CN202676862U - Damping resistor automatic switching device - Google Patents
Damping resistor automatic switching device Download PDFInfo
- Publication number
- CN202676862U CN202676862U CN 201220331120 CN201220331120U CN202676862U CN 202676862 U CN202676862 U CN 202676862U CN 201220331120 CN201220331120 CN 201220331120 CN 201220331120 U CN201220331120 U CN 201220331120U CN 202676862 U CN202676862 U CN 202676862U
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- CN
- China
- Prior art keywords
- damping resistance
- driving rack
- damping resistor
- track
- transmission gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a mechanical automatic transmission device, and particularly relates to a damping resistor automatic switching device. Structural features of the device are that the device comprises a damping resistor branch circuit, a bypass electrode branch circuit, a transmission gear component and a device frame. The switching of a damping resistor in connecting and withdrawing processes is realized through a mechanical motion mode, and the safe operations of a standard capacitor in connecting and withdrawing processes are ensured. The damping resistor branch circuit only plays a role in a transient state process of connecting a high voltage conducting wire, after connection is completed, the damping resistor branch circuit is bypassed automatically, and the measurement data is not affected. While in a high voltage electrode separation process, the damping resistor is automatically connected, and the role of the damping resistor is played again. The device has the advantages of simple structure, no need of power control, and safe and reliable operation, the interference and influence on the standard capacitor in the connecting and withdrawing processes can be reduced as much as possible, the damping resistor is connected while being needed and is disconnected while being not needed, and the safe connection and withdrawing of the standard capacitor are fully realized.
Description
Technical field
The utility model relates to a kind of machine automatization gearing, particularly a kind of damping resistance automatic switching control equipment.
Background technology
At the scene in high-potting and the on-line insulation monitoring device, sometimes need to provide the accurately voltage source of voltage-phase and amplitude, detect for use in insulation parameter accurately.Adopting standard capacitance dividing potential drop mode to obtain accurate voltage is a kind of very effective mode, in general bleeder mechanism all will could access bus under power down mode, in order to realize accessing safely and effectively and withdraw from bus under the electriferous state, and developed a kind of band electric angle ratio measurement mechanism, this device need to access high voltage standard capacitor operating system, but simply high voltage standard capacitor is accessed high-pressure system can cause serious transient state process, the transient overvoltage amplitude that occurs is higher, the danger of breakdown potential container major insulation is arranged when serious, therefore the transient overvoltage in the time of must taking measures the suppression capacitor access is to guarantee safe access.When capacitor access high-pressure conductor, but in its transient state process of capacitor loops installing damping resistance establishment, the decrease Overvoltage Amplitude is guaranteed the safety access and is withdrawed from.Damping resistance is after the capacitor access is finished, and its resistance can produce the extra voltage angular difference, affects the secondary voltage precision.Therefore must be with the damping resistance bypass.In order to obtain more high-precision voltage source signal.Yet, damping resistance need to high-voltage conducting wires near and touch, have safe access problem, therefore need to provide a kind of automatic switchover system to operate.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, and proposes a kind of charged switching damping resistance of can realizing, safe and effective damping resistance automatic switching control equipment.
The utility model is realized by following approach:
Damping resistance automatic switching control equipment, its structural feature are, include damping resistance branch road, bypass electrode branch road, transmission gear member and device framework; The device framework is installed on the jacking gear, has two groups of track-type facilitiess in its framework, and these two groups of parallel distributions of track-type facilities also are installed in respectively the both sides of transmission gear member; The damping resistance branch road includes damping resistance member and the first driving rack, the damping resistance member supports is installed in the top ends of the first driving rack, and be positioned at the top of device framework, wherein one group of track-type facilities is passed in the lower end of the first driving rack, and is in transmission connection with a side of transmission gear member; The bypass electrode branch road includes bypass electrode member, the second driving rack and counter weight device, the bypass electrode member supports is installed in the top ends of the second driving rack, and be positioned at the top of device framework, another group track-type facilities is passed in the lower end of the second driving rack, and be in transmission connection with the opposite side of transmission gear member, in the bottom of this second driving rack counter weight device is installed.
