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CN111934234A - Inflatable cabinet of marine boosting system - Google Patents

Inflatable cabinet of marine boosting system Download PDF

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Publication number
CN111934234A
CN111934234A CN202010793995.7A CN202010793995A CN111934234A CN 111934234 A CN111934234 A CN 111934234A CN 202010793995 A CN202010793995 A CN 202010793995A CN 111934234 A CN111934234 A CN 111934234A
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CN
China
Prior art keywords
chamber
sealed
operating mechanism
inflatable
cable
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
CN202010793995.7A
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Chinese (zh)
Other versions
CN111934234B (en
Inventor
李勇
孙文艺
郑明德
曾大生
甘绍添
辛道越
郭振超
陈琳
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.)
Guangdong Mingyang Electric Co ltd
Original Assignee
Guangdong Mingyang 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 Guangdong Mingyang Electric Co ltd filed Critical Guangdong Mingyang Electric Co ltd
Priority to CN202010793995.7A priority Critical patent/CN111934234B/en
Publication of CN111934234A publication Critical patent/CN111934234A/en
Application granted granted Critical
Publication of CN111934234B publication Critical patent/CN111934234B/en
Active legal-status Critical Current
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/045Details of casing, e.g. gas tightness
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/065Means for detecting or reacting to mechanical or electrical defects

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The invention discloses an inflatable cabinet of a marine boosting system, which comprises a low-pressure chamber, an operating mechanism chamber, a cable chamber and an inflatable compartment, wherein an embedded pole and an operating main shaft are arranged in the inflatable compartment, the embedded pole is longitudinally installed, an isolating switch static contact is arranged on the embedded pole, an isolating disconnecting link is arranged on the operating main shaft, the isolating disconnecting link and the embedded pole are installed in parallel and can be connected with the isolating switch static contact, the low-pressure chamber, the operating mechanism chamber, the cable chamber and the inflatable compartment are all independent sealing shells, and the outer surface of each sealing shell is provided with an anti-corrosion layer. The solid-sealed polar pole is longitudinally arranged, the isolating switch static contact is arranged on the solid-sealed polar pole, the isolating switch and the solid-sealed polar pole are installed in parallel, the internal structure of the inflatable compartment can be reduced, the size of the inflatable compartment is reduced, the inflatable cabinet is divided into a plurality of compartments, different compartments are respectively sealed and subjected to anti-corrosion treatment, the reliability of the inflatable cabinet is improved, and the inflatable cabinet is suitable for the offshore severe environment.

