CN110011284B - Small-size switching station prevents electric wire netting structure of tripping operation of overriding suitable for urban residence - Google Patents
Small-size switching station prevents electric wire netting structure of tripping operation of overriding suitable for urban residence Download PDFInfo
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- CN110011284B CN110011284B CN201910230510.0A CN201910230510A CN110011284B CN 110011284 B CN110011284 B CN 110011284B CN 201910230510 A CN201910230510 A CN 201910230510A CN 110011284 B CN110011284 B CN 110011284B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
- H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/28—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for meshed systems
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Abstract
The invention discloses a power grid structure for preventing override trip of a small-sized switch station, which is suitable for urban residences, and comprises the following components: the invention realizes the matching of the square box of the circuit breaker and the wire cap crimping device, and the wire cap shaft lever cover is spliced through a power transformation wire, when the impact current is operated by mistake, the insulation folded plate drives the rotary deflection wire end to form the effect of open circuit protection, a hood square groove of a closing contact is erected on each air switch brake of the switch station, so that a jumper wire switching circuit to be tripped out in a grade-by-grade mode obtains the filtering and shielding effect of the pin column cylinder closed insulation arc extinguishing, the I-shaped sectional column rotates to form the sectional type processing effect of the insulation folded plate, the single-pair single-pipeline embedded carding protection is achieved, the maintenance time-division wire detection is convenient, and when the tripping is realized, the armature frame on-off attraction has high definition, and the safe and accurate tripping protection circuit effect of the urban residential power grid is guaranteed.
Description
Technical Field
The invention relates to a power grid structure for preventing override trip of a small-sized switch station, which is suitable for urban residences and belongs to the field of urban power grid structures.
Background
Work between the electric substation that urban house distributes and the switchyard carries out distribution transmission through the high tension line tower and supplies with, this framework demand to urban power network is very strict, and the switching station is the master brake that docks one by one and the collection of electric substation communicates demand precision height, and the security when letting people's power consumption demand obtains guaranteeing, and the public shortcoming of treating optimizing of prior art has:
because the time limit setting value of the switch station is very small, the switch station trips in a shunting-removing mode, and once the substation trips before the switch station and the fault current is cut off, the switch of the switch station cannot trip due to loss of the brake-separating current; at the moment, when the substation outlet switch is reclosed, the substation outlet switch is closed on a fault line, so that reclosing failure is caused, when a line of a switching station has a fault, the switching station does not trip, and the substation outlet switch trips to cause a switching-on impact current to generate a false override trip phenomenon, and other switches of the switching station are also simultaneously influenced to perform linkage trip to cause circuit disorder.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a small-sized power grid structure for preventing override tripping of a switching station, which is suitable for urban residences, so that the problem that the switching station trips in a shunting-removing mode due to the fact that the time limit setting value of the switching station is very small, and once a substation trips before the switching station and a fault current is cut off, a switch of the switching station cannot trip due to loss of a brake-separating current is solved; at the moment, when the substation outlet switch is reclosed, the substation outlet switch is closed on a fault line, so that reclosing failure is caused, when a line of a switching station has a fault, the switching station does not trip, and the substation outlet switch trips to cause a switching-on impact current to generate a false override trip phenomenon, so that other switches of the switching station are simultaneously influenced to trip in a linkage manner, and the problem of circuit disorder is caused.
In order to achieve the purpose, the invention is realized by the following technical scheme: a power grid structure for preventing override trip of small-sized switch station suitable for urban residence, the structure includes: the wire distribution box comprises a junction box, a digital display, a differential relay, a magnetic base button, a shell frame cover, a circuit breaker square box, a storage battery box and a wire cap crimping device, wherein a pin plate at the rear side of the digital display and the rear side of the differential relay is electrically connected with pins of the storage battery box through an integrated plate of the wire cap crimping device, the bottom surface of the junction box and the top surface of the storage battery box are tightly attached to the upper side and the lower side of the circuit breaker square box respectively, the wire cap crimping device is inserted and embedded in the rear side of the interior of the junction box, the digital display and the differential relay are located on the same vertical plane and are inserted and embedded in the front side of the junction box, the magnetic base button is provided with more than two horizontal lines which are arranged in a straight line and are mechanically connected with the circuit breaker square box, the junction box, the circuit breaker square box and the storage battery box are all installed in the shell frame cover, the wire cap shaft lever cover is mechanically connected with a through hole of the insulation folded plate through a rotating shaft, the wire cap shaft lever cover and the through hole are vertically arranged in a straight line, a rotating wheel of the wire cap shaft lever cover is buckled with a wire end in the middle section of the insulation folded plate, the right end of the power transformation wire is electrically connected with the left side of the PC integrated plate, the I-shaped sectional column vertically penetrates through the inside of the wire cap shaft lever cover, the bottom end of the I-shaped sectional column is mechanically connected with a roller disc of the roller motor through the bottom surface of the helical gear, the helical gear is embedded under the bottom end of the I-shaped sectional column, the I-shaped sectional column is embedded in the rear side inside the branch box, and the PC integrated plate is electrically connected with the storage battery box.
