CN113131366A - Alternating current distribution lightning protection integrated power supply - Google Patents

Alternating current distribution lightning protection integrated power supply Download PDF

Info

Publication number
CN113131366A
CN113131366A CN202110475472.2A CN202110475472A CN113131366A CN 113131366 A CN113131366 A CN 113131366A CN 202110475472 A CN202110475472 A CN 202110475472A CN 113131366 A CN113131366 A CN 113131366A
Authority
CN
China
Prior art keywords
lightning protection
power supply
alternating current
component
integrated power
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
CN202110475472.2A
Other languages
Chinese (zh)
Inventor
杨川林
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.)
Shaoguan Gaoerde Lightning Protection Technology Co ltd
Original Assignee
Shaoguan Gaoerde Lightning Protection Technology 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 Shaoguan Gaoerde Lightning Protection Technology Co ltd filed Critical Shaoguan Gaoerde Lightning Protection Technology Co ltd
Priority to CN202110475472.2A priority Critical patent/CN113131366A/en
Publication of CN113131366A publication Critical patent/CN113131366A/en
Pending legal-status Critical Current

Links

Images

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
    • 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
    • H02B1/015Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • 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
    • H02B1/16Earthing arrangements
    • 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
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/40Connection to earth
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00Installations of lightning conductors; Fastening thereof to supporting structure
    • H02G13/80Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/044Physical layout, materials not provided for elsewhere
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/045Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The invention discloses an alternating current distribution lightning protection integrated power supply, which comprises a box body and a box door, wherein a hinge mechanism is arranged on one side of the box body, the box door is connected with the hinge mechanism, a front panel and a bottom plate are arranged in the box body, the front panel is arranged on the front side of the box body, the bottom plate is arranged on the back side of the front panel, the bottom plate is provided with a lightning protection component, a main brake switch component, a separating brake switch component and a mutual inductor, the lightning protection component is connected with the main brake switch component, the main switch component is connected with the mutual inductor, and the mutual inductor is connected with the separating brake switch component; the lightning protection assembly, the main brake switch assembly, the opening brake switch assembly and the mutual inductor are connected and conducted through copper bars.

