A 10kV high voltage switch cabinet nuclear phase auxiliary device and its operation method

Abstract

The present invention discloses a 10kV high-voltage switch cabinet phase-checking auxiliary device and an operation method thereof, comprising a transparent isolation baffle, a magnetic seat and a mandrel, two magnetic seats are installed on both sides of the upper inner part of the transparent isolation baffle, two mandrels are used, the inner end is provided with a trumpet-shaped square frame for clamping the baffle switch drive pin, and the outer end is detachably plugged into two mounting holes provided on both sides of the lower part of the transparent isolation baffle, a lock pin hinged to the lock hole on the switch cabinet is installed in the middle of the bottom side of the transparent isolation baffle, and a phase-checking hole is provided in the middle of the transparent isolation baffle. The present invention is simple and easy to use, and only one person is needed to complete the phase-checking without the guardian, thereby improving work efficiency; the transparent isolation baffle can be operated remotely, which greatly improves the safety of operation.

Description

Technical Field

[0001] The invention relates to a 10kV high-voltage switch cabinet core phase auxiliary device and an operation method thereof, belonging to the technical field of high-voltage switch cabinet core phase auxiliary devices. Background Art

[0002] In the operation of electricity, the newly built, rebuilt and expanded substations and transmission lines, as well as the line maintenance and before the power is supplied to the user, must be subjected to the three-phase circuit phase check test to ensure that the phase sequence of the transmission line is consistent with the phase sequence required by the user's three-phase load. Phase check is for two power sources. When two power sources need to supply power to the same electrical equipment, they must be checked at the parallel point when they are put into use. If the two power sources need to be reversed in parallel, if the phase check is not done, the phase sequence may be inconsistent due to installation and wiring errors, causing short circuit accidents and affecting normal power supply. If the two power sources need to be shut down and reversed, if the phase check is not done, the three-phase equipment may not operate normally due to inconsistent phase sequence, such as the reversal of the motor. Therefore, when the second power source is put into use, it must be checked with the first power source.

[0003] In normal use, when the circuit breaker trolley is pushed forward, the steel groove of the trumpet-shaped groove on the trolley makes the driving pin of the baffle switch in the switch cabinet rotate to a certain angle to open the baffle at the static contact in the switch cabinet, so that the dynamic and static contacts can contact and reach the test position to the hot standby position. Phase checking operation steps: open the baffle - keep the baffle in the open state - check the phase - close the baffle - end. At present, the phase checking methods used are as follows:

[0004] 1) Nuclear phase trolley: The nuclear phase trolley includes a base, on which are provided supporting travel wheels, a nuclear phase channel frame and a baffle opening device with an open front end. The advantages of this nuclear phase trolley are safety and standard, but the disadvantages are high cost, large size, heavy weight, and at least 4 people are required to complete the transportation.

[0005] 2) Use insulating rods or special tools for support: With the help of insulating rods or special tools, support or clamp the baffle switch so that the baffle is in the open position to facilitate phase checking. The advantage of this method is that the tool is easy to carry, simple and quick, but there are great safety hazards. Due to the lack of effective isolation, the operator's limbs can easily reach into the switch cabinet and cause electric shock. In addition, the use of this method requires the operator to have sufficient experience and tacit cooperation. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a 10kV high-voltage switch cabinet nuclear phase auxiliary device and an operation method thereof to solve the problems existing in the above-mentioned prior art.

[0007] The technical solution adopted by the present invention is: a 10kV high-voltage switch cabinet core phase auxiliary device, including a transparent isolation baffle, a magnetic seat and a top rod, two magnetic seats are installed on the inner two sides above the transparent isolation baffle, two top rods are used, the inner end is provided with a trumpet-shaped square frame for clamping the baffle switch drive pin, and the outer end is detachably inserted into two installation holes set on both sides below the transparent isolation baffle, a locking pin hinged to the lock hole on the switch cabinet is installed in the middle of the bottom side of the transparent isolation baffle, and a core phase hole is set in the middle of the transparent isolation baffle.

[0008] Preferably, a transparent nuclear instrument installation cavity is arranged on the outer side of the transparent isolation baffle, the upper end of the nuclear instrument installation cavity is open, the nuclear instrument installation cavity is located above the nuclear hole, and a U-shaped notch is arranged on the front side wall of the nuclear instrument installation cavity, and the U-shaped notch exposes the display screen and operation buttons of the nuclear instrument.

[0009] Preferably, the transparent isolation baffle is configured as a transverse folding structure, which is formed by a plurality of transparent plates connected by hinges.

[0010] Preferably, the above-mentioned 10kV high-voltage switch cabinet nuclear phase auxiliary device also includes a storage box for placing the nuclear phase auxiliary device.

[0011] Preferably, the push rod is provided with an annular boss near the outer end, and the annular boss is larger than the diameter of the mounting hole.

[0012] Preferably, the mounting hole is configured as a long strip hole structure.

[0013] Preferably, the locking pin comprises a scissor-type elastic opening clamp and a hinged frame, a compression spring is installed between two outer handles of the elastic opening clamp, the hinge of the elastic opening clamp is hinged in the hole of the hinged frame, a limiting clamp is arranged on the outer side of the opening portion at the front end of the elastic opening clamp, and the upper end of the hinged frame is hinged to the bottom of the transparent isolation baffle.

[0014] An operating method for a 10kV high-voltage switch cabinet nuclear phase auxiliary device, the method comprising the following steps:

[0015] 1) Take out two push rods from the storage box, adjust them to the set length, and hang the trumpet-shaped square frame of the push rod on the two driving pins on the baffle switch;

[0016] 2) Unfold the folded transparent isolation baffle, insert the lock pin at the bottom of the transparent isolation baffle into the lock hole of the switch cabinet, and insert the outer end of the top rod into the two mounting holes at the bottom of the transparent isolation baffle. At this time, the transparent isolation baffle is in a tilted state facing outward and upward;

[0017] 3) Hold the upper end of the transparent isolation baffle and push it from the inclined state to the vertical state. During this process, the push rod moves and rotates the two driving pins of the baffle switch of the switch cabinet relative to each other in the vertical direction under the push of the transparent isolation baffle, thereby opening the switch cabinet static contact baffle and exposing the static contact;

[0018] 4) After the transparent isolation baffle is in the vertical position and close to the switch cabinet, turn on the switch on the magnetic base, the magnetic base and the switch cabinet are automatically attracted to fix the transparent isolation baffle on the isolation cabinet, and open the nuclear phase instrument host and install it in the transparent nuclear phase instrument installation cavity on the transparent isolation baffle;

[0019] 5) Wear insulating gloves and insert the two signal collectors of the nuclear phase instrument through the nuclear phase holes on the transparent isolation baffle to complete the nuclear phase work.

[0020] Beneficial effects of the present invention: Compared with the prior art, the effects of the present invention are as follows:

[0021] (1) The phase verification auxiliary device of the present invention can easily open the static contact baffle according to the lever principle formed by the push rod, the lock pin and the baffle during the process of driving the baffle switch to open the baffle. The transparent isolation baffle is finally attached to the switch cabinet through the magnetic seat to realize the installation of the entire equipment. At this time, the phase verification operation is performed through the phase verification instrument. The phase verification auxiliary device is light in weight and easy to install. The installation saves time and effort. The transparent structure makes it easy to see the connection between the detector of the phase verification instrument and the internal static contact during the verification process, thereby improving the phase verification efficiency and operation accuracy. The trumpet-shaped square frame structure is convenient for hanging on the two driving pins on the baffle switch. During the inward pushing process, the two push pins are squeezed by the two slopes to drive the connecting rod mechanism to open the baffle. It is simple and easy to use. No guardian is required. Only one person is needed to complete the phase verification, thereby improving work efficiency. The transparent isolation baffle can be operated from a long distance, which greatly improves the operation safety.

[0022] 2) A transparent nuclear phase meter installation cavity with a U-shaped notch is set up to facilitate the wireless high-voltage nuclear phase meter host to keep close to its detector, improve the stability and reliability of data transmission, and facilitate key operation and reading. The U-shaped notch also makes it easy to take the nuclear phase meter host;

[0023] 3) The isolation transparent baffle is set to a folding structure for easy storage;

[0024] 4) The storage box is convenient for storing the various parts of the auxiliary device after disassembly to avoid loss;

[0025] 5) In the lock pin structure, after pressing the handle, the front end moves inward and is inserted into the horizontal bar lock hole at the front end of the switch cabinet. After releasing the handle, it is clamped in the lock hole by the limit card platform and connected by the hinge frame to form a hinge support point. The connection is stable and reliable, which facilitates the rapid installation of the transparent isolation baffle and the rapid opening of the switch baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an isometric schematic diagram of the present invention;

[0027] Figure 2 It is another perspective schematic diagram of the present invention;

[0028] Figure 3 It is a schematic diagram of the connection structure at the mounting hole;

[0029] Figure 4 It is a rear view structural schematic diagram of the present invention;

[0030] Figure 5 for Figure 3 AA section connection diagram. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] Example 1: Figure 1-Figure 5 As shown, a 10kV high-voltage switch cabinet nuclear phase auxiliary device comprises a transparent isolation baffle 1, a magnetic seat 2 and an insulating top rod 3. Two magnetic seats 2 are installed on both sides of the upper inner part of the transparent isolation baffle 1. Two top rods 3 are used. A trumpet-shaped square frame 4 for clamping the baffle switch driving pin is arranged at the inner end, and the outer end is detachably plugged into two mounting holes 5 arranged on both sides of the lower side of the transparent isolation baffle 1. A locking pin 6 hinged to the lock hole on the switch cabinet is installed in the middle of the bottom side of the transparent isolation baffle 1. A nuclear phase hole 7 larger than the detector size of the nuclear phase instrument is arranged in the middle of the transparent isolation baffle 1. The detector is connected to the insulating operating rod of the nuclear phase instrument. The trumpet-shaped square frame 4 comprises a front V-shaped section and a rear horizontal section arranged in sequence. The two driving pins of the baffle switch are squeezed in the V-shaped section, so that the baffle at the static contact is pulled open through the connecting rod structure connected by the driving pin. The horizontal section is arranged to facilitate squeezing the driving pin to keep the driving pin stable, avoid stress on the top rod, and increase the load on the magnetic seat.

[0033] The mandrel 3 is provided with an annular boss 10 near the outer end. The annular boss 10 is larger than the diameter of the mounting hole 5. The annular boss is connected to the mandrel by a threaded connection, which is convenient for adjustment at different positions, thereby adapting to different switch cabinets and having a wider range of applications. Figure 3 As shown, the inner side is a bell mouth structure, which is convenient for maintaining a certain tilt angle with the transparent isolation baffle during the process of pushing the top rod. The mounting hole 5 is set as a long strip hole structure to facilitate adapting to switch cabinets of different widths.

[0034] Preferably, a transparent nuclear phase instrument installation cavity 8 is arranged on the outer side of the transparent isolation baffle 1, the upper end of the nuclear phase instrument installation cavity 8 is open, the transparent nuclear phase instrument installation cavity 8 is located above the nuclear phase hole 7, and a U-shaped notch 9 is arranged on the front side wall of the transparent nuclear phase instrument installation cavity 8, the U-shaped notch 9 exposes the display screen and operation buttons of the nuclear phase instrument, and the transparent nuclear phase instrument installation cavity with a U-shaped notch facilitates the wireless high-voltage nuclear phase instrument host to maintain a close distance with its detector, improves the stability and reliability of data transmission, and is also convenient for button operation and reading. The U-shaped notch also facilitates taking the nuclear phase instrument host.

[0035] Preferably, the transparent isolation baffle 1 is configured as a transverse folding structure, which is formed by a plurality of transparent plates connected by hinges.

[0036] Preferably, the above-mentioned 10kV high-voltage switch cabinet nuclear phase auxiliary device also includes a storage box for placing the nuclear phase auxiliary device, and the storage box is convenient for storing various components of the auxiliary device after disassembly to avoid loss.

[0037] Preferably, the locking pin 6 comprises a scissor-type elastic opening clamp 11 and a hinged frame 13, a compression spring 12 is installed between the two handles on the outside of the elastic opening clamp 13, the hinge of the elastic opening clamp 11 is hinged in the hole of the hinged frame 13, a limiting card platform 14 is arranged on the outside of the opening part of the front end of the elastic opening clamp 11, and the upper end of the hinged frame 13 is hinged to the bottom of the transparent isolation baffle 1. The locking pin of this structure moves inward at the front end after pressing the handle and is inserted into the horizontal strip lock hole at the front end of the switch cabinet. After releasing the handle, the locking pin is clamped in the lock hole by the limiting card platform, and the hinged support point is connected by the hinged frame. The connection is stable and reliable, which facilitates the rapid installation of the transparent isolation baffle and the rapid opening of the switch baffle.

[0038] Embodiment 2: A method for operating a 10kV high-voltage switch cabinet nuclear phase auxiliary device, the method comprising the following steps:

[0039] 1) Take out two push rods from the storage box, adjust them to the set length, and hang the trumpet-shaped square frame of the push rod on the two driving pins on the baffle switch;

[0040] 2) Unfold the folded transparent isolation baffle, insert the lock pin at the bottom of the transparent isolation baffle into the lock hole of the switch cabinet, and insert the outer end of the top rod into the two mounting holes at the bottom of the transparent isolation baffle. At this time, the transparent isolation baffle is in a tilted state facing outward and upward;

[0041] 3) Hold the upper end of the transparent isolation baffle and push it from the inclined state to the vertical state. During this process, the push rod moves and rotates the two driving pins of the baffle switch of the switch cabinet relative to each other in the vertical direction under the push of the transparent isolation baffle, thereby opening the switch cabinet static contact baffle and exposing the static contact;

[0042] 4) After the transparent isolation baffle is in the vertical position and close to the switch cabinet, turn on the switch on the magnetic base, the magnetic base and the switch cabinet are automatically attracted to fix the transparent isolation baffle on the isolation cabinet, and open the nuclear phase instrument host and install it in the transparent nuclear phase instrument installation cavity on the transparent isolation baffle;

[0043] 5) Wear insulating gloves and insert the two signal collectors of the wireless high-voltage nuclear phase instrument through the nuclear phase holes on the transparent isolation baffle to complete the nuclear phase work.

[0044] The present invention has the following advantages:

[0045] 1. Foldable design, easy to carry;

[0046] 2. It is convenient to reserve enough margin to meet the nuclear phase work of all 10kV high-voltage switchgear, which is more practical;

[0047] 3. Easy to use. Without the guardian, only one person can complete the verification, which improves work efficiency;

[0048] 4. The design of transparent isolation baffle prevents operators from reaching deep into the switch cabinet, making the nuclear phase more intuitive and safer.

[0049] To sum up, the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A 10kV high voltage switch cabinet nuclear phase auxiliary device, characterized in that: The invention comprises a transparent isolation baffle (1), a magnetic seat (2) and a top rod (3), wherein two magnetic seats (2) are installed on both sides of the upper inner part of the transparent isolation baffle (1), two top rods (3) are used, the inner end of which is provided with a trumpet-shaped square frame (4) for clamping the baffle switch drive pin, and the outer end is detachably plugged into two mounting holes (5) arranged on both sides of the lower part of the transparent isolation baffle (1), a locking pin (6) hinged to the locking hole on the switch cabinet is installed in the middle of the bottom side of the transparent isolation baffle (1), and a nuclear phase hole (7) is arranged in the middle of the transparent isolation baffle (1); a transparent nuclear phase instrument installation cavity (8) is arranged on the outer side of the transparent isolation baffle (1), and the upper part of the nuclear phase instrument installation cavity (8) is provided with a transparent nuclear phase instrument installation cavity (8). The end is open, and a transparent nuclear phase instrument installation cavity (8) is located above the nuclear phase hole (7); a U-shaped notch (9) is arranged on the front side wall of the nuclear phase instrument installation cavity (8), and the U-shaped notch (9) exposes the display screen and operation buttons of the nuclear phase instrument; the locking pin (6) comprises a scissor-type elastic opening clamp (11) and a hinge frame (13); a compression spring (12) is installed between two handles outside the elastic opening clamp (11); the hinge of the elastic opening clamp (11) is hinged in the hole of the hinge frame (13); a limit clamping table (14) is arranged outside the opening part of the front end of the elastic opening clamp (11); and the upper end of the hinge frame (13) is hinged to the bottom of the transparent isolation baffle (1).

2. A 10kV high voltage switch cabinet nuclear phase auxiliary device according to claim 1, characterized in that: The transparent isolation baffle (1) is arranged as a transverse folding structure, and is formed by a plurality of transparent plates connected by hinges.

3. A 10kV high voltage switch cabinet nuclear phase auxiliary device according to claim 2, characterized in that: Also included is a storage box for placing nuclear phase auxiliary devices.

4. A 10kV high voltage switch cabinet nuclear phase auxiliary device according to claim 1, characterized in that: An annular boss (10) is provided near the outer end of the push rod (3), and the annular boss (10) is larger than the diameter of the mounting hole (5).

5. A 10kV high voltage switch cabinet nuclear phase auxiliary device according to claim 1, characterized in that: The mounting hole (5) is configured as a long strip hole structure.

6. The method for operating a 10kV high-voltage switch cabinet nuclear phase auxiliary device according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: 1) Take out two push rods from the storage box, adjust them to the set length, and hang the trumpet-shaped square frame of the push rod on the two driving pins on the baffle switch; 2) Unfold the folded transparent isolation baffle, insert the lock pin at the bottom of the transparent isolation baffle into the lock hole of the switch cabinet, and insert the outer end of the top rod into the two mounting holes at the bottom of the transparent isolation baffle. At this time, the transparent isolation baffle is in a tilted state facing outward and upward; 3) Hold the upper end of the transparent isolation baffle and push it from the inclined state to the vertical state. During this process, the push rod moves and rotates the two driving pins of the baffle switch of the switch cabinet relative to each other in the vertical direction under the push of the transparent isolation baffle, thereby opening the switch cabinet static contact baffle and exposing the static contact; 4) After the transparent isolation baffle is in the vertical position and close to the switch cabinet, turn on the switch on the magnetic base, the magnetic base and the switch cabinet are automatically attracted to fix the transparent isolation baffle on the isolation cabinet, and open the nuclear phase instrument host and install it in the transparent nuclear phase instrument installation cavity on the transparent isolation baffle; 5) Wear insulating gloves and insert the two signal collectors of the nuclear phase instrument through the nuclear phase holes on the transparent isolation baffle to complete the nuclear phase work.

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