In order to optimize the technical scheme, the method further comprises the following steps:
as a further improvement of the invention, the square box of the circuit breaker comprises an iron plate sliding frame, a top plate, a middle partition box body, an air switch brake and a armature frame, wherein the iron plate sliding frame is in clearance fit with the top plate, a pull rope of the iron plate sliding frame is mechanically connected with the upper left corner of the armature frame through a rotating plate of the air switch brake, and the iron plate sliding frame, the top plate, the air switch brake and the armature frame are all nested on the left side of the middle partition box body.
As a further improvement of the invention, the wire cap shaft rod cover comprises a cap square groove, a concave end shaft rod and a rolling wheel, the left end of the concave end shaft rod is inserted and embedded on the right side of the axle center of the rolling wheel, the cap square groove is embedded and embedded on the left end of the concave end shaft rod, and the outer surface of the rolling wheel is movably connected with the inside of the cap square groove.
As a further improvement of the invention, the insulation folded plate comprises three pin cylinders, two ball clamping and pressing devices, two crimping plates and a thick frame ring, wherein the pin cylinders are vertically arranged in a straight line and are inserted and embedded in the upper left corners of the two crimping plates, the two crimping plates and the thick frame ring are in interference fit, and the two ball clamping and pressing devices are arranged in the two crimping plates.
As a further improvement of the invention, the pin column casing is composed of a pin square piece, a sleeve groove, a micro single chip microcomputer, a column casing shell and a copper wire, wherein the pin square piece is nested on the top end of the sleeve groove, the pin square piece is electrically connected with the copper wire through the micro single chip microcomputer, and the sleeve groove and the column casing shell are nested into a whole and the axes of the sleeve groove and the column casing shell are collinear.
As a further improvement of the invention, the ball clamping and pressing device comprises a trapezoidal reverse buckling plate, a cavity ball shell, a swing rod and a jacking fan plate, wherein the bottom end of the trapezoidal reverse buckling plate is inserted and embedded on the top of the cavity ball shell, the trapezoidal reverse buckling plate is mechanically connected with the jacking fan plate through the swing rod, and the jacking fan plate is in clearance fit with the cavity ball shell.
As a further improvement of the invention, the trapezoid reverse buckling plate is of a plate structure with the bottom edge of the isosceles trapezoid folded, and the folding edge block at the bottom can form the buckling effect of opposite vertex and left and right sides of the corner, so that the clamping and sticking effects of hinging and fixing are facilitated.
As a further improvement of the invention, the cylindrical shell is an arc cavity cylindrical structure with a circular truncated cone groove at the bottom end, the circular truncated cone arc groove is convenient for buffering an electric power storage inner ring during discharging, prevents the impact current from generating misoperation during switching power failure, and effectively covers and guides a stable circuit.
As a further improvement of the invention, the double-folded plate is a composite plate block structure welded by double Z-shaped plates, the upper concave plate and the lower concave plate form a deflection effect of a thick plate and a thin plate, so that when the center is fixed, the whole insulating plate can isolate the effects of other line tubes, the jumper discharge condition of an inner line wire is avoided, and the single-to-single clear electrifying effect of a carding line is formed.
As a further improvement of the invention, the I-shaped sectional column is a long connecting shaft rod structure formed by welding I-shaped short columns into a whole, each I-shaped groove is convenient to be matched with a transverse shaft and a longitudinal shaft to form friction transmission with a circular section, and the vertically extending edges prevent the transverse shaft from slipping, so that a pressing buckle blocking effect is formed, and efficient twisting action is promoted.
Advantageous effects
The invention relates to a power grid structure for preventing override trip of a small-sized switch station suitable for urban residences, which is characterized in that when a circuit is distributed to the switch station of the urban residential area by a piece area substation, a branch box, a breaker square box and a storage battery box are distributed in a shell frame cover in a gathering and butt joint mode through a PC integrated board of a wire cap crimping device to achieve the general frame transmission effect of adaptive adjustment, current is fed back to a digital display and a differential relay of the branch box through the storage battery box, pin terminals penetrate through a wire cap shaft lever cover in the process of butt joint one by one through a power transformation lead to achieve the receiving and protecting effect of an intermediate circuit, when impact current of a substation generates misoperation to form under-voltage or overload conditions, a roller motor is triggered to be meshed with a helical gear to pull an I-shaped sectional column to rotate, so that an insulation folded plate is subjected to linkage rotation of a concave end shaft lever friction I-shaped sectional column in a cover cap square groove, the middle is pinched off, the discharge of the broken line end is carried by the butt joint of the pin column cylinder, then the concave end shaft lever is attached by the auxiliary clip of the ball clip pressing device, the concave end shaft lever is rotationally linked to the double-folding-plate to rotate on the right side through the thick frame ring, the conductive folded angle variable-current conducting wire embedded in the square groove of the pressing cover cap of the pin square sheet and the sleeve groove is formed, the micro-singlechip integrally-woven circuit is converged into the copper wire in the column cylinder shell to form the radiation electrode effect, the current is insulated and separated by the double-folding-plate, the discharge danger is reduced by slow consumption, the accurate breaking of the single-strand conducting wire to the single terminal is formed, the mixed-flow condition of the inner circuit is avoided, the iron plate sliding frame which is tripped and communicated with the middle-plate box body is more accurate, the matching efficiency of the air switch brake and the armature frame at the bottom of the top plate is calibrated, the rotation of the concave end shaft lever is attached to the, then the swing rod pulls the top pressing fan plate to swing right to form a force counteracting effect of the same inner corner, after tripping, resetting is carried out by pressing a magnetic seat button to pull down an air switch brake, the override tripping phenomenon is improved, and the effect of carrying single-pair monostable transmission of a substation and a switching station is optimized.
The invention has the following advantages after operation:
the application circuit breaker square box is matched with a wire cap crimping device, and a wire cap shaft lever cover is spliced through a power transformation wire, when an impact current is mistakenly operated, an insulation folded plate drives to rotate a deflection wire end to form a circuit breaking protection effect, cover cap square grooves of closing contacts are erected on each air switch brake of a switch station, a jumper wire transfer circuit to be subjected to override tripping is enabled to obtain a filtering and shielding effect of pin column cylinder sealing insulation arc extinguishing, an I-shaped sectional column is enabled to rotate to form a sectional type processing effect of the insulation folded plate, single-pair single-pipeline embedded carding protection is achieved, the winding condition of a spool drum is avoided, line splitting detection is also facilitated during maintenance, when tripping is achieved, the on-off attracting and attracting definitiveness of an armature frame is high, and the safe and accurate tripping protection circuit effect of an urban residential power grid is guaranteed.
Drawings
Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention when taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a power grid structure for preventing override trip of a small-sized switching station suitable for urban residences.
Fig. 2 is a detailed sectional structure diagram of the square box of the circuit breaker of the invention.
Fig. 3 is a schematic cross-sectional structural view of the circuit breaker square box and wire cap crimping device in a working state.
Fig. 4 is a perspective structural view of the wire cap shaft cover in a working state.
Fig. 5 is a schematic side sectional view of the insulation flap in an operational state according to the present invention.
Fig. 6 is a schematic perspective structural view of the pin barrel in a working state according to the present invention.
FIG. 7 is a schematic cross-sectional view showing the inner structure of the ball-clamping and pressing device according to the present invention in an operating state.
Description of reference numerals: junction box-1, digital display-2, differential relay-3, magnetic base button-4, casing frame cover-5, breaker square box-6, accumulator box-7, wire cap press-connection device-8, iron plate sliding frame-61, top plate-62, middle partition box-63, air switch brake-64, armature frame-65, PC integrated plate-83, I-shaped sectional column-84, transformation wire-85, helical gear-86, roller motor-87, cover cap square groove-811, concave end shaft lever-812, rolling wheel-813, pin column cylinder-821, ball press-fastener-822, double folding plate-823, thick frame ring-824, pin square-8211, sleeve groove-8212, micro single-chip microcomputer-8213, column cylinder shell-8214, micro-cylinder shell-8214, and micro-cylinder press-fastener-822, Copper wire-8215, trapezoidal reverse buckle-8221, hollow spherical shell-8222, swing rod-8223 and top pressure fan plate-8224.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 7, the present invention provides a power grid structure for preventing override trip of a small-sized switching station suitable for urban residences, which comprises: the digital switch cabinet comprises a junction box 1, a digital display 2, a differential relay 3, a magnetic base button 4, a shell frame cover 5, a breaker square box 6, a storage battery box 7 and a wire cap crimping device 8, wherein pin plates at the rear sides of the digital display 2 and the differential relay 3 are electrically connected with pins of the storage battery box 7 through an integrated plate of the wire cap crimping device 8, the bottom surface of the junction box 1 and the top surface of the storage battery box 7 are respectively tightly attached to the upper side and the lower side of the breaker square box 6, the wire cap crimping device 8 is inserted and embedded in the rear side inside the junction box 1, the digital display 2 and the differential relay 3 are positioned on the same vertical surface and are inserted and embedded in the front side of the junction box 1, the magnetic base button 4 is provided with more than two levels and arranged into a straight line and is mechanically connected with the breaker square box 6, and the junction box 1, the breaker square box 6 and the storage battery box 7 are all installed inside the, the wire cap crimping device 8 is provided with a wire cap shaft lever cover 81, an insulation folded plate 82, a PC integrated plate 83, I-shaped sectional columns 84, a power transformation lead 85, a bevel gear 86 and a roll shaft motor 87, wherein the wire cap shaft lever cover 81 is mechanically connected with through holes of the insulation folded plate 82 through a rotating shaft, the wire cap shaft lever cover 81 and the insulation folded plate 82 are both provided with more than two through holes and are vertically arranged in a straight line, a rotating wheel of the wire cap shaft lever cover 81 is buckled with a wire end in the middle section of the power transformation lead 85, the right end of the power transformation lead 85 is electrically connected with the left side of the PC integrated plate 83, the I-shaped sectional columns 84 vertically penetrate through the inside of the wire cap shaft lever cover 81, the bottom ends of the I-shaped sectional columns 84 are mechanically connected with a roller disc of the roll shaft motor 87 through the bottom surfaces of the bevel gear 86, the bevel gear 86 is nested below the bottom ends of the I-shaped sectional columns 84, the I-shaped sectional columns, i-shaped sectional columns 84 are long connecting rod structures which are formed by welding I-shaped multi-section short columns into a whole, each section of I-shaped groove is convenient to be matched with a transverse shaft and a longitudinal shaft to form friction transmission of a circular section, the edge extending up and down prevents the transverse shaft from slipping, a pressing buckle blocking effect is formed, efficient twisting action is promoted, a square box 6 of the circuit breaker is composed of an iron plate sliding frame 61, a top plate 62, a middle partition box body 63, an air switch gate 64 and an armature frame 65, the iron plate sliding frame 61 and the top plate 62 are in clearance fit, a pull rope of the iron plate sliding frame 61 is mechanically connected with the upper left corner of the armature frame 65 through a rotating plate of the air switch gate 64, and the iron plate sliding frame 61, the top plate 62, the air switch gate 64 and the armature frame 65 are.
Referring to fig. 4, the wire cap shaft lever cover 81 is composed of a cap square groove 811, a concave end shaft lever 812 and a rolling wheel 813, the left end of the concave end shaft lever 812 is inserted and embedded on the right side of the axis of the rolling wheel 813, the cap square groove 811 is embedded at the left end of the concave end shaft lever 812, the outer surface of the rolling wheel 813 is movably connected with the inside of the cap square groove 811, a power transformation wire 85 subsection port in the cap square groove 811 is turned on or pressed down by the rolling wheel 813 to form an open circuit, a synchronous cut-off effect of one-column multi-concave end shaft lever 812 linkage is realized by the h-shaped section column 84, the power failure efficiency is high, and the current introduced by a power transformation substation is directly conducted to the switching station to be switched on or switched off without causing a jumper situation.
Referring to fig. 5, the insulation flap 82 is composed of a pin barrel 821, a ball clamp 822, a double-flap plate 823, and a thick frame ring 824, the pin cylinder 821 is provided with three pins which are vertically arranged in a straight line and are all inserted and embedded in the upper left corner of the double-folding-edge plate 823, the double-folding-edge plate 823 is in interference fit with the thick frame ring 824, two ball clamping and pressing devices 822 are arranged and are arranged inside the double-folding-edge plate 823, the double-folded plate 823 is a composite plate block structure welded by double-Z-shaped plates, the upper concave plate and the lower concave plate form a deflection effect of a thick plate and a thin plate, and when the center is conveniently fixed, the whole insulating board can isolate other line tubes, avoid the jumper discharge of the inner line wire, form the single-to-single clear electrifying effect of the carding line, the double-folding-edge plate 823 forms an isolation discharge effect with small-angle inner grooves and a line distribution portion which is rotationally wrapped along the thick frame ring 824.
Referring to fig. 6, the pin cylinder 821 includes a pin square 8211, a sleeve groove 8212, a micro-singlechip 8213, a cylinder housing 8214, and a copper wire 8215, the pin square 8211 is nested on the top end of the sleeve groove 8212, the pin square 8211 is electrically connected to the copper wire 8215 through the micro-singlechip 8213, the sleeve groove 8212 and the cylinder housing 8214 are nested together and have collinear axes, the cylinder housing 8214 is an arc cavity cylinder structure with a circular platform groove at the bottom end, the circular platform arc groove facilitates buffering of an electric storage inner ring during discharging, prevents an impact current from being mistakenly moved during switching power off, effectively guides a stabilizing circuit, absorbs electric quantity of the pin square 8211 and the micro-singlechip 8213 through the cylinder housing 8214, and fills the copper wire 8215 with the electric storage for radiation power consumption, forms a buffering and blocking effect on the open-circuit current, and avoids a situation of impact and misoperation of a large current.
Referring to fig. 7, the ball clamping and pressing device 822 includes a trapezoidal reverse fastening plate 8221, a cavity spherical shell 8222, a swing rod 8223, and a pressing fan plate 8224, the bottom end of the trapezoidal reverse fastening plate 8221 is inserted and embedded on the top of the cavity spherical shell 8222, the trapezoidal reverse fastening plate 8221 is mechanically connected with the pressing fan plate 8224 through the swing rod 8223, the pressing fan plate 8224 and the cavity spherical shell 8222 are in clearance fit, the trapezoidal reverse fastening plate 8221 is a plate structure with a folded isosceles trapezoid bottom edge, an anti-slip effect is formed by folding edge blocks at the bottom, a clamping and fixing effect of hinging is facilitated, and when the trapezoidal reverse fastening plate 8221 is subjected to a right slip condition of the concave end shaft lever 812, the swing rod 8223 drives the pressing fan plate 8224 to deflect rightwards to form a double-resistance force anti-slip effect with the same inner angle as the other double-resistance force anti-slip effect.
The working process is as follows: when a line is distributed to a switching station of a city residential area by a piece area substation, the PC integrated board 83 of the line cap crimping device 8 forms distribution of the line distributing box 1, the breaker square box 6 and the storage battery box 7 in the shell frame cover 5 in a gathering and butt joint mode to achieve the general frame transmission effect of adaptive adjustment, current is fed back to the digital display 2 and the differential relay 3 of the line distributing box 1 through the storage battery box 7, pin terminals of the line distributing box 1 are butted through the line cap shaft lever cover 81 one by one through the power transformation lead 85 during the period, the receiving and protecting effect of an intermediate line is achieved, when the impact current of the substation generates an undervoltage or overload condition, the roller motor 87 is triggered to be meshed with the bevel gear 86 to pull the I-shaped sectional column 84 to rotate, so that the insulation folded plate 82 is subjected to linkage rotation of the I-shaped sectional column 84 by the concave end 812 in the cover cap square groove 811, and the voltage of the power transformation lead, the middle is pinched off, the broken line end discharge is supported by the pin cylinder 821, then the ball pinch press 822 is used to press and stick to the concave end shaft 812, the concave end shaft 812 rotates to link the double-folding board 823 to pass through the thick frame ring 824 and rotate on the right side, the pin square plate 8211 and the sleeve groove 8212 are formed to press and stick to the cover cap square groove 811, the conduction folding angle transformation wire 85 is embedded, the micro-singlechip 8213 is integrated, the circuit is converged into the copper wire 8215 in the cylinder shell 8214, the radiation electrode effect is formed, the current is insulated and separated by the double-folding board 823, the discharge danger is reduced by slow consumption, the accurate breaking of the single terminal by the single wire is formed, the mixed flow condition of the inner circuit triggered by the jumper arc, the carriage 61 which is tripped and communicated with the middle box 63 is more accurate, the air switch brake 64 at the bottom of the top plate 62 is matched with the armature frame 65, the concave end 812 rotates to stick to the cavity shell 8222 through the trapezoidal reverse buckling board 8221, then the swing rod 8223 pulls the jacking fan plate 8224 to swing right to form a counteracting force effect of the same inner corner, after tripping, resetting is carried out by pressing the magnetic base button 4 to pull down the air switch brake 64, the override tripping phenomenon is improved, and the receiving single-pair monostable transmission effect of a substation and a switching station is optimized.
