CN106707219B - High-voltage current transformer verification wiring device - Google Patents
High-voltage current transformer verification wiring device Download PDFInfo
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- CN106707219B CN106707219B CN201710046618.5A CN201710046618A CN106707219B CN 106707219 B CN106707219 B CN 106707219B CN 201710046618 A CN201710046618 A CN 201710046618A CN 106707219 B CN106707219 B CN 106707219B
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- voltage current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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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
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
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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
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
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- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention relates to a high-voltage current transformer verification wiring device, which comprises a rack and a flat cart, wherein the rack is provided with a plurality of through holes; the flat-bed cart is provided with a plurality of grooves; the bottom of the frame is provided with a positioning channel, two sides of the positioning channel are provided with rubber chains driven by a motor, and the rubber chains on the two sides are arranged; the top of the frame is slidably provided with a lifting pressure plate driven by a lifting driving mechanism, a plurality of metal pressing blocks are arranged on the bottom surface of the lifting pressure plate at intervals, the metal pressing blocks are arranged corresponding to bosses at the top ends of the transformers, and after the lifting pressure plate falls down, the metal pressing blocks are electrically connected with the bosses correspondingly, and wires are connected among the metal pressing blocks so that the transformers are connected to two ends of a power supply for detection in series; a plurality of telescopic elastic thimbles are arranged at two side parts of the frame. The wiring device can semi-automatically perform primary side and secondary side wiring on a plurality of mutual inductors at the same time, improves wiring efficiency and reduces wiring difficulty, has a simple structure, is convenient to operate and control, greatly improves verification work efficiency and reduces labor intensity.
Description
Technical Field
The invention relates to the field of high-voltage current transformer verification operation, in particular to a high-voltage current transformer verification wiring device.
Background
The high-voltage current transformer is used for converting large current into standard small current in proportion so as to realize standardization and miniaturization of measuring instruments, protective equipment and automatic control equipment, and the transformer can also be used for isolating a high-voltage system so as to ensure personal and equipment safety. The stability and accuracy grade of the high-voltage current transformer directly influence the measurement precision and accuracy of the measuring instrument. Therefore, the high-voltage current transformer needs to be strictly calibrated before use, and various automatic transformer calibrating devices can be used for calibrating a single high-voltage current transformer at present.
For a high-voltage current transformer, the specific structure generally includes a transformer body, a mounting base disposed at the bottom of the transformer body, an induction coil disposed inside the transformer body, a primary side terminal disposed at the top of the transformer body, and a secondary side terminal disposed on the sidewall of the bottom of the transformer body. The primary side wiring terminals are two bosses, bolt holes are formed in the bosses, and the secondary side wiring terminals are four wiring terminals. For the primary side wiring, generally, the end of the primary side cable is fixed on the boss by a bolt to electrically connect the cable with the primary side terminal, and for the secondary side wiring, the head of the secondary cable is directly pressed on the terminal or a wire clamp is connected to the end of the secondary cable, and then the wire clamp is clamped on the terminal, so that the secondary side of the transformer is connected with the verification equipment.
The metering devices in the field of power supply are multiple, the usage amount of the mutual inductor is large, verification operation needs to be carried out in batches, wiring operation in batch verification is completed one by operating staff and verifying operation, wiring efficiency is low, and working strength is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-voltage current transformer verification wiring device which can perform semi-automatic wiring on the primary side and the secondary side of a plurality of high-voltage current transformers simultaneously so as to automatically and sequentially verify the plurality of high-voltage current transformers.
