CN208654305U - Current transformer error calibration equipment - Google Patents
Current transformer error calibration equipment Download PDFInfo
- Publication number
- CN208654305U CN208654305U CN201820962981.1U CN201820962981U CN208654305U CN 208654305 U CN208654305 U CN 208654305U CN 201820962981 U CN201820962981 U CN 201820962981U CN 208654305 U CN208654305 U CN 208654305U
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- current transformer
- carriage body
- arm
- calibrating installation
- cuts
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Abstract
The utility model provides a kind of current transformer error calibration equipment, it is related to current transformer error Calibration Technology field, the current transformer error calibration equipment, comprising: walking mechanism, driving device and calibrating installation, calibrating installation with current transformer to be measured for connecting；Calibrating installation is connect by driving device with walking mechanism, so that walking mechanism drives calibrating installation movement；Walking mechanism includes carriage body, and opening is provided on carriage body outer wall, and driving device so that calibrating installation is stretched out out of carriage body, or is recovered in carriage body for driving calibrating installation to move along opening direction.Duplicate manpower transport can be avoided using this equipment, the field connection between device and device can greatly reduce working strength, improve working efficiency, power off time is reduced, meanwhile, equipment is played a certain protective role.
Description
Technical field
The utility model relates to current transformer error Calibration Technology fields, more particularly, to a kind of current transformer error
Calibration equipment.
Background technique
The error of current transformer is determined by the performance of the structure and material of iron core, i.e., cuts with the length of magnetic path, iron core
Face is related with magnetic permeability, related with the number of turns of coil and resistance, the size of secondary load and load power factor angle.Than poor, angle
Difference and iron core magnetic permeability and the number of turns of sectional area, secondary coil square are inversely proportional, with the length of magnetic path and secondary coil impedance, two
Secondary load is directly proportional, and is influenced by secondary load power-factor angle and core loss angle.Cause the outer of current transformer error
Boundary's condition has: primary current, supply frequency, secondary load impedence (including contact resistance), iron core remanent magnetism, external magnetic field and warm and humid
Degree influence etc..
The current transformer majority that power plant and substation field use belongs to installing type equipment, can not withdraw scene, meter
Amount error testing test must be carried out at the scene.Traditional current mutual inductor field detecting test uses standard current transformer ratio
Compared with method, needed current lifting device, standard current transformer, pressure regulator, mutual-inductor tester, load when test every time through manpower
Case, test lead etc. carry Truck, after arriving at test site, then temporarily build testing ground in vacant lot, a large amount of manpower is removed
Fortune, handling, attaching line obtain that the work of live ct calibrating is heavy, and labor intensity is high, carry out the work when meeting severe winter heat, extremely examine
Test personnel's physical fitness.
Conventional on-site calibration method working efficiency is low, time-consuming and laborious, installs the examination that has a power failure for a long time brought by wiring
It tests, brings the loss of economic benefit.In terms of safety, since field device distribution is mixed and disorderly, during test, attaching line is very
Complexity is easy to bring human error, and equipment loads and unloads repeatedly, carries, is easy to damage equipment during wiring, and there are equipment, people
The security risk of body.
Utility model content
The purpose of this utility model is to provide a kind of current transformer error calibration equipments, to alleviate existing examined and determine
Equipment needs to repeat the technical issues of splitting with installation in journey.
A kind of current transformer error calibration equipment provided by the embodiment of the utility model, comprising: walking mechanism, driving dress
It sets and calibrating installation, the calibrating installation is used to connect with current transformer to be measured；
The calibrating installation is connect by the driving device with the walking mechanism, so that the walking mechanism drives institute
State calibrating installation movement；
The walking mechanism includes carriage body, opening is provided on the carriage body outer wall, the driving device is for driving institute
It states calibrating installation to move along the opening direction, so that the calibrating installation is stretched out out of described carriage body, or be recovered to described
In carriage body.
