CN104466788A - Method and device for detecting power distribution overhead line - Google Patents
Method and device for detecting power distribution overhead line Download PDFInfo
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- CN104466788A CN104466788A CN201310436218.7A CN201310436218A CN104466788A CN 104466788 A CN104466788 A CN 104466788A CN 201310436218 A CN201310436218 A CN 201310436218A CN 104466788 A CN104466788 A CN 104466788A
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Abstract
The invention discloses a method and device for detecting a power distribution overhead line. The method for detecting the power distribution overhead line comprises the steps that a maintenance region of a main line in the power distribution overhead line is acquired; a power supply interrupted region in the maintenance region is determined, and is a region at the power-free state in the maintenance region; the main line is detected in the power supply interrupted region. Through the method and device, the effect of improving the detection safety of the power distribution overhead line is achieved.
Description
Technical field
The present invention relates to for electrical domain, in particular to a kind of detection method and device of distribution overhead line.
Background technology
Along with society is to the increase of continuous reliable power supply demand and the propelling to live working of distribution network work in every, live working of distribution network project is made to obtain fast development, conventional charged events in operation have reached four class 30 remainders, and some other live line working project has also been carried out in conjunction with each department feature in each department.Wherein part live line working project complexity is higher, and along with the increase of complexity, task difficulty and operation danger also increase thereupon.At present, for the live line working project of complexity, staff mainly climbs up electric pole and carries out live line working by insulating bar, or rises to setting by aerial lift device with insulated arm, carries out live line working by insulating protection apparatus.Inventor finds, adopts said method, and the insulating protection work in early stage is complicated, and staff is in live line working process, low to the fault detect fail safe of distribution overhead line, length consuming time.
For the problem that the detect security of distribution overhead line in prior art is low, at present effective solution is not yet proposed.
Summary of the invention
Main purpose of the present invention is the detection method and the device that provide a kind of distribution overhead line, to solve the problem that in prior art, the detect security of distribution overhead line is low.
To achieve these goals, according to an aspect of the present invention, a kind of detection method of distribution overhead line is provided.Detection method according to distribution overhead line of the present invention comprises: the service area obtaining main line in distribution overhead line; Determine the power supply interrupted district in service area, power supply interrupted district is the region in service area under electroless state; And at power supply interrupted district, main line is detected.
Further, the service area obtaining main line in distribution overhead line comprises: obtain the region of overhauling device place in main line, and maintenance device is the power supply device needing to detect; The region at maintenance device place is defined as service area; Determine that the power supply interrupted district in service area comprises: arrange by-pass line in service area, by-pass line is in parallel with main line; Cut off the electric current of main line; Using the region at the main line place after cut-out electric current as power supply interrupted district.
Further, maintenance device comprises on-load switch bar, and the service area obtaining main line in distribution overhead line comprises: the region obtaining on-load switch bar place in main line; The region at on-load switch bar place is defined as service area; Determine that the power supply interrupted district in service area comprises: the first bypass cable and the second bypass cable are set respectively in on-load switch bar both sides, between the first bypass cable and the second bypass cable, are connected with by-pass switch; Cut off the electric current of on-load switch bar: using the region at the on-load switch bar place after cut-out electric current as power supply interrupted district.
Further, the electric current cutting off on-load switch bar comprises: the wire obtaining on-load switch bar both sides setting position, and the wire of setting position is positioned on main line; Closes bypass switch, by-pass line is energized; And the wire of cut-out setting position is to cut off the electric current of on-load switch bar.
Further, after power supply interrupted district detects main line, the detection method of distribution overhead line also comprises: the wire connecting setting position; And rejecting by-pass line, recover main line and power.
To achieve these goals, according to a further aspect in the invention, a kind of checkout gear of distribution overhead line is provided.Detection method according to distribution overhead line of the present invention comprises: acquiring unit, for obtaining the service area of main line in distribution overhead line; Determining unit, for determining the power supply interrupted district in service area, power supply interrupted district is the region in service area under electroless state; And detecting unit, for detecting main line at power supply interrupted district.
Further, acquiring unit comprises: acquisition module, and for obtaining in main line the region of overhauling device place, maintenance device is the power supply device needing to detect; First determination module, for being defined as service area by the region at maintenance device place; Determining unit comprises: arrange module, and for arranging by-pass line in service area, by-pass line is in parallel with main line; Cut off module, for cutting off the electric current of main line; Second determination module, for cutting off the region at the main line place after electric current as power supply interrupted district.
Further, maintenance device comprises on-load switch bar, and acquisition module is for obtaining the region at on-load switch bar place in main line; First determination module is used for the region at on-load switch bar place to be defined as service area; Module being set for arranging the first bypass cable and the second bypass cable respectively in on-load switch bar both sides, between the first bypass cable and the second bypass cable, being connected with by-pass switch; Cut off module for cutting off the electric current of on-load switch bar: and the second determination module is used for the region at the on-load switch bar place after using cut-out electric current as power supply interrupted district.
Further, cut off module to comprise: obtain submodule, for obtaining the wire of on-load switch bar both sides setting position, the wire of setting position is positioned on main line; Control submodule, for closes bypass switch, by-pass line is energized; And cut-out submodule, for cutting off the wire of setting position to cut off the electric current of on-load switch bar.
Further, the checkout gear of distribution overhead line also comprises: linkage unit, after detecting main line at power supply interrupted district, connects the wire of setting position; And culling unit, for rejecting by-pass line, recovering main line and powering.
By the present invention, adopt the detection method of distribution overhead line, the detection method of this distribution overhead line comprises: the service area obtaining main line in distribution overhead line; Determine the power supply interrupted district in described service area, described power supply interrupted district is the region in described service area under electroless state; And at described power supply interrupted district, described main line is detected, obtain the service area in the main circuit that will overhaul, and determine the power supply interrupted district in service area, so that detecting unit detects main line at power supply interrupted district, because this power supply interrupted district is in the state without electricity, therefore when detecting main line, the impact of electric current or voltage can not be subject to, solve the problem that the detect security of distribution overhead line is low, and then reach the effect of the detect security improving distribution overhead line.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structure chart of the checkout gear of distribution overhead line according to a first embodiment of the present invention;
Fig. 2 is the structure chart of the checkout gear of distribution overhead line according to a second embodiment of the present invention;
Fig. 3 is the schematic diagram of the on-load switch bar according to the embodiment of the present invention;
Fig. 4 is the schematic diagram arranged after by-pass line of the on-load switch bar according to the embodiment of the present invention;
Fig. 5 be according to the detection of the on-load switch bar of the embodiment of the present invention after schematic diagram;
Fig. 6 is the detection method flow chart of distribution overhead line according to a first embodiment of the present invention;
Fig. 7 is the detection method flow chart of distribution overhead line according to a second embodiment of the present invention; And
Fig. 8 is the detection method flow chart of distribution overhead line according to a third embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Embodiments provide a kind of checkout gear of distribution overhead line.
Fig. 1 is the structure chart of the checkout gear of distribution overhead line according to a first embodiment of the present invention.As shown in Figure 1, the checkout gear of this distribution overhead line comprises acquiring unit 10, determining unit 20 and detecting unit 30.Acquiring unit 10 is for obtaining the service area of main line in distribution overhead line, this service area is the region needing to carry out detecting and overhauling, this service area can be the region at one section of cable place in main line, also can be the region at a power supply unit place in main line.Such as isolating switch or on-load switch bar need to carry out detecting or overhauling, and so the region at isolating switch or on-load switch bar place is service area.By obtaining this service area, to know the region needing power supply unit or the cable place detected, so that detect power supply unit or cable and overhaul.Determining unit 20 is for determining the power supply interrupted district in service area, and power supply interrupted district is the region in service area under electroless state.Electric wire in power supply interrupted district or cable no current pass through, power supply interrupted district is set up in service area, and determine this power supply interrupted district by determining unit 20, so that staff or maintenance of equipment overhaul the power supply unit in service area or cable in this power supply interrupted district, and overhaul according to the situation of the power supply unit after detection or cable, because this power supply interrupted district is electroless state, therefore staff or plant equipment can not be subject to the impact of electric current or voltage.Detecting unit 30 is for detecting main line at power supply interrupted district.Detecting unit 30 can be plant equipment, for detecting the main line in service area, especially detects the power supply unit in main line or cable etc., and overhauls according to the situation of the power supply unit after detection or cable.
Pass through the embodiment of the present invention, obtain the service area in the main circuit that will detect, and determine the power supply interrupted district in service area, so that detecting unit 30 detects main line at power supply interrupted district, because this power supply interrupted district is in the state without electricity, therefore when detecting main line, the impact of electric current or voltage can not be subject to, improve the fail safe of the detection to main line in distribution overhead line.
Fig. 2 is the structure chart of the checkout gear of distribution overhead line according to a second embodiment of the present invention.The checkout gear of the distribution overhead line of the present embodiment can as a kind of preferred implementation of the checkout gear of the distribution overhead line of above-described embodiment.As described in Figure 2, the checkout gear of this distribution overhead line comprises acquiring unit 10, determining unit 20 and detecting unit 30, wherein, acquiring unit 10 comprises acquisition module 101 and the first determination module 102, and determination module comprises and arranges module 201, cuts off module 202 and the second determination module 203.
Acquisition module 101 overhauls the region at device place for obtaining in main line, maintenance device is the power supply device needing to detect.Needing the power supply device detected to that is to say maintenance device, can be power supply unit, as isolating switch, on-load switch bar, terminal pole, tension-resistant rod etc., also can be the cable etc. in power supply main line.The region obtaining maintenance device place that is to say the position obtaining this maintenance device place, so that obtain the concrete power supply device needing maintenance.
First determination module 102 is for being defined as service area by the region at maintenance device place.When getting the position at the concrete power supply device place needing maintenance, the first determination module 102 is for being defined as service area by the region of this position.Such as, when in main line of powering, an isolating switch breaks down, obtained the particular location of this isolating switch by acquisition module 101, the region of this position is defined as service area by the first determination module 102, so that overhaul this isolating switch in time.
Arrange module 201 for arranging by-pass line in service area, by-pass line is in parallel with main line.After determining service area, by-pass line is set in the side of the main line of service area, in parallel with main line.In the process detected main line, this bypass circuit, for bearing the electric current in main line, makes whole main line in detection or maintenance process, still can power, and not by the impact of this section of main line.
Cut off module 202 for cutting off the electric current of main line.By the electric wire in this service area in main line or cable cutting, to cut off the electric current in main line, and electric current is allowed to pass through from by-pass line.Because the electric current of this section of main line is cut off, the power supply unit therefore in maintenance this section of main line or cable etc. can not be subject to the impact of electric current.
Second determination module 203 will be for cutting off the region at the main line place after electric current as power supply interrupted district.This main line is one section of main line after cutting off module 202 cut-out, and because the electric current in this section of main line is cut off, therefore this section of main line is in electroless state.Second determination module 203 using the region at this section of main line place as power supply interrupted district so that detect at this power supply interrupted district the maintenance device on main line or overhaul.
Fig. 3 is the schematic diagram of the on-load switch bar according to the embodiment of the present invention.As shown in Figure 3, on-load switch is erected on electric pole 2, and main line 1 is for powering to supply line.When overhauling device for on-load switch bar shown in Fig. 3, acquisition module 101 is for obtaining the region at on-load switch bar place in main line.Main line comprises multiple on-load switch bar, and the on-load switch bar in the present embodiment is the on-load switch bar needing to carry out detecting or overhauling.Acquisition module 101, for obtaining the position at this on-load switch bar place, that is to say the region at this on-load switch bar place.
First determination module 102 is for being defined as service area by the region at on-load switch bar place.When getting the position at the on-load switch bar place needing maintenance, the first determination module 102 is for being defined as service area by the region of this position.So that detect this on-load switch bar or overhaul in time.
Module 201 is set for arranging the first bypass cable 3 in on-load switch bar both sides respectively and being connected with by-pass switch 5 between the second bypass cable 4, first bypass cable 3 and the second bypass cable 4.As shown in Figure 4, by-pass line comprises the first bypass cable 3 and the second bypass cable 4 and by-pass switch 5.Module 201 is set for arranging the first bypass cable 3 in the left side of on-load switch bar, the right side of on-load switch bar arranges the second bypass cable 4, by-pass switch 5 arranges on electric pole 2, wherein the first bypass cable 3 is connected by by-pass switch 5 with the second bypass cable 4, owing to main line including three cables, therefore three cables are included at the first bypass cable 3 and the second bypass cable 4, three cable one_to_one corresponding in the first bypass cable 3 and the second bypass cable 4.By-pass switch 5 is for being switched on or switched off the electric current of by-pass line.
Cutting off module 202 for cutting off the electric current of on-load switch bar, by the electric wire of these internal loading switch lever both sides, service area in main line or cable cutting, to cut off the electric current in on-load switch bar, and allowing electric current pass through from by-pass line.Because the electric current of this on-load switch bar is cut off, the on-load switch bar therefore in maintenance this section of main line can not be subject to the impact of electric current.
Second determination module 203 will be for cutting off the region at the on-load switch bar place after electric current as power supply interrupted district.This on-load switch bar is the on-load switch bar needing to carry out detecting or overhauling, and the electric current in this on-load switch bar is cut off, and therefore on-load switch bar is in electroless state.Second determination module 203 is using the region at on-load switch bar place as power supply interrupted district, and the region as shown in label in Fig. 48, so that detect at this power supply interrupted district on-load switch bar or overhaul.
Preferably, cut off module 202 to comprise acquisition submodule, open submodule and cut off submodule.Obtain submodule for obtaining the wire of on-load switch bar both sides setting position, the wire of setting position is positioned on main line.This desired location can set by the environment residing for on-load switch bar reality.This desired location can apart from 5 meters, on-load switch bar or 10 meters etc.Because all there is wire on-load switch bar both sides, therefore, this desired location comprises two desired locations, lays respectively at the both sides of on-load switch bar, wherein lay respectively at the desired location distance on-load switch bar of the both sides of on-load switch bar distance can equal also can be unequal.After obtaining the wire of this setting position, insulation wire grip 6 is adopted to be tightened up by the wire of this setting position, as shown in Figure 4.This wire grip 6 can be rigid insulation wire grip 6, the wire at the wire place of this setting position is tightened up, and by rigid insulation wire grip 6 fix this setting position wire so that cut off submodule this is tightened up after wire cut off, simultaneously by the fixation of rigid insulation wire grip 6, the wire after cutting off is made still to be in connection status.
Control submodule and be used for closes bypass switch 5, by-pass line is energized.By-pass switch 5 is closed, makes to connect between the first bypass cable 3 of on-load switch bar both sides and the second bypass cable 4, have electric current to pass through, by-pass line is energized.
Cut off submodule for cutting off the wire of setting position to cut off the electric current of on-load switch bar.After by-pass line energising is normal, cut off the wire that submodule cuts off setting position.Although the wire after cut-out is still in connection status by rigid insulation wire grip 6, because rigid insulation wire grip 6 has insulation property, do not have electric current between the wire after therefore cutting off and pass through, that is to say that the electric current of on-load switch bar is cut off.
The checkout gear of distribution overhead line also comprises linkage unit and culling unit.Linkage unit is used for after power supply interrupted district detects main line, connects the wire of setting position.Because the wire of setting position is cut-off before detecting main line, therefore after main line is detected, the connection status before needing main line to return to.Fig. 5 be according to the detection of the on-load switch bar of the embodiment of the present invention after schematic diagram.As shown in Figure 5, linkage unit can adopt fast splicing sleeve 7 to be connected by the wire of setting position, and wherein fast splicing sleeve 7 leads to metal tube and insulating sleeve in comprising.Wherein, in logical metal tube be current-carrying part, for connecting the wire of setting position, insulating sleeve ensures the insulation of wire and the characteristic of waterproof after connecting wire, in connection procedure, utilize crimping tool to be reliably connected with fast splicing sleeve 7 by wire, and adopt at fast splicing sleeve 7 two ends special insulating tape envelope to twine fixing.After being connected by wire, remove rigid insulation wire grip 6.
Culling unit, for rejecting by-pass line, recovers main line and powers.The first bypass cable 3 in by-pass line and the second bypass cable 4 and by-pass switch 5 are rejected, makes have electric current to pass through in on-load switch bar, to recover the power supply of main line.
The embodiment of the present invention additionally provides a kind of detection method of distribution overhead line.It should be noted that, the checkout gear of the distribution overhead line that the detection method of the distribution overhead line of the embodiment of the present invention can be provided by the embodiment of the present invention performs, and the checkout gear of the distribution overhead line of the embodiment of the present invention also may be used for the detection method performing the distribution overhead line that the embodiment of the present invention provides.
Fig. 6 is the detection method flow chart of distribution overhead line according to a first embodiment of the present invention.As shown in Figure 6, to comprise step as follows for the detection method of this distribution overhead line:
Step S101, obtains the service area of main line in distribution overhead line.This service area is the region needing to carry out detecting, and this service area can be the region at one section of cable place in main line, also can be the region at a power supply unit place in main line.Such as isolating switch or on-load switch bar need to carry out detecting or overhauling, and so the region at isolating switch or on-load switch bar place is service area.By obtaining this service area, to know the region needing power supply unit or the cable place detected, so that detect power supply unit or cable and overhaul.
Step S102, determines the power supply interrupted district in service area, and power supply interrupted district is the region in service area under electroless state.Electric wire in power supply interrupted district or cable no current pass through, power supply interrupted district is set up in service area, and determine this power supply interrupted district by determining unit 20, so that staff or maintenance of equipment detect the power supply unit in service area or cable in this power supply interrupted district, and overhaul according to the situation of the power supply unit after detection or cable, because this power supply interrupted district is electroless state, therefore staff or plant equipment can not be subject to the impact of electric current or voltage.
Step S103, detects main line at power supply interrupted district.Detecting unit 30 can be plant equipment, for detecting the main line in service area, especially detects the power supply unit in main line or cable etc., so that the later stage maintenance carried out for the power supply unit on main line or cable.
Pass through the embodiment of the present invention, obtain the service area in the main circuit that will overhaul, and determine the power supply interrupted district in service area, so that detecting unit 30 detects main line at power supply interrupted district, because this power supply interrupted district is in the state without electricity, therefore when detecting main line, the impact of electric current or voltage can not be subject to, improve the fail safe of the detection to main line in distribution overhead line.
Fig. 7 is the detection method flow chart of distribution overhead line according to a second embodiment of the present invention.The detection method of this distribution overhead line can as a kind of preferred implementation of the detection method of the distribution overhead line of above-described embodiment.As shown in Figure 7, to comprise step as follows for the detection method of this distribution overhead line:
Step S201, obtains the region of overhauling device place in main line, and maintenance device is the power supply device needing to detect.Needing the power supply device detected to that is to say maintenance device, can be power supply unit, as isolating switch, on-load switch bar etc., also can be the cable etc. in power supply main line.The region obtaining maintenance device place that is to say the position obtaining this maintenance device place, so that obtain the concrete power supply device needing maintenance.
Step S202, is defined as service area by the region at maintenance device place.When getting the position at the concrete power supply device place needing maintenance, the first determination module 102 is for being defined as service area by the region of this position.Such as, when in main line of powering, an isolating switch breaks down, obtained the particular location of this isolating switch by acquisition module 101, the region of this position is defined as service area by the first determination module 102, so that detect this isolating switch and overhaul in time.
Step S203, arranges by-pass line in service area, and by-pass line is in parallel with main line.After determining service area, by-pass line is set in the side of the main line of service area, in parallel with main line.In the process of overhauling main line, this bypass circuit, for bearing the electric current in main line, makes whole main line in detection or maintenance process, still can power, and not by the impact of this section of main line.
Step S204, cuts off the electric current of main line.By the electric wire in this service area in main line or cable cutting, to cut off the electric current in main line, and electric current is allowed to pass through from by-pass line.Because the electric current of this section of main line is cut off, the power supply unit therefore in maintenance this section of main line or cable etc. can not be subject to the impact of electric current.
Step S205, using the region at the main line place after cut-out electric current as power supply interrupted district.This main line is one section of main line after cutting off module 202 cut-out, and because the electric current in this section of main line is cut off, therefore this section of main line is in electroless state.Second determination module 203 using the region at this section of main line place as power supply interrupted district so that detect at this power supply interrupted district the maintenance device on main line or overhaul.
Step S206, detects main line at power supply interrupted district.Detect the main line in service area, especially the power supply unit in main line or cable etc. are detected, so that keep in repair the power supply unit on main line or cable.
Fig. 8 is the detection method flow chart of distribution overhead line according to a third embodiment of the present invention.The detection method of this distribution overhead line can as a kind of preferred implementation of the detection method of the distribution overhead line of above-described embodiment.As shown in Figure 8, to comprise step as follows for the detection method of this distribution overhead line:
Step S301, obtains the region at on-load switch bar place in main line.Main line comprises multiple on-load switch bar, and the on-load switch bar in the present embodiment is the on-load switch bar needing to carry out detecting or overhauling.Acquisition module 101, for obtaining the position at this on-load switch bar place, that is to say the region at this on-load switch bar place.
Step S302, is defined as service area by the region at on-load switch bar place.When getting the position at the on-load switch bar place needing maintenance, the first determination module 102 is for being defined as service area by the region of this position.So that detect this on-load switch bar or overhaul in time.
Step S303, arranges the first bypass cable 3 respectively and is connected with by-pass switch 5 between the second bypass cable 4, first bypass cable 3 and the second bypass cable 4 in on-load switch bar both sides.As shown in Figure 4, by-pass line comprises the first bypass cable 3 and the second bypass cable 4 and by-pass switch 5.Module 201 is set for arranging the first bypass cable 3 in the left side of on-load switch bar, the right side of on-load switch bar arranges the second bypass cable 4, by-pass switch 5 arranges on electric pole 2, wherein the first bypass cable 3 is connected by by-pass switch 5 with the second bypass cable 4, owing to main line including three cables, therefore three cables are included at the first bypass cable 3 and the second bypass cable 4, three cable one_to_one corresponding in the first bypass cable 3 and the second bypass cable 4.By-pass switch 5 is for being switched on or switched off the electric current of by-pass line.
Step S304, cuts off the electric current of on-load switch bar.By the electric wire of these internal loading switch lever both sides, service area in main line or cable cutting, to cut off the electric current in on-load switch bar, and electric current is allowed to pass through from by-pass line.Because the electric current of this on-load switch bar is cut off, the on-load switch bar therefore in maintenance this section of main line can not be subject to the impact of electric current.
Step S305, using the region at the on-load switch bar place after cut-out electric current as power supply interrupted district.This on-load switch bar is the on-load switch bar needing to carry out detecting or overhauling, and the electric current in this on-load switch bar is cut off, and therefore on-load switch bar is in electroless state.Second determination module 203 using the region at on-load switch bar place as power supply interrupted district so that detect at this power supply interrupted district on-load switch bar or overhaul.
Step S306, detects main line at power supply interrupted district.Detect the main line in service area, especially the power supply unit in main line or cable etc. are overhauled, so that keep in repair the power supply unit on main line or cable.
Preferably, step S304 comprises: the wire obtaining on-load switch bar both sides setting position, the wire of setting position is positioned on main line.This desired location can set by the environment residing for on-load switch bar reality.This desired location can apart from 5 meters, on-load switch bar or 10 meters etc.Because all there is wire on-load switch bar both sides, therefore, this desired location comprises two desired locations, lays respectively at the both sides of on-load switch bar, wherein lay respectively at the desired location distance on-load switch bar of the both sides of on-load switch bar distance can equal also can be unequal.After obtaining the wire of this setting position, insulation wire grip 6 is adopted to be tightened up by the wire of this setting position.This wire grip 6 can be rigid insulation wire grip 6, the wire at the wire place of this setting position is tightened up, and by rigid insulation wire grip 6 fix this setting position wire so that cut off submodule this is tightened up after wire cut off, simultaneously by the fixation of rigid insulation wire grip 6, the wire after cutting off is made still to be in connection status.The wire of the main line of on-load switch bar both sides is tightened up with wire grip 6.Open by-pass switch 5, by-pass line is energized.Closes bypass switch 5, by-pass line is energized.By-pass switch 5 is closed, makes to connect between the first bypass cable 3 of on-load switch bar both sides and the second bypass cable 4, have electric current to pass through, by-pass line is energized.Cut off the wire of setting position to cut off the electric current of on-load switch bar.After by-pass line energising is normal, cut off the wire that submodule cuts off setting position.Although the wire after cut-out is still in connection status by rigid insulation wire grip 6, because rigid insulation wire grip 6 has insulation property, do not have electric current between the wire after therefore cutting off and pass through, that is to say that the electric current of on-load switch bar is cut off.
Preferably, after power supply interrupted district detects main line, connect the wire of setting position.Reject by-pass line, recover main line and power.Because the wire of setting position is cut-off before detecting main line, therefore after main line is detected, the connection status before needing main line to return to.Fig. 5 be according to the detection of the on-load switch bar of the embodiment of the present invention after schematic diagram.As shown in Figure 5, linkage unit can adopt fast splicing sleeve 7 to be connected by the wire of setting position, and wherein fast splicing sleeve 7 leads to metal tube and insulating sleeve in comprising.Wherein, in logical metal tube be current-carrying part, for connecting the wire of setting position, insulating sleeve ensures the insulation of wire and the characteristic of waterproof after connecting wire, in connection procedure, utilize crimping tool to be reliably connected with fast splicing sleeve 7 by wire, and adopt at fast splicing sleeve 7 two ends special insulating tape envelope to twine fixing.After being connected by wire, remove rigid insulation wire grip 6.The first bypass cable 3 in by-pass line and the second bypass cable 4 and by-pass switch 5 are rejected, makes have electric current to pass through in on-load switch bar, to recover the power supply of main line.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
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 (10)
1. a detection method for distribution overhead line, is characterized in that, comprising:
Obtain the service area of main line in distribution overhead line;
Determine the power supply interrupted district in described service area, described power supply interrupted district is the region in described service area under electroless state; And
At described power supply interrupted district, described main line is detected.
2. the detection method of distribution overhead line according to claim 1, is characterized in that,
The service area obtaining main line in distribution overhead line comprises: obtain the region of overhauling device place in described main line, and described maintenance device is the power supply device needing to detect; The region at described maintenance device place is defined as described service area;
Determine that the power supply interrupted district in described service area comprises: arrange by-pass line in described service area, described by-pass line is in parallel with described main line; Cut off the electric current of described main line; Using the region at the described main line place after cut-out electric current as power supply interrupted district.
3. the detection method of distribution overhead line according to claim 2, is characterized in that, described maintenance device comprises on-load switch bar,
The service area obtaining main line in distribution overhead line comprises: the region obtaining the place of on-load switch bar described in described main line; The region at described on-load switch bar place is defined as described service area;
Determine that the power supply interrupted district in described service area comprises: the first bypass cable and the second bypass cable are set respectively in described on-load switch bar both sides, between described first bypass cable and described second bypass cable, are connected with by-pass switch; Cut off the electric current of described on-load switch bar: using the region at the described on-load switch bar place after cut-out electric current as power supply interrupted district.
4. the detection method of distribution overhead line according to claim 3, is characterized in that, the electric current cutting off described on-load switch bar comprises:
Obtain the wire of described on-load switch bar both sides setting position, the wire of described setting position is positioned on described main line;
Closed described by-pass switch, by-pass line is energized; And
Cut off the wire of described setting position to cut off the electric current of described on-load switch bar.
5. the detection method of distribution overhead line according to claim 4, is characterized in that, after described power supply interrupted district detects described main line, the detection method of described distribution overhead line also comprises:
Connect the wire of described setting position; And
Reject described by-pass line, recover described main line and power.
6. a checkout gear for distribution overhead line, is characterized in that, comprising:
Acquiring unit, for obtaining the service area of main line in distribution overhead line;
Determining unit, for determining the power supply interrupted district in described service area, described power supply interrupted district is the region in described service area under electroless state; And
Detecting unit, for detecting described main line at described power supply interrupted district.
7. the checkout gear of distribution overhead line according to claim 6, is characterized in that,
Described acquiring unit comprises: acquisition module, and for obtaining the region of overhauling device place in described main line, described maintenance device is the power supply device needing to detect;
First determination module, for being defined as described service area by the region at described maintenance device place;
Described determining unit comprises: arrange module, and for arranging by-pass line in described service area, described by-pass line is in parallel with described main line;
Cut off module, for cutting off the electric current of described main line;
Second determination module, for cutting off the region at the described main line place after electric current as power supply interrupted district.
8. the checkout gear of distribution overhead line according to claim 7, is characterized in that, described maintenance device comprises on-load switch bar,
Described acquisition module is for obtaining the region at the place of on-load switch bar described in described main line;
Described first determination module is used for the region at described on-load switch bar place to be defined as described service area;
The described module that arranges, for arranging the first bypass cable and the second bypass cable respectively in described on-load switch bar both sides, is connected with by-pass switch between described first bypass cable and described second bypass cable;
Described cut-out module is for cutting off the electric current of described on-load switch bar: and
Described second determination module is used for the region at the described on-load switch bar place after using cut-out electric current as power supply interrupted district.
9. the checkout gear of distribution overhead line according to claim 8, is characterized in that, described cut-out module comprises:
Obtain submodule, for obtaining the wire of described on-load switch bar both sides setting position, the wire of described setting position is positioned on described main line;
Control submodule, for closed described by-pass switch, by-pass line is energized; And
Cut off submodule, for cutting off the wire of described setting position to cut off the electric current of described on-load switch bar.
10. the checkout gear of distribution overhead line according to claim 9, is characterized in that, the checkout gear of described distribution overhead line also comprises:
Linkage unit, after detecting described main line at described power supply interrupted district, connects the wire of described setting position; And
Culling unit, for rejecting described by-pass line, recovering described main line and powering.
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