CN211148795U

CN211148795U - Large-caliber high-precision transformation ratio testing device

Info

Publication number: CN211148795U
Application number: CN201920215814.5U
Authority: CN
Inventors: 侯淞学; 朱朝曙
Original assignee: Wuhan Lingdasheng Technology Co ltd; Wuhan Electric Power Technical College
Current assignee: Wuhan Lingdasheng Technology Co ltd; Wuhan Electric Power Technical College
Priority date: 2019-02-20
Filing date: 2019-02-20
Publication date: 2020-07-31
Anticipated expiration: 2029-02-20

Abstract

The utility model discloses a heavy-calibre high accuracy transformation ratio testing arrangement, including the insulator spindle, the pincers body and terminal casing, the top of insulator spindle and the bottom fixed connection of the pincers body, the equal fixedly connected with electric telescopic handle in both sides of pincers internal chamber, there are first rotor plate and second rotor plate in two electric telescopic handle's one end through moving part swing joint respectively, rotate through pivot and bearing between the inside of first rotor plate and the inside of second rotor plate and be connected, the top of first rotor plate and the top of second rotor plate all run through the pincers body and extend to the top of the pincers body, the utility model relates to a transformation ratio test technical field. This heavy-calibre high accuracy transformation ratio testing arrangement, the appearance is pleasing to the eye, the person of facilitating the use carries, and the interference killing feature is strong, the operation is reliable and stable, and on-the-spot test metering device and instrument exempt from the tear-off line design, great improvement holistic practicality, reduced operating personnel's intensity of labour to a certain extent, convenient to use person operates safe and reliable.

Description

Large-caliber high-precision transformation ratio testing device

Technical Field

The utility model relates to a transformation ratio test technical field specifically is a heavy-calibre high accuracy transformation ratio testing arrangement.

Background

The transformation ratio testing device adopts modern electronic technology, and has the advantages of small volume, light weight, high precision, good stability and the like. The transformation ratio tester adopts large-screen liquid crystal Chinese character display and menu operation, the interface is clear, and the transformation ratio groups can be tested at one time. The transformation ratio tester is an ideal tester in the power industry sector, and the large-caliber high-precision CT transformation ratio error live-line tester is a novel electricity utilization inspection device. The high-voltage primary current and the low-voltage secondary current of the high-voltage current transformer of the power grid of 35KV and below can be measured on site without disconnecting or powering off, the polarity can be judged, the transformation ratio and the error can be calculated, the conventional transformation ratio testing device is not stable and reliable enough in operation, the measured value of the user test is easily influenced, the anti-interference capability is not strong, and the device is not convenient for the user to carry.

Traditional transformation ratio testing arrangement, the not convenient to use person carries, and anti-interference ability is not strong, the operation is reliable and stable inadequately, and field test metering device and instrument need use the wire to connect, great reduction holistic practicality, increased operating personnel's intensity of labour to a certain extent, the not convenient to use person operates, safe and reliable inadequately.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a heavy-calibre high accuracy transformation ratio testing arrangement has solved the complicated and not strong problem of interference killing feature of transformation ratio testing arrangement user.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a large-caliber high-precision transformation ratio testing device comprises an insulating rod, a clamp body and a terminal shell, wherein the top end of the insulating rod is fixedly connected with the bottom of the clamp body, electric telescopic rods are fixedly connected to two sides of an inner cavity of the clamp body, one ends of the two electric telescopic rods are respectively and movably connected with a first rotating plate and a second rotating plate through moving parts, the inside of the first rotating plate and the inside of the second rotating plate are rotatably connected through a rotating shaft and a bearing, the top of the first rotating plate and the top of the second rotating plate both penetrate through the clamp body and extend to the top of the clamp body, an opening and closing claw is fixedly connected to the surface of the first rotating plate extending to the top of the clamp body and the surface of the second rotating plate extending to the top of the clamp body, an under-voltage indicator lamp, a range indicator lamp and a power indicator lamp are fixedly connected to the surface of the clamp body from left to right in sequence, and a, the surface of the terminal shell is fixedly connected with a key at the bottom of the display screen.

Preferably, the surface of the pincer body and the bottom of the power indicator lamp are fixedly connected with a power switch, and the surface of the pincer body and one side of the power switch are fixedly connected with a range switch.

Preferably, a charging socket is fixedly connected to the top of one side of the pincer body, and a spring is fixedly connected between one side of the first rotating plate and one side of the second rotating plate.

Preferably, the bottom of the terminal shell is fixedly connected with a low-voltage primary clamp meter input hole, a wireless communication antenna, a low-voltage secondary clamp meter input hole and a GPS antenna from left to right in sequence.

Preferably, the bottom of the terminal shell is fixedly connected with a USB connector behind the wireless communication antenna.

Preferably, the surface of the insulating rod is fixedly connected with an anti-slip sleeve.

Advantageous effects

The utility model provides a heavy-calibre high accuracy transformation ratio testing arrangement. Compared with the prior art, the method has the following beneficial effects:

(1) the large-caliber high-precision transformation ratio testing device is rotationally connected with the inside of the second rotating plate through a rotating shaft and a bearing through the inside of the first rotating plate and the inside of the second rotating plate, the top of the first rotating plate and the top of the second rotating plate both penetrate through the clamp body and extend to the top of the clamp body, the surface of the first rotating plate extending to the top of the clamp body and the surface of the second rotating plate extending to the top of the clamp body are both fixedly connected with a switching claw, the surface of the clamp body is sequentially and fixedly connected with an under-voltage indicator lamp, a range indicator lamp and a power indicator lamp from left to right, the surface of the terminal shell is fixedly connected with a display screen, the surface of the terminal shell is fixedly connected with a key positioned at the bottom of the display screen, the appearance is attractive, the carrying by a user is convenient, the anti-interference capacity is strong, the operation is stable and reliable, the, the labor intensity of operators is reduced to a certain extent.

(2) This heavy-calibre high accuracy transformation ratio testing arrangement, the fixed surface through the insulator spindle is connected with antiskid cover, and the bottom of terminal casing just is located wireless communication antenna's rear fixedly connected with USB and connects, and the bottom of terminal casing is from a left side to the right side in proper order the primary tong-ammeter input hole of fixedly connected with low pressure, wireless communication antenna, two tong-ammeter input holes of low pressure and GPS antenna, convenient to use person operates safe and reliable.

Drawings

FIG. 1 is a schematic structural view of the telescopic rod and the forceps body of the present invention;

fig. 2 is a schematic structural diagram of the terminal housing of the present invention;

fig. 3 is a bottom view of the terminal housing structure of the present invention;

FIG. 4 is a sectional view of the structure of the clamp body when the opening/closing claw of the present invention is closed;

fig. 5 is a sectional view of the structure of the clamp body when the opening/closing claw of the present invention is opened.

In the figure: 1 insulating rod, 2 pincers bodies, 3 terminal casings, 4 electric telescopic rod, 5 first rotor plates, 6 second rotor plates, 7 switching claws, 8 under-voltage indicator lamps, 9 range indicator lamps, 10 power indicator lamps, 11 display screens, 12 power switches, 13 range switches, 14 charging sockets, 15 springs, 16 low-voltage primary clamp meter input holes, 17 wireless communication antennas, 18 low-voltage secondary clamp meter input holes, 19 GPS antennas and 20 USB connectors.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a heavy-calibre high accuracy transformation ratio testing arrangement, including insulator spindle 1, pincers body 2 and terminal housing 3, the top of insulator spindle 1 and the bottom fixed connection of pincers body 2, the bottom fixedly connected with switch 12 that the surface of pincers body 2 just is located power indicator 10, the surface of pincers body 2 just is located one side fixedly connected with range switch 13 of switch 12, the top fixedly connected with charging socket 14 of pincers body 2 one side, and fixedly connected with spring 15 between one side of first rotor plate 5 and one side of second rotor plate 6, the equal fixedly connected with electric telescopic handle 4 in both sides of pincers body 2 inner chamber, and the one end of two electric telescopic handle 4 has first rotor plate 5 and second rotor plate 6 through the moving part swing joint respectively, rotate through pivot and bearing between the inside of first rotor plate 5 and the inside of second rotor plate 6 and be connected, the top of first rotor plate 5 and the top of second rotor plate 6 all run through pincers body 2 and extend to the top of pincers body 2 The surface of the first rotating plate 5 extending to the top of the clamp body 2 and the surface of the second rotating plate 6 extending to the top of the clamp body 2 are fixedly connected with an opening-closing claw 7, the surface of the clamp body 2 is fixedly connected with an under-voltage indicator light 8, a range indicator light 9 and a power indicator light 10 from left to right in sequence, the surface of the terminal shell 3 is fixedly connected with a display screen 11, the terminal shell 3 directly collects the secondary current of a low-voltage current transformer, the terminal shell 3 calculates the primary, secondary transformation ratio, transformation ratio error and angle difference of the current transformer in real time according to signals at two sides of the clamp body 2 to ensure the safety and reliability of the operation process, the pull-type high-voltage insulating rod 1 extends for 5 meters to ensure the personal safety of the operation process, a self-calibration coil is attached in the clamp body 2 to automatically judge the closing state and precision of the current clamp, the clamp body 2 has a large opening caliber, and is particularly suitable for the problem that a large-size, the surface of the terminal shell 3 is fixedly connected with a button positioned at the bottom of the display screen 11, the bottom of the terminal shell 3 is fixedly connected with a low-voltage primary clamp meter input hole 16, a wireless communication antenna 17, a low-voltage secondary clamp meter input hole 18 and a GPS antenna 19 from left to right in sequence, the bottom of the terminal shell 3 is fixedly connected with a USB joint 20 positioned at the rear of the wireless communication antenna 17, the surface of the insulating rod 1 is fixedly connected with an anti-slip sleeve, the instrument has strong anti-interference performance and is suitable for various on-site complex electromagnetic interference working environments, during on-site inspection, the transformer transformation ratio can be directly measured without starting up and inputting any parameter by the terminal shell 3, the primary and secondary current values of the transformer are input, the error of the transformer under the actual working condition can be measured, the measurement data can be filed after the upgrading of instrument software and transmitted to a computer.

During the use, the user can transport suitable position with this pincers body 2 through flexible insulator spindle 1 earlier, then just can start electric telescopic handle 4, electric telescopic handle 4 starts the motion that can drive first rotor plate 5 and second rotor plate 6 after, and then has driven the motion of two switching claws 7, just so can penetrate the inside of two switching claws 7 with cable joint, at this moment start electric telescopic handle 4 again can open and close claw 7 and carry out the closure, at this moment pincers body 2 just can detect the current signal of gathering, and then send terminal housing 3 through wireless transmission mode.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a heavy-calibre high accuracy transformation ratio testing arrangement, includes insulator spindle (1), pincers body (2) and terminal housing (3), the top of insulator spindle (1) and the bottom fixed connection of pincers body (2), its characterized in that: the clamp is characterized in that electric telescopic rods (4) are fixedly connected to two sides of an inner cavity of the clamp body (2), one ends of the two electric telescopic rods (4) are respectively and movably connected with a first rotating plate (5) and a second rotating plate (6) through moving parts, the inside of the first rotating plate (5) and the inside of the second rotating plate (6) are rotatably connected through a rotating shaft and a bearing, the top of the first rotating plate (5) and the top of the second rotating plate (6) penetrate through the clamp body (2) and extend to the top of the clamp body (2), the surface of the first rotating plate (5) extending to the top of the clamp body (2) and the surface of the second rotating plate (6) extending to the top of the clamp body (2) are respectively and fixedly connected with an opening and closing claw (7), and the surface of the clamp body (2) is sequentially and fixedly connected with an under-pressure indicator lamp (8), a range indicator lamp (9) and a power indicator lamp, the surface of the terminal shell (3) is fixedly connected with a display screen (11), and the surface of the terminal shell (3) is fixedly connected with a key positioned at the bottom of the display screen (11).

2. The large-caliber high-precision transformation ratio testing device according to claim 1, characterized in that: the clamp is characterized in that a power switch (12) is fixedly connected to the surface of the clamp body (2) and the bottom of the power indicator (10), and a range switch (13) is fixedly connected to the surface of the clamp body (2) and one side of the power switch (12).

3. The large-caliber high-precision transformation ratio testing device according to claim 1, characterized in that: the top of one side of the pincer body (2) is fixedly connected with a charging socket (14), and a spring (15) is fixedly connected between one side of the first rotating plate (5) and one side of the second rotating plate (6).

4. The large-caliber high-precision transformation ratio testing device according to claim 1, characterized in that: the bottom of the terminal shell (3) is fixedly connected with a low-voltage primary clamp meter input hole (16), a wireless communication antenna (17), a low-voltage secondary clamp meter input hole (18) and a GPS antenna (19) from left to right in sequence.

5. The large-caliber high-precision transformation ratio testing device according to claim 4, wherein: and a USB connector (20) is fixedly connected to the bottom of the terminal shell (3) and is positioned behind the wireless communication antenna (17).

6. The large-caliber high-precision transformation ratio testing device according to claim 1, characterized in that: the surface of the insulating rod (1) is fixedly connected with an anti-slip sleeve.