Description

Inflatable cabinet of marine boosting system
Technical Field
The invention relates to the technical field of power equipment, in particular to an inflatable cabinet of a marine boosting system.
Background
The main function of the switch cabinet is to open and close, control and protect electric equipment in the process of power generation, power transmission and electric energy conversion of an electric power system. With the development of technology, gas-filled cabinets began to appear and became the mainstream switch cabinet. The gas-filled cabinet takes low-pressure SF6 gas or other insulating gas as a main insulating medium, and high-pressure primary elements such as a circuit breaker or a load switch, a three-position isolating/grounding switch, a branch bus and the like are completely sealed in an independent stainless steel gas box, so that the insulating property of the switch equipment is ensured. As a new generation of switch equipment, the inflatable cabinet has the characteristics of compact structure, flexible operation, reliable interlocking and the like.
However, since the circuit breaker, the disconnecting switch and other key devices are integrated in a closed space environment, the operation status of the key devices in the cabinet, especially the possible faults of the key devices, cannot be known in time. Considering special environmental factors at sea, the working condition of the whole power distribution network can be directly influenced by a large probability, and a large influence is caused.
Along with the development of power equipment towards high capacity and high power, the capacity of a power system is integrally upgraded, the magnitude requirement of the power system on a switch cabinet is higher, and the characteristics of severe environments such as multiple sea waves, large vibration, moist environment, strong seawater salt mist corrosion and the like are considered, the gas-filled switchgear is arranged in the working environment for a long time, the gas-filled switchgear needs to have higher reliability, otherwise the gas-filled switchgear cannot adapt to the severe sea environment for a long time, and the integral service life of the switch cabinet is influenced.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the inflatable cabinet of the offshore boosting system, which is compact in structure and can adapt to the offshore environment.
The inflatable cabinet of the offshore boosting system comprises a low-pressure chamber; an operating mechanism chamber arranged below the low-pressure chamber and internally provided with a breaker switch; the cable chamber is arranged below the operating mechanism chamber, and a cable and a grounding bus connected with the cable are arranged in the cable chamber; aerify the compartment, set up in one side of operating device room and be located the top of cable chamber, it seals utmost point post, operation main shaft, inlet wire sleeve pipe and outlet sleeve pipe admittedly to aerify to be provided with in the compartment, gu seal the vertical installation of utmost point post, gu be provided with the isolator stationary contact on sealing utmost point post, be provided with the isolation switch on the operation main shaft, the isolation switch with gu seal utmost point post parallel mount and can with the isolator stationary contact is connected, the first end of operation main shaft extends to the operating device room and with the circuit breaker transmission is connected, the first end of operation main shaft just is located the operating device room with aerify the juncture of compartment and be provided with the dynamic seal, inlet wire sleeve's first end through branch generating line with gu seal utmost point post's lower terminal connection, inlet wire sleeve's second end extends to the cable chamber and with the cable is connected, the first end of the wire outlet sleeve is connected with the upper wiring end of the solid-sealed polar pole, the second end of the wire outlet sleeve extends out of the inflatable compartment, and a pressure release valve is arranged at the bottom of the inflatable compartment; wherein the low-pressure chamber, the operating mechanism chamber, the cable chamber and the inflation compartment are all relatively independent sealed shells, and the outer surface of each sealed shell is provided with an anti-corrosion layer.
The gas-filled cabinet of the offshore boosting system provided by the embodiment of the invention at least has the following beneficial effects:
the solid-sealed polar pole is longitudinally arranged, the isolating switch static contact is arranged on the solid-sealed polar pole, the isolating switch and the solid-sealed polar pole are installed in parallel, the internal structure of the inflatable compartment can be reduced, the size of the inflatable compartment is reduced, the total volume of the inflatable cabinet is reduced, the inflatable cabinet is divided into a plurality of compartments, different compartments are sealed and subjected to anti-corrosion treatment respectively, the improvement of the reliability of the inflatable cabinet is facilitated, and the inflatable cabinet is suitable for the offshore severe environment.
According to some embodiments of the invention, the sealed housing is welded using stainless steel plates.
According to some embodiments of the invention, the welding of the sealed housing is painted with silver paint.
According to some embodiments of the invention, an outer door is provided on the sealed housing of the low pressure chamber and the actuator chamber, and a sealing ring is provided at an edge of the outer door.
According to some embodiments of the invention, a transparent protective panel is further provided on the sealed housing of the low pressure chamber and/or the operator compartment.
According to some embodiments of the present invention, an IED device is disposed within the low pressure chamber, the IED device being electrically connected to at least one of a voltage detection module, a current detection module, a gas density detection module, a temperature detection module, and a microswitch.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a left side view of the internal structure of a gas-filled tank of an offshore booster system according to an embodiment of the present invention;
FIG. 2 is a rear view of the plenum compartment of the offshore booster system plenum box shown in FIG. 1;
FIG. 3 is a left side view of the internal structure of the inflatable cabinet of the offshore booster system according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a low-pressure chamber of the inflatable cabinet of the offshore boosting system shown in fig. 3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 and 2, the present embodiment discloses an inflatable cabinet of an offshore boosting system, which includes a low pressure chamber 100, an operating mechanism chamber 200, a cable chamber 300 and an inflatable compartment 400, wherein the operating mechanism chamber 200 is disposed below the low pressure chamber 100, a circuit breaker switch 210 is disposed inside the operating mechanism chamber 200, the cable chamber 300 is disposed below the operating mechanism chamber 200, a cable 310 and a ground bus 320 connected to the cable 310 are disposed inside the cable chamber 300, and the inflatable compartment 400 is disposed in the operating mechanism chamber 200At one side and above the cable chamber 300, the air-filled compartment 400 is filled with SF6It is gaseous, be provided with in the compartment 400 and seal utmost point post 410 admittedly, operation main shaft 420, inlet wire sleeve 430 and outlet wire sleeve 440 admittedly, gu seal utmost point post 410 and operation main shaft 420 all install on an integrated frame 470, gu seal utmost point post 410 vertically installs, gu be provided with isolator stationary contact 411 on sealing utmost point post 410 admittedly, be provided with isolation switch 421 on the operation main shaft 420, isolation switch 421 with gu seal utmost point post 410 parallel mount and can be connected with isolator stationary contact 411, can reduce the inner structure that aerifys compartment 400 compacter, be favorable to dwindling the volume of aerifing compartment 400, thereby reduce the total volume of aerifing the cabinet, realize miniaturized design. The first end of the operation main shaft 420 extends to the operation mechanism chamber 200 and is in transmission connection with the breaker switch 210, the breaker switch 210 can drive the operation main shaft 420 to rotate, thereby driving the isolation switch 421 to rotate, and further realizing the connection or separation of the isolation switch 421 and the isolation switch stationary contact 411, the first end of the operation main shaft 420 and the junction between the operation mechanism chamber 200 and the inflation compartment 400 are provided with the dynamic seal 450, the air leakage at the connection between the operation main shaft 420 and the operation mechanism chamber 200 can be avoided, and the improvement of the sealing performance of the inflation compartment 400 is facilitated. The first end of the incoming line sleeve 430 is connected with the lower wiring end of the solid-sealed polar pole 410 through the branch bus 431, the second end of the incoming line sleeve 430 extends to the cable chamber 300 and is connected with the cable 310, the first end of the outgoing line sleeve 440 is connected with the upper wiring end of the solid-sealed polar pole 410, the second end of the outgoing line sleeve 440 extends out of the inflatable compartment 400, a pressure release valve 460 is arranged at the bottom of the inflatable compartment 400, the pressure release valve 460 is communicated with a pressure release channel 461, and SF in the inflatable compartment 400 can be treated6The gas is collected to avoid random discharge to pollute the environment. The low-pressure chamber 100, the operating mechanism chamber 200, the cable chamber 300 and the inflating compartment 400 are all relatively independent sealed shells, and an anti-corrosion layer is arranged on the outer surface of each sealed shell, so that the reliability of the inflating cabinet is improved, and the inflating cabinet is suitable for the severe marine environment.
Compared with the conventional onshore environment, the offshore environment has more water vapor, more salt and strong acidity, and has stronger corrosion capability. In order to improve the corrosion resistance of the sealing shell, the sealing shell is formed by welding stainless steel plates. In some embodiments, the sealed housing of the plenum chamber 400 is welded by using 304 stainless steel plates, the 304 stainless steel plates have good corrosion resistance, while the housings of the low pressure chamber 100, the operating mechanism chamber 200 and the cable chamber 300 are made of galvanized plates with low cost, and in order to further improve the corrosion resistance, the core components inside the low pressure chamber 100, the operating mechanism chamber 200 and the cable chamber 300 can be made of steel, and a galvanized layer is plated on the surface of the core components, thereby improving the corrosion resistance of the core components.
In some embodiments, for the sealing shell made of the stainless steel plate, the silver paint is sprayed on the welding position of the sealing shell, so that the appearance can be beautified.
Referring to fig. 3 and 4, since components in the low pressure chamber 100 or the operating mechanism chamber 200 need to be operated during the operation of the gas insulated switchgear, in order to facilitate the operation and prevent the components in the low pressure chamber 100 and the operating mechanism chamber 200 from being exposed to moisture for a long time, the outer doors 110 are disposed on the sealing housings of the low pressure chamber 100 and the operating mechanism chamber 200, and a sealing ring (not shown) is disposed at the inner edge of each of the outer doors 110, so that when the outer doors 110 are closed, the sealing ring can seal gaps of the outer doors 110 to reduce moisture entering the low pressure chamber 100 and the operating mechanism chamber 200.
In order to further reduce the influence of moisture on the components in the low pressure chamber 100 and the operating mechanism chamber 200, a transparent protective panel (not shown) is further disposed on the sealed housing of the low pressure chamber 100 and/or the operating mechanism chamber 200, and the protective panel is mounted on the indicating component, so that the protective panel can block moisture to some extent and is convenient for human eyes to observe.
To facilitate understanding of the operation of the inside of the gas-filled cabinet, an IED (Intelligent Electronic Device) Device is provided in the low-voltage chamber 100, and includes one or more processors, and any Device that receives and transmits data from or controls an external source, i.e., an Electronic multifunctional meter, microcomputer protection, controller, and an entity capable of performing one or more logical contact tasks within the range defined by the interface under a specific environment. The IED device is electrically connected with at least one of a voltage detection module, a current detection module 330, a gas density detection module 480, a temperature detection module and a microswitch, the voltage detection module is used for monitoring the voltage condition of a secondary circuit, realizing line protection and preventing the occurrence of conditions such as overcurrent, the current detection module 330 adopts a feed-through current transformer, the current detection module 330 is arranged on a cable 310 in a cable chamber 300 and can realize the current measurement function, the gas density detection module 480 adopts a gas density monitoring meter and is used for detecting the gas density in an inflation compartment 400 and alarming when the gas density in the inflation compartment 400 is lower than a threshold value so as to avoid the influence of the too low gas density on the insulation degree, the temperature detection module is used for monitoring the temperature in an operating mechanism chamber 200 and ensuring that the temperature in the operating mechanism chamber 200 is within a safe threshold value range, and the microswitch is arranged on each action mechanism of a circuit breaker 210, the detection device is used for detecting whether the breaker switch 210 can complete the switching-off and switching-on actions, is favorable for timely knowing the operation condition in the gas-filled cabinet, finds operation faults in time and takes emergency treatment measures.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (6)