Description

Alternating current distribution lightning protection integrated power supply
Technical Field
The invention relates to the technical field of power supply, in particular to an alternating current power distribution lightning protection integrated power supply.
Background
The distribution box in the distribution room is a low-voltage distribution box formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirement. In normal operation, the circuit can be switched on or off by means of a manual or automatic switch. When the fault or abnormal operation occurs, the circuit is cut off or an alarm is given by the aid of the protective electric appliance. The measuring instrument can display various parameters in operation, and can also adjust some electrical parameters to prompt or send out signals for deviation from normal working state. The internal circuit of current block terminal has the tie point many, and the manufacturability of installation, reliability are poor, and can't the lightning protection, consequently have the limitation in aspects such as daily use and maintenance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an alternating current distribution lightning protection integrated power supply, which can improve the defects.
The invention adopts the following technical scheme:
an alternating current distribution lightning protection integrated power supply comprises a box body and a box door, wherein a hinge mechanism is arranged on one side of the box body, the box door is connected with the hinge mechanism, a front panel and a bottom plate are arranged inside the box body, the front panel is arranged on the front side of the box body, the bottom plate is arranged on the back side of the front panel, the bottom plate is provided with a lightning protection assembly, a main brake switch assembly, a separating brake switch assembly and a mutual inductor, the lightning protection assembly is connected with the main brake switch assembly, the main brake switch assembly is connected with the mutual inductor, and the mutual inductor is connected with the separating brake switch assembly; the lightning protection assembly, the main brake switch assembly, the opening brake switch assembly and the mutual inductor are connected and conducted through copper bars.
Furthermore, the lightning protection assembly comprises an alternating current lightning protection device, a first air switch and a wiring terminal, the alternating current lightning protection device is connected with the first air switch, and the first air switch is connected with the wiring terminal.
Further, the main brake switch assembly comprises two air switches II, a modular counter and an interlocking device, the two air switches II are connected and conducted through the copper bar, the wiring terminal is connected with the air switches II, one of the air switches II is connected with the modular counter, and one of the air switches II is provided with the interlocking device.
Further, the opening switch assembly comprises a socket and a plurality of air switches III, and the socket is electrically connected with the air switches III.
Furthermore, the alternating current distribution lightning protection integrated power supply further comprises a limiting component, one end of the limiting component is connected with the box body, the other end of the limiting component is connected with the box door, and the limiting component is used for limiting the opening angle of the box door.
Furthermore, the bottom plate is fixedly connected with a grounding bar, and the lightning protection assembly is connected with a ground wire through the grounding bar.
Further, the box is equipped with power input joint, power input joint one end is connected through the wire and is connected binding post, the external power cord of equipment is connected to the power input joint other end.
Further, the chamber door is equipped with the multifunctional electric meter, the multifunctional electric meter is connected the mutual-inductor, the multifunctional electric meter passes through the voltage and the electric current of mutual-inductor measurement circulation.
Furthermore, the chamber door still is equipped with the pilot lamp, the pilot lamp with the main brake switch subassembly is connected, the pilot lamp is used for instructing the behavior.
Furthermore, a pressure spring lock is arranged at the edge of the box door and used for closing the box door so as to tightly close the box door and the box body.
The invention has the beneficial effects that: the invention has compact overall power supply layout, is provided with the lightning protection component, the main brake switch component and the separating brake switch component, can automatically cut off a circuit in an emergency or when overvoltage lightning current is accessed, prevents various circuits and electrical equipment from being damaged by overvoltage, and ensures the safe operation of the main circuit and each branch in the box body.
Drawings
FIG. 1 is a front view of the case of the present invention;
FIG. 2 is a side of the case of the present invention;
fig. 3 is a schematic view of the connection on the base plate in the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
As shown in fig. 1 to 3, this embodiment provides an ac power distribution lightning protection integrated power supply, including a box 1 and a box door 2, where one side of the box 1 is provided with a hinge mechanism 3, the box door 2 is connected to the hinge mechanism 3, the box 1 is internally provided with a front panel 4 and a bottom plate 5, the front panel 4 is disposed on the front side of the box 1, the bottom plate 5 is disposed on the back side of the front panel 4, the bottom plate 5 is provided with a lightning protection component 6, a main brake switch component 7, a separating brake switch component 8 and a mutual inductor 9, the lightning protection component 6 is connected to the main brake switch component 7, the main brake switch component 7 is connected to the mutual inductor 9, and the mutual inductor 9 is connected to the separating brake switch component 8; the lightning protection component 6, the main brake switch component 7, the opening brake switch component 8 and the mutual inductor 9 are connected and conducted through a copper bar 10.
Further, the lightning protection assembly 6 comprises an alternating current lightning protector 11, a first air switch 12 and a connecting terminal 13, wherein the alternating current lightning protector 11 is connected with the first air switch 12, and the first air switch 12 is connected with the connecting terminal 13.
Further, the box 1 is provided with a power input connector 21, one end of the power input connector 21 is connected with the wiring terminal 13 through a wire, the other end of the power input connector 21 is connected with an external main power line, the bottom plate 5 is fixedly connected with a grounding bar 20, and the lightning protection assembly 6 is connected with a ground wire through the grounding bar 20.
The alternating current lightning protector has the function of overvoltage protection of various electrical equipment. Each connecting terminal connected with the alternating current lightning protector is respectively connected with a power input line of the power input connector, and the alternating current lightning protector is connected with a ground wire through a connecting ground bar; the alternating current lightning protector is disconnected with the ground wire in a normal state; the high voltage flows into the lower line to easily cause power failure, and the air switch is used for timely disconnecting the loop of the lower line so as to protect the normal work of the lower line.
