CN210326180U - Movable intelligent grounding device - Google Patents
Movable intelligent grounding device Download PDFInfo
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- CN210326180U CN210326180U CN201920917408.3U CN201920917408U CN210326180U CN 210326180 U CN210326180 U CN 210326180U CN 201920917408 U CN201920917408 U CN 201920917408U CN 210326180 U CN210326180 U CN 210326180U
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Abstract
The utility model relates to a portable intelligent earthing device, including the support, locate the capstan winch between the support, locate the ground connection stake at capstan winch middle part both ends and locate the intelligent ground resistance tester on the capstan winch, the earth connection winding of the ground connection stake at both ends is in the capstan winch outside, and the electrical equipment that needs the ground connection passes through the three-phase short circuit earth connection and is connected with the ground connection stake on the capstan winch. The utility model discloses whether can be clear and definite to reach current earthing device and satisfy the ground connection demand, solve and can't detect the qualified problem of ground resistance after the current earth connection is installed, solve the current acquiescence earth connection and firmly connect the potential safety hazard that just can satisfy the ground resistance and require to exist on the ground connection stake; the problem that equipment grounding cannot be completed when the number of grounding piles in a single working interval is insufficient is solved, and working is guaranteed to be carried out on schedule; the grounding of equipment at a longer distance is realized; unnecessary engineering time waste is reduced, and smooth development of subsequent work is facilitated.
Description
Technical Field
The utility model relates to an earthing device, especially a portable intelligent earthing device.
Background
Connecting a portion of an electrical power system or electrical device to a ground electrode via a ground line is referred to as grounding. The wire connected to the ground electrode is referred to as a ground wire. The grounding electrode and the grounding wire are called as grounding devices. The grounding is an electricity utilization safety measure which is adopted to ensure the normal work and personal safety of power equipment, is realized by connecting a metal wire with a grounding device, and is commonly used for protecting grounding, working grounding, lightning protection grounding, shielding grounding, static electricity prevention grounding and the like. The grounding device introduces leakage current, static charge, lightning current and the like which can be generated on power equipment and other production equipment into the ground, thereby avoiding human body electric shock and accidents such as fire, explosion and the like which can occur.
In an electric power system, when an operator performs an operation of switching an electrical device to an inspection state, it is necessary to ensure that the device switched to the inspection is grounded safely. For electric power workers, the stably connected grounding device means the guarantee of life safety, so that the grounding pile which is stable in connection, reliable in grounding and applicable is particularly important.
However, in current use, the grounding piles are fixed on the bottom of a wall surface or on the support of electrical equipment and cannot move. When the grounding pile is used, the three-phase short-circuit connecting wire is not long enough or no grounding pile which can be used is arranged near the position where the three-phase short-circuit connecting wire needs to be installed. Because three-phase short circuit earth connection weight is heavier, need frequently change when discovering that earth connection length is not enough when installing the earth connection and install the position, lead to a large amount of physical power that consume the operating personnel also to reduce work efficiency.
Meanwhile, as the grounding piles are not installed in the design and construction of some transformer substations, the grounding piles are difficult to supplement after the construction and operation are completed, and the grounding wires cannot be installed. When the work of installing the grounding wire is required, the work schedule is affected because the reliable grounding cannot be installed and the work cannot be started.
In addition, the grounding pile is always exposed outdoors, so that the grounding resistance cannot meet the requirement due to the fact that corrosion easily occurs, the grounding resistance requirement can be met by stably connecting the grounding wire to the grounding pile basically in a default mode in the current use process, the grounding resistance is not tested by using an instrument, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a portable intelligent earthing device realizes the removal of ground connection stake to can measure the earth resistance of removing ground connection stake this moment, with solve the present production process equipment three-phase short circuit earth connection inefficiency and do not have ground connection stake at some special occasion and lead to the problem that can't install the earth connection. The technical scheme of the utility model is specifically as follows:
the utility model provides a portable intelligent earthing device, includes the support, locates the capstan winch between the support, locates the ground connection stake at capstan winch middle part both ends and locates the intelligent ground resistance tester on the capstan winch, and the earth connection winding of the ground connection stake at both ends is in the capstan winch outside, and the electrical equipment that needs the ground connection passes through the three-phase short circuit earth connection and is connected with the ground connection stake on the capstan winch.
