Auxiliary device for checking primary phase sequence

Abstract

The utility model discloses an auxiliary device for checking a primary phase sequence. The auxiliary device comprises a base arranged in a generator cabinet and an expansion mechanism arranged on the base and used for pushing an upper partition plate and a lower partition plate in the generator cabinet to move. According to the auxiliary device for checking the primary phase sequence, the upper partition plate and the lower partition plate can be easily opened, the working efficiency of checking the primary phase sequence is improved, the test time is greatly saved, meanwhile, the safety risk in the process of opening the upper partition plate and the lower partition plate is also avoided, and the auxiliary device can be recycled, so that resources are saved.

Description

Technical Field

[0001] This utility model belongs to the field of experimental equipment technology. Specifically, this utility model relates to an auxiliary device for verifying a phase sequence. Background Technology

[0002] Before the generator set is put into operation for the first time or before two main transformers are put into parallel operation, it is usually necessary to check the phase sequence once.

[0003] The conventional approach is to pull out the circuit breaker trolley and pry open the upper and lower partitions inside the generator cabinet using cable ties or insulating rods. This prying process is cumbersome, and the upper port of the upper partition and the lower port of the lower partition are energized on one or both sides, posing a safety hazard during operation, wasting time, and resulting in low verification efficiency.

[0004] Chinese Patent Application No. 201611267745.X discloses an automatic phase sequence verification device for an intelligent distribution network secondary system, relating to the field of power equipment technology. The device includes a power supply unit, voltage transformers, current transformers, a data acquisition device, an A / D conversion device, a processor, and a display device. When the phase sequence of the distribution automation terminal is verified after installation, the voltage transformers, current transformers, and the phase line to be tested in the automation terminal are connected. Then, the leads of the data acquisition device are connected to the voltage transformers and current transformers. After connection, the device is turned on to acquire the three-phase current values, three-phase current phase values, and voltage phase values ​​of the phase line to be tested in the automation terminal. Based on the acquired parameters, a comprehensive judgment is made to determine whether the phase sequence is correct, thus completing the phase sequence verification work of the automation terminal. Using this device simplifies the acceptance operation steps and improves acceptance efficiency.

[0005] It is desirable to provide an improved auxiliary device for verifying the primary phase sequence, particularly regarding how to improve the efficiency of primary phase sequence verification. Utility Model Content

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides an auxiliary device for verifying the primary phase sequence, with the purpose of improving the efficiency of primary phase sequence verification.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an auxiliary device for checking the phase sequence, including a base for placing inside the generator cabinet and an extension mechanism disposed on the base for moving the upper and lower partitions inside the generator cabinet.

[0008] The extension mechanism includes an upper support rod and a lower support rod disposed on the base. The upper support rod is configured to push the upper partition to move, and the lower support rod is configured to push the lower partition to move.

[0009] The upper support rod is configured to extend obliquely upward toward the base, and the lower support rod is configured to extend obliquely downward toward the base.

[0010] At least two upper support rods are provided.

[0011] At least two lower support rods are provided.

[0012] The base is equipped with rollers.

[0013] The auxiliary device for verifying the phase sequence of this utility model can easily open the upper and lower partitions, improve the efficiency of the phase sequence verification work, greatly save test time, and avoid the safety risks in the process of opening the upper and lower partitions. In addition, the auxiliary device can be reused, saving resources. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of the auxiliary device for verifying the phase sequence of this utility model;

[0016] The diagram is marked as follows:

[0017] 1. Base; 2. Casters; 3. Upper support rod; 4. Lower support rod. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0019] like Figure 1 As shown, this utility model provides an auxiliary device for verifying the phase sequence, including a base 1 for placement inside a generator cabinet and an extension mechanism disposed on the base 1 for moving the upper and lower partitions inside the generator cabinet.

[0020] Specifically, such as Figure 1 As shown, four rollers 2 are installed on the base 1. Each roller 2 is rectangular and rotatable. When the base 1 moves horizontally within the generator cabinet, the rollers 2 contact the inner wall of the generator cabinet and roll, providing support for the base 1 and allowing it to be easily moved. The dimensions of the base 1 are determined based on the size of the circuit breaker trolley base plate.

[0021] like Figure 1As shown, the extension mechanism includes an upper support rod 3 and a lower support rod 4 mounted on a base 1. The upper support rod 3 is configured to push the upper partition to move, and the lower support rod 4 is configured to push the lower partition to move. The upper support rod 3 extends obliquely upward toward the base 1, and the lower support rod 4 extends obliquely downward toward the base 1. The length direction of the upper support rod 3 forms an acute angle with the direction of movement of the base 1. The first end of the upper support rod 3 is fixedly connected to one end of the base 1, and the height of the second end of the upper support rod 3 is greater than the height of the first end. The first and second ends of the upper support rod 3 are opposite ends in the length direction of the upper support rod 3. Similarly, the length direction of the lower support rod 4 forms an acute angle with the direction of movement of the base 1. The first end of the lower support rod 4 is fixedly connected to one end of the base 1 (both the upper support rod 3 and the lower support rod 4 are connected to the same end of the base 1), and the height of the second end of the lower support rod 4 is less than the height of the first end. The first and second ends of the lower support rod 4 are opposite ends in the length direction of the lower support rod 4. There is an angle between the length direction of the upper support rod 3 and the length direction of the lower support rod 4, and the upper support rod 3 and the lower support rod 4 are distributed in a V shape.

[0022] like Figure 1 As shown, two upper support rods 3 are provided, and all upper support rods 3 are arranged sequentially along the width direction of the base 1. Two lower support rods 4 are provided, and all lower support rods 4 are arranged sequentially along the width direction of the base 1. The width direction of the base 1 is horizontal and perpendicular to the moving direction of the base 1.

[0023] When using this simple auxiliary device to check the phase sequence, the auxiliary device simulates a circuit breaker trolley. Simply place the auxiliary device inside the generator cabinet and then slowly push it to the working position. During the slow advancement of the auxiliary device, the upper support rod 3 and the lower support rod 4 at the front end contact the upper and lower partitions respectively, applying a pushing force to the upper and lower partitions. The flared expansion mechanism will slowly open the upper and lower partitions, pushing them to move. After the auxiliary device reaches the working position, it will fully open the upper and lower partitions, increasing the distance between them.

[0024] After the phase sequence is checked, the auxiliary device is slowly pulled out. The upper support rod 3 and the lower support rod 4 separate from the upper and lower partitions. The upper and lower partitions will slowly return to their original state, which greatly saves test time and avoids safety risks during the process of opening the upper and lower partitions. In addition, the auxiliary device can be reused, saving resources.

[0025] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An auxiliary device for verifying the phase sequence, characterized in that, It includes a base for placement inside the generator cabinet and an extension mechanism disposed on the base for moving the upper and lower partitions inside the generator cabinet.

2. The auxiliary device for verifying the phase sequence according to claim 1, characterized in that, The extension mechanism includes an upper support rod and a lower support rod disposed on the base. The upper support rod is configured to push the upper partition to move, and the lower support rod is configured to push the lower partition to move.

3. The auxiliary device for verifying the phase sequence according to claim 2, characterized in that, The upper support rod is configured to extend obliquely upward toward the base, and the lower support rod is configured to extend obliquely downward toward the base.

4. The auxiliary device for verifying the phase sequence according to claim 2, characterized in that, At least two upper support rods are provided.

5. The auxiliary device for verifying the phase sequence according to claim 2, characterized in that, At least two lower support rods are provided.

6. The auxiliary device for verifying a single phase sequence according to any one of claims 1 to 5, characterized in that, The base is equipped with rollers.

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