Electrical insulation aging monitoring device

Abstract

The utility model discloses an electrical insulation aging monitoring device, which relates to the technical field of insulation detection devices and comprises a fixed frame, the outer wall of the fixed frame is in transmission connection with a movable frame, the outer wall of the movable frame is in transmission connection with a traction plate, the outer wall of the traction plate is fixedly connected with a supporting plate, and the outer wall of the supporting plate is fixedly connected with a supporting frame. The movable frame and the traction plate are controlled to move, the electric cylinder is matched to control the ultrasonic sensor to ascend and descend, and therefore three-axis movement control over the ultrasonic sensor is achieved, ultrasonic signals of equipment are received through the ultrasonic sensor, the ultrasonic signals are converted into electric signals to be analyzed, and the equipment quality is improved. Ultrasonic waves are transmitted in the insulating material, and the transmission characteristic and the attenuation degree of the ultrasonic waves are related to the insulation state, so that the position and the intensity of partial discharge can be judged, the aging degree and the defect position of insulation are judged, and real-time comprehensive monitoring is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of insulation detection device, especially to a kind of electrical insulation ageing monitoring device. BACKGROUND

[0002] Electrical insulation ageing monitoring device is a kind of equipment for real-time evaluation of electrical equipment insulation state, monitoring insulation ageing degree, electrical insulation is subjected to electric, heat, mechanical, chemical and other factors in long-term operation process, will gradually age, insulation performance decline can lead to the leakage current of equipment increases, partial discharge intensifies and other problems, affect the normal operation of equipment, reduce the service life of equipment, currently commonly used various partial discharge detection techniques, such as pulse current method, ultrasonic method, ultrahigh frequency method etc., detect partial discharge signal inside insulation, partial discharge is one of important forms of expression of insulation ageing, through the analysis of the amplitude, frequency, phase and other parameters of partial discharge, can in-depth understand the ageing degree and defect position of insulation.

[0003] But in prior art, existing electrical insulation ageing detection is difficult to carry out real-time comprehensive detection to electrical equipment, for large and complex electrical equipment, such as large transformer, high-voltage switch cabinet etc., although detection device can detect insulation ageing or partial discharge phenomenon, it is difficult to accurately determine the specific position of fault occurrence, bring great difficulty to subsequent maintenance and fault elimination work, prolong equipment downtime. UTILITY MODEL CONTENT

[0004] The utility model aims at solving, existing electrical insulation ageing detection is difficult to carry out real-time comprehensive detection to electrical equipment, for large and complex electrical equipment, such as large transformer, high-voltage switch cabinet etc., although detection device can detect insulation ageing or partial discharge phenomenon, it is difficult to accurately determine the specific position of fault occurrence, bring great difficulty to subsequent maintenance and fault elimination work, prolong equipment downtime problem, and propose a kind of electrical insulation ageing monitoring device.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of electrical insulation ageing monitoring device, including fixed frame, the outer wall of the fixed frame is connected with movable frame, the outer wall of the movable frame is connected with traction plate, the outer wall of the traction plate is fixedly connected with supporting plate, the outer wall of the supporting plate is fixedly connected with support frame, the side of the support frame is provided with signal processor, the signal processor is installed on the outer wall of lead screw two, the outer wall of the support frame is installed with electric cylinder, the telescopic rod one end of the electric cylinder is fixedly connected with traction head, the outer wall of the traction head is fixedly connected with limit board, the outer wall of the limit board is fixedly connected with connecting plate, the side of the connecting plate is installed with ultrasonic sensor, the ultrasonic sensor and signal processor are electrically connected.

[0006] Preferably, both ends of the fixed frame are fixedly connected with mounting plates, and the bottom surface of the fixed frame is provided with a sliding groove one, and the inner wall of the sliding groove one is rotatably connected with a lead screw one.

[0007] Preferably, one end of the fixed frame is provided with a servo motor one, the output shaft end of the servo motor one is fixedly connected with one end of the sliding groove one, and the top of the movable frame is threadedly sleeved with the outer wall of the sliding groove one.

[0008] Preferably, the outer wall of the movable frame is provided with a sliding groove two, and the inner wall of the sliding groove two is rotatably connected with a lead screw two.

[0009] Preferably, one end of the movable frame is provided with a servo motor two, the output shaft end of the servo motor two is connected with one end of the lead screw two, and the top end of the traction plate is threadedly sleeved with the outer wall of the lead screw two.

