CN114361952A - Device and method capable of acquiring hanging and dismounting states of grounding wire in real time - Google Patents

Abstract

The invention belongs to the technical field of industry, and particularly relates to a device and a method capable of acquiring hanging and dismounting states of a grounding wire in real time. The invention installs a novel fixed grounding pile, and installs a travel switch on the fixed grounding pile, and a normally open contact of the travel switch is sent into an on-site LCU access module. The device has the characteristics of simple design, attractive appearance and practical function. The device does not change the position of a primary electrical equipment suspension grounding wire and does not have adverse effect on operation. The device signal passes through hard-wired mode access local LCU, satisfies electric power monitoring system safety protection work requirement to the vulnerable part is general, is convenient for maintain.

Description

Device and method capable of acquiring hanging and dismounting states of grounding wire in real time

Technical Field

The invention belongs to the technical field of power industry, and particularly relates to a device and a method capable of acquiring hanging and dismounting states of a grounding wire in real time.

Background

At present, the power industry requires that the hanging and dismounting states of the grounding wire are suitable for real-time acquisition and monitoring. Because the grounding wire hung on the primary electrical equipment is temporary and no related signal is sent to the monitoring system, the monitoring system generally does not have the function of collecting the hanging and dismantling states of the grounding wire in real time.

Accordingly, those skilled in the art have been constantly developing to address the above problems.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a device and a method for acquiring the hanging and dismantling states of a grounding wire in real time. The invention aims to realize the invention aims that the structure is simple, the operation and the use are convenient, the safety and the practicability are realized, the monitoring system can monitor the primary electrical equipment suspension grounding wire in real time in the first time, and the working efficiency can be greatly improved.

In order to achieve the above object, the present invention is achieved by the following technical solutions:

the device for preventing the primary electrical equipment with the grounding wire from closing the circuit breaker and the isolating switch comprises a travel switch and a fixed grounding pile; a plurality of through holes are formed in the fixed grounding pile; the contact of the travel switch on the travel switch is inserted into the through hole on the fixed grounding pile, and an adhesive layer is arranged on the contact surface of the travel switch and the fixed grounding pile; and a normally open contact line on a signal line of the travel switch is connected with an on-site LCU (local control unit) opening module, and a monitoring system displays that the primary electrical equipment is not hung with a grounding wire.

Furthermore, the through holes are provided with two through holes, including a first hole and a second hole.

Furthermore, the through hole is a round hole, and the diameter of the round hole is matched with that of a contact of the travel switch on the travel switch, so that the contact of the travel switch is just arranged in the through hole and passes through the through hole.

Furthermore, the adhesive layer is formed by daubing strong adhesive.

Furthermore, the fixed grounding pile is in a shape of a right-angle plate, one side of the fixed grounding pile is longer than the other side of the fixed grounding pile, two through holes are formed in the surface of the longer side of the fixed grounding pile, and the through holes can also be square or prismatic through holes.

Furthermore, the fixed grounding pile is made of copper.

The method for preventing the primary electrical equipment with the grounding wire from closing the circuit breaker and the isolating switch comprises the following operation steps:

step 1, dismounting a locking nut of a grounding end of a grounding wire on the grounding end of the grounding wire;

step 2, installing a grounding end of a grounding wire; attaching the grounding end of the grounding wire and the fixed grounding pile together;

step 3, installing a locking nut of the grounding end of the grounding wire to tightly connect the grounding end of the grounding wire and the fixed grounding pile together; and then a normally open contact line on a signal line of the travel switch is connected to the local LCU opening module, and the monitoring system displays that the primary electrical equipment is not hung with a grounding wire.

Furthermore, in the step 2, the ground wire grounding end is installed by passing the screw of the ground wire grounding end on the ground wire grounding end through the second hole on the fixed grounding pile and making the upper end surface of the ground wire grounding end touch the contact of the travel switch.

