CN209819192U - Accurate lubricating arrangement of isolation switch - Google Patents
Accurate lubricating arrangement of isolation switch Download PDFInfo
- Publication number
- CN209819192U CN209819192U CN201920558633.2U CN201920558633U CN209819192U CN 209819192 U CN209819192 U CN 209819192U CN 201920558633 U CN201920558633 U CN 201920558633U CN 209819192 U CN209819192 U CN 209819192U
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- Prior art keywords
- stainless steel
- relay
- isolation switch
- switch
- oil
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- 238000002955 isolation Methods 0.000 title claims abstract description 50
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 26
- 239000010935 stainless steel Substances 0.000 claims abstract description 26
- 238000005461 lubrication Methods 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 239000012530 fluid Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 32
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 241000221535 Pucciniales Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides an accurate lubricating arrangement of isolation switch belongs to electrical equipment technical field, including oiling mechanism, the control unit and power, oiling mechanism includes the batch oil tank, the oil pump of being connected with the batch oil tank, stainless steel house steward with oil pump interface connection, a plurality of capillary stainless steel pipes of being connected with stainless steel house steward, and set up the hydraulic fluid port that drips on a plurality of capillary stainless steel pipes, the control unit includes the control box, set up time relay, auxiliary relay, thermal overload relay and ac contactor in the control box, set up manual/automatic transfer switch, start button, stop button, power indicator and operation pilot lamp on the chamber door of control box, power, ac contactor, thermal overload relay with the oil pump connects gradually. The utility model discloses can realize carrying out the oiling lubrication to the key point of isolation switch, reduce isolation switch deciliter resistance, improve substation equipment operational reliability.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, concretely relates to accurate lubricating arrangement of isolation switch.
Background
In a traditional open-type transformer substation, primary equipment is mostly arranged in an outdoor open-type high-altitude mode, and is easily corroded and damaged by the natural environment, and the equipment is seriously corroded. The isolation disconnecting link is one of important electrical devices in a transformer substation and mainly plays a role in isolating a power supply and switching a bus, and the safety operation of a human body, a power grid and equipment is directly influenced by the quality of the isolation disconnecting link.
Because of the simple operating principle and structure of the isolation knife switch, strict maintenance period regulations are not usually provided. The main equipment overhaul is generally carried out along with the main equipment overhaul according to the common practice, and simultaneously along with the oil-free transformation of the circuit breaker and the gradual transition from the regular overhaul system to the state overhaul system of the power transformation equipment in recent years, the overhaul period of the main equipment is gradually prolonged, so that the problem of the isolation disconnecting link in operation is greatly increased, and the power supply reliability and the safety of a system are directly influenced.
Due to the influence of factors such as production process, overdue maintenance and the like, the problems of jamming of a transmission part, oxidation of a contact, dirt and the like easily occur in the operation of the high-voltage isolation switch, because the overhaul is not in place, the high-voltage isolation switch is difficult to be switched on and off and the moving contact is covered by dirt in a large area, a person on duty needs to operate after receiving a working command, only the force-adding rod and the ultra-large moment are used, the connecting rod, the transmission connecting part, the switch contact rack supporting piece and the like are deformed due to overlarge stress, the switch contact rack supporting piece and the like are seriously broken due to insufficient strength, the porcelain bottle is broken, even if the isolation switch is closed, the contact resistance of the contact is increased due to dirt attached to the contact, so that the conductive part of the isolation switch is overheated to cause equipment damage, and in order to avoid similar accidents, an operator can spray corresponding lubricating oil on the rotating part of the isolation switch to lubricate the rotating part of the isolation switch.
In the conventional electrified normalizing operation of the isolation switch, the ground potential operation can be adopted for the rotating parts below the isolation switch insulating support, the operation is relatively easy, but the lubricating effect is greatly reduced due to the fact that the ground view is not wide enough. Lubrication of a rotating part above an insulating support of the isolation switch and cleaning of a moving contact can only be carried out by equipotential ascending operation, so that the work difficulty is high, and safety accidents are easily caused.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the technical problem that an accurate lubricating arrangement of isolation switch is provided to realize carrying out the oiling lubrication to the key point of isolation switch, reduce isolation switch deciliter resistance, improve substation equipment operational reliability.
In order to achieve the above object, the utility model adopts the following technical scheme:
the accurate lubricating device for the isolation disconnecting link comprises an oil injection mechanism, a control unit and a power supply, wherein the oil injection mechanism comprises an oil storage tank, an oil pump connected with the oil storage tank, a stainless steel main pipe connected with an interface of the oil pump, a plurality of capillary stainless steel pipes connected with the stainless steel main pipe and oil dripping ports arranged on the capillary stainless steel pipes,
the control unit comprises a control box, a time relay, an intermediate relay, a thermal overload relay and an alternating current contactor are arranged in the control box, a manual/automatic change-over switch, a start button, a stop button, a power indicator and an operation indicator are arranged on a box door of the control box, the manual/automatic change-over switch, the stop button, the start button and the intermediate relay are connected in series to form a manual control circuit, the manual/automatic change-over switch and the time relay are connected in series to form an automatic control circuit,
the power supply, the alternating current contactor and the thermal overload relay are sequentially connected with the oil pump.
Preferably, the number of the capillary stainless steel tubes is more than 3.
Preferably, the oil dripping port is arranged at an easy-rusting port of the isolation switch.
Preferably, the time relay is a DH48S-S-2Z digital display time relay.
Preferably, the type of the thermal overload relay is NR 2-25.
Preferably, the alternating current contactor has a model number CJX 2-0910.
Preferably, the power supply is an S-200-24 switching power supply.
Compared with the prior art, the utility model, its beneficial effect as follows:
the utility model provides an accurate lubricating arrangement of isolation switch based on prior art can realize automatic to isolation switch interpolation lubricating oil, also can realize manual opening equipment, for isolation switch interpolation lubricating oil, uses this equipment when making things convenient for unmanned on duty and maintenance, and two kinds of modes form complementarily, and effectual prevention can not divide-shut switch's hidden danger because of the corrosion of isolation switch key point.
The utility model discloses set up oil storage tank, oil pump and control box on the vertical connecting rod of isolation switch, connect out the stainless steel house steward by the oil pump interface and extend to the ground potential and divide out a plurality of capillary stainless steel pipes and insert the easy rust port of isolation switch in proper order, this device sets up manual and automatic two kinds of control modes simultaneously, under the manual state, can press the start button at any time and start the oil pump, press the stop button and stop the oil pump; in the automatic state, a time relay is arranged to control the oil pump to stop for m time and start for n time, for example, stop for 10 hours and start for 3 seconds. The device can realize the complementary use under two conditions of manual inspection and unattended operation, and can avoid the working personnel to be close to the isolation switch blade for operation, thus being beneficial to the personal safety of the protection working personnel.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1: the utility model discloses a schematic structural diagram of an isolation switch accurate lubricating device;
FIG. 2: the utility model discloses a part of the structure schematic diagram of the isolation switch accurate lubricating device;
FIG. 3: the utility model discloses a control scheme diagram of an isolation switch accurate lubricating device;
FIG. 4: the circuit structure diagram of the isolation switch accurate lubricating device of the utility model;
wherein: 1-power supply, 2-oil storage tank, 3-oil pump, 4-stainless steel manifold, 5-capillary stainless steel pipe, 6-oil dripping port, 7-control box, 8-time relay, 9-intermediate relay, 10-thermal overload relay, 11-alternating current contactor, 12-manual/automatic change-over switch, 13-start button, 14-stop button, 15-power indicator, 16-running indicator, 17-vertical connecting rod, 18-horizontal connecting rod and 19-pillar insulator.
Detailed Description
For a better understanding of the present invention, the contents of the present invention will be further clarified below by referring to examples, but the present invention is not limited to the following examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.
Example 1
Referring to fig. 1-4, the isolation switch accurate lubricating device comprises an oil injection mechanism, a control unit and a power supply 1, wherein the oil injection mechanism comprises an oil storage tank 2, an oil pump 3 connected with the oil storage tank, a stainless steel main pipe 4 connected with an oil pump interface, a plurality of capillary stainless steel pipes 5 connected with the stainless steel main pipe, and oil dripping ports 6 arranged on the plurality of capillary stainless steel pipes,
the control unit comprises a control box 7, a time relay 8, an intermediate relay 9, a thermal overload relay 10 and an alternating current contactor 11 are arranged in the control box, a manual/automatic change-over switch 12, a start button 13, a stop button 14, a power indicator 15 and an operation indicator 16 are arranged on a box door of the control box, the manual/automatic change-over switch, the stop button, the start button and the intermediate relay are connected in series to form a manual control circuit, the manual/automatic change-over switch and the time relay are connected in series to form an automatic control circuit,
the power supply, the alternating current contactor, the thermal overload relay and the oil pump are electrically connected in sequence.
Wherein, the oil storage tank, the oil pump and the control box are all arranged on a vertical connecting rod 17 of the isolation disconnecting link, the capillary stainless steel pipe depends on the vertical connecting rod and extends upwards to a horizontal connecting rod 18 of the isolation disconnecting link, and the oil dropping port is aligned with the port easy to rust. The capillary stainless steel tube is at ground potential. The horizontal link is provided with a post insulator 19.
As the preferred embodiment of the present invention, the number of the capillary stainless steel pipes is 3 or more, for example, 3, 4, 5, and the design is performed in combination with the structure of the isolation switch and the actual needs.
The position of the oil dripping port is designed according to the position of the port which is easy to rust.
As the utility model discloses a preferred embodiment, DH48S-S-2Z (model) digital display time relay is preferred to the time relay, and the function is 2 time delay relay outputs, and the market is bought and is obtained.
As a preferred embodiment of the present invention, the thermal overload relay has a model number of NR 2-25.
As a preferred embodiment of the present invention, the ac contactor has model number CJX 2-0910.
As a preferred embodiment of the utility model, the power supply adopts an S-200-24 switching power supply.
The utility model discloses a main innovation point:
1) unattended operation: and starting the equipment at regular intervals, operating for a certain time, injecting lubricating oil into the isolation switch, and then restarting the next period. Manual switching: under the condition of overhauling or needing to inject lubricating oil, the equipment can be started by one key, and the equipment runs for a certain time, so that the operation of workers is facilitated. The two modes are complementary, and the hidden trouble that the switch can not be switched on and switched off due to corrosion of key points of the isolation disconnecting link is effectively prevented.
2) The delay time and the equipment running time can be set, and various maintenance tasks can be conveniently executed by matching with workers.
This device adopts stainless steel capillary steel pipe as lubricating oil pipeline, avoids leading to the oiling work to go on effectively because of factors such as pipeline rust, ageing.
The device is applied to power supply companies in Shen hill county of power company in Henan province of the national network in 2018 in 9 months, and expected effects are achieved. During the operation, oil injection is manually controlled for 4 times aiming at the lubrication point of the isolation switch, and the oil injection work is automatically started for three times according to a set time period. In the test operation process of the device, various expected functions are realized, the transmission part of the isolation switch is well maintained, and the faults of heating of the contact part of the isolation switch, refusing opening (closing) of the isolation switch, rusting of parts and the like are obviously reduced.
Because present transformer substation is mostly unmanned station on duty, if find that this station internal isolation switch contact rusts or leads to generating heat, because of reasons such as geographical position, staff, before professional teams and groups arrive the station and maintain, the operating personnel can't strengthen paying attention to it at any time, this probably makes hidden danger further enlarge. The application of the accurate lubricating arrangement of isolation switch lets us operating personnel when patrolling and discovering that isolation switch contact rusts the card puckery, can start device at any time and lubricate the maintenance, in time eliminates hidden danger. Meanwhile, the device can be started at regular time, automatic lubrication maintenance is carried out in a reasonable period, the isolation disconnecting link is maintained regularly, and the hidden trouble is reduced. Therefore, the device has good application prospect and popularization value.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (7)
1. Keep apart accurate lubricating arrangement of switch, its characterized in that: comprises an oil injection mechanism, a control unit and a power supply, wherein the oil injection mechanism comprises an oil storage tank, an oil pump connected with the oil storage tank, a stainless steel main pipe connected with an interface of the oil pump, a plurality of capillary stainless steel pipes connected with the stainless steel main pipe, and oil dripping ports arranged on the capillary stainless steel pipes,
the control unit comprises a control box, a time relay, an intermediate relay, a thermal overload relay and an alternating current contactor are arranged in the control box, a manual/automatic change-over switch, a start button, a stop button, a power indicator and an operation indicator are arranged on a box door of the control box, the manual/automatic change-over switch, the stop button, the start button and the intermediate relay are connected in series to form a manual control circuit, the manual/automatic change-over switch and the time relay are connected in series to form an automatic control circuit,
the power supply, the alternating current contactor and the thermal overload relay are sequentially connected with the oil pump.
2. The isolating switch accurate lubrication device of claim 1, wherein: the number of the capillary stainless steel tubes is more than 3.
3. The isolating switch accurate lubrication device of claim 2, wherein: the oil dripping port is arranged at the port of the isolation switch, which is easy to rust.
4. The isolating switch accurate lubrication device of claim 3, wherein: the time relay is a DH48S-S-2Z digital display time relay.
5. The isolating switch accurate lubrication device of claim 4, wherein: the model of the thermal overload relay is NR 2-25.
6. The isolating switch accurate lubrication device of claim 5, wherein: the alternating current contactor is of a model number CJX 2-0910.
7. The isolating switch precision lubricating device of any one of claims 1-6, wherein: the power supply is an S-200-24 switching power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558633.2U CN209819192U (en) | 2019-04-23 | 2019-04-23 | Accurate lubricating arrangement of isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558633.2U CN209819192U (en) | 2019-04-23 | 2019-04-23 | Accurate lubricating arrangement of isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209819192U true CN209819192U (en) | 2019-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920558633.2U Active CN209819192U (en) | 2019-04-23 | 2019-04-23 | Accurate lubricating arrangement of isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209819192U (en) |
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2019
- 2019-04-23 CN CN201920558633.2U patent/CN209819192U/en active Active
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