CN105186434A - Multifunctional intelligent comprehensive lightning protection system for distribution network - Google Patents

Abstract

The invention provides a multi-functional intelligent distribution network comprehensive lightning protection system, including a substation, an overvoltage isolator, a power transmission line, a pole tower, a wire clamp, a wave resistance lightning rod, a grounding device, a fault diagnosis device, a signal transceiver device, a monitoring server, Move the operating terminal and the insulating cross arm, the overvoltage isolator is connected in series with the substation through the power transmission line; the wave resistance lightning rod is installed on the top of the tower; the grounding device is installed at the bottom of the tower; Insulated cross arm on the upper part of the tower. The arrangement of the wave resistance lightning rod, the fault diagnosis device and the mobile operating terminal of the present invention improves the intelligent level of lightning protection, reduces the difficulty of troubleshooting, facilitates maintenance, reduces workload, improves lightning protection effect, reduces the risk of lightning strike, and is convenient for popularization and use.

Description

A Multifunctional Intelligent Distribution Network Comprehensive Lightning Protection System

technical field

The invention belongs to the technical field of electric lightning protection systems, and in particular relates to a multifunctional intelligent distribution network comprehensive lightning protection system.

Background technique

Lightning is a discharge phenomenon of the earth's atmosphere. Usually, when the electric field strength between the negatively charged thundercloud and the earth exceeds the breakdown strength of the atmosphere, a pulse discharge between the thundercloud and the earth occurs, which is what people call lightning strike. During the thundercloud discharge process, the discharge current increases sharply. At the moment when the lightning reaches the ground, the lightning current reaches tens of thousands, even hundreds of thousand amperes. The potential difference between the two ends of the lightning channel can reach hundreds of thousands of volts. Wherever it goes, it will cause strong electromagnetic, thermal and mechanical destructive effects. The cross-arms, insulators, and grounding wires in the existing distribution network lines are all important factors leading to the low insulation level of the line. Due to the limitation of its structure, measures such as adding insulator sheets, adding lightning arresters, and installing overhead ground wires are all important factors. The line insulation level exceeding 40KA of ground lightning current cannot be ensured.

The Chinese patent publication number is CN104518475A, and the name of the invention is a comprehensive lightning protection system for distribution network, which includes a substation and a transmission line drawn from the three-phase outbound port of the transformer of the substation, and an overvoltage isolation is connected in series on each phase line. From the output end of the voltage isolator to the tower, it becomes an overhead line. The overhead line is supported by the insulating cross-arm of the tower, and the transmission line is fixed by the multi-functional clamp on the insulating cross-arm. A wave resistance lightning rod is installed on the top of the tower. , A simple and fast grounding device is buried underground at the bottom of the tower. Realize the comprehensive lightning protection for distribution network lines and substations with the tower protection as the center and the prevention of lightning tripping and disconnection of the distribution network as the focus. The system organically integrates special lightning protection equipment for distribution network lines such as wave resistance lightning rods, insulating crossarms, multi-functional clamps, and simple grounding devices to build and realize a multi-level, three-dimensional comprehensive lightning protection system, which can greatly reduce the lightning tripping rate , disconnection rate, to achieve the maximum match between the economy and effectiveness of lightning protection in the distribution network, but the existing technology has low intelligence in lightning protection, difficult troubleshooting, inconvenient maintenance, heavy workload, and poor reliability of lightning protection. There is a problem with the risk of lightning strikes.

Therefore, it is very necessary to invent a multifunctional intelligent distribution network integrated lightning protection system.

Contents of the invention

In order to solve the above technical problems, the present invention provides a multi-functional intelligent distribution network integrated lightning protection system to solve the problems existing in the prior art, such as low level of lightning protection intelligence, difficult troubleshooting, inconvenient maintenance, heavy workload, and Lightning reliability is poor, there is a risk of lightning strikes, including substations, overvoltage isolators, power transmission lines, pole towers, line clips, wave resistance lightning rods, grounding devices, fault diagnosis devices, signal transceiver devices, monitoring servers, mobile operation terminals and insulation horizontal The overvoltage isolator is connected in series with the substation through the power transmission line; the wave resistance lightning rod is installed at the top of the tower; the grounding device is installed at the lower part of the tower; The insulating cross arm; the fault diagnosis device is connected with the monitoring server through the signal transceiver device; the mobile operation terminal is connected with the signal transceiver device through the wireless signal.

The fault diagnosis device includes a photovoltaic panel, a warning light, a battery, a display screen, a safety cover, a fault monitoring chip, a GPS positioning chip, a built-in antenna and a support plate, and the photovoltaic panel is fixed on the fault diagnosis device through the support plate. top; the alarm light is embedded in the upper part of the fault diagnosis device; the battery is fixed inside the fault diagnosis device; the display screen is embedded in the safety protection cover; the fault monitoring chip is fixed on the display screen The lower part; the outside of the GPS positioning chip is inlaid with a built-in antenna.

The fault monitoring chip is connected with the wave resistance lightning rod through wires, which is beneficial to monitor the wave resistance lightning rod 6, facilitates timely maintenance, improves the lightning protection effect, thereby improving the degree of intelligence, and facilitates timely and accurate monitoring and maintenance.

The GPS positioning chip transmits wireless signals through the built-in antenna, and the monitoring server receives the position information of the GPS positioning chip, thereby improving maintenance efficiency and reducing workload.

The overvoltage isolator adopts a low-pass filter with an equivalent inductance of 100-30μН and an equivalent capacitance of 80-260pF, which is conducive to improving the lightning protection effect and protecting the distribution network from lightning strikes.

The wire clip is a gap discharge wire clip made of zinc oxide valve sheet; the wire clip fixes the power transmission wire on the insulating cross arm, which is beneficial to avoid short circuit caused by lightning strike and strengthen protection.

The wave resistance lightning rod adopts an RLC series circuit board composed of an inductance coil and a magnet ring, which is conducive to improving the reliability of lightning protection and reducing the risk of lightning strikes.

The insulating cross arm adopts I-shaped glass fiber boards with a width of 4 cm to 10 cm, which has good insulation performance, aging resistance, and is beneficial to prolonging the service life.

The mobile operation terminal adopts a quad-core smart phone; the mobile operation terminal is connected to the monitoring server through the Internet, which is conducive to obtaining technical support in time and reducing the difficulty of maintenance.

Compared with the prior art, the present invention has the following beneficial effects: the multifunctional intelligent distribution network integrated lightning protection system of the present invention is widely used in the technical field of electric power lightning protection systems. Simultaneously, the beneficial effects of the present invention are:

1. The arrangement of the fault monitoring chip and the GPS positioning chip of the present invention is conducive to monitoring the wave resistance lightning rod, facilitating timely maintenance, improving the lightning protection effect, thereby improving the degree of intelligence, and facilitating timely and accurate monitoring and maintenance.

2. The arrangement of the overvoltage isolator and the wave resistance lightning rod of the present invention is beneficial to improve the lightning protection effect and protect the distribution network from lightning strikes.

3. The setting of the mobile operating terminal of the present invention is beneficial to obtain technical support in time and reduce the difficulty of maintenance.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic diagram of the fault diagnosis device of the present invention.

In the picture:

1-substation, 2-overvoltage isolator, 3-power transmission line, 4-tower, 5-clamp, 6-wave impedance lightning rod, 7-grounding device, 8-fault diagnosis device, 81-photovoltaic panel, 82-alarm Light, 83-battery, 84-display screen, 85-safety protection cover, 86-fault monitoring chip, 87-GPS positioning chip, 88-built-in antenna, 89-support board, 9-signal transceiver, 10-monitoring server, 11-movable operation end, 12-insulation cross arm.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

Example:

As shown in Figure 1 to Figure 2

The present invention provides a multi-functional intelligent distribution network comprehensive lightning protection system, including a substation 1, an overvoltage isolator 2, a power transmission line 3, a pole tower 4, a wire clamp 5, a wave resistance lightning rod 6, a grounding device 7, and a fault diagnosis device 8 , a signal transceiving device 9, a monitoring server 10, a mobile operation terminal 11 and an insulating cross arm 12, the overvoltage isolator 2 is connected in series with the substation 1 through the power transmission line 3; the wave resistance lightning rod 6 is installed on the top of the pole tower 4; The grounding device 7 is installed on the lower part of the tower 4; the clamp 5 fixes the power transmission line 3 on the insulating cross-arm 12 on the upper part of the tower 4; the fault diagnosis device 8 is connected to the monitoring server 10 through the signal transceiver 9 ; The mobile operating terminal 11 is connected to the signal transceiving device 9 through a wireless signal.

The fault diagnosis device 8 includes a photovoltaic panel 81, a warning light 82, a battery 83, a display screen 84, a safety cover 85, a fault monitoring chip 86, a GPS positioning chip 87, a built-in antenna 88 and a support plate 89. The board 81 is fixed on the top of the fault diagnosis device 8 through a support plate 89; the alarm lamp 82 is embedded in the upper part of the fault diagnosis device 8; the battery 83 is fixed inside the fault diagnosis device 8; the display screen 84 Embedded in the inside of the safety protection cover 85; the fault monitoring chip 86 is fixed on the lower part of the display screen 84; the outside of the GPS positioning chip 87 is embedded with a built-in antenna 88.

The fault monitoring chip 86 is connected with the wave resistance lightning rod 6 through wires, which is beneficial to monitor the wave resistance lightning rod 6, facilitates timely maintenance, improves the lightning protection effect, thereby improving the degree of intelligence, and facilitates timely and accurate monitoring and maintenance.

The GPS positioning chip 87 transmits wireless signals through the built-in antenna 88, and the monitoring server 10 receives the position information of the GPS positioning chip 87, thereby improving maintenance efficiency and reducing workload.

The overvoltage isolator 2 adopts a low-pass filter with an equivalent inductance of 100-30μН and an equivalent capacitance of 80-260pF, which is conducive to improving the lightning protection effect and protecting the distribution network from lightning strikes.

The wire clip 5 is a gap discharge wire clip made of zinc oxide valve sheet; the wire clip 5 fixes the power transmission line 3 on the insulating cross arm 12, which is beneficial to avoid short circuit caused by lightning strike and strengthen protection.

The wave resistance lightning rod 6 adopts an RLC series circuit board composed of an inductance coil and a magnet ring, which is conducive to improving the reliability of lightning protection and reducing the risk of lightning strikes.

The insulating cross-arm 12 adopts an I-shaped glass fiber board with a width of 4 cm to 10 cm, which has good insulation and aging resistance, and is beneficial to improve the service life.

The mobile operation terminal 11 adopts a quad-core smart phone; the mobile operation terminal 11 is connected to the monitoring server 10 through the Internet, which is conducive to obtaining technical support in time and reducing the difficulty of maintenance.

working principle

In the present invention, when the fault diagnosis device 8 detects that the wave resistance lightning rod 6 is faulty through the fault monitoring chip 86, the fault information is sent to the signal transceiver device 9 through the built-in antenna 88, and after being analyzed and processed by the monitoring server 10, the fault information is forwarded to the operator The mobile operating terminal 11 in the hand improves the level of intelligence, facilitates timely maintenance, improves the lightning protection effect at the same time, and prevents the distribution network from being struck by lightning.

Utilize the technical solution described in the present invention, or those skilled in the art design a similar technical solution under the inspiration of the technical solution of the present invention, and achieve the above-mentioned technical effect, all fall into the protection scope of the present invention.

Claims (9)

1. A multifunctional intelligent distribution network comprehensive lightning protection system, characterized in that the multifunctional intelligent distribution network comprehensive lightning protection system includes a substation (1), an overvoltage isolator (2), a power transmission line (3), Tower (4), wire clamp (5), wave resistance lightning rod (6), grounding device (7), fault diagnosis device (8), signal transceiver device (9), monitoring server (10), mobile operation terminal (11) and insulating cross arm (12), the overvoltage isolator (2) is connected in series with the substation (1) through the power transmission line (3); the wave resistance lightning rod (6) is installed on the top of the tower (4); the The grounding device (7) is installed on the lower part of the tower (4); the clamp (5) fixes the power transmission line (3) on the insulating cross-arm (12) on the upper part of the tower (4); the fault diagnosis device ( 8) Connected to the monitoring server (10) through the signal transceiving device (9); the mobile operation terminal (11) is connected to the signal transceiving device (9) through wireless signals. 2. The multifunctional intelligent distribution network comprehensive lightning protection system according to claim 1, characterized in that, the fault diagnosis device (8) includes a photovoltaic panel (81), a warning light (82), a battery (83) , a display screen (84), a safety protection cover (85), a fault monitoring chip (86), a GPS positioning chip (87), a built-in antenna (88) and a support plate (89), and the photovoltaic panel (81) passes through the support plate The board (89) is fixed on the top of the fault diagnosis device (8); the alarm lamp (82) is embedded in the upper part of the fault diagnosis device (8); the battery (83) is fixed on the top of the fault diagnosis device (8) Inside; the display screen (84) is inlaid inside the safety protection cover (85); the fault monitoring chip (86) is fixed on the lower part of the display screen (84); the outside of the GPS positioning chip (87) Embedded internal antenna (88). 3. The multifunctional intelligent distribution network comprehensive lightning protection system according to claim 2, characterized in that, the fault monitoring chip (86) is connected to the wave resistance lightning rod (6) through a wire. 4. The multifunctional intelligent distribution network integrated lightning protection system according to claim 2, characterized in that, the GPS positioning chip (87) transmits wireless signals through a built-in antenna (88). 5. The multi-functional intelligent distribution network integrated lightning protection system according to claim 1, characterized in that, the overvoltage isolator (2) adopts a low pass filter. 6. The multi-functional intelligent distribution network comprehensive lightning protection system according to claim 1, characterized in that, the wire clip (5) is a gap discharge wire clip made of zinc oxide valve; the wire clip (5) Fix the power transmission line (3) to the insulating cross arm (12). 7. The multi-functional intelligent distribution network integrated lightning protection system according to claim 1, characterized in that, the wave resistance lightning rod (6) adopts an RLC series circuit board composed of an inductance coil and a magnet ring. 8. The multi-functional intelligent distribution network comprehensive lightning protection system according to claim 1, characterized in that the insulating cross arm (12) is made of I-shaped glass fiber board with a width of 4 cm to 10 cm. 9. The multi-functional intelligent distribution network comprehensive lightning protection system according to claim 1, characterized in that, the mobile operation terminal (11) adopts a quad-core smart phone; the mobile operation terminal (11) uses the Internet Link with monitoring server (10).