A high-voltage nuclear phase meter performance parameter test system

Abstract

The application discloses a high-voltage nuclear phase meter performance parameter test system and relates to the field of transformers, which comprises a control host, a high-voltage phase-shifting power supply, a standard phase voltmeter, two nuclear phase meters and two transformer voltage dividers. The control host controls the high-voltage phase-shifting power supply to output A-phase signals and B-phase signals to an A-phase transformer and a B-phase transformer respectively. The transformer voltage divider is used to step up and divide the signals output by the high-voltage phase-shifting power supply. The two nuclear phase meters are used to test the stepped-up signals, and the standard phase voltmeter is used to detect the divided signals. The control host determines whether the phases of the two nuclear phase meters are in phase or out of phase, and then compares and analyzes the signals detected by the standard phase voltmeter respectively, so as to determine whether the functions of the nuclear phase meters are correct. The overall scheme is simple and feasible, solves the problem of high-voltage detection in a laboratory, and provides an effective basis for the function detection of nuclear phase meters.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and in particular to a high-voltage phase comparator performance parameter testing system. Background Technology

[0002] Phase comparison refers to the use of instruments or other means in a power system to verify whether the phase and phase sequence of two power sources or loops are the same; in other words, it involves measuring the phase difference during actual power operation. However, the quality of various phase comparison instruments on the market varies, making the calibration and verification of these instruments an urgent priority. High-voltage phase comparison instrument calibration and verification devices are the equipment used to calibrate and verify these instruments.

[0003] Currently, most high-voltage phase comparators in China are wireless, followed by wired types, with voltage ranges generally covering 0.4kV to 220kV. Domestic phase comparator manufacturers primarily use a 220V indoor low-voltage connection for self-testing. This method can only verify the phase comparator's in-phase test data and battery status, but cannot perform tests from other angles. Furthermore, this method cannot simulate the high-voltage environment of the phase comparator's transmitter, leading to differences in phase difference measurements under high-voltage and low-voltage conditions. Currently, high-voltage testing environments cannot be simulated in laboratories, posing a significant challenge to the functional testing of high-voltage phase comparators. Summary of the Invention

[0004] The purpose of this invention is to provide a high-voltage phase comparator performance parameter testing system to solve the problem mentioned in the background art that the function of traditional high-voltage phase comparators cannot be properly tested.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-voltage phase comparator performance parameter testing system, comprising a control host, a high-voltage phase-shifting power supply, a standard phase voltammeter, two phase comparators, and two transformer voltage dividers;

[0006] The control host is used to control the high-voltage phase-shifting power supply to output phase A and phase B signals to phase A transformer and phase B transformer respectively.

[0007] The two transformers and voltage dividers are used to boost and divide the A-phase and B-phase signals output by the high-voltage phase-shifting power supply, respectively.

[0008] The two phase comparators are used to test the boosted signals of phase A and phase B, respectively, and the standard phase volt-ampere meter is used to detect the divided signals of phase A and phase B.

[0009] The control host is also used to determine whether the phases of the two phase comparators are in phase or out of phase, and then compare and analyze them with the signals detected by the standard phase volt-ampere meter to verify whether the function of the phase comparator is correct.

[0010] Preferably, the transformer divider includes a transformer body, a test structure is fixedly installed on the top side of the transformer body, a fixing rod is fixedly installed on the top side of the test structure, a linkage structure is slidably installed on the fixing rod, and a limit structure is fixedly installed on one side of the fixing rod.

[0011] Preferably, the test structure includes a top cover, which is fixedly installed on the top side of the transformer body. A high-voltage booster and a high-voltage divider are symmetrically fixedly installed on the top side of the top cover. A pressure equalizing ball is fixedly installed on the top side of both the high-voltage booster and the high-voltage divider. The same copper busbar is fixedly installed on the top side of the two pressure equalizing balls. A phase comparator is movably installed on the copper busbar. Two limit blocks are movably installed on the copper busbar.

[0012] Preferably, four connecting blocks are symmetrically fixedly installed on the top side of the cover, and each of the four connecting blocks has a rotating hole. The same handle is rotatably installed on two rotating holes on the same side.

[0013] Preferably, the linkage structure includes a sliding rod, a sliding hole is provided on the fixed rod, the sliding rod is slidably installed in the sliding hole, one end of two linkage rods is rotatably installed on the sliding rod, the other end of the two linkage rods is rotatably installed with a positioning slider, the two positioning sliders are slidably installed on a copper busbar, and a pull rod is fixedly installed on one side of the sliding rod.

