center of line there are two conducting valve, each conducting valve is corresponding with conduction panel.
Preferably, connecting line is fixedly installed on the side wall of each set casing, each connecting line runs through The side wall of transformer substation body is simultaneously connected with the outside world, and each connecting line is electrically connected with magnetic conductive plate.
Preferably, it is fixedly installed with voltage sensor on the set casing, symmetrically fixes peace on the inner wall of the set casing There are two single-chip microcontroller, each single-chip microcontrollers to be electrically connected with voltage sensor for dress.
Preferably, telescopic cylinder is fixedly installed on the inner wall of the set casing, the telescopic end of the telescopic cylinder is fixed Camera is installed, the telescopic end of the telescopic cylinder can vertically move.
Preferably, heat dissipation frame there are two being symmetrically installed on the left and right sides wall of the transformer substation body, each heat dissipation Cooling fan is fixedly installed in frame.
Preferably, heat dissipation frame there are two being symmetrically fixedly mounted in the left and right sidewall of the transformer substation body, the heat dissipation frame It is inside rotatably connected to cooling fan, is fixedly installed with alarm lamp on the side wall of the transformer substation body.
Preferably, fixed plate is fixedly installed in the cavity, the lower end of the fixed plate is fixedly installed at equal intervals The upper surface of cover magnetic conductive plate is fixedly mounted in multiple springs, the lower end of multiple springs jointly.
1, in the present invention, firstly, being damaged when leak current fault occurs for power distribution cabinet in transformer substation body or other routes Bad when, can cause the electric current for flowing through magnetic conductive plate to change so that the increase sharply of the electric current in magnetic conductive plate or Reduce, and then causes the variation of magnetic field sharply around magnetic conductive plate, so that self induction electromotive force is generated in inductance, so that Inductance both ends form voltage difference, generate electric current, these electric currents can enter current-collector, and by connecting line lead-in wire after over commutation In circle, so that magnetic force can be generated after electromagnetism column is conductive, and then attraction is generated to magnetic conductive plate, so that magnetic conductive plate slides up Dynamic and compressed spring, so that conduction panel leaves conducting valve, so that output line and input line disconnect, by leaking in transformer substation body Electricity, the magnetic field in transformer substation body are in continuous variation, thus in inductance can a kind of generation electromotive force, and then generate electricity Stream enters in two current-collectors, so electromagnetism column is in conduction state always so that electromagnetism column to magnetic conductive plate always With suction-operated, conduction panel is avoided again insertable into conducting valve turning circuit.
2, voltage sensor experiences the variation of inductive drop, and then alarm signal can be passed to single-chip microcontroller, single-chip microcontroller Alarm signal can be passed to the monitoring device of distant place, single-chip microcontroller can control alarm lamp and sound the alarm, and avoid people close to change Power station ontology after the monitoring personnel of distant place receives alarm signal, can control telescopic cylinder by single-chip microcontroller, by telescopic cylinder Camera the equipment in transformer substation body is checked, send someone to repair after searching out fault point, electrician master worker comes it Before, electric leakage equipment has just powered off, and avoids staff accidentally and the accident for injures and deaths of getting an electric shock, it is long-range to enhance leak current fault The safety and reliability of warning device drops.
Detailed description of the invention
Fig. 1 is a kind of plan structure signal of substation's electricity consumption leak current fault remote alarming device proposed by the present invention Figure;
Fig. 2 is set casing front section view in a kind of substation's electricity consumption leak current fault remote alarming device proposed by the present invention;
Fig. 3 is a kind of substation's electricity consumption leak current fault remote alarming device work flow diagram proposed by the present invention.
