CN216849754U - Movable lifting isolating switch for realizing switching of 35kV cable capacitance current - Google Patents
Movable lifting isolating switch for realizing switching of 35kV cable capacitance current Download PDFInfo
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- CN216849754U CN216849754U CN202123041137.6U CN202123041137U CN216849754U CN 216849754 U CN216849754 U CN 216849754U CN 202123041137 U CN202123041137 U CN 202123041137U CN 216849754 U CN216849754 U CN 216849754U
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- isolating switch
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- cable capacitance
- capacitance current
- crane
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Abstract
The utility model discloses a realize 35kV cable capacitance current's movable lift isolator that opens and shuts, including isolator main part and base. This application promotes the crane through the control hydraulic stem and expandes, the roof drives the isolator main part and carries out altitude mixture control in vertical direction, reform transform on the basis of GW4 type isolator in the present stage, design single-phase independent operating device, and design and manufacture control box, can carry out three-phase operation or single-phase independent operation, the cable overlap joint work that the overlap joint in-process was carried out the power failure earlier by personnel, then accomplish the electrified overlap joint work of 35kV wire at the other end by live working personnel, the divide-shut brake remote control operation of device is accomplished by the remote of operating personnel at last, it is then opposite with it to demolish the order, realize the function that opens and shuts of the electric capacity electric current of 35kV single core cable, and can combine the site conditions to remove, go up and down, satisfy alternate safe distance and to ground safe distance in the 35kV equipment operation process.
Description
Technical Field
The utility model relates to an isolator technical field especially relates to a movable lift isolator of 35kV cable capacitance current realizes opening and shutting.
Background
The isolating switch is a switch device which is mainly used for isolating a power supply and switching over, communicating and cutting off a small current circuit and has no arc extinguishing function. When the isolating switch is in the separated position, the contacts have insulation distance meeting the specified requirements and obvious disconnection marks; a switching device capable of carrying current under normal loop conditions and current under abnormal conditions (e.g., short circuit) for a specified period of time when in the closed position. The high-voltage isolating switch is generally used as a high-voltage isolating switch, namely an isolating switch with rated voltage of more than 1kV, the high-voltage isolating switch has a simple working principle and structure, but has high requirements on working reliability due to large usage amount, and has large influence on the design, establishment and safe operation of a substation and a power plant. The main characteristic of the isolating switch is that it has no arc-extinguishing capability, and can only open and close the circuit under the condition of no load current.
According to the technical requirement of charged lapping safety, when the capacitance current of an airborne cable is larger than 0.1A, an arc suppression switch is used for operation, and the capacitance current of not less than 0.5A exists in a 35kV cable with 150 meters according to calculation, so that lapping work of the 35kV cable cannot be directly carried out, and therefore a corresponding movable lifting isolating switch is urgently required to be proposed, so that the movable lifting isolating switch can be suitable for site conditions of different transformer substations and the condition that a 35kV line enters a station.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems, the movable lifting isolating switch for realizing the opening and closing of the capacitance current of the 35kV cable is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a realize opening and shutting 35kV cable electric capacity electric current's movable lift isolator, includes isolator main part and base, base bottom fixed mounting has the gyro wheel that is used for the removal, isolator main part bottom fixed mounting has the roof, movable mounting has the crane between roof and the base, the table wall is provided with the hydraulic stem in the crane, roof horizontal end one end fixed mounting has the control box, base top fixed mounting has two sets of positioning seats that are longitudinal distribution, the positioning seat is provided with the regulating part that is used for restricting the horizontal opening degree of crane with the one end of crane.
Preferably, the adjusting part comprises a limiting hole formed in the inner surface wall of the positioning seat and a connecting piece connected with one end of the lifting frame, and a bolt penetrates between the connecting piece and the limiting hole.
Preferably, the outer surface wall of the longitudinal end of the base is fixedly provided with a lug, and the inner surface wall of the lug is screwed and connected with a ground anchor.
Preferably, a supporting rod capable of being matched with the top plate to lift is fixedly installed between the top plate and the base.
Preferably, the connecting piece and the lifting frame are integrally formed.
Preferably, the plurality of groups of limiting holes are distributed at the horizontal end of the positioning seat at equal intervals.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
this application promotes the crane through the control hydraulic stem and expandes, so that the roof drives the isolator main part and carry out altitude mixture control in vertical direction, reform transform on the basis of GW4 type isolator in present stage, design single-phase independent operating device, and the design and manufacture control box, can carry out three-phase operation or single-phase independent operation, the cable overlap joint work that has a power failure is carried out by personnel earlier in the overlap joint process, then accomplish the electrified overlap joint work of 35kV wire at the other end by live working personnel, the divide-shut brake remote control operation of device is accomplished by operating personnel distance at last, it is then opposite with it to demolish the order, realize the function that opens and shuts of the electric capacity electric current of 35kV single core cable, and can combine the site conditions to remove, go up and down, satisfy alternate safe distance and to ground safe distance in the 35kV equipment operation process.
Drawings
Fig. 1 shows a schematic structural diagram provided according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram illustrating a plug and a connecting piece according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of the ground anchor provided by the embodiment of the present invention.
Illustration of the drawings:
1. a base; 2. a bolt; 3. a lifting frame; 4. a hydraulic lever; 5. connecting sheets; 6. positioning seats; 7. a ground anchor; 8. a top plate; 9. a support bar; 10. a control box; 11. the isolator main part.
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 embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
the utility model provides a realize 35kV cable capacitance current's that opens and shuts movable lift isolator, including isolator main part 11 and base 1, 1 bottom fixed mounting of base has the gyro wheel that is used for the removal, 11 bottom fixed mounting of isolator main part have roof 8, movable mounting has crane 3 between roof 8 and the base 1, the table wall is provided with hydraulic stem 4 in the crane 3, 8 horizontal end one end fixed mounting of roof has control box 10, 1 top fixed mounting of base has two sets of positioning seats 6 that are longitudinal distribution, positioning seat 6 is provided with the regulating part that is used for restricting 3 horizontal opening degrees of crane with crane 3's one end.
Specifically, as shown in fig. 1 and 2, the adjusting part comprises a limiting hole formed in the inner surface wall of the positioning seat 6 and a connecting piece 5 connected with one end of the lifting frame 3, and a bolt 2 is arranged between the connecting piece 5 and the limiting hole in a penetrating manner, so that a through hole in the connecting piece 5 corresponds to the limiting hole in the corresponding position, the bolt 2 is inserted, and the height limitation of the lifting frame 3 can be realized.
Specifically, as shown in fig. 1 and 3, the outer surface wall fixed mounting of the vertical end of base 1 has the lug, the outer surface wall closes soon in the lug and is connected with earth anchor 7, in order to guarantee base 1's stability, fixed mounting has the bracing piece 9 that can cooperate roof 8 to go up and down between roof 8 and the base 1, in order to guarantee roof 8's stability, connection piece 5 and crane 3 integrated into one piece, in order to guarantee connection piece 5's structural strength, the spacing hole of multiunit is the equidistance at the 6 horizontal ends of positioning seat and distributes, crane 3's control range has been guaranteed.
In conclusion, the lifting frame 3 is pushed to be unfolded by controlling the hydraulic rod 4, so that the top plate 8 drives the isolating switch main body 11 to be adjusted in height in the vertical direction, the GW4 type isolating switch at the present stage is used as a basis for reconstruction, a single-phase independent operating mechanism is designed, the control box 10 is designed and manufactured, three-phase operation or single-phase independent operation can be carried out, the cable lapping work of power failure is carried out by personnel firstly in the lapping process, then the live working personnel completes the live lapping work of the 35kV lead at the other end, finally the operator remotely completes the opening and closing remote control operation of the device, the disassembly sequence is opposite to the opening and closing sequence, the function of opening and closing the capacitance current of the 35kV single-core cable is realized, and the movable lifting device can move and lift in combination with the field condition, and meets the interphase safety distance and the ground safety distance in the running process of 35kV equipment.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a realize opening and shutting 35kV cable capacitance electric current's movable lift isolator, includes isolator main part (11) and base (1), its characterized in that, base (1) bottom fixed mounting has the gyro wheel that is used for removing, isolator main part (11) bottom fixed mounting has roof (8), movable mounting has crane (3) between roof (8) and base (1), table wall is provided with hydraulic stem (4) in crane (3), roof (8) horizontal end one end fixed mounting has control box (10), base (1) top fixed mounting has two sets of positioning seats (6) that are longitudinal distribution, positioning seat (6) are provided with the regulating part that is used for restricting crane (3) horizontal degree of expansion with the one end of crane (3).
2. The movable lifting isolating switch for realizing switching of 35kV cable capacitance current is characterized in that the adjusting part comprises a limiting hole formed in the inner surface wall of the positioning seat (6) and a connecting piece (5) connected with one end of the lifting frame (3), and a plug pin (2) penetrates through the connecting piece (5) and the limiting hole.
3. The movable lifting isolating switch for realizing on-off 35kV cable capacitance current is characterized in that a lug is fixedly installed on the outer surface wall of the longitudinal end of the base (1), and the inner surface wall of the lug is screwed and connected with a ground anchor (7).
4. The movable lifting isolating switch for realizing switching of 35kV cable capacitance current according to claim 1, characterized in that a supporting rod (9) capable of being matched with the top plate (8) to lift is fixedly installed between the top plate (8) and the base (1).
5. The movable lifting isolating switch for realizing on-off 35kV cable capacitance current is characterized in that the connecting piece (5) and the lifting frame (3) are integrally formed according to claim 2.
6. The movable lifting isolating switch for realizing on-off 35kV cable capacitance current is characterized in that a plurality of groups of limiting holes are distributed at the horizontal end of the positioning seat (6) at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041137.6U CN216849754U (en) | 2021-12-06 | 2021-12-06 | Movable lifting isolating switch for realizing switching of 35kV cable capacitance current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123041137.6U CN216849754U (en) | 2021-12-06 | 2021-12-06 | Movable lifting isolating switch for realizing switching of 35kV cable capacitance current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216849754U true CN216849754U (en) | 2022-06-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123041137.6U Active CN216849754U (en) | 2021-12-06 | 2021-12-06 | Movable lifting isolating switch for realizing switching of 35kV cable capacitance current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216849754U (en) |
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2021
- 2021-12-06 CN CN202123041137.6U patent/CN216849754U/en active Active
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