The invention achieves the effect of protecting the broken circuit by matching the square box 6 of the circuit breaker with the wire cap crimping device 8 and inserting the wire cap shaft lever cover 81 through the transformation wire 85, the insulation folded plate 82 drives the rotating deflection wire end to form the broken circuit protection effect when the impact current is misoperated, the cover cap square groove 811 of the closing contact is erected on each air switch gate 64 of the switching station, the jumper wire switching circuit which is going to trip in an override way obtains the filtering and shielding effect of the pin column cylinder 821 for sealing and insulating arc extinguishing, the I-shaped subsection column 84 rotates to form the sectional type processing effect of the insulation folded plate 82, the carding protection of single-pair single-pipeline embedded is achieved, the winding condition of a spool is avoided, the wire division detection is convenient during maintenance, the on-off suction definition of the armature frame 65 is high when the tripping is realized, the safe and accurate tripping protection circuit effect of the urban residential power grid is ensured, and the time limit setting value of the switching station is very small is solved, the switch station trips in a shunting-removing mode, and once the substation trips before the switch station and the fault current is cut off, the switch of the switch station cannot trip due to loss of the brake-separating current; at the moment, when the substation outlet switch is reclosed, the substation outlet switch is closed on a fault line, so that reclosing failure is caused, when a line of a switching station has a fault, the switching station does not trip, and the substation outlet switch trips to cause a switching-on impact current to generate a false override trip phenomenon, so that other switches of the switching station are simultaneously influenced to trip in a linkage manner, and the problem of circuit disorder is caused.
The specific embodiments described herein are merely illustrative of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims appended hereto.
Claims (6)
1. A power grid structure for preventing override trip of small-sized switch station suitable for urban residence, the structure includes: junction box (1), digital display (2), differential relay (3), magnetic base button (4), housing cover (5), circuit breaker square chest (6), battery box (7), line cap crimping device (8), its characterized in that:
the differential relay (3) is electrically connected with the storage battery box (7) through a wire cap crimping device (8), the junction box (1) and the storage battery box (7) are respectively tightly attached to the upper side and the lower side of the breaker square box (6), the wire cap crimping device (8) is inserted and embedded in the junction box (1), the digital display (2) and the differential relay (3) are inserted and embedded in the front side of the junction box (1), the magnetic base button (4) is mechanically connected with the breaker square box (6), and the breaker square box (6) is installed in the shell frame cover (5);
the wire cap crimping device (8) is provided with a wire cap shaft lever cover (81), an insulation folded plate (82), a PC integrated plate (83), an I-shaped sectional column (84), a power transformation lead (85), a bevel gear (86) and a roller shaft motor (87);
the wire cap shaft rod cover (81) is mechanically connected with the insulation folded plate (82), the wire cap shaft rod cover (81) is buckled with a power transformation lead (85), the power transformation lead (85) is electrically connected with the PC integrated plate (83), the I-shaped sectional column (84) vertically penetrates through the inside of the wire cap shaft rod cover (81), the I-shaped sectional column (84) is mechanically connected with the roll shaft motor (87) through a bevel gear (86), the bevel gear (86) is nested below the bottom end of the I-shaped sectional column (84), the I-shaped sectional column (84) is inserted and embedded in the distributing box (1), and the PC integrated plate (83) is electrically connected with the storage battery box (7);
the breaker square box (6) is composed of an iron plate sliding frame (61), a top plate (62), an intermediate box body (63), an air switch brake (64) and an armature frame (65), the iron plate sliding frame (61) is matched with the top plate (62), the iron plate sliding frame (61) is mechanically connected with the armature frame (65) through the air switch brake (64), and the iron plate sliding frame (61), the top plate (62), the air switch brake (64) and the armature frame (65) are all nested on the left side of the intermediate box body (63);
the wire cap shaft rod cover (81) consists of a cap square groove (811), a concave end shaft rod (812) and a rolling wheel (813), the concave end shaft rod (812) is inserted and embedded at the right side of the rolling wheel (813), the cap square groove (811) is embedded at the left end of the concave end shaft rod (812), and the rolling wheel (813) is movably connected with the interior of the cap square groove (811);
the insulation folded plate (82) is composed of a pin column cylinder (821), a ball clamping and pressing fastener (822), a double-folded plate (823) and a thick frame ring (824), the pin column cylinder (821) is inserted and embedded in the upper left corner of the double-folded plate (823), the double-folded plate (823) is matched with the thick frame ring (824), and the ball clamping and pressing fastener (822) is installed inside the double-folded plate (823).
2. The power grid structure for preventing override trip of small-sized switchyard suitable for urban house according to claim 1, characterized in that: pin column casing (821) comprises pin square piece (8211), sleeve groove (8212), miniature singlechip (8213), column casing shell (8214), copper wire line (8215), pin square piece (8211) nests on the top of sleeve groove (8212), pin square piece (8211) is connected with copper wire line (8215) electricity through miniature singlechip (8213), sleeve groove (8212) and column casing shell (8214) nests in an organic whole.
3. The power grid structure for preventing override trip of small-sized switchyard suitable for urban house according to claim 1, characterized in that: ball presss from both sides presses knot ware (822) comprises trapezoidal anti-buckle board (8221), cavity spherical shell (8222), pendulum rod (8223), roof pressure fan board (8224), trapezoidal anti-buckle board (8221) is inserted and is inlayed on the top of cavity spherical shell (8222), trapezoidal anti-buckle board (8221) passes through pendulum rod (8223) and roof pressure fan board (8224) mechanical connection, roof pressure fan board (8224) cooperatees with cavity spherical shell (8222).
4. The power grid structure for preventing override trip of small-sized switchyard suitable for urban house according to claim 3, characterized in that: the trapezoidal reverse buckling plate (8221) is of a plate structure with the bottom edge of an isosceles trapezoid folded.
5. The power grid structure for preventing override trip of small-sized switchyard suitable for urban house according to claim 2, characterized in that: the cylindrical shell (8214) is an arc cavity cylindrical structure with a circular table groove at the bottom end.
6. The power grid structure for preventing override trip of small-sized switchyard suitable for urban house according to claim 1, characterized in that: the double-folded plate (823) is of a composite plate structure welded by double Z-shaped plates.
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| CN201910230510.0A CN110011284B (en) | 2019-03-26 | 2019-03-26 | Small-size switching station prevents electric wire netting structure of tripping operation of overriding suitable for urban residence |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205693447U (en) * | 2016-06-30 | 2016-11-16 | 上海宏力达信息技术股份有限公司 | A kind of intelligent interconnection switch control terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2664143Y (en) * | 2003-11-11 | 2004-12-15 | 江苏苏源舜达自动化设备有限公司 | Electric misoperation preventing blocking device |
| CN102074874B (en) * | 2011-03-02 | 2012-10-03 | 天津市力干连接器厂 | Full-automatic wire harness crimping machine |
| KR101274137B1 (en) * | 2012-08-10 | 2013-06-11 | 기아자동차주식회사 | Limp home controlling method of hybrid vehicle |
| CN105261427B (en) * | 2015-10-28 | 2017-03-22 | 兴乐电缆有限公司 | Simple wire dividing device of metal twisted wires |
| CN105514757B (en) * | 2016-01-20 | 2018-03-16 | 江苏博之旺自动化设备有限公司 | One kind is exempted to change the mold terminal crimping connector and terminal crimping method |
| CN205684991U (en) * | 2016-06-21 | 2016-11-16 | 宁波发达电气制造有限公司 | The end of a thread line cap press-connection machine |
| CN207397803U (en) * | 2017-07-31 | 2018-05-22 | 厦门海普锐科技股份有限公司 | Thread-dividing mechanism and wire-management device |
| CN108173099B (en) * | 2017-12-28 | 2023-10-24 | 上海应用技术大学 | Automatic wire stripping cap pressing machine |
-
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205693447U (en) * | 2016-06-30 | 2016-11-16 | 上海宏力达信息技术股份有限公司 | A kind of intelligent interconnection switch control terminal |
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