On-line monitoring device for on-load tap-changer of transformer

Abstract

The utility model discloses a transformer on-load tap-changer on-line monitoring device, which comprises a detection box, an operation panel is installed on a shell of the detection box, the operation panel is electrically connected with a microprocessor fixedly arranged in the detection box, the microprocessor is electrically connected with a voltage flow sensor fixedly arranged in the detection box, and the voltage flow sensor is electrically connected with the detection box. The transformer on-load tap-changer on-line monitoring device can collect and store circuit data information of the transformer on-load tap-changer, and can feed back on-line monitoring results to different receiving terminals in a wired mode and a wireless mode at the same time. Therefore, a user can monitor the working condition of the on-load tap-changer of the transformer anytime and anywhere, the efficiency and speed of on-line monitoring of the working condition of the on-load tap-changer of the transformer are greatly improved, and the cost of manually monitoring the working condition of the on-load tap-changer of the transformer is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer equipment field, concretely is transformer on -line monitoring device of load tap changer. BACKGROUND

[0002] Since the discovery of electricity in the 1970s, human society has undergone earth-shattering changes, and since then, technology has changed people's lives. The large-scale power system that appeared in the 20th century is one of the most important achievements in the history of human engineering science, and is a power production and consumption system composed of power generation, power transmission, power transformation, power distribution and power utilization. It has deeply influenced and changed the social structure of human beings. And the transformer is the basic equipment of power transmission and distribution, which is widely used in industry, agriculture, transportation, urban community and other fields. It uses the principle of electromagnetic induction to change the alternating voltage. The main components are primary coil, secondary coil and iron core (magnetic core). The main functions are: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer) and the like.

[0003] During the operation of the transformer, the tap changer in the transformer winding is switched without interrupting the load current, thereby changing the number of turns of the winding and adjusting the voltage ratio of the transformer to achieve the purpose of voltage regulation. This power equipment is called transformer on-load tap changer. It is a voltage regulating device that operates under transformer excitation or load. The voltage is adjusted by changing the tap connection position of the transformer winding.

[0004] Whether the transformer on-load tap changer is running normally is directly related to the regulation function of the transformer. At present, the working condition of the transformer on-load tap changer still needs to be monitored by manual measurement and observation. Not only is the transformer on-load tap changer working condition monitoring inefficient, but also there are problems such as high labor cost, difficulty in recording, storing and transferring transformer on-load tap changer working data, and easy to make mistakes. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing transformer on-load tap changer on-line monitoring device to solve the problems of high difficulty, low efficiency, high labor cost, difficulty in recording, storing and transferring transformer on-load tap changer working data and easy to make mistakes in the existing transformer on-load tap changer working condition monitoring in the background technology.

[0006] The utility model discloses a technical scheme is realized as follows: transformer on -line monitoring device of on -load tap changer, including detection box, the operation panel is installed on the detection box casing, the operation panel is connected with the microprocessor fixedly arranged in the detection box inside electricity, microprocessor and fixedly arranged pressure flow sensor electricity of the detection box inside, pressure flow sensor passes through signal acquisition circuit and is connected with the two transformer on -load tap changer connecting end head electricity of the detection box outside, two transformer on -load tap changer connecting end head is connected in the circuit two ends of transformer on -load tap changer electricity respectively, the detection box inside is installed with wireless communication module, wireless communication module and microprocessor electricity, wireless communication module and wireless signal antenna electricity of setting in the detection box outside, the detection box inside is provided with information storage and microprocessor electricity, microprocessor passes through information feedback cable and external electric control equipment electricity.

[0007] Preferably, the detection box and the wireless signal antenna are connected through a bellows.

[0008] Preferably, a data recovery door is installed on the detection box casing corresponding to the information storage.

[0009] Preferably, the operation panel includes a switch button and a maintenance button connected with the microprocessor respectively.

[0010] Preferably, the switch button and the working indicator are arranged in an indication patch, and the maintenance button and the fault indicator are arranged in another indication patch.

[0011] Preferably, the transformer on -load tap changer connecting end head includes a power connection plug connected with the circuit of the transformer on -load tap changer.