[0014] Preferably, the positioning slider has a sliding groove, the copper busbar is slidably installed in the sliding groove, the inner walls on both sides of the sliding hole are provided with limit grooves, and a fixing strip is slidably installed in each of the two limit grooves. The two fixing strips are respectively fixedly installed on both sides of the sliding rod.

[0015] Preferably, the limiting structure includes two fixing plates, both of which are fixedly installed on one side of the fixing rod. A limiting rod is fixedly installed on the top side of each of the two fixing plates. The same sliding toothed plate is slidably installed on the two limiting rods. A limiting toothed rack is fixedly installed on the bottom side of the sliding rod. The sliding toothed plate meshes with the limiting toothed rack.

[0016] Preferably, the sliding toothed plate has two movable holes, and the two limiting rods are slidably installed in the two movable holes respectively.

[0017] Preferably, an auxiliary spring is slidably sleeved on the limiting rod, and the two ends of the auxiliary spring are respectively fixedly installed on the side of the fixed plate and the sliding toothed plate that are close to each other.

[0018] The beneficial effects of this invention are:

[0019] 1. The overall solution is simple and feasible, solving the problem of high-voltage testing in the laboratory and providing a valid basis for the functional testing of the phase comparator;

[0020] 2. In this invention, the high-voltage booster and the high-voltage divider are integrated into one unit through the design of the high-voltage booster, the high-voltage divider, and the copper busbar. Both adopt the same structure, with identical outer tubes and heights, thereby avoiding the tilting of the X and Y emitters of the phase comparator. Furthermore, the high-voltage booster and the high-voltage divider are connected by a copper busbar, which facilitates the hanging of the test sample without bending. No additional suspension brackets are required, and the structure is stable.

[0021] 3. In this invention, by setting up structures such as positioning sliders and sliding rods, the sliding rod can be pulled when the phase comparator is suspended. Under the action of the sliding rod, the two positioning sliders can be brought closer to each other. The positioning sliders that are brought closer to each other can clamp and wrap around the hook of the phase comparator, thereby avoiding the phenomenon of shaking and phase comparator displacement caused by touching the transformer body during the test, and further improving the stability of the test. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a high-voltage phase comparator performance parameter testing system proposed in this invention.

[0023] Figure 2 This is a schematic diagram of the high-voltage divider of a high-voltage phase comparator performance parameter testing system proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the fixing rod portion of the high-voltage divider proposed in this invention;

[0025] Figure 4 This is a partial structural diagram of the fixing rod portion of the high-voltage divider proposed in this invention;

[0026] Figure 5 This is a cross-sectional view of the sliding rod portion of the high-voltage divider proposed in this invention.

[0027] Figure 6 This is a cross-sectional view of the fixing rod portion of the high-pressure voltage divider proposed in this invention.

[0028] In the diagram: 100, Transformer body; 200, Top cover; 201, High-voltage step-up transformer; 202, High-voltage divider; 203, Connecting block; 204, Handle; 205, Equalizing ball; 206, Copper busbar; 207, Limiting block; 208, Rotating hole; 209, Phase comparator; 300, Fixed rod; 301, Sliding rod; 302, Linkage rod; 303, Positioning slider; 304, Sliding groove; 305, Pull rod; 306, Sliding hole; 307, Limiting groove; 308, Fixed strip; 400, Fixed plate; 401, Limiting rod; 402, Sliding toothed plate; 403, Limiting rack; 404, Movable hole; 405, Auxiliary spring. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] Reference Figure 1-6 A high-voltage phase comparator performance parameter testing system includes a control host, a high-voltage phase-shifting power supply, a standard phase volt-ampere meter, two phase comparators 209, and two transformer dividers. The control host controls the high-voltage phase-shifting power supply to output A-phase and B-phase signals to the A-phase transformer and B-phase transformer, respectively. The transformer dividers are used to boost and divide the signals output by the high-voltage phase-shifting power supply. The two phase comparators 209 are used to test the boosted signals, and the standard phase volt-ampere meters are used to detect the divided signals. The control host determines whether the phases of the two phase comparators are in phase or out of phase, and then compares and analyzes them with the signals detected by the standard phase volt-ampere meters to verify whether the phase comparators function correctly.

[0031] The two-phase voltage output lines of the high-voltage phase-shifting power supply (output 0-250V) are connected to the test transformer. The high-voltage end of the test transformer is connected in parallel with the high-voltage end of the voltage divider. The low-voltage arm output of the voltage divider is connected to a standard phase volt-ammeter. The low-voltage phase-shifting power supply and the standard phase volt-ammeter are connected to the computer's extended serial port via a 232 serial communication line.

[0032] The specific working principle is as follows:

[0033] 1. The high-voltage phase-shifting power supply control software controls the output phase, frequency, and amplitude of the phase-shifting power supply.

[0034] 2. The A-phase and B-phase output signals of the high-voltage phase-shifting power supply are output to two transformer dividers, including the A-phase transformer divider and the B-phase transformer divider. The A-phase transformer divider includes the A-phase high-voltage booster and the A-phase high-voltage divider; the B-phase transformer divider includes the B-phase high-voltage booster and the B-phase high-voltage booster.

[0035] 3. Before the test begins, first hang the X transmitter and Y transmitter of phase comparator 209 on phase A high voltage booster and phase B high voltage booster respectively.

[0036] 4. Connect the low-voltage output terminals of the A-phase high-voltage divider and the B-phase high-voltage divider, which are connected in parallel with the phase high-voltage booster, to a standard phase volt-ampere meter.

[0037] 5. The standard phase volt-ampere meter transmits the standard phase signal to the control host via serial port 232.

[0038] 6. After the test begins, the phase-shifting power supply control software in the control host sends the voltage and phase output required by the test phase comparator and the procedure to the phase-shifting power supply.

[0039] 7. The phase-shifting power supply outputs amplitude and phase signals to the A-phase high-voltage booster and the B-phase high-voltage booster according to the amplitude and phase signals issued by the software.

[0040] 8. The X and Y transmitters of the phase comparator, respectively attached to the A-phase high-voltage generator and the B-phase high-voltage generator, send the sampled phase, in-phase, and out-of-phase determination information to the receiving host or control host. The receiving host then transmits the information wirelessly to the control host.

[0041] 9. The high-voltage phase-shifting power supply control software simultaneously acquires the standard phase returned by the standard phase voltammeter.

[0042] 10. The high-voltage phase-shifting power supply control software determines whether the X and Y transmitters are in phase or out of phase based on the standard phase returned by the standard phase volt-ampere meter and in accordance with the regulations, and then compares it with the determination information returned by the receiving host. This verifies whether the phase comparator is functioning correctly.

[0043] This invention generates and outputs phase A and phase B signals using a high-voltage phase-shifting power supply in a laboratory setting. These signals are then stepped up by a transformer and detected by a phase comparator. After voltage division, the signals are tested using a standard phase volt-ampere meter. Finally, phase analysis is performed on the detected signals to determine the accuracy of the phase comparator. The overall solution is simple and feasible, solving the problem of high-voltage testing in the laboratory and providing a valid basis for the functional testing of phase comparators.

[0044] The transformer includes a transformer body 100, a test structure is fixedly installed on the top side of the transformer body 100, a fixing rod 300 is fixedly installed on the top side of the test structure, a linkage structure is slidably installed on the fixing rod 300, and a limit structure is fixedly installed on one side of the fixing rod 300.

[0045] The test structure includes an upper cover 200, which is fixedly installed on the top side of the transformer body 100. A high-voltage booster 201 and a high-voltage divider 202 are symmetrically fixedly installed on the top side of the upper cover 200. A voltage equalizing ball 205 is fixedly installed on the top side of both the high-voltage booster 201 and the high-voltage divider 202. A single copper busbar 206 is fixedly installed on the top side of both voltage equalizing balls 205. A phase comparator 209 is movably installed on the copper busbar 206, and two limit blocks 207 are movably installed on the copper busbar 206. The high voltage is boosted through the transformer body 100 and the upper cover 200. The transformer 201 and the high voltage divider 202 are installed together. The high voltage booster 201 and the high voltage divider 202 are connected by a copper busbar 206 to facilitate the suspension of the phase comparator 209. The high voltage booster 201 and the high voltage divider 202 are at the same height to prevent the copper busbar 206 from tilting, so that the suspension of the phase comparator 209 can be more stable. By pulling the handles 204 on both sides, the handles 204 can rotate in the rotation holes 208 on the connecting block 203, which facilitates the handling and movement of the transformer body 100.

[0046] Four connecting blocks 203 are symmetrically fixedly installed on the top side of the top cover 200. Each of the four connecting blocks 203 has a rotating hole 208. The same handle 204 is rotatably installed on two rotating holes 208 on the same side. Pulling the handles 204 on both sides allows the handles 204 to rotate within the rotating holes 208 on the connecting blocks 203, thereby facilitating the handling and movement of the transformer body 100.

[0047] The linkage structure includes a sliding rod 301. A sliding hole 306 is provided on the fixed rod 300. The sliding rod 301 is slidably installed in the sliding hole 306. Two linkage rods 302 are rotatably installed on one end of the sliding rod 301. Positioning sliders 303 are rotatably installed on the other end of each linkage rod 302. The two positioning sliders 303 are slidably installed on the copper busbar 206. A pull rod 305 is fixedly installed on one side of the sliding rod 301. Pulling the pull rod 305 causes the sliding rod 301 to slide in the sliding hole 306 on the fixed rod 300. While the sliding rod 301 is sliding, it will cause the fixing bars 308 on both sides to slide in the two limiting grooves 307 respectively, thus ensuring that the sliding rod 301 will not deviate during the sliding process. During the sliding process, the sliding rod 301 will cause one end of the two linkage rods 302 to rotate, so that the other end of the two linkage rods 302 will drive the two positioning sliders 303 to slide on the copper busbar 206 through the two sliding grooves 304 and move closer to each other.

[0048] The positioning slider 303 has a sliding groove 304, and the copper busbar 206 is slidably installed in the sliding groove 304. The inner walls on both sides of the sliding hole 306 are provided with limiting grooves 307. Fixing strips 308 are slidably installed in the two limiting grooves 307. The two fixing strips 308 are respectively fixedly installed on both sides of the sliding rod 301. During the sliding process of the sliding rod 301, it will drive one end of the two linkage rods 302 to rotate, so that the other end of the two linkage rods 302 will drive the two positioning sliders 303 to slide on the copper busbar 206 through the two sliding grooves 304 and move closer to each other.

[0049] The limiting structure includes two fixed plates 400, both of which are fixedly installed on one side of a fixed rod 300. A limiting rod 401 is fixedly installed on the top side of each of the two fixed plates 400. A sliding toothed plate 402 is slidably installed on both limiting rods 401. A limiting rack 403 is fixedly installed on the bottom side of the sliding rod 301. The sliding toothed plate 402 meshes with the limiting rack 403. After suspending the phase-shifting power supply, the sliding toothed plate 402 can be pressed downwards, and the sliding toothed plate 402 will move through two movable... The hole 404 slides on the two limiting rods 401 respectively. While sliding, the sliding toothed plate 402 compresses the two auxiliary springs 405 and moves away from the limiting rack 403 on the sliding rod 301. At this time, the restriction on the sliding rod 301 can be released. After adjustment, the sliding toothed plate 402 is released. At this time, the two auxiliary springs 405 will push the sliding toothed plate 402 back to its original position. The reset sliding toothed plate 402 will re-engage with the limiting rack 403 on the sliding rod 301, thereby restricting the position of the sliding rod 301 again.

[0050] The sliding toothed plate 402 has two movable holes 404, and two limiting rods 401 are slidably installed in the two movable holes 404 respectively. When the sliding toothed plate 402 is pressed down, the sliding toothed plate 402 will slide on the two limiting rods 401 through the two movable holes 404 respectively.

[0051] An auxiliary spring 405 is slidably sleeved on the limiting rod 401. The two ends of the auxiliary spring 405 are respectively fixedly installed on the side of the fixed plate 400 and the sliding toothed plate 402 that are close to each other. When the sliding toothed plate 402 slides, it will compress the two auxiliary springs 405. When the sliding toothed plate 402 is released, the two auxiliary springs 405 will push the sliding toothed plate 402 back to its original position.

[0052] Working principle of this invention:

[0053] The high-voltage step-up transformer 201 and the high-voltage divider 202 are installed together by the transformer body 100 and the top cover 200. The high-voltage step-up transformer 201 and the high-voltage divider 202 are connected by a copper busbar 206 to facilitate the suspension of the phase comparator 209. The high-voltage step-up transformer 201 and the high-voltage divider 202 are at the same height to prevent the copper busbar 206 from tilting, so that the suspension of the phase comparator 209 can be more stable. By pulling the handles 204 on both sides, the handles 204 can rotate in the rotation holes 208 on the connecting block 203, which facilitates the handling and movement of the transformer body 100.