Furthermore, in step 3, the locking nut of the grounding end of the grounding wire is installed to tightly connect the grounding end of the grounding wire and the fixed grounding pile together, and the locking nut of the grounding end of the grounding wire is sleeved on the screw rod of the grounding end of the grounding wire and is screwed tightly, so that the grounding end of the grounding wire and the fixed grounding pile are tightly attached together, and the contact of the travel switch is moved upwards.

Further, the method for preventing the primary electric equipment from being provided with the ground circuit breaker and the isolating switch comprises the following steps:

connecting the fixed grounding pile with a grounding grid near the position where the primary electrical equipment needs to hang a grounding wire; installing a travel switch on the fixed grounding pile, and sending a normally open contact of the travel switch into the local LCU opening module;

when the primary electrical equipment has no ground wire, the travel switch does not act, the normally open contact is disconnected, no signal is sent to the local LCU opening module, and the monitoring system displays that the primary electrical equipment has no ground wire hung;

when the primary electrical equipment hangs the ground wire, the ground wire grounding end is connected with the fixed grounding pile, so that the touch travel switch starts to act, the normally open contact of the travel switch is closed, a signal is sent to the local LCU opening module, and the monitoring system displays that the primary electrical equipment hangs the ground wire.

The invention has the advantages and beneficial effects that:

the device has the characteristics of simple design, convenient operation and use, practical function, universal wearing parts and convenient maintenance. And the appearance is pleasing to the eye, need not to change once electrical equipment and hangs earth wire position, also can not produce harmful effects to the operation. The device signal of the invention is accessed to the local LCU through a hard wiring mode, can meet the safety protection work requirement of the electric power monitoring system, has better safety performance, and can greatly improve the work efficiency due to the convenience of operation.

The local LCU is an important component of a hydropower station computer monitoring system, forms a local level in a layered structure, and can realize monitoring and control on the unit operation on site. Therefore, the device has strong practicability, can find the problem at the first time and take measures in time. Is suitable for being widely popularized and applied in the power industry and has wider market application prospect.

Drawings

In order to facilitate the understanding and practice of the present invention for those of ordinary skill in the art, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the detailed description, the following examples are provided to illustrate the present invention, but it should be understood that the scope of the present invention is not limited by the detailed description.

FIG. 1 is a schematic view of the apparatus of the present invention with the fittings broken away;

FIG. 2 is a schematic view of the overall structure of the device of the present invention;

FIG. 3 is a schematic view of the ground connection of the ground line of the device of the present invention.

In the figure:

the travel switch comprises a travel switch 1, a travel switch contact 2, a travel switch signal wire 3, a fixed grounding pile 4, a first hole 5, a second hole 6, a grounding wire grounding end 7, a grounding wire grounding end screw 8 and a grounding wire grounding end locking nut 9.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The solution of some embodiments of the invention is described below with reference to fig. 1-3.

The invention provides an embodiment, and provides a device and a method capable of acquiring hanging and dismantling states of a grounding wire in real time. The following is a detailed description of the components of the apparatus of the present invention.

The device of the invention comprises: the travel switch 1 and the fixed grounding pile 4 are formed, and a plurality of through holes are formed in the fixed grounding pile 4; the travel switch 1 is inserted into a through hole on the fixed grounding pile 4, and an adhesive layer is arranged on the surface of the travel switch 1, which is in contact with the fixed grounding pile 4. The viscose layer is daubed strong glue, and the contact surface of the travel switch 1 and the fixed grounding pile 4 is firmly bonded together through the strong glue. As shown in fig. 2, fig. 2 is a schematic view of the overall structure of the device of the present invention.

Fig. 1 is a schematic view showing the disassembly of the fitting structure of the device of the present invention. The travel switch 1 is a commercially available existing product, the lower end of the travel switch 1 is connected with a contact 2 of the travel switch, one side of the upper end of the travel switch 1 is connected with a signal wire 3 of the travel switch, and a normally open contact line on the signal wire 3 of the travel switch is connected with an on-site LCU (liquid Crystal Unit) switch-in module.

