CN208689116U - A kind of main transformer test device - Google Patents
A kind of main transformer test device Download PDFInfo
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- CN208689116U CN208689116U CN201820800271.9U CN201820800271U CN208689116U CN 208689116 U CN208689116 U CN 208689116U CN 201820800271 U CN201820800271 U CN 201820800271U CN 208689116 U CN208689116 U CN 208689116U
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Abstract
The utility model discloses a kind of main transformer test devices, including experiment line, experiment porch and the moving trolley for installing experiment porch, the first group of terminals of experiment line is connect with the high, medium and low voltage winding of main transformer respectively, is provided in the experiment porch and is provided multiple test equipments of different test items；Circuit switch module connects the second group of terminals of experiment line, and the signal of any winding in the high, medium and low voltage winding of the main transformer connected for choice experiment line is exported；Switching module, connection line switching module and multiple test equipments are tested, for selecting one of test equipment to connect with circuit switch module to carry out corresponding test；Control module is separately connected circuit switch module and test switching module, for controlling circuit switch module and testing the selection switching action of switching module.The utility model can greatly save test period, reduce testing crew labor intensity, improve testing crew safety.
Description
Technical field
The utility model relates to electrical network field more particularly to a kind of main transformer test devices.
Background technique
For many years, when carrying out main transformer field test, traditional test method is individually grasped using each pilot project
The mode of work, often ten several test apparatuses dispersions are put on the ground in scene, and need to respectively be tried by Special wiring
It tests.One pilot project of every progress needs replacing test apparatus, changes wiring.110kV and the above power transformer are bulky,
The transformer high-voltage bushing length of especially 220kV or more is more than 2 meters, and testing crew must climb up master by ladder or lift truck
Become, due to inconvenient up and down, often 2 testing crews are rested on main transformer, are waited and are changed test connection.
Test method traditional at present suffers from the drawback that
1) it changes testing equipment and test wire elapsed time is long, repeated disassembled and assembled test wire is cumbersome.
2) testing crew rests on main transformer top for a long time, and repeatedly climbs up repeatedly and climb down bushing, and there are high-altitude pendants
Fall danger.
3) when carrying out high-potting project, there are electric shock risks.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of main transformer survey
Trial assembly is set.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of main transformer test device is constructed, including
The moving trolley of experiment line, experiment porch and the installation experiment porch, the first group of terminals of the experiment line respectively with master
The high, medium and low voltage winding of transformer connects, and is provided in the experiment porch
Multiple test equipments of different test items are provided；
Circuit switch module connects the second group of terminals of the experiment line, the master connected for choice experiment line
The signal of any winding in the high, medium and low voltage winding of transformer is exported；
Switching module is tested, the circuit switch module and the multiple test equipment are connected, for selecting one of them
Test equipment is connected with the circuit switch module to carry out corresponding test；
Control module is separately connected the circuit switch module and the test switching module, for controlling the route
The selection switching action of switching module and the test switching module.
In main transformer test device described in the utility model, the test switching module includes setting with the multiple test
Standby corresponding multiple TCH test channels, each TCH test channel can enter on state or cut-off under the control of control module
State, each TCH test channel include the first test lead and the second test lead, the first test lead of the multiple TCH test channel
It is connected to the output end of the circuit switch module, the one-to-one connection respectively of the second test lead of the multiple TCH test channel altogether
One corresponding test equipment.
In main transformer test device described in the utility model, each TCH test channel includes relay.
In main transformer test device described in the utility model, the circuit switch module includes and the second group of terminals
Corresponding one group of line channel, each line channel can enter on state or cut-off shape under the control of control module
State, each line channel include the first terminals and the second terminals, the first terminals one of one group of line channel
The one corresponding connection second group of terminals, the second terminals of one group of line channel are used as the circuit switching after connecing altogether
The output end of module.
In main transformer test device described in the utility model, each line channel includes relay.
In main transformer test device described in the utility model, the experiment line includes connecting the first group of terminals and institute
One group of route of second group of terminals is stated, the first group of terminals and the second group of terminals respectively include HV Terminal, middle pressure
Terminal, low-voltage terminal, one group of route include high-tension line, medium-voltage line, low-voltage circuit, described in the high-tension line connection
The HV Terminal of the HV Terminal of first group of terminals and the second group of terminals, first group of terminals described in medium pressure connection
Intermediate voltage terminal and the second group of terminals intermediate voltage terminal, the low-voltage circuit connects the low-voltage terminal of the first group of terminals
With the low-voltage terminal of the second group of terminals.
The main transformer test device of the utility model, transformer utilization need to be climbed up by having the advantages that testing crew only
The high, medium and low voltage winding of main transformer is disposably led to testing stand by test wire, and transformer connection is operated from the air and is changed to ground
Under, and the circuit switch module and the selection switching action for testing switching module, Jin Ershi are controlled by control module
The selection switching of existing different test items, the utility model can greatly save test period, and it is strong to reduce testing crew labour
Degree improves testing crew safety.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer:
Fig. 1 is the structural schematic diagram of the utility model main transformer test device.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The exemplary embodiments of the utility model are given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes public affairs to the utility model
It is more thorough and comprehensive to open content.
It should be noted that it can be directly to separately when an element is considered as " connection " another element
One element may be simultaneously present centering elements.Unless otherwise defined, all technologies used herein and section are academic
Language has the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs.Herein in the utility model
Term used in the description, which is only for the purpose of describing specific embodiments, to be not intended to limit the utility model.
" first ", " second " used in this specification etc. includes that the term of ordinal number can be used for illustrating various constituent elements,
But these constituent elements are not limited by these terms.It is only that using the purpose of these terms and distinguishes a constituent element
In other constituent elements.For example, the first constituent element can be named under the premise of not departing from the interest field of the utility model
For the second constituent element, similarly, the second constituent element can also be named as the first constituent element.
The total thinking of the utility model is: constructing a kind of main transformer test device, including experiment line, experiment porch and installation
The moving trolley of the experiment porch, the first group of terminals of the experiment line connect with the high, medium and low voltage winding of main transformer respectively
It connects, is provided in the experiment porch
Multiple test equipments of different test items are provided；
Circuit switch module connects the second group of terminals of the experiment line, the master connected for choice experiment line
The signal of any winding in the high, medium and low voltage winding of transformer is exported；
Switching module is tested, the circuit switch module and the multiple test equipment are connected, for selecting one of them
Test equipment is connected with the circuit switch module to carry out corresponding test；
Control module is separately connected the circuit switch module and the test switching module, for controlling the route
The selection switching action of switching module and the test switching module.
Main transformer test device based on the utility model, testing crew need to only climb up transformer and utilize test wire by main transformer pressure
The high, medium and low voltage winding of device disposably leads to testing stand, and transformer connection is operated from the air and is changed to underground, and passes through control
Module controls the selection switching action of the circuit switch module and the test switching module, and then realizes different test items
Selection switching, the utility model can greatly save test period, reduce testing crew labor intensity, improve testing crew
Safety.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to this
The detailed description of application technical solution, rather than the restriction to technical scheme, in the absence of conflict, this is practical
Technical characteristic in new embodiment and embodiment can be combined with each other.
With reference to Fig. 1, a kind of main transformer test device is disclosed in the utility model embodiment, including experiment line 10, experiment are put down
The moving trolley (not shown) of platform 20 and the installation experiment porch 20.
Wherein, the experiment line 10 includes first group of terminals, second group of terminals and one group of route, and one group of route connects
Connect the first group of terminals and the second group of terminals.The first group of terminals and the second group of terminals respectively include high pressure
Terminal, intermediate voltage terminal, low-voltage terminal, one group of route includes high-tension line, medium-voltage line, low-voltage circuit, the high-voltage line
Road connects the HV Terminal of the first group of terminals and the HV Terminal of the second group of terminals, described in medium pressure connection
Intermediate voltage terminal of first group of terminals and intermediate voltage terminal of the second group of terminals, the low-voltage circuit connect the first group of terminals
Low-voltage terminal and the second group of terminals low-voltage terminal.Experiment line 10 is single line cable, high-tension line, medium-voltage line, low
Crimping road is three cores in the cable, and three is isolated by insulating materials between each other.
Wherein, it is provided in the experiment porch 20 and multiple test equipment 1-n, the route of different test items is provided
Switching module 21, test switching module 22 and control module.
Circuit switch module 21 connects the second group of terminals of the experiment line, connected for choice experiment line 10 described in
The signal of any winding in the high, medium and low voltage winding of main transformer is exported；Test switching module 22 connects the route
Switching module 21 and the multiple test equipment, for selecting one of test equipment and the circuit switch module 21 to connect
To be tested accordingly；Control module is separately connected the circuit switch module 21 and the test switching module 22, is used for
Control the selection switching action of the circuit switch module 21 and the test switching module 22.
Specifically, multiple test equipment 1-n can include but is not limited to: low-voltage impedance test equipment, no-load voltage ratio test equipment,
D.C. resistance test equipment, loaded switch test equipment, dielectric loss test equipment, megger test equipment.
Specifically, the circuit switch module 21 includes one group line channel 1-3 corresponding with the second group of terminals, tool
Body is and HV Terminal in second group of terminals, intermediate voltage terminal, one-to-one three line channels of low-voltage terminal.It is each described
Line channel can enter on state or off state under the control of control module, and each line channel includes first
Terminals and the second terminals, the first terminals of one group of line channel 1-3 connect the of experiment line 10 correspondingly
Two groups of terminals, output end as the circuit switch module 21 after the second terminals of one group of line channel 1-3 connect altogether.
Specifically, the test switching module 22 includes multiple TCH test channel 1-n corresponding with the multiple test equipment,
Each TCH test channel can enter on state or off state, each TCH test channel under the control of control module
Including the first test lead and the second test lead, the first test lead of the multiple TCH test channel 1-n is connected to the circuit switching altogether
The output end of module 21, the corresponding survey of one-to-one connection one respectively of the second test lead of the multiple TCH test channel 1-n
Try equipment.
In one specific embodiment, each TCH test channel includes relay, and each line channel includes
Relay.Control module chooses some channel if necessary, even if some channel is in the conductive state, then need to only control accordingly after
It is conducted on electric appliance.
Specifically, HV Terminal, intermediate voltage terminal, the low-voltage terminal in the first group of terminals of experiment line 10 correspond respectively
The high, medium and low voltage winding for being connected to transformer.HV Terminal, intermediate voltage terminal, low pressure in the second group of terminals of experiment line 10
Terminal is connected to three line channels of circuit switch module 21 correspondingly respectively.
Preferably, a display module can also be set, and display module is connect with control module, for prompting current survey
Examination project.For example, multiple indicator lights corresponding with multiple relays in test switching module 22, each indicator light can be set
A corresponding test item gives the relay while control module gives the relay power supply in test switching module 22 again
Corresponding indicator light power supply.
The working principle of the present embodiment is: if necessary to test item A, then in control module control TCH test channel 1-n with
Relay conducting in test item A connecting test channel, and corresponding line channel 1-3 is selected according to the demand of test item
In one conducting, thus the high pressure in the experiment line 10 that the test equipment that TCH test channel is connected is connect with line channel
Route or the conducting of medium-voltage line or low-voltage circuit, the test of other test items similarly, repeat no more.
For the ease of cabling, and reduce the volume of whole system, the preferred trolley includes cabinet body in the present invention, should
Cabinet body includes cylindrical upper layer cavity and cylindrical lower layer's cavity.
Wherein, the upper layer cavity installs the control module.Lower layer's cavity includes lower layer's central cavity, is surrounded on
Lower layer's annular cavity outside lower layer's central cavity and lower layer's external ring cavity outside lower layer's annular cavity
Body, lower layer's annular cavity are along the circumferential direction divided into the multiple first sub- cavitys, and lower layer's outer ring cavity is drawn
Be divided into the one-to-one multiple second sub- cavitys of the multiple first sub- cavity, lower layer's central cavity is described for installing
Circuit switch module, the multiple first sub- cavity are used for installing the multiple TCH test channel, the multiple second sub- cavity
In installing the multiple measurement equipment, lower layer's central cavity, the multiple first sub- cavity, the multiple second sub- cavity
Top is provided with the route hole passed through for connecting line being connected to the upper layer cavity.It is understood that other cavitys it
Between equipment connection, can by cavity aperture cabling to realize.
The working principle of the present embodiment is: the relay conducting in TCH test channel 1-n is successively controlled by control module, and
One in corresponding line channel 1-3 is selected to be connected according to the demand of test item, thus the survey that TCH test channel is connected
The high-tension line or medium-voltage line or low-voltage circuit tried in the experiment line 10 that equipment is connected with line channel is connected, thus
Each test item is successively executed, and in one TCH test channel of every gating, while controlling finger corresponding with the TCH test channel
The test item for showing lamp bright light to prompt user current.
In conclusion the main transformer test device of the utility model, has the advantages that testing crew need to only climb up change
The high, medium and low voltage winding of main transformer is disposably led to testing stand using test wire by depressor, and transformer connection is operated from sky
In change to underground, and switched by the selection that control module controls the circuit switch module and the test switching module dynamic
Make, and then realize the selection switching of different test items, the utility model can greatly save test period, reduce test people
Member's labor intensity, improves testing crew safety.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (6)
1. a kind of main transformer test device, which is characterized in that the shifting including experiment line, experiment porch and the installation experiment porch
Dynamic trolley, the first group of terminals of the experiment line are connect with the high, medium and low voltage winding of main transformer respectively, the experiment porch
In be provided with
Multiple test equipments of different test items are provided；
Circuit switch module connects the second group of terminals of the experiment line, the main transformer pressure connected for choice experiment line
The signal of any winding in the high, medium and low voltage winding of device is exported；
Switching module is tested, the circuit switch module and the multiple test equipment are connected, for selecting one of test
Equipment is connected with the circuit switch module to carry out corresponding test；
Control module is separately connected the circuit switch module and the test switching module, for controlling the circuit switching
The selection switching action of module and the test switching module.
2. main transformer test device according to claim 1, which is characterized in that the test switching module include with it is described more
The corresponding multiple TCH test channels of a test equipment, each TCH test channel can enter on state under the control of control module
Or off state, each TCH test channel include the first test lead and the second test lead, the of the multiple TCH test channel
One test lead is connected to the output end of the circuit switch module altogether, and the second test lead difference one of the multiple TCH test channel is a pair of
One corresponding test equipment of the connection answered.
3. main transformer test device according to claim 2, which is characterized in that each TCH test channel includes relay.
4. main transformer test device according to claim 1, which is characterized in that the circuit switch module includes and described
The corresponding one group of line channel of two groups of terminals, each line channel can under the control of control module enter on state or
Person's off state, each line channel include the first terminals and the second terminals, the first of one group of line channel
Terminals connect the second group of terminals correspondingly, and the second terminals of one group of line channel are used as described after connecing altogether
The output end of circuit switch module.
5. main transformer test device according to claim 4, which is characterized in that each line channel includes relay.
6. main transformer test device according to claim 1, which is characterized in that the experiment line includes connecting described first group
One group of route of terminal and the second group of terminals, the first group of terminals and the second group of terminals respectively include high-voltage end
Son, intermediate voltage terminal, low-voltage terminal, one group of route includes high-tension line, medium-voltage line, low-voltage circuit, the high-tension line
The HV Terminal of the first group of terminals and the HV Terminal of the second group of terminals are connected, described in medium pressure connection
Intermediate voltage terminal of one group of terminal and intermediate voltage terminal of the second group of terminals, the low-voltage circuit connect the first group of terminals
The low-voltage terminal of low-voltage terminal and the second group of terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820800271.9U CN208689116U (en) | 2018-05-28 | 2018-05-28 | A kind of main transformer test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820800271.9U CN208689116U (en) | 2018-05-28 | 2018-05-28 | A kind of main transformer test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208689116U true CN208689116U (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820800271.9U Expired - Fee Related CN208689116U (en) | 2018-05-28 | 2018-05-28 | A kind of main transformer test device |
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| CN (1) | CN208689116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983329A (en) * | 2020-08-25 | 2020-11-24 | 广东电网有限责任公司广州供电局 | Device and method for testing dielectric loss of transformer to ground |
-
2018
- 2018-05-28 CN CN201820800271.9U patent/CN208689116U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983329A (en) * | 2020-08-25 | 2020-11-24 | 广东电网有限责任公司广州供电局 | Device and method for testing dielectric loss of transformer to ground |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 Termination date: 20200528 |
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| CF01 | Termination of patent right due to non-payment of annual fee |