[0012] By adopting the above technical scheme, the utility model has the beneficial effects that:

[0013] The on-line monitoring device of the transformer on-load tap-changer can collect and store circuit data information of the transformer on-load tap-changer, and can simultaneously feed back the on-line monitoring result to different receiving terminals through wired and wireless modes, so that the user can monitor the working condition of the transformer on-load tap-changer at any time and anywhere, the efficiency and speed of on-line monitoring of the working condition of the transformer on-load tap-changer are greatly improved, and the cost of manually monitoring the working condition of the transformer on-load tap-changer is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a front view of the present application;

[0016] Figure 2 It is an internal structure view of the present application;

[0017] Figure 3 It is an enlarged view of the operation panel of the present application;

[0018] Figure 4 It is an enlarged view of the transformer on-load tap-changer connecting end of the present application.

[0019] 1, detection box; 2, operation panel; 3, signal acquisition circuit; 4, transformer on-load tap-changer connecting end; 5, data recovery door; 6, information feedback cable; 7, corrugated pipe; 8, wireless signal antenna; 9, pressure flow sensor; 10, microprocessor; 11, wireless communication module; 12, information storage; 201, switch button; 202, working indicator; 203, maintenance button; 204, fault indicator; 205, indicating patch; 401, power pole; 402, vacuum suction disc; 403, plug-in electrical connector. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] Reference Figures 1-2The transformer on-load tap-changer online monitoring device comprises a detection box 1, an operation panel 2 is installed on the shell of the detection box 1, the operation panel 2 is electrically connected with a microprocessor 10 fixedly arranged in the detection box 1, the microprocessor 10 is electrically connected with a pressure flow sensor 9 fixedly arranged in the detection box 1, the pressure flow sensor 9 is electrically connected with two transformer on-load tap-changer connecting terminals 4 located outside the detection box 1 through a signal acquisition circuit 3, the two transformer on-load tap-changer connecting terminals 4 are respectively electrically connected at two ends of a circuit of a transformer on-load tap-changer, a wireless communication module 11 is installed in the detection box 1, the wireless communication module 11 is electrically connected with the microprocessor 10, the wireless communication module 11 is electrically connected with a wireless signal antenna 8 arranged outside the detection box 1, an information storage 12 electrically connected with the microprocessor 10 is arranged in the detection box 1, and the microprocessor 10 is electrically connected with external electric control equipment through an information feedback cable 6.

[0022] Referring to Figures 1-2 The detection box 1 is connected with the wireless signal antenna 8 through a corrugated pipe 7, so that the wireless signal antenna 8 can be directed to a suitable direction through the corrugated pipe 7, so that the best wireless signal feedback effect can be obtained.

[0023] Referring to Figure 1 A data recovery door 5 is installed on the shell of the detection box 1 at a position corresponding to the information storage 12, one side of the data recovery door 5 is rotationally connected with the detection box 1 through a sealing hinge, and a safety lock is installed on the other side of the data recovery door 5, so that when necessary, the data recovery door 5 can be opened, and an information storage card installed in the information storage 12 can be recovered, so that the rapid transfer of the transformer on-load tap-changer online monitoring data can be realized.

[0024] Referring to Figure 3 The operation panel 2 comprises a switch button 201 and a maintenance button 203 which are electrically connected with the microprocessor 10 respectively, a working indicator lamp 202 is arranged on the side of the switch button 201 and is electrically connected with the microprocessor 10, and a fault indicator lamp 204 is arranged on the side of the maintenance button 203 and is electrically connected with the microprocessor 10, so that the working indicator lamp 202 and the fault indicator lamp 204 can display the working state of the device in real time, so that the staff can timely maintain and repair.

[0025] Referring to Figure 3 The switch button 201 and the working indicator lamp 202 are arranged in an indicator patch 205, and the maintenance button 203 and the fault indicator lamp 204 are arranged in another indicator patch 205, so that the staff can accurately identify the corresponding relationship between the switch button 201 and the working indicator lamp 202 and between the maintenance button 203 and the fault indicator lamp 204, and errors can be avoided.

[0026] Referring to Figure 4The transformer on-load tap changer connecting end 4 comprises an electric pole 401 electrically connected with the circuit of the transformer on-load tap changer, and a vacuum suction disc 402 is installed on the electric pole 401, and a plug-in electric connector 403 electrically connected with the signal acquisition circuit 3 is arranged at the end of the vacuum suction disc 402, so that the transformer on-load tap changer connecting end 4 is fixed by the vacuum suction disc 402, thereby maintaining the stability of the device during operation.