In figure: 1 heat dissipation frame, 2 cooling fans, 3 cameras, 4 alarm lamps, 5 telescopic cylinders, 6 single-chip microcontrollers, 7 set casings, 8 connect Wiring, 9 output lines, 10 power distribution cabinets, 11 input lines, 12 conduction panels, 13 voltage sensors, 14 conducting valves, 15 pulleys, 16 limits Plate, 17 connect wires, 18 current-collectors, 19 inductance, 20 fixed plates, 21 coils, 22 electromagnetism columns, 23 springs, 24 limiting slots, 25 cavitys, 26 transformer substation bodies, 27 magnetic conductive plates.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
Embodiment
A kind of substation's electricity consumption leak current fault remote alarming device, including transformer substation body 26, in transformer substation body 26 Multiple power distribution cabinets 10 are installed at equal intervals, the upper end of multiple power distribution cabinets 10 is fixedly connected with output line 9, multiple power distribution cabinets jointly 10 lower end is fixedly connected with input line 11 jointly, is symmetrical arranged that there are two lead at the center of output line 9 and input line 11 respectively Port valve 14, each conducting valve 14 is corresponding with conduction panel 12, and voltage sensor 13 experiences the variation of 19 voltage of inductance, in turn Alarm signal can be passed to single-chip microcontroller 6, alarm signal can be passed to the monitoring device of distant place by single-chip microcontroller 6, and single-chip microcontroller 6 can be controlled Alarm lamp 4 processed is sounded the alarm, and avoids people close to transformer substation body 26;
Further, after the monitoring personnel of distant place receives alarm signal, telescopic cylinder 5 can be controlled by single-chip microcontroller 6, by flexible Camera 3 on cylinder 5 checks the equipment in transformer substation body 26, sends someone to repair after searching out fault point, electricity Before Gongshi Fu comes, electric leakage equipment has just been powered off, and avoids staff accidentally and the accident for injures and deaths of getting an electric shock, and enhances leakage The safety and reliability of electric fault remote alarming device drops;
Further, it is symmetrical arranged on the inner wall of transformer substation body 26 there are two warning device, each warning device includes solid Determine shell 7, connecting line 8 is fixedly installed on the side wall of each set casing 7, each connecting line 8 is through transformer substation body 26 Side wall is simultaneously connected with the outside world, and each connecting line 8 is electrically connected with magnetic conductive plate 27, is fixedly installed with electricity on set casing 7 Pressure sensor 13 is symmetrically fixedly mounted on the inner wall of set casing 7 there are two single-chip microcontroller 6, and each single-chip microcontroller 6 is and voltage sensor 13 are electrically connected, and are fixedly installed with telescopic cylinder 5 on the inner wall of set casing 7, the telescopic end of telescopic cylinder 5 is fixedly installed with camera shooting First 3, the telescopic end of telescopic cylinder 5 can vertically move, and alarm lamp 4 is fixedly installed on the side wall of transformer substation body 26, alarm Lamp 4 and single-chip microcontroller 6 are electrically connected, and symmetrically there are two heat dissipation frame 1, heat dissipation frames for fixed installation in the left and right sidewall of transformer substation body 26 It is rotatably connected to cooling fan 2 in 1, is symmetrically installed on the left and right sides wall of transformer substation body 26 there are two heat dissipation frame 1, each Cooling fan 2 is fixedly installed in heat dissipation frame 1;
Further, cavity 25 is offered in each set casing 7, fixed plate 20, fixed plate 20 is fixedly installed in cavity 25 Lower end be fixedly installed with multiple springs 23 at equal intervals, cover magnetic conductive plate 27 is fixedly mounted in the lower end of multiple springs 23 jointly Upper surface, be symmetrically installed in cavity 25 there are two current-collector 18, be fixedly connected with inductance 19 jointly between two current-collectors 18, It is symmetrically fixedly mounted in cavity 25 there are two electromagnetism column 22, is wound with coil 21 on each electromagnetism column 22, each coil 21 Upper end 17 is electrically connected by connecting wires with current-collector 18, is symmetrically fixedly connected in cavity 25 there are two limit plate 16, two The opposite side of limit plate 16 offers limiting slot 24;
Further, be provided with magnetic conductive plate 27 between two limit plates 16, when power distribution cabinet 10 in transformer substation body 26 or When other routes generation leak current faults are damaged, the electric current for flowing through magnetic conductive plate 27 can be caused to change, so that magnetic The increase or reduction of electric current sharply in property conductive plate 27, and then cause the change of magnetic field sharply around magnetic conductive plate 27 Change, so that generating self induction electromotive force in inductance 19, so that 19 both ends of inductance form voltage difference, generates electric current, these electric currents Current-collector 18 can be entered, and by connecting wires in 17 importing coils 21 after over commutation, so that can generate after 22 conduction of electromagnetism column Magnetic force, and then attraction is generated to magnetic conductive plate 27, so that 27 upward sliding of magnetic conductive plate and compressed spring 23;
Further, conduction panel 12 leaves conducting valve 14, so that output line 9 and input line 11 disconnect, by transformer substation body Electric leakage in 26, the magnetic field in transformer substation body 26 are in continuous variation, in inductance 19 can a kind of generation electromotive force, into And generate electric current and enter in two current-collectors 18, conduction state is in always with electromagnetism column 22, so that 22 pairs of magnetism of electromagnetism column Conductive plate 27 has suction-operated always, avoids conduction panel 12 again insertable into 14 turning circuit of conducting valve, magnetic conductive plate 27 Left and right ends respectively symmetrically install there are two pulley 15, each pulley 15 is slidably connected in limiting slot 24, magnetic conductive The lower end of plate 27 is symmetrically fixedly connected there are two conduction panel 12, and the side wall of set casing 7 is run through simultaneously in the lower end of each conduction panel 12 It is slidably connected in the side wall of set casing 7.
The present invention, in the present invention, firstly, in the transformer substation body 26 power distribution cabinet 10 or other routes electric leakage occurs therefore When barrier is damaged, the electric current for flowing through magnetic conductive plate 27 can be caused to change, so that the electric current in magnetic conductive plate 27 is anxious Acute increase or reduction, and then cause the variation of magnetic field sharply around magnetic conductive plate 27, so that being produced in inductance 19 It is born from induction electromotive force, so that 19 both ends of inductance form voltage difference, generates electric current, these electric currents can enter current-collector 18, and pass through By connecting wires in 17 importing coils 21 after rectification, so that magnetic force can be generated after 22 conduction of electromagnetism column, and then to magnetic conductive plate 27 generate attraction, so that 27 upward sliding of magnetic conductive plate and compressed spring 23, so that conduction panel 12 leaves conducting valve 14, in turn So that output line 9 and input line 11 disconnect, by leaking electricity in transformer substation body 26, the magnetic field in transformer substation body 26 is in continuous In variation, with a kind of generation electromotive force of meeting in inductance 19, and then generates electric current and enter in two current-collectors 18, with electromagnetism column 22 Always it is in conduction state, so that electromagnetism column 22 has suction-operated to magnetic conductive plate 27 always, avoids conduction panel 12 Again insertable into 14 turning circuit of conducting valve, voltage sensor 13 experiences the variation of 19 voltage of inductance, and then can be by alarm signal Single-chip microcontroller 6 is passed to, alarm signal can be passed to the monitoring device of distant place by single-chip microcontroller 6, and single-chip microcontroller 6 can control the drawing of alarm lamp 4 Acoustic warning avoids people close to transformer substation body 26, after the monitoring personnel of distant place receives alarm signal, can pass through single-chip microcontroller 6 Telescopic cylinder 5 is controlled, the equipment in transformer substation body 26 is checked by the camera 3 on telescopic cylinder 5, searches out event It sends someone to repair after barrier point, before electrician master worker comes, electric leakage equipment has just been powered off, and then is avoided and generated staff not The carefully probability of the accident for injures and deaths of getting an electric shock enhances the safety and reliability drop of leak current fault remote alarming device.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (8)