When a thunderstorm occurs and high voltage and high current of the lightning current are accessed, the alternating current lightning arrester is immediately conducted with the ground wire, and the alternating current lightning arrester conducts the high voltage and the impact current into the ground through the grounding bar, so that the voltage amplitude is limited, the insulation of electrical equipment is protected, and the alternating current lightning arrester is quickly recovered until the high voltage disappears, so that the whole power supply can normally supply power.
Further, the main brake switch assembly 7 includes two air switches 14, a modular counter 15 and an interlocking device 16, the two air switches 14 are connected and conducted through the copper bar 10, the connection terminal 13 is connected with the two air switches 14, one of the two air switches 14 is connected with the modular counter 15, one of the two air switches 14 is provided with the interlocking device 16, and the first air switch 12 controls the conduction of the two air switches 14.
The two air switches are arranged, one air switch is operated, the other air switch serves as a standby switch, the interlocking device is used for locking the standby air switch II and preventing the standby air switch II from operating, when the operating air switch II breaks down and the failed air switch II is withdrawn from operating, the interlocking device unlocks the standby air switch II, and the standby air switch II can be operated, so that the damage caused by line tripping due to various reasons can be reduced.
Further, the opening switch assembly 8 comprises a socket 17 and a plurality of air switches III 18, and the socket 17 is electrically connected with the air switches III 18.
The air switch II controls the conduction of the air switches III, the air switches III are used for controlling the operation of each rear-end subordinate circuit respectively, a plurality of copper bars are led out from the lower end of the air switch II and connected with the air switch III after being connected with a transformer, and different voltage loads are supplied to each subordinate circuit respectively.
The alternating current lightning protector 11, the first air switch 12, the second air switch 14, the third air switch 18, the modular counter 15 and the socket 17 penetrate through the front panel 4 and are displayed.
In this embodiment, the ac distribution lightning protection integrated power supply further includes a limiting component 19, the limiting component 19 includes a connecting rod 25 and a fixing component 26, the fixing component 26 is fixed to the box door 2, one end of the connecting rod 25 is slidably connected to the fixing component 26, and the other end is rotatably connected to the box body 1; when the door 2 is opened, the door 2 is connected with and rotates around one side of the box body 1 through the hinge mechanism 3, the connecting rod 25 cannot be opened after sliding from one end of the fixing piece 26 to the other end, and the limiting component 19 is used for limiting the opening angle of the door 2.
Further, the box door 2 is provided with a multifunctional electric meter 22, the multifunctional electric meter 22 is connected with the mutual inductor 9, and the multifunctional electric meter 22 measures the voltage and the current flowing through the mutual inductor 9.
The transformer 9 is used to scale down the ac voltage and the large current in the circuit to values that can be directly measured by the multifunctional electric meter 22 while turning on the air switch three 18.
Further, the chamber door 2 still is equipped with pilot lamp 23, pilot lamp 23 is connected with the main control system, main brake switch subassembly 7, lightning protection subassembly 6 and separating brake switch subassembly 8 respectively with the main control system is connected, pilot lamp 23 is used for instructing the behavior.
The pilot lamp is equipped with two, and one pilot lamp is used for showing the condition of normal operation, and another pilot lamp is used for showing the trouble condition, is used for warning staff. When the circuit is in fault and any one of the first air switch, the second air switch or the third air switch is disconnected, the control host senses and controls the other indicator lamp to light up.
Furthermore, the edge of the box door 2 is provided with a pressure spring lock 24, the box body 1 is provided with a buckle, a locking piece is arranged on the pressure spring lock, the locking piece is driven to rotate by rotating the pressure spring lock, when the box door is closed, the pressure spring lock is rotated to enable the locking piece to correspond to the buckle, and the buckle buckles the locking piece to enable the box door to be tightly closed with the box body, so that dust is prevented from entering the box body.
In this embodiment, the two sides of the lightning protection component 6, the two sides of the main brake switch component 7 and the two sides of the opening switch component 8 are all connected with a fixed terminal 27, and the lightning protection component 6, the main brake switch component 7 and the opening switch component 8 are fixedly connected to the bottom plate 5 through the fixed terminal 27, so that the connection is firmer.
Four corners of the back of the box body 1 are respectively and fixedly connected with fixing pieces 28, and the box body 1 is fixed on a wall through fastening pieces by the fixing pieces 28.
The working principle of the alternating current distribution lightning protection integrated power supply is as follows:
the box body is fixed through a fixing sheet, an external main power line is connected through a power input connector, the power input connector is connected with a wiring terminal through a wire and then is connected with the alternating current lightning arrester, and the alternating current lightning arrester is connected with a first air switch; when a thunderstorm occurs, the power supply can trigger the alternating current lightning arrester to respond when high-voltage current of the lightning current flows into the power supply, the alternating current lightning arrester is grounded through the grounding bar, the high-voltage lightning current is led into the ground, the high-voltage lightning current is prevented from flowing into subordinate equipment and damaging the equipment, and in addition, the air switch can be disconnected to prevent the current without high voltage from flowing into the main brake switch assembly.
When the lower-level equipment or the circuit has fault conditions such as electric leakage, short circuit and the like, overlarge current is input into the air switch III, the air switch III triggers short-circuit protection, and the power supply can be cut off, so that the lower-level equipment or the circuit and the main brake switch assembly are safer; when the opening switch assembly fails, overlarge current is input into the second air switch to trigger the second air switch to be switched off, so that lower-level equipment or circuits are protected.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.