1. An inflatable cabinet of an offshore boosting system, comprising:
a low pressure chamber (100);
an operating mechanism chamber (200) which is arranged below the low-pressure chamber (100) and is internally provided with a breaker switch (210);
a cable chamber (300) provided below the operating mechanism chamber (200), and having a cable (310) and a ground bus (320) connected to the cable (310) provided therein;
an inflation compartment (400) which is arranged on one side of the operating mechanism chamber (200) and is positioned above the cable chamber (300), wherein a solid-sealed polar pole (410), an operating main shaft (420), a wire inlet sleeve (430) and a wire outlet sleeve (440) are arranged in the inflation compartment (400), the solid-sealed polar pole (410) is longitudinally installed, an isolating switch stationary contact (411) is arranged on the solid-sealed polar pole (410), an isolating knife switch (421) is arranged on the operating main shaft (420), the isolating knife switch (421) and the solid-sealed polar pole (410) are installed in parallel and can be connected with the isolating switch stationary contact (411), a first end of the operating main shaft (420) extends to the operating mechanism chamber (200) and is in transmission connection with the circuit breaker switch (210), and a dynamic seal (450) is arranged at the junction of the operating mechanism chamber (200) and the inflation compartment (400), the first end of the wire inlet sleeve (430) is connected with the lower wiring end of the solid-sealed polar pole (410) through a branch bus (431), the second end of the wire inlet sleeve (430) extends to the cable chamber (300) and is connected with the cable (310), the first end of the wire outlet sleeve (440) is connected with the upper wiring end of the solid-sealed polar pole (410), the second end of the wire outlet sleeve (440) extends out of the inflatable compartment (400), and a pressure release valve (460) is arranged at the bottom of the inflatable compartment (400);
wherein the low-pressure chamber (100), the operating mechanism chamber (200), the cable chamber (300) and the inflation compartment (400) are all relatively independent sealed shells, and the outer surface of each sealed shell is provided with an anti-corrosion layer.
2. The inflatable cabinet of an offshore boosting system according to claim 1, wherein the sealed housing is welded by stainless steel plates.
3. An inflatable cabinet of an offshore boosting system according to claim 1 or 2, wherein the welding part of the sealed shell is coated with silver paint.
4. A pneumatic tank for an offshore booster system, according to claim 1, wherein an outer door (110) is provided on the sealed housing of the low pressure chamber (100) and the operating mechanism chamber (200), and a sealing ring is provided at the edge of the outer door (110).
5. A maritime booster system gas-filled cabinet according to claim 4, characterized in that a transparent protection panel is further provided on the sealed housing of the low pressure chamber (100) and/or the operating mechanism chamber (200).
6. An offshore booster system gas cabinet according to claim 1, characterized in that an IED device is arranged within the low pressure chamber (100), the IED device being electrically connected to at least one of a voltage detection module, a current detection module (330), a gas density detection module (480), a temperature detection module and a microswitch.
CN202010793995.7A 2020-08-10 2020-08-10 Offshore boosting system inflatable cabinet Active CN111934234B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010793995.7A CN111934234B (en) 2020-08-10 2020-08-10 Offshore boosting system inflatable cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010793995.7A CN111934234B (en) 2020-08-10 2020-08-10 Offshore boosting system inflatable cabinet

