CN220041650U - High-voltage AC bypass switch - Google Patents
High-voltage AC bypass switch Download PDFInfo
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- CN220041650U CN220041650U CN202320100946.XU CN202320100946U CN220041650U CN 220041650 U CN220041650 U CN 220041650U CN 202320100946 U CN202320100946 U CN 202320100946U CN 220041650 U CN220041650 U CN 220041650U
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- 230000003068 static effect Effects 0.000 claims 1
- 230000011664 signaling Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model provides a high-voltage alternating current bypass switch, which relates to the technical field of switch components and comprises a shell, and a conducting rod, a spring control mechanism, a plug, a first control circuit, a second control circuit and a third control circuit which are arranged on the shell; in the high-voltage alternating current bypass switch, the switch closing loop is controlled by the 1LS and the 2LS together, so that the problem of low electric shock capacity of a single micro switch is solved, the operation is more reliable, the service life of equipment is long, the auxiliary switch adopts double contacts, double remote signaling of positions is realized, and the reliability of the control loop is higher.
Description
Technical Field
The utility model relates to the technical field of switch components, in particular to a high-voltage alternating current bypass switch.
Background
In recent years, the country pays attention to the development of distribution network work, but large-scale transformation of the distribution network is necessary to carry out a large amount of power failure operation, which greatly influences the power supply reliability of the distribution network. Therefore, the power system develops the uninterrupted operation of the distribution network bypass cable. The operation method is to build a temporary cable line on site, bridge a line section needing maintenance or fault, and then guide the line power supply to the temporary cable line and disconnect the line section needing maintenance or fault at the same time, so that maintenance work is carried out under the condition that the line is not powered off. The operation method has great significance for improving the power supply reliability and the high-quality service.
In the existing high-voltage alternating current bypass switch, a switch closing loop adopts a single micro switch, the electric shock capacity is low, an auxiliary switch adopts a single contact, the reliability of a control loop can be unstable, and the live working safety is affected.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a high-voltage alternating current bypass switch which is used for solving the technical problems that a switch closing loop in the prior art adopts a single micro switch, the electric shock capacity is low, an auxiliary switch adopts a single contact, the reliability of a control loop can be unstable, and the safety of live working is influenced.
The high-voltage alternating current bypass switch provided by the utility model comprises: the device comprises a shell, a conducting rod, a spring control mechanism, a plug, a first control circuit, a second control circuit and a third control circuit, wherein the conducting rod, the spring control mechanism, the plug, the first control circuit, the second control circuit and the third control circuit are arranged on the shell;
the conducting rods are divided into three input conducting rods and three output conducting rods, the output conducting rods are correspondingly connected with fixed contacts on the three input conducting rods through moving contacts, and the moving contacts are connected with insulating arms;
the output end of the spring control mechanism is connected with the insulating arm, and the two input ends of the spring control mechanism are respectively connected with a brake opening handle and a brake closing handle;
the first control circuit comprises an auxiliary switch AUX, a circuit A, a circuit B and a circuit C, wherein the circuit A, the circuit B and the circuit C are respectively connected with corresponding contacts on the plug, and the circuit C is connected with the circuit A or the circuit B through the auxiliary switch AUX;
the second control circuit comprises a limit switch 1LS, a limit switch 2LS, a limit switch 3LS, an operation motor M, a brake separating coil TC, a line D, a line E and a line F;
two ends of the line D are respectively connected with corresponding contacts on the plug, and the line D, the limit switch 1LS, the limit switch 3LS, the operation motor M and the brake separating coil TC are connected in series; the line E is connected in parallel with the line D on two sides of the limit switch 1LS, and the limit switch 2LS is arranged on the line E; one end of the line F is connected with a corresponding contact on the plug, and the other end of the line F is connected with a line D between the operating motor M and the switching-off coil TC;
the third control circuit comprises a line G and a pressure switch PS, two ends of the line E are respectively connected with corresponding contacts on the plug, and the pressure switch PS is connected with the line G.
Further, a ground terminal is also included, which is connected with the housing.
Further, the insulating arm is connected with an opening and closing indicating needle.
Further, the three input conductive rods and the three output conductive rods are respectively connected with the sleeve.
Further, the plug is a waterproof plug.
By adopting the technical scheme, the high-voltage alternating current bypass switch provided by the utility model has the following technical effects compared with the prior art:
in the high-voltage ac bypass switch,
1) The switching-on loop of the switch is controlled by the 1LS and the 2LS, so that the problem of low electric shock capacity of a single micro switch is solved, the operation is more reliable, and the service life of equipment is long.
2) The auxiliary switch adopts double contacts to realize double remote signaling of positions, and the reliability of a control loop is higher.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a high voltage AC bypass switch according to the present utility model;
icon: 1-a housing; 2-conducting rods; 3-a spring operated mechanism; 4-plug; 5-a moving contact; 6-insulating arms; 7-a brake separating handle; 8-a closing handle; 9-a ground terminal; 10-an opening and closing indicator needle; 11-sleeve.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the high-voltage ac bypass switch provided in this embodiment includes: a housing 1, a conductive rod 2, a spring control mechanism 3, a plug 4, a first control circuit, a second control circuit and a third control circuit which are arranged on the housing 1;
the conducting rods 2 are divided into three input conducting rods 2 and three output conducting rods 2, the output conducting rods 2 are correspondingly connected with fixed contacts on the three input conducting rods 2 through moving contacts 5, and the moving contacts 5 are connected with insulating arms 6;
the output end of the spring control mechanism 3 is connected with the insulating arm 6, and the two input ends of the spring control mechanism 3 are respectively connected with the opening handle 7 and the closing handle 8;
the first control circuit comprises an auxiliary switch AUX, a line A, a line B and a line C, wherein the line A, the line B and the line C are respectively connected with corresponding contacts on the plug 4, and the line C is connected with the line A or the line B through the auxiliary switch AUX;
the second control circuit comprises a limit switch 1LS, a limit switch 2LS, a limit switch 3LS, an operation motor M, a brake separating coil TC, a line D, a line E and a line F;
two ends of the line D are respectively connected with corresponding contacts on the plug 4, and the line D, the limit switch 1LS, the limit switch 3LS, the operation motor M and the switching-off coil TC are connected in series; the line E is connected in parallel with the line D on two sides of the limit switch 1LS, and the limit switch 2LS is arranged on the line E; one end of the line F is connected with a corresponding contact on the plug 4, and the other end of the line F is connected with a line D between the operating motor M and the switching-off coil TC;
the third control circuit comprises a line G and a pressure switch PS, wherein two ends of the line E are respectively connected with corresponding contacts on the plug 4, and the pressure switch PS is connected with the line G.
Working principle:
the function of the first control circuit: the auxiliary switch AUX reflects whether the switch is in the split or the on position. When the bypass switch is in the split position, the AUX normally-closed contact is conducted; when the bypass switch is in the closed position, the AUX normally open contact is conducted. The remote signaling signals of the switch are transmitted to a control terminal (FTU, not shown in the figure) through a control cable by the auxiliary switch AUX, and the control terminal controls the switching operation of the bypass switch according to the position remote signaling signals.
The function of the second control circuit: the switching-on and switching-off operation loops of the switch, 1LS, 2LS, M and the line F form a switching-on loop. In the switch-off state, after a switching-on loop obtains a signal, 1LS is conducted, a motor M is started, the motor drives an operating mechanism spring to store energy (not shown), after the energy storage is finished, 2LS is conducted, 1LS is disconnected, the motor continues to rotate, and a switching-on spring is released through a switching-off mechanism to drive the switch to switch on. After the switch is closed, 2LS is opened, 3LS is closed, and the switch enters a brake-separating preparation state.
When the switch is closed (in a brake-separating preparation state), if a brake-separating command is received, the brake-separating coil TC acts to release the brake-separating spring to drive the switch to separate the brake, and after the brake separation is completed, the 3LS is disconnected, the 1LS is connected, and the brake-separating coil TC enters a brake-separating preparation state.
Action of the third control circuit: the pressure switch PS is used to indicate the switch SF6 gas pressure condition. Under the normal condition of SF6 air pressure, PS is in a normally open state, and the bypass switch can perform opening and closing operation; when SF6 air pressure is lower than the lowest functional pressure due to air leakage of the switch, PS is conducted, an alarm signal is sent to the control terminal, and the switch opening and closing operation is locked.
The spring control mechanism 3 in this embodiment is a prior art, so the specific structure thereof will not be described, the spring control mechanism 3 can smoothly and accurately act, and the half-closing and half-opening states will not exist in a general opening and closing operation, and the natural closing (closing) or opening (breaking) will not occur due to general vibration or other reasons.
The following describes the working principle of the high-voltage ac bypass switch in this embodiment:
manual operation mode
If the operator pulls the right closing handle 8, the switch becomes 'on', the switch indicator points to 'on', and if the left opening handle 7 is pulled, the switch becomes 'off', the switch indicator points to 'off'. The operating force is less than 250N, and the spring control mechanism 3 can accurately open and close.
Automatic mode of operation
Closing motion
After the switch obtains a closing instruction of the controller, closing operation is started from the opening state. In the spring control mechanism 3, the spring is stored by the motor, and the closing spring and the opening spring are stored simultaneously. After the energy storage of the two springs is finished, the cooperation of the closing stop pin is removed through the operating force of the motor, the closing springs release energy, and the switch is closed.
Brake release action
After the switch obtains the opening command of the controller, the opening action is started from the closing state. (in the closing state, the opening spring is stored energy, the cooperation of the opening stop pin is removed by exciting the tripping coil, the opening spring releases energy, and the switch is opened.
In a preferred embodiment, the device further comprises a ground terminal 9, and the ground terminal 9 is connected with the housing 1.
In a preferred embodiment, the insulation arm 6 is connected with an opening and closing indicator needle 10.
In a preferred embodiment, three input conductive rods 2 and three output conductive rods 2 are connected to the sleeve 11, respectively.
In a preferred embodiment, the plug 4 is a waterproof plug.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (5)
1. A high voltage ac bypass switch comprising: the device comprises a shell, a conducting rod, a spring control mechanism, a plug, a first control circuit, a second control circuit and a third control circuit, wherein the conducting rod, the spring control mechanism, the plug, the first control circuit, the second control circuit and the third control circuit are arranged on the shell;
the conducting rods are divided into three input conducting rods and three output conducting rods, the output conducting rods are correspondingly connected with static contacts on the three input conducting rods through moving contacts, and the moving contacts are connected with insulating arms;
the output end of the spring control mechanism is connected with the insulating arm, and the two input ends of the spring control mechanism are respectively connected with a brake opening handle and a brake closing handle;
the first control circuit comprises an auxiliary switch AUX, a circuit A, a circuit B and a circuit C, wherein the circuit A, the circuit B and the circuit C are respectively connected with corresponding contacts on the plug, and the circuit C is connected with the circuit A or the circuit B through the auxiliary switch AUX;
the second control circuit comprises a limit switch 1LS, a limit switch 2LS, a limit switch 3LS, an operation motor M, a brake separating coil TC, a line D, a line E and a line F;
two ends of the line D are respectively connected with corresponding contacts on the plug, and the line D, the limit switch 1LS, the limit switch 3LS, the operation motor M and the brake separating coil TC are connected in series; the line E is connected in parallel with the line D on two sides of the limit switch 1LS, and the limit switch 2LS is arranged on the line E; one end of the line F is connected with a corresponding contact on the plug, and the other end of the line F is connected with a line D between the operating motor M and the switching-off coil TC;
the third control circuit comprises a line G and a pressure switch PS, two ends of the line E are respectively connected with corresponding contacts on the plug, and the pressure switch PS is connected with the line G.
2. The high voltage ac bypass switch of claim 1, further comprising a ground terminal, the ground terminal being connected to the housing.
3. The high voltage ac bypass switch of claim 1, wherein the insulating arm is connected with an open/close indicator pin.
4. The high voltage ac bypass switch of claim 1, wherein the three input conductive bars and the three output conductive bars are each connected to a bushing.
5. The high voltage ac bypass switch of claim 1, wherein the plug is a waterproof plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320100946.XU CN220041650U (en) | 2023-02-02 | 2023-02-02 | High-voltage AC bypass switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320100946.XU CN220041650U (en) | 2023-02-02 | 2023-02-02 | High-voltage AC bypass switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220041650U true CN220041650U (en) | 2023-11-17 |
Family
ID=88732847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320100946.XU Active CN220041650U (en) | 2023-02-02 | 2023-02-02 | High-voltage AC bypass switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220041650U (en) |
-
2023
- 2023-02-02 CN CN202320100946.XU patent/CN220041650U/en active Active
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