CN201327509Y - High-voltage transmission line parameter measuring device and system thereof - Google Patents
High-voltage transmission line parameter measuring device and system thereof Download PDFInfo
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- CN201327509Y CN201327509Y CNU200820183515XU CN200820183515U CN201327509Y CN 201327509 Y CN201327509 Y CN 201327509Y CN U200820183515X U CNU200820183515X U CN U200820183515XU CN 200820183515 U CN200820183515 U CN 200820183515U CN 201327509 Y CN201327509 Y CN 201327509Y
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Abstract
The utility model provides a high-voltage transmission line parameter measuring device, which comprises a security wiring module and test equipment, wherein the security wiring module comprises a high-pressure operating lever and a test line, and the high-pressure operating lever which is connected with the test line is used for connecting one end of the test line to the tested transmission line; and the other end of the test line is connected with the test equipment. The utility model also provides a high-voltage transmission line parameter measuring system. The measuring device can effectively improve the security of the measurement of high-voltage transmission line parameters, ensure the personal safety of testers during the test, and improve the working efficiency of the test.
Description
Technical field
The utility model relates to the ultra-high-tension power transmission line field, particularly relates to a kind of ultra-high-tension power transmission line parameter measuring apparatus and system.
Background technology
Before ultra-high-tension power transmission line puts into operation,, need measure the line parameter circuit value of ultra-high-tension power transmission line for the trend of calculating whole network system distributes, sets the corresponding protection definite value for circuit.
The line parameter circuit value of described ultra-high-tension power transmission line mainly comprises: the direct current resistance of transmission line of electricity, positive sequence impedance, zero sequence impedance, positive sequence electric capacity and zero sequence electric capacity etc.
When ultra-high-tension power transmission line is carried out parameter measurement, need will the testing apparatus corresponding to be connected to an end of described tested transmission line of electricity with measured parameter.
In the prior art, the tester generally adopts the manual mode of connection, and the realization testing apparatus is connected with tested transmission line of electricity.At first, the tester climbs up portal frame then with tested transmission line of electricity ground connection, and directly the p-wire that will connect testing apparatus with hand is received on the tested transmission line of electricity, removes ground wire again, begins tested transmission line of electricity is carried out parameter measurement.
But the mode of the direct wiring of this craft is relatively more dangerous.Particularly in recent years, the continuous increase of transformer station's quantity, for the better utilization transmission line corridor, overhead transmission line and the parallel circuit of joint using two-circuit even three loops are also more and more.When carrying out the transmission line parameter measurement, if the adjacent lines of tested transmission line of electricity keeps the transmission of electricity state, will produce tested transmission line of electricity and disturb, make the higher line-frequency induction voltage of generation in the described tested transmission line of electricity.When disturbing seriously, described line-frequency induction voltage can reach several ten thousand volts.
Adopt the manual mode of connection, the tester needs direct engaged test line when wiring.When line-frequency induction voltage in the tested transmission line of electricity is low, can produce mild electrical shock to the tester.But, when line-frequency induction voltage is higher, can seriously wound the tester, even cause tester's death.
In the prior art, also can adopt and wear insulating glove and carry out the mode of wiring to avoid the direct engaged test line of tester.But the insulating glove of high-voltage connection is generally all thicker, and it is very inconvenient that the tester puts on the insulating glove wiring, is easy to cause wiring not firm, the process and the measuring accuracy of influence test.
Therefore, how solving the safety problem of ultra-high-tension power transmission line parameter measurement, is the eager technical issues that need to address in this area.
The utility model content
Technical problem to be solved in the utility model provides a kind of ultra-high-tension power transmission line parameter measuring apparatus and system, can effectively strengthen the security of ultra-high-tension power transmission line parameter measurement.
For solving the problems of the technologies described above, the utility model provides a kind of ultra-high-tension power transmission line parameter measuring apparatus, and described measurement mechanism comprises safe Wiring module and testing apparatus; Wherein,
Described safe Wiring module comprises operation with high pressure bar and p-wire; Described operation with high pressure bar connects described p-wire, is used for an end of described p-wire is connected to described tested transmission line of electricity; The described testing apparatus of another termination of described p-wire.
Preferably, described operation with high pressure bar comprises insulating bar and high-altitude wiring pincers; Wherein, described high-altitude wiring pincers are arranged on the top of described insulating bar, link to each other with described p-wire.
Preferably, described operation with high pressure bar comprises the described insulating bar of a described insulating bar of joint or at least two joint butt joints.
Preferably, described safe Wiring module also comprises lightning arrester, the common port of described described p-wire of lightning arrester one termination and described testing apparatus, other end ground connection.
Preferably, described safe Wiring module also comprises isolating switch, the common port of described described p-wire of isolating switch one termination and described testing apparatus, other end ground connection.
Preferably, described safe Wiring module also comprises voltage table, and described voltage table is connected in parallel on the two ends of described lightning arrester.
Preferably, described safe Wiring module also comprises reometer and short circuiting switch; Wherein,
Described reometer series connection is between described isolating switch and ground, and described short circuiting switch is connected in parallel on described reometer two ends.
The utility model also provides a kind of ultra-high-tension power transmission line parameter measurement system, and described measuring system comprises the first safe Wiring module, the second safe Wiring module, testing apparatus and central control unit.
The described first safe Wiring module connects described tested transmission route survey end and described testing apparatus, and the described second safe Wiring module connects the abutting end of described tested transmission line of electricity;
Described central control unit links to each other with the second safe Wiring module with the described first safe Wiring module respectively, is used to control the described first safe Wiring module and the second safe Wiring module carries out parameter measurement to tested transmission line of electricity.
Preferably, the described first safe Wiring module comprises operation with high pressure bar and p-wire; Wherein,
Described operation with high pressure bar connects described p-wire, is used for an end of described p-wire is connected to the measuring junction of described tested transmission line of electricity; The described testing apparatus of another termination of described p-wire.
Preferably, described second Wiring module comprises operation with high pressure bar and p-wire; Wherein,
Described operation with high pressure bar connects described p-wire, is used for described p-wire is connected to the abutting end of described tested transmission line of electricity.
Preferably, described operation with high pressure bar comprises insulating bar and high-altitude wiring pincers; Wherein, described high-altitude wiring pincers are arranged on the top of described insulating bar, link to each other with described p-wire.
Preferably, described operation with high pressure bar comprises the described insulating bar of a described insulating bar of joint or at least two joint butt joints.
Compared with prior art, the utlity model has following advantage:
Adopt ultra-high-tension power transmission line parameter measuring apparatus described in the utility model, in test process, the tester only need hand the insulating end of described operation with high pressure bar, operates described operation with high pressure bar, will be connected on the tight clamping connection of p-wire of described high-altitude application bar terminals on described test transmission line of electricity.The other end with described p-wire is connected with described testing apparatus again, can realize being connected of described testing apparatus and tested transmission line of electricity, carries out transmission line parameter and measures.
Compared with prior art, when adopting measurement mechanism described in the utility model to carry out the transmission line parameter measurement, do not need the direct engaged test line of tester, can guarantee the tester and described tested transmission line of electricity between keep realizing that described tested transmission line of electricity is connected with the tight of described testing apparatus under the situation of enough insulating spaces.Therefore, adopt measurement mechanism described in the utility model can effectively strengthen the security of ultra-high-tension power transmission line parameter measurement, guarantee tester's personal safety.
Description of drawings
Fig. 1 is the ultra-high-tension power transmission line parameter measuring apparatus first embodiment structural drawing described in the utility model;
Fig. 2 is the ultra-high-tension power transmission line parameter measuring apparatus second embodiment structural drawing described in the utility model;
Fig. 3 is a ultra-high-tension power transmission line parameter measurement system structural drawing described in the utility model;
Fig. 4 carries out the process flow diagram that line parameter circuit value is measured for adopting the described ultra-high-tension power transmission line parameter measuring apparatus of the utility model embodiment.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Ultra-high-tension power transmission line parameter measuring apparatus described in the utility model, described measurement mechanism comprises safe Wiring module and testing apparatus; Wherein, described safe Wiring module comprises operation with high pressure bar and p-wire; Described operation with high pressure bar connects described p-wire, is used for an end of described p-wire is connected to described tested transmission line of electricity; The described testing apparatus of another termination of described p-wire.
Adopt ultra-high-tension power transmission line parameter measuring apparatus described in the utility model, in test process, the tester only need hand the insulating end of described operation with high pressure bar, operates described operation with high pressure bar, will be connected on the tight clamping connection of p-wire of described high-altitude application bar terminals on described test transmission line of electricity.The other end with described p-wire is connected with described testing apparatus again, can realize being connected of described testing apparatus and tested transmission line of electricity, carries out transmission line parameter and measures.
With reference to Fig. 1, be the ultra-high-tension power transmission line parameter measuring apparatus first embodiment structural drawing described in the utility model.
Described ultra-high-tension power transmission line parameter measuring apparatus comprises: safe Wiring module 1 and testing apparatus 2.Described safe Wiring module 1 is connected with described testing apparatus 2.
Described safe Wiring module 1 comprises operation with high pressure bar 10 and p-wire 11.
Described p-wire 11 is used to connect described tested transmission line of electricity 2 and described testing apparatus 3.The terminals of described operation with high pressure bar 10 are connected with described p-wire 11, are used for described p-wire 11 is connected to described tested transmission line of electricity 2.
Described operation with high pressure bar 10 is made up of insulating bar and high-altitude wiring pincers.Described high-altitude wiring pincers are arranged on the top of described insulating bar, are connected with described p-wire 11.
Described insulating bar can be a joint, also can be formed by at least two joint insulating bar butt joints.The length of described operation with high pressure bar 10 can be according to the electric pressure and the line levels free adjustment of described tested transmission line of electricity 2.
The tester only needs the insulating end of hand-held described operation with high pressure bar 10 in the wiring process, the p-wire 20 that can will be connected described operation with high pressure bar 10 terminals is connected on the described tested transmission line of electricity.Adopt described Wiring module 1, can keep under the situation of enough insulating spaces between tester and the described tested transmission line of electricity 2, the described tested transmission line of electricity 2 of safe and reliable realization is connected with described testing apparatus 3.
When adopting described ultra-high-tension power transmission line parameter measuring apparatus that tested transmission line of electricity 2 is carried out parameter measurement, in order to guarantee tester's personal safety, at first should determine the length that needs of described operation with high pressure bar 10 according to the electric pressure and the line levels of tested transmission line of electricity 2.With the butt joint of more piece insulating bar, being met needs the operation with high pressure of length bar 10.Described tester controls described high-altitude wiring pincers by the insulating bar of the described operation with high pressure bar 10 of pulling, and the p-wire 11 tight clamping connections that will link to each other with described high-altitude wiring pincers are on described test transmission line of electricity 2.The other end with described p-wire 11 is connected with described testing apparatus 3 again, begins described tested transmission line of electricity 2 is carried out parameter measurement.
Realize docking of described p-wire 11 and described tested transmission line of electricity 2 by described high-altitude wiring pincers, can obtain consistance and reliability with manual direct wiring.
Preferably, described safe Wiring module 1 further comprises lightning arrester 12.Described lightning arrester 12 1 ends link to each other the other end by ground terminal ground connection with the common port of described p-wire 10 and described testing apparatus 3.
Described lightning arrester 12 is used for preventing ultra-high-tension power transmission line parameter measurement process, occurs too high voltages suddenly on the described tested transmission line of electricity 2, and tester and described testing apparatus 3 are damaged.
The rated voltage of described lightning arrester 12 can be carried out corresponding adjusting according to the dielectric level of described testing apparatus 3.
Preferably, described safe Wiring module 1 further comprises isolating switch 13.One end of described isolating switch 13 links to each other with the common port of described p-wire 10 and described testing apparatus 3, and the other end is by ground terminal ground connection.
Described isolating switch 13 is used for cooperating described lightning arrester 12 at test wiring process and test process, guarantees tester's personal safety, and the protection testing apparatus is without prejudice.
When adopting described ultra-high-tension power transmission line parameter measuring apparatus that tested transmission line of electricity 2 is carried out parameter measurement, before being connected to described p-wire 11 on the described tested transmission line of electricity 2 by operation with high pressure bar 10, the closed described isolating switch 13 of elder generation.By close circuit breaker 13, insert ground wire, guarantee the safety of tester's wiring process.
Because the parameter that ultra-high-tension power transmission line need be measured is a lot, when different parameters is measured, need frequently carry out the operation of reconfiguration line.In the prior art, when carrying out the operation of reconfiguration line, in order to guarantee tester's personal safety, the general method that adopts the line side ground connection cutter hand hay cutter in deciliter transformer station.
When needs carried out the operation of reconfiguration line, the line side ground connection cutter hand hay cutter in the closed transformer station inserted ground wire, makes directly engaged test line of tester, carries out the operation of reconfiguration line.After the reconfiguration line finishes, separate described cutter hand hay cutter again.But deciliter ground connection cutter hand hay cutter action need is by the permission of power scheduling department.When dividing closing operation each time, all need through examining, after formal scheduling was ordered, the operating personnel of transformer station could carry out, and cause test process very loaded down with trivial details, and cause the test duration to prolong greatly.
Measurement mechanism described in the utility model is provided with isolating switch 13 between ground wire and p-wire 11.In test process, when needs carry out the operation of reconfiguration line, closed described isolating switch 13, by p-wire ground wire is linked to each other with described tested transmission line of electricity 2, making tested transmission line of electricity 2 is safe with respect to the tester, the tester can directly carry out the operation of reconfiguration line, does not worry taking place Danger Electric shock risk.When reconfiguration line end of operation, only need cut-off breaker 13, just can proceed test job.Adopt described measurement mechanism, can make test process safety, convenient, shortened the test duration greatly.
After wiring finishes, disconnect described isolating switch 13 again, described lightning arrester 12 is inserted measurement circuit, begin described tested transmission line of electricity 2 is carried out parameter measurement, guarantee the personal safety of described tester in test process by lightning arrester 12 simultaneously.
The specific implementation structural drawing of described ultra-high-tension power transmission line parameter measuring apparatus as shown in Figure 1.
At the three-phase line of ultra-high-tension power transmission line, described operation with high pressure bar 10 comprises the first operation with high pressure bar 101, the second operation with high pressure bar 102 and the 3rd operation with high pressure bar 103.Described p-wire 11 comprises first p-wire 111, second p-wire 112 and the 3rd p-wire 113.
Accordingly, described lightning arrester 12 comprises first lightning arrester 121, second lightning arrester 122 and the 3rd lightning arrester 123.Described isolating switch 13 comprises first isolating switch 131, second isolating switch 132 and the 3rd isolating switch 133.
Described first p-wire 111 of the high-altitude wiring cramp joint of the described first operation with high pressure bar 101.Another termination of described first p-wire 111 described first lightning arrester 121 1 ends and described first isolating switch 131.The other end of the other end of described first isolating switch 131 and described first lightning arrester 121 is by ground terminal ground connection.The A that described first p-wire 111 and the common port of described first control lever 101 are used to connect described tested transmission line of electricity 2 mutually.The A that described first p-wire 111 and the common port of described first lightning arrester 121 connect described testing apparatus 3 mutually.
Described second p-wire 112 of the high-altitude wiring cramp joint of the described second operation with high pressure bar 102.Another termination of described second p-wire 112 described second lightning arrester 122 1 ends and described second isolating switch 132.The other end of the other end of described second isolating switch 132 and described second lightning arrester 122 is by ground terminal ground connection.The B that described second p-wire 112 and the common port of described second control lever 102 are used to connect described tested transmission line of electricity 2 mutually.The B that described second p-wire 112 and the common port of described second lightning arrester 122 are used to connect described testing apparatus 3 mutually.
Described the 3rd p-wire 113 of the high-altitude wiring cramp joint of described the 3rd operation with high pressure bar 103.Another termination of described the 3rd p-wire 113 described the 3rd lightning arrester 123 1 ends and described the 3rd isolating switch 133.The other end of the other end of described the 3rd isolating switch 133 and described the 3rd lightning arrester 123 is by ground terminal ground connection.The C that described the 3rd p-wire 113 and the common port of described the 3rd control lever 103 are used to connect described tested transmission line of electricity 2 mutually.The C that described the 3rd p-wire 113 and the common port of described the 3rd lightning arrester 123 are used to connect described testing apparatus mutually.
When adopting the described measurement mechanism of the utility model first embodiment to carry out the transmission line parameter measurement, do not need the directly tested transmission line of electricity of contact of tester, can guarantee the tester and described tested transmission line of electricity between keep under the situation of enough insulating spaces, just can realize being connected of described tested transmission line of electricity and described testing apparatus reliably, and can realize that safety finishes the various reconfiguration lines operations in the line parameter circuit value test by the utility model.Therefore, adopt measurement mechanism described in the utility model can effectively strengthen the security of ultra-high-tension power transmission line parameter measurement, guarantee tester's personal safety.
At present, owing to increasing of transformer station, for the better utilization transmission line corridor, overhead transmission line and the parallel circuit of joint using two-circuit even three loops are also more and more.When carrying out the ultra-high-tension power transmission line parameter measurement, if adjacent lines can not have a power failure simultaneously, the line-frequency induction voltage of transmission line of electricity can produce very big influence to test.To disturbing comparatively serious scene, the electrostatic induction voltage of its transmission line of electricity can reach several ten thousand volts.At this moment, the tester connects instrument and carries out line parameter circuit value when measuring, and the induced voltage of its circuit may surpass 1000V, and induction current can be up to 20A, and tester's personal safety and testing apparatus safe in utilization caused great threat.
For fear of the danger that the line-frequency induction overtension of transmission line of electricity brings to test process, generally all adopt in test process, will have a power failure with the contiguous transmission line of electricity of described tested transmission line of electricity 2.But in the test process, described tester is difficult to accurately judge the critical number of, lines that need have a power failure simply by virtue of the personal experience.In order to guarantee personal security, can only will all stop power supply with all transmission lines of electricity of described tested transmission line of electricity 2 vicinities.Like this, though guaranteed tester's personal safety in the test process, but influenced normal power supply greatly.When test process need carry out for a long time, will cause greater loss and influence to supplier of electricity and electricity consumption Fang Jun.
The difference of ultra-high-tension power transmission line parameter measuring apparatus second embodiment described in the utility model and first embodiment is that described ultra-high-tension power transmission line parameter measuring apparatus further comprises voltage table and reometer.By in test process, measure the line-frequency induction voltage and the line-frequency induction electric current of described tested transmission line of electricity 2 in real time, determine the line-frequency induction voltage of described tested transmission line of electricity 2 and the condition whether the line-frequency induction electric current satisfies described tester's safe operation.As however satisfy, by progressively stopping the power supply with the contiguous part transmission line of electricity of described tested transmission line of electricity 2, make the line-frequency induction voltage and the line-frequency induction electric current of described tested transmission line of electricity 2 reduce to the safe operation scope, both guaranteed tester's personal safety, the adjacent lines quantity of stopping power supply can be reduced to minimumly again, make and reduce to minimum the loss and the influence of supplier of electricity and electricity consumption side.
With reference to Fig. 2, be the ultra-high-tension power transmission line parameter measuring apparatus second embodiment structural drawing described in the utility model.
Described ultra-high-tension power transmission line parameter measuring apparatus comprises: safe Wiring module 1 and testing apparatus 2.
Described safe Wiring module 1 comprises operation with high pressure bar 10, p-wire 11, lightning arrester 12, isolating switch 13, also comprises voltage table 14, reometer 15 and short circuiting switch 16.
Described p-wire 11 is used to connect described tested transmission line of electricity 2 and described testing apparatus 3.Described operation with high pressure bar 10 is connected with described p-wire 11, is used for described p-wire 11 is connected to described tested transmission line of electricity 2.
The described p-wire 11 of the high-altitude wiring cramp joint of described operation with high pressure bar 10.Described lightning arrester 12 1 ends of another termination of described p-wire 11 and described isolating switch 13.The positive terminal of the described reometer 15 of another termination of described isolating switch 13, the other end of the negative pole end of described reometer 15 and described lightning arrester 12 is by ground terminal ground connection.Described voltage table 14 is connected in parallel on described lightning arrester 12 two ends.Described short circuiting switch 16 is connected in parallel on the two ends of described reometer 15.
Described voltage table 14; be used for before the test beginning; measure the line-frequency induction voltage of described tested transmission line of electricity 2, the line-frequency induction voltage of described tested transmission line of electricity 2 is reached within the safe range, be without prejudice with personal safety and the protection testing apparatus 3 that guarantees tester in the test process.
The general requirement before the test beginning, the line-frequency induction voltage of described tested transmission line of electricity 2 should be greater than 1000V.
When the line-frequency induction voltage of described tested transmission line of electricity 2 surpassed 1000V, common testing apparatus 3 can't be born, and is easy to be compromised, and simultaneously, also is easy to the tester is caused personal injury.At this moment, should reduce the line-frequency induction voltage of described tested transmission line of electricity 2 by suitably stopping the power supply with the contiguous transmission line of electricity of described tested transmission line of electricity 2.If above-mentioned measure still can not make described line-frequency induction voltage reduce to below the 1000V, will stop to carry out transmission line parameter and measure, to guarantee the safety of tester and testing apparatus 3.
Described reometer 15; be used for before the test beginning; measure the line-frequency induction electric current of described tested transmission line of electricity 2, the line-frequency induction electric current of described tested transmission line of electricity 2 is reached within the safe range, be without prejudice with personal safety and the protection testing apparatus 3 that guarantees tester in the test process.
The general requirement before the test beginning, the line-frequency induction electric current of described tested transmission line of electricity 2 should be greater than 20A.
When the line-frequency induction electric current of described tested transmission line of electricity 2 surpassed 20A, common testing apparatus 3 can't be born, and is easy to be compromised, and simultaneously, also is easy to the tester is caused personal injury.At this moment, should reduce the line-frequency induction electric current of described tested transmission line of electricity 2 by suitably stopping the power supply with the contiguous transmission line of electricity of described tested transmission line of electricity 2.If above-mentioned measure still can not make described line-frequency induction electric current reduce to below the 20A, will stop to carry out transmission line parameter and measure, to guarantee the safety of tester and testing apparatus 3.
Described short circuiting switch 16 is connected in parallel on described reometer 15 two ends, is used for protective current table 15.When described reometer 15 was in not user mode, described short circuiting switch 16 closures made described reometer 15 shorted on both ends, obstructed excess current in the described reometer 15.
The specific implementation structural drawing of described ultra-high-tension power transmission line parameter measuring apparatus as shown in Figure 2.
At the three-phase line of ultra-high-tension power transmission line, described operation with high pressure bar 10 comprises the first operation with high pressure bar 101, the second operation with high pressure bar 102 and the 3rd operation with high pressure bar 103.Described p-wire 11 comprises first p-wire 111, second p-wire 112 and the 3rd p-wire 113.
Accordingly, described lightning arrester 12 comprises first lightning arrester 121, second lightning arrester 122 and the 3rd lightning arrester 123.Described isolating switch 13 comprises first isolating switch 131, second isolating switch 132 and the 3rd isolating switch 133.Described voltage table 14 comprises that first voltage table 141, second voltage table 142 and tertiary voltage table 143, described reometer 15 comprise first reometer 151, second reometer 152 and the 3rd reometer 153.Described short circuiting switch 16 comprises first short circuiting switch 161, second short circuiting switch 162 and the 3rd short circuiting switch 163.
Described first p-wire 111 of the high-altitude wiring cramp joint of the described first operation with high pressure bar 101.Another termination of described first p-wire 111 described first lightning arrester 121 1 ends and described first isolating switch 131.The positive terminal of described first reometer 151 of another termination of described first isolating switch 131.The other end of the negative pole end of described first reometer 151 and described first lightning arrester 121 is by ground terminal ground connection.Described first voltage table 141 is connected in parallel on the two ends of described first lightning arrester 121.Described first short circuiting switch 161 is connected in parallel on the two ends of described first reometer 151.The A that described first p-wire 111 and the common port of described first control lever 101 are used to connect described tested transmission line of electricity 2 mutually.The A that described first p-wire 111 and the common port of described first lightning arrester 121 are used to connect described testing apparatus 3 mutually.
Described second p-wire 112 of the high-altitude wiring cramp joint of the described second operation with high pressure bar 102.Another termination of described second p-wire 112 described second lightning arrester 122 1 ends and described second isolating switch 132.The positive terminal of described second reometer 152 of another termination of described second isolating switch 132.The other end of the negative pole end of described second reometer 152 and described second lightning arrester 122 is by ground terminal ground connection.Described second voltage table 142 is connected in parallel on the two ends of described second lightning arrester 122.Described second short circuiting switch 162 is connected in parallel on the two ends of described second reometer 152.The B that described second p-wire 112 and the common port of described second control lever 102 are used to connect described tested transmission line of electricity 2 mutually.The B that described second p-wire 112 and the common port of described second lightning arrester 122 are used to connect described testing apparatus 3 mutually.
Described the 3rd p-wire 113 of the high-altitude wiring cramp joint of described the 3rd operation with high pressure bar 103.One end of described the 3rd lightning arrester 123 of another termination of described the 3rd p-wire 113 and described the 3rd isolating switch 133.The positive terminal of described the 3rd reometer 153 of another termination of described the 3rd isolating switch 133.The other end of the negative pole end of described the 3rd reometer 153 and described the 3rd lightning arrester 123 is by ground terminal ground connection.Described tertiary voltage table 143 is connected in parallel on the two ends of described the 3rd lightning arrester 123.Described the 3rd short circuiting switch 163 is connected in parallel on the two ends of described the 3rd reometer 153.The C that described the 3rd p-wire 113 and the common port of described the 3rd control lever 103 are used to connect described tested transmission line of electricity 2 mutually.The C that described the 3rd p-wire 113 and the common port of described the 3rd lightning arrester 123 are used to connect described testing apparatus mutually.
The utility model also provides a kind of ultra-high-tension power transmission line parameter measurement system.Referring to Fig. 3, be ultra-high-tension power transmission line parameter measurement system structural drawing described in the utility model.
Described ultra-high-tension power transmission line parameter measurement system comprises: the first safe Wiring module 1a, the second safe Wiring module 2a, testing apparatus 3 and central control unit 4.
The described first safe Wiring module 1a connects the measuring junction and the described testing apparatus 3 of described tested transmission line of electricity 2, and the described second safe Wiring module 1b connects the abutting end of described tested transmission line of electricity 2;
Described central control unit 4 links to each other with the second safe Wiring module 1b with the described first safe Wiring module 1a respectively, is used to control the described first Wiring module 1a and the second Wiring module 1b tested transmission line of electricity 2 is carried out parameter measurement.
The described first safe Wiring module 1a and the second safe Wiring module 1b can be any one safe Wiring module noted earlier.
Referring to Fig. 4, carry out the process flow diagram that line parameter circuit value is measured for adopting the described ultra-high-tension power transmission line parameter measuring apparatus of the utility model embodiment.
When ultra-high-tension power transmission line was carried out parameter measurement, described tested transmission line of electricity two ends can be respectively defined as measuring junction and abutting end.
Measuring junction at described tested transmission line of electricity is provided with first safe Wiring module and the testing apparatus, by described first security module described testing apparatus is linked to each other with described tested transmission line of electricity.
Abutting end at described tested transmission line of electricity is provided with the second safe Wiring module, is used for the first safe Wiring module of conjunction measuring end, carries out parameter measurement.
The concrete operations step of described test process is as described below:
Step 401: before ultra-high-tension power transmission line is tested, described first safe Wiring module and the testing apparatus is set, the described second safe Wiring module is set at the abutting end of tested transmission line of electricity at the measuring junction of tested transmission line of electricity.
Step 402: with the equal ground connection of ground terminal of the described first safe Wiring module and the second safe Wiring module, the short circuiting switch and the isolating switch of the safe Wiring module of closed respectively two covers.
Closed described short circuiting switch is for the protective current table, shorted on both ends when described reometer is not worked, obstructed excess current in the reometer.
Closed described isolating switch is introduced ground wire by ground terminal, tester's personal safety in the protection wiring process.
Step 403: the safe Wiring module that will be arranged on described tested transmission route survey end and abutting end is connected with described tested transmission line of electricity respectively.
Use the operation with high pressure bar of described safe Wiring module, will be connected on the tight clamping connection of p-wire on the described operation with high pressure bar on described tested transmission line of electricity, realize being connected of described safe Wiring module and described tested transmission line of electricity.
Step 404: confirming that described tested transmission route survey end all is connected with abutting end finishes.
Step 405: disconnect the isolating switch of the safe Wiring module of measuring junction, measure the line-frequency induction voltage of tested transmission line of electricity.
Step 406: judge the requirement that whether is above standard of the described line-frequency induction voltage measure, if, enter step 407, if not, enter step 408.
Step 407: carry out corresponding power scheduling operation, return step 406.
When described line-frequency induction voltage is above standard when requiring, carry out the power scheduling operation, suitably stop the power supply with the contiguous transmission line of electricity of described tested transmission line of electricity, reduce the line-frequency induction voltage of described tested transmission line of electricity.Returning step 406, judging whether the line-frequency induction voltage after the scheduling meets the demands.
The standard-required of general described line-frequency induction voltage is 1000V.
Step 408: the isolating switch of the safe Wiring module of closed measuring junction, disconnect the shorting switch of the safe Wiring module of measuring junction, measure the line-frequency induction electric current of tested transmission line of electricity.
Step 409: judge the requirement that whether is above standard of the described line-frequency induction electric current measure, if, carry out corresponding power scheduling operation, enter step 410, if not, enter step 411.
Step 410: carry out corresponding power scheduling operation, return step 409, judge whether the line-frequency induction electric current after the scheduling meets the demands.
When described line-frequency induction electric current is above standard when requiring, carry out the power scheduling operation, suitably stop the power supply with the contiguous transmission line of electricity of described tested transmission line of electricity, reduce the line-frequency induction electric current of described tested transmission line of electricity.
The standard-required of general described line-frequency induction electric current is 20A.
Step 411: the shorting switch of the safe Wiring module of closed measuring junction, protective current table.
Step 412: described testing apparatus is linked to each other with the safe Wiring module of measuring junction, carry out corresponding test operation.
Generally parameter measurement comprises described tested transmission line of electricity abutting end three-phase short circuit test, tested transmission line of electricity abutting end three-phase short circuit and earthing test, tested transmission line of electricity abutting end three-phase open test etc. to ultra-high-tension power transmission line.
When carrying out described tested transmission line of electricity abutting end three-phase short circuit test, disconnect the isolating switch of measuring junction.At abutting end, the three-phase line of described abutting end is carried out short circuit respectively by the second safe Wiring module.At measuring junction, by the first safe Wiring module, described testing apparatus is connected with described measuring junction three-phase line, test the positive sequence impedance of described tested transmission line of electricity etc.After measurement finishes, the isolating switch of closed described measuring junction, to guarantee tester's personal safety, the protection testing apparatus is without prejudice.
When carrying out described tested transmission line of electricity abutting end three-phase short circuit and earthing test, disconnect the isolating switch of measuring junction.At abutting end, the three-phase line of described abutting end is carried out short circuit and ground connection respectively by the second safe Wiring module.At measuring junction, by the first safe Wiring module, described testing apparatus is connected with described measuring junction three-phase line, test the zero sequence impedance of described tested transmission line of electricity etc.After measurement finishes, the isolating switch of closed described measuring junction, to guarantee tester's personal safety, the protection testing apparatus is without prejudice.
When carrying out described tested transmission line of electricity abutting end three-phase open test, disconnect the isolating switch of measuring junction.The three-phase of described tested transmission line of electricity abutting end is all opened a way.At measuring junction, by the first safe Wiring module, described testing apparatus is connected with described measuring junction three-phase line, test positive sequence impedance, zero sequence electric capacity of described tested transmission line of electricity etc.After measurement finishes, the isolating switch of closed described measuring junction, to guarantee tester's personal safety, the protection testing apparatus is without prejudice.
Step 413: after test finishes, disconnect being connected of tested transmission route survey end and abutting end and the described first safe Wiring module and the second safe Wiring module respectively.
More than to a kind of ultra-high-tension power transmission line parameter measuring apparatus provided by the utility model and system, be described in detail, used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (12)
1, a kind of ultra-high-tension power transmission line parameter measuring apparatus is characterized in that, described device comprises safe Wiring module and testing apparatus; Wherein,
Described safe Wiring module comprises operation with high pressure bar and p-wire; Described operation with high pressure bar connects described p-wire, is used for an end of described p-wire is connected to described tested transmission line of electricity; The described testing apparatus of another termination of described p-wire.
According to the described device of claim 1, it is characterized in that 2, described operation with high pressure bar comprises insulating bar and high-altitude wiring pincers; Wherein, described high-altitude wiring pincers are arranged on the top of described insulating bar, link to each other with described p-wire.
According to the described device of claim 2, it is characterized in that 3, described operation with high pressure bar comprises the described insulating bar of a described insulating bar of joint or at least two joint butt joints.
According to the described device of claim 3, it is characterized in that 4, described safe Wiring module also comprises lightning arrester, the common port of described described p-wire of lightning arrester one termination and described testing apparatus, other end ground connection.
According to the described device of claim 3, it is characterized in that 5, described safe Wiring module also comprises isolating switch, the common port of described described p-wire of isolating switch one termination and described testing apparatus, other end ground connection.
According to claim 4 or 5 described measurement mechanisms, it is characterized in that 6, described safe Wiring module also comprises voltage table, described voltage table is connected in parallel on the two ends of described lightning arrester.
According to the described device of claim 6, it is characterized in that 7, described safe Wiring module also comprises reometer and short circuiting switch; Wherein,
Described reometer series connection is between described isolating switch and ground, and described short circuiting switch is connected in parallel on described reometer two ends.
8, a kind of ultra-high-tension power transmission line parameter measurement system is characterized in that, described system comprises the first safe Wiring module, the second safe Wiring module, testing apparatus and central control unit.
The described first safe Wiring module connects described tested transmission route survey end and described testing apparatus, and the described second safe Wiring module connects the abutting end of described tested transmission line of electricity;
Described central control unit links to each other with the second safe Wiring module with the described first safe Wiring module respectively, is used to control the described first safe Wiring module and the second safe Wiring module carries out parameter measurement to tested transmission line of electricity.
9, described according to Claim 8 system is characterized in that, the described first safe Wiring module comprises operation with high pressure bar and p-wire; Wherein,
Described operation with high pressure bar connects described p-wire, is used for an end of described p-wire is connected to the measuring junction of described tested transmission line of electricity; The described testing apparatus of another termination of described p-wire.
10, described according to Claim 8 system is characterized in that, described second Wiring module comprises operation with high pressure bar and p-wire; Wherein,
Described operation with high pressure bar connects described p-wire, is used for described p-wire is connected to the abutting end of described tested transmission line of electricity.
According to claim 9 or 10 described systems, it is characterized in that 11, described operation with high pressure bar comprises insulating bar and high-altitude wiring pincers; Wherein, described high-altitude wiring pincers are arranged on the top of described insulating bar, link to each other with described p-wire.
According to the described system of claim 11, it is characterized in that 12, described operation with high pressure bar comprises the described insulating bar of a described insulating bar of joint or at least two joint butt joints.
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| CNU200820183515XU CN201327509Y (en) | 2008-12-19 | 2008-12-19 | High-voltage transmission line parameter measuring device and system thereof |
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| CNU200820183515XU CN201327509Y (en) | 2008-12-19 | 2008-12-19 | High-voltage transmission line parameter measuring device and system thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403779B (en) * | 2008-11-12 | 2012-07-04 | 河南电力试验研究院 | Parameter measuring apparatus and system for high tension power line |
| 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 |
| CN103344837A (en) * | 2013-07-11 | 2013-10-09 | 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 | Method for measuring parameters of two-circuit direct current transmission line with double circuits on same tower |
| CN103616544A (en) * | 2013-11-23 | 2014-03-05 | 国家电网公司 | Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension 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 |
| CN104833828A (en) * | 2015-05-14 | 2015-08-12 | 明晓军 | Transformer test station one-time wiring apparatus |
| CN105116224A (en) * | 2015-07-04 | 2015-12-02 | 国网山东省电力公司东营供电公司 | Novel auxiliary line parameter testing tool and method |
| CN110456158A (en) * | 2019-09-16 | 2019-11-15 | 国网河南省电力公司平顶山供电公司 | A kind of method for preventing induced electricity from hurting sb.'s feelings when measurement circuit power frequency parameter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101403779B (en) * | 2008-11-12 | 2012-07-04 | 河南电力试验研究院 | Parameter measuring apparatus and system for high tension power line |
| 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 |
| CN102590627B (en) * | 2012-04-01 | 2013-10-23 | 甘肃省电力公司电力科学研究院 | Test instrument for high-voltage power transmission line |
| CN103344837A (en) * | 2013-07-11 | 2013-10-09 | 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 | Method for measuring parameters of two-circuit direct current transmission line with double circuits on same tower |
| CN103344837B (en) * | 2013-07-11 | 2015-04-15 | 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 | Method for measuring parameters of two-circuit direct current transmission line with double circuits on same tower |
| CN103616544A (en) * | 2013-11-23 | 2014-03-05 | 国家电网公司 | Intelligent control device for measurement of positive-sequence parameter and zero-sequence parameter of high-tension 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 |
| CN104833828A (en) * | 2015-05-14 | 2015-08-12 | 明晓军 | Transformer test station one-time wiring apparatus |
| CN105116224A (en) * | 2015-07-04 | 2015-12-02 | 国网山东省电力公司东营供电公司 | Novel auxiliary line parameter testing tool and method |
| CN110456158A (en) * | 2019-09-16 | 2019-11-15 | 国网河南省电力公司平顶山供电公司 | A kind of method for preventing induced electricity from hurting sb.'s feelings when measurement circuit power frequency parameter |
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