CN110783880B - Special connecting device for 10kV bypass operation system - Google Patents
Special connecting device for 10kV bypass operation system Download PDFInfo
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- CN110783880B CN110783880B CN201911132022.2A CN201911132022A CN110783880B CN 110783880 B CN110783880 B CN 110783880B CN 201911132022 A CN201911132022 A CN 201911132022A CN 110783880 B CN110783880 B CN 110783880B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
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Abstract
The invention discloses a special connecting device for a 10kV bypass operation system, which belongs to the field of power supply equipment and realizes long-distance and multi-branch operation, and the special connecting device for the 10kV bypass operation system comprises a connecting box body and a connecting component which is positioned in the connecting box body and is used for keeping a transmission cable and at least one three-core engineering cable to be electrically connected, the connecting assembly comprises a base and three L-shaped sleeves fixed on the base, the three L-shaped sleeves are provided with input ends and output ends, the input end is electrically connected with the transmission cable, the output end is electrically connected with a first cable head, the first cable head is provided with a first plug-in end and a first connecting end, the first inserting end is inserted into the output end, the insulating cover covers the first connecting end or a second cable head is inserted into the first connecting end, and the first cable head and the second cable head can be electrically connected with the three-core engineering cable.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of power supply equipment, in particular to a special connecting device for a 10kV bypass operation system.
[ background of the invention ]
The bypass operation refers to transferring the load in the distribution network to a bypass system through the access of bypass equipment, so that the purpose of power failure maintenance of the equipment to be maintained is achieved. The bypass cable is a main body for constructing a current channel of a bypass system, the length of a single bypass flexible cable is generally 50 meters, when a multi-gear overhead line or a cable line needs to be subjected to bypass maintenance, a plurality of flexible cables are connected through an intermediate connector, the current channel with the corresponding length is constructed, when the bypass channel constructed by the flexible cables exceeds 300 meters, the circulation negative effect of the single cable is obvious, and 70mm is generally used2The common three-core engineering cable with the specification is replaced, three cables are arranged in the three-core engineering cable, the three-core engineering cable is not convenient to connect with a generator car and the three-core engineering cable, and multi-branch operation is difficult to realize.
[ summary of the invention ]
The invention aims to overcome the defects of the prior art and provides a special connecting device for a 10kV bypass operation system to realize long-distance and multi-branch operation.
In order to solve the technical problems, the invention adopts the following technical scheme:
the special connecting device for the 10kV bypass operation system comprises a connecting box body and a connecting assembly, wherein the connecting assembly is positioned in the connecting box body and used for keeping a transmission cable and at least one three-core engineering cable to be electrically connected, the connecting assembly comprises a base and three L-shaped sleeves fixed on the base, the three L-shaped sleeves are provided with input ends and output ends, the input ends are electrically connected with the transmission cable, the output ends are electrically connected with a first cable head, the first cable head is provided with a first plugging end and a first connecting end, the first plugging end is plugged with the output ends, an insulating cover is covered at the first connecting end or a second cable head is plugged at the first connecting end, and the first cable head and the second cable head can be electrically connected with the three-core engineering cable; the connecting box body comprises a bottom box body and a top box body, if the first connecting end is connected with a second cable head in an inserting mode, a middle box body is further arranged between the bottom box body and the top box body. In the bypass operation, the power is supplied to the cable by the generator car, the working cable is a three-core engineering cable to replace a bypass flexible cable so as to eliminate the problem of single-core circulation, the three-core engineering cable consists of three cables, each cable is connected with an L-shaped sleeve, so that the power generated by the generator car can be transmitted to the three-core engineering cable for construction, a first cable head is used for electrically connecting the three-core engineering cable and the L-shaped sleeve, a second cable head is used for electrically connecting the first cable head so as to connect the two three-core engineering cables in series, the power generated by the generator car can be simultaneously transmitted to the two three-core engineering cables, the first cable head and the second cable head are mutually spliced, the first cable head is spliced on the L-shaped sleeve, the connection is firm, the power transmission can be kept stable in the construction engineering, the working efficiency is improved, the connecting box body can prevent the cable head from being mistakenly contacted with the connecting component in the construction process, so as to avoid danger or influence on construction caused by electric leakage.
Furthermore, the second cable head is provided with a second inserting end and a second connecting end, the second connecting end is covered and connected with the insulating cover, and the second inserting end is inserted and connected with the first connecting end. The insulating cover can play the insulating effect, avoids three-core engineering cable or the electric current of transmission cable transmission to flow out from first connecting end or second connecting end department.
Furthermore, first cable head still includes first T type head and is located first connecting piece in the first T type head, first connecting piece is set up to be in first cable head with when L type sleeve is pegged graft with L type sleeve electricity is connected. The L-shaped sleeve transmits current to the first cable head through the first connecting piece, the first connecting piece is wrapped by the first T-shaped head, and the L-shaped sleeve has good insulating performance so as to prevent electric leakage and electric shock.
Furthermore, the second cable head further comprises a second T-shaped head, a second connecting piece positioned in the second T-shaped head and a conductive piece connected with the second connecting piece, wherein the conductive piece is arranged to be electrically connected with the first connecting piece when the first cable head is spliced with the second cable head, so that the first connecting piece and the second connecting piece are electrically connected. After the first T-shaped head and the second T-shaped head are spliced, the first connecting piece is electrically connected with the conductive piece, current transmitted by the L-shaped sleeve is transmitted to the second connecting piece through the conductive piece, so that the first cable head and the second cable head are connected in series, the second connecting piece is wrapped by the second T-shaped head, and the L-shaped sleeve has good insulating property and prevents electric leakage and electric shock.
Furthermore, the L-shaped sleeve comprises an L-shaped housing and an L-shaped conductive rod located in the L-shaped housing, wherein one end of the L-shaped conductive rod is electrically connected to the power transmission cable, and the other end of the L-shaped conductive rod is electrically connected to the first cable head. The L-shaped conducting rod is wrapped in the L-shaped sleeve, the L-shaped sleeve has an insulation effect, current on the L-shaped conducting rod cannot leak, and when the current is transmitted, the current of the power transmission cable is transmitted to the L-shaped conducting rod and then transmitted to the first connecting piece from the L-shaped conducting rod.
Furthermore, a fixing sleeve for clamping the transmission cable is arranged on the outer side of the L-shaped shell. The fixed sleeve can clamp the transmission cable so as to keep the current stably transmitted in the operation process.
Furthermore, the end part of the transmission cable is provided with an electric connecting rod and an inserting ring, the electric connecting rod is inserted into the L-shaped conducting rod to keep electric connection, and the inserting ring is in interference fit with the fixed sleeve. The power connection rod is used for transmitting current, and the power transmission cable is clamped by the inserting ring after the inserting ring is in interference fit with the fixed sleeve, so that the problem of unstable power supply in the construction process is avoided.
Furthermore, the three L-shaped sleeves are provided with capacitance power-taking contact points, and the outer side of the connecting box body is provided with an electrified display electrically connected with the capacitance power-taking contact points. The electrified display can directly display whether the three L-shaped sleeves are in a normal working state or not, warn operators that equipment is electrified, and quickly judge the position of a fault when the fault occurs.
Furthermore, a semi-conducting layer is arranged outside the three L-shaped sleeves, and a shielding net is arranged in the three L-shaped sleeves. The semi-conducting layer and the shielding net are arranged to improve the electric field distribution, the surface of the L-shaped conducting rod is not smooth, the electric field concentration can be caused, in normal operation, the shielding net passes through capacitance current and is used as a passage of short-circuit current when a system is short-circuited, meanwhile, the L-shaped shell plays a role in shielding an electric field, partial discharge can occur due to gaps among the L-shaped shell, the fixed sleeve and the base, the semi-conducting layer is in good contact with the shielded L-shaped shell, the partial discharge between the insulating layer and the fixed sleeve and between the insulating layer and the base is avoided, and in addition, no matter how perfect the processing technology of the semi-conducting layer is, bending deformation, cold and hot effects and the like in operation and construction can generate an annular flat air gap between the L-shaped shell and the shielding net, the annular flat air gap has a large effect on electric field deterioration, air gap discharge is caused firstly until insulation breakdown occurs, and the shielding net can eliminate the air gap between the L-shaped shell and the semi-conducting layer.
Furthermore, the first cable head and the second cable head are provided with grounding cores connected with the connecting box body, and a grounding rod is arranged outside the connecting box body. After the first cable head is electrically connected with the L-shaped sleeve and the second cable head is electrically connected with the first cable head, the grounding core on the cable head is connected onto the connecting box body, and the grounding rod is inserted into the ground, so that the situation that the personnel and equipment safety are endangered by electrification of the connecting box body, the cable head and the L-shaped sleeve is prevented. These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The invention is further described below with reference to the accompanying drawings:
fig. 1 is a schematic structural diagram of a connection device dedicated for a 10kV bypass operation system in an embodiment of the present invention;
FIG. 2 is an internal structure diagram of a connection device dedicated for a 10kV bypass operation system according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first cable head according to a first embodiment of the invention;
fig. 4 is a schematic structural diagram of a second cable head according to a first embodiment of the invention;
FIG. 5 is a schematic structural diagram of an L-shaped sleeve according to a second embodiment of the present invention;
fig. 6 is a schematic structural view of a power transmission cable according to a third embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an L-shaped sleeve according to a third embodiment of the present invention;
FIG. 8 is a first schematic structural diagram of a connection box according to a fourth embodiment of the present invention;
fig. 9 is a schematic structural diagram of a special connection device for a 10kV bypass operation system in the fourth embodiment of the present invention;
FIG. 10 is a second schematic connection diagram of the connection box according to the fourth embodiment of the present invention;
fig. 11 is an internal structural view of a connection device dedicated to a 10kV bypass operation system in the fifth embodiment of the present invention;
fig. 12 is a schematic structural diagram of a special connection device for a 10kV bypass operation system in the fifth embodiment of the present invention.
Reference numerals:
a connecting box body 100, a first through hole 101 and a second through hole 102;
a bottom box 110, a top box 120, a fixing sheet 130, and a middle box 140;
a power transmission cable 200, a power connection rod 210 and a plug ring 220;
a three-core engineered cable 300;
a first cable head 310, a first plugging end 311, a first connecting end 312, a first T-shaped head 313 and a first connecting piece 314;
a second cable head 320, a second plug end 321, a second connection end 322, a second T-shaped head 323, a second connection member 324, and a conductive member 325;
an insulating cover 330;
a connecting assembly 400, a base 410;
the L-shaped sleeve 420, the input end 421, the output end 422, the L-shaped shell 423, the L-shaped conducting rod 424 and the jack 4241;
a semiconducting layer 430, a shielding mesh 440;
the fixing sleeve 450, the annular groove 451, the annular opening 452, the annular buckle 453, the spring 454 and the annular protrusion 455;
a capacitor power-taking contact 500 and a charged display 510;
a ground core 600, a ground rod 610.
[ detailed description ] embodiments
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present invention, unless otherwise expressly specified or limited, "above" or "below" a first feature may mean that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The first embodiment is as follows:
referring to fig. 1 to 4, the connecting device special for a 10kV bypass operation system includes a connecting box 100 and a connecting assembly 400 located in the connecting box 100 and used for maintaining an electric connection between a transmission cable 200 and at least one three-core engineering cable 300, where the connecting assembly 400 includes a base 410 and three L-shaped sleeves 420 fixed on the base 410, the three L-shaped sleeves 420 have an input end 421 and an output end 422, the input end 421 is electrically connected to the transmission cable 200, the output end 422 is electrically connected to a first cable head 310, the first cable head 310 has a first plugging end 311 and a first connecting end 312, the first plugging end 311 is plugged with the output end 422, the first connecting end 312 covers an insulating cover 330 or is plugged with a second cable head 320, and the first cable head 310 and the second cable head 320 can be electrically connected to the three-core engineering cable 300.
In the bypass operation, the power is supplied to the cable by the power generation car, the working cable is a three-core engineering cable 300, the three-core engineering cable 300 replaces a bypass flexible cable to eliminate the problem of single-core circulation, the three-core engineering cable 300 consists of three cables, each cable is connected with an L-shaped sleeve 420, so that the power generated by the power generation car can be transmitted to the three-core engineering cable 300 for construction, the first cable head 310 is used for electrically connecting the three-core engineering cable 300 and the L-shaped sleeve 420, the second cable head 320 is used for electrically connecting the first cable head 310 to connect the two three-core engineering cables 300 in series, the power generated by the power generation car can be simultaneously transmitted to the two three-core engineering cables 300, the first cable head 310 and the second cable head 320 are mutually inserted, the first cable head 310 is inserted on the L-shaped sleeve 420, the connection is firm, the power transmission can be kept stable in the construction engineering, and the working efficiency is improved, the connection box 100 can prevent a cable head or the connection assembly 400 from being touched by mistake during construction, so that danger caused by electric leakage or influence on construction can be avoided.
Referring to fig. 4, the second cable head 320 has a second plug end 321 and a second connection end 322, the second connection end 322 is covered and connected with the insulation cover 330, the second plug end 321 is plugged with the first connection end 312, when the L-shaped sleeve 420 is connected with only the first cable head 310, the first plug end 311 is electrically connected with the output end 422, the first connection end 312 is covered and connected with the insulation cover 330 to prevent leakage, when the second cable head 320 is connected in series, the second plug end 321 is plugged with the first connection end 312, the second connection end 322 is covered and connected with the insulation cover 330 to prevent leakage, the first cable head 310 is connected in series with the second cable head 320, the first cable head 310 and the second cable head 320 further have connection terminals, and the three-core engineering cable 300 is inserted into the connection terminals to maintain electrical connection with the cable heads.
Referring to fig. 3, the first cable head 310 has the following structure: the first cable head 310 comprises a first T-shaped head 313 and a first connector 314, wherein the first connector 314 is wrapped in the first T-shaped head 313;
referring to fig. 4, the second cable head 320 has a structure of: the second cable head 320 includes a second T-shaped head 323, a second connector 324, and a conductive member 325, the second connector 324 being encased within the second T-shaped head 323, the conductive member 325 being connected to the second connector 324 at the second mating end 321.
The first connecting piece 314 and the second connecting piece 324 are both metal bodies and have good conductive performance, when the first cable head 310 is spliced with the L-shaped sleeve 420, the first connecting piece 314 is electrified, and the three-core engineering cable 300 electrically connected with the first connecting piece 314 is electrified; the conductive member 325 connected to the second connector 324 also has good conductive performance, when the second cable head 320 is plugged into the first cable head 310, the conductive member 325 is electrically connected to the first connector 314 to transmit current to the second connector 324, the three-core engineering cable 300 electrically connected to the second connector 324 is powered on, the first T-shaped head 313 and the second T-shaped head 323 are made of insulating materials, and have good insulating performance, and the current wrapped inside the first connector 314 and the second connector 324 cannot leak outside.
Example two:
this embodiment specifically describes the structure of the L-shaped sleeve 420, specifically: referring to fig. 5, the L-shaped sleeve 420 includes an L-shaped housing 423 and an L-shaped conductive rod 424 disposed inside the L-shaped housing 423, the L-shaped conductive rod 424 is wrapped inside the L-shaped sleeve 420, and the L-shaped sleeve 420 has excellent insulating property, so that current on the L-shaped conductive rod 424 does not leak out.
Three L-shaped sleeves 420 are arranged on a base 410 side by side, a semi-conducting layer 430 is arranged outside the three L-shaped sleeves 420, a shielding net 440 surrounding the L-shaped conducting rod 424 is arranged in each L-shaped sleeve 420, electric field distribution is improved by arranging the semi-conducting layer 430 and the shielding net 440, the semi-conducting layer 430 is an outer shielding layer, the shielding net 440 is an inner shielding layer, the surface of the L-shaped conducting rod 424 is not smooth, electric field concentration can be caused, in normal operation, the shielding net 440 passes through capacitance current, when a system is in short circuit, the short circuit current is used as a channel of short circuit current, meanwhile, the function of shielding the electric field is also realized, gaps exist between the L-shaped shell 423 and the fixed sleeve 450 and the base 410, partial discharge can occur, the semi-conducting layer 430 is in good contact with the shielded L-shaped shell 423, partial discharge can be avoided between the insulating layer and the fixed sleeve 450 and the base 410, and no matter how perfect the processing technology of the semi-conducting layer 430 is, bending deformation, cold and hot effects and the like in operation and construction of the cable can generate an annular flat air gap between the L-shaped shell 423 to a large extent, the annular flat air gap has great effect on electric field deterioration, air gap discharge is caused firstly until insulation breakdown is caused, and the shielding net 440 can eliminate the air gap between the L-shaped shell 423 and the semi-conducting layer 430.
The embodiment does not refer to the first embodiment.
Example three:
the present embodiment specifically illustrates a connection relationship between the power transmission cable 200, the L-shaped sleeve 420, and the first cable head 310, specifically: referring to fig. 6 and 7, the end of the power transmission cable 200 is provided with a power connection rod 210, two insertion holes 4241 are provided at both ends of the L-shaped conductive rod 424, one insertion hole 4241 is in a vertical direction, one insertion hole 4241 is in a horizontal direction, the power transmission cable 200 enters from the horizontal direction of the connection box 100 to be electrically connected with the L-shaped sleeve 420, and the first cable head 310 and the second cable head 320 are connected in series in the vertical direction and are inserted into the L-shaped sleeve 420.
When the power transmission cable 200 is plugged with the L-shaped sleeve 420, the power connection rod 210 is inserted into the plug hole 4241 in the horizontal direction on the L-shaped conducting rod 424 and keeps good contact; when the first cable head 310 is plugged into the L-shaped sleeve 420, a part of the L-shaped housing 423 in the vertical direction of the L-shaped sleeve 420 is located in the first plugging end 311 of the first cable head 310, and the first connector 314 is inserted into the insertion hole 4241 in the vertical direction of the L-shaped conductive rod 424.
In addition, the present embodiment further specifically describes a connection structure between the power transmission cable 200 and the L-shaped sleeve 420, specifically: referring to fig. 6, the fixing sleeve 450 for clamping the power transmission cable 200 is disposed outside the L-shaped sleeve 420, and the end of the power transmission cable 200 is further provided with the plugging ring 220 surrounding the outside of the power receiving rod 210.
Referring to fig. 7, the fixing sleeve 450 is provided with a circular groove 451 and a circular opening 452 communicated with the circular groove 451, the diameter of the circular opening 452 is smaller than that of the circular groove 451, a circular buckle 453 is arranged in the circular opening 452, the circular buckle 453 is connected with the end of the circular groove 451 through a spring 454, a circular protrusion 455 protruding out of the surface of the circular buckle 453 is arranged on the outer side of the circular buckle 453, the spring 454 applies a pushing force to the circular buckle 453 to move towards the circular opening 452, and the circular protrusion 455 is clamped at the joint of the circular groove 451 and the circular opening 452 to prevent the circular buckle 453 from moving out of the circular opening 452.
When the power transmission cable 200 is plugged with the input end 421 of the L-shaped sleeve 420, the plugging ring 220 is inserted into the annular buckle 453 and is in interference fit with the annular buckle 453, when the plugging ring 220 is matched with the annular buckle 453, an acting force for pushing the annular buckle 453 to move into the annular groove 451 is provided, the annular buckle 453 is prevented from moving under the action of the thrust of the spring 454, so that the plugging ring 220 can be inserted into the annular buckle 453, and the power transmission cable 200 is fixed at the input end 421 of the L-shaped sleeve 420 under the clamping action of the annular buckle 453 on the plugging ring 220, and current can be stably transmitted.
The present embodiment does not describe contents referring to the above embodiments.
Example four:
the present embodiment specifically describes the structure of the connection box 100, specifically: referring to fig. 8 to 10, the height of the connection box 100 is related to the number of cable heads connected to the L-shaped sleeve 420, when the L-shaped sleeve 420 is connected to only the first cable head 310, the connection box 100 includes a bottom box 110 and a top box 120, the bottom box 110 and the top box 120 are connected by a fixing piece 130, the fixing piece 130 is located at the connection position of the bottom box 110 and the top box 120, one end of the fixing piece is fixed on the bottom box 110 by a screw, the other end of the fixing piece is fixed on the top box 120 by a screw, the bottom box 110 is provided with three first through holes 101 facilitating the extension and contraction of the transmission cable 200, and the bottom box 110 and the top box 120 further define three second through holes 102 accommodating three cables in the three-core engineering cable 300;
when the second cable head 320 is further arranged in the connecting box 100, the connecting box 100 comprises a bottom box 110, a middle box 140 and a top box 120, the bottom box 110 is connected with the middle box 140, the middle box 140 is connected with the top box 120 through a fixing sheet 130, the fixing sheet 130 connecting the bottom box 110 with the middle box 140 has one end fixed on the bottom box 110 through a screw and the other end fixed on the middle box 140 through a screw, the fixing sheet 130 connecting the middle box 140 with the top box 120 has one end fixed on the middle box 140 through a screw and the other end fixed on the top box 120 through a screw;
the bottom case 110 has the same shape as the top case 120 and is a rectangular box lacking a top surface or a bottom surface, the bottom case 110 has a height greater than that of the top case 120 to accommodate the L-shaped socket 420 and the base 410, and the middle case 140 is a rectangular box lacking a top surface and a bottom surface.
The present embodiment does not describe contents referring to the above embodiments.
Example five:
referring to fig. 11 and 12, in this embodiment, capacitors are disposed on the three L-shaped sleeves 420 to obtain the electrical contact 500, an electrified display 510 electrically connected to the capacitors is disposed outside the connection box 100, three indicator lamps are disposed on the electrified display 510, the electrified display 510 is electrically connected to the capacitors on the three L-shaped sleeves 420, the three indicator lamps correspond to the three L-shaped sleeves 420, so as to visually display whether the three L-shaped sleeves 420 are in a normal working state, and warn an operator that the device is electrified, and when the device is in a normal working state, the indicator lamps emit stable indicator lights, and when a fault occurs, which indicator lamp is not on indicates which L-shaped sleeve 420 fails, which is convenient to maintain.
Referring to fig. 12, in addition, the first cable head 310 and the second cable head 320 are provided with a grounding core 600 connected to the connection box 100, and a grounding rod 610 is provided outside the connection box 100, so that when the first cable head 310 is electrically connected to the L-shaped sleeve 420 and the second cable head 320 is electrically connected to the first cable head 310, the grounding core 600 on the cable head is connected to the connection box 100, and the grounding rod 610 is inserted into the ground, thereby preventing the connection box 100, the cable heads and the L-shaped sleeve 420 from being electrified to endanger the personal safety and the equipment safety.
The present embodiment does not describe contents referring to the above embodiments.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the invention as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (7)
1.10kV bypass operation system special connecting device, its characterized in that: the three-core engineering cable connection device comprises a connection box body and a connection assembly positioned in the connection box body and used for keeping a transmission cable and at least one three-core engineering cable to be electrically connected, wherein the connection assembly comprises a base and three L-shaped sleeves fixed on the base, the three L-shaped sleeves are provided with input ends and output ends, the input ends are electrically connected with the transmission cable, the output ends are electrically connected with a first cable head, the first cable head is provided with a first plug end and a first connection end, the first plug end is plugged with the output ends, the first connection end is covered with an insulation cover or plugged with a second cable head, the first cable head and the second cable head can be electrically connected with the three-core engineering cable, the three L-shaped sleeves are provided with capacitance electricity-taking contacts, the outer side of the connection box body is provided with a live display electrically connected with the capacitance electricity-taking contacts, and the outer sides of the three L-shaped sleeves are provided with semi-conducting layers, a shielding net is arranged in the L-shaped sleeve, grounding wires connected with the connecting box body are arranged on the first cable head and the second cable head, and a grounding rod is arranged outside the connecting box body;
the connecting box body comprises a bottom box body and a top box body, if the first connecting end is connected with a second cable head in an inserting mode, a middle box body is further arranged between the bottom box body and the top box body.
2. The special connecting device for the 10kV bypass operation system according to claim 1, wherein: the second cable head is provided with a second inserting end and a second connecting end, the second connecting end is covered and connected with the insulating cover, and the second inserting end is inserted and connected with the first connecting end.
3. The special connecting device for the 10kV bypass operation system according to claim 2, wherein: first cable head still includes first T type head and is located first connecting piece in the first T type head, first connecting piece is set up to be in first cable head with when L type sleeve is pegged graft with L type sleeve electricity is connected.
4. The special connecting device for the 10kV bypass operation system according to claim 3, wherein: the second cable head further comprises a second T-shaped head, a second connecting piece in the second T-shaped head and a conductive piece connected with the second connecting piece, wherein the conductive piece is arranged to be electrically connected with the first connecting piece when the first cable head is spliced with the second cable head, so that the first connecting piece and the second connecting piece are kept to be electrically connected.
5. The special connecting device for the 10kV bypass operation system according to claim 1, wherein: the L-shaped sleeve comprises an L-shaped shell and an L-shaped conducting rod positioned in the L-shaped shell, one end of the L-shaped conducting rod is electrically connected with the power transmission cable, and the other end of the L-shaped conducting rod is electrically connected with the first cable head.
6. The special connecting device for the 10kV bypass operation system according to claim 5, wherein: and a fixing sleeve for clamping the transmission cable is arranged on the outer side of the L-shaped shell.
7. The special connecting device for 10kV bypass operation system according to claim 6, wherein: the end part of the power transmission cable is provided with a power connection rod and an insertion ring, the power connection rod is inserted into the L-shaped conducting rod to be electrically connected, and the insertion ring is in interference fit with the fixed sleeve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019108742816 | 2019-09-17 | ||
| CN201910874281 | 2019-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110783880A CN110783880A (en) | 2020-02-11 |
| CN110783880B true CN110783880B (en) | 2021-12-28 |
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Family Applications (1)
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| CN201911132022.2A Active CN110783880B (en) | 2019-09-17 | 2019-11-19 | Special connecting device for 10kV bypass operation system |
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| CN201893536U (en) * | 2010-12-09 | 2011-07-06 | 广东阿尔派电力科技股份有限公司 | Cable branch box |
| CN202906215U (en) * | 2012-11-08 | 2013-04-24 | 成都科星电力电器有限公司 | Switch for cable branch box |
| CN203367844U (en) * | 2013-07-12 | 2013-12-25 | 广西银河迪康电气有限公司 | Cable branching cabinet air box |
| CN203660490U (en) * | 2014-01-20 | 2014-06-18 | 北京国电瑞风电气有限公司 | Cable branch box |
| CN108598828B (en) * | 2018-05-18 | 2019-07-30 | 绍兴文理学院元培学院 | A kind of paired cable T connects formula installation method |
| CN209088447U (en) * | 2018-10-10 | 2019-07-09 | 珠海许继电气有限公司 | A kind of outlet casing tube with isolation baffle plate |
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