Like this, just formed a kind of mechanical linkage structure by the first driving rack, the second driving rack and transmission gear member, the device framework is a kind of conduction framework, can conduct electricity and mainly is electrically connected jacking gear and damping resistance branch road and bypass electrode branch road, and its specific works principle is as follows:
1, under normal condition, because counter weight device is a kind of gravity block with certain mass, the bypass electrode branch road is in the falling-threshold position all the time under the effect of this counter weight device like this, makes left side damping resistance be in all the time the rising extreme position under the engagement limits of mechanical linkage structure.
2, when carrying out access operation, jacking gear begins to rise, and rising by the driving device framework drives the up lifting of damping resistance member, in case top damping resistance member runs into the top high-voltage conducting wires when stopping, just can stop to rise, finish the technique effect of its establishment transient state process; This moment, jacking gear then continued lifting, cause relative top high-voltage conducting wires that the damping resistance member is produced a downward pressure, force the downward relative motion of damping resistance member, whole damping resistance member began relatively to install framework and moved downward this moment, transmission gear member rotation in the middle of below the first driving rack drives in moving downward process, and then drive the second driving rack and begin rising, drive the right bypass electrode member by the second driving rack and upwards rise.
3, when bypass electrode rises and touches the top high-voltage conducting wires, also can be subjected to the barrier effect of wire, make the bypass electrode branch road also stop upward movement, this moment, bypass electrode member and damping resistance member touched high-voltage conducting wires simultaneously, and damping resistance is bypassed.This moment, jacking gear stopped upward movement, and access procedure finishes.
4, when withdrawing from operation, its process is then with above-mentioned just in time opposite, jacking gear begins to descend, because the effect of counter weight device, left and right sides both arms counterweight is uneven, the bypass electrode branch road will descend and separate with wire with jacking gear, the bypass electrode branch road descends and drives the middle transmission gear member rotation in below by the second driving rack transmission, and then drive the lifting that makes progress of the first driving rack, the damping electrode member is then constantly risen in support, and remain the contact condition of wire; When the bypass electrode branch road reached the lower limit lowest order, the damping electrode no longer rose, and jacking gear is driving device framework and the together landing downwards of damping resistance branch road just, separates with high-voltage conducting wires gradually and finishes the whole process that withdraws from operation, and the process that withdraws from finishes.
Damping resistance automatic switching control equipment described in the utility model has realized that by mechanical motion mode damping resistance is in access and the switching of withdrawing from the process, avoid adopting the switching device shifter of circuit structure, guaranteed standard capacitance access and the safe operation of withdrawing from process, and not disturbed and impact.Described damping resistance branch road only plays a role in the transient state process of access high-voltage conducting wires, and after access is finished, then automatically is bypassed, and makes measurement data unaffected.And in the high-field electrode separation process, automatically access again damping resistance, again bring into play the effect of damping resistance.This apparatus structure is simple, need not power control, handling safety is reliable, can reduce as far as possible standard capacitance access and interference and the impact of withdrawing from process, guaranteed at the moment of needs access damping resistance, disconnect damping resistance when not required, realized that fully the safety of standard capacitor accesses and withdraws from.
The utility model can further be specially:
Every group of track-type facilities includes up and down two cover pulley blockss of vertical distribution, and every cover pulley blocks all includes symmetrical two pulleys, two middle guide holes that are provided with adaptive the first driving rack and the second driving rack of pulley.
The center of the guide hole of two of vertical distribution cover pulley blockss is on the same axis up and down, forms the member of two one lines, and such the first driving rack and the second driving rack just can be realized linear movement.
The up and down two cover pulley blockss of every group of track-type facilities are distributed in respectively the above and below of transmission gear member.
Like this, can be so that whole mechanical linkage structure be compact, operational reliability greatly improves.
In sum, the utility model provides a kind of damping resistance automatic switching control equipment, realized that by mechanical motion mode damping resistance is in access and the switching of withdrawing from the process, damping resistance is only played a role in the transient state process of access high-voltage conducting wires, and after access is finished, then automatically be bypassed, make measurement data unaffected.And in the high-field electrode separation process, automatically access again damping resistance, again bring into play the effect of damping resistance.This device is realized switching by thrust and counterweight, need not provides power to control in addition, simple in structure, be easy to process and make, to need to preferably applicability being arranged by the occasion that damping resistance suppresses transient overvoltage and the high pressure of the capacitive apparatus of the control that tightens security accesses.
Description of drawings
Fig. 1 is the structural representation of damping resistance automatic switching control equipment described in the utility model;
Fig. 2 is the structural representation of damping resistance automatic switching control equipment described in the utility model when finishing access procedure;
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment
Most preferred embodiment:
With reference to accompanying drawing 1, the damping resistance automatic switching control equipment includes damping resistance branch road 1, bypass electrode branch road 2, transmission gear member 3 and device framework 4; Device framework 4 is a kind of metal frame, be installed on the jacking gear, have two groups of track-type facilitiess in its framework, every group of track-type facilities includes vertical distribution up and down, and is distributed in respectively two cover pulley blockss 5 of transmission gear member 3 above and belows, every cover pulley blocks all includes symmetrical two pulleys, two middle guide holes that are provided with adaptive following the first driving rack and the second driving rack of pulley.
Damping resistance branch road 1 includes damping resistance member and the first driving rack 11, the damping resistance member includes arc support 12 and damping resistance 13, damping resistance 13 supports the top ends that is installed in the first driving rack 11, and be positioned at the top of device framework 4, the lower end of the first driving rack 11 is passed in the pulley blocks guide hole of one group of track-type facilities wherein, and is in transmission connection with a side of transmission gear member 3.
Bypass electrode branch road 2 includes bypass electrode member, the second driving rack 21 and counter weight device 24, the bypass electrode member includes bracing frame 22 and bypass electrode 23, bracing frame 22 supports the top ends that is installed in the second driving rack 21, and be positioned at the top of device framework 4, the lower end of the second driving rack 21 is passed in the pulley blocks guide hole of another group track-type facilities, and be in transmission connection with the opposite side of transmission gear member 3, in the bottom of this second driving rack 21 counter weight device 24 is installed.
The specific works principle is described referring to the utility model content, and Fig. 2 has described the structural representation when the damping resistance automatic switching control equipment is finished access procedure after rising, and it is same as the prior art that the utility model is not stated part.
Claims (3)
1. damping resistance automatic switching control equipment, its structural feature are, include damping resistance branch road, bypass electrode branch road, transmission gear member and device framework; The device framework is installed on the jacking gear, has two groups of track-type facilitiess in its framework, and these two groups of parallel distributions of track-type facilities also are installed in respectively the both sides of transmission gear member; The damping resistance branch road includes damping resistance member and the first driving rack, the damping resistance member supports is installed in the top ends of the first driving rack, and be positioned at the top of device framework, wherein one group of track-type facilities is passed in the lower end of the first driving rack, and is in transmission connection with a side of transmission gear member; The bypass electrode branch road includes bypass electrode member, the second driving rack and counter weight device, the bypass electrode member supports is installed in the top ends of the second driving rack, and be positioned at the top of device framework, another group track-type facilities is passed in the lower end of the second driving rack, and be in transmission connection with the opposite side of transmission gear member, in the bottom of this second driving rack counter weight device is installed.
2. damping resistance automatic switching control equipment according to claim 1, it is characterized in that, every group of track-type facilities includes up and down two cover pulley blockss of vertical distribution, every cover pulley blocks all includes symmetrical two pulleys, two middle guide holes that are provided with adaptive the first driving rack and the second driving rack of pulley.
3. damping resistance automatic switching control equipment according to claim 2 is characterized in that, the up and down two cover pulley blockss of every group of track-type facilities are distributed in respectively the above and below of transmission gear member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220331120 CN202676862U (en) | 2012-07-10 | 2012-07-10 | Damping resistor automatic switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220331120 CN202676862U (en) | 2012-07-10 | 2012-07-10 | Damping resistor automatic switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202676862U true CN202676862U (en) | 2013-01-16 |
Family
ID=47497759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220331120 Withdrawn - After Issue CN202676862U (en) | 2012-07-10 | 2012-07-10 | Damping resistor automatic switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202676862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736004A (en) * | 2012-07-10 | 2012-10-17 | 福建省电力有限公司电力科学研究院 | Automatic switching device of damping resistor |
-
2012
- 2012-07-10 CN CN 201220331120 patent/CN202676862U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736004A (en) * | 2012-07-10 | 2012-10-17 | 福建省电力有限公司电力科学研究院 | Automatic switching device of damping resistor |
| CN102736004B (en) * | 2012-07-10 | 2014-09-03 | 国家电网公司 | Automatic switching device of damping resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20140903 |
|
| RGAV | Abandon patent right to avoid regrant |