CN111355208A - Power grid controllable reactance and small resistance composite grounding complete device - Google Patents

Abstract

The invention discloses a power grid controllable reactance and small resistance composite grounding complete device which comprises a cement vertical rod and a top plate, wherein the top of the cement vertical rod is fixedly provided with the top plate, one side of the top plate is fixedly provided with a current transformer, the top of the current transformer is provided with a first lightning protection ball through an insulator, the other side of the top plate is fixedly provided with a lightning arrester, the top of the lightning arrester is fixedly provided with an installation plate, and the installation plate is fixedly provided with a second lightning protection ball corresponding to the first lightning protection ball. The lightning arrester not only ensures the normal discharge operation of the grounding device to the line, but also can absorb lightning impulse waves to discharge firstly, and the lightning protection ball not only can further enhance the lightning protection performance of the device, so that the device can rapidly carry out induction detection on power current, convert primary current with larger value into secondary current with smaller value through a certain transformation ratio, and reduce the resistance of the current.

Description

A power grid controllable reactance and small resistance composite grounding device

technical field

The invention relates to the technical field of grounding devices, in particular to a composite grounding device of a controllable reactance and a small resistance of a power network.

Background technique

Grounding device is also called grounding integration device: the device that forms electrical connection between electrical equipment or other objects and the ground, (building electrical construction technology), the grounding device consists of grounding electrodes (plates), grounding bus bars (indoor, outdoor), It is composed of grounding down-conductor (grounding jumper) and frame grounding.

The disadvantages of the existing grounding devices are:

1. The overall protection of the existing grounding device is still lacking, and it is impossible to better detect and reduce the current shock existing inside and outside, resulting in the device still having protection omission during operation, which reduces the operation performance of the device , narrowing the scope of application of the device;

2. The existing grounding device as a whole is basically a single operation, and it cannot better cooperate with the grounding mechanism to reduce the resistance. As a result, the entire grounding device is easy to operate due to the large resistance during operation. Affected by interference, the overall performance of the grounding device is reduced. For this reason, we propose a composite grounding device with controllable reactance and small resistance of the power grid to solve the existing problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a composite grounding device of a controllable reactance and a small resistance of a power grid, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a composite grounding device of a controllable reactance and a small resistance of a power grid, comprising a cement pole and a roof, the top of the cement pole is fixedly installed with a roof, and the top of the roof is A current transformer is fixedly installed on one side, the top of the current transformer is installed with a first lightning arrester ball through an insulator, the other side of the top of the top plate is fixedly installed with a lightning arrester, and a mounting plate is fixedly installed on the top of the arrester, so The mounting plate is fixedly installed with a second lightning protection ball corresponding to the first lightning protection ball, an outdoor isolating switch is installed on the lightning arrester, a grounding wire is installed on the lightning arrester, and a ground wire is installed in the cement vertical pole, and the cement vertical pole is installed with an outdoor isolation switch. Extended manual switch mechanism.

Preferably, an installation bottom plate is fixedly installed on the bottom of the cement vertical pole, and the installation bottom plate is provided with a matching fastening bolt.

Preferably, the manual switch mechanism and the outdoor isolation switch are butt-installed through a second connection wire, and an insulating handle is provided on the manual switch mechanism.

Preferably, an adapter is fixedly installed on one side of the mounting plate, and the adapter is butt-installed with the outdoor isolation switch through a first connecting wire.

Preferably, the cement pole and the top plate are installed and fixed by a mounting head, and the arrester and the ground wire are fixedly connected by a connecting kit gauge.

Preferably, the second lightning arresting ball and the mounting plate are installed and fixed through a mounting seat, and the insulator and the first lightning arresting ball are butt-installed through a connecting rod.

Compared with the prior art, the beneficial effects of the present invention are:

1. The lightning arrester provided in the present invention not only ensures the normal discharge operation of the grounding device to the line, but also can absorb the lightning shock wave and discharge it first, and safely introduce the lightning current into the ground through a good conductor, and use the grounding device to make the lightning voltage amplitude. It is limited below the lightning shock level of the protected equipment, so that the electrical equipment is protected and the operation performance of the device is improved. stability during operation.

2. The present invention enables the device to quickly sense and detect the power current through the set current transformer, and convert the primary current with a larger value into a secondary current with a smaller value through a certain transformation ratio, thereby reducing the resistance of the current. It not only realizes the protection operation of the grounding device, but also achieves the characteristics of small resistance operation. The manual switch mechanism and the outdoor isolation switch enable the device to better cooperate with the staff, so that the device can realize its own grounding and anti-electric operation, and at the same time, it is convenient to operate. The staff performs manual control to avoid or reduce the situation that the overall electrical structure cannot operate normally due to the failure of the device, and reduce the hidden dangers of the device during operation.

Description of drawings

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

Fig. 2 is the overall structure schematic diagram of the present invention;

FIG. 3 is a schematic diagram of a partial structure of the present invention.

In the picture: 1. Installation bottom plate; 2. Grounding wire; 201. Connection kit; 3. Built-in copper hoop; 4. Cement pole; 401. Mounting head; 5. Top plate; 6. Current transformer; 601. Insulator; 602 , connecting rod; 603, the first lightning arrester; 7, the mounting plate; 701, the second lightning protection ball; 702, the mounting seat; 703, the adapter; 8, the arrester; 9, the first connection line; 10, the second connection line; 11. Manual switch mechanism; 12. Outdoor isolation switch.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, with a specific orientation. The orientation configuration and operation are therefore not to be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" may be a fixed connection It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Please refer to FIGS. 1-3, an embodiment provided by the present invention: a composite grounding device of controllable reactance and small resistance of a power grid, including a cement pole 4 and a top plate 5, the other side of the top of the top plate 5 is connected by bolts The lightning arrester 8 is fixedly installed. The lightning arrester 8 not only ensures the normal discharge operation of the grounding device to the line, but also absorbs the lightning shock wave and discharges it first. The lightning current is safely introduced into the ground through a good conductor. It is limited to be below the lightning impact level of the protected equipment, so that the electrical equipment is protected and the operation performance of the device is improved. The top of the arrester 8 is fixedly installed with a mounting plate 7 through bolts, and the mounting plate 7 is fixedly installed with a corresponding first lightning arrester ball 603. The second lightning protection ball 701, the lightning protection ball can further strengthen the lightning protection performance of the device, and at the same time can monitor and reduce the shock wave of lightning strikes, which improves the stability of the device during operation. An outdoor isolation switch is installed on the lightning arrester 8 12. The arrester 8 is installed with a grounding wire 2 running through the cement pole 4, and an extended manual switch mechanism 11 is installed in the cement pole 4. The manual switch mechanism 11 and the outdoor isolation switch 12 enable the device to better communicate with the staff. The cooperating operation enables the device to realize its own grounding and anti-electricity operation, and at the same time, it is convenient for the staff to perform manual control, avoiding or reducing the situation that the overall electrical structure cannot operate normally due to the failure of the device, and reducing the hidden dangers of the device during operation. The top of the cement pole 4 is fixedly installed with a top plate 5 through a bolt structure, and one side of the top of the top plate 5 is fixedly installed with a current transformer 6 through a bolt joint. The larger primary current is converted into a smaller secondary current through a certain transformation ratio, which reduces the resistance of the current, which not only realizes the protection operation of the grounding device, but also achieves the characteristics of small resistance operation. The top of the current transformer 6 passes through the insulator. 601 is installed with a first lightning protection ball 603 .

Further, the bottom of the cement pole 4 is fixedly installed with an installation base plate 1, and the installation base plate 1 is provided with matching fastening bolts, and the installation base plate 1 makes the cement pole 4 realize the effect of rapid installation and fixation through the fastening bolts, and the work Personnel can install, fix, disassemble and maintain the cement pole 4 according to the actual operation requirements.

Further, the manual switch mechanism 11 and the outdoor isolation switch 12 are butt-installed through the second connection wire 10, and the second connection wire 10 has the effect of receiving electricity, ensuring the energization between the manual switch mechanism 11 and the outdoor isolation switch 12. In operation, the manual switch mechanism 11 is provided with an insulating handle, which further improves the insulating effect of the manual switch mechanism 11 and ensures the stability of the staff during operation.

Further, an adapter 703 is fixedly installed on one side of the mounting plate 7, and the adapter 703 has the effect of undertaking the installation, ensuring the ground connection installation between the wires and the wires, and realizing the effect of electrification. The adapter 703 passes through the first A connecting wire 9 is butt-installed with the outdoor isolation switch 12, and the first connecting wire 9 has the effect of undertaking the installation, ensuring the power connection operation of the device.

Further, the installation head 401 is used to install and fix the cement pole 4 and the top plate 5, and the installation head 401 has the effect of undertaking the installation, ensuring the butt installation between the cement pole 4 and the top plate 5, and at the same time, it is convenient for the staff to disassemble and maintain, The arrester 8 and the grounding wire 2 are fixedly connected by a connection kit 201 , and the connection kit 201 has the effect of receiving and installing between the arrester 8 and the grounding wire 2 .

Further, the second lightning protection ball 701 and the mounting plate 7 are installed and fixed by the mounting seat 702, and the mounting seat 702 ensures the installation and fixation between the second lightning protection ball 701 and the mounting plate 7, and has the effect of undertaking the installation. The first lightning arresting balls 603 are connected to each other through connecting rods 602, and the connecting rods 602 not only have the effect of receiving and installing, but also ensure the normal operation of the device.

Working principle: During the operation, the device is installed and fixed by the fastening bolts on the installation base plate 1, and then the desired power wire is electrically connected to the arrester 8. During operation, the current transformer 6 and the arrester 8 cooperate with each other. The current pulse and the lightning wave are detected, and the existing electric power is grounded and conductive with the grounding wire 2 .

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. A complete set of power grid controllable reactance and small resistance composite grounding device, comprising a cement pole (4) and a top plate (5), characterized in that: a top plate (5) is fixedly installed on the top of the cement pole (4). ), a current transformer (6) is fixedly installed on one side of the top of the top plate (5), and a first lightning arrester ball (603) is installed on the top of the current transformer (6) through an insulator (601). 5) A lightning arrester (8) is fixedly mounted on the other side of the top, a mounting plate (7) is fixedly mounted on the top of the lightning arrester (8), and the mounting plate (7) is fixedly mounted with the first lightning arresting ball (603) The corresponding second lightning arrester ball (701), an outdoor isolation switch (12) is installed on the arrester (8), and the arrester (8) is installed with a ground wire (2) running through the cement pole (4), so An extended manual switch mechanism (11) is installed in the cement pole (4). 2. A power grid controllable reactance and small resistance composite grounding device according to claim 1, characterized in that: the bottom of the cement pole (4) is fixedly installed with an installation base plate (1), and the installation base plate (1) There are matching fastening bolts on it. 3. A power grid controllable reactance and small resistance composite grounding device according to claim 1, characterized in that: a second connection line is used between the manual switch mechanism (11) and the outdoor isolation switch (12). (10) Butt installation, the manual switch mechanism (11) is provided with an insulating handle. 4. A power grid controllable reactance and small resistance composite grounding device according to claim 1, characterized in that: an adapter (703) is fixedly installed on one side of the mounting plate (7), and the adapter The connector (703) is butt-installed with the outdoor isolation switch (12) through the first connecting wire (9). 5. A power grid controllable reactance and small resistance composite grounding device according to claim 1, characterized in that: the cement pole (4) and the top plate (5) are installed through a mounting head (401). Fixing, the lightning arrester (8) and the grounding wire (2) are fixedly connected through the gauge of the connection kit (201). 6. A power grid controllable reactance and small resistance composite grounding device according to claim 1, characterized in that: a mounting seat (702) passes between the second lightning arrester ball (701) and the mounting plate (7). ) is installed and fixed, and the insulator (601) and the first lightning arrester ball (603) are butt-installed through a connecting rod (602).

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