Claims (10)

1. The alternating current distribution lightning protection integrated power supply comprises a box body (1) and a box door (2), wherein a hinge mechanism (3) is arranged on one side of the box body (1), the box door (2) is connected with the hinge mechanism (3), and the alternating current distribution lightning protection integrated power supply is characterized in that a front panel (4) and a bottom plate (5) are arranged inside the box body (1), the front panel (4) is arranged on the front side of the box body (1), the bottom plate (5) is arranged on the back side of the front panel (4), the bottom plate (5) is provided with a lightning protection component (6), a main brake switch component (7), a separating brake switch component (8) and a mutual inductor (9), the lightning protection component (6) is connected with the main brake switch component (7), the main brake switch component (7) is connected with the mutual inductor (9), and the mutual inductor (9) is connected with the separating brake; the lightning protection assembly (6), the main brake switch assembly (7), the opening brake switch assembly (8) and the mutual inductor (9) are connected and conducted through a copper bar (10).
2. The AC distribution lightning protection integrated power supply according to claim 1, wherein the lightning protection component (6) comprises an AC lightning protector (11), a first air switch (12) and a terminal (13), the AC lightning protector (11) is connected with the first air switch (12), and the first air switch (12) is connected with the terminal (13).
3. The alternating current distribution lightning protection integrated power supply according to claim 2, wherein the main brake switch assembly (7) comprises two air switches (14), a modular counter (15) and an interlocking device (16), the two air switches (14) are connected and conducted through the copper bar (10), the wiring terminal (13) is connected with the two air switches (14), one of the two air switches (14) is connected with the modular counter (15), and one of the two air switches (14) is provided with the interlocking device (16).
4. The AC power distribution lightning protection integrated power supply according to claim 3, wherein the opening switch assembly (8) comprises a socket (17) and a plurality of air switches III (18), and the socket (17) is electrically connected with the air switches III (18).
5. The alternating current distribution lightning protection integrated power supply according to claim 1, further comprising a limiting component (19), wherein one end of the limiting component (19) is connected with the box body (1), the other end of the limiting component is connected with the box door (2), and the limiting component (19) is used for limiting the opening angle of the box door (2).
6. The alternating current distribution lightning protection integrated power supply according to claim 2, wherein a grounding bar (20) is fixedly connected to the bottom plate (5), and the lightning protection component (6) is connected to the ground wire through the grounding bar (20).
7. The alternating current distribution lightning protection integrated power supply according to claim 2, wherein the box body (1) is provided with a power input connector (21), one end of the power input connector (21) is connected with the wiring terminal (13) through a wire, and the other end of the power input connector (21) is connected with an external power line of equipment.
8. The alternating current distribution lightning protection integrated power supply according to claim 5, characterized in that the box door (2) is provided with a multifunctional electric meter (22), the multifunctional electric meter (22) is connected with the mutual inductor (9), and the multifunctional electric meter (22) measures the voltage and the current flowing through the mutual inductor (9).
9. The alternating current distribution lightning protection integrated power supply according to claim 8, wherein the box door (2) is further provided with an indicator lamp (23), the indicator lamp (23) is connected with the main brake switch assembly (7), and the indicator lamp (23) is used for indicating the operation condition.
10. The alternating current distribution lightning protection integrated power supply according to claim 9, characterized in that a compression spring lock (24) is arranged at the edge of the box door (2), and the compression spring lock (24) is used for closing the box door (2) so as to tightly close the box door (2) and the box body (1).
CN202110475472.2A 2021-04-29 2021-04-29 Alternating current distribution lightning protection integrated power supply Pending CN113131366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110475472.2A CN113131366A (en) 2021-04-29 2021-04-29 Alternating current distribution lightning protection integrated power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110475472.2A CN113131366A (en) 2021-04-29 2021-04-29 Alternating current distribution lightning protection integrated power supply

Publications (1)

Publication Number Publication Date
CN113131366A true CN113131366A (en) 2021-07-16