Further, the opening is located at the top surface of the carriage body；The driving device includes pedestal, slideway, first cuts
Arm, second cut arm, support platform and hydraulic mechanism；
The slideway is located on the pedestal, and described first cuts the lower end of arm and pedestal is hinged, and described second cuts under arm
It is provided with pulley corresponding with the slideway on end, described first, which cuts arm, cuts that arm is hinged with described second, and described first cuts arm
Upper end and second cut arm upper end connect with the support platform；
The hydraulic mechanism includes hydraulic cylinder, and described hydraulic cylinder one end and pedestal are hinged, and the other end and described first cuts arm
Or second cut arm connection, cuts arm and second for adjusting described first and cuts angle between arm, so that in the support platform
It rises or declines.
Further, be correspondingly arranged on locking structure between the slideway and the pulley so that described first cut arm with
Second, which cuts arm angle, fixes.
Further, the opening is provided with stop mechanism, and the stop mechanism includes cover board, the cover board with it is described
Carriage body is flexibly connected, so that the cover board can block the opening.
Further, the calibrating installation includes current lifting device and standard current transformer；
The current transformer error calibration equipment includes control cabinet, is provided with regulator and verification in the control cabinet
Device, the control cabinet are connect with the calibrating installation；The calibration equipment examines and determine data for recording error.
Further, the carriage body includes equipment compartment and control storehouse, and control cabinet is located in the control storehouse, the driving dress
It sets and is located in the equipment compartment with calibrating installation；
It is provided with partition between the equipment compartment and control storehouse, and is provided with watch window on the partition.
Further, earthing or grounding means is provided in the equipment compartment.
Further, the ladder for being communicated to carriage body top surface is provided on the side wall of the carriage body；
The top surface of the carriage body is provided with fence；
The material of the support platform is insulating materials.
Further, lighting device is provided on the top surface of the carriage body.
Further, it is provided with refrigerating plant in the control storehouse, for reducing the temperature in control storehouse.
The utility model embodiment bring it is following the utility model has the advantages that
Current transformer error calibration equipment provided by the embodiment of the utility model, comprising: walking mechanism, driving device and
Calibrating installation, the calibrating installation with current transformer to be measured for connecting.The calibrating installation by the driving device with
The walking mechanism connection, so that the walking mechanism drives the calibrating installation movement.The walking mechanism includes carriage body, institute
It states and is provided with opening on carriage body outer wall, the driving device is used to that the calibrating installation to be driven to move along the opening direction, with
It stretches out the calibrating installation out of described carriage body, or is recovered in the carriage body.Electricity provided by the embodiment of the utility model
Current transformer error testing equipment in use, can be moved to beside current transformer to be measured, so by walking mechanism
Calibrating installation is stretched out out of carriage body afterwards, reduces the influence that biggish work calibrating electric current generates walking mechanism, it then will inspection
Determine device to connect with current transformer to be measured, carries out error testing.Duplicate manpower transport, device can be avoided using this equipment
Field connection between device, can greatly reduce working strength, improve working efficiency, reduce power off time, meanwhile, to setting
It is standby to play a certain protective role.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is when the calibrating installation for the current transformer error calibration equipment that the utility model embodiment 1 provides stretches out
Schematic diagram；
Fig. 2 is when the calibrating installation for the current transformer error calibration equipment that the utility model embodiment 1 provides is withdrawn
Schematic diagram；
Fig. 3 is the schematic diagram for the current transformer error calibration equipment that the utility model embodiment 2 provides；
Fig. 4 is the schematic diagram for the current transformer error calibration equipment that the utility model embodiment 3 provides.
Icon: 110- equipment compartment；120- controls storehouse；210- pedestal；220- support platform；230- hydraulic mechanism；300- lid
Plate；410- current lifting device；420- standard current transformer；500- control cabinet；600- earthing or grounding means；710- ladder；720- fence；
810- lighting device；820- refrigerating plant；900- telescopic support legs.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., the orientation or positional relationship of instruction are orientation based on the figure or position
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This
Outside, such as there is term " first ", " second ", " third " are used for description purposes only, be not understood to indicate or imply relatively heavy
The property wanted.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " connected ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, it can understand that above-mentioned term is practical at this with concrete condition
Concrete meaning in novel.
The utility model provides a kind of current transformer error calibration equipment, and it is practical to this that multiple embodiments are given below
The structure of the current transformer error calibration equipment of novel offer is described in detail.
Embodiment 1
As shown in Figs. 1-2, current transformer error calibration equipment provided by the embodiment of the utility model, comprising: traveling machine
Structure (not shown), driving device and calibrating installation, the calibrating installation with current transformer to be measured for connecting.The calibrating dress
It sets and is connect by the driving device with the walking mechanism, so that the walking mechanism drives the calibrating installation movement.Institute
Stating walking mechanism includes carriage body, opening is provided on the carriage body outer wall, the driving device is for driving the calibrating installation
It moves along the opening direction, so that the calibrating installation is stretched out out of described carriage body, or is recovered in the carriage body.This reality
With new embodiment provide current transformer error calibration equipment in use, can be moved to by walking mechanism to
It surveys beside current transformer, then stretches out calibrating installation out of carriage body, reduce biggish work calibrating electric current to walking mechanism
Then calibrating installation is connect by the influence of generation with current transformer to be measured, carry out error testing.It can be avoided using this equipment
Duplicate manpower transport, the field connection between device and device can greatly reduce working strength, improve working efficiency, subtract
Few power off time, meanwhile, equipment is played a certain protective role.
Walking mechanism may include the motor of wheel and driving wheel rotation.
In the scheme that one is implemented, opening is located at the top surface of the carriage body.Driving device can be shearing type lifting device,
Driving device includes pedestal 210, slideway, first cuts arm, second cuts arm, support platform 220 and hydraulic mechanism 230.Slideway is located at
On the pedestal 210, described first cuts the lower end of arm and pedestal 210 is hinged, and described second cuts and be provided on the lower end of arm and institute
State the corresponding pulley of slideway, described first, which cuts arm, cuts that arm is hinged with described second, and described first, which cuts the upper end of arm and second, cuts arm
Upper end connect with the support platform 220；The hydraulic mechanism 230 includes hydraulic cylinder, described hydraulic cylinder one end and pedestal
210 is hinged, and the other end cuts arm with described first or second cuts arm and connect.After hydraulic cylinder elongation, first, which cuts arm and second, cuts arm
Between angle reduce, support platform 220 moves to opening upward, safe distance needed for can guarantee test, and facilitates test
Wiring；And after hydraulic cylinder retracts, first, which cuts arm and second, cuts angle between arm and increases, and support platform 220 declines, and falls back to
In carriage body.
Be correspondingly arranged on locking structure between slideway and the pulley so that described first cut arm and second cut arm institute at folder
Angle is fixed.For example, locking structure may include pin and pin hole, pin is located on pulley, and pin hole is located on slideway, when support is flat
Platform 220 moves to opening, and calibrating installation examines and determine current transformer, at this point, pin is inserted into pin hole, keeps support
Platform 220 is steady.
Opening is provided with stop mechanism, and the stop mechanism includes cover board 300, and the cover board 300 and the carriage body are living
Dynamic connection, so that the cover board 300 can block the opening.Stop mechanism can also include motor, and motor and cover board 300 connect
It connects, is exposed for driving the capping opening of cover board 300, or by opening.
For example, cover board 300 and opening edge are along hinged.Before support platform 220 is lifted up, cover board 300 is flipped outward, will
Opening is exposed, and after testing, support platform 220 is fallen back in carriage body, and cover board 300 turns to returning, by closure of openings.It is anti-
Only rainwater enters carriage body by opening.
Cover board 300 and the top plate of carriage body are slidably connected, cover board 300 can the planar slide where opening, to make to be open
Exposure or closing.
Specifically, calibrating installation includes current lifting device 410 and standard current transformer 420.Current transformer error calibrating is set
Standby includes control cabinet 500, and regulator and calibration equipment are provided in control cabinet 500, and control cabinet 500 and the calibrating installation connect
It connects；The calibration equipment examines and determine data for recording error.After support platform 220 rises to car top and safe spacing, experiment
Personnel carry out wiring, after call through test power supply, be arranged calibration equipment test parameters, control regulator start to flow up, school
Experiment device recording error examines and determine data
Carriage body includes equipment compartment 110 and control storehouse 120, and control cabinet 500 is located in the control storehouse 120, the driving dress
It sets and is located in the equipment compartment 110 with calibrating installation.Partition, and the partition are provided between equipment compartment 110 and control storehouse 120
On be provided with watch window, when test, testing crew is seen by the situation in watch window observation device storehouse 110, the outer personnel of vehicle
Examine car top up-flow situation.
Earthing or grounding means 600 is provided in equipment compartment 110.Earthing or grounding means 600 electrically connects composition between equipment compartment 110 and ground
The equipment connect.Earthing or grounding means 600 is made of earthing pole, earth bus, down conductor, framework ground connection.It is used to realize electricity
The purpose that gas system is connected with the earth.It is directly contacted with the earth and realizes that the metal object of electrical connection is earthing pole.
Further, the ladder 710 for being communicated to carriage body top surface is provided on the side wall of carriage body, testing crew passes through ladder
710 climb to car top, and calibrating installation is connect with current transformer to be measured.The top surface of carriage body is provided with fence 720, in order to anti-
Only the testing crew of car top is surprisingly dropped.Because being needed using biggish electric current, electric current is along drive in order to prevent when calibrating
Dynamic device conduction, so the material of support platform 220 is insulating materials.
Further, in order to facilitate night time operation, lighting device 810 is provided on the top surface of carriage body.Lighting device 810 can
To include bracket and lamp body, it is flexibly connected between bracket and lamp body, the light emitting angle so as to be lamp body is adjustable.
Further, it is provided with refrigerating plant 820 in the control storehouse 120, for reducing the temperature in control storehouse 120.
Experimenter and control cabinet 500 are all located in control storehouse 120, and refrigerating plant 820 can provide comfortable work for experimenter
Environment, while can also cool down to control cabinet 500, be conducive to radiate.
Embodiment 2
As shown in figure 3, difference from Example 1 is, driving device may include pedestal 210,220 and of support platform
Hydraulic mechanism 230, the hydraulic mechanism 230 include multiple hydraulic pressure support bars, and multiple hydraulic pressure support bars are located at pedestal 210 and support
Between platform 220, more hydraulic pressure support bars extend simultaneously, support platform 220 can be promoted.
Embodiment 3
As shown in figure 4, the difference is that, opening can be set on the side wall of carriage body with Examples 1 and 2, driving dress
The laterally moved out carriage body of calibrating installation can be driven by setting.
Specifically, driving device may include sliding rail and support platform 220, sliding rail is fixed on the bottom surface of carriage body, and support is flat
Platform 220 is slidably connected with sliding rail, immobilization of assay device in support platform 220, for calibrating installation to be skidded off carriage body.
It is hinged with telescopic support legs 900 on the bottom surface of support platform 220, after support platform 220 skids off carriage body, stretches
Supporting leg 900 can be abutted with bottom surface, guarantee the stabilization of support platform 220.
In conclusion current transformer error calibration equipment provided by the embodiment of the utility model, comprising: walking mechanism,
Driving device and calibrating installation, driving device can be laterally driven, or vertical driving, the calibrating installation be used for
Current transformer connection to be measured.The calibrating installation is connect by the driving device with the walking mechanism, so that the row
The calibrating installation movement is driven into mechanism.The walking mechanism includes carriage body, and opening is provided on the carriage body outer wall, described
Driving device is for driving the calibrating installation to move along the opening direction, so that the calibrating installation is stretched out of described carriage body
Out, it or is recovered in the carriage body.Equipment is an entirety, be different from the prior art in multiple independent calibrating installations transports
The mode assembled again after arriving at the destination, reduces time.Current transformer error provided by the embodiment of the utility model
Calibration equipment in use, can be moved to beside current transformer to be measured, then by calibrating installation by walking mechanism
Stretched out out of carriage body, reduce the influence that biggish work calibrating electric current generates walking mechanism, then by calibrating installation with it is to be measured
Current transformer connection, carries out error testing.Duplicate manpower transport can be avoided using this equipment, between device and device
Field connection can greatly reduce working strength, improve working efficiency, reduce power off time, meanwhile, equipment is played certain
Protective effect.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (10)
1. a kind of current transformer error calibration equipment characterized by comprising walking mechanism, driving device and calibrating installation,
The calibrating installation with current transformer to be measured for connecting；
The calibrating installation is connect by the driving device with the walking mechanism, so that the walking mechanism drives the inspection
Determine device movement；
The walking mechanism includes carriage body, opening is provided on the carriage body outer wall, the driving device is for driving the inspection
Determine device to move along the opening direction, so that the calibrating installation is stretched out out of described carriage body, or is recovered to the carriage body
It is interior.
2. current transformer error calibration equipment according to claim 1, which is characterized in that the opening is located at the compartment
The top surface of body；The driving device includes pedestal, slideway, first cuts arm, second cuts arm, support platform and hydraulic mechanism；
The slideway is located on the pedestal, and described first cuts the lower end of arm and pedestal is hinged, and described second cuts on the lower end of arm
It is provided with pulley corresponding with the slideway, described first, which cuts arm, cuts that arm is hinged with described second, and described first cuts the upper end of arm
The upper end for cutting arm with second is connect with the support platform；
The hydraulic mechanism includes hydraulic cylinder, and described hydraulic cylinder one end and pedestal are hinged, the other end with described first cut arm or
Second cuts arm connection, cuts arm and second for adjusting described first and cuts angle between arm so that the support platform rise or
Person's decline.
3. current transformer error calibration equipment according to claim 2, which is characterized in that the slideway and the pulley
Between be correspondingly arranged on locking structure so that described first cuts arm and cuts arm angle with second and fix.
4. current transformer error calibration equipment according to claim 1, which is characterized in that the opening is provided with only
Retaining device, the stop mechanism include cover board, and the cover board is flexibly connected with the carriage body, so that the cover board can block institute
State opening.
5. current transformer error calibration equipment according to claim 1, which is characterized in that the calibrating installation includes rising
Flow device and standard current transformer；
The current transformer error calibration equipment includes control cabinet, and regulator and verification dress are provided in the control cabinet
It sets, the control cabinet is connect with the calibrating installation；The calibration equipment examines and determine data for recording error.
6. current transformer error calibration equipment according to claim 5, which is characterized in that the carriage body includes equipment compartment
With control storehouse, control cabinet is located in the control storehouse, and the driving device and calibrating installation are located in the equipment compartment；
It is provided with partition between the equipment compartment and control storehouse, and is provided with watch window on the partition.
7. current transformer error calibration equipment according to claim 6, which is characterized in that be provided in the equipment compartment
Earthing or grounding means.
8. current transformer error calibration equipment according to claim 2, which is characterized in that set on the side wall of the carriage body
It is equipped with the ladder for being communicated to carriage body top surface；
The top surface of the carriage body is provided with fence；
The material of the support platform is insulating materials.
9. current transformer error calibration equipment according to claim 1, which is characterized in that set on the top surface of the carriage body
It is equipped with lighting device.
10. current transformer error calibration equipment according to claim 6, which is characterized in that be arranged in the control storehouse
There is refrigerating plant, for reducing the temperature in control storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820962981.1U CN208654305U (en) | 2018-06-21 | 2018-06-21 | Current transformer error calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820962981.1U CN208654305U (en) | 2018-06-21 | 2018-06-21 | Current transformer error calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208654305U true CN208654305U (en) | 2019-03-26 |
Family
ID=65781777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820962981.1U Expired - Fee Related CN208654305U (en) | 2018-06-21 | 2018-06-21 | Current transformer error calibration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208654305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427091A (en) * | 2018-06-21 | 2018-08-21 | 国网宁夏电力有限公司电力科学研究院 | Current transformer error calibration equipment |
-
2018
- 2018-06-21 CN CN201820962981.1U patent/CN208654305U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427091A (en) * | 2018-06-21 | 2018-08-21 | 国网宁夏电力有限公司电力科学研究院 | Current transformer error calibration equipment |
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Legal Events
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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: 20190326 Termination date: 20210621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |