CN103675535A - High-tension transmission line power frequency parameter testing and testing connection switching integrated device - Google Patents

High-tension transmission line power frequency parameter testing and testing connection switching integrated device Download PDF

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Publication number
CN103675535A
CN103675535A CN201310631042.0A CN201310631042A CN103675535A CN 103675535 A CN103675535 A CN 103675535A CN 201310631042 A CN201310631042 A CN 201310631042A CN 103675535 A CN103675535 A CN 103675535A
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CN
China
Prior art keywords
phase
button
pilot lamp
current
connected
Prior art date
Application number
CN201310631042.0A
Other languages
Chinese (zh)
Inventor
梁琛
拜润卿
杨勇
周喜超
邢延东
马超
王晓兰
鲜龙
Original Assignee
国家电网公司
国网甘肃省电力公司
国网甘肃省电力公司电力科学研究院
兰州理工大学
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Application filed by 国家电网公司, 国网甘肃省电力公司, 国网甘肃省电力公司电力科学研究院, 兰州理工大学 filed Critical 国家电网公司
Priority to CN201310631042.0A priority Critical patent/CN103675535A/en
Publication of CN103675535A publication Critical patent/CN103675535A/en

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Abstract

The invention discloses a high-tension transmission line power frequency parameter testing and testing connection switching integrated device. The device comprises a contactor KM1, a contactor KM2, a contactor KM3, a pilot frequency power supply, a potential transformer PT1, a potential transformer PT2, a potential transformer PT3, a current transformer CT1, a current transformer CT2 and a current transformer CT3. One ends of induction coils of the potential transformer PT1, the potential transformer PT2 and the potential transformer PT3 are connected to a phase A, a phase B and a phase C of a three-phase power supply, while the other ends of the same are grounded. The current transformer CT1, the current transformer CT2 and the current transformer CT3 are arranged on the phase A, the phase B and the phase C of the three-phase power supply. Output ends of the potential transformer PT1, the potential transformer PT2, the potential transformer PT3, the current transformer CT1, the current transformer CT2 and the current transformer CT3 are connected with the input end of an acquisition circuit, and the output end of the acquisition circuit is connected with an upper computer. The purpose of safely and automatically switching connection is realized.

Description

Ultra-high-tension power transmission line power frequency parameter test switches integrated apparatus with test wiring

Technical field

The present invention relates to high-tension measurement apparatus field, particularly, relate to a kind of ultra-high-tension power transmission line power frequency parameter test and switch integrated apparatus with test wiring.

Background technology

At present; along with the high speed development of electrical network, newly-built ultra-high-tension power transmission line is more and more, and new line is before putting into operation; need to measure various power frequency parameter values, using and distribute and select the foundation of the method for operation etc. as computing system short-circuit current, relay protection setting, reckoning trend.The test event that transmission line power frequency parameter test relates to mainly comprises direct current resistance m easurem ent, positive sequence impedance measurement, positive sequence admittance measurement, zero sequence impedance measurement and zero sequence admittance measurement etc.According to the difference of test event, need to adopt the different modes of connection.At present, in test site, need tester to change by hand wiring, both reduced testing efficiency, can not guarantee again tester's handling safety.

Summary of the invention

The object of the invention is to, for the problems referred to above, propose a kind of ultra-high-tension power transmission line power frequency parameter test and switch integrated apparatus with test wiring, to realize the advantage that guarantees safety and automatic switchover wiring.

For achieving the above object, the technical solution used in the present invention is:

A kind of ultra-high-tension power transmission line power frequency parameter test switches integrated apparatus with test wiring, comprise contactor KM1, contactor KM2, contactor KM3, alien frequencies power supply, voltage transformer pt 1, voltage transformer pt 2, voltage transformer pt 3, Current Transmit 1, Current Transmit 2 summation current transformer CT3, the inlet wire of described contactor KM1 is connected with A, B and the C of the downlead of tested transmission line of electricity, the outlet of contactor KM1 is connected to the inlet wire of contactor KM2, and the outlet of contactor KM2 is connected together; One of them outlet of contactor KM1 is connected to the output terminal a of alien frequencies power supply, and other two outlets of contactor KM1 are connected to the inlet wire of contactor KM3, and the outlet of contactor KM3 is connected to respectively output terminal b and the output terminal c of alien frequencies power supply,

Inductive coil one end of described voltage transformer pt 1, voltage transformer pt 2 and voltage transformer pt 3 is connected on respectively three-phase supply A phase, B phase and C and goes up mutually, its other end ground connection, described Current Transmit 1, Current Transmit 2 summation current transformer CT3 are arranged on three-phase supply A phase, B phase and C and go up mutually, described voltage transformer pt 1, voltage transformer pt 2, voltage transformer pt 3, Current Transmit 1, Current Transmit 2 output terminals of summation current transformer CT3 and the input end of Acquisition Circuit are connected, and the output terminal of this Acquisition Circuit is connected with host computer.

Further, also comprise guidance panel, on this guidance panel, relative set connects the jack of A phase, B phase and the C phase of the downlead of tested transmission line of electricity, and the jack that connects alien frequencies power output end a, output terminal b and output terminal c, insulation/direct current resistance m easurem ent button and pilot lamp, positive sequence impedance/admittance measurement button and pilot lamp and zero sequence impedance/admittance measurement button and pilot lamp.

Further, described insulation/direct current resistance m easurem ent button, positive sequence impedance/admittance measurement button and parallel being arranged on guidance panel of zero sequence impedance/admittance measurement button.

Further, insulation/direct current resistance m easurem ent button and the pilot lamp of setting are pressed when insulation resistance and direct current resistance m easurem ent, and when pressing this button, the pilot lamp that is arranged at its top is bright, indicate current at measurement insulation resistance and direct current resistance;

Positive sequence impedance/admittance measurement the button and the pilot lamp that arrange are 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, indicate current in test positive sequence impedance and positive sequence admittance;

Zero sequence impedance/admittance measurement the button and the pilot lamp that arrange are 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, indicate current in test zero sequence impedance and zero sequence admittance.

Technical scheme of the present invention has following beneficial effect:

Technical scheme of the present invention, by contactor KM1, contactor KM2 and contactor KM3 are set, by the action of contactor KM1, contactor KM2 and contactor KM3, realize the automatic switchover of test wiring, thereby avoided the safety problem causing because of manual change's wiring, thereby reached the object that guarantees safety and automatic switchover wiring.

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Accompanying drawing explanation

Fig. 1 is the ultra-high-tension power transmission line power frequency parameter test and the electrical circuit diagram of testing wiring switching integrated apparatus described in the embodiment of the present invention;

Fig. 2 is the ultra-high-tension power transmission line power frequency parameter test and the structural representation of testing wiring switching integrated apparatus guidance panel described in the embodiment of the present invention.

By reference to the accompanying drawings, in the embodiment of the present invention, Reference numeral is as follows:

1-insulation/direct current resistance m easurem ent pilot lamp; 2-positive sequence impedance/admittance measurement pilot lamp; 3-zero sequence impedance/admittance measurement pilot lamp; 4-insulation/direct current resistance m easurem ent button; 5-positive sequence impedance/admittance measurement button; 6-zero sequence impedance/admittance measurement button.

Embodiment

Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.

As shown in Figure 1, a kind of ultra-high-tension power transmission line power frequency parameter test switches integrated apparatus with test wiring, comprise contactor KM1, contactor KM2, contactor KM3, alien frequencies power supply, voltage transformer pt 1, voltage transformer pt 2, voltage transformer pt 3, Current Transmit 1, Current Transmit 2 summation current transformer CT3, the inlet wire of contactor KM1 is connected with A, B and the C of the downlead of tested transmission line of electricity, the outlet of contactor KM1 is connected to the inlet wire of contactor KM2, and the outlet of contactor KM2 is connected together; One of them outlet of contactor KM1 is connected to the output terminal a of alien frequencies power supply, and other two outlets of contactor KM1 are connected to the inlet wire of contactor KM3, and the outlet of contactor KM3 is connected to respectively output terminal b and the output terminal c of alien frequencies power supply,

Inductive coil one end of voltage transformer pt 1, voltage transformer pt 2 and voltage transformer pt 3 is connected on respectively three-phase supply A phase, B phase and C and goes up mutually, its other end ground connection, Current Transmit 1, Current Transmit 2 summation current transformer CT3 are arranged on three-phase supply A phase, B phase and C and go up mutually, voltage transformer pt 1, voltage transformer pt 2, voltage transformer pt 3, Current Transmit 1, Current Transmit 2 output terminals of summation current transformer CT3 and the input end of Acquisition Circuit are connected, and the output terminal of this Acquisition Circuit is connected with host computer.

As shown in Figure 2, setting operation panel on the shell of this device wherein, on this guidance panel, relative set connects the jack of A phase, B phase and the C phase of the downlead of tested transmission line of electricity, and the jack that connects alien frequencies power output end a, output terminal b and output terminal c, insulation/direct current resistance m easurem ent button and pilot lamp, positive sequence impedance/admittance measurement button and pilot lamp and zero sequence impedance/admittance measurement button and pilot lamp.

Insulation/direct current resistance m easurem ent button, positive sequence impedance/admittance measurement button and parallel being arranged on guidance panel of zero sequence impedance/admittance measurement button, the parallel setting of its corresponding pilot lamp thereunder.Insulation/direct current resistance m easurem ent the button and the pilot lamp that arrange are pressed when insulation resistance and direct current resistance m easurem ent, and when pressing this button, the pilot lamp that is arranged at its top is bright, indicate current at measurement insulation resistance and direct current resistance; Positive sequence impedance/admittance measurement the button and the pilot lamp that arrange are 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, indicate current in test positive sequence impedance and positive sequence admittance; Zero sequence impedance/admittance measurement the button and the pilot lamp that arrange are 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, indicate current in test zero sequence impedance and zero sequence admittance.

Voltage transformer pt 1 in parameter testing part, PT2, PT3 is connected on A, B, between C and ground, Current Transmit 1, CT2, CT3 is connected on A, B, C is upper, and the output of the two is connected to electric current and voltage Acquisition Circuit, and Acquisition Circuit is connected with host computer.Collection plate gathers required voltage and electric current, by power transmission line power frequency calculation of parameter model, realizes positive sequence impedance, positive sequence admittance, zero sequence impedance, the isoparametric measurement of zero sequence admittance.And together with partly integrated with wiring automatic switchover, the device of being integrally formed.

A on guidance panel, B, C jack connection line downlead, a, b, c jack connects the output of alien frequencies power supply.G jack access earth terminal.Insulation/direct current resistance m easurem ent the button and the pilot lamp that arrange are pressed when insulation resistance and direct current resistance m easurem ent, 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 the button and the pilot lamp that arrange are 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 the button and the pilot lamp that arrange are 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.

Alternating voltage and current signal that alien frequencies power supply needs for generation of test, and add to measurement circuit.

Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (4)

1. a ultra-high-tension power transmission line power frequency parameter test switches integrated apparatus with test wiring, it is characterized in that, comprise contactor KM1, contactor KM2, contactor KM3, alien frequencies power supply, voltage transformer pt 1, voltage transformer pt 2, voltage transformer pt 3, Current Transmit 1, Current Transmit 2 summation current transformer CT3, the inlet wire of described contactor KM1 is connected with A, B and the C of the downlead of tested transmission line of electricity, the outlet of contactor KM1 is connected to the inlet wire of contactor KM2, and the outlet of contactor KM2 is connected together; One of them outlet of contactor KM1 is connected to the output terminal a of alien frequencies power supply, and other two outlets of contactor KM1 are connected to the inlet wire of contactor KM3, and the outlet of contactor KM3 is connected to respectively output terminal b and the output terminal c of alien frequencies power supply,
Inductive coil one end of described voltage transformer pt 1, voltage transformer pt 2 and voltage transformer pt 3 is connected on respectively three-phase supply A phase, B phase and C and goes up mutually, its other end ground connection, described Current Transmit 1, Current Transmit 2 summation current transformer CT3 are arranged on three-phase supply A phase, B phase and C and go up mutually, described voltage transformer pt 1, voltage transformer pt 2, voltage transformer pt 3, Current Transmit 1, Current Transmit 2 output terminals of summation current transformer CT3 and the input end of Acquisition Circuit are connected, and the output terminal of this Acquisition Circuit is connected with host computer.
2. ultra-high-tension power transmission line power frequency parameter test according to claim 1 switches integrated apparatus with test wiring, it is characterized in that, also comprise guidance panel, on this guidance panel, relative set connects the jack of A phase, B phase and the C phase of the downlead of tested transmission line of electricity, and the jack that connects alien frequencies power output end a, output terminal b and output terminal c, insulation/direct current resistance m easurem ent button and pilot lamp, positive sequence impedance/admittance measurement button and pilot lamp and zero sequence impedance/admittance measurement button and pilot lamp.
3. ultra-high-tension power transmission line power frequency parameter test according to claim 2 switches integrated apparatus with test wiring, it is characterized in that described insulation/direct current resistance m easurem ent button, positive sequence impedance/admittance measurement button and parallel being arranged on guidance panel of zero sequence impedance/admittance measurement button.
4. according to the ultra-high-tension power transmission line power frequency parameter test described in claim 2 or 3 and test wiring, switch integrated apparatus, it is characterized in that, insulation/direct current resistance m easurem ent the button and the pilot lamp that arrange, when insulation resistance and direct current resistance m easurem ent, press, when pressing this button, the pilot lamp that is arranged at its top is bright, indicates current at measurement insulation resistance and direct current resistance;
Positive sequence impedance/admittance measurement the button and the pilot lamp that arrange are 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, indicate current in test positive sequence impedance and positive sequence admittance;
Zero sequence impedance/admittance measurement the button and the pilot lamp that arrange are 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, indicate current in test zero sequence impedance and zero sequence admittance.
CN201310631042.0A 2013-12-02 2013-12-02 High-tension transmission line power frequency parameter testing and testing connection switching integrated device CN103675535A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104808021A (en) * 2015-03-27 2015-07-29 国网山东省电力公司青岛供电公司 Test wiring circuit for line parameter measurement and measurement method of circuit
CN105717361A (en) * 2015-03-27 2016-06-29 国网山东省电力公司青岛供电公司 Method for measuring inter-line capacitive reactance and grounding capacitive reactance
CN107179478A (en) * 2017-06-09 2017-09-19 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of submarine cable parameter detecting system
CN107181401A (en) * 2017-06-09 2017-09-19 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of anti-jamming power-supply for submarine cable parameter detecting
CN107202937A (en) * 2017-06-09 2017-09-26 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of submarine cable parameter detection method
CN109342784A (en) * 2018-12-05 2019-02-15 国网河北省电力有限公司电力科学研究院 Transmission line of electricity tests termination and mode of connection

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CN201327509Y (en) * 2008-12-19 2009-10-14 河南电力试验研究院 High-voltage transmission line parameter measuring device and system thereof
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CN202600050U (en) * 2012-04-01 2012-12-12 甘肃省电力公司电力科学研究院 Tester for high tension transmission line
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104808021A (en) * 2015-03-27 2015-07-29 国网山东省电力公司青岛供电公司 Test wiring circuit for line parameter measurement and measurement method of circuit
CN105717361A (en) * 2015-03-27 2016-06-29 国网山东省电力公司青岛供电公司 Method for measuring inter-line capacitive reactance and grounding capacitive reactance
CN105717361B (en) * 2015-03-27 2018-06-12 国网山东省电力公司青岛供电公司 A kind of method of capacitive reactance and capacitance to earth between measurement line
CN107179478A (en) * 2017-06-09 2017-09-19 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of submarine cable parameter detecting system
CN107181401A (en) * 2017-06-09 2017-09-19 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of anti-jamming power-supply for submarine cable parameter detecting
CN107202937A (en) * 2017-06-09 2017-09-26 中国南方电网有限责任公司超高压输电公司检修试验中心 A kind of submarine cable parameter detection method
CN109342784A (en) * 2018-12-05 2019-02-15 国网河北省电力有限公司电力科学研究院 Transmission line of electricity tests termination and mode of connection

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Application publication date: 20140326