Further, the winch is arranged between the supports through the rotating shaft, and a rocking handle is arranged at one end of the rotating shaft.
Furthermore, one end of a grounding wire of the grounding pile is directly fixed on the winch and connected with the grounding pile on the winch, and the other end of the grounding wire is movably arranged on the winch.
Further, the grounding wire of the grounding pile is 20m long and 25 mm in section2The copper ground line of (2).
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the utility model discloses an intelligent ground resistance tester on the device surveys ground resistance, and can measure this moment and remove ground pile's ground resistance and reach or send the warning when exceeding the alarm value, whether perfect earth connection ground satisfy the judgement of requirement, whether can definitely reach current earthing device and satisfy the ground connection demand, solve present earth connection installation back unable ground resistance that detects qualified problem, solve present acquiescence earth connection firm connection just can satisfy the potential safety hazard that ground resistance requirement exists on ground pile.
(2) The utility model discloses can realize the nimble removal of ground connection stake, can directly place the position that the earth connection was installed to needs with the three-phase short circuit earth connection, set up two ground connection stakes, solve single work interval ground connection stake quantity when not enough, can't accomplish the problem of equipment ground connection, guarantee that work goes on by stage.
(3) The utility model discloses an earth connection winding is on the capstan winch, places the capstan winch by the electrical equipment of needs ground connection, uses the ground connection stake on three-phase short circuit earth connection and the capstan winch to be connected and can constitute ground connection, and physical power that can save the operation personnel in a large number makes the operation personnel carry out after with more abundant energy safely, has not only improved work efficiency simultaneously also to a great extent's assurance operating personnel's safety. If the distance between the equipment needing to be converted into the maintenance state and the nearest grounding pile is more than 20m, two movable grounding piles can be connected in series to realize the grounding of the equipment at a longer distance.
(4) Aiming at the current occasions where the fixed grounding piles are not arranged or the grounding piles are not configured sufficiently, the device can also play a good role. Utilize the utility model discloses two ground connection stakes of configuration can make two equipment of realization pass through the device while ground connection, solve the problem that ground connection stake is not enough can't accomplish equipment ground connection, reduce unnecessary engineering time extravagant, are favorable to developing smoothly of follow-up work.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a side view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some examples of the present invention, not all examples. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, the mobile intelligent grounding device of the present embodiment includes a support 4, a winch 3 disposed between the support 4, grounding piles 2 disposed at two ends of the middle of the winch 3, and an intelligent grounding resistance tester 1 disposed on the winch 3, wherein grounding wires 6 of the grounding piles 2 at two ends are wound outside the winch 3, as shown in fig. 2.
The winch 3 is arranged between the brackets 4 through a rotating shaft, and one end of the rotating shaft is provided with a rocking handle 7. The bottom of the bracket 4 is triangular, the top of the triangle is provided with a stay bar, and the rotating shaft is arranged at the connecting part of the stay bar and the top end of the triangle. The ground wire can be conveniently and quickly wound on the winch by using the rocking handle.
In this embodiment, the ground connection pile 2The grounding wire is 20m long and has a section of 25 mm2The copper ground line of (2).
The movable winch of the embodiment is made of epoxy resin and used for winding the grounding wire to realize the movement of the grounding pile. The intelligent grounding resistance tester 1 is an existing device, can measure the grounding resistance of the movable grounding pile, and can give an alarm when reaching or exceeding an alarm value. The ground resistance testing device is integrated on the winch, the ground wire is connected with the movable ground pile on the winch, the ground resistance from the grounding pile of the winch to the ground point can be directly obtained through the intelligent ground resistance tester, whether the ground requirement is met can be judged according to the measured resistance value, the specific measuring method is carried out according to the prior art, one end of the ground resistance tester is connected to the grounding pile on the winch in a testing mode, the other end of the ground resistance tester is connected to the temporary grounding pin or the original grounding pile needing to be extended in a testing mode, the ground resistance can be measured by opening the tester, and if the ground resistance is unqualified, the tester gives an alarm automatically.
The section of the grounding wire of the embodiment is not less than 25 mm according to the power safety work code power plant and substation part (GB 26860-2011)2The device has a length of 20m and a cross section of 25 mm2The copper grounding wire meets the regulations of power plant and substation parts (GB 26860-2011) of electric power safety work regulations.
The free moving end of the copper grounding wire can be stably fixed on the existing grounding flat iron.
The alarm value of the movable grounding pile of the embodiment is set to be 15.8m omega, so that the regulations of power safety work code power plant and substation part (GB 26860 and 2011) are met.
The grounding pile of the embodiment is the same as a fixed grounding pile used at present, a grounding wire terminal is used for connecting a grounding wire to the movable grounding pile, two grounding piles are arranged in the embodiment, and two devices can be grounded simultaneously.
Example 2
The apparatus of this example is the same as example 1.
The free moving end head of the copper grounding wire can be firmly fixed on the bolt head of the temporary grounding pin.
The embodiment aims at solving the problem that when electrical equipment needs to be converted into a maintenance state in some special occasions, due to the fact that no grounding pile exists near the equipment, the safe and stable grounding of the equipment cannot be achieved, and the work is affected. The movable grounding pile is placed at the position of the electrical equipment needing to be converted into the maintenance state, a temporary grounding pin (the section is not smaller than 190 mm) is buried in the ground by more than 0.6m, then a grounding wire fixing bolt of the movable grounding pile is fixed with the temporary grounding pin by a bolt, then a grounding resistance tester is used for testing whether a grounding device formed at present meets the requirement of grounding resistance, then the equipment is connected with a grounding pile on a winch of the movable grounding pile by a three-phase short-circuit grounding wire, stable and reliable grounding can be formed, and the equipment is converted into the maintenance state quickly to be favorable for subsequent work.
The test is that one end of the ground resistance tester is connected with the ground pile on the winch, the other end of the ground resistance tester is connected with the temporary grounding pin, the ground resistance can be measured by opening the tester, and if the ground resistance is unqualified, the tester gives an alarm automatically.
And two equipment can be grounded through the device by utilizing the two grounding piles arranged on the device, so that the problem that the equipment cannot be grounded without fixing the grounding piles or due to insufficient arrangement of the grounding piles is solved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a portable intelligent earthing device which characterized in that: the grounding device comprises brackets, winches arranged between the brackets, grounding piles arranged at two ends of the middle part of each winch and an intelligent grounding resistance tester arranged on each winch, wherein grounding wires of the grounding piles at two ends are wound on the outer sides of the winches, and electrical equipment needing grounding is connected with the grounding piles on the winches through three-phase short circuit grounding wires; ground connection stake's earth connection one end snap-on is on the capstan winch, is connected with the last earth connection stake of capstan winch, and the other end activity is located on the capstan winch.
2. The mobile intelligent grounding device of claim 1, wherein: the winch is arranged between the supports through the rotating shaft, and a rocking handle is arranged at one end of the rotating shaft.
3. The mobile intelligent grounding device of claim 1, wherein: the grounding wire of the grounding pile is 20m long and 25 mm in section2The copper ground line of (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920917408.3U CN210326180U (en) | 2019-06-18 | 2019-06-18 | Movable intelligent grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920917408.3U CN210326180U (en) | 2019-06-18 | 2019-06-18 | Movable intelligent grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210326180U true CN210326180U (en) | 2020-04-14 |
Family
ID=70144545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920917408.3U Active CN210326180U (en) | 2019-06-18 | 2019-06-18 | Movable intelligent grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210326180U (en) |
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2019
- 2019-06-18 CN CN201920917408.3U patent/CN210326180U/en active Active
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