CN215265998U - Distribution network overhead line type grounding switch - Google Patents
Distribution network overhead line type grounding switch Download PDFInfo
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- CN215265998U CN215265998U CN202121133695.2U CN202121133695U CN215265998U CN 215265998 U CN215265998 U CN 215265998U CN 202121133695 U CN202121133695 U CN 202121133695U CN 215265998 U CN215265998 U CN 215265998U
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- overhead line
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Abstract
The utility model relates to a distribution network overhead line type ground switch, which comprises a switch base, a grounding blade, a grounding switch operating handle and a static contact; the top of one side of the switch base is provided with three fixed contacts which are connected with the top of the circuit breaker isolating switch; the bottom of one side of the switch base is provided with a rotating shaft, a blade mounting rack is fixedly arranged on the rotating shaft, and one end of the rotating shaft is fixedly connected with the grounding switch operating handle; three ground connection blade is fixed mounting respectively on the blade mounting bracket, and is connected with the earth connection, and three ground connection blade can swing through the pivot rotation and contact with the static contact. Through the utility model discloses on operating personnel need not to climb to the pole, stand and can carry out the ground connection operation through insulating bar on ground to avoid the risk that the high altitude falls, the while operation in-process can not take place the mistake yet and bump unsafe behavior such as, has improved the stability of power supply reliability and electric wire netting safe operation.
Description
Technical Field
The utility model relates to a power grid line overhauls technical field, in particular to join in marriage net overhead line type earthing switch.
Background
Along with the development of society, people rely on electric energy more and more strongly, and the requirement on power supply reliability is higher and higher. The ZW32 type outdoor vacuum circuit breaker on column is an outdoor high-voltage distribution equipment with rated voltage of 12KV and three-phase AC 50Hz, and is mainly used for switching on and off load current, overload current and short-circuit current in a power system. The device is suitable for protection and control in distribution systems of transformer substations and industrial and mining enterprises, and is more suitable for places of urban and rural power grid construction transformation and frequent operation. The outdoor column vacuum circuit breaker of ZW32 type has the following advantages: 1. the spring operating mechanism can be matched and used, and has the basic functions of on-off load current, overload current, short-circuit current and the like; 2. a lightning arrester can be additionally arranged; 3. the reclosing device has the function of 1-3 reclosings, and parameters of the recloser can be set, so that the reclosing device has extremely high reliability; 4. has a high mechanical and electrical life, being completely maintenance-free throughout its life.
When overhauing the electric wire netting circuit, need break off vacuum circuit breaker to ground connection work, the operation is overhauld now: the operating personnel breaks off the vacuum circuit breaker at first, then climbs to the pole with the earth connection on the back, then tests the electricity, can carry out the electric wire netting circuit to overhaul after articulating the earth connection at last. In the operation process, the high-altitude falling risk is high. Unsafe behaviors such as 'mistaken collision' and the like can occur in the operation process, and the power supply reliability of customers and the safe and stable operation of a power grid can be directly influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a join in marriage net overhead line type earthing switch.
The utility model adopts the technical proposal that:
a distribution network overhead line type grounding switch is arranged on one side of a circuit breaker and is symmetrically arranged with an isolating switch, and the distribution network overhead line type grounding switch is composed of a switch base, a grounding blade, a grounding switch operating handle and a static contact; the switch base is fixedly arranged on a support of the circuit breaker and is of a trapezoidal frame structure, the top of one side of the switch base is provided with three static contacts, and the three static contacts are connected with the top of the circuit breaker through a wiring board, a copper plate and a cable lap plate; the bottom of one side of the switch base is provided with a rotating shaft, a blade mounting rack is fixedly arranged on the rotating shaft, and one end of the rotating shaft extends out of the switch base and is fixedly connected with an earthing switch operating handle; three ground connection blade is fixed mounting respectively on the blade mounting bracket, and is connected with the earth connection on the blade mounting bracket, and three ground connection blade can swing and the static contact through the pivot rotation.
Preferably, an insulator is further arranged on the static contact.
Preferably, a first linkage rod is arranged between one end of the rotating shaft extending out of the switch base and the grounding switch operating handle, a second linkage rod is arranged between the operating handle of the isolating switch and the rotating shaft of the isolating switch, and an abutting positioning disc is further arranged on one side end face of the circuit breaker; one end of the first linkage rod is rotatably connected with the rotating shaft, and the other end of the first linkage rod is provided with a kidney-shaped hole and a bolt which can be telescopically fixed on the abutting positioning disc through the bolt; one end of the second linkage rod is rotatably connected with a rotating shaft of the isolating switch, a waist-shaped hole and a bolt are arranged at the other end of the second linkage rod, and the second linkage rod can be telescopically fixed on the abutting positioning disc through the bolt.
Preferably, still be equipped with the plectrum on the operating handle, still be equipped with the rotatory valve floodgate switch of second on the circuit breaker simultaneously, the plectrum passes through the operating handle rotation can with the rotatory valve floodgate switch butt of second, make the valve floodgate of second rotatory valve floodgate switch card income circuit breaker.
The utility model has the advantages that:
through this distribution network overhead line type earthing switch operating personnel need not to climb to the pole, stands and can carry out ground connection operation through insulating bar on ground to avoid the risk that the high altitude falls, unsafe behaviors such as also can not take place the mistake and bump simultaneously among the operation process, improved the stability of power supply reliability and electric wire netting safe operation.
In addition, the distribution network overhead line type grounding switch can form linkage locking with the isolating switch through the linkage rod and the positioning disc, and the distribution network overhead line type grounding switch cannot be switched on when the isolating switch is in a switching-on state; this join in marriage net overhead line type earthing switch can form the linkage with the circuit breaker through plectrum and second rotary valve floodgate switch, and when this join in marriage net overhead line type earthing switch combined floodgate, the unable card of rotary valve floodgate switch of circuit breaker self goes into the valve floodgate of circuit breaker to make the circuit breaker be in the off-position, further protect operating personnel personal safety.
Drawings
Fig. 1 is a schematic side view of the present invention;
fig. 2 is a schematic structural view of the coupling rod and the positioning plate of the present invention;
fig. 3 is a schematic structural view of the second rotary valve gate switch and the paddle of the present invention;
in the figures 1-3, 1-circuit breaker, 2-isolating switch, 3-switch base, 4-grounding blade, 5-grounding switch operating handle, 6-static contact, 7-wiring board, 8-copper plate, 9-cable lapping plate, 10-rotating shaft, 11-insulator, 12-first linkage rod, 13-second linkage rod, 14-abutting positioning plate, 15-shifting plate and 16-second rotary valve brake switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of 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 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.
As shown in fig. 1, the utility model relates to a distribution network overhead line type grounding switch, which is arranged at one side of a breaker 1, and is symmetrically arranged with an isolating switch 2; the distribution network overhead line type grounding switch is composed of a switch base 3, a grounding blade 4, a grounding switch operating handle 5 and a static contact 6.
The switch base 3 is fixedly installed on a support of the circuit breaker 1 and is of a trapezoid frame structure, three fixed contacts 6 are arranged at the top of one side of the switch base, and the three fixed contacts 6 are connected with the top of the circuit breaker 1 through a wiring board 7, a copper plate 8 and a cable lapping plate 9. The bottom of switch base 3 one side is equipped with pivot 10, fixedly on the pivot 10 being equipped with the blade mounting bracket, and the blade mounting bracket is not shown in the figure, and the one end of pivot 10 extends to switch base 3 outside and earthing switch operating handle 5 fixed connection. Three earthing blade 4 respectively fixed mounting is on the blade mounting bracket, and is connected with the earth connection on the blade mounting bracket, and the earth connection is not shown in the figure, and three earthing blade 4 can swing through the rotation of pivot 10 and contact with static contact 6. In order to ensure the safety of operators, an insulator 11 can be additionally arranged on the static contact 6.
When the distribution network overhead line type grounding switch is used for grounding operation, firstly, a grounding wire is grounded; then, an operator operates a rotary valve switch on the circuit breaker 1 through the insulating rod to enable the circuit breaker 1 to be in the open position. Then, the isolating switch 2 is operated by the operating handle of the insulating rod, so that the isolating switch 2 is positioned at the separation position, and the grounding operation can be carried out at the moment. During ground connection operation, at first rotate earthing switch operating handle 5, earthing switch operating handle 5 rotates and can drive pivot 10 and the epaxial blade mounting bracket of pivot 10 and rotate, and the blade mounting bracket rotates and drives three earthing blade 4 swing and the contact of static contact 6, can accomplish ground connection operation to avoid operating personnel to climb on the pole, carry out ground connection operation.
On the basis of the technical scheme, in order to ensure the power supply reliability and the safe and stable operation of the power grid, when the isolating switch 2 is in a closed position, the distribution network overhead line type grounding switch cannot be switched on.
As shown in fig. 2, a first linkage rod 12 may be additionally provided between the end of the rotating shaft 10 extending out of the switch base 3 and the earthing switch operating handle 5, a second linkage rod 13 may be additionally provided between the operating handle of the disconnecting switch 2 and the rotating shaft thereof, and an abutting positioning plate 14 may be additionally provided on one side end surface of the circuit breaker 1. One end of the first linkage rod 12 is rotatably connected with the rotating shaft 10, and the other end of the first linkage rod is provided with a kidney-shaped hole and a bolt which can be telescopically fixed on the abutting positioning disc 14; one end of the second linkage rod 13 is rotatably connected with the rotating shaft of the isolating switch 2, and the other end of the second linkage rod is provided with a kidney-shaped hole and a bolt which can be telescopically fixed on the abutting positioning disc 14.
When the disconnecting switch 2 is in the closed position, the other end of the second linkage rod 13 is in an extended state on the abutting positioning plate 14, and at this time, if the closing operation of the distribution network overhead line type grounding switch is performed, the other end of the first linkage rod 12 abuts against the other end of the second linkage rod 13 when extended on the abutting positioning plate 14, so that the distribution network overhead line type grounding switch cannot perform the closing operation.
In addition, in order to guarantee the power supply reliability and the safe and stable operation of a power grid, when the distribution network overhead line type grounding switch is in a closing state, the rotary valve gate switch of the circuit breaker 1 can not be clamped into the valve gate of the circuit breaker 1, so that the circuit breaker 1 is in a separating position, and the personal safety of operators is further protected.
As shown in fig. 3, a paddle 15 may be additionally provided on the operation handle, a second rotary valve gate switch 16 may be additionally provided on the circuit breaker 1, and the paddle 15 may abut against the second rotary valve gate switch 16 by rotating the operation handle, so that the second rotary valve gate switch 16 is engaged with the valve gate of the circuit breaker 1. After the second rotary valve gate switch 16 is clamped into the valve gate of the circuit breaker 1, the rotary valve gate switch of the circuit breaker 1 can not be clamped into the valve gate of the circuit breaker 1, so that when the distribution network overhead line type grounding switch is in a closing state, the circuit breaker 1 can only be in a separating position and can not be in a closing position, and the personal safety of operators is further protected.
Claims (4)
1. The utility model provides a join in marriage net overhead line type earthing switch which characterized in that: the distribution network overhead line type grounding switch is arranged on one side of the breaker and is symmetrically arranged with the isolating switch, and the distribution network overhead line type grounding switch is composed of a switch base, a grounding blade, a grounding switch operating handle and a static contact; the switch base is fixedly arranged on a support of the circuit breaker and is of a trapezoidal frame structure, the top of one side of the switch base is provided with three static contacts, and the three static contacts are connected with the top of the circuit breaker through a wiring board, a copper plate and a cable lap plate; the bottom of one side of the switch base is provided with a rotating shaft, a blade mounting rack is fixedly arranged on the rotating shaft, and one end of the rotating shaft extends out of the switch base and is fixedly connected with an earthing switch operating handle; three ground connection blade is fixed mounting respectively on the blade mounting bracket, and is connected with the earth connection on the blade mounting bracket, and three ground connection blade can swing and the static contact through the pivot rotation.
2. The distribution network overhead line type ground switch of claim 1, characterized in that: and an insulator is also arranged on the static contact.
3. The distribution network overhead line type ground switch of claim 1, characterized in that: a first linkage rod is arranged between one end of the rotating shaft extending out of the switch base and the grounding switch operating handle, a second linkage rod is arranged between the operating handle of the isolating switch and the rotating shaft of the isolating switch, and an abutting positioning disc is further arranged on one side end face of the circuit breaker; one end of the first linkage rod is rotatably connected with the rotating shaft, and the other end of the first linkage rod is provided with a kidney-shaped hole and a bolt which can be telescopically fixed on the abutting positioning disc through the bolt; one end of the second linkage rod is rotatably connected with a rotating shaft of the isolating switch, a waist-shaped hole and a bolt are arranged at the other end of the second linkage rod, and the second linkage rod can be telescopically fixed on the abutting positioning disc through the bolt.
4. The distribution network overhead line type ground switch of claim 1, characterized in that: still be equipped with the plectrum on the operating handle, still be equipped with the rotatory valve floodgate switch of second on the circuit breaker simultaneously, the plectrum passes through operating handle and rotates can with the rotatory valve floodgate switch butt of second, makes the rotatory valve floodgate switch card of second go into the valve floodgate of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133695.2U CN215265998U (en) | 2021-05-25 | 2021-05-25 | Distribution network overhead line type grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121133695.2U CN215265998U (en) | 2021-05-25 | 2021-05-25 | Distribution network overhead line type grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215265998U true CN215265998U (en) | 2021-12-21 |
Family
ID=79458172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121133695.2U Active CN215265998U (en) | 2021-05-25 | 2021-05-25 | Distribution network overhead line type grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215265998U (en) |
-
2021
- 2021-05-25 CN CN202121133695.2U patent/CN215265998U/en active Active
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