CN116565761B - DC ice melting sliding type short circuit control system for power transmission wire and power transmission wire splicing sleeve - Google Patents

DC ice melting sliding type short circuit control system for power transmission wire and power transmission wire splicing sleeve Download PDF

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Publication number
CN116565761B
CN116565761B CN202310630521.4A CN202310630521A CN116565761B CN 116565761 B CN116565761 B CN 116565761B CN 202310630521 A CN202310630521 A CN 202310630521A CN 116565761 B CN116565761 B CN 116565761B
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CN
China
Prior art keywords
power transmission
control system
contact system
splicing sleeve
cross arm
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Active
Application number
CN202310630521.4A
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Chinese (zh)
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CN116565761A (en
Inventor
祝贺
王洋
荆禹博
汤汶朋
潘胜男
张悦
韩兆冰
刘城
陈文龙
郑亚松
代晓东
侯笑天
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Northeast Electric Power University
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Northeast Dianli University
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Priority to CN202310630521.4A priority Critical patent/CN116565761B/en
Publication of CN116565761A publication Critical patent/CN116565761A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/14Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables

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  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

The invention relates to the technical field of operation and maintenance of a power transmission line splicing sleeve, in particular to a power transmission wire and a direct-current deicing sliding type short circuit control system of the power transmission wire splicing sleeve, which comprises the following components: the tower is provided with an iron tower cross arm above the tower, a connecting tube is arranged at the top of the iron tower cross arm, and a linear rail is arranged at the edge of the iron tower cross arm; further comprises: a moving contact system; the static contact system is contacted with the moving contact system to form a loop, so that ice melting current is generated; the drainage device system is used for conveying ice melting current to the splicing sleeve; a hub control system; and a PC control system. According to the invention, the fixed contact system is fixed at the lower side of the cross arm of the power transmission line splicing sleeve iron tower in an unoperated state, and the fixed contact system is driven by the rotating motor to move to the position right above the moving contact system, so that the contact accuracy of the fixed contact and the moving contact is improved by adopting a sliding method; under the non-working state, the fixed contact system is fixedly arranged at the lower end of the cross arm of the iron tower and keeps fixed, and under the non-working state, the device is kept stable.

Description

DC ice melting sliding type short circuit control system for power transmission wire and power transmission wire splicing sleeve
Technical Field
The invention relates to the technical field of operation and maintenance of a power transmission line splicing sleeve, in particular to a power transmission wire and a direct-current deicing sliding type short-circuit control system of the power transmission wire splicing sleeve.
Background
In the use process of the steel-cored aluminum strand connecting tube, the steel core is often damaged by compression fatigue and strand breakage due to the defects of materials and compression technology. Or after crimping, the aluminum stranded wire and the aluminum alloy splicing sleeve are subjected to yield hardening, the thermal expansion is inconsistent and cannot be compensated, gaps are formed at the crimping positions of the splicing sleeve and the aluminum stranded wire, air and water are oxidized after entering, so that the contact resistance of the crimping positions of the splicing sleeve and the aluminum stranded wire is increased, heat is generated, and the wire is failed to be disconnected after being spliced. The weight of the splicing sleeve is increased under the effect of icing, and the splicing sleeve vibrates or even waves under the effect of wind power, so that the normal operation of a power transmission line is affected.
At present, research and development of a direct-current deicing sliding type short-circuit control system with full-automatic, high-sensitivity, safe and reliable power transmission wires and power transmission wire splicing sleeves is an urgent problem to be solved in the field of operation and maintenance of power transmission line splicing sleeves.
In view of this, we propose a dc-ice-melting sliding type shorting control system for a transmission line and a transmission line splicing sleeve.
Disclosure of Invention
In order to make up for the defects, the invention provides a direct-current deicing sliding type short-circuit control system for a power transmission wire and a power transmission wire splicing sleeve.
The technical scheme of the invention is as follows:
transmission line and transmission line splicing sleeve direct current ice melting sliding type short circuit control system includes:
the tower is characterized in that an iron tower cross arm is arranged above the tower, a connecting tube is arranged at the top of the iron tower cross arm, and a linear rail is arranged at the edge of the iron tower cross arm;
further comprises:
the movable contact system is arranged below the linear rail and can move on the linear rail;
the static contact system comprises a cylindrical static contact, wherein the cylindrical static contact is used for being contacted with the moving contact system to form a loop so as to generate ice melting current;
the drainage device system is used for conveying ice melting current to the splicing sleeve;
the central control system is used for controlling the connection between the movable contact system and the fixed contact system;
and the PC control system is used for connecting the central control system and the drainage device system.
As the preferable technical scheme of the invention, two groups of moving contact systems are respectively positioned at two sides of the fixed contact system.
As the preferable technical scheme of the invention, the movable contact system comprises an insulator chain, the upper end of the insulator chain is connected with a self-made U-shaped ring through a U-shaped ring and a ball head hanging ring, the self-made U-shaped ring is connected with a flange plate supporting rod through a U-shaped ring bolt, and the left flange plate supporting rod is connected with a connecting platform through a flange bolt.
As the preferable technical scheme of the invention, the lower end of the insulator string is connected with a bowl head hanging plate, the lower end of the bowl head hanging plate is connected with a T-shaped plate, and the T-shaped plate is connected with a platform connecting plate through a T-shaped plate fixing bolt.
As the preferable technical scheme of the invention, a metal wiring board is arranged between the platform connecting boards through metal plating material fixing bolts, a contact arm is arranged on the metal wiring board, a plum blossom moving contact is arranged at the upper end of the contact arm, and the plum blossom moving contact is fixed on a linear track.
As the preferable technical scheme of the invention, the static contact system further comprises a hollow aluminum pipe, the cylindrical static contact is positioned at the lower end of the hollow aluminum pipe, the drainage device system is connected with the hollow aluminum pipe, a lower end connecting plate of a post insulator string is arranged in the hollow aluminum pipe, and a first post insulator string and a second post insulator string are arranged at the upper end of the lower end connecting plate of the post insulator string.
As a preferable technical scheme of the invention, the first post insulator string and the second post insulator string are connected with a motor plugboard, and the motor plugboard is connected with a rotating motor through a gear motor.
As the preferable technical scheme of the invention, a cross arm upper supporting plate is arranged above the speed reducing motor, and straight line travelling motors are arranged at the left side and the right side of the upper end of the cross arm upper supporting plate.
As a preferred technical scheme of the invention, the drainage device system comprises copper braided wires, and the copper braided wires are connected with the hollow aluminum tube through drainage clamps.
As the preferable technical scheme of the invention, the drainage device system further comprises a drainage wire, the drainage wire is connected with the moving contact system through a drainage wire jointing clamp, and the drainage wire is connected with the connecting tube through a confluence wire clamp.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the fixed contact system is fixed at the lower side of the cross arm of the power transmission line splicing sleeve iron tower in an unoperated state, and the fixed contact system is driven by the rotating motor to move to the position right above the moving contact system, so that the contact accuracy of the fixed contact and the moving contact is improved by adopting a sliding method; under the non-working state, the fixed contact system is fixedly arranged at the lower end of the cross arm of the iron tower and keeps fixed, and under the non-working state, the device is kept stable.
Drawings
Fig. 1 is a schematic diagram of a dc ice melting sliding type short circuit control system for a power transmission wire and a power transmission wire splicing sleeve in the invention;
fig. 2 is a diagram of an unoperated state of a dc-ice-melting sliding type shorting control system for a power transmission wire and a power transmission wire splicing sleeve according to the present invention;
FIG. 3 is a diagram showing a combination of a moving contact system and a fixed contact system according to the present invention;
fig. 4 is a general diagram of a dc-ice-melting sliding type shorting operation system for a power transmission wire and a power transmission wire splicing sleeve according to the present invention;
FIG. 5 is a schematic control diagram of the center principle of the present invention;
FIG. 6 is a view of a linear track in the present invention;
fig. 7 shows a PC control system according to the present invention.
The significance of each punctuation mark in the figure is as follows:
001. a moving contact system; 007. an insulator string; 009. a flange support rod; 0010. a connecting platform; 0011. self-made U-shaped ring; 0013. a U-shaped ring; 0015. ball hanging ring; 0017. bowl head hanging plate; 0019. t-shaped plates; 0021. a platform connecting plate; 0023. a metal wiring board; 0024. a contact arm; 0025. quincuncial movable contacts; 0026. a flange bolt; 0027. t-shaped plate fixing bolts; 0028. metal-plated material fixing bolts; 0062. a linear rail; 0072. u-shaped ring bolt
002. A stationary contact system; 0029. a cylindrical static contact; 0030. a hollow aluminum tube; 0031. a first post insulator string; 0032. a second post insulator string; 0033. the lower end connecting plate of the pillar insulator string; 0034. a rotating electric machine; 0035. a speed reducing motor; 0036. a motor plugboard; 0037. a connecting bolt; 0038. a cross arm upper support plate; 0039. a linear travel motor; 0041. a first signal transmitter; 0066. a first bolt hole; 0067. a second bolt hole; 0068. a round hole;
003. a drainage device system; 0042. a drainage wire clamp; 0043. copper braided wire; 0044. a drainage wire jointing clamp; 0045. a drainage line; 0046. a confluence wire clamp; 0047. draining the aluminum busbar; 0048. a composite post insulator;
004. a hub control system; 0049. an acceleration sensor; 0050. a speed sensor; 0051. a limiter; 0052. a main singlechip; 0053. a first singlechip; 0054. a second singlechip; 0055. a storage battery; 0056. a solar charging panel; 0057. a power switch; 0058. a protective shell; 0059. a fixing device;
005. a PC control system; 0060. a second signal transmitter; 0061. a third signal transmitter; 0063. a PC end; 0065. ground surface;
0064. a pole tower; 0069. a splicing sleeve; 0070. iron tower cross arm.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-7, the present invention is described in detail by the following embodiments:
transmission line and transmission line splicing sleeve direct current ice melting sliding type short circuit control system includes:
and a tower 0064, a tower cross arm 0070 is arranged above the tower 0064 through bolts, a splicing sleeve 0069 is arranged at the top of the tower cross arm 0070 through bolts, and a linear rail 0062 is arranged at the edge of the tower cross arm 0070 through bolts.
Further comprises:
the movable contact system 001, the movable contact system 001 is installed in the straight line track 0062 below, the movable contact system 001 can remove on the straight line track 0062, the movable contact system 001 has two sets ofly, be located fixed contact system 002 both sides respectively, the movable contact system 001 includes insulator chain 007, insulator chain 007 upper end fixed mounting has bulb link 0015, bulb link 0015 joint is connected with U type ring 0013, U type ring 0013 top joint is connected with self-control U type ring 0011, self-control U type ring 0011 is connected with the ring flange bracing piece 009 through U type ring bolt 0072, left ring flange bracing piece 009 is connected with connecting platform 0010 through flange bolt 0026, connecting platform 0010 connects in ring flange bracing piece 009 upper end.
Insulator chain 007 lower extreme fixedly connected with bowl first link 0017, bowl first link 0017 lower extreme fixedly connected with T template 0019, T template 0019 is connected with platform connecting plate 0021 through T template fixing bolt 0027, install metal wiring board 0023 through metal material fixing bolt 0028 between the platform connecting plate 0021, the welding has on the metal wiring board 0023 and touches arm 0024, touch arm 0024 upper end joint has plum blossom moving contact 0025 and plum blossom moving contact 0025 fixed mounting on linear orbit 0062.
The insulator string 007 serves to increase the distance between the moving contact system 001 and the tower 0064, and serves as insulation.
The fixed contact system 002, the fixed contact system 002 includes cylinder fixed contact 0029, cylinder fixed contact 0029 is used for forming the return circuit with moving contact system 001, produces the ice-melt electric current, and fixed contact system 002 still includes hollow aluminum pipe 0030, cylinder fixed contact 0029 joint is in hollow aluminum pipe 0030 lower extreme, through connecting bolt 0037 fixed mounting pillar insulator chain lower extreme connecting plate 0033 in the hollow aluminum pipe 0030, pillar insulator chain lower extreme connecting plate 0033 upper end is installed first pillar insulator chain 0031 and second pillar insulator chain 0032 through the bolt.
The hollow aluminum pipe 0030 is provided with a first bolt hole 0066 in a penetrating way, the upper end of a connecting plate 0033 at the lower end of the post insulator chain is a steel plate, the lower end of the steel plate is welded with an iron rod, the iron rod is provided with a second bolt hole 0067 in a penetrating way, and the first bolt hole 0066 corresponds to the second bolt hole 0067 one by one.
The first and second leg insulator strings 0031 and 0032 are bolted with motor inserts 0036, and the motor inserts 0036 are connected to a rotating motor 0034 by a reducing motor 0035.
The motor insert plate 0036 is of a T shape, a round hole 0068 is formed in the vertical plate, the size of the round hole 0068 is the same as that of a rotary rod at the front end of the speed reducing motor 0035, and the speed reducing motor 0035 is used for reducing the rotating speed of the rotary motor 0034 and improving torque.
A cross arm upper support plate 0038 is mounted above the speed reducing motor 0035 through bolts, and straight line travelling motors 0039 are mounted on the left side and the right side of the upper end of the cross arm upper support plate 0038 through bolts.
The gear motor 0035 is inversely hung below the cross arm upper supporting plate 0038, the top end of the linear traveling motor 0039 is fixedly connected with the connecting platform (the upper end of the connecting flange supporting rod), and the linear traveling motor 0039 can drive the connecting platform 0010 to move along the vertical direction.
And a drainage device system 003, wherein the drainage device system 003 is used for conveying ice melting current to a connecting tube 0069, the drainage device system 003 is connected with a hollow aluminum tube 0030, the drainage device system 003 comprises a copper braided wire 0043, the copper braided wire 0043 is connected with the hollow aluminum tube 0030 through a drainage wire clamp 0042, the drainage device system 003 further comprises a drainage wire 0045, the drainage wire 0045 is connected with a moving contact system 001 through a drainage wire clamp 0044, and the drainage wire 0045 is connected with the connecting tube 0069 through a confluence wire clamp 0046.
A drainage aluminum busbar 0047 is arranged below the iron tower cross arm 0070 through a composite post insulator 0048, and the drainage aluminum busbar 0047 is fixedly connected with a copper braided wire 0043; the first signal transmitter 0041 is fixedly mounted on the drain wire clamp 0042.
The central control system 004, the central control system 004 is used for controlling the connection of the movable contact system 001 and the fixed contact system 002, the central control system 004 comprises a protective shell 0058, a main singlechip 0052, an acceleration sensor 0049, a speed sensor 0050, a limiter 0051, a first singlechip 0053 and a second singlechip 0054 are fixedly arranged in the protective shell 0058, a storage battery 0055 is fixedly arranged on the left side inside the protective shell 0058, and a solar charging plate 0056 and a power switch 0057 are connected above the storage battery 0055 through wires.
Acceleration sensor 0049 and speed sensor 0050 are used for regulating the speed of system operation, stopper 0051 is used for limiting the movement position of moving contact system 001 and stationary contact system 002, and battery 0055 is used for providing operating power supply.
The central control system 004 further comprises a fixing device 0059, which fixing device 0059 is used for fixing the stationary contact system 002 in the non-operating state.
A PC control system 005, the PC control system 005 for connecting the hub control system 004 and the drainage device system 003, the PC control system 005 comprising a second signal transmitter 0060, a third signal transmitter 0061 and a PC terminal 0063,
the third signal transmitter 0061 is connected to a drainage device system 003, the second signal transmitter 0060 is connected to a central control system 004, and the PC-side 0063 is used to communicate with the second signal transmitter 0060 and the third signal transmitter 0061 at the ground 0065.
In the inactive state, the rotating electric machine 0034 can drive the motor insert plate 0036 to move, thereby positioning the stationary contact system 002 in the fixture 0059, and fixing the stationary contact system 002 from damage by external environmental impact. Copper braided wire 0043 is suspended between current-guiding aluminum busbar 0047 and current-guiding wire clamp 0042 for soft connection, at this time without ice-melting current, and static contact system 002, current-guiding wire clamp 0042 and current-guiding aluminum busbar 0047 are all not charged. The movable contact system 001 is arranged below the fixed iron tower cross arm 0070, and the drainage wire 0045 is connected with a metal wiring board 0023 in the movable contact system 001 through a drainage wire binding clip 0044, and the metal wiring board 0023, the contact arm 0024, the plum blossom movable contact 0025 and the platform connecting board 0021 are electrified.
The PC end 0063 gives out a signal, and the rotating motor 0034 is started to drive the static contact system 002 to move to the position right above the moving contact system 001, and the linear traveling motor 0039 pushes the moving contact system 001 forward, so that the cylindrical static contact 0029 and the plum blossom moving contact 0025 are contacted with each other to form a loop, and ice melting current is generated. The deicing current is introduced through copper braid wire 0043, passed through drain wire 0045 and then passed to overhead line splicing sleeve 0069 to begin deicing. After the ice melting is finished, the input of ice melting current is stopped, the linear travelling motor 0039 moves downwards to separate the cylindrical fixed contact 0029 from the plum blossom movable contact 0025, and the rotating motor 0034 moves the fixed contact system 002 to the lower side of the iron tower cross arm 0070 to fix the fixed contact system.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. Transmission line and transmission line splicing sleeve direct current ice melting sliding type short circuit control system includes:
a tower (0064), wherein an iron tower cross arm (0070) is arranged above the tower (0064), a splicing sleeve (0069) is arranged at the top of the iron tower cross arm (0070), and a linear track (0062) is arranged at the edge of the iron tower cross arm (0070);
characterized by further comprising:
a moving contact system (001), the moving contact system (001) being mounted under a linear track (0062), the moving contact system (001) being movable on the linear track (0062);
the fixed contact system (002), the fixed contact system (002) comprises a cylindrical fixed contact (0029), and the cylindrical fixed contact (0029) is used for forming a loop with the movable contact system (001) to generate ice melting current;
a drainage device system (003), the drainage device system (003) for delivering ice-melting current onto a splice closure (0069);
a hub control system (004), wherein the hub control system (004) is used for controlling the connection of the movable contact system (001) and the fixed contact system (002);
a PC control system (005), the PC control system (005) being configured to connect the central control system (004) and the drainage device system (003);
the static contact system (002) further comprises a hollow aluminum pipe (0030), the cylindrical static contact (0029) is positioned at the lower end of the hollow aluminum pipe (0030), the drainage device system (003) is connected with the hollow aluminum pipe (0030), a lower end connecting plate (0033) of a post insulator string is arranged in the hollow aluminum pipe (0030), and a first post insulator string (0031) and a second post insulator string (0032) are arranged at the upper end of the lower end connecting plate (0033) of the post insulator string; the first pillar insulator string (0031) and the second pillar insulator string (0032) are connected with a motor plug board (0036), the motor plug board (0036) is connected with a rotating motor (0034) through a speed reducing motor (0035), and the rotating motor (0034) is used for driving a fixed contact system (002) to slidably move to a position right above a moving contact system (001).
2. The power transmission conductor and power transmission conductor splicing sleeve direct current ice melting sliding type short circuit control system according to claim 1, wherein:
the movable contact system (001) is provided with two groups, and the two groups are respectively positioned at two sides of the fixed contact system (002).
3. The power transmission conductor and power transmission conductor splicing sleeve direct current ice melting sliding type short circuit control system as claimed in claim 2, wherein:
the movable contact system (001) comprises an insulator chain (007), the upper end of the insulator chain (007) is connected with a self-made U-shaped ring (0011) through a U-shaped ring (0013) and a ball head hanging ring (0015), the self-made U-shaped ring (0011) is connected with a flange plate supporting rod (009) through a U-shaped ring bolt (0072), and the flange plate supporting rod (009) is connected with a connecting platform (0010) through a flange bolt (0026).
4. A transmission line and transmission line closure dc ice-melt sliding shorting control system as claimed in claim 3, wherein:
the lower extreme of insulator chain (007) is connected with bowl first link plate (0017), bowl first link plate (0017) lower extreme is connected with T template (0019), T template (0019) are connected with platform connecting plate (0021) through T template fixing bolt (0027).
5. The power transmission conductor and power transmission conductor splicing sleeve direct current ice melting sliding type short circuit control system according to claim 4, wherein:
install metal wiring board (0023) through metal material fixing bolt (0028) between platform connecting plate (0021), be equipped with on metal wiring board (0023) and touch arm (0024), touch arm (0024) upper end is equipped with plum blossom moving contact (0025) and plum blossom moving contact (0025) are fixed on linear orbit (0062).
6. The power transmission conductor and power transmission conductor splicing sleeve direct current ice melting sliding type short circuit control system according to claim 1, wherein:
and a cross arm upper supporting plate (0038) is arranged above the speed reducing motor (0035), and linear traveling motors (0039) are arranged at the left side and the right side of the upper end of the cross arm upper supporting plate (0038).
7. The power transmission conductor and power transmission conductor splicing sleeve direct current ice melting sliding type short circuit control system according to claim 1, wherein:
the drainage device system (003) comprises a copper braided wire (0043), and the copper braided wire (0043) is connected with a hollow aluminum tube (0030) by a drainage clip (0042).
8. The power transmission conductor and power transmission conductor splicing sleeve dc ice melting sliding type shorting operation system as recited in claim 7, wherein:
the drainage device system (003) further comprises a drainage wire (0045), the drainage wire (0045) is connected with the movable contact system (001) through a drainage wire jointing clamp (0044), and the drainage wire (0045) is connected with the splicing sleeve (0069) through a confluence clamp (0046).
CN202310630521.4A 2023-05-31 2023-05-31 DC ice melting sliding type short circuit control system for power transmission wire and power transmission wire splicing sleeve Active CN116565761B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310630521.4A CN116565761B (en) 2023-05-31 2023-05-31 DC ice melting sliding type short circuit control system for power transmission wire and power transmission wire splicing sleeve

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Application Number Priority Date Filing Date Title
CN202310630521.4A CN116565761B (en) 2023-05-31 2023-05-31 DC ice melting sliding type short circuit control system for power transmission wire and power transmission wire splicing sleeve

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CN116565761B true CN116565761B (en) 2023-12-01

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111509647A (en) * 2020-04-27 2020-08-07 东北电力大学 Automatic short circuit joint control device for direct-current deicing of transmission conductor
CN113328405A (en) * 2021-05-30 2021-08-31 东北电力大学 Full-automatic direct current ice-melt short circuit control device of 220kV transmission line wire
CN115579823A (en) * 2022-09-18 2023-01-06 东北电力大学 Transmission line leads foldable short circuit control system of ground wire direct current ice-melt
CN115621954A (en) * 2022-09-18 2023-01-17 东北电力大学 Sliding folding type short circuit control system for direct-current deicing of ground wire of power transmission line
CN115800163A (en) * 2022-09-18 2023-03-14 东北电力大学 Push-pull type short circuit control system for full-automatic direct current ice melting of ground wire of power transmission line

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111509647A (en) * 2020-04-27 2020-08-07 东北电力大学 Automatic short circuit joint control device for direct-current deicing of transmission conductor
CN113328405A (en) * 2021-05-30 2021-08-31 东北电力大学 Full-automatic direct current ice-melt short circuit control device of 220kV transmission line wire
CN115579823A (en) * 2022-09-18 2023-01-06 东北电力大学 Transmission line leads foldable short circuit control system of ground wire direct current ice-melt
CN115621954A (en) * 2022-09-18 2023-01-17 东北电力大学 Sliding folding type short circuit control system for direct-current deicing of ground wire of power transmission line
CN115800163A (en) * 2022-09-18 2023-03-14 东北电力大学 Push-pull type short circuit control system for full-automatic direct current ice melting of ground wire of power transmission line

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