CN206710585U - The control system of great current mutual inductor site error verification - Google Patents

The control system of great current mutual inductor site error verification Download PDF

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Publication number
CN206710585U
CN206710585U CN201720620998.4U CN201720620998U CN206710585U CN 206710585 U CN206710585 U CN 206710585U CN 201720620998 U CN201720620998 U CN 201720620998U CN 206710585 U CN206710585 U CN 206710585U
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integrated form
power supply
current
mutual inductor
form operating
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CN201720620998.4U
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Inventor
许灵洁
沈建良
孙军
陈骁
张卫华
周琦
郭鹏
陈江洪
梅光伟
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Wuhan Pandian Sci Tech Co ltd
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Zhejiang Electric Power Co Ltd
Marketing Service Center of State Grid Zhejiang Electric Power Co Ltd
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WUHAN PANDIAN TECHNOLOGY Co Ltd
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Zhejiang Electric Power Co Ltd
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Abstract

The utility model discloses a kind of control system of great current mutual inductor site error verification.Control system currently used for the verification of great current mutual inductor site error is mostly comparatively laborious, and security is not high, and operating efficiency is not also high.Current transformer field calibration system of the present utility model, experimental enviroment monitoring system are connected with integrated form operating system, and the integrated form operating system includes integrated form operating table surface and the man-machine interaction giant-screen in integrated form operating table surface;The current transformer field calibration system includes control power supply, capacitive compensation device, current lifting device summation current transformer error of measurement check system, the current transformer field calibration system is used for current mutual inductor on site error checking, control power supply connection capacitive compensation device, capacitive compensation device is in parallel with current lifting device, and current transformer error of measurement check system is used for the up-flow error checking for being tested current transformer.The utility model has the advantages of operating efficiency height, safety and stability, high verification accuracy rate.

Description

The control system of great current mutual inductor site error verification
Technical field
Power equipment error checking field is the utility model is related to, specifically a kind of great current mutual inductor site error The control system of verification.
Background technology
Due in power system electric energy large-scale production and exchange be related to the tremendous economic interests of all departments, power plant and electricity Be intended to settle accounts by electric energy tariff between net, between networking lines, between power network and large user, high-voltage electric-energy meter it is accurate Property and reliability also turn into each side be concerned about focal issue.Electric power meter is by high-tension current, voltage transformer, electric energy meter Formed with secondary circuit.Wherein, current transformer and voltage transformer are that the work(such as measurement, metering, protection are undertaken in power system The power equipment of energy, quantity is more, power grid security economical operation is influenceed big.In order to ensure transformer equipment is in serviceable condition, Except requiring that its insulation can be outer, it is necessary to ensure that measurement error meets its accurate rank, its its accuracy directly influences electricity Power market it is fair, just.According to JJG1021-2007《Electric power mutual-inductor》National metrological verification regulations provide, except need into Calibrating is outer first for row, also on-site proving should be periodically carried out to transformer and be traced to the source with national standard to ensure its accuracy.
Existing great current mutual inductor on-site calibration device is generally separate structure, testing equipment volume is big, weight is heavy, Equipment is scattered, and it is big to transport and build pilot system workload, frequently entrucking, unload, lift and one easily is caused to testing equipment Fixed damage;Moreover, test connection workload is big, complicated, operating efficiency is not high, requires high to testing crew;It is experiment automatized Degree is relatively low.It can be seen that the control system currently used for the verification of great current mutual inductor site error is mostly comparatively laborious, security is not Height, operating efficiency be not also high.
Utility model content
Technical problem to be solved in the utility model is the defects of overcoming above-mentioned prior art to exist, there is provided a kind of safety The control system of stable great current mutual inductor site error verification, to improve operating efficiency and verification accuracy rate.
Therefore, the utility model adopts the following technical scheme that:The control system of great current mutual inductor site error verification, Including current transformer field calibration system, integrated form operating system and experimental enviroment monitoring system, the current transformer shows Field check system, experimental enviroment monitoring system are connected with integrated form operating system, and the integrated form operating system includes collection Accepted way of doing sth operating table surface and the man-machine interaction giant-screen in integrated form operating table surface;
The current transformer field calibration system includes control power supply, capacitive compensation device, current lifting device and Current Mutual Inductance Device error of measurement check system, the current transformer field calibration system are used for current mutual inductor on site error checking, control power supply Capacitive compensation device is connected, capacitive compensation device is in parallel with current lifting device, and current transformer error of measurement check system is used to be tested electric current The up-flow error checking of transformer;
The integrated form operating system is used for control electric current mutual inductor on site check system and monitoring test environmental monitoring system The monitoring signals of system;
The experimental enviroment monitoring system is used for the humiture in monitoring test place.
On the basis of above-mentioned technical proposal, the control system also includes acoustooptic alarm system, the sound and light alarm system System includes being arranged on the warning lamp at the top of mobile laboratory, control line and the integrated form operating system of the acoustooptic alarm system Integrated form operating table surface is connected.
On the basis of above-mentioned technical proposal, the acoustooptic alarm system also includes being arranged on mobile laboratory's exterior lateral sides Caution bell.
On the basis of above-mentioned technical proposal, the experimental enviroment monitoring system passes through warm and humid supervising device monitoring test field The humiture on ground, and the temperature-humidity signal of wet supervising device is sent to man-machine interaction giant-screen.
On the basis of above-mentioned technical proposal, the current transformer error of measurement check system include standard current transformer, Current loading case, Intelligent transformator tester and error interference test cell, the output end of current lifting device by high current wire with Standard current transformer is connected, and Intelligent transformator tester is connected with man-machine interaction giant-screen, error interference test cell and intelligence Can mutual-inductor tester connection.
On the basis of above-mentioned technical proposal, the integrated form operation of the capacitive compensation device connection integrated form operating system Table top, and control is compensated by the compensation control button of integrated form operating table surface, reach the optimal compensation effect of experiment demand Fruit.
On the basis of above-mentioned technical proposal, the control power supply includes electronic power supply and electrician's power supply, according to experiment need Ask and select to open the output end and capacitive of electronic power supply or electrician's power supply, electronic power supply and electrician's power supply in integrated form operating table surface Compensation device connects.
On the basis of above-mentioned technical proposal, the electronic power supply and electrician's power supply pass through master in integrated form operating table surface Knob and vernier knob regulation are adjusted, is easy to be accurately positioned electric current.
On the basis of above-mentioned technical proposal, electrician's power supply is revolved in integrated form operating table surface by just anti-phase regulation The regulation direction of button switching electrician power supply fine setting pressure regulator, is easy to fast positioning electric current.
Compared with prior art, the utility model has the advantage that as follows:The utility model is used for high current mutual inductance Device site error verifies, it is only necessary to which outside laboratory after simple wiring, operating personnel can complete all verifications by control system Work, improves operating efficiency;Meanwhile error interference test cell of the present utility model can be improved with measurement error interference volume The accuracy of test data;Operating personnel isolate with high-potting part, have ensured the personal safety of operating personnel;Provided with field Ground monitors and warning system, has ensured the safety of experiment;Whole movable detecting platform safely may be used without hydraulic machinery motion Lean on.
Brief description of the drawings
Fig. 1 is the structured flowchart of the control system of the utility model embodiment great current mutual inductor site error verification;
Fig. 2 is the control principle block diagram of the utility model embodiment integrated form operating system;
Fig. 3 is the control method flow of the utility model embodiment great current mutual inductor site error checking control system Figure.
Embodiment
The utility model is described in further detail with reference to Figure of description and specific embodiment.
Referring to shown in Fig. 1, Fig. 2, the utility model embodiment provides a kind of control of great current mutual inductor site error verification System processed, the system include current transformer field calibration system, integrated form operating system and experimental enviroment monitoring system, acousto-optic Warning system, the current transformer field calibration system, experimental enviroment monitoring system are connected with integrated form operating system, The integrated form operating system includes integrated form operating table surface and the man-machine interaction giant-screen in integrated form operating table surface;
The current transformer field calibration system includes control power supply, capacitive compensation device, current lifting device and Current Mutual Inductance Device error of measurement check system, the current transformer field calibration system are used for current mutual inductor on site error checking, control power supply Capacitive compensation device is connected, capacitive compensation device is in parallel with current lifting device, and current transformer error of measurement check system is used to be tested electric current The up-flow error checking of transformer;The integrated form operating system is used for control electric current mutual inductor on site check system and monitoring tries Test the monitoring signals of environmental monitoring system;
The experimental enviroment monitoring system is used for the humiture in monitoring test place.
Wherein, the acoustooptic alarm system includes the warning lamp being arranged at the top of mobile laboratory and is arranged on mobile experiment The caution bell of outdoor side, the control line of the acoustooptic alarm system and the integrated form operating table surface phase of integrated form operating system Connection.The experimental enviroment monitoring system is by the humiture in warm and humid supervising device monitoring test place, and wet supervising device Temperature-humidity signal is sent to man-machine interaction giant-screen.
Wherein, the current transformer error of measurement check system includes standard current transformer, current loading case, intelligent mutual inductance Device tester and error interference test cell, the output end of current lifting device are connected by high current wire with standard current transformer, Intelligent transformator tester is connected with man-machine interaction giant-screen.The capacitive compensation device connection integrated form operating system integrates Formula operating table surface, and control is compensated by the compensation control button of integrated form operating table surface, reach the optimal of experiment demand Compensation effect, error interference test cell are connected with the difference stream signal input part of Intelligent transformator tester.
In the present embodiment, the control power supply includes electronic power supply and electrician's power supply, according to experiment demand in integrated form Electronic power supply or electrician's power supply, the output end and capacitive compensation device company of electronic power supply and electrician's power supply are opened in operating table surface selection Connect.The electronic power supply and electrician's power supply are adjusted in integrated form operating table surface by homophony knob and vernier knob, are easy to essence True location current, electrician's power supply switch the fine setting of electrician's power supply by just anti-phase adjusting knob in integrated form operating table surface and adjusted The regulation direction of depressor, is easy to fast positioning electric current.
It is shown in Figure 3, the control method of the utility model great current mutual inductor site error checking control system, including Following steps:
After the completion of S1, current transformer field calibration system wiring, transformer station's power supply is connected, opens integrated form operating system Integrated form operating table surface power switch;Closure warning lamp switch, to show that power supply has been turned on;By caution bell, to show experiment opening Begin;
S2, temperature-humidity signal is observed on the man-machine interaction giant-screen of integrated form operating system, if experimental enviroment meets to want Ask, prepare experiment;
S3, selection current testing, select to open electronic power supply or electrician according to experiment demand in integrated form operating table surface Power supply;
S4, integrated form operating system calculate verification loop primary parameter and required compensation capacity automatically, and control switching to hold Property compensation device compensates;
S5, error interference test cell is adjusted to test mode, by integrated form operating system by current lifting device flow up to After 120% rated current, then the electric current of current lifting device is reduced to 0, observes the error letter on man-machine interaction giant-screen in the process Number;If within the 1/20 of subject current transformer error limit value, error interference test cell is adjusted to test shape for error State continues to test, and is transferred to step S6;If error exceedes the 1/20 of subject current transformer error limit value, termination test;
S6, integrated form operating system start automatic up-flow verification, and generate test report.
Wherein, error limit determines according to the class of accuracy of subject current transformer.In actual applications, error interference Test cell is settable two grades, that is, tests shelves and experiment shelves, and when testing shelves state, difference stream signal cannot be introduced into Intelligent transformator Tester, when testing shelves state, difference stream signal normally enters Intelligent transformator tester.
Those skilled in the art can carry out various modifications and variations to the utility model embodiment, if these are changed With modification within the scope of the utility model claims and its equivalent technologies, then these modifications and variations are also new in this practicality Within the protection domain of type.
The prior art that the content not being described in detail in specification is known to the skilled person.

Claims (9)

  1. A kind of 1. control system of great current mutual inductor site error verification, it is characterised in that:Including current mutual inductor on site school Check system, integrated form operating system and experimental enviroment monitoring system, the current transformer field calibration system, experimental enviroment prison Examining system is connected with integrated form operating system, and the integrated form operating system includes integrated form operating table surface and embedded in integrated Man-machine interaction giant-screen in formula operating table surface;
    The current transformer field calibration system includes control power supply, capacitive compensation device, current lifting device summation current transformer and surveyed Poor check system, the current transformer field calibration system are used for current mutual inductor on site error checking, control power supply connection Capacitive compensation device, capacitive compensation device is in parallel with current lifting device, and current transformer error of measurement check system is used to be tested Current Mutual Inductance The up-flow error checking of device;
    The integrated form operating system is used for control electric current mutual inductor on site check system and monitoring test environmental monitoring system Monitoring signals;
    The experimental enviroment monitoring system is used for the humiture in monitoring test place.
  2. 2. the control system of great current mutual inductor site error verification as claimed in claim 1, it is characterised in that:The control System also includes acoustooptic alarm system, and the acoustooptic alarm system includes being arranged on the warning lamp at the top of mobile laboratory, described The control line of acoustooptic alarm system is connected with the integrated form operating table surface of integrated form operating system.
  3. 3. the control system of great current mutual inductor site error verification as claimed in claim 2, it is characterised in that:The acousto-optic Warning system also includes the caution bell for being arranged on mobile laboratory's exterior lateral sides.
  4. 4. the control system of great current mutual inductor site error verification as claimed in claim 1, it is characterised in that:The experiment Environmental monitoring system is by the humiture in warm and humid supervising device monitoring test place, and the temperature-humidity signal transmission of wet supervising device To man-machine interaction giant-screen.
  5. 5. the control system of great current mutual inductor site error verification as claimed in claim 1, it is characterised in that:The electric current Transformer error of measurement check system includes standard current transformer, current loading case, Intelligent transformator tester and error interference and surveyed Unit is tried, the output end of current lifting device is connected by high current wire with standard current transformer, Intelligent transformator tester and people Machine interaction giant-screen connection, error interference test cell are connected with Intelligent transformator tester.
  6. 6. the control system of great current mutual inductor site error verification as claimed in claim 5, it is characterised in that:The capacitive Compensation device connects the integrated form operating table surface of integrated form operating system, and the compensation control button for passing through integrated form operating table surface Compensate control.
  7. 7. the control system of great current mutual inductor site error verification as claimed in claim 1, it is characterised in that:The control Power supply includes electronic power supply and electrician's power supply, and unlatching electronic power supply or electrician are selected in integrated form operating table surface according to experiment demand The output end of power supply, electronic power supply and electrician's power supply is connected with capacitive compensation device.
  8. 8. the control system of great current mutual inductor site error verification as claimed in claim 7, it is characterised in that:The electronics Power supply and electrician's power supply are adjusted in integrated form operating table surface by homophony knob and vernier knob, are easy to be accurately positioned electric current.
  9. 9. the control system of great current mutual inductor site error verification as claimed in claim 8, it is characterised in that:The electrician Power supply switches the regulation direction of electrician's power supply fine setting pressure regulator in integrated form operating table surface by just anti-phase adjusting knob, is easy to Fast positioning electric current.
CN201720620998.4U 2017-05-31 2017-05-31 The control system of great current mutual inductor site error verification Active CN206710585U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107167755A (en) * 2017-05-31 2017-09-15 国网浙江省电力公司电力科学研究院 The control system and its control method of great current mutual inductor site error verification
CN110703176A (en) * 2019-11-29 2020-01-17 江苏方天电力技术有限公司 Current transformer error testing system and method under limit temperature
CN111289938A (en) * 2020-03-12 2020-06-16 国网山东省电力公司电力科学研究院 Current transformer error calibration equipment
CN111443323A (en) * 2020-04-26 2020-07-24 国网福建省电力有限公司 30000A current transformer field mobile calibration system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107167755A (en) * 2017-05-31 2017-09-15 国网浙江省电力公司电力科学研究院 The control system and its control method of great current mutual inductor site error verification
CN110703176A (en) * 2019-11-29 2020-01-17 江苏方天电力技术有限公司 Current transformer error testing system and method under limit temperature
CN111289938A (en) * 2020-03-12 2020-06-16 国网山东省电力公司电力科学研究院 Current transformer error calibration equipment
CN111289938B (en) * 2020-03-12 2022-02-08 国网山东省电力公司营销服务中心(计量中心) Current transformer error calibration equipment
CN111443323A (en) * 2020-04-26 2020-07-24 国网福建省电力有限公司 30000A current transformer field mobile calibration system

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Address after: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane

Patentee after: STATE GRID ZHEJIANG ELECTRIC POWER COMPANY LIMITED ELECTRIC POWER Research Institute

Patentee after: STATE GRID CORPORATION OF CHINA

Patentee after: WUHAN PANDIAN SCI-TECH CO.,LTD.

Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane

Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID ZHEJIANG ELECTRIC POWER Co.

Patentee before: State Grid Corporation of China

Patentee before: WUHAN PANDIAN TECHNOLOGY Co.,Ltd.

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Effective date of registration: 20210129

Address after: 311100 Building 5, 138 Yunlian Road, Yuhang District, Hangzhou City, Zhejiang Province

Patentee after: Marketing service center of State Grid Zhejiang Electric Power Co.,Ltd.

Patentee after: STATE GRID CORPORATION OF CHINA

Patentee after: WUHAN PANDIAN SCI-TECH CO.,LTD.

Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane

Patentee before: STATE GRID ZHEJIANG ELECTRIC POWER COMPANY LIMITED ELECTRIC POWER Research Institute

Patentee before: STATE GRID CORPORATION OF CHINA

Patentee before: WUHAN PANDIAN SCI-TECH Co.,Ltd.

TR01 Transfer of patent right