CN112305202A - Device for simulating transformer operation to detect dielectric loss of air cooler - Google Patents
Device for simulating transformer operation to detect dielectric loss of air cooler Download PDFInfo
- Publication number
- CN112305202A CN112305202A CN202011186020.4A CN202011186020A CN112305202A CN 112305202 A CN112305202 A CN 112305202A CN 202011186020 A CN202011186020 A CN 202011186020A CN 112305202 A CN112305202 A CN 112305202A
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- air cooler
- pipe
- dielectric loss
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- 230000001502 supplementing effect Effects 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2688—Measuring quality factor or dielectric loss, e.g. loss angle, or power factor
- G01R27/2694—Measuring dielectric loss, e.g. loss angle, loss factor or power factor
Abstract
The invention discloses a device for simulating transformer operation to detect dielectric loss of an air cooler, which comprises a support frame, a high-level pyramid oil tank and a transformer oil heater, wherein the transformer oil heater is arranged on one side of the bottom end of the support frame, and the air cooler is arranged on the other side of the bottom end of the support frame; the side wall of the high-order pyramid oil tank is connected with an oil supplementing pipe, the lower end of the oil supplementing pipe is connected with an oil inlet pipe, the oil inlet pipe is connected with a transformer oil heater, the transformer oil heater is connected with an oil outlet pipe, the end part of the oil outlet pipe is connected with a transformer oil pump, the transformer oil pump is connected with an air cooler, and the top end of the air cooler is connected with the oil supplementing pipe; the front wall of the high-position pyramid oil tank is connected with an oil filling pipe, an oil filling valve is arranged on the oil filling pipe, and the bottom end of the high-position pyramid oil tank is connected with an oil discharging pipe; the oil outlet pipe is provided with an oil taking valve and a thermometer. The air cooler dielectric loss acquisition device adopting the structure is convenient to acquire dielectric loss of the air cooler, ensures safe, stable and economic operation of the transformer, and is simple in structure and convenient to operate.
Description
Technical Field
The invention relates to the technical field of air coolers for power transformers, in particular to a device for detecting dielectric loss of the air coolers by simulating transformer operation.
Background
In the power transformer industry, transformer oil is used as a medium for insulating and cooling a power transformer, and the insulating property of the transformer oil directly affects the overall insulation of the transformer. The dielectric loss factor (dielectric loss tangent, dielectric loss for short) of the transformer oil is an important index, the dielectric loss is effectively controlled, and the method is an important means for keeping the safe, stable and economic operation of the transformer.
With the continuous improvement of the voltage grade of the transformer, the requirement on dielectric loss is stricter and stricter. Because the transformer spare part is more, and the reason that influences the dielectric loss simultaneously has a lot of, leads to difficult in time, accurate reason location. If the dielectric loss exceeds the standard in the operation experiment stage, the transformer can be checked item by item in order to find the root cause, so that huge losses in the aspects of construction period, labor cost, material cost, transportation cost, credit and the like can be caused.
The air cooler is used as a cooling part of the power transformer, and dielectric loss of the air cooler has important influence on dielectric loss of the whole operation of the transformer. In order to better control the dielectric loss of the transformer, transformer manufacturers put higher requirements on air coolers, and air cooler dielectric loss data under the running state of the transformer needs to be provided. In the factory of the air cooler, the dielectric loss detection of the air cooler in the running state of the transformer can not be carried out due to the fact that the air cooler does not have the condition of the running test of the transformer. If the operation state of the transformer can be simulated after the production of the air cooler is finished, and then the air cooler dielectric loss detection is carried out to obtain dielectric loss data, important data reference can be provided for the operation experiment of the transformer. In summary, it is very necessary to find a device capable of simulating the operation state of the transformer for detecting the dielectric loss of the air cooler.
Disclosure of Invention
The invention aims to provide a device for simulating the operation of a transformer to detect the dielectric loss of an air cooler, which can conveniently obtain the dielectric loss of the air cooler, ensure the safe, stable and economic operation of the transformer, and has simple structure and convenient operation.
In order to achieve the purpose, the invention provides a device for simulating the operation of a transformer and detecting the dielectric loss of an air cooler, which comprises a support frame, a high-level pyramid oil tank and a transformer oil heater, wherein the high-level pyramid oil tank is arranged at the top end of the support frame;
the side wall of the high-position pyramid oil tank is connected with an oil supplementing pipe, the lower end of the oil supplementing pipe is connected with an oil inlet pipe, the oil inlet pipe is connected with the transformer oil heater, the transformer oil heater is connected with an oil outlet pipe, the end part of the oil outlet pipe is connected with a transformer oil pump, the transformer oil pump is connected with an air cooler, and the top end of the air cooler is connected with the oil supplementing pipe;
the front wall of the high-position pyramid oil tank is connected with an oil filling pipe, an oil filling valve is arranged on the oil filling pipe, the bottom end of the high-position pyramid oil tank is connected with an oil discharging pipe, and an oil discharging valve is arranged on the oil discharging pipe;
an oil taking valve and a thermometer are arranged on the oil outlet pipe.
Preferably, the oil extraction valve and the thermometer are close to one end of the transformer oil pump.
Preferably, an oil outlet valve is arranged at one end of the oil outlet pipe close to the transformer oil heater.
Preferably, an oil inlet valve is arranged at one end of the oil inlet pipe close to the transformer oil heater.
Preferably, an oil supplementing valve is arranged on the oil supplementing pipe.
Preferably, an automatic exhaust valve is arranged at the top of the high-level pyramid oil tank.
Preferably, the support frame comprises a base for placing the air cooler, a first upright column arranged on one side of the base and a second upright column connected with the first upright column, the top end of the second upright column is fixed on one side of the high-position pyramid oil tank, and the other side of the high-position pyramid oil tank is connected with the top end of the first upright column.
Preferably, the first upright column and the second upright column are both arranged to be ladder-shaped structures, and the first upright column is connected with the second upright column through a connecting rib.
Preferably, the cross section of the base is a U-shaped structure, and the base and the first upright column form an L-shaped structure. Therefore, the device for simulating the operation of the transformer to detect the dielectric loss of the air cooler with the structure is adopted, the dielectric loss of the air cooler is conveniently obtained, the safe, stable and economic operation of the transformer is guaranteed, and meanwhile, the device is simple in structure and convenient to operate.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of an apparatus for simulating transformer operation to detect dielectric loss of an air cooler according to the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of a device for simulating transformer operation to detect air cooler dielectric loss according to the present invention, the device having a supporting frame;
FIG. 3 is a schematic structural diagram of an installed air cooler according to an embodiment of the device for simulating transformer operation to detect dielectric loss of the air cooler;
FIG. 4 is a front view of an embodiment of the apparatus for simulating transformer operation to detect air cooler dielectric loss according to the present invention;
FIG. 5 is a side view of an embodiment of the apparatus for simulating transformer operation to detect air cooler dielectric loss according to the present invention;
fig. 6 is a top view of an embodiment of the device for simulating transformer operation to detect air cooler dielectric loss according to the present invention.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Fig. 1 is a schematic structural diagram of an embodiment of a device for simulating transformer operation to detect air cooler dielectric loss according to the present invention, fig. 2 is a schematic structural diagram with a support frame of an embodiment of a device for simulating transformer operation to detect air cooler dielectric loss according to the present invention, fig. 3 is a schematic structural diagram of an installation air cooler of an embodiment of a device for simulating transformer operation to detect air cooler dielectric loss according to the present invention, fig. 4 is a front view of an embodiment of a device for simulating transformer operation to detect air cooler dielectric loss according to the present invention, fig. 5 is a side view of an embodiment of a device for simulating transformer operation to detect air cooler dielectric loss according to the present invention, and fig. 6 is a top view of an embodiment of a device for simulating transformer operation to detect air cooler dielectric loss according to the present invention. As shown in the figure, the invention provides a device for simulating transformer operation to detect the dielectric loss of an air cooler, which comprises a support frame 1, a high-level pyramid oil tank 2 arranged at the top end of the support frame 1 and a transformer oil heater 3, wherein the transformer oil heater 3 is arranged on one side of the bottom end of the support frame 1, and the air cooler 4 is arranged on the other side of the bottom end of the support frame 1; an oil supplementing pipe 5 is connected to the side wall of the high-order pyramid oil tank 2, an oil inlet pipe 6 is connected to the lower end of the oil supplementing pipe 5, the oil inlet pipe 6 is connected with the transformer oil heater 3, an oil outlet pipe 7 is connected to the transformer oil heater 3, a transformer oil pump 8 is connected to the end of the oil outlet pipe 7, the transformer oil pump 8 is connected with an air cooler 9, and the top end of the air cooler 9 is connected with the oil supplementing pipe 5; the front wall of the high-position pyramid oil tank 2 is connected with an oil filling pipe 10, the oil filling pipe 10 is provided with an oil filling valve 11, the bottom end of the high-position pyramid oil tank 2 is connected with an oil discharging pipe 12, and the oil discharging pipe 12 is provided with an oil discharging valve 13; the oil outlet pipe 7 is provided with an oil taking valve 14 and a thermometer 15.
The oil taking valve 14 and the thermometer 15 are close to one end of the transformer oil pump 8. An oil outlet valve 16 is arranged at one end of the oil outlet pipe 7 close to the transformer oil heater 3. An oil inlet valve 17 is arranged at one end of the oil inlet pipe 6 close to the transformer oil heater 3. The oil supplementing pipe 5 is provided with an oil supplementing valve 18. The top of the high-level pyramid oil tank 2 is provided with an automatic exhaust valve 19.
The support frame 1 comprises a base 101 for placing the air cooler 9, a first upright post 102 arranged on one side of the base 101 and a second upright post 103 connected with the first upright post 102, wherein the top end of the second upright post 103 is fixed on one side of the high-level pyramid oil tank 2, and the other side of the high-level pyramid oil tank 2 is connected with the top end of the first upright post 102. The first upright post 102 and the second upright post 103 are both arranged to be ladder-shaped structures, and the first upright post 102 and the second upright post 103 are connected through a connecting rib 104. The cross section of the base 101 is a U-shaped structure, and forms an L-shaped structure with the first upright post 102.
The working process is as follows:
the wind cooler is fixed on a base of the support frame, the oil discharge valve is closed, the oil injection valve is opened, the transformer oil is filled in the high-level pyramid oil tank through the oil injection valve and the oil injection pipe, and then the oil injection valve is closed. And opening an oil supplementing valve, an oil inlet valve and an oil outlet valve, filling the transformer oil in the high-level pyramid oil tank into the air cooler, the oil inlet valve, the oil inlet pipe, the oil outlet valve, the oil outlet pipe, the transformer oil pump and the transformer oil heater through the oil supplementing pipe and the oil supplementing valve, and closing the oil supplementing valve. And starting the transformer oil pump, wherein the transformer oil starts to circularly flow in the transformer oil pump oil outlet pipe, the oil outlet valve, the transformer oil heater, the oil inlet valve, the oil inlet pipe, the air cooler and the transformer oil pump. And starting the transformer oil heater, and starting to heat the transformer oil which circularly flows. When the temperature of the transformer oil monitored by the thermometer meets the requirement, the oil taking valve is opened to collect a transformer oil sample, the oil taking valve is closed, then the dielectric loss of the transformer oil sample is detected, and dielectric loss data of the air cooler in the simulation of the running state of the transformer is obtained. Through the technical scheme, the dielectric loss detection of the air cooler is realized under the condition of simulating the running state of the transformer.
Therefore, the device for simulating the operation of the transformer to detect the dielectric loss of the air cooler with the structure is adopted, the dielectric loss of the air cooler is conveniently obtained, the safe, stable and economic operation of the transformer is guaranteed, and meanwhile, the device is simple in structure and convenient to operate.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a simulation transformer operation detects device that air cooler is situated between and decreases which characterized in that:
the transformer oil cooling device comprises a support frame, a high-position pyramid oil tank and a transformer oil heater, wherein the high-position pyramid oil tank and the transformer oil heater are arranged at the top end of the support frame;
the side wall of the high-position pyramid oil tank is connected with an oil supplementing pipe, the lower end of the oil supplementing pipe is connected with an oil inlet pipe, the oil inlet pipe is connected with the transformer oil heater, the transformer oil heater is connected with an oil outlet pipe, the end part of the oil outlet pipe is connected with a transformer oil pump, the transformer oil pump is connected with an air cooler, and the top end of the air cooler is connected with the oil supplementing pipe;
the front wall of the high-position pyramid oil tank is connected with an oil filling pipe, an oil filling valve is arranged on the oil filling pipe, the bottom end of the high-position pyramid oil tank is connected with an oil discharging pipe, and an oil discharging valve is arranged on the oil discharging pipe;
an oil taking valve and a thermometer are arranged on the oil outlet pipe.
2. The device for simulating transformer operation to detect air cooler dielectric loss according to claim 1, wherein: the oil taking valve and the thermometer are close to one end of the transformer oil pump.
3. The device for simulating transformer operation to detect air cooler dielectric loss according to claim 2, wherein: and an oil outlet valve is arranged at one end of the oil outlet pipe close to the transformer oil heater.
4. The apparatus for simulating transformer operation to detect air cooler dielectric loss according to claim 3, wherein: and an oil inlet valve is arranged at one end of the oil inlet pipe close to the transformer oil heater.
5. The apparatus for simulating transformer operation to detect air cooler dielectric loss according to claim 4, wherein: and an oil supplementing valve is arranged on the oil supplementing pipe.
6. The apparatus for simulating transformer operation to detect air cooler dielectric loss according to claim 5, wherein: and an automatic exhaust valve is arranged at the top of the high-level pyramid oil tank.
7. The apparatus for simulating transformer operation to detect air cooler dielectric loss according to claim 6, wherein: the supporting frame comprises a base used for placing the air cooler, a first upright column arranged on one side of the base and a second upright column connected with the first upright column, the top end of the second upright column is fixed on one side of the high-position pyramid oil tank, and the other side of the high-position pyramid oil tank is connected with the top end of the first upright column.
8. The apparatus for simulating transformer operation to detect air cooler dielectric loss according to claim 7, wherein: the first stand with the second stand all sets up to ladder shape structure, just first stand with connect through the splice bar between the second stand.
9. The apparatus for simulating transformer operation to detect air cooler dielectric loss according to claim 8, wherein: the cross section of the base is of a U-shaped structure, and the base and the first stand column form an L-shaped structure in a surrounding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186020.4A CN112305202A (en) | 2020-10-30 | 2020-10-30 | Device for simulating transformer operation to detect dielectric loss of air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186020.4A CN112305202A (en) | 2020-10-30 | 2020-10-30 | Device for simulating transformer operation to detect dielectric loss of air cooler |
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| Publication Number | Publication Date |
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| CN112305202A true CN112305202A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011186020.4A Pending CN112305202A (en) | 2020-10-30 | 2020-10-30 | Device for simulating transformer operation to detect dielectric loss of air cooler |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005259785A (en) * | 2004-03-09 | 2005-09-22 | Tm T & D Kk | Oil-filled electric apparatus |
| CN205751777U (en) * | 2016-07-05 | 2016-11-30 | 三峡大学 | A kind of transformer combination oil-filtering apparatus of dielectric loss on-line checking |
| CN207096179U (en) * | 2017-05-17 | 2018-03-13 | 国网江西省电力公司电力科学研究院 | A kind of dielectric dissipation factor on-Line Monitor Device of transformer insulation oil |
| CN109387245A (en) * | 2018-11-07 | 2019-02-26 | 山东泰开变压器有限公司 | Shock type transformer synthesis on-line monitoring system |
| CN210358399U (en) * | 2019-07-30 | 2020-04-21 | 保定新胜冷却设备有限公司 | Tool for rinsing gas-phase drying agent in air cooler for transformer |
| CN211061199U (en) * | 2019-09-26 | 2020-07-21 | 陕西安得电力设备制造有限公司 | Cooler operation simulation test station |
-
2020
- 2020-10-30 CN CN202011186020.4A patent/CN112305202A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005259785A (en) * | 2004-03-09 | 2005-09-22 | Tm T & D Kk | Oil-filled electric apparatus |
| CN205751777U (en) * | 2016-07-05 | 2016-11-30 | 三峡大学 | A kind of transformer combination oil-filtering apparatus of dielectric loss on-line checking |
| CN207096179U (en) * | 2017-05-17 | 2018-03-13 | 国网江西省电力公司电力科学研究院 | A kind of dielectric dissipation factor on-Line Monitor Device of transformer insulation oil |
| CN109387245A (en) * | 2018-11-07 | 2019-02-26 | 山东泰开变压器有限公司 | Shock type transformer synthesis on-line monitoring system |
| CN210358399U (en) * | 2019-07-30 | 2020-04-21 | 保定新胜冷却设备有限公司 | Tool for rinsing gas-phase drying agent in air cooler for transformer |
| CN211061199U (en) * | 2019-09-26 | 2020-07-21 | 陕西安得电力设备制造有限公司 | Cooler operation simulation test station |
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Application publication date: 20210202 |