CN106289460A - Main transformer oil level abnormal alarm contact exempts to fill, drain the oil calibration equipment - Google Patents
Main transformer oil level abnormal alarm contact exempts to fill, drain the oil calibration equipment Download PDFInfo
- Publication number
- CN106289460A CN106289460A CN201610648034.0A CN201610648034A CN106289460A CN 106289460 A CN106289460 A CN 106289460A CN 201610648034 A CN201610648034 A CN 201610648034A CN 106289460 A CN106289460 A CN 106289460A
- Authority
- CN
- China
- Prior art keywords
- oil level
- major axis
- fixed component
- oil
- fill
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses a kind of main transformer oil level abnormal alarm contact and exempt to fill, drain the oil calibration equipment, including oil level gauge shell, dial plate, indicators turn axle, pointer, the first bevel gear is filled in oil level gauge shell, on indicators turn axle, first bevel gear and the second bevel gear coordinate, second bevel gear and major axis are unitary form, the tail end of major axis is installed in the fixed component fixing with oil level gauge shell, and described fixed component is threadeded with the case covered by major axis；Arranging the position-limit mechanism that major axis carries out axial limiting in fixed component, pocketed springs on major axis, the rear end of spring is pressed on the rear spring seat of major axis rear portion and major axis one, and the front end of spring is pressed in and is enclosed within major axis and on front spring seat that dial plate is fixing.Present configuration is reasonable, easy to use, effective.
Description
Technical field
The present invention relates to a kind of main transformer oil level abnormal alarm contact and exempt to fill, drain the oil calibration equipment.
Background technology
The transformator used in voltage levels transformer station at present is substantially oil-filled transformer, transformer body part
Having individual fuel reserve tank specially, transformer oil primarily serves following effect:
1, the oil in transformator operationally acts primarily as cooling effect；
2, winding etc. is played insulation and insulation maintenance effect (keeping good insulation state)；
3, transformer oil contacts with shunting switch at high-voltage connection and lights extinguishing arc effect, prevents the product of corona and arc discharge
Raw；
4, the fluid-tight in transformer oil is widely used as deadweight safety valve.
Transformator normal safe is run and plays the most crucial effect by the state of visible transformer oil, and the most general employing exists
Oil level gauge is installed on fuel reserve tank and monitors the state of transformer oil, to ensure the stable operation of transformator.Oil level gauge is to supervise at present
Surveying the main device of transformer oil level state, its structure and operation principle be: 1, oil level indicator structure: oil level indicator is by float connecting rod table
The compositions such as seat magnet steel pointer.Due to oil level indicator gauge stand completely isolated float and pointer, thus ensure that oil level indicator seals can
By property.2, operation principle: when the oil level in oil conservater is raised and lowered due to temperature or other reason, the float of oil level indicator with
Pasta to synchronize to be raised and lowered, thus drive pointer to rotate, the height of instruction oil level.
In order to ensure the accuracy of oil level gauge, after running a period of time, all periodically oil level gauge can be done calibration operation.At present
Mainly by draining the oil, oil-filled oil level gauge is carried out calibration test, or complete the most in the lump oil until transformator is changed oil
The calibration operation of position table.Do so needs to expend the biggest human and material resources, financial resources and the time, and cost is the highest, but also unfavorable
In the stability and the reliability that ensure equipment.
At present transformer oil bit check is mainly with oil-filled and drain the oil and detect oil level indicator and the most normally work.By to transformation
Device is oil-filled makes oil level rise, and drives oil level indicator internal drive mechanism to allow pointer to the highest oil level of oil level indicator, detection by ball float
High oil level contact is the most normal；By draining the oil so that oil level declines, when oil level declines, ball float drives the biography within oil level indicator simultaneously
Motivation structure is by the minimum oil level of pointer to oil level indicator, and detection low oil level contact is the most normal.We are carried out for above practical situation
Analysis and research, improve the drawback of current transformer oil level table verification, investigated a kind of new verification mode: pass through spiral shell
Bar drive mechanism realizes oil level gauge simulation oil level change and abnormal conditions, by magnetic induction, oil level gauge meter is raised or reduces
Making oil level change produce alarm signal, and then verification contact, secondary line, the oil level abnormality alarming of completion alarm device is complete
Verification.Without draining the oil again, oiling.Save human and material resources, financial resources and time, reduce cost, so that set
Standby stability and reliability have had guarantee.
Summary of the invention
It is an object of the invention to provide a kind of rational in infrastructure, easy to use, effective main transformer oil level abnormal alarm connects
Point exempts to fill, drain the oil calibration equipment.
The technical solution of the present invention is:
A kind of main transformer oil level abnormal alarm contact exempts to fill, drain the oil calibration equipment, including oil level gauge shell, dial plate, indicators turn axle,
Pointer, is characterized in that: fill the first bevel gear, the first bevel gear and the second bevel gear in oil level gauge shell, on indicators turn axle
Coordinating, the second bevel gear and major axis are unitary form, and the tail end of major axis is installed in the fixed component fixing with oil level gauge shell,
Described fixed component is threadeded with the case covered by major axis；Fixed component arranges the limit that major axis carries out axial limiting
Position mechanism, pocketed springs on major axis, the rear end of spring is pressed on the rear spring seat of major axis rear portion and major axis one, spring
Front end is pressed in and is enclosed within major axis and on front spring seat that dial plate is fixing；Fixed component is threaded connection with oil level gauge shell.
Described position-limit mechanism includes push button elastic steel ball device, and time spacing, elastic steel ball is stuck in the circumferential recess of major axis
In.
Between described fixed component and oil level gauge shell, sealing ring is set.
Between described fixed component and major axis, sealing ring is set.
Present configuration is reasonable, easy to use, effective；Realize by umbrella tooth drive mechanism the transmission within oil level gauge
Structure carries out external force interference so that the drive mechanism within oil level gauge moves under the External Force Acting of umbrella tooth drive mechanism,
Thus realize simulating oil level change, simulate oil level exception field condition, complete docking point, secondary line, completion alarm device
The function of oil level abnormality alarming complete checks.It addition, O&M class related personnel can test transformation oil level abnormal alarm joint at any time
Whether normal, solve transformator in longtime running, contact oxidation cause can not the integrity problem of normal abnormal alarm, guarantor
Demonstrate,prove the safe operation of transformator.Otherwise for different oil level gauge for transformers, structure is designed to universal, is widely used in transformation
On device oil level indicator.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention.
Detailed description of the invention
A kind of main transformer oil level abnormal alarm contact exempts to fill, drain the oil calibration equipment, including oil level gauge shell 5, dial plate 6, pointer
Rotary shaft 7, pointer 8, fill the first bevel gear 1, the first bevel gear and the second bevel gear in oil level gauge shell, on indicators turn axle
2 coordinate, and the second bevel gear and major axis are unitary form, and the tail end of major axis is installed on the fixed component 3 fixing with oil level gauge shell
In, described fixed component is threadeded with the case 4 covered by major axis；Fixed component is arranged major axis is carried out axial limiting
Position-limit mechanism 9, pocketed springs on major axis, the rear end of spring be pressed in major axis rear portion and major axis one rear spring seat on, bullet
The front end of spring is pressed in and is enclosed within major axis and on front spring seat that dial plate is fixing；Fixed component is with oil level gauge shell by screw thread even
Connect.
Described position-limit mechanism includes push button elastic steel ball device, and time spacing, elastic steel ball is stuck in the circumferential recess of major axis
In.Or use the conventional position-limit mechanism forms such as alignment pin.Also can arrange or do not set between described fixed component and oil level gauge shell
Put sealing ring.Between described fixed component and major axis, sealing ring is set.
When normally working, turning on case 4, the outer end directly turning major axis just can realize the rotation to power transmission shaft, from
And change pointer position, reach high oil level, low oil level indicating positions；In order to not affect the normal operating conditions of original device, in school
After testing, button press formula elastic steel ball device, make steel ball depart from groove, major axis retreats under the action of the spring, it is achieved second
Original device internal mechanism would not be caused interference by bevel gear and the separation of the first bevel gear, so repacking mechanism, does not interferes with
The normal operating conditions of original device；When verifying Deng next time, as long as major axis is the gentliest pressed, button press formula elastic steel ball device,
Make steel ball enter groove spacing, allow the second bevel gear and the occlusion of the first bevel gear, thus can realize the second bevel gear and
The normal transmission of the first bevel gear.By to the processing of upper-part, assembling, debugging, it is achieved by umbrella tooth drive mechanism to oil
Position drive mechanism within table carries out external force interference so that the drive mechanism within oil level gauge is at the outer masterpiece of umbrella tooth drive mechanism
Move under with, thus realize simulating oil level change, simulate oil level exception field condition, complete docking point, secondary line, complete
Become the function of the oil level abnormality alarming complete checks of alarm device.
Claims (6)
1. main transformer oil level abnormal alarm contact exempts to fill, drain the oil a calibration equipment, including oil level gauge shell, dial plate, indicators turn
Axle, pointer, is characterized in that: fills the first bevel gear, the first bevel gear and the second umbrella tooth in oil level gauge shell, on indicators turn axle
Wheel coordinates, and the second bevel gear and major axis are unitary form, and the tail end of major axis is installed on the fixed component fixing with oil level gauge shell
In, described fixed component is threadeded with the case covered by major axis；Fixed component is arranged major axis is carried out axial limiting
Position-limit mechanism, pocketed springs on major axis, the rear end of spring be pressed in major axis rear portion and major axis one rear spring seat on, bullet
The front end of spring is pressed in and is enclosed within major axis and on front spring seat that dial plate is fixing；Fixed component is with oil level gauge shell by screw thread even
Connect.
Main transformer oil level abnormal alarm contact the most according to claim 1 exempts to fill, drain the oil calibration equipment, it is characterized in that: described
Position-limit mechanism includes push button elastic steel ball device, and time spacing, elastic steel ball is stuck in the circumferential recess of major axis.
Main transformer oil level abnormal alarm contact the most according to claim 1 exempts to fill, drain the oil calibration equipment, it is characterized in that: described
Between fixed component and oil level gauge shell, sealing ring is set.
Main transformer oil level abnormal alarm contact the most according to claim 1 exempts to fill, drain the oil calibration equipment, it is characterized in that: described
Sealing ring is set between fixed component and major axis.
Main transformer oil level abnormal alarm contact the most according to claim 2 exempts to fill, drain the oil calibration equipment, it is characterized in that: described
Between fixed component and oil level gauge shell, sealing ring is set.
Main transformer oil level abnormal alarm contact the most according to claim 2 exempts to fill, drain the oil calibration equipment, it is characterized in that: described
Sealing ring is set between fixed component and major axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648034.0A CN106289460A (en) | 2016-08-10 | 2016-08-10 | Main transformer oil level abnormal alarm contact exempts to fill, drain the oil calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610648034.0A CN106289460A (en) | 2016-08-10 | 2016-08-10 | Main transformer oil level abnormal alarm contact exempts to fill, drain the oil calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106289460A true CN106289460A (en) | 2017-01-04 |
Family
ID=57667426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610648034.0A Pending CN106289460A (en) | 2016-08-10 | 2016-08-10 | Main transformer oil level abnormal alarm contact exempts to fill, drain the oil calibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106289460A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251404A (en) * | 2008-04-16 | 2008-08-27 | 大连基准机电设备有限公司 | Tester for float level meter |
| CN201508218U (en) * | 2009-09-03 | 2010-06-16 | 丹东通博电器(集团)有限公司 | On-line scaling and self-checking mechanism of float level meter |
| CN202395598U (en) * | 2011-11-01 | 2012-08-22 | 北京航天发射技术研究所 | Clutch of fine drive |
| CN204269203U (en) * | 2014-12-09 | 2015-04-15 | 中国能源建设集团广东火电工程总公司 | The portable floating-ball level switch test unit of double pump |
-
2016
- 2016-08-10 CN CN201610648034.0A patent/CN106289460A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251404A (en) * | 2008-04-16 | 2008-08-27 | 大连基准机电设备有限公司 | Tester for float level meter |
| CN201508218U (en) * | 2009-09-03 | 2010-06-16 | 丹东通博电器(集团)有限公司 | On-line scaling and self-checking mechanism of float level meter |
| CN202395598U (en) * | 2011-11-01 | 2012-08-22 | 北京航天发射技术研究所 | Clutch of fine drive |
| CN204269203U (en) * | 2014-12-09 | 2015-04-15 | 中国能源建设集团广东火电工程总公司 | The portable floating-ball level switch test unit of double pump |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |