CN108987202B - Automatic isolating device of electric power grid - Google Patents

Abstract

The invention relates to an automatic isolation device for a power grid, which comprises an isolation device body, a power pole and mounting rings, wherein the isolation device body comprises an isolation box, a signal receiver, a signal transmitter, a controller, a rotating motor, a coupler, a connecting piece, an insulating sleeve, a first fixed contact and a movable contact, the lower end of the power pole is fixedly connected with a conical inserted bar, the upper end of the power pole is provided with a circle of groove, the outer side of the groove is provided with two mounting rings, the two ports of the two mounting rings are fixedly connected with connecting blocks, the two connecting blocks are both provided with threaded holes, one side of each threaded hole is provided with a fixed bolt, the fixed bolt is in threaded connection with the two connecting blocks through the threaded holes, the two mounting rings are spliced to form a circular ring, the inner diameter of the circular ring is equal to the outer diameter of the groove on the power pole, thereby improving the overall adjustment efficiency of the device.

Description

A grid automation isolation device

technical field

The invention relates to the technical field of isolation equipment, in particular to an automatic isolation device for a power grid.

Background technique

In the new century, the status and role of smart grid in the distribution system are becoming more and more important, and it is an important part of the distribution system. In the power system, the realization of the smart grid is to improve the reliability of the power supply system, improve the economic benefits of the power grid operation and promote the operation efficiency, so as to realize the optimization and rational operation of the distribution network. At present, when it comes to smart grid, people first think of distribution network automation system. As a key link of the current smart grid and grid automation system, feeder automation has received widespread attention. However, due to the immature technology in this area in my country, there are still many shortcomings and hidden dangers. This paper analyzes and discusses the automatic finding and isolation of distribution network faults for reference in the work of peers.

The traditional power grid isolation device is cumbersome in the process of realizing automatic adjustment, and the adjustment process of fault handling and reclosing control is slow, resulting in unnecessary losses.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic power grid isolation device in order to solve the above problems, which solves the problem that the existing power grid isolation device is cumbersome in the automatic adjustment process, and the adjustment of fault processing and reclosing control is slow, resulting in unnecessary loss problem.

In order to solve the above problems, the present invention provides a technical solution: a power grid automation isolation device, comprising an isolation device body, a utility pole and a mounting ring, and the isolation device body includes an isolation box, a signal receiver, a signal transmitter, a control device, rotating motor, coupling, connecting piece, insulating sleeve, first fixed contact and moving contact, the lower end of the utility pole is fixedly connected to the conical insertion rod, and the upper end of the utility pole is provided with a circle of grooves, so There are two mounting rings on the outside of the groove, and the two ports of the two mounting rings are fixedly connected to the connecting block. The bolts are threadedly connected with the two connecting blocks through the threaded holes, and the two mounting rings are spliced together to form a circular ring. The upper ends of the two bases are fixedly installed with isolation boxes, both sides of the two isolation boxes are provided with drainage grooves, and the interior of the isolation boxes are sequentially fixedly installed with a first mounting plate and a second mounting plate from top to bottom. A signal receiver is fixedly installed at the upper end of the first installation plate, a signal transmitter is fixedly installed on the first installation plate at one end of the signal receiver, and a controller is fixedly installed at the center of the upper end of the first installation plate.

Preferably, a rotating electrical machine is fixedly mounted on the upper end of the second mounting plate, the rotating electrical machine is mounted on the center position of the upper end of the second mounting plate, and the lower end of the rotating electrical machine is inserted through the second mounting plate, and the lower end of the second mounting plate is inserted into the second mounting plate. A protective casing is fixedly installed, a coupling is installed on the upper end surface of the inner cavity of the protective casing, the output end of the rotating motor is connected to the coupling through the rotation of the drive shaft, and the lower end of the coupling is provided with a connecting piece, and the connecting There is a circular groove in the middle of the piece, the output end of the coupling is rotatably connected to the driving shaft, the lower end of the driving shaft is fixedly connected to the connecting piece through the circular groove, and the central position of the lower end of the connecting piece is fixedly connected to the rotating shaft, and the connecting piece The lower end is located at the center of the upper end face of the base, and a fixing block is fixedly installed. The fixing block is internally provided with an empty groove, and the lower end of the rotating shaft is designed to fit with the empty groove. Four insulating sleeves are fixedly installed on the upper end of the base, the four insulating sleeves are distributed in a cross shape, and the upper ends of the four insulating sleeves are respectively fixed with a first fixed contact, a second fixed contact, The third fixed contact and the fourth fixed contact, the first fixed contact, the second fixed contact, the third fixed contact and the fourth fixed contact are provided with moving contacts on one side, and the connecting piece The four sides are respectively fixedly connected with the moving contacts through the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod, and the four moving contacts are respectively connected with the first fixed contact, the second fixed contact, The third fixed contact and the fourth fixed contact are slidably connected.