[0054] After suspending the phase-shifting power supply, the sliding toothed plate 402 can be pressed down. The sliding toothed plate 402 will slide on the two limiting rods 401 through the two movable holes 404 respectively. While sliding, the sliding toothed plate 402 will compress the two auxiliary springs 405 and move away from the limiting rack 403 on the sliding rod 301. At this time, the restriction on the sliding rod 301 can be released. Pulling the pull rod 305 will cause the sliding rod 301 to slide in the sliding hole 306 on the fixed rod 300. While sliding, the sliding rod 301 will also cause the fixed bars 308 on both sides to slide in the two limiting grooves 307 respectively, thus ensuring that the sliding rod 301 will not deviate during the sliding process. During the sliding process of 301, one end of the two linkage rods 302 will rotate, causing the other end of the two linkage rods 302 to drive the two positioning sliders 303 to slide on the copper busbar 206 through the two sliding grooves 304 and move closer to each other. After adjustment, the sliding tooth plate 402 is released. At this time, the two auxiliary springs 405 will push the sliding tooth plate 402 back to its original position. The reset sliding tooth plate 402 will re-engage with the limiting rack 403 on the sliding rod 301, thereby restricting the position of the sliding rod 301 again. At the same time, the two positioning sliders 303 that move closer to each other can wrap and hold the hook of the phase comparator 209, further improving the stability of the test.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-voltage phase comparator performance parameter testing system, characterized in that: Includes a control host, a high-voltage phase-shifting power supply, a standard phase volt-ampere meter, two phase comparators, and two transformer dividers; The control host is used to control the high-voltage phase-shifting power supply to output phase A and phase B signals to phase A transformer and phase B transformer respectively. The two transformers and voltage dividers are used to boost the A-phase and B-phase signals output by the high-voltage phase-shifting power supply, and then divide the boosted signals. The two phase comparators are used to test the boosted signals of phase A and phase B, respectively, and the standard phase volt-ampere meter is used to detect the divided signals of phase A and phase B. The control host is also used to determine whether the phases of the two phase comparators are in phase or out of phase, and then compare and analyze them with the signals detected by the standard phase volt-ampere meter to verify whether the function of the phase comparator is correct. The transformer divider includes a transformer body (100), and a test structure is fixedly installed on the top side of the transformer body (100). The test structure includes a top cover (200), which is fixedly installed on the top side of the transformer body (100). A high-voltage step-up transformer (201) and a high-voltage divider (202) are symmetrically fixedly installed on the top side of the top cover (200). Both the high-voltage booster (201) and the high-voltage divider (202) are fixedly mounted with equalizing balls (205) on their top sides. The same copper busbar (206) is fixedly mounted on the top sides of the two equalizing balls (205). A phase comparator (209) is movably mounted on the copper busbar (206). Two limit blocks (207) are movably mounted on the copper busbar (206). A fixed rod (300) is provided above the top cover (200). A linkage structure is slidably installed on the fixed rod (300). The linkage structure includes a sliding rod (301). A sliding hole (306) is opened on the fixed rod (300). The sliding rod (301) is slidably installed in the sliding hole (306). One end of two linkage rods (302) is rotatably installed on the sliding rod (301). The other end of the two linkage rods (302) is rotatably installed with a positioning slider (303). The two positioning sliders (303) are slidably installed on the copper busbar (206) and are respectively located on both sides of the phase comparator (209). A pull rod (305) is fixedly installed on the side of the sliding rod (301) away from the positioning slider (303). A limit structure is fixedly installed on the side of the fixed rod (300) away from the positioning slider (303), and the limit structure is located below the pull rod (305).

2. The high-voltage phase comparator performance parameter testing system according to claim 1, characterized in that: Four connecting blocks (203) are symmetrically fixedly installed on the top side of the cover (200). Each of the four connecting blocks (203) has a rotating hole (208). The same handle (204) is rotatably installed on two rotating holes (208) on the same side.

3. The high-voltage phase comparator performance parameter testing system according to claim 1, characterized in that: The positioning slider (303) is provided with a sliding groove (304), and the copper busbar (206) is slidably installed in the sliding groove (304). Limiting grooves (307) are provided on both sides of the inner wall of the sliding hole (306). Fixing strips (308) are slidably installed in both limiting grooves (307), and the two fixing strips (308) are respectively fixedly installed on both sides of the sliding rod (301).

4. The high-voltage phase comparator performance parameter testing system according to claim 1, characterized in that: The limiting structure includes two fixed plates (400), both fixed plates (400) are fixedly installed on the side of the fixed rod (300) away from the positioning slider (303), and a limiting rod (401) is fixedly installed on the top side of both fixed plates (400). The same sliding toothed plate (402) is slidably installed on the two limiting rods (401). A limiting rack (403) is fixedly installed on the bottom side of the sliding rod (301), and the sliding toothed plate (402) meshes with the limiting rack (403).

5. The high-voltage phase comparator performance parameter testing system according to claim 4, characterized in that: The sliding toothed plate (402) has two movable holes (404), and two limiting rods (401) are slidably installed in the two movable holes (404).

6. The high-voltage phase comparator performance parameter testing system according to claim 4, characterized in that: An auxiliary spring (405) is slidably sleeved on the limiting rod (401). The two ends of the auxiliary spring (405) are respectively fixedly installed on the side of the fixed plate (400) and the sliding toothed plate (402) that are close to each other.

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