[0027] Working principle: when the device is used to monitor the working condition of the transformer on-load tap changer on line, the two transformer on-load tap changer connecting ends 4 are respectively installed at the two ends of the circuit of the transformer on-load tap changer, so as to monitor the voltage and current data loaded at the two ends of the circuit of the transformer on-load tap changer in real time through the current sensor 9, and the data is fed back to the microprocessor 10 for processing, and the processed data is stored in the information storage 12, and the microprocessor 10 feeds back the detection result to the external electric control equipment through the information feedback cable 6 to display, so as to realize the function of monitoring the working condition of the transformer on-load tap changer on line in real time, and the microprocessor 10 can also convert the detection result into a wireless signal through the wireless communication module 11, and transmit the wireless signal through the wireless signal antenna 8, and feed back to the remote control end of the user, so that the user can monitor the working condition of the transformer on-load tap changer at any time and anywhere, greatly improving the efficiency and speed of on-line monitoring of the working condition of the transformer on-load tap changer.

[0028] In the description of the present application, the terms "connection", "installation", "fixation", "arrangement" and the like are understood in a broad sense, for example, "connection" can be fixed connection or indirect connection through intermediate components without affecting the relationship between components and technical effects, or it can be integrated connection or partial connection, as the case may be for a person skilled in the art, the specific meaning of the above terms in the present application or utility model can be understood according to the specific circumstances, in the present application, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse" and "longitudinal" are based on the directions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Finally, it should be noted that when describing the positions of various components and their cooperation, the present application usually takes one pair of components as an example, however, those skilled in the art should understand that such positions and cooperation are also applicable to other components or other pairs of components.

[0029] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An on-line monitoring device for transformer on-load tap changer, characterized in that: The application relates to a detection box (1) which is provided with an operation panel (2) on the shell of the detection box (1), the operation panel (2) is electrically connected with a microprocessor (10) fixedly arranged in the detection box (1), the microprocessor (10) is electrically connected with a pressure flow sensor (9) fixedly arranged in the detection box (1), the pressure flow sensor (9) is electrically connected with two transformer on-load tap changer connection terminals (4) located outside the detection box (1) through a signal acquisition circuit (3), the two transformer on-load tap changer connection terminals (4) are respectively electrically connected at two ends of a circuit of a transformer on-load tap changer, a wireless communication module (11) is arranged in the detection box (1), the wireless communication module (11) is electrically connected with the microprocessor (10), the wireless communication module (11) is electrically connected with a wireless signal antenna (8) arranged outside the detection box (1), an information storage device (12) electrically connected with the microprocessor (10) is arranged in the detection box (1), and the microprocessor (10) is electrically connected with external electric control equipment through an information feedback cable (6).

2. The on-line monitoring device for transformer on-load tap changer according to claim 1, characterized in that: The detection box (1) is connected with the wireless signal antenna (8) through a bellows (7).

3. The on-line monitoring device for transformer on-load tap changer according to claim 1, characterized in that: A data recovery door (5) is arranged on the shell of the detection box (1) and corresponds to the information storage device (12), one side of the data recovery door (5) is rotationally connected with the detection box (1) through a sealing hinge, and the other side of the data recovery door (5) is provided with a safety lock.

4. The on-line monitoring device for transformer on-load tap changer according to claim 1, characterized in that: The operation panel (2) comprises switch buttons (201) and maintenance buttons (203) electrically connected with the microprocessor (10), the switch buttons (201) are provided with working indicator lamps (202) electrically connected with the microprocessor (10), and the maintenance buttons (203) are provided with fault indicator lamps (204) electrically connected with the microprocessor (10).

5. The on-line monitoring device for transformer on-load tap changer according to claim 4, characterized in that: The switch buttons (201) and the working indicator lamps (202) are arranged in an indicator patch (205), and the maintenance buttons (203) and the fault indicator lamps (204) are arranged in another indicator patch (205).

6. The on-line monitoring device for transformer on-load tap changer according to claim 1, characterized in that: The transformer on-load tap changer connection terminal (4) comprises an electricity connection plug (401) electrically connected with a circuit of a transformer on-load tap changer, the electricity connection plug (401) is provided with a vacuum adsorption disc (402), and the vacuum adsorption disc (402) is provided with a plug-in electric connector (403) electrically connected with the signal acquisition circuit (3).

Images