1. a kind of substation's electricity consumption leak current fault remote alarming device, including transformer substation body (26), which is characterized in that described Warning device there are two being symmetrical arranged on the inner wall of transformer substation body (26), each warning device includes set casing (7), It offers cavity (25) in each set casing (7), is symmetrically installed in the cavity (25) there are two current-collector (18), two It is fixedly connected with jointly inductance (19) between a current-collector (18), symmetrically there are two electricity for fixed installation in the cavity (25) Magnetic pole (22) is wound with coil (21) on each electromagnetism column (22), and the upper end of each coil (21), which passes through, to be connect Electric wire (17) and current-collector (18) are electrically connected, and are symmetrically fixedly connected in the cavity (25) there are two limit plate (16), two The opposite side of the limit plate (16) offers limiting slot (24), and setting, which is magnetic, between two limit plates (16) leads Battery plate (27), the left and right ends of the magnetic conductive plate (27) are respectively symmetrically installed there are two pulley (15), each pulley (15) it is slidably connected in limiting slot (24), the lower end of the magnetic conductive plate (27) is symmetrically fixedly connected with that there are two conduction panels (12), the lower end of each conduction panel (12) runs through the side wall of set casing (7) and is slidably connected at the side wall of set casing (7) It is interior.
2. a kind of substation's electricity consumption leak current fault remote alarming device according to claim 1, which is characterized in that described It is equipped at equal intervals in transformer substation body (26) multiple power distribution cabinets (10), the upper end of multiple power distribution cabinets (10) is fixed jointly It is connected with output line (9), the lower end of multiple power distribution cabinets (10) is fixedly connected with input line (11), the output line jointly (9) be symmetrical arranged and at the center of input line (11) respectively there are two conducting valve (14), each conducting valve (14) with lead Logical plate (12) are corresponding.
3. a kind of substation's electricity consumption leak current fault remote alarming device according to claim 1, which is characterized in that each It is fixedly installed with connecting line (8) on the side wall of the set casing (7), each connecting line (8) runs through transformer substation body (26) side wall is simultaneously connected with the outside world, and each connecting line (8) is electrically connected with magnetic conductive plate (27).
4. a kind of substation's electricity consumption leak current fault remote alarming device according to claim 1, which is characterized in that described It is fixedly installed on set casing (7) voltage sensor (13), symmetrically there are two single for fixed installation on the inner wall of the set casing (7) Piece machine (6), each single-chip microcontroller (6) are electrically connected with voltage sensor (13).
5. a kind of substation's electricity consumption leak current fault remote alarming device according to claim 1, which is characterized in that described It is fixedly installed on the inner wall of set casing (7) telescopic cylinder (5), the telescopic end of the telescopic cylinder (5) is fixedly installed with camera shooting Head (3), the telescopic end of the telescopic cylinder (5) can vertically move.
6. a kind of substation's electricity consumption leak current fault remote alarming device according to claim 1, which is characterized in that described It is symmetrically installed on the left and right sides wall of transformer substation body (26) there are two heat dissipation frame (1), each heat dissipation frame (1) is interior fixed Cooling fan (2) are installed.
7. a kind of substation's electricity consumption leak current fault remote alarming device according to claim 1, which is characterized in that described It is symmetrically fixedly mounted in the left and right sidewall of transformer substation body (26) there are two heat dissipation frame (1), the interior rotation of the heat dissipation frame (1) connects It is connected to cooling fan (2), is fixedly installed with alarm lamp (4) on the side wall of the transformer substation body (26).
8. a kind of substation's electricity consumption leak current fault remote alarming device according to claim 1, which is characterized in that described It is fixedly installed with fixed plate (20) in cavity (25), the lower end of the fixed plate (20) is fixedly installed with multiple springs at equal intervals (23), the upper surface of cover magnetic conductive plate (27) is fixedly mounted in the lower end of multiple springs (23) jointly.
CN201910867513.5A 2019-09-13 2019-09-13 A kind of substation's electricity consumption leak current fault remote alarming device Pending CN110488139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910867513.5A CN110488139A (en) 2019-09-13 2019-09-13 A kind of substation's electricity consumption leak current fault remote alarming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910867513.5A CN110488139A (en) 2019-09-13 2019-09-13 A kind of substation's electricity consumption leak current fault remote alarming device

Publications (1)

Publication Number Publication Date
CN110488139A true CN110488139A (en) 2019-11-22

Family

ID=68557934

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910867513.5A Pending CN110488139A (en) 2019-09-13 2019-09-13 A kind of substation's electricity consumption leak current fault remote alarming device

Country Status (1)

Country Link
CN (1) CN110488139A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112943667A (en) * 2021-02-08 2021-06-11 林琴眉 Fan automatic maintenance and electric wire aging and leakage detection device for workshop

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201804820U (en) * 2010-08-09 2011-04-20 陈贵 Grounding fault circuit interrupter having end-of-life over-current protection, automatic clip releasing and alarming
CN106405311A (en) * 2016-12-08 2017-02-15 国家电网公司 Remote electric leakage fault alarming device for transformer substation
CN106443111A (en) * 2016-11-22 2017-02-22 徐州工程学院 Remote monitoring and collecting system for electric quantity of building electrical equipment and working method thereof
CN207896645U (en) * 2017-12-12 2018-09-21 北京康吉森节能环保技术有限公司 A kind of electrical reserve protection of small-sized afterheat generating system
CN208094158U (en) * 2018-03-08 2018-11-13 常州石松电力科技有限公司 A kind of intelligent distribution box branch monitoring device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201804820U (en) * 2010-08-09 2011-04-20 陈贵 Grounding fault circuit interrupter having end-of-life over-current protection, automatic clip releasing and alarming
CN106443111A (en) * 2016-11-22 2017-02-22 徐州工程学院 Remote monitoring and collecting system for electric quantity of building electrical equipment and working method thereof
CN106405311A (en) * 2016-12-08 2017-02-15 国家电网公司 Remote electric leakage fault alarming device for transformer substation
CN207896645U (en) * 2017-12-12 2018-09-21 北京康吉森节能环保技术有限公司 A kind of electrical reserve protection of small-sized afterheat generating system
CN208094158U (en) * 2018-03-08 2018-11-13 常州石松电力科技有限公司 A kind of intelligent distribution box branch monitoring device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112943667A (en) * 2021-02-08 2021-06-11 林琴眉 Fan automatic maintenance and electric wire aging and leakage detection device for workshop

Similar Documents

Publication Publication Date Title
CN104466736B (en) Intelligent domestic power distribution device with various electricity protection functions
CN104303389A (en) Charging system and power failure device detecting power failure of LED light
CN110488139A (en) A kind of substation's electricity consumption leak current fault remote alarming device
CN209298901U (en) Inversion boosting device and prefabricated photovoltaic substation
CN104143927A (en) Switch with built-in intelligent terminal power supply and power supply
CN203827068U (en) Power line electronic lock
CN102608399A (en) High-voltage electrified display locking device
CN201717516U (en) Lighting electrical metering cubicle
CN110391077A (en) A kind of burglary-resisting system of distribution transformer
CN110164671A (en) Distribution transformer and its monitoring device
CN215493941U (en) Self-energy-taking wireless partial discharge detection device and system
CN206865145U (en) It is fully compensated to have load turn-adjusting arc-extinguishing winding device
CN211291959U (en) Cubical switchboard mechanical properties intelligent monitoring device based on it is wireless passive
CN207587467U (en) Dry-type transformer case
CN203799488U (en) Household digital intelligent distribution box
CN209001458U (en) A kind of high voltage mid-placed cabinet
CN209593097U (en) A kind of coal mine electric power monitoring system transmission device
CN207398836U (en) 0.4KV power factor optimization devices
CN207053400U (en) Switch power supply equipment and system
CN201966162U (en) Built-in current transformer-type high-voltage alternating-current demarcation circuit breaker
CN202121091U (en) Combined type grounding wire
CN109120066A (en) A kind of coal mine electric power monitoring system transmission device
CN204989297U (en) Wireless high -pressure detection device of sound production formula
CN204989296U (en) High -pressure detection device that reputation formula is wireless
CN204068406U (en) A kind of Waste Heat Power Station direct current system

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20191122