As shown in fig. 1, the fixed ground pile 4 of the present invention is made of copper, and has a shape of a rectangular plate, wherein one side is longer than the other side, and two through holes are formed on the surface of the longer side, and the through holes are circular holes, namely a first hole 5 and a second hole 6. The diameter of the through hole is matched with that of the contact 2 of the travel switch, so that the contact 2 of the travel switch can be just placed in the through hole and penetrates through the through hole.

The working principle of the present invention is as follows,

in practical implementation, as shown in fig. 3, it is a schematic view of the ground line ground terminal of the device of the present invention. Firstly, weld fixed ground stake 4 and ground net together near primary electrical equipment, pass first hole 5 with travel switch's contact 2 again, carry out fixed bonding through scribbling the super glue with the surface that travel switch 1 and fixed ground stake 4 contacted again to make travel switch 1 more firm install on fixed ground stake 4. And then a normally open contact line on a signal line 3 of the travel switch is connected to an on-site LCU (local control unit) switching-in module, and a monitoring system displays that the primary electrical equipment is not hung with a grounding wire.

And the other through hole second hole 6 on the fixed grounding pile 4 is fastened by a screw 8 of the grounding wire grounding end on the grounding wire grounding end 7 and a locking nut 9 of the grounding wire grounding end, so that the fixed grounding pile 4 can be tightly combined and connected with the grounding wire grounding end 7.

Example 2

The invention also provides an embodiment, which is a method for acquiring the hanging and dismantling states of the grounding wire in real time, and the method comprises the following operation steps:

step 1, dismounting a locking nut 9 of a grounding end of the grounding wire on a grounding end 7 of the grounding wire;

and 2, installing a grounding wire grounding end 7, enabling a screw 8 of the grounding wire grounding end to penetrate through the second hole 6 on the fixed grounding pile 4, and enabling the upper end face of the grounding wire grounding end 7 to touch the contact 2 of the travel switch.

And 3, installing a locking nut 9 of the ground wire grounding end, sleeving the locking nut 9 of the ground wire grounding end on a screw 8 of the ground wire grounding end and screwing the locking nut tightly, so that the ground wire grounding end 7 is tightly attached to the fixed grounding pile 4, and the contact 2 of the travel switch moves upwards.

And then a normally open contact line on a signal line 3 of the travel switch is connected to an on-site LCU (local control unit) switching-in module, and a monitoring system displays that the primary electrical equipment is not hung with a grounding wire.

Example 3

The invention provides an embodiment, in particular to a device and a method capable of acquiring the hanging and dismounting states of a grounding wire in real time, wherein the device comprises the following steps:

and (3) installing a fixed grounding pile 4 near the position of a primary electric device where a grounding wire needs to be hung, and firstly connecting the fixed grounding pile 4 with a grounding grid. And a travel switch 1 is arranged on the fixed grounding pile 4, and a normally open contact of the travel switch is sent to the local LCU opening module.

When the primary electrical equipment has no ground wire, the travel switch 1 does not act, the normally open contact of the travel switch 1 is disconnected, no signal is sent to the local LCU opening module, and the monitoring system displays that the primary electrical equipment does not hang the ground wire.

When the primary electrical equipment hangs the ground wire, firstly, the ground wire grounding end 7 is connected with the fixed grounding pile 4, so that the touch travel switch 1 starts to act, the normally open contact of the travel switch is closed, a signal is sent to the local LCU opening module, and the monitoring system displays that the primary electrical equipment hangs the ground wire.

In the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "connected" and "fixed" are to be construed broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the indicated devices or units must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (10)

1. The utility model provides a can gather in real time that earth connection hangs, tear device of state open, includes travel switch (1), characterized by: the device also comprises a fixed grounding pile (4); a plurality of through holes are formed in the fixed grounding pile (4); the contact (2) of the travel switch on the travel switch (1) is inserted into the through hole on the fixed grounding pile (4), and an adhesive layer is arranged on the contact surface of the travel switch (1) and the fixed grounding pile (4); a normally open contact line on a signal line (3) of the travel switch is connected with an on-site LCU (liquid crystal unit) opening module, and a monitoring system displays that a primary electrical device is not hung with a grounding wire.