Publications (2)

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CN111934234A true CN111934234A (en) 2020-11-13
CN111934234B CN111934234B (en) 2024-06-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113422318A (en) * 2021-05-31 2021-09-21 沈阳华德海泰电器有限公司 72.5kV looped netowrk cabinet of offshore wind power is exclusively used in

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Publication number Priority date Publication date Assignee Title
WO2008080288A1 (en) * 2006-12-30 2008-07-10 Yongbo Zhu A full-insulative waterproof switch cabinet
CN202050184U (en) * 2011-05-20 2011-11-23 湖南丰日电源电气股份有限公司 Inflating type high-voltage modularized vacuum circuit breaker cabinet
CN102957107A (en) * 2011-08-31 2013-03-06 湖南丰日电源电气股份有限公司 Solid insulated high-voltage vacuum switch cabinet utilizing environment-friendly gas
CN203367763U (en) * 2013-07-09 2013-12-25 中广核风电有限公司 Special 35 kV, SF6 inflation switch cabinet for wind power
CN212784515U (en) * 2020-08-10 2021-03-23 广东明阳电气股份有限公司 Offshore pressure boosting system SF6Gas-filled cabinet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008080288A1 (en) * 2006-12-30 2008-07-10 Yongbo Zhu A full-insulative waterproof switch cabinet
CN202050184U (en) * 2011-05-20 2011-11-23 湖南丰日电源电气股份有限公司 Inflating type high-voltage modularized vacuum circuit breaker cabinet
CN102957107A (en) * 2011-08-31 2013-03-06 湖南丰日电源电气股份有限公司 Solid insulated high-voltage vacuum switch cabinet utilizing environment-friendly gas
CN203367763U (en) * 2013-07-09 2013-12-25 中广核风电有限公司 Special 35 kV, SF6 inflation switch cabinet for wind power
CN212784515U (en) * 2020-08-10 2021-03-23 广东明阳电气股份有限公司 Offshore pressure boosting system SF6Gas-filled cabinet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113422318A (en) * 2021-05-31 2021-09-21 沈阳华德海泰电器有限公司 72.5kV looped netowrk cabinet of offshore wind power is exclusively used in

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Address after: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400

Applicant after: Guangdong Mingyang Electric Co.,Ltd.

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