High-speed fault recording device

Abstract

The utility model discloses a high-speed fault recording device, which comprises a shell, an upper mounting plate and a lower mounting plate, cover plates are arranged at the top, the left side opening and the right side opening of the shell, and a controller with a TCP / IP interface and a signal conditioning circuit board connected with the controller are mounted on the upper mounting plate. A voltage / current sensor, a signal adapter plate and a plurality of power modules are respectively mounted on the lower mounting plate, the power modules and the signal adapter plate are connected with the signal conditioning circuit board, and the voltage / current sensor is connected with the signal adapter plate; the housing is also provided with a network interface socket, an AC220 input interface, an aviation socