CN206945944U - A kind of standard potential transformer scene self checking comparison standard - Google Patents
A kind of standard potential transformer scene self checking comparison standard Download PDFInfo
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- CN206945944U CN206945944U CN201720888198.0U CN201720888198U CN206945944U CN 206945944 U CN206945944 U CN 206945944U CN 201720888198 U CN201720888198 U CN 201720888198U CN 206945944 U CN206945944 U CN 206945944U
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Abstract
The utility model embodiment discloses a kind of self checking of standard potential transformer scene and compares standard, including experiment power supply, core assembly, experiment power supply link block and disconnecting switch, the experiment power supply electrically connects with the experiment power supply link block, the disconnecting switch electrical connection switch control power supply, after the disconnecting switch closure, the experiment power supply link block is fixedly connected with the core assembly.The utility model embodiment controls the incision for comparing standard in transformer self-checking system to cut out by controlling disconnecting switch, directly can carry out verification verification using the standard potential transformer in transformer checking system as subject.
Description
Technical field
It the utility model is related to super-pressure transducer check field, more particularly to a kind of self-correcting of standard potential transformer scene
Test with comparison standard and check method.
Background technology
As shown in figure 1, for according to JJG1021-2007《Electric power mutual-inductor》Vertification regulation carries out scene to voltage transformer
The elementary diagram of error checking, voltage transformer error check system, including pressure regulator 01, booster 02, normal voltage are mutual
Sensor tester 05 and voltage load box, when carrying out transformer error field-checking, connect according to the schematic diagram shown in Fig. 1
Line, and carry out transformer error verification according to the relevant regulations in vertification regulation.
However, when being verified at the scene to voltage transformer error, it is possible that subject data of transformer error is overproof
Situation, it may be possible to the reason for check system, it is also possible to transformer self reason is tested, now because carrying out core to check system
Look into, judge whether it is that error information caused by check system self reason is overproof.And the malfunction elimination process of check system is very
It is cumbersome, substantial amounts of human and material resources, financial resources are wasted while test process is delayed.
In addition, used place capacity is all larger when super-pressure, extra-high voltage mutual inductor site error verify, and Large Copacity
Equipment volume is big, weight weight, execute-in-place difficulty is very big, if the failure of voltage transformer test equipment can be excluded rapidly
Possibility can then increase substantially the efficiency of malfunction elimination.
Utility model content
To overcome problem present in correlation technique, following technical scheme is disclosed：
The utility model embodiment provides a kind of self checking of standard potential transformer scene and compares standard, including examination
Electrical verification source, core assembly, experiment power supply link block and disconnecting switch, the experiment power supply are connected mould with the experiment power supply
Block electrically connects, the disconnecting switch electrical connection switch control power supply, and after the disconnecting switch closure, the experiment power supply connects mould
Block is fixedly connected with the core assembly, wherein,
The disconnecting switch includes driving motor, drive link, composite insulator, the first voltage equalizing ball, the second voltage equalizing ball and the
Three conducting rods, described drive link one end are rotatablely connected with driving motor, the other end of the drive link and the composite insulator
Connection, the composite insulator other end are connected with the 3rd conducting rod；
The experiment power supply link block includes four port connecting tubes, and the four ports connecting tube includes mutually perpendicular the
One port and the second port and the third connectivity mouth and the 4th port penetrated along same bearing of trend, first port and second
Port is each perpendicular to the third connectivity mouth and the 4th port；The third connectivity mouth is that the 3rd conducting rod connects port, described
4th port is that the core assembly connects port.
Alternatively, the bearing of trend of third connectivity mouth and the 4th port described in the four ports connecting tube interior edge is provided with the 3rd
Conducting rod, it is connected close to one end of the 3rd conducting rod of the third connectivity mouth by the composite insulator with the drive link；
One end of 3rd conducting rod of the 4th port is provided with the first voltage equalizing ball.
Alternatively, the core assembly includes first winding, secondary winding and iron core, and the high-pressure side of the first winding is set
It is equipped with the second voltage equalizing ball that connection is contacted with first voltage equalizing ball.
Alternatively, the first conducting rod, first conducting rod and transformer checking system are provided with first port
Middle booster first winding high-voltage output end electrical connection；The second conducting rod is provided with second port, described second is conductive
Bar electrically connects with transformer checking system high-voltage terminal end, and first conducting rod, the second conducting rod and the 3rd conducting rod lead to
Cross the four ports connector contact connection.
Alternatively, two inductive switches are provided with the driving motor, for controlling the transmission side of the driving motor
To and transmission distance wherein, be spaced pre-determined distance between two inductive switches.
Alternatively, two aluminium flakes corresponding with the inductive switch are provided with the drive link, wherein, described in two
The distance between aluminium flake is equal to the distance of two inductive switches.
Alternatively, in addition to control panel, the switch control power supply by the electric connector on the control panel with
The disconnecting switch electrical connection.
Alternatively, be additionally provided with the control panel power control switch, power lights, closing switch, combined floodgate indicator lamp,
Separating brake switchs and separating brake indicator lamp, wherein, the power control switch, closing switch and separating brake are switched for controlling transformer
The incision that standard is compared described in self-checking system is cut out.
Alternatively, the power control switch is band light bar lock-switch；The closing switch is runback with separating brake switch
Switch.
The standard potential transformer scene self checking that the utility model embodiment provides includes experiment electricity with standard is compared
Source, core assembly, experiment power supply link block and disconnecting switch, the experiment power supply and experiment power supply link block electricity
Connection, disconnecting switch electrical connection switch control power supply, after the disconnecting switch closure, the experiment power supply link block with
The core assembly is fixedly connected.The utility model embodiment controls transformer self-checking system by controlling disconnecting switch
The middle incision for comparing standard is cut out, and directly can be carried out the standard potential transformer in transformer checking system as subject
Verify verification.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, below by the required accompanying drawing used in embodiment
It is briefly described, it should be apparent that, for those of ordinary skills, do not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the elementary diagram of voltage transformer error check system；
Fig. 2 is that a kind of standard potential transformer scene self checking that the utility model embodiment provides compares standard
Structural representation；
Fig. 3 is a kind of structural representation for disconnecting switch that the utility model embodiment provides；
Fig. 4 is a kind of structural representation for four ports connecting tube that the utility model embodiment provides；
Fig. 5 is a kind of connection principle for standard potential transformer scene self-checking system that the utility model embodiment provides
Figure；
Fig. 6 is that a kind of standard potential transformer scene self checking that the utility model embodiment provides compares standard
Elementary diagram；
Fig. 7 is that a kind of standard potential transformer scene self checking that the utility model embodiment provides compares standard
Application method schematic flow sheet.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the utility model, below in conjunction with this reality
With the accompanying drawing in new embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that
Described embodiment is only the utility model part of the embodiment, rather than whole embodiments.
Referring to Fig. 2, mark is compared for a kind of standard potential transformer scene self checking that the utility model embodiment provides
The structural representation of quasi- device, as shown in Fig. 2 a kind of standard potential transformer scene self checking that the utility model embodiment provides
With compare standard, including：Experiment power supply 30, core assembly 50, experiment power supply link block 40 and disconnecting switch 20.
Experiment power supply 30 electrically connects with experiment power supply link block 40, the electrical connection switch control power supply 10 of disconnecting switch 20,
After power on, control the connection of core assembly 50 and experiment power supply link block by controlling disconnecting switch 20 and break
Open, the booster one of the first winding high-pressure side incision transformer self-checking system and transformer self-checking system of core assembly 50
After secondary winding high voltage end connection, the standard potential transformer in transformer checking system makees canonical form as subject, comparison standard
Into transformer self-checking system.After core assembly 50 cuts out transformer self-checking system, standard potential transformer self checking experiment
Terminate.
Wherein,
Referring to Fig. 3, a kind of structural representation of the disconnecting switch provided for the utility model embodiment, as shown in figure 3, this
The disconnecting switch 20 that utility model embodiment provides includes driving motor 21, drive link 22, composite insulator 23, the first voltage equalizing ball
24th, the second voltage equalizing ball 25 and the 3rd conducting rod 26.
The both ends of drive link 22 connect driving motor 21 and composite insulator 23 respectively, and driving motor 21 is by gear with passing
The one end of lever 22 is rotatablely connected, and the other end of drive link 22 is connected with composite insulator 23.Driving motor 21 can be with when rotating
Drive link 22 is driven to rotate, drive link 22 is connected with composite insulator 23 again, when under drive of the drive link 22 in driving motor 23
During rotation, the also concomitant rotation of composite insulator 23, so that the transverse shifting of composite insulator 23.The other end of composite insulator 23
The 3rd conducting rod 26 is connected with, the tail end of the 3rd conducting rod 26 is connected with the first voltage equalizing ball 24, the horizontal shifting of composite insulator 23
It is dynamic to drive the transverse shifting of the 3rd conducting rod 26, finally realize the second voltage equalizing ball being connected with the first winding high-pressure side of core assembly 50
25 division.Reach the purpose for cutting out transformer checking system for comparing standard.
The 1min power frequency withstanding voltages of composite insulator 23 are volume of transformer checking system Plays voltage transformer
Determine voltage 1.8 times, can avoid disconnecting switch 20 from causing component to damage because of overtension during experiment.
Experiment power supply link block 40 includes four port connecting tubes, referring to Fig. 4, one provided for the utility model embodiment
The structural representation of four port connecting tubes of kind, as shown in figure 4, the four port connecting tubes that the utility model embodiment provides are included mutually
The first perpendicular port 41 and the second port 42 and the port 44 of third connectivity mouth 43 and the 4th penetrated along same bearing of trend.
First port 41 and the second port 42 are each perpendicular to the port 43 of third connectivity mouth 43 and the 4th；Third connectivity mouth 43 and the 4th
The inner surface Glabrous of port 44 pierces, and third connectivity mouth 43 connects composite insulator 23, the 4th port 44 connection core assembly 50.Examination
Electrical verification source link block 40 is connected with disconnecting switch 20, and the i.e. controllable core assembly 50 of control disconnecting switch 20 connects with experiment power supply
Connection module 40 is connected and disconnected from.
The bearing of trend of four port connecting tube interior edge third connectivity mouthes 43 and the 4th port 44 is provided with the 3rd conducting rod 26, leans on
One end of 3rd conducting rod 26 of nearly third connectivity mouth 43 is connected by composite insulator 23 with drive link 22；Close to the 4th port 44
One end of the 3rd conducting rod 26 be provided with the first voltage equalizing ball 24.
Core assembly 50 includes first winding, secondary winding and iron core, and first winding high-pressure side is provided with presses with first
Second voltage equalizing ball 25 of the contact connection of ball 24, wherein, core assembly 50 is total to transformer checking system Plays voltage transformer
With air chamber and sleeve pipe, air chamber is interior to use SF6 gases as dielectric.
The first conducting rod 411, the first conducting rod 411 and booster in transformer checking system are provided with first port 41
First winding high-voltage output end electrically connects；The second conducting rod 421, the second conducting rod 421 and mutual inductance are provided with second port 42
Device check system high-voltage output end electrically connects, and the first conducting rod 411, the second conducting rod 421 and the 3rd conducting rod 26 pass through four
The contact connection of port connecting tube, the first port 41 and the inner surface of the second port 42 are equipped with the linking screw thread of fixed conducting rod.
In order to control the rotation situation of driving motor 21, two inductive switches are set on driving motor 21, for controlling
The transmission direction and transmission distance of driving motor 21, wherein, it is spaced pre-determined distance between two inductive switches.It is relative with inductive switch
, two aluminium flakes corresponding with inductive switch are provided with drive link 22, wherein, the distance between two aluminium flakes are equal to two
The distance of inductive switch.
The standard potential transformer scene self checking that the utility model embodiment provides also includes control with standard is compared
Panel, switch control power supply 10 are electrically connected by the electric connector on control panel with disconnecting switch 20.
Be additionally provided with control panel power control switch, power lights, closing switch, combined floodgate indicator lamp, separating brake switch and
Separating brake indicator lamp, wherein, power control switch, closing switch and separating brake switch to be compared for controlling in transformer self-checking system
Incision to standard is cut out.Power control switch is band light bar lock-switch；Closing switch is self-complex switch with separating brake switch.
Connect disconnecting switch 20 and control power supply, press closing switch, combined floodgate indicator lamp is bright, and driving motor 21 rotates, and passes through
The middle gear of driving motor 21 and drive link 22 drive the conducting rod 26 of composite insulator 23 and the 3rd to the direction one of core assembly 50
Secondary winding high voltage end movement, makes core assembly 50 cut transformer self-checking system, compares standard as transformer self-correcting system
The standard of system, primary standard voltage transformer are tested voltage transformer, pass through JJG314-2010 the most《Measurement mutual induction of voltage
Device》The error of measurement method of recommendation, the error of primary standard voltage transformer is measured, as error information and the data of laboratory measurement are fuller
Sufficient error variance requirement, that is, it is overproof to exclude the error information caused by the self reason of voltage transformer error check system.
The disconnecting switch 20 when inductive switch of the aluminium flake away from transformer checking system by close core assembly 50
Control circuit switches, and driving motor 21 stops operating, and when pressing separating brake switch, separating brake indicator lamp is bright, and driving motor 21 rotates,
The conducting rod 26 of composite insulator 23 and the 3rd is driven to away from the first winding high pressure of core assembly 50 by gear and drive link 22
The direction movement at end, disconnects core assembly 50 and transformer self-checking system, when the aluminium flake close to core assembly 50 pass through it is remote
From transformer checking system inductive switch when disconnecting switch 20 control circuit switch again, driving motor 20 stops operating,
So as to realize by controlling disconnecting switch 20 to realize being connected and disconnected from for core assembly 50 and transformer self-checking system.
Inductive switch can include infrared sensing switch, general common limit switch all buffering areas, and this practicality
It is defeated with moving conductive rod connection comparison standard high-voltage to drive link 22 that the comparison standard that new embodiment provides cuts out loop
The position gone out behind end and dynamics require very high, because infrared sensing switch is swift in response therefore can using infra-red sensor switch
To meet requirement.
Referring to Fig. 5, a kind of standard potential transformer scene self-checking system provided for the utility model embodiment connects
Line schematic diagram, Fig. 6 are that a kind of standard potential transformer scene self checking that the utility model embodiment provides compares standard
Elementary diagram, as shown in Figure 5, Figure 6, when in testing ground calibration potential transformator, there is subject voltage transformer error
During overproof situation, the standard potential transformer scene self checking provided using the utility model embodiment is excluded with standard is compared
Failure.
Referring to Fig. 7, mark is compared for a kind of standard potential transformer scene self checking that the utility model embodiment provides
The application method schematic flow sheet of quasi- device, as shown in fig. 7, a kind of standard potential transformer that the utility model embodiment provides shows
Field self checking check method includes：
S10：Whether the output of experiment power supply is zeroed in verification transformer checking system and whether power supply switch disconnects.
If the output is zeroed and the power supply switches off, step S20 is performed：To the comparison standard
Carry out line.
If the output is not zeroed and/or power supply switch does not disconnect, step S11 is performed：By described in
Output end is returned and/or the power supply switches off, and then performs step S20 again：Line is carried out to the comparison standard.
S30：Access external control power supply and connect external power supply controlling switch；
S40：Closing switch is connected, makes the first winding high-pressure side of the core assembly of the comparison standard and the mutual inductance
The high-voltage output end connection of device check system.
S50：Disconnect external power supply controlling switch, connect the power supply switch, adjust the experiment power supply output, delay
It is slow to boost to the 20% of rated voltage of standard potential transformer, record test data.
S60：Continue slowly to boost to the 50% of rated voltage of standard potential transformer, record test data.
S70：The experiment power supply output is adjusted, is slowly depressurized to zero, disconnects the power supply switch.
S80 connects external power supply controlling switch, connects separating brake switch, make a high-pressure side of the core assembly with it is described
The high-voltage output end of transformer checking system disconnects.
S90：Deenergization controlling switch, by the test data and the transformer checking system Plays mutual induction of voltage
Verification data before device dispatches from the factory compares.
The standard potential transformer scene self checking that the utility model embodiment provides includes experiment electricity with standard is compared
Source, core assembly, experiment power supply link block and disconnecting switch, the experiment power supply and experiment power supply link block electricity
Connection, disconnecting switch electrical connection switch control power supply, after the disconnecting switch closure, the experiment power supply link block with
The core assembly is fixedly connected.The utility model embodiment controls transformer self-checking system by controlling disconnecting switch
The middle incision for comparing standard is cut out, and directly can be carried out the standard potential transformer in transformer checking system as subject
Verify verification.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present.
Described above is only specific embodiment of the present utility model, is made skilled artisans appreciate that or realizing this
Utility model.A variety of modifications to these embodiments will be apparent to one skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.
Therefore, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and original disclosed herein
The reason most wide scope consistent with features of novelty.
Above-described the utility model embodiment does not form the restriction to scope of protection of the utility model.
Claims (9)
1. a kind of standard potential transformer scene self checking comparison standard, it is characterised in that including experiment power supply (30), iron
Core assembly (50), experiment power supply link block (40) and disconnecting switch (20), the experiment power supply (30) and the experiment electricity
Source link block (40) electrically connects, disconnecting switch (20) the electrical connection switch control power supply (10), the disconnecting switch (20)
After closure, the experiment power supply link block (40) is fixedly connected with the core assembly (50), wherein,
The disconnecting switch (20) includes driving motor (21), drive link (22), composite insulator (23), the first voltage equalizing ball
(24), the second voltage equalizing ball (25) and the 3rd conducting rod (26), described drive link (22) one end are rotatablely connected with driving motor (21),
The other end of the drive link (22) is connected with the composite insulator (23), composite insulator (23) other end and the 3rd
Conducting rod (26) connects；
The experiment power supply link block (40) includes four port connecting tubes, and the four ports connecting tube includes mutually perpendicular the
The third connectivity mouth (43) and the 4th port (44) that one port (41) penetrates with the second port (42) and along same bearing of trend, institute
State the first port (41) and be each perpendicular to the third connectivity mouth (43) and the 4th port (43) with the second port (42)；The threeway
Mouth (43) is that the 3rd conducting rod (26) connects port, and the 4th port (44) is that the core assembly (50) connection is led to
Mouthful.
2. standard potential transformer scene as claimed in claim 1 self checking comparison standard, it is characterised in that described four
The bearing of trend of third connectivity mouth (43) and the 4th port (44) described in port connecting tube interior edge is provided with the 3rd conducting rod (26), leans on
One end of 3rd conducting rod (26) of the nearly third connectivity mouth (43) passes through the composite insulator (23) and the drive link
(22) connect；One end of 3rd conducting rod (26) of the 4th port (44) is provided with the first voltage equalizing ball (24).
3. standard potential transformer scene as claimed in claim 2 self checking comparison standard, it is characterised in that the iron
Core assembly (50) includes first winding, secondary winding and iron core, the high-pressure side of the first winding be provided with it is described first equal
The second voltage equalizing ball (25) of pressure ball (24) contact connection.
4. standard potential transformer scene as claimed in claim 1 self checking is with comparing standard, it is characterised in that described the
The first conducting rod (411), first conducting rod (411) and booster in transformer checking system are provided with one port (41)
First winding high-voltage output end electrically connects；The second conducting rod (421) is provided with second port (42), described second is conductive
Bar (421) electrically connects with transformer checking system high-voltage terminal end, first conducting rod (411), the second conducting rod (421) with
And the 3rd conducting rod (26) pass through the four ports connector contact connection.
5. standard potential transformer scene as claimed in claim 1 self checking comparison standard, it is characterised in that the biography
Two inductive switches are provided with dynamic motor (21), for controlling the transmission direction of the driving motor (21) and being driven apart from it
In, it is spaced pre-determined distance between two inductive switches.
6. standard potential transformer scene as claimed in claim 5 self checking comparison standard, it is characterised in that the biography
Two aluminium flakes corresponding with the inductive switch are provided with lever (22), wherein, the distance between two described aluminium flakes etc.
In the distance of two inductive switches.
7. standard potential transformer scene as claimed in claim 1 self checking comparison standard, it is characterised in that also include
Control panel, the switch control power supply (10) pass through the electric connector on the control panel and the disconnecting switch (20) electricity
Connection.
8. standard potential transformer scene as claimed in claim 7 self checking comparison standard, it is characterised in that the control
Power control switch, power lights, closing switch, combined floodgate indicator lamp, separating brake switch and separating brake indicator lamp are additionally provided with panel processed,
Wherein, the power control switch, closing switch and separating brake switch compares for controlling described in transformer self-checking system
The incision of standard is cut out.
9. standard potential transformer scene as claimed in claim 8 self checking comparison standard, it is characterised in that the electricity
Source controlling switch is band light bar lock-switch；The closing switch is self-complex switch with separating brake switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720888198.0U CN206945944U (en) | 2017-07-20 | 2017-07-20 | A kind of standard potential transformer scene self checking comparison standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720888198.0U CN206945944U (en) | 2017-07-20 | 2017-07-20 | A kind of standard potential transformer scene self checking comparison standard |
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| Publication Number | Publication Date |
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| CN206945944U true CN206945944U (en) | 2018-01-30 |
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| CN201720888198.0U Active CN206945944U (en) | 2017-07-20 | 2017-07-20 | A kind of standard potential transformer scene self checking comparison standard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167759A (en) * | 2017-07-20 | 2017-09-15 | 云南电网有限责任公司电力科学研究院 | A kind of standard potential transformer live self checking comparison standard and check method |
-
2017
- 2017-07-20 CN CN201720888198.0U patent/CN206945944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167759A (en) * | 2017-07-20 | 2017-09-15 | 云南电网有限责任公司电力科学研究院 | A kind of standard potential transformer live self checking comparison standard and check method |
| CN107167759B (en) * | 2017-07-20 | 2024-02-06 | 云南电网有限责任公司电力科学研究院 | Comparison standard device for on-site self-checking of standard voltage transformer and checking method |
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