CN207183153U - The on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism - Google Patents
The on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism Download PDFInfo
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- CN207183153U CN207183153U CN201720693526.1U CN201720693526U CN207183153U CN 207183153 U CN207183153 U CN 207183153U CN 201720693526 U CN201720693526 U CN 201720693526U CN 207183153 U CN207183153 U CN 207183153U
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Abstract
A kind of on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism, it is characterized in that：The piston hole for running through cylinder body in left-right direction is provided with delay cylinder body, governor valve stem and valve seat are installed on the left side of piston hole, it is series at the normally opened microswitch of separating brake control loop, it is arranged at by support on the right side of delay cylinder body, the transmission contact that can be moved along a straight line in left-right direction is provided with normally opened microswitch, the piston moved along axis left and right directions is provided with delay cylinder body, the guide sleeve passed for piston guide is provided with the right side of piston, composite sealing ring and dust ring are provided between guide sleeve and piston, right side extension bar and the sliding block of piston are connected through a screw thread, transmission contact is coaxially set with piston and sliding block, the utility model has the advantages that directly it is arranged on secondary valve, conjunction point interval long enough is can guarantee that when operating mechanism carries out on/off switch operation, it is and adjustable in prescribed limit between conjunction timesharing.
Description
Technical field
High-voltage switch gear technical field is the utility model is related to, particularly a kind of on/off switch of high-voltage breaker operation mechanism prolongs
When hydraulic means.
Background technology
When primary cut-out, which close, divides operation, it is necessary to assure the conjunction of breaker point interval long enough, make breaker
Contact closes a floodgate on earth, and ensures that the gas pressure in arc-chutes cylinder, air cylinder volume could enter again after returning to normal condition
Row separating brake grasps the work of road device, to ensure disconnected break performance.Because the actuation time of relay protection of power system is shorter, should not lead to
Cross and artificially extend the protective relaying device time to reach the purpose extended between conjunction timesharing, but breaker actuating machine should be passed through
The structure of structure itself ensures, therefore needs in the operating mechanism of breaker to set time delay module.Existing hydraulic actuating mechanism
On/off switch delay function mainly realized by two ways：Auxiliary switch with on/off switch delay function and fluid pressure type on/off switch
Time-delay mechanism, and the auxiliary switch with on/off switch delay function is there is cost is higher, structure is more complicated, and reliability is inadequate
Shortcoming.
The content of the invention
The purpose of this utility model is to provide a kind of structure optimization, stable performance, safe and reliable, is closed in hydraulic mechanism
During sub-switching operation, the on/off switch delay closed point interval long enough and close adjustable high-voltage breaker operation mechanism between timesharing can ensure that
Hydraulic means.
The utility model is achieved in that it includes delay cylinder body, the first oil circuit, the second oil circuit, radial hole, flow speed control valve
Bar, valve seat, axial hole, piston, composite sealing ring, dust ring, guide sleeve, sliding block, support, transmission contact and microswitch, its
It is characterized in：The piston hole for running through cylinder body in left-right direction is provided with delay cylinder body, governor valve stem and valve seat are installed on piston hole
Left side, be series at the normally opened microswitch of separating brake control loop, be arranged at by support on the right side of delay cylinder body, in normally opened fine motion
The transmission contact that can be moved along a straight line in left-right direction is provided with switch, has been provided with along axis left and right directions and has transported on the cylinder body that is delayed
Dynamic piston, piston left side are rodless side, and to there is bar side, piston right side is provided with the guide sleeve passed for piston guide on right side,
Composite sealing ring and dust ring are provided between guide sleeve and piston, right side extension bar and the sliding block of piston are connected through a screw thread,
Transmission contact is coaxially set with piston and sliding block, and hydraulic circuit is including the first oil circuit for being connected with the Z mouths of secondary valve and with two
The second connected oil circuit of the P mouths of step valve, string is provided with governor valve stem on the first oil circuit.
Be provided with the valve seat of governor valve stem axially extending hole in left-right direction and along piston hole vertical direction extension
Radial hole, radial hole and axial hole communicate, and governor valve stem is arranged on axial hole left end, can be with by moving left and right for governor valve stem
Adjust axial hole, the through-current capacity of radial hole.
The utility model has the advantages that being directly arranged on secondary valve, can guarantee that when operating mechanism carries out on/off switch operation
A point interval long enough is closed, and it is adjustable in prescribed limit between conjunction timesharing, the structure of hydraulic delay device is simple in addition, and performance is steady
It is fixed, make breaker that there is self-defense capability.
Brief description of the drawings
The utility model is further described below in conjunction with accompanying drawing；
Fig. 1 is the structural representation of the on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism.
Embodiment
The on/off switch time delaying hydraulic device of the high-voltage breaker operation mechanism includes delay cylinder body 1, the first oil circuit 2, second
Oil circuit 3, radial hole 4, governor valve stem 5, valve seat 6, axial hole 7, piston 8, composite sealing ring 9, dust ring 11, guide sleeve 10, cunning
Block 12, support 13, contact 14 and microswitch 15 are driven, the piston moved along axis left and right directions is provided with the cylinder body 1 that is delayed
8, the left side of piston 8 is rodless side, and to there is bar side, the right side of piston 8 is provided with the guide sleeve 10 passed for piston guide, is oriented on right side
Composite sealing ring 9 and dust ring 11 are provided between set 10 and piston 8, right side extension bar and the sliding block 12 of piston 8 pass through screw thread
Connection；Transmission contact 14 be coaxially set with piston 8 and sliding block 12, when sliding block 12 moves right can pushing tow be driven contact 14 a left side
End is to make microswitch 15 switch to close by off-state, so that separating brake control loop turns on；It is series at separating brake control loop
Normally opened microswitch 15, be arranged at by support 13 on the right side of delay cylinder body, being provided with normally opened microswitch 15 can be along left and right
The transmission contact 14 of direction linear motion；Hydraulic circuit include the first oil circuit 2 for being connected with the Z mouths of secondary valve and with secondary valve
The second connected oil circuit 3 of P mouths, string is provided with governor valve stem 5 on the first oil circuit 2.
Axially extending hole 7 in left-right direction is provided with the valve seat 6 of governor valve stem 5 and is extended along piston hole vertical direction
Radial hole 4, radial hole 4 and axial hole 7 communicate, and governor valve stem 5 is arranged on axial hole left end, passes through the left and right of governor valve stem 5
Movement can adjust axial hole 7, the through-current capacity of radial hole 4.
When hydraulic pressure spring operating mechanism is gate-dividing state, the Z mouths of secondary valve are low-pressure state, and P mouths are normal high pressure conditions,
The piston 8 of delay cylinder body 1 contacts with left side valve seat 6, sliding block 12 and the contact separation of microswitch 15, and microswitch is disconnection shape
State, sub-gate circuit are also off-state, and mechanism is unable to separating brake.When mechanism is connected to switching signal, the Z mouths of secondary valve are turned by low pressure
Change high pressure into, the dynamic and static contact of mechanism driving breaker is closed a floodgate, and the first oil circuit being now connected with the Z mouths of secondary valve is also changed
Into high pressure, delay cylinder body 1 connect with system high pressure, piston 8 in the presence of the pressure differential of left and right with movable slider 12 together to the right
Lateral movement, due to the effect of governor valve stem 5, mechanism first drives breaker to complete feed motion, in place and prolongs in breaker closing
When certain time after, delay cylinder body 1 the bar of piston 8 can hold fine motion with the transmission contact 14 of the pushing tow microswitch 15 of movable slider 12
Close 15 and closure state is switched to by off-state, connect separating brake control loop, at this moment hydraulic actuating mechanism could carry out sub-switching operation,
This completes the conjunction of breaker point operation.By adjusting the axial movement of governor valve stem 5, can control in delay cylinder body 1
Piston 8 act speed, it is adjustable within the limits prescribed between the conjunction timesharing of breaker to realize.
Claims (2)
1. a kind of on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism, it includes delay cylinder body, the first oil circuit, second
Oil circuit, radial hole, governor valve stem, valve seat, axial hole, piston, composite sealing ring, dust ring, guide sleeve, sliding block, support, transmission
Contact and microswitch, it is characterized in that：Delay cylinder body in be provided with left-right direction run through cylinder body piston hole, governor valve stem and
Valve seat is installed on the left side of piston hole, is series at the normally opened microswitch of separating brake control loop, and delay cylinder is arranged at by support
On the right side of body, the transmission contact that can be moved along a straight line in left-right direction is provided with normally opened microswitch, is provided with the cylinder body that is delayed
The piston moved along axis left and right directions, is provided with the guide sleeve passed for piston guide on the right side of piston, guide sleeve and piston it
Between be provided with composite sealing ring and dust ring, right side extension bar and the sliding block of piston are connected through a screw thread, and are driven contact and piston
It is coaxially set with sliding block, hydraulic circuit includes the first oil circuit for being connected with the Z mouths of secondary valve and is connected with the P mouths of secondary valve
Second oil circuit, string is provided with governor valve stem on the first oil circuit.
2. the on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism according to claim 1, it is characterized in that：Speed governing
Axially extending hole in left-right direction is provided with the valve seat of valve rod and along the radially extending hole of piston hole vertical direction, radial hole
Communicated with axial hole, governor valve stem is arranged on axial hole left end, and axial hole, footpath can be adjusted by moving left and right for governor valve stem
To the through-current capacity in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693526.1U CN207183153U (en) | 2017-06-15 | 2017-06-15 | The on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720693526.1U CN207183153U (en) | 2017-06-15 | 2017-06-15 | The on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207183153U true CN207183153U (en) | 2018-04-03 |
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ID=61734877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720693526.1U Active CN207183153U (en) | 2017-06-15 | 2017-06-15 | The on/off switch time delaying hydraulic device of high-voltage breaker operation mechanism |
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| CN (1) | CN207183153U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979770A (en) * | 2019-05-13 | 2019-07-05 | 梁仓平 | High-tension circuit safe opening method is made using timing closing mode |
| CN110022142A (en) * | 2019-05-13 | 2019-07-16 | 梁仓平 | The time delay control system connected safely applied to high-tension circuit |
| CN110047665A (en) * | 2019-05-13 | 2019-07-23 | 梁仓平 | The automation control method connected safely applied to high-tension circuit |
| CN113541095A (en) * | 2021-06-17 | 2021-10-22 | 国网上海市电力公司 | Circuit breaker control method and device |
-
2017
- 2017-06-15 CN CN201720693526.1U patent/CN207183153U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109979770A (en) * | 2019-05-13 | 2019-07-05 | 梁仓平 | High-tension circuit safe opening method is made using timing closing mode |
| CN110022142A (en) * | 2019-05-13 | 2019-07-16 | 梁仓平 | The time delay control system connected safely applied to high-tension circuit |
| CN110047665A (en) * | 2019-05-13 | 2019-07-23 | 梁仓平 | The automation control method connected safely applied to high-tension circuit |
| CN110022142B (en) * | 2019-05-13 | 2023-09-01 | 梁仓平 | Delay control system applied to safety connection of high-voltage circuit |
| CN113541095A (en) * | 2021-06-17 | 2021-10-22 | 国网上海市电力公司 | Circuit breaker control method and device |
| CN113541095B (en) * | 2021-06-17 | 2024-05-10 | 国网上海市电力公司 | Circuit breaker control method and device |
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