[0010] Preferably, the outer wall of the movable frame is provided with a sliding groove two, and the inner wall of the sliding groove two is rotatably connected with a lead screw two.

[0011] Preferably, one end of the movable frame is provided with a servo motor two, the output shaft end of the servo motor two is connected with one end of the lead screw two, and the top end of the traction plate is threadedly sleeved with the outer wall of the lead screw two.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1、in the utility model, through control movable frame and traction plate position movement, cooperate electric jar control ultrasonic sensor and carry out the lifting, thereby realize the utility model to ultrasonic sensor's three axis movement control, utilize ultrasonic sensor receiving equipment's ultrasonic signal, and carry out the analysis with its conversion to electric signal, ultrasonic wave spreads in insulating material, its propagation characteristic and attenuation degree are related to insulating state, can be thus judging local discharge's position and intensity, thereby judging the aging degree and defect position of insulation, realizes real time comprehensive monitoring.

[0014] 2、in the utility model, through starting servo motor one drive lead screw one control movable frame and carry out position movement, through servo motor two control drive lead screw two rotation, control traction plate moves on movable frame, through utilize guide rod to ultrasonic sensor's lifting movement and carry out the limit orientation, improve ultrasonic sensor displacement control's accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure schematic diagram of the electrical insulation aging monitoring device is provided for the utility model;

[0016] Figure 2 A three-dimensional structure schematic diagram of the electrical insulation aging monitoring device is provided for the utility model; Figure 1 A structure enlarged view of A in the utility model;

[0017] Figure 3 This utility model provides a structural schematic diagram of a support frame for an electrical insulation aging monitoring device;

[0018] Figure 4 This utility model proposes an electrical insulation aging monitoring device. Figure 3 Enlarged view of the structure at point B in the middle.

[0019] Legend: 1. Fixed frame; 11. Mounting plate; 12. Slide groove one; 13. Servo motor one; 14. Lead screw one; 2. Movable frame; 21. Servo motor two; 22. Traction plate; 23. Slide groove two; 24. Lead screw two; 25. Support plate; 3. Support frame; 31. Fixed rod; 32. Guide rod; 4. Signal processor; 5. Ultrasonic sensor; 51. Connecting plate; 52. Limiting plate; 6. Electric cylinder; 61. Traction head. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides an electrical insulation aging monitoring device, including a fixed frame 1, a movable frame 2 connected to the outer wall of the fixed frame 1, a traction plate 22 connected to the outer wall of the movable frame 2, a support plate 25 fixedly connected to the outer wall of the traction plate 22, a support frame 3 fixedly connected to the outer wall of the support plate 25, a signal processor 4 provided on one side of the support frame 3, the signal processor 4 being installed on the outer wall of the lead screw 24, an electric cylinder 6 being installed on the outer wall of the support frame 3, a traction head 61 fixedly connected to one end of the telescopic rod of the electric cylinder 6, a limit plate 52 fixedly connected to the outer wall of the traction head 61, a connecting plate 51 fixedly connected to the outer wall of the limit plate 52, an ultrasonic sensor 5 being installed on one side of the connecting plate 51, and the ultrasonic sensor 5 being electrically connected to the signal processor 4.

[0023] The specific settings and effects of the embodiment will be described below. The position of the movable frame 2 is moved by controlling the movable frame 2 and the traction plate 22, and the ultrasonic sensor 5 is lifted and lowered by controlling the electric cylinder 6, so that the three-axis movement control of the ultrasonic sensor 5 is realized. The ultrasonic sensor 5 receives the ultrasonic signal of the equipment and converts it into an electric signal for analysis. The propagation characteristics and attenuation degree of the ultrasonic wave in the insulating material are related to the insulation state, so the position and intensity of the partial discharge can be determined, and thus the aging degree and defect position of the insulation can be determined, and real-time comprehensive monitoring is realized.

[0024] Embodiment two: as shown in Figure 1 Figure 4 The outer wall of one end of the fixed frame 1 is fixedly connected with the mounting plate 11, the bottom surface of the fixed frame 1 is provided with a sliding groove 12, the inner wall of the sliding groove 12 is rotatably connected with a lead screw 14, one end of the fixed frame 1 is provided with a servo motor 13, the output shaft end of the servo motor 13 is fixedly connected with one end of the sliding groove 12, the top of the movable frame 2 is threadedly sleeved on the outer wall of the sliding groove 12, the outer wall of the movable frame 2 is provided with a sliding groove 23, the inner wall of the sliding groove 23 is rotatably connected with a lead screw 24, one end of the movable frame 2 is provided with a servo motor 21, the output shaft end of the servo motor 21 is connected with one end of the lead screw 24, the top end of the traction plate 22 is threadedly sleeved on the outer wall of the lead screw 24, the outer wall between the two ends of the supporting frame 3 and the supporting plate 25 is fixedly connected with a fixed rod 31, the outer wall of the supporting frame 3 is throughly connected with a guide rod 32, one end of the guide rod 32 is fixedly connected with the outer wall of the connecting plate 51.

[0025] The effect of the whole embodiment is that the fixed frame 1 is installed at the monitoring position by the mounting plate 11, the movable frame 2 is moved by starting the servo motor 13 to drive the lead screw 14, the lead screw 24 is driven to rotate by the servo motor 21, the traction plate 22 is moved on the movable frame 2, the lifting and moving of the ultrasonic sensor 5 is limited and guided by the guide rod 32, and the accuracy of the displacement control of the ultrasonic sensor 5 is improved.

[0026] The working principle and method of using the device are as follows: when used, the fixed frame 1 is installed at the monitoring position by the mounting plate 11, the movable frame 2 and the traction plate 22 are moved by starting the servo motor 13 and the servo motor 21 respectively, the ultrasonic sensor 5 is lifted and lowered by cooperating with the electric cylinder 6, so that the three-axis movement control of the ultrasonic sensor 5 is realized. The ultrasonic sensor 5 receives the ultrasonic signal of the equipment and converts it into an electric signal for analysis. The propagation characteristics and attenuation degree of the ultrasonic wave in the insulating material are related to the insulation state, so the position and intensity of the partial discharge can be determined, and thus the aging degree and defect position of the insulation can be determined, and real-time comprehensive monitoring is realized, and the ultrasonic signal is analyzed and processed by the signal processor 4. ​

[0027] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. An electrical insulation ageing monitoring device comprising a fixing frame (1), characterised in that: The outer wall of the fixed frame (1) is in transmission connection with a movable frame (2), the outer wall of the movable frame (2) is in transmission connection with a traction plate (22), the outer wall of the traction plate (22) is fixedly connected with a supporting plate (25), the outer wall of the supporting plate (25) is fixedly connected with a supporting frame (3), one side of the supporting frame (3) is provided with a signal processor (4), the signal processor (4) is installed on the outer wall of the lead screw two (24), the outer wall of the supporting frame (3) is provided with an electric cylinder (6), one end of the telescopic rod of the electric cylinder (6) is fixedly connected with a traction head (61), the outer wall of the traction head (61) is fixedly connected with a limiting plate (52), the outer wall of the limiting plate (52) is fixedly connected with a connecting plate (51), one side of the connecting plate (51) is provided with an ultrasonic sensor (5), and the ultrasonic sensor (5) and the signal processor (4) are electrically connected.

2. An electrical insulation ageing monitoring device according to claim 1, characterised in that: The outer wall of the fixed frame (1) is fixedly connected with a mounting plate (11), and the bottom surface of the fixed frame (1) is provided with a sliding groove one (12).

3. An electrical insulation ageing monitoring device according to claim 2, characterised in that: One end of the fixed frame (1) is provided with a servo motor one (13), the output shaft end of the servo motor one (13) is fixedly connected with one end of the sliding groove one (12), and the top of the movable frame (2) is threadedly sleeved on the outer wall of the sliding groove one (12).

4. An electrical insulation ageing monitoring device according to claim 3, characterised in that: The outer wall of the movable frame (2) is provided with a sliding groove two (23), and the inner wall of the sliding groove two (23) is in rotation connection with a lead screw two (24).

5. An electrical insulation ageing monitoring device according to claim 4, characterised in that: One end of the movable frame (2) is provided with a servo motor two (21), the output shaft end of the servo motor two (21) is connected with one end of the lead screw two (24), and the top end of the traction plate (22) is threadedly sleeved on the outer wall of the lead screw two (24).

6. An electrical insulation ageing monitoring device according to claim 1, characterised in that: The outer wall between the two ends of the supporting frame (3) and the supporting plate (25) is fixedly connected with a fixed rod (31), and the outer wall of the supporting frame (3) is in through connection with a guide rod (32).

7. An electrical insulation ageing monitoring device according to claim 6, characterised in that: One end of the guide rod (32) is fixedly connected with the outer wall of the connecting plate (51).

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