In order to solve the technical problem, the high-voltage current transformer calibration wiring device is structurally characterized by comprising a rack and a flat cart; wheels are installed at the bottom of the flat-plate cart, one end of the flat-plate cart is connected with a pushing handle, and a plurality of grooves which are matched with bases of the mutual inductors are respectively arranged on the top surface of the flat-plate cart at intervals and are close to the two sides of the flat-plate cart; the bottom of the rack is provided with a positioning channel matched with the flat-plate cart, one end of the positioning channel is an inlet into which the flat-plate cart can be driven, the other end of the positioning channel is closed and provided with a spring for limiting, rubber chains driven by a motor are arranged on two sides of the positioning channel, and the rubber chains on the two sides can be matched with two side parts of the flat-plate cart to clamp the flat-plate cart and convey the flat-plate cart into the positioning channel; the top of the frame is slidably provided with a lifting pressure plate driven by a lifting driving mechanism, a plurality of metal pressing blocks are arranged on the bottom surface of the lifting pressure plate at intervals, the metal pressing blocks are arranged corresponding to bosses at the top ends of the transformers, the metal pressing blocks are electrically connected with the bosses in a one-to-one correspondence manner after the lifting pressure plate falls, and wires are connected among the metal pressing blocks so that the transformers are connected to two ends of a power supply for detection in series; and a plurality of telescopic elastic thimbles are arranged on the two side parts of the frame at positions corresponding to the secondary side wiring terminals of the mutual inductor, and each elastic thimble is electrically connected with the detection input terminal of the detection equipment through a secondary cable.
By adopting the structure, the mutual inductors are divided into two rows and are respectively placed on two sides of the top surface of the flat-plate cart, the positions of the mutual inductors are positioned by utilizing the two rows of grooves on the top surface of the cart, and after the mutual inductors are placed, the secondary side wiring terminals of the two rows of mutual inductors are arranged outwards; the flat-plate cart is pushed to an inlet of a positioning channel at the bottom of the rack, and the flat-plate cart can be automatically sent into the positioning channel by virtue of the extrusion conveying action of the rubber chains at two sides until the front end of the cart is limited by a spring, and at the moment, the positioning of the mutual inductors on the cart is also finished; for primary side wiring of each transformer, a voltage rising and dropping plate is arranged on the top, and by means of a metal pressing block and a wire on the bottom surface of the pressing plate, when the voltage rising and dropping plate is pressed down, the metal pressing block is in contact with and electrically connected with a primary side wiring terminal (namely a boss) on the top end of the transformer, and the transformers are sequentially connected in series and connected to two ends of a primary side detection power supply by the wire; for the secondary side wiring of each mutual inductor, elastic thimbles are arranged on two sides of the bottom of the rack, before the mutual inductor is pushed into the positioning channel, each elastic thimble retracts, after the mutual inductor is positioned, each elastic thimble pops out and is in contact with and electrically connected with a secondary side wiring terminal at a corresponding position, each elastic thimble is connected with verification equipment in advance, the wiring of each mutual inductor is completely finished, and the verification operation can be directly carried out. By the wiring device, primary side and secondary side wiring of the transformers can be completed simultaneously, wiring operation is simple, efficiency is high, and labor intensity is low.
Two lateral parts of flat-bed shallow all install the bar backplate of horizontal extension, and the interval sets up the anti-skidding line of many vertical settings on the bar backplate. With the help of the power of rubber chain and the elastic deformation effect of rubber chain itself, the both sides of dull and stereotyped shallow are extrudeed to the rubber chain of both sides, and the rubber chain rotates under the drive effect of motor to drive dull and stereotyped shallow and go forward or retreat, in order to avoid skidding, consequently set up the cooperation of the bar backplate rubber chain that has anti-skidding line, thereby guarantee the reliability of carrying and the accuracy of location.
Two sides of the inlet of the positioning channel are respectively provided with two baffle strips, the two baffle strips are respectively bent and extend outwards, and the two baffle strips form a horn-shaped inlet. The two baffle bars form a horn-shaped inlet, so that a trolley can conveniently enter the device.
The lateral part of the inlet of the positioning channel is provided with a first position sensor, the tail end of the positioning channel is provided with a second position sensor, and the signal output ends of the two position sensors are electrically connected with a control circuit of the motor. Two position sensor are used for detecting the positional information of shallow respectively to carry out automatic control to the rubber chain, specific control process is: when no cart is pushed to the inlet position, the motor is closed, the rubber chain does not act, when the first position sensor detects that the cart is pushed to the inlet position, the motor is started, the rubber chain acts to convey the cart into the channel, when the second position sensor detects that the front end of the cart reaches the tail end of the positioning channel, the motor is closed to perform automatic wiring control, when verification is completed, the cart is conveyed out of the positioning channel by additionally arranging a motor control button to control the motor to rotate reversely, and when the first position sensor detects that the cart is conveyed out of the channel, the motor is closed.
The two sides of the positioning channel are respectively rotatably provided with one row of chain rollers, the roller shaft of each chain roller is vertically arranged, the two rubber chains are respectively sleeved on the two rows of chain rollers, and the motor is arranged at the bottom of the rack and is in power connection with the roller shaft of at least one chain roller through a power transmission mechanism. The power transmission mechanism can adopt a chain and chain wheel type structure or a belt pulley type structure, only one motor can be arranged to drive one row of chain rollers independently, or each row of chain rollers is driven by one motor, and the two motors are synchronously controlled.
The rubber chain includes that the cover establishes banded body and the interval on the banded body surface of chain roller sets up a plurality of rubber blocks. The rubber block has elasticity and is used for matching with the strip-shaped guard plate.
The lifting and lowering plate is connected to the top of the frame in a sliding mode through a positioning rod, the lifting and lowering driving mechanism is an oil cylinder or an air cylinder or an electric push rod which is installed at the top of the frame, and a control box used for controlling the oil cylinder or the air cylinder or the electric push rod is installed at the top end of the frame. The lifting driving mechanism can select three driving structures, and the lifting state of the lifting pressure plate can be respectively controlled through the control box.
First chutes are respectively arranged above two side parts of the positioning channel, and the bottom end of the elastic thimble is connected with a first sliding block in sliding fit with the first chutes. Because the locating position of the cart is likely to deviate, and meanwhile, the number and the intervals of the secondary side wiring terminals of the transformers of different models are different, the elastic ejector pins adopt the sliding installation type structure, the intervals between the elastic ejector pins and the corresponding positions of the elastic ejector pins and the secondary side wiring terminals can be flexibly adjusted, and the cart is more flexible and convenient to use.
The elastic thimble comprises a sleeve, a sliding shaft is slidably arranged on the sleeve in a penetrating manner, two ends of the sliding shaft are extended out from two ends of a metal core shaft and a core shaft which are coaxial with the sliding shaft in an embedded manner, a second sliding groove is radially formed in the wall of the sleeve, a second sliding block in sliding fit with the second sliding groove is fixedly connected to the sliding shaft, the second sliding block extends out of the sleeve, a spring is connected between the second sliding block and the rear end of the sleeve, a positioning bayonet is formed in one side of the rear end of the second sliding groove, and a handle is fixedly connected to the rear end of the sliding shaft. The metal core shaft is used for conducting electricity so as to realize the electric connection between the secondary side wiring terminal of the mutual inductor and the secondary cable. To the flexible function and the locate function of elasticity thimble, in the above-mentioned structure, with the help of the sliding fit structure of slide-shaft and telescopic, realize the flexible function of thimble, with the help of the structure of location bayonet socket and second slider, can be with its position location when the thimble returns and contracts, in order to avoid carrying the in-process thimble that the mutual-inductor pushed in at the shallow and the mutual-inductor emergence interference collision takes place, after the mutual-inductor targets in place, rotate the handle of slide-shaft rear end, the second slider rotates and breaks away from the location bayonet socket, with the help of the elasticity of spring, the thimble stretches out and pushes up on the secondary side binding post of mutual-inductor, thereby accomplish the wiring of. Therefore, the elastic thimble is very simple in structure and very convenient to operate and control, and the reliability of electric connection is guaranteed by means of the elasticity of the spring.
The rear end part of each metal core shaft is connected with a cable, every four elastic thimbles form a group, each group of elastic thimbles is correspondingly connected to a transfer junction box, and the transfer junction box is electrically connected with a detection input terminal of the verification equipment. The secondary side connecting terminals of the transformers are generally four, and a transfer junction box is specially arranged to be correspondingly connected with each transformer, so that misconnection can be avoided, and the use is more reliable.
The wiring device can simultaneously carry out primary side and secondary side wiring on a plurality of mutual inductors, improves wiring efficiency and reduces wiring difficulty, has simple structure and convenient operation and control, greatly improves verification operation efficiency and reduces labor intensity.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic structural diagram of a conventional high-voltage current transformer;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a left side view of the structure of FIG. 1;
FIG. 4 is a schematic view of the overall structure of the present invention;
FIG. 5 is a schematic structural view of the flatbed cart;
FIG. 6 is a schematic view of a fitting structure of the flat cart and the rubber chain;
FIG. 7 is a schematic diagram of the arrangement structure of metal compacts on the pressure rising and lowering plate;
fig. 8 is a schematic view of a specific structure of the elastic thimble and an installation structure thereof.
Detailed Description
Referring to the attached drawings, the high-voltage current transformer verification wiring device comprises a rack 1 and a flat cart 2. Wheels 3 are installed at the bottom of the flat-bed cart 2, one end of the flat-bed cart 2 is connected with a pushing handle 4, and a plurality of grooves which are matched with the base 51 of the mutual inductor 5 are respectively arranged on the top surface of the flat-bed cart 2 at intervals and are close to the positions of two sides. The bottom of the frame 1 is provided with a channel matched with the flat-plate cart 2, one end of the positioning channel is an inlet for the cart to enter, the other end of the positioning channel is closed and provided with a spring limit 6, two sides of the positioning channel are provided with rubber chains 8 driven by a motor 7, and the rubber chains 8 on the two sides can be matched with two side parts of the flat-plate cart 2 to clamp the cart and convey the cart to the inside of the positioning channel. The top slidable mounting of frame 1 has by lift actuating mechanism driven lift clamp 9, and the interval sets up a plurality of metal briquetting 10 on the bottom surface of lift clamp 9, and metal briquetting 10 corresponds the setting with the boss 53 on mutual-inductor 5 top and each metal briquetting 10 is connected with each boss 53 one-to-one after lift clamp 9 falls, is connected with the wire between each metal briquetting 10 so that each mutual-inductor connects in series to the both ends of detecting power, sets up the terminal box 24 of detecting power on frame 1 top. A plurality of elastic thimbles 11 which are telescopic are arranged on two side parts of the frame 1 at positions corresponding to the secondary side connecting terminals 52 of the mutual inductor 5, and each elastic thimble 11 is electrically connected with a detection input terminal of the verification equipment through a secondary cable.
When the flat-plate cart 2 is loaded, the high-voltage current transformers are divided into two rows and are respectively placed on two sides of the top surface of the flat-plate cart 2, the positions of the transformers 5 are positioned by utilizing two rows of grooves on the top surface of the cart, and after the placement is finished, secondary side wiring terminals 52 of the two rows of transformers 5 are arranged outwards; the flat-plate cart 2 is pushed to an inlet of a positioning channel at the bottom of the rack 1, the flat-plate cart 2 can be automatically sent into the positioning channel by virtue of the extrusion conveying action of the rubber chains 8 at two sides until the front end of the cart touches a spring limit 6, and at the moment, the positioning of the mutual inductor 5 on the cart is also completed; for the primary side wiring of each transformer 5, a voltage rising and dropping plate 9 is arranged on the top, and by means of a metal pressing block 10 and a lead 23 on the bottom surface of the pressing plate, when the voltage rising and dropping plate 9 is pressed down, the metal pressing block 10 is contacted and electrically connected with a primary side wiring terminal (namely a boss 53) on the top end of the transformer, and the transformers 5 are sequentially connected in series and connected to two ends of a primary side detection power supply by the lead 23; for the secondary side wiring of each mutual inductor 5, the elastic thimbles 11 are arranged on two sides of the bottom of the frame 1, before the mutual inductor 5 is pushed into the positioning channel, each elastic thimble 11 retracts, after the mutual inductor 5 is positioned, each elastic thimble 11 pops out and is in contact with and electrically connected with the secondary side wiring terminal 52 at the corresponding position, each elastic thimble 11 is connected with the verification equipment in advance, the wiring of each mutual inductor 5 is completely finished, and the verification operation can be directly carried out. Therefore, the wiring device can be used for simultaneously completing the primary side and secondary side wiring of the transformers 5, and is simple in wiring operation, high in efficiency and low in labor intensity.
To dull and stereotyped shallow 2's propelling movement power, with the help of the power of rubber chain 8 and the elastic deformation effect of rubber chain 8 itself, the both sides of dull and stereotyped shallow 2 of rubber chain 8 extrusion of both sides, rubber chain 8 rotates under the drive effect of motor 7 to drive dull and stereotyped shallow 2 and advance or retreat, in order to avoid skidding, horizontal extension's bar backplate 12 is all installed to two lateral parts of dull and stereotyped shallow 2, the interval sets up the anti-skidding line of many vertical settings on bar backplate 12.
Referring to the attached drawings, in order to make the flat-bed cart 2 enter the positioning channel more smoothly, two retaining strips 13 are respectively arranged on two sides of the inlet of the positioning channel, the two retaining strips 13 are respectively bent and extend outwards, and the two retaining strips 13 form a horn-shaped inlet.
Referring to the drawings, in order to increase the degree of automation of the device, a first position sensor 14 is installed at the side of the inlet of the positioning channel, a second position sensor 22 is installed at the tail end of the positioning channel, and the signal output ends of the two position sensors are electrically connected with a control circuit of the motor 7. The position sensor can adopt photoelectric sensors, and the two position sensors are respectively used for detecting the position information of the cart, so that the rubber chain 8 is automatically controlled, and the specific control process is as follows: when no cart is pushed to the inlet position, the motor is turned off, the rubber chain 8 does not act, when the first position sensor 14 detects that the cart is pushed to the inlet position, the motor 7 is started, the rubber chain 8 acts to convey the cart into the positioning channel, when the second position sensor 22 detects that the front end of the cart reaches the tail end of the positioning channel, the motor is turned off to perform automatic wiring control, when verification is completed, the motor is controlled to rotate reversely to convey the cart out of the positioning channel through additionally arranging a motor reverse rotation control button, and when the first position sensor 14 detects that the cart is conveyed out of the positioning channel, the motor is turned off. With the above circuit configuration, the forward rotation control of the motor is automatic control, and the reverse rotation control of the motor is controlled by a button, and for the reverse rotation control button, not shown in the drawings, it may be provided on the chassis alone or on a control box described below.
Referring to the attached drawings, two sides of the positioning channel are respectively and rotatably provided with a row of chain rollers 15, a roller shaft of each chain roller 15 is vertically arranged, two rubber chains 8 are respectively sleeved on the two rows of chain rollers 15, and the motor 7 is arranged at the bottom of the rack and is in power connection with the roller shaft of at least one chain roller 15 through a power transmission mechanism. The power transmission mechanism can adopt a chain and chain wheel type structure or a belt pulley type structure, only one motor 7 can be arranged to drive one row of chain rollers 15 independently, or each row of chain rollers 15 is driven by one motor 7, and the two motors 7 are synchronously controlled. Wherein, the rubber chain 8 comprises a belt-shaped body sleeved on the chain roller 15 and a plurality of rubber blocks arranged on the outer surface of the belt-shaped body at intervals.
Referring to the attached drawings, a lifting pressure plate 9 is connected to the top of a rack 1 in a sliding mode through a positioning rod 16, a lifting driving mechanism is an oil cylinder 17 or an air cylinder or an electric push rod installed at the top of the rack 1, and a control box 18 used for controlling the oil cylinder 17 or the air cylinder or the electric push rod is installed at the top end of the rack 1. The structure of the oil cylinder is shown in the attached drawings, and the oil cylinder is controlled by the control box so as to control the actions of the pressure rising and reducing plate.
Referring to the drawings, first sliding grooves 19 are respectively arranged above two side portions of the positioning channel, and a first sliding block 20 in sliding fit with the first sliding grooves 19 is connected to the bottom end of the elastic ejector pin 11. Because the positioning position of the cart may deviate, and meanwhile, the number and the spacing of the secondary side connecting terminals 52 of the transformers 5 of different models are different, the elastic ejector pins 11 adopt the sliding installation type structure, the spacing between the elastic ejector pins 11 and the corresponding positions of the elastic ejector pins 11 and the secondary side connecting terminals 52 can be flexibly adjusted, and the use is more flexible and convenient.
Referring to the attached drawings, for the specific structure of the elastic thimble 11, the elastic thimble comprises a sleeve 111 and a sliding shaft 112 slidably mounted on the sleeve 111, a metal core shaft 113 coaxial with the sliding shaft 112 is embedded in the sliding shaft 112, two ends of the core shaft extend out of two ends of the sliding shaft 112, a second sliding groove 114 is radially formed in the wall of the sleeve 111, a second sliding block 115 in sliding fit with the second sliding groove 114 is fixedly connected to the sliding shaft 112, the second sliding block 115 extends out of the sleeve 111, a spring 116 is connected between the second sliding block 115 and the rear end of the sleeve 111, a positioning bayonet 117 is formed in one side of the rear end of the second sliding groove 114, and a handle 118 is fixedly connected to the rear end of the sliding shaft 112. In the structure, the retractable function of the thimble is realized by virtue of the sliding fit structure of the sliding shaft 112 and the sleeve 111, the position of the thimble can be positioned when the thimble retracts by virtue of the structures of the positioning bayonet 117 and the second slider 115 so as to avoid interference collision between the thimble and the mutual inductor 5 in the pushing process of carrying the mutual inductor 5 by the cart, when the mutual inductor 5 is in place, the handle 118 at the rear end of the sliding shaft 112 is rotated, the second slider 115 is rotated and separated from the positioning bayonet 117, and the thimble extends out and abuts against the secondary side wiring terminal 52 of the mutual inductor 5 by virtue of the elasticity of the spring 116, so that the secondary side wiring is completed. Therefore, the elastic thimble is very simple in structure and very convenient to operate and control, and the reliability of electric connection is guaranteed by means of the elasticity of the spring.
Referring to the drawing, the rear end of each metal mandrel 113 is connected with a cable, four elastic ejector pins 11 are in a group, each group of elastic ejector pins 11 is correspondingly connected to one transfer junction box 21, and the transfer junction box 21 is electrically connected with the detection input terminal of the verification equipment. The secondary side terminals 52 of the transformers 5 are generally four, and the transfer terminal box 21 is specially arranged to be correspondingly connected with each transformer 5, so that misconnection can be avoided, and the use is more reliable.
In summary, the present invention is not limited to the above-described embodiments. Numerous changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The protection scope of the present invention shall be subject to the claims of the present invention.
Claims (9)
1. A high-voltage current transformer calibration wiring device is characterized by comprising a rack (1) and a flat cart (2); wheels (3) are installed at the bottom of the flat-bed cart (2), one end of the flat-bed cart (2) is connected with a push handle (4), and a plurality of grooves which are matched with bases (51) of the mutual inductors (5) are respectively arranged on the top surface of the flat-bed cart (2) at intervals at positions close to two sides; a channel matched with the flat-plate cart (2) is arranged at the bottom of the rack (1), one end of the channel is an inlet into which the cart can drive, the other end of the channel is closed and provided with a spring limit (6), rubber chains (8) driven by a motor (7) are arranged on two sides of the channel, and the rubber chains (8) on the two sides can be matched with two side parts of the flat-plate cart (2) to clamp the cart and convey the cart into the channel; the top of the rack (1) is provided with a lifting pressing plate (9) driven by a lifting driving mechanism in a sliding manner, a plurality of metal pressing blocks (10) are arranged on the bottom surface of the lifting pressing plate (9) at intervals, the metal pressing blocks (10) are arranged corresponding to bosses (53) at the top ends of the transformers (5), the metal pressing blocks (10) are electrically connected with the bosses (53) one by one after the lifting pressing plate (9) falls, and wires (23) are connected between the metal pressing blocks (10) so that the transformers (5) are connected to two ends of a power supply for detection in series; a plurality of telescopic elastic thimbles (11) are arranged on two side parts of the frame (1) at positions corresponding to the secondary side connecting terminals (52) of the mutual inductor (5), each elastic thimble (11) comprises a sleeve (111) and a sliding shaft (112) which is slidably arranged on the sleeve (111), a metal mandrel (113) coaxial with the sliding shaft is embedded in the sliding shaft (112), two ends of the mandrel extend out of two ends of the sliding shaft (112), a second sliding chute (114) is radially arranged on the wall of the sleeve (111), a second sliding block (115) in sliding fit with the second sliding chute (114) is fixedly connected on the sliding shaft (112), the second sliding block (115) extends out of the sleeve (111), a spring (116) is connected between the second sliding block (115) and the rear end of the sleeve (111), a positioning bayonet (117) is arranged on one side of the rear end part of the second sliding chute (114), and a handle (118) is fixedly connected on the rear end part of the sliding shaft (112), each elastic thimble (11) is electrically connected with a detection input terminal of the verification equipment through a secondary cable.
2. The high-voltage current transformer calibration wiring device as claimed in claim 1, wherein two lateral parts of the flat cart (2) are respectively provided with a strip-shaped guard plate (12) extending transversely, and a plurality of anti-skid lines arranged longitudinally are arranged on the strip-shaped guard plates (12) at intervals.
3. The high-voltage current transformer calibration wiring device as claimed in claim 1, wherein two barrier strips (13) are respectively arranged at two sides of the channel inlet, the two barrier strips (13) are respectively bent and extended outwards, and the two barrier strips (13) form a horn-shaped inlet.
4. The high-voltage current transformer verification wiring device as claimed in claim 1, wherein a first position sensor (14) is mounted on the side of the inlet of the channel, a second position sensor (22) is mounted on the end of the channel, and the signal output ends of the two position sensors are electrically connected with a control circuit of the motor (7).
5. The high-voltage current transformer calibration wiring device as claimed in claim 1, wherein a row of chain rollers (15) are rotatably mounted on each of two sides of the channel, a roller shaft of each chain roller (15) is vertically arranged, two rubber chains (8) are respectively sleeved on the two rows of chain rollers (15), and the motor (7) is mounted at the bottom of the frame and is in power connection with the roller shaft of at least one chain roller (15) through a power transmission mechanism.
6. The high-voltage current transformer verification wiring device as claimed in claim 5, wherein the rubber chain (8) comprises a belt-shaped body sleeved on the chain roller (15) and a plurality of rubber blocks arranged on the outer surface of the belt-shaped body at intervals.
7. The high-voltage current transformer verification wiring device as claimed in claim 1, wherein the lifting and lowering plate (9) is slidably connected to the top of the rack (1) through a positioning rod (16), the lifting and lowering driving mechanism is an oil cylinder (17), an air cylinder or an electric push rod which is installed on the top of the rack (1), and a control box (18) for controlling the oil cylinder (17), the air cylinder or the electric push rod is installed at the top end of the rack (1).
8. The high-voltage current transformer verification wiring device as claimed in any one of claims 1 to 7, wherein a first sliding groove (19) is respectively arranged above two side parts of the channel, and a first sliding block (20) which is in sliding fit with the first sliding groove (19) is connected to the bottom end of the elastic thimble (11).
9. The high-voltage current transformer calibration wiring device as claimed in claim 8, wherein the rear end of each metal core shaft (113) is connected with a cable, each four of the elastic pins (11) are in a group, each group of the elastic pins (11) is correspondingly connected to a transfer junction box (21), and the transfer junction box (21) is electrically connected with the detection input terminal of the calibration equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046618.5A CN106707219B (en) | 2017-01-22 | 2017-01-22 | High-voltage current transformer verification wiring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710046618.5A CN106707219B (en) | 2017-01-22 | 2017-01-22 | High-voltage current transformer verification wiring device |
Publications (2)
| Publication Number | Publication Date |
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| CN106707219A CN106707219A (en) | 2017-05-24 |
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| CN108802659A (en) * | 2018-08-22 | 2018-11-13 | 湖北仪天成电力设备有限公司 | A kind of frequency conversion type mutual inductor comprehensive tester |
| CN109375141B (en) * | 2018-12-13 | 2021-01-15 | 国网山东省电力公司龙口市供电公司 | Mutual-inductor detects uses wiring instrument |
| CN109444697A (en) * | 2018-12-25 | 2019-03-08 | 力维兴电子（深圳)有限公司 | A kind of power transformer Performance Test System and method |
| CN109917320A (en) * | 2019-03-18 | 2019-06-21 | 广州供电局有限公司 | Ct calibrating fixture and ct calibrating system |
| CN109932674A (en) * | 2019-03-18 | 2019-06-25 | 广州供电局有限公司 | Mutual inductor detects fixture and mutual inductor detection system |
| CN112345995B (en) * | 2020-11-04 | 2022-12-13 | 国网山东省电力公司潍坊供电公司 | Voltage transformer calibration wiring device and use method |
| CN113030832A (en) * | 2021-03-22 | 2021-06-25 | 苏州电器科学研究院股份有限公司 | Device and method for detecting composite error of current transformer |
| CN115724103A (en) * | 2022-11-22 | 2023-03-03 | 国网浙江省电力有限公司绍兴供电公司 | Verification and storage integrated system suitable for high-voltage transformers of various specifications |
| CN117199895B (en) * | 2023-11-06 | 2024-01-26 | 河南溪亭电力设备有限公司 | Wiring mechanism for mutual inductor detection |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201698015U (en) * | 2010-06-13 | 2011-01-05 | 栾川县电业局 | Rapid wiring device for detecting current transformer |
| CN102135607A (en) * | 2011-03-01 | 2011-07-27 | 国网电力科学研究院武汉南瑞有限责任公司 | Automatic calibration line and method for intelligent type low-tension current transformers |
| CN102353920A (en) * | 2011-07-14 | 2012-02-15 | 浙江省电力公司 | Mutual inductor automation detecting system |
| CN202204923U (en) * | 2011-07-14 | 2012-04-25 | 浙江省电力公司 | Full-automatic transformer verification system |
| CN202216978U (en) * | 2011-08-24 | 2012-05-09 | 国网电力科学研究院武汉南瑞有限责任公司 | Secondary press needle wiring assembly for low voltage current transformer automatic detection |
| CN103344895A (en) * | 2013-07-30 | 2013-10-09 | 河北海纳电测仪器股份有限公司 | Automatic verification system of low-voltage current transformer |
| CN103344935A (en) * | 2013-05-10 | 2013-10-09 | 国家电网公司 | Full-automatic low-voltage current transformer testing wiring apparatus |
| CN103728583A (en) * | 2014-01-06 | 2014-04-16 | 国家电网公司 | Automatic mutual inductor verification system in seamless connection with logistics system |
| CN203658569U (en) * | 2014-01-06 | 2014-06-18 | 国家电网公司 | Transmission device for automatic calibration of low-tension current transformers |
| CN104020434A (en) * | 2014-06-16 | 2014-09-03 | 国网上海市电力公司 | Automatic calibrating system for metering low-voltage current transformer |
| CN205157759U (en) * | 2015-12-08 | 2016-04-13 | 国网山东省电力公司潍坊供电公司 | Mutual -inductor detects wiring instrument of using |
-
2017
- 2017-01-22 CN CN201710046618.5A patent/CN106707219B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201698015U (en) * | 2010-06-13 | 2011-01-05 | 栾川县电业局 | Rapid wiring device for detecting current transformer |
| CN102135607A (en) * | 2011-03-01 | 2011-07-27 | 国网电力科学研究院武汉南瑞有限责任公司 | Automatic calibration line and method for intelligent type low-tension current transformers |
| CN102353920A (en) * | 2011-07-14 | 2012-02-15 | 浙江省电力公司 | Mutual inductor automation detecting system |
| CN202204923U (en) * | 2011-07-14 | 2012-04-25 | 浙江省电力公司 | Full-automatic transformer verification system |
| CN202216978U (en) * | 2011-08-24 | 2012-05-09 | 国网电力科学研究院武汉南瑞有限责任公司 | Secondary press needle wiring assembly for low voltage current transformer automatic detection |
| CN103344935A (en) * | 2013-05-10 | 2013-10-09 | 国家电网公司 | Full-automatic low-voltage current transformer testing wiring apparatus |
| CN103344895A (en) * | 2013-07-30 | 2013-10-09 | 河北海纳电测仪器股份有限公司 | Automatic verification system of low-voltage current transformer |
| CN103728583A (en) * | 2014-01-06 | 2014-04-16 | 国家电网公司 | Automatic mutual inductor verification system in seamless connection with logistics system |
| CN203658569U (en) * | 2014-01-06 | 2014-06-18 | 国家电网公司 | Transmission device for automatic calibration of low-tension current transformers |
| CN104020434A (en) * | 2014-06-16 | 2014-09-03 | 国网上海市电力公司 | Automatic calibrating system for metering low-voltage current transformer |
| CN205157759U (en) * | 2015-12-08 | 2016-04-13 | 国网山东省电力公司潍坊供电公司 | Mutual -inductor detects wiring instrument of using |
Non-Patent Citations (1)
| Title |
|---|
| 小电流互感器现场检定接线方式的研究;崔广泉 等;《东北电力技术》;20120531(第5期);第11-13页 * |
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