CN202600050U - Tester for high tension transmission line - Google Patents

Tester for high tension transmission line Download PDF

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Publication number
CN202600050U
CN202600050U CN 201220136733 CN201220136733U CN202600050U CN 202600050 U CN202600050 U CN 202600050U CN 201220136733 CN201220136733 CN 201220136733 CN 201220136733 U CN201220136733 U CN 201220136733U CN 202600050 U CN202600050 U CN 202600050U
Authority
CN
China
Prior art keywords
transmission line
contactor
tester
voltage
meter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220136733
Other languages
Chinese (zh)
Inventor
杨勇
李明东
秦睿
王晓兰
郑伟
智勇
郑晶晶
鲜龙
张金哲
高磊
刑延东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Original Assignee
甘肃省电力公司电力科学研究院
兰州理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 甘肃省电力公司电力科学研究院, 兰州理工大学 filed Critical 甘肃省电力公司电力科学研究院
Priority to CN 201220136733 priority Critical patent/CN202600050U/en
Application granted granted Critical
Publication of CN202600050U publication Critical patent/CN202600050U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a tester for a high tension transmission line. The tester for a high tension transmission line comprises a meter, voltage transformers PT1, PT2 and PT3 and current transformers CT1, CT2 and CT3. The voltage induction signals on the three-phase transmission lines of the high tension transmission line are transmitted by the voltage transformers PT1, PT2 and PT3 to the meter; the current sensing signals on the three-phase transmission lines of the high tension transmission line are transmitted to the meter through the current transformers CT1, CT2 and CT3. a contactor KM3 is connected to the three-phase access nodes of the voltage transformers PT1, PT2 and PT3; a contactor KM2 is in series connection between the contactor KM3 and the access nodes; and the current transformers CT1, CT2 and CT3 are connected to the ground through the contactor KM1. The purpose is achieved that the power frequency parameter test of the whole power transmission line is achieved without changing wiring.

Description

The tester that is used for ultra-high-tension power transmission line
Technical field
The utility model relates to the measurement instrument field, particularly, relates to a kind of tester that is used for ultra-high-tension power transmission line.
Background technology
At present, along with the high speed development of electrical network, same tower double back transmission line is more and more, and the Gao Shihui of the induced voltage during transmission line power frequency parameter test on the circuit reaches volts up to ten thousand, and is very big to the influence of line parameter circuit value accuracy of test.In order to measure a power transmission line power frequency parameter, and make contiguous line outage, can give and produce and life bring influence.The test event that the while transmission line power frequency parameter test relates to mainly comprises direct current resistance measurement, positive sequence impedance measurement, positive sequence admittance measurement, zero sequence impedance measurement and zero sequence admittance measurement.The wiring of each test event is different, needs the manual wiring that changes, and has both reduced testing efficiency, and the induced voltage of volts up to ten thousand threatens tester's handling safety simultaneously.
The utility model content
The purpose of the utility model is, to the problems referred to above, proposes a kind of tester that is used for ultra-high-tension power transmission line, to realize the changing advantage that wiring just can be accomplished whole transmission line power frequency parameter test.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is:
A kind of tester that is used for ultra-high-tension power transmission line; Comprise meter, voltage transformer pt 1, PT2, PT3; Summation current transformer CT1, CT2, CT3; Said voltage transformer pt 1, PT2, PT3 are transferred to meter with the voltage induced signal of 3 phase power transmission lines on the high voltage transmission line, and said current transformer CT1, CT2, CT3 are transferred to meter with the current sensing signal of 3 phase power transmission lines on the high voltage transmission line, are connecting contactor KM3 on the 3 phase access nodes of said voltage transformer pt 1, PT2, PT3; Series contactor KM2 between said contactor KM3 and access node, said current transformer CT1, CT2, CT3 are connected with ground through contactor KM1.
Further, insulation or direct current resistance are set on the said tester control panel measure button, positive sequence impedance or admittance measurement button and zero sequence impedance or admittance measurement button, and be provided with and the corresponding pilot lamp of each button, with the display apparatus test project.
The technical scheme of the utility model is connected to the test signal of tester output a bit through KM3.Through being configured in the automatic switchover of switch and action button on the panel mode of connection when realizing direct current resistance measurements, positive sequence impedance measurement, positive sequence admittance measurement, zero sequence impedance measurement and zero sequence admittance measurement.Reach and to change the purpose that wiring just can be accomplished whole transmission line power frequency parameter test.
Further feature of the utility model and advantage will be set forth in instructions subsequently, and, partly from instructions, become obvious, perhaps understand through implementing the utility model.The purpose of the utility model can realize through the structure that in the instructions of being write, claims and accompanying drawing, is particularly pointed out and obtain with other advantages.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of instructions, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the described electrical schematic diagram that is used for the tester of ultra-high-tension power transmission line of the utility model embodiment;
The synoptic diagram of the guidance panel of the tester that Fig. 2 is used for ultra-high-tension power transmission line for the utility model embodiment is described.
Embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
As shown in Figure 1; The tester that is used for ultra-high-tension power transmission line; Comprise meter, voltage transformer pt 1, PT2, PT3, summation current transformer CT1, CT2, CT3, voltage transformer pt 1, PT2, PT3 are transferred to meter with the voltage induced signal of 3 phase power transmission lines on the high voltage transmission line; Current transformer CT1, CT2, CT3 are transferred to meter with the current sensing signal of 3 phase power transmission lines on the high voltage transmission line; Connecting contactor KM3 on the 3 phase access nodes of voltage transformer pt 1, PT2, PT3, series contactor KM2 between contactor KM3 and access node, current transformer CT1, CT2, CT3 are connected with ground through contactor KM1.
Voltage transformer pt 1, PT2, PT3 are connected on the three phase transmission line A of high voltage transmission line, and B between C and the ground, directly measures the induced voltage between test line downlead and the ground through voltage, currents combination table UI3; Current transformer CT1, CT2, CT3 are connected on the three phase transmission line A of high voltage transmission line, B, and C is last, through the induction current between voltage, the direct measuring circuit downlead of currents combination table UI3 and the ground.The inlet wire of contactor KM1 contact is connected to the A of the three phase transmission line of tested high voltage transmission line, B, the following lead end of C, the outlet ground connection of contactor KM1.The inlet wire of contactor KM2 contact is connected to the A of the three phase transmission line of tested high voltage transmission line simultaneously, B, and the following lead end of C, leading-out terminal are connected to the output terminal a of transmission line power frequency parameter test tester, b, c.The inlet wire of contactor KM3 contact is connected to the output terminal a of tester, b, c, leading-out terminal three-phase short circuit.
As shown in Figure 2, insulation or direct current resistance are set on the tester control panel measure button, positive sequence impedance or admittance measurement button and zero sequence impedance or admittance measurement button, and be provided with and the corresponding pilot lamp of each button, with the display apparatus test project.A on the panel, B, the C jack connects the A of the three phase transmission line of high voltage transmission line, B, on the following lead-in wire of C, a, b, c jack are parameter testing output.The G jack is an earth terminal.The insulation that is provided with/direct current resistance is measured button and pilot lamp, when insulation resistance and direct current resistance measurement, presses, and when pressing this button, the pilot lamp that is arranged at its top is bright, indicates current test event; Positive sequence impedance/admittance measurement button and the pilot lamp that is provided with pressed when positive sequence impedance measurement and positive sequence admittance measurement, and when pressing this button, the pilot lamp that is arranged at its top is bright, indicates current test event; Zero sequence impedance/admittance measurement button and the pilot lamp that is provided with pressed when zero sequence impedance measurement and zero sequence admittance measurement, and when pressing this button, the pilot lamp that is arranged at its top is bright, indicates current test event; The circuit three-phase earthing switch that is provided with has and closes and divide two states, when switching to when closing state, makes the KM1 ground connection of circuit downlead through Fig. 1, and when switching to the branch state, the circuit downlead breaks off with ground.
What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims (2)

1. tester that is used for ultra-high-tension power transmission line; It is characterized in that; Comprise meter, voltage transformer pt 1, PT2, PT3; Summation current transformer CT1, CT2, CT3; Said voltage transformer pt 1, PT2, PT3 are transferred to meter with the voltage induced signal of 3 phase power transmission lines on the high voltage transmission line, and said current transformer CT1, CT2, CT3 are transferred to meter with the current sensing signal of 3 phase power transmission lines on the high voltage transmission line, are connecting contactor KM3 on the 3 phase access nodes of said voltage transformer pt 1, PT2, PT3; Series contactor KM2 between said contactor KM3 and access node, said current transformer CT1, CT2, CT3 are connected with ground through contactor KM1.
2. the tester that is used for ultra-high-tension power transmission line according to claim 1; It is characterized in that; Insulation or direct current resistance are set on the said tester control panel measure button, positive sequence impedance or admittance measurement button and zero sequence impedance or admittance measurement button; And be provided with and the corresponding pilot lamp of each button, with the display apparatus test project.
CN 201220136733 2012-04-01 2012-04-01 Tester for high tension transmission line Expired - Lifetime CN202600050U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220136733 CN202600050U (en) 2012-04-01 2012-04-01 Tester for high tension transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220136733 CN202600050U (en) 2012-04-01 2012-04-01 Tester for high tension transmission line

Publications (1)

Publication Number Publication Date
CN202600050U true CN202600050U (en) 2012-12-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220136733 Expired - Lifetime CN202600050U (en) 2012-04-01 2012-04-01 Tester for high tension transmission line

Country Status (1)

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CN (1) CN202600050U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102590627A (en) * 2012-04-01 2012-07-18 甘肃省电力公司电力科学研究院 Test instrument for high-voltage power transmission line
CN103675535A (en) * 2013-12-02 2014-03-26 国家电网公司 High-tension transmission line power frequency parameter testing and testing connection switching integrated device
CN104981708A (en) * 2013-02-06 2015-10-14 阿尔斯通技术有限公司 Device for signal processing in an electrical installation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102590627A (en) * 2012-04-01 2012-07-18 甘肃省电力公司电力科学研究院 Test instrument for high-voltage power transmission line
CN104981708A (en) * 2013-02-06 2015-10-14 阿尔斯通技术有限公司 Device for signal processing in an electrical installation
CN104981708B (en) * 2013-02-06 2017-11-14 通用电气技术有限公司 For the processor device handled the signal in electric power facility
CN103675535A (en) * 2013-12-02 2014-03-26 国家电网公司 High-tension transmission line power frequency parameter testing and testing connection switching integrated device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: STATE ELECTRIC NET CROP.

Free format text: FORMER OWNER: GANSU ELECTRIC POWER CORPORATION, ELECTRIC POWER RESEARCH INSTITUTE

Effective date: 20131025

Owner name: GANSU ELECTRIC POWER CORPORATION, ELECTRIC POWER R

Free format text: FORMER OWNER: LANZHOU UNIVERSITY OF TECHNOLOGY

Effective date: 20131025

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 730000 LANZHOU, GANSU PROVINCE TO: 100031 XICHENG, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20131025

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: Gansu Electric Power Corporation Electric Power Science Research Institute

Patentee after: Lanzhou University Of Technology

Address before: Qilihe District of Gansu city in Lanzhou Province, 730000 West East Road No. 648

Patentee before: Gansu Electric Power Corporation Electric Power Science Research Institute

Patentee before: Lanzhou University Of Technology

CX01 Expiry of patent term

Granted publication date: 20121212

CX01 Expiry of patent term