Preferably, the lower ends of the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are fixedly connected to the annular chute, the upper end of the base is fixedly installed with an annular sliding block, the first connecting rod, The second connecting rod, the third connecting rod and the fourth connecting rod are slidably connected with the annular slider through the annular sliding groove. Two wiring holes are provided on one side of the base, and the two wiring holes are about the longitudinal centerline of the base. Symmetrically distributed, the upper end of the connecting piece is provided with two secondary longitudinal lines and two secondary transverse lines, and the upper ends of the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are respectively fixed and installed with a Line No. 1, Line 2, Line 3 and Line 4, the two ports of the two longitudinal lines are connected to Line 1 and Line 3 respectively. The horizontal line is connected with the No. 2 primary line and the No. 4 primary line respectively, and one end of the No. 1 primary line, the No. 2 primary line, the No. 3 primary line and the No. 4 primary line are respectively connected with the moving contact A main line is arranged in the two wiring holes, and one end of the main line is respectively connected to the first fixed contact, the second fixed contact, the third fixed contact and the fourth fixed contact through the insulating sleeve.

Preferably, the model of the signal receiver is DMX512 wireless signal receiver, and the model of the signal transmitter is KYL-320M signal transmitter.

Preferably, the controller model is STC89C52 microcontroller.

Preferably, the controller is electrically connected to the signal receiver, the signal transmitter and the rotating electrical machine, respectively.

Preferably, the insulating sleeve, the annular sliding block and the annular sliding groove are all made of ceramic materials.

The beneficial effects of the present invention are:

The invention relates to a grid automation isolation device, which has the characteristics of rapid adjustment. In concrete use, compared with the traditional grid automation isolation device, the device adopts four fixed contacts and four movable contacts. Rapid circuit replacement is achieved through the contact between the fixed contact and the moving contact, thereby improving the overall adjustment efficiency of the device.

Description of drawings:

For ease of description, the present invention is described in detail by the following specific implementations and accompanying drawings.

Fig. 1 is the overall structure schematic diagram of the present invention;

2 is a schematic diagram of the internal structure of the isolation box of the present invention;

FIG. 3 is a schematic top view structure diagram of the connector of the present invention;

4 is a schematic diagram of the enlarged structure A of the present invention;

FIG. 5 is a schematic structural diagram of a control module of the present invention.

In the figure: 1. Isolation device body; 2. Electric pole; 3. Inserting rod; 4. Groove; 5. Mounting ring; 6. Connecting block; 7. Fixing bolt; 8. Base; 9. Isolation box; 10 , drain tank; 11, signal receiver; 12, signal transmitter; 13, first mounting plate; 14, second mounting plate; 15, controller; 16, rotating motor; 17, protective casing; 18, coupling ; 19, drive shaft; 20, drive shaft; 21, first connecting rod; 22, second connecting rod; 23, connecting piece; 24, fixing block; 25, rotating shaft; 26, annular slider; 27, annular slide slot; 28, wiring hole; 29, insulating sleeve; 30, first fixed contact; 31, movable contact; 32, second fixed contact; 33, third fixed contact; 34, fourth fixed contact ;35, secondary longitudinal line; 36, secondary horizontal line; 37, third connecting rod; 38, fourth connecting rod; 39, No. Class line; 42, No. 4 class line.

Detailed ways:

As shown in Figures 1-5, this specific embodiment adopts the following technical solutions: a power grid automation isolation device, comprising an isolation device body 1, a utility pole 2 and a mounting ring 5, the isolation device body 1 includes an isolation box 9, a signal The receiver 11, the signal transmitter 12, the controller 15, the rotary motor 16, the coupling 18, the connecting piece 23, the insulating sleeve 29, the first fixed contact 30 and the movable contact 31, the lower end of the utility pole 2 is fixed Connecting the conical insertion rod 3, the upper end of the utility pole 2 is provided with a groove 4, and the outer side of the groove 4 is provided with two mounting rings 5, and the two ports of the two mounting rings 5 are fixedly connected to the connecting block 6. , the two connecting blocks 6 are provided with threaded holes, and one side of the threaded holes is provided with a fixing bolt 7, the fixing bolt 7 is threadedly connected with the two connecting blocks 6 through the threaded holes, and the two mounting rings 5 are spliced together to form Ring, the inner diameter of the ring is equal to the outer diameter of the groove 4 on the utility pole 2, two sides of the mounting rings 5 are fixedly connected to the base 8, and the upper ends of the two bases 8 are fixedly installed with an isolation box 9 , the two isolation boxes 9 are provided with drainage grooves 10 on both sides, and the first mounting plate 13 and the second mounting plate 14 are fixedly installed inside the isolation box 9 in order from top to bottom. The first mounting plate 13 A signal receiver 11 is fixedly mounted on the upper end, a signal transmitter 12 is fixedly mounted on a first mounting plate 13 at one end of the signal receiver 11 , and a controller 15 is fixedly mounted at the center of the upper end of the first mounting plate 13 .

The rotating motor 16 is fixedly installed on the upper end of the second mounting plate 14, the rotating motor 16 is installed at the center position of the upper end of the second mounting plate 14, and the lower end of the rotating motor 16 is inserted through the second mounting plate 14. A protective casing 17 is fixedly mounted on the lower end of the second mounting plate 14 , and a coupling 18 is mounted on the upper end surface of the inner cavity of the protective casing 17 . The lower end of the coupling 18 is provided with a connecting piece 23, the middle of the connecting piece 23 is provided with a circular groove, the output end of the coupling 18 is rotatably connected to the driving shaft 20, and the lower end of the driving shaft 20 passes through the circular groove and the connecting piece 23 Fixed connection, the central position of the lower end of the connecting piece 23 is fixedly connected to the rotating shaft 25, the lower end of the connecting piece 23 is fixedly installed at the central position of the upper end face of the base 8, and a fixing block 24 is fixedly installed. The lower end of the rotating shaft 25 is designed to be matched with the empty groove, the connecting piece 23 is rotatably connected to the fixed block 24 through the rotating shaft 25, and four insulating sleeves 29 are fixedly installed on the upper end of the base 8. The four insulating sleeves are 29 are distributed in a cross shape, and the upper ends of the four insulating sleeves 29 are respectively fixed with a first fixed contact 30, a second fixed contact 32, a third fixed contact 33 and a fourth fixed contact 34, so The first fixed contact 30 , the second fixed contact 32 , the third fixed contact 33 and the fourth fixed contact 34 are all provided with movable contacts 31 on one side, and the connecting member 23 is surrounded by a first connecting rod respectively. 21. The second connecting rod 22, the third connecting rod 37 and the fourth connecting rod 38 are fixedly connected with the moving contacts 31, and the four moving contacts 31 are respectively connected with the first fixed contacts 30 and the second fixed contacts 32 , The third fixed contact 33 and the fourth fixed contact 34 are slidably connected, and the lower ends of the first connecting rod 21, the second connecting rod 22, the third connecting rod 37 and the fourth connecting rod 38 are fixedly connected to the annular chute 27, An annular slider 26 is fixedly installed on the upper end of the base 8 , and the first connecting rod 21 , the second connecting rod 22 , the third connecting rod 37 and the fourth connecting rod 38 slide with the annular slider 26 through the annular sliding groove 27 For connection, two wiring holes 28 are provided on one side of the base 8, and the two wiring holes 28 are distributed axially symmetrically about the longitudinal centerline of the base 8. The upper end of the connecting piece 23 is provided with two secondary longitudinal lines 35 and Two secondary horizontal lines 36, the upper ends of the first connecting rod 21, the second connecting rod 22, the third connecting rod 37 and the fourth connecting rod 38 are respectively fixed with a No. 1 primary wire 39 and a No. 2 primary wire 40. , No. 3 primary line 41 and No. 4 primary line 42, the two ports of the two secondary longitudinal lines 35 are respectively connected with the No. 1 primary line 39 and the No. 3 primary line 41, and the two secondary horizontal lines 36 are respectively It is connected with the No. 2 primary wire 40 and the No. 4 primary wire 42, and one end of the No. 1 primary wire 39, the No. 2 primary wire 40, the No. 3 primary wire 41 and the No. The head 31 is connected, the two wiring holes 28 are arranged with a main line, and one end of the main line passes through the insulating sleeve 29 and is respectively connected to the first fixed contact 30 , the second fixed contact 32, the third fixed contact 33 and the fourth fixed contact 34 are connected, the signal receiver 11 is a DMX512 wireless signal receiver, and the signal transmitter 12 is a KYL-320M signal transmitter The controller 15 is a STC89C52 microcontroller, the controller 15 is electrically connected to the signal receiver 11, the signal transmitter 12 and the rotating motor 16, respectively, the insulating sleeve 29, the annular slider 26 And the annular chute 27 is made of ceramic material.

The use state of the present invention is as follows: the present invention relates to a power grid automation isolation device, which has the characteristics of rapid adjustment. First, the two mounting rings 5 are fixed in the groove 4, and then the insertion rod 3 is inserted into the ground to fix the utility pole 2. , receive part of the circuit fault information from the host side through the signal receiver 11, and transmit the fault information to the controller 15, the controller 15 starts the rotating motor 16, drives the input end of the coupling 18 to rotate through the drive shaft 19, and passes the coupling shaft. The output end of the actuator 18 drives the driving shaft 20 to rotate, thereby driving the connecting piece 23, which in turn drives the first connecting rod 21, the second connecting rod 22, the third connecting rod 37 and the fourth connecting rod 38 to rotate, and the first connecting rod 21, The moving contacts 31 at one end of the second connecting rod 22 , the third connecting rod 37 and the fourth connecting rod 38 rotate. When one of the lines fails, the moving contact 31 and the four fixed contacts are realized by the rotation of the connecting piece 23 . Head replacement, so as to quickly replace the new connection line and reduce losses.

The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only for illustrating the present invention. principle, without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, these changes and improvements all fall within the scope of the claimed invention, and the claimed scope of the present invention is determined by the appended rights Requirements and their equivalents are defined.

Claims (5)

1. A power grid automation isolation device, comprising an isolation device body (1), a utility pole (2) and a mounting ring (5), characterized in that the isolation device body (1) comprises an isolation box (9), a signal receiving device (11), signal transmitter (12), controller (15), rotating electrical machine (16), coupling (18), connecting piece (23), insulating sleeve (29), first fixed contact ( 30) and the moving contact (31), the lower end of the utility pole (2) is fixedly connected to the conical insertion rod (3), the upper end of the utility pole (2) is provided with a circle of grooves (4), the groove ( 4) Two mounting rings (5) are provided on the outer side, and the two ports of the two mounting rings (5) are fixedly connected to the connecting block (6), and the two connecting blocks (6) are provided with threaded holes. One side of the hole is provided with a fixing bolt (7), the fixing bolt (7) is threadedly connected with the two connecting blocks (6) through the threaded hole, and the two mounting rings (5) are spliced together to form a ring, and the inner diameter of the ring is Equal to the outer diameter of the groove (4) on the utility pole (2), one side of the two mounting rings (5) is fixedly connected to the base (8), and the upper ends of the two bases (8) are fixedly installed with Isolation boxes (9), both sides of the two isolation boxes (9) are provided with drainage grooves (10), and a first mounting plate (13) and a first mounting plate (13) and a first mounting plate (13) and A second mounting plate (14), a signal receiver (11) is fixedly mounted on the upper end of the first mounting plate (13), and a signal is fixedly mounted on the first mounting plate (13) at one end of the signal receiver (11) a transmitter (12), a controller (15) is fixedly mounted at the center of the upper end of the first mounting plate (13); A rotating electrical machine (16) is fixedly mounted on the upper end of the second mounting plate (14), the rotating electrical machine (16) is mounted at the center position of the upper end of the second mounting plate (14), and the lower end of the rotating electrical machine (16) is inserted through A second mounting plate (14), a protective casing (17) is fixedly mounted on the lower end of the second mounting plate (14), and a coupling (18) is mounted on the upper end surface of the inner cavity of the protective casing (17). The output end of the rotary motor (16) is rotatably connected to a coupling (18) through a drive shaft (19), the lower end of the coupling (18) is provided with a connecting piece (23), and the middle of the connecting piece (23) is provided with a circular A groove, the output end of the coupling (18) is rotatably connected to the driving shaft (20), the lower end of the driving shaft (20) is fixedly connected to the connecting piece (23) through the circular groove, and the center of the lower end of the connecting piece (23) The rotating shaft (25) is fixedly connected in position, the lower end of the connecting piece (23) is located at the center of the upper end face of the base (8), and a fixing block (24) is fixedly installed. The lower end of the rotating shaft (25) is designed to be matched with the empty groove, the connecting piece (23) is rotatably connected with the fixing block (24) through the rotating shaft (25), and four insulating sleeves are fixedly installed on the upper end of the base (8). A cylinder (29), the four insulating sleeves (29) are distributed in a cross shape, and the upper ends of the four insulating sleeves (29) are respectively fixed with a first fixed contact (30) and a second fixed contact head (32), a third fixed contact (33) and a fourth fixed contact (34), the first fixed contact (30), the second fixed contact (32), the third fixed contact (33) ) and the fourth fixed contact (34) are provided with moving contacts (31) on one side, and the connecting piece (23) is surrounded by a first connecting rod (21), a second connecting rod (22), a third connecting rod (22), and a third connecting rod (23). The connecting rod (37) and the fourth connecting rod (38) are fixedly connected with the moving contacts (31), and the four moving contacts (31) are respectively connected with the first fixed contact (30) and the second fixed contact (31). 32), the third fixed contact (33) and the fourth fixed contact (34) are slidably connected; The lower ends of the first connecting rod (21), the second connecting rod (22), the third connecting rod (37) and the fourth connecting rod (38) are fixedly connected to the annular chute (27), and the base (8) An annular slider (26) is fixedly installed on the upper end, and the first connecting rod (21), the second connecting rod (22), the third connecting rod (37) and the fourth connecting rod (38) pass through the annular chute (27) ) is slidably connected to the annular slider (26), two wiring holes (28) are provided on one side of the base (8), and the two wiring holes (28) are symmetrically distributed about the longitudinal centerline of the base (8). , the upper end of the connecting piece (23) is provided with two secondary longitudinal lines (35) and two secondary transverse lines (36), the first connecting rod (21), the second connecting rod (22), the second The upper ends of the third connecting rod (37) and the fourth connecting rod (38) are respectively fixed with No. 1 primary wire (39), No. 2 primary wire (40), No. 3 primary wire (41) and No. 4 primary wire (42), the two ports of the two secondary longitudinal lines (35) are respectively connected with the No. 1 primary line (39) and the third primary line (41), and the two secondary horizontal lines (36) are respectively connected with the No. The first-grade line (40) and the fourth-grade first-grade wire (42) are connected, and the first-grade wire (39), the second-grade first-grade wire (40), the third-grade first-grade wire (41) and the fourth-grade first-grade wire are connected One end of the wire (42) is respectively connected with the movable contact (31), the two wiring holes (28) are arranged with a main wire, and one end of the main wire passes through the insulating sleeve (29) and is respectively connected with the first fixed contact (30), The second fixed contact (32), the third fixed contact (33) and the fourth fixed contact (34) are connected. 2. A power grid automation isolation device according to claim 1, characterized in that: the signal receiver (11) model is DMX512 wireless signal receiver, and the signal transmitter (12) model is KYL-320M signal launcher. 3 . The power grid automation isolation device according to claim 1 , wherein the controller ( 15 ) is a STC89C52 microcontroller. 4 . 4 . The power grid automation isolation device according to claim 1 , wherein the controller ( 15 ) is electrically connected to the signal receiver ( 11 ), the signal transmitter ( 12 ) and the rotating electrical machine ( 16 ) respectively. 5 . connect. 5 . The power grid automation isolation device according to claim 1 , wherein the insulating sleeve ( 29 ), the annular slider ( 26 ) and the annular chute ( 27 ) are all made of ceramic materials. 6 .

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