2. The device capable of collecting the hanging and dismantling states of the grounding wire in real time as claimed in claim 1, wherein: the through holes are two and comprise a first hole (5) and a second hole (6).

3. The device capable of collecting the hanging and dismantling states of the grounding wire in real time as claimed in claim 1, wherein: the through hole is a round hole, and the diameter of the round hole is matched with that of a contact (2) of the travel switch on the travel switch (1), so that the contact (2) of the travel switch is just arranged in the through hole and penetrates through the through hole.

4. The device capable of collecting the hanging and dismantling states of the grounding wire in real time as claimed in claim 1, wherein: the adhesive layer is formed by daubed super glue.

5. The device capable of collecting the hanging and dismantling states of the grounding wire in real time as claimed in claim 1, wherein: the fixed grounding pile (4) is in a shape of a right-angle plate, one side of the fixed grounding pile is longer than the other side of the fixed grounding pile, two through holes are formed in the surface of the longer side of the fixed grounding pile, and the through holes can also be square or prismatic through holes.

6. The device capable of collecting the hanging and dismantling states of the grounding wire in real time as claimed in claim 1, wherein: the fixed grounding pile (4) is made of copper.

7. A method capable of collecting hanging and dismantling states of a grounding wire in real time is characterized by comprising the following steps: the method comprises the following operation steps:

step 1, dismounting a locking nut of a grounding end of a grounding wire on the grounding end of the grounding wire;

step 2, installing a grounding end of a grounding wire; attaching the grounding end of the grounding wire and the fixed grounding pile together;

step 3, installing a locking nut of the grounding end of the grounding wire to tightly connect the grounding end of the grounding wire and the fixed grounding pile together; and then a normally open contact line on a signal line of the travel switch is connected to the local LCU opening module, and the monitoring system displays that the primary electrical equipment is not hung with a grounding wire.

8. The method for acquiring the hanging and dismantling states of the grounding wire in real time as claimed in claim 7, wherein the method comprises the following steps: and 2, installing the grounding end of the grounding wire, namely enabling a screw rod of the grounding end of the grounding wire on the grounding end of the grounding wire to penetrate through a second hole on the fixed grounding pile, and enabling the upper end surface of the grounding end of the grounding wire to touch the contact of the travel switch.

9. The method for acquiring the hanging and dismantling states of the grounding wire in real time as claimed in claim 7, wherein the method comprises the following steps: and 3, installing a locking nut of the grounding end of the grounding wire to tightly connect the grounding end of the grounding wire and the fixed grounding pile together, namely sleeving the locking nut of the grounding end of the grounding wire on a screw rod of the grounding end of the grounding wire and screwing the locking nut, so that the grounding end of the grounding wire and the fixed grounding pile are tightly attached together, and the contact of the travel switch moves upwards.

10. The method for acquiring the hanging and dismantling states of the grounding wire in real time as claimed in claim 7, wherein the method comprises the following steps: the method comprises the following steps:

connecting the fixed grounding pile with a grounding grid near the position where the primary electrical equipment needs to hang a grounding wire; installing a travel switch on the fixed grounding pile, and sending a normally open contact of the travel switch into the local LCU opening module;

when the primary electrical equipment has no ground wire, the travel switch does not act, the normally open contact is disconnected, no signal is sent to the local LCU opening module, and the monitoring system displays that the primary electrical equipment has no ground wire hung;

when the primary electrical equipment hangs the ground wire, the ground wire grounding end is connected with the fixed grounding pile, so that the touch travel switch starts to act, the normally open contact of the travel switch is closed, a signal is sent to the local LCU opening module, and the monitoring system displays that the primary electrical equipment hangs the ground wire.

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