Family

ID=76781031

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110475472.2A Pending CN113131366A (en) 2021-04-29 2021-04-29 Alternating current distribution lightning protection integrated power supply

Country Status (1)

Country Link
CN (1) CN113131366A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203398559U (en) * 2013-07-17 2014-01-15 江苏荣联科技发展股份有限公司 Multi-path electric-quantity monitoring AC distribution box for communication base station
CN106711797A (en) * 2016-12-22 2017-05-24 苏州苏驼通信科技股份有限公司 Intelligent AC distribution box for base stations
CN206498122U (en) * 2017-02-21 2017-09-15 深圳市施乐德电气实业有限公司 A kind of distribution box
CN209419045U (en) * 2018-10-25 2019-09-20 浙江正泰电器股份有限公司 The shell structure of distribution box
CN211456685U (en) * 2019-12-26 2020-09-08 北京清网华科技股份有限公司 Power surge protection box
CN214754940U (en) * 2021-04-29 2021-11-16 韶关高尔德防雷科技有限公司 Alternating current distribution lightning protection integrated power supply

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203398559U (en) * 2013-07-17 2014-01-15 江苏荣联科技发展股份有限公司 Multi-path electric-quantity monitoring AC distribution box for communication base station
CN106711797A (en) * 2016-12-22 2017-05-24 苏州苏驼通信科技股份有限公司 Intelligent AC distribution box for base stations
CN206498122U (en) * 2017-02-21 2017-09-15 深圳市施乐德电气实业有限公司 A kind of distribution box
CN209419045U (en) * 2018-10-25 2019-09-20 浙江正泰电器股份有限公司 The shell structure of distribution box
CN211456685U (en) * 2019-12-26 2020-09-08 北京清网华科技股份有限公司 Power surge protection box
CN214754940U (en) * 2021-04-29 2021-11-16 韶关高尔德防雷科技有限公司 Alternating current distribution lightning protection integrated power supply

Similar Documents

Publication Publication Date Title
US9246325B2 (en) Connection device for transformer substation modules
US7612988B2 (en) Switchgear with movable user interface module
KR101449706B1 (en) Distributing board for realtime segmented sensing fault, harmonic wave and grounding resistance of power line and having a brocking and recovering function
KR100990736B1 (en) Switchgear protection and control to monitor the status of the protection system
KR101451389B1 (en) The Switchboard with the device of sensing open state and protecting of a current transformer
CN214754940U (en) Alternating current distribution lightning protection integrated power supply
CN206401744U (en) It is a kind of that there is the high pressure PT cabinets for detecting voltage and defencive function
CN2927441Y (en) Single-phase/three-phase phase-off protector
CN108418173A (en) A kind of arc-fault circuit interrupter
CN209657112U (en) A kind of railway computer room comprehensively monitoring protection system
CN113131366A (en) Alternating current distribution lightning protection integrated power supply
KR20170051984A (en) Before using electrical short circuit resistance measuring device for applying distribution board
TWM583158U (en) Improvement of AC system capacitor tripping device
KR102128036B1 (en) Arc protection system and method to control arc protection system
CN209217483U (en) A kind of switchgear with protection detection function
KR101473224B1 (en) Power distribution board for preventing of black out and arc fault
CN203327402U (en) Electrical control cabinet for mining flame-proof intrinsic-safety type refrigeration device
KR200305335Y1 (en) Surge distribution box for outdoor
CN107026411B (en) A kind of intelligent protection device and its implementation of armouring power high voltage equipment internal discharge failure
KR20120126344A (en) Distribution line purpose T branched type circuit breaker
CN111969566A (en) Improved capacitor tripping device for high-voltage AC system
US9490610B2 (en) Electrical enclosure voltage protection system
CN215833580U (en) Short circuit detection device for power system
CN219554656U (en) Maintenance power distribution optimizing equipment
CN114334537B (en) Backup protector of gapless surge protector

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
CB02 Change of applicant information

Address after: 512300 No.1 industrial transfer park, Lelang Road, Lechang City, Shaoguan City, Guangdong Province

Applicant after: Guangdong Gould Group Co.,Ltd.

Address before: 512300 No.1 industrial transfer park, Lelang Road, Lechang City, Shaoguan City, Guangdong Province

Applicant before: SHAOGUAN GAOERDE LIGHTNING PROTECTION TECHNOLOGY CO.,LTD.

CB02 Change of applicant information