CN103616537B - A kind of method of lightning protection back brake device and measurement ground capacitance and line electricity sensibility reciprocal - Google Patents
A kind of method of lightning protection back brake device and measurement ground capacitance and line electricity sensibility reciprocal Download PDFInfo
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- CN103616537B CN103616537B CN201310516160.7A CN201310516160A CN103616537B CN 103616537 B CN103616537 B CN 103616537B CN 201310516160 A CN201310516160 A CN 201310516160A CN 103616537 B CN103616537 B CN 103616537B
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Abstract
The invention discloses a kind of lightning protection back brake device, it comprises test lead circuit and State Transferring end line, described test lead circuit and State Transferring end line are connected to the two ends of test transmission line of electricity, wherein: described test lead circuit comprises the first current line, the first pressure-wire, the first ground wire, discharging gap, double-point double-throw switch and the first calibrating terminal and the second calibrating terminal; Described State Transferring end line comprises the second current line, the second ground wire, single-pole double-throw switch (SPDT) and short circuit State Transferring connection terminal.Meanwhile, the invention also discloses this lightning protection back brake device of employing and carry out the ground capacitance of transmission line of electricity and the method for line inductance measurement amount.The present invention carries out grid switching operation by the dpdt double-pole double-throw (DPDT) disconnecting link in test lead circuit and State Transferring end line two ends and single-pole double-throw (SPDT) disconnecting link can make circuit be in ground connection, short circuit and the various state such as unsettled, and all the conversion of state all obtains whole process protection by ground connection or protective gap.
Description
Technical field
The present invention relates to power system transformer substation grid switching operation technical field, be specifically related to a kind of can at single, double time of direct current and the switch back brake device exchanging lightning protection and the conversion line mode of connection used in single, double back transmission line parameter testing process, the function that there is lightning protection and transmission line of electricity is changed between ground connection, short circuit and the various states such as unsettled, and adopt this switch back brake device transmission line of electricity to be carried out to the method for ground capacitance and line inductance measurement amount.
Background technology
At present, domestic in transmission line parameter test process to the conversion of ground connection, short circuit and the several functions such as unsettled and realize all being realized by the artificial mode of connection that changes on ground or portal frame, cause in line parameter circuit value survey crew injures and deaths and device damage at strick precaution thunderbolt circuit and there is no effective risk control measure.Due to the lightning protection device that neither one in operation and test process is set up, in operation, need to wear insulating glove, troublesome poeration and wasting time and energy, the more important thing is and cannot ensure that operating personnel exempt from the impact of long distance line thunderbolt.The problem that execute-in-place environment is poor, line status is chaotic, thunderbolt impacts the harm person and device security is often there is in circuit parametric procedure.
Summary of the invention
In order to overcome existing in circuit parameter testing process during frequent transition status equipment can not be guaranteed with the safety of the person and operate the shortcoming wasted time and energy, an object of the present invention there are provided a kind of line parameter circuit value and tests lightning protection back brake device.This device to have the function of circuit conversion mutually between ground connection, short circuit and the test mode such as unsettled under the protection of ground connection or band lightning protection inter space, can greatly improve line parameter circuit value test job efficiency and ensure the safety of the person and equipment.
For realizing above object, the technical scheme that this invention takes is:
A kind of lightning protection back brake device, it comprises test lead circuit and State Transferring end line, and described test lead circuit and State Transferring end line are connected to the two ends of test transmission line of electricity, wherein:
Described test lead circuit comprises the first current line, first pressure-wire, first ground wire, discharging gap, double-point double-throw switch and the first calibrating terminal and the second calibrating terminal, wherein, double-point double-throw switch comprises the first fixed terminal, second fixed terminal, 3rd fixed terminal, 4th fixed terminal, and first armature contact and the second armature contact, wherein one end of the first current line is connected with the first armature contact, one end of first pressure-wire is connected with the second armature contact, first fixed terminal is all connected with the first ground wire with the second fixed terminal, 3rd fixed terminal and the 4th fixed terminal are electrically connected with the first calibrating terminal and the second calibrating terminal respectively, the other end of the first current line and the first pressure-wire is respectively equipped with the first current line connection terminal and the first pressure-wire connection terminal, described discharging gap comprises the first discharging rod and there is second discharging rod in gap with the first discharging rod, wherein, first discharging rod and the first current line connection terminal are electrically connected, second discharging rod and the first ground wire are electrically connected, described first current line connection terminal and the first pressure-wire connection terminal are electrically connected with one end of transmission line of electricity respectively,
Described State Transferring end line comprises the second current line, second ground wire, single-pole double-throw switch (SPDT) and short circuit State Transferring connection terminal, wherein, described single-pole double-throw switch (SPDT) comprises the 5th fixed terminal, 6th fixed terminal and one the 3rd armature contact, 5th fixed terminal and the 6th fixed terminal are electrically connected with the second ground wire and short circuit State Transferring connection terminal respectively, one end and the 3rd armature contact of described second current line are electrically connected, its other end is provided with one second current line connection terminal, the other end of described second current line connection terminal and transmission line of electricity is electrically connected.
Described transmission line of electricity is at least two, the quantity of described State Transferring end line and test lead circuit is all equal with the quantity of transmission line of electricity, described State Transferring end line and test lead circuit one_to_one corresponding are electrically connected at the two ends of transmission line of electricity, and all test lead circuits are positioned at the same side of transmission line of electricity.
Described test lead circuit is to be installed on respectively on the first installing plate and the second installing plate with State Transferring end line.
Described first installing plate comprises the first upper mounting plate and the first lower installation board, described first upper mounting plate and the first lower installation board are fixed by screw and be there is gap therebetween, test lead circuit is installed on the first upper mounting plate, described first installing plate comprises the second upper mounting plate and the second lower installation board, described second upper mounting plate and the second lower installation board are fixed by screw and be there is gap therebetween, and State Transferring end line is installed on the second upper mounting plate.
First installing plate and the second installing plate are epoxy plate.
Described discharging gap comprises the first sheet metal and the second sheet metal that are parallel to each other further, described first discharging rod and the second discharging rod are installed on the first sheet metal and the second sheet metal respectively, and the axis of the first discharging rod and the second discharging rod on the same line.
The correspondence position of described first sheet metal and the second sheet metal is respectively equipped with the first perforation and the second perforation, described first discharging rod and the second discharging rod are through in the first perforation and the second perforation respectively, and the first perforation and biperforate both sides are equipped with the nut be threaded with the first discharging rod and the second discharging rod respectively.
Test lead circuit and State Transferring end line is installed respectively at the two ends of transmission line of electricity to be measured; test lead circuit is; the dpdt double-pole double-throw (DPDT) disconnecting link of the quantity such as installation and transmission line of electricity on insulcrete; be connected with circuit and protective gap one end and be connected surveying instrument in the middle of disconnecting link; disconnecting link top connects the other end of protective gap and ground connection; following link short circuit State Transferring terminal, wherein portable protective gaps is made up of with parallel iron plate discharging rod, and clearance distance is adjustable.State Transferring end line is, the single-pole double-throw (SPDT) disconnecting link of the quantity such as installation and circuit on insulcrete, disconnecting link intermediate connection road, two ends are short circuit ground connection and line short circuit State Transferring end respectively.When operation transformation state, operating personnel only need operate disconnecting link with insulating bar, and away from circuit, in operating process, the person and instrument are all subject to the protection of portable protective gaps, and simple to operate, state is very clear, avoid unsafe factor such as field wiring numerous and diverse grade.
Another object of the present invention is the application providing this lightning protection back brake device a kind of, and carried out ground capacitance measurement, for realizing this object, the technical scheme that this invention takes is:
Adopt preceding claim lightning protection back brake device to carry out the measuring method of ground capacitance, it comprises the following steps:
A, test lead circuit and State Transferring end line are connected respectively the two ends in transmission line of electricity;
B, stir the first armature contact and the second armature contact and make the two be electrically connected with the first fixed terminal and the second fixed terminal respectively
C, stir the 3rd armature contact and make it unsettled;
D, stir the first armature contact and the second armature contact and make the two be electrically connected with the 3rd fixed terminal and the 4th fixed terminal respectively;
E, the first calibrating terminal are all connected to the current measurement terminal of a surveying instrument, and the second calibrating terminal is all connected to the voltage measurement terminal of this surveying instrument;
F, open surveying instrument and measure.
Described surveying instrument can be adopted as YTLP type transmission line power frequency parameter test system
Another object of the present invention is that the another kind providing this lightning protection back brake device a kind of is applied, and carried out the measurement of line electricity sensibility reciprocal, for realizing this object, the technical scheme that this invention takes is:
Adopt preceding claim lightning protection back brake device to carry out the measuring method of line electricity sensibility reciprocal, it comprises the following steps:
A, test lead circuit and State Transferring end line are connected respectively the two ends in transmission line of electricity;
B, stir the first armature contact and the second armature contact and make the two be electrically connected with the first fixed terminal and the second fixed terminal respectively;
C, stir the 3rd armature contact itself and the second ground wire are electrically connected;
D, stirring the first armature contact and the second armature contact, making the two position transfer to being electrically connected with the 3rd fixed terminal and the 4th fixed terminal respectively;
E, the first calibrating terminal are all connected to the current measurement terminal of a surveying instrument, and the second calibrating terminal is all connected to the voltage measurement terminal of this surveying instrument;
F, open surveying instrument and measure.
Compared with prior art, the invention has the advantages that:
1, can safely and conveniently conversion testing state in the parameter testing process of transmission line of electricity; carrying out grid switching operation by the disconnecting link (being dpdt double-pole double-throw (DPDT) disconnecting link and single-pole double-throw (SPDT) disconnecting link respectively) in test lead circuit and State Transferring end line two ends can make circuit be in ground connection, short circuit and the various state such as unsettled, and all the conversion of state all obtains whole process protection by ground connection or protective gap.
2, in test lead circuit, use double-point double-throw switch to make pressure-wire and current line separately, the impact that circuit downlead is measured line parameter circuit value can be eliminated.
3, structure simple state of the present invention is very clear, can greatly improve on-the-spot test environment, and the person and equipment are protected effectively, and test process is also no longer wasted time and energy.
Accompanying drawing explanation
The circuit theory diagrams of test lead circuit in a kind of lightning protection back brake of Fig. 1 the present invention device;
Fig. 2 is the circuit theory diagrams of State Transferring end line in a kind of lightning protection back brake of the present invention device;
Fig. 3 is the schematic diagram of complete test lead circuit;
Fig. 4 is the schematic diagram of complete State Transferring end line;
Fig. 5 is the structural representation of discharging gap;
Fig. 6 is the structural representation of epoxy plate;
Fig. 7 is the circuit theory diagrams that the ground capacitance of single transmission line of electricity is measured;
Fig. 8 is the circuit theory diagrams that the ground capacitance of two transmission lines of electricity is measured;
Fig. 9 is the circuit theory diagrams of the line inductance measurement amount of single transmission line of electricity;
Figure 10 is the circuit theory diagrams that the ground capacitance of two transmission lines of electricity is measured.
Wherein: 1, test lead circuit; 11, current line; 111, current line connection terminal; 12, pressure-wire; 121, pressure-wire connection terminal; 13, discharging gap; 131, discharging rod; 132, discharging rod; 133, sheet metal; 134, sheet metal; 14, double-point double-throw switch; 141, fixed terminal; 142, fixed terminal; 143, fixed terminal; 144, fixed terminal; 145, armature contact; 146, armature contact; 147, insulating bar; 15, calibrating terminal; 16, calibrating terminal; 17, ground wire; 2, State Transferring end line; 21, current line; 211, current line connection terminal; 22, single-pole double-throw switch (SPDT); 221, fixed terminal; 222, fixed terminal; 223, armature contact; 224, insulating bar; 23, short circuit State Transferring connection terminal; 24, ground wire; 3, transmission line of electricity; 4, epoxy plate; 41, upper mounting plate; 42, lower installation board; 5, surveying instrument; 6, fixed head.
Embodiment
Below in conjunction with the drawings and specific embodiments, content of the present invention is described in further details.
Embodiment:
A kind of lightning protection back brake device, it comprises test lead circuit 1 and State Transferring end line 2, wherein:
The circuit theory diagrams of test lead circuit 1 please refer to shown in Fig. 1, it comprises current line 11, pressure-wire 12, ground wire 17, discharging gap 13, double-point double-throw switch 14 and calibrating terminal 15 and calibrating terminal 16, wherein, double-point double-throw switch 14 comprises fixed terminal 141, fixed terminal 142, fixed terminal 143, fixed terminal 144 and armature contact 145 and armature contact 146, armature contact 145 and armature contact 146 are fixed by an insulating bar 147, make the two action simultaneously.Wherein one end of current line 11 is connected with armature contact 145, one end of pressure-wire 12 is connected with armature contact 146, fixed terminal 141 is all connected with ground wire 17 with fixed terminal 142, fixed terminal 143 and fixed terminal 144 are electrically connected with calibrating terminal 15 and calibrating terminal 16 respectively, and the other end of current line 11 and pressure-wire 12 is respectively equipped with current line connection terminal 111 and pressure-wire connection terminal 121.Discharging gap 13 comprises discharging rod 131 and there is the discharging rod 132 in gap with discharging rod 131, and rely on the gap formed to discharge therebetween, discharging rod 131 and current line connection terminal 111 are electrically connected, and discharging rod 132 and ground wire 17 are electrically connected.
As seen from Figure 1, namely the armature contact 145 of double-point double-throw switch 14 is connected with discharging rod 132 and ground connection above getting to armature contact 146, even if armature contact 145 and armature contact 146 that is to say transmission line of electricity 3 unsettled (and having portable protective gaps between ground) at middle pressure-wire 12 and current line 11; And armature contact 145 and armature contact 146 are when getting to below, are namely connected to calibrating terminal 15 and calibrating terminal 16 and connect testing tool also the changes circuit mode of connection (two-phase short circuit, three-phase short circuit etc.) by terminal lead.Pressure-wire 12 is not connected with discharging gap 13, all the other wiring and use identical with current line.
The circuit theory diagrams of State Transferring end line 2 please refer to shown in Fig. 2, it comprises current line 21, ground wire 24, single-pole double-throw switch (SPDT) 22 and short circuit State Transferring connection terminal 23, wherein, single-pole double-throw switch (SPDT) 22 comprises fixed terminal 221, fixed terminal 222 and armature contact 223, armature contact 223 connects an insulating bar 224, fixed terminal 221, fixed terminal 222 are electrically connected with ground wire 24 and short circuit State Transferring connection terminal 23 respectively, one end and the armature contact 223 of described current line 21 are electrically connected, and its other end is provided with current line connection terminal 211.
As seen from Figure 2, State Transferring end line 2 only does State Transferring use, does not establish portable protective gaps also without the need to testing wiring, therefore adopts single-pole double-throw switch (SPDT) 22.Current line 21 and armature contact 223 are electrically connected, even if State Transferring end line 2 is in ground state above armature contact 223 is got to, even if armature contact 223 is in vacant state at middle circuit, namely armature contact 223 changes the mode of connection (two-phase short circuit, three-phase short circuit etc.) of circuit by short circuit State Transferring connection terminal 23 below getting to.
Please refer to shown in Fig. 7 or Fig. 9, test lead circuit 1 and State Transferring end line 2 are connected to the two ends of transmission line of electricity 3 to be tested, specifically: current line connection terminal 111 and pressure-wire connection terminal 121 are electrically connected with one end of transmission line of electricity 3 respectively, current line connection terminal 211 is electrically connected with the other end of transmission line of electricity 3.
Please refer to shown in Fig. 3 and Fig. 4, test lead circuit 1 and State Transferring end line 2 all adopt six, equal shared grounding line between test lead circuit and between State Transferring end line, this unitized construction can complete direct current single, double time and exchange the circuit back brake handoff functionality in single, double loop line road parameter testing process.
Please refer to shown in Fig. 5, discharging gap 13 also comprises and being fixedly installed on fixed head 6 and the sheet metal 133 be parallel to each other and sheet metal 134, discharging rod 131 and discharging rod 132 are installed on sheet metal 133 and sheet metal 134 respectively, during installation, ensure the axis of discharging rod 131 and discharging rod 132 on the same line.Specifically on sheet metal 133 and sheet metal 134, be equipped with perforation; discharging rod 131 and discharging rod 132 correspondence are installed in corresponding perforation; and be socketed two nuts at the discharging rod 131 of both sides of perforation and discharging rod 132; nut is threaded with corresponding discharging rod 131 and discharging rod 132 and two discharging rods is fixed; simultaneously; the distance in discharging gap (gap namely between discharging rod 131 and discharging rod 132) can be regulated by setting nut according to protection intensity; in addition, nut plays the effect of the fixing lead-in wire be connected with discharging rod 131 and discharging rod 132.
Please refer to shown in Fig. 6, test lead circuit 1 and State Transferring end line 2 all may correspond to and are installed on corresponding epoxy plate 4, epoxy plate 4 is made up of upper mounting plate 41 and lower installation board 42, wherein, test lead circuit 1 and State Transferring end line 2 all correspondence are installed on corresponding upper mounting plate 41, lower installation board 42 is fixed by six screw rods and upper mounting plate 41, therebetween there is certain distance, lower installation board 42 ensure that upper mounting plate 41 parts and lead-in wire with insulate, also play a supporting role simultaneously.Certainly, the number of upper mounting plate 41 can be measured needs according to line parameter circuit value and regulate, and can be to exchange double back six or direct current double back four.
Please refer to shown in Fig. 7, ground capacitance test is carried out to single transmission line of electricity 3, measuring ground capacitance needs transmission line of electricity 3 unsettled over the ground, its method is: close surveying instrument 5, calibrating terminal 15 is connected to the current measurement terminal of surveying instrument 5, calibrating terminal 16 is connected to the voltage measurement terminal of this surveying instrument 5; Then current line connection terminal 111 and pressure-wire connection terminal 121 are electrically connected with one end of transmission line of electricity 3 respectively, current line connection terminal 211 is electrically connected with the other end of transmission line of electricity 3; Stirring armature contact 145 and armature contact 146 makes the two be electrically connected with fixed terminal 141 and fixed terminal 142 respectively, makes the first ground connection of transmission line of electricity 3; Stirring armature contact 223 makes it unsettled, now equals to ensure that the unsettled of transmission line of electricity 3; Stirring armature contact 145 and armature contact 146 makes the two be electrically connected with fixed terminal 143 and fixed terminal 144 respectively, and be connected with calibrating terminal 15 by current line 11, pressure-wire 12 is connected with calibrating terminal 16; Opening surveying instrument 5 makes it measure the ground capacitance of transmission line of electricity 3.Wherein, surveying instrument 5 can adopt YTLP type transmission line power frequency parameter test system.
Please refer to shown in Fig. 8, when similar with it to the situation of two transmission line of electricity 3(more than tri-, here repeat no more) carry out ground capacitance test, its method and single situation similar, specifically: close surveying instrument 5, be connected to the current measurement terminal of surveying instrument 5 after being connected in series by two calibrating terminals 15, after being connected in series by two calibrating terminals 16, be connected to the voltage measurement terminal of this surveying instrument 5; Then the current line connection terminal of first test lead circuit and pressure-wire connection terminal are electrically connected with one end of first transmission line of electricity respectively, the other end of the current line connection terminal of first State Transferring end line and first transmission line of electricity is electrically connected, in like manner, the current line connection terminal of second test lead circuit and pressure-wire connection terminal are electrically connected with one end of second transmission line of electricity respectively, the other end of the current line connection terminal of second State Transferring end line and second transmission line of electricity is electrically connected; Stirring two test lead circuit armature contacts 145 and armature contact 146 makes the two be electrically connected with corresponding fixed terminal 141 and fixed terminal 142 respectively, makes the first ground connection of transmission line of electricity 3; The armature contact 223 stirring two State Transferring end lines makes it all unsettled, now equals to ensure that the unsettled of two transmission lines of electricity; Stirring two test lead circuit armature contacts 145 and armature contact 146 makes the two be electrically connected with corresponding fixed terminal 143 and fixed terminal 144 respectively, be connected with corresponding calibrating terminal 15 by current line 11, pressure-wire 12 is connected with corresponding calibrating terminal 16; Again the short circuit State Transferring connection terminal 23 of two State Transferring end lines is serially connected together; Opening surveying instrument 5 makes it measure the ground capacitance of two transmission lines of electricity.
Please refer to shown in Fig. 9, carry out line inductance to single transmission line of electricity 3 and measure examination, its method is: close surveying instrument 5, calibrating terminal 15 is connected to the current measurement terminal of surveying instrument 5, calibrating terminal 16 is connected to the voltage measurement terminal of this surveying instrument 5; Then current line connection terminal 111 and pressure-wire connection terminal 121 are electrically connected with one end of transmission line of electricity 3 respectively, current line connection terminal 211 is electrically connected with the other end of transmission line of electricity 3; Stirring armature contact 145 and armature contact 146 makes the two be electrically connected with fixed terminal 141 and fixed terminal 142 respectively, makes the first ground connection of transmission line of electricity 3; Then, stir armature contact 223 and make it be connected with fixed terminal 221, be i.e. the other end ground connection of transmission line of electricity 3; Stirring armature contact 145 and armature contact 146 again makes the two be electrically connected with fixed terminal 143 and fixed terminal 144 respectively, and be connected with calibrating terminal 15 by current line 11, pressure-wire 12 is connected with calibrating terminal 16; Opening surveying instrument 5 makes it measure the ground capacitance of transmission line of electricity 3.Here first stirring armature contact 145 and armature contact 146 makes the two be electrically connected with fixed terminal 141 and fixed terminal 142 respectively.
Please refer to shown in Figure 10, when similar with it to the situation of two transmission line of electricity 3(more than tri-, here repeat no more) carry out line inductance measurement examination, its method and single situation similar, specifically: close surveying instrument 5, be connected to the current measurement terminal of surveying instrument 5 after being connected in series by two calibrating terminals 15, after being connected in series by two calibrating terminals 16, be connected to the voltage measurement terminal of this surveying instrument 5; Then the current line connection terminal of first test lead circuit and pressure-wire connection terminal are electrically connected with one end of first transmission line of electricity respectively, the other end of the current line connection terminal of first State Transferring end line and first transmission line of electricity is electrically connected, in like manner, the current line connection terminal of second test lead circuit and pressure-wire connection terminal are electrically connected with one end of second transmission line of electricity respectively, the other end of the current line connection terminal of second State Transferring end line and second transmission line of electricity is electrically connected; Stirring two test lead circuit armature contacts 145 and armature contact 146 makes the two be electrically connected with corresponding fixed terminal 141 and fixed terminal 142 respectively, makes the first ground connection in one end of transmission line of electricity 3; Stirring armature contact 223 makes it be connected with corresponding fixed terminal 221, i.e. the other end ground connection of two transmission lines of electricity 3; Stirring two test lead circuit armature contacts 145 and armature contact 146 makes the two be electrically connected with corresponding fixed terminal 143 and fixed terminal 144 respectively, be connected with corresponding calibrating terminal 15 by current line 11, pressure-wire 12 is connected with corresponding calibrating terminal 16; Again the short circuit State Transferring connection terminal 23 of two State Transferring end lines is serially connected together; Opening surveying instrument 5 makes it measure the ground capacitance of two transmission lines of electricity.
As can be seen from above, at the scene in test process, first armature contact 145 and armature contact 146 should be made the two be electrically connected with corresponding fixed terminal 141 and fixed terminal 142 respectively, stir armature contact 223 to make its be connected with corresponding fixed terminal 221 (even if the two ends of transmission line of electricity 3 are all in ground state) simultaneously, like this can the safety of the person and equipment in warranty test wiring and process of relocating.After completing wiring, corresponding disconnecting link (i.e. double-point double-throw switch and single-pole double-throw switch (SPDT)) is transferred to relevant position (ground connection, unsettled, short circuit) and just can starts test job.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a lightning protection back brake device, it is characterized in that, it comprises test lead circuit (1) and State Transferring end line (2), described test lead circuit (1) and State Transferring end line (2) are connected to the two ends of test transmission line of electricity (3), wherein:
Described test lead circuit (1) comprises the first current line (11), first pressure-wire (12), first ground wire (17), discharging gap (13), double-point double-throw switch (14) and the first calibrating terminal (15) and the second calibrating terminal (16), wherein, double-point double-throw switch (14) comprises the first fixed terminal (141), second fixed terminal (142), 3rd fixed terminal (143), 4th fixed terminal (144), and first armature contact (145) and the second armature contact (146), wherein one end of the first current line (11) is connected with the first armature contact (145), one end of first pressure-wire (12) is connected with the second armature contact (146), first fixed terminal (141) is all connected with the first ground wire (17) with the second fixed terminal (142), 3rd fixed terminal (143) and the 4th fixed terminal (144) are electrically connected with the first calibrating terminal (15) and the second calibrating terminal (16) respectively, the other end of the first current line (11) and the first pressure-wire (12) is respectively equipped with the first current line connection terminal (111) and the first pressure-wire connection terminal (121), described discharging gap (13) comprises the first discharging rod (131) and there is second discharging rod (132) in gap with the first discharging rod (131), wherein, first discharging rod (131) and the first current line connection terminal (111) are electrically connected, second discharging rod (132) and the first ground wire (17) are electrically connected, described first current line connection terminal (111) and the first pressure-wire connection terminal (121) are electrically connected with one end of transmission line of electricity (3) respectively,
Described State Transferring end line (2) comprises the second current line (21), second ground wire (24), single-pole double-throw switch (SPDT) (22) and short circuit State Transferring connection terminal (23), wherein, described single-pole double-throw switch (SPDT) (22) comprises the 5th fixed terminal (221), 6th fixed terminal (222) and one the 3rd armature contact (223), 5th fixed terminal (221) and the 6th fixed terminal (222) are electrically connected with the second ground wire (24) and short circuit State Transferring connection terminal (23) respectively, one end and the 3rd armature contact (223) of described second current line (21) are electrically connected, its other end is provided with one second current line connection terminal (211), described second current line connection terminal (211) is electrically connected with the other end of transmission line of electricity (3).
2. lightning protection back brake device according to claim 1, it is characterized in that, described transmission line of electricity (3) is at least two, the quantity of described State Transferring end line (2) and test lead circuit (1) is all equal with the quantity of transmission line of electricity (3), described State Transferring end line (2) and test lead circuit (1) one_to_one corresponding are electrically connected at the two ends of transmission line of electricity (3), and all test lead circuits (1) are positioned at the same side of transmission line of electricity (3).
3. lightning protection back brake device according to claim 2, is characterized in that, described test lead circuit (1) and State Transferring end line (2) are installed on the first installing plate and the second installing plate respectively.
4. lightning protection back brake device according to claim 3, is characterized in that, the first installing plate and the second installing plate are epoxy plate (4).
5. lightning protection back brake device according to claim 1, it is characterized in that, described discharging gap (13) comprises the first sheet metal (133) and the second sheet metal (134) that are parallel to each other further, described first discharging rod (131) and the second discharging rod (132) are installed on the first sheet metal (133) and the second sheet metal (134) respectively, and the axis of the first discharging rod (131) and the second discharging rod (132) on the same line.
6. lightning protection back brake device according to claim 5, it is characterized in that, the correspondence position of described first sheet metal (133) and the second sheet metal (134) is respectively equipped with the first perforation and the second perforation, described first discharging rod (131) and the second discharging rod (132) are through in the first perforation and the second perforation respectively, and the first perforation and biperforate both sides are equipped with the nut be threaded with the first discharging rod (131) and the second discharging rod (132) respectively.
7. adopt the lightning protection back brake device described in any one of claim 1-6 to carry out the measuring method of ground capacitance, it is characterized in that, it comprises the following steps:
A, test lead circuit (1) and State Transferring end line (2) are connected respectively the two ends in transmission line of electricity (3);
B, stir the first armature contact (145) and the second armature contact (146) and make the two be electrically connected with the first fixed terminal (141) and the second fixed terminal (142) respectively;
C, stir the 3rd armature contact (223) and make it unsettled;
D, stir the first armature contact (145) and the second armature contact (146) and make the two be electrically connected with the 3rd fixed terminal (143) and the 4th fixed terminal (144) respectively;
E, the first calibrating terminal (15) are all connected to the current measurement terminal of a surveying instrument (5), and the second calibrating terminal (16) is all connected to the voltage measurement terminal of this surveying instrument (5);
F, open surveying instrument (5) and measure.
8. lightning protection back brake device according to claim 7 carries out the measuring method of ground capacitance, it is characterized in that, described surveying instrument (5) is YTLP type transmission line power frequency parameter test system.
9. adopt the lightning protection back brake device described in any one of claim 1-6 to carry out the measuring method of line electricity sensibility reciprocal, it is characterized in that, it comprises the following steps:
A, test lead circuit (1) and State Transferring end line (2) are connected respectively the two ends in transmission line of electricity (3);
B, stir the first armature contact (145) and the second armature contact (146) and make the two be electrically connected with the first fixed terminal (141) and the second fixed terminal (142) respectively;
C, stir the 3rd armature contact (223) itself and the second ground wire (24) are electrically connected;
D, stirring the first armature contact (145) and the second armature contact (146), making the two position transfer to being electrically connected with the 3rd fixed terminal (143) and the 4th fixed terminal (144) respectively;
E, the first calibrating terminal (15) are all connected to the current measurement terminal of a surveying instrument (5), and the second calibrating terminal (16) is all connected to the voltage measurement terminal of this surveying instrument (5);
F, open surveying instrument (5) and measure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310516160.7A CN103616537B (en) | 2013-10-28 | 2013-10-28 | A kind of method of lightning protection back brake device and measurement ground capacitance and line electricity sensibility reciprocal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310516160.7A CN103616537B (en) | 2013-10-28 | 2013-10-28 | A kind of method of lightning protection back brake device and measurement ground capacitance and line electricity sensibility reciprocal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103616537A CN103616537A (en) | 2014-03-05 |
| CN103616537B true CN103616537B (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310516160.7A Active CN103616537B (en) | 2013-10-28 | 2013-10-28 | A kind of method of lightning protection back brake device and measurement ground capacitance and line electricity sensibility reciprocal |
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| CN2094776U (en) * | 1991-06-05 | 1992-01-29 | 南宁电力学校 | Switching demonstration teaching aid |
| CN102570613A (en) * | 2012-01-31 | 2012-07-11 | 广东电网公司中山供电局 | Intelligent bypass replacement and replacement recovery switch-pulling programming operation method |
| CN202749782U (en) * | 2012-05-28 | 2013-02-20 | 南方电网科学研究院有限责任公司 | Transmission line ice melting system implemented by switching operation in whole process |
| CN203572849U (en) * | 2013-10-28 | 2014-04-30 | 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 | Anti-lightening switching device |
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| CN2094776U (en) * | 1991-06-05 | 1992-01-29 | 南宁电力学校 | Switching demonstration teaching aid |
| CN102570613A (en) * | 2012-01-31 | 2012-07-11 | 广东电网公司中山供电局 | Intelligent bypass replacement and replacement recovery switch-pulling programming operation method |
| CN202749782U (en) * | 2012-05-28 | 2013-02-20 | 南方电网科学研究院有限责任公司 | Transmission line ice melting system implemented by switching operation in whole process |
| CN203572849U (en) * | 2013-10-28 | 2014-04-30 | 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 | Anti-lightening switching device |
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| CN103616537A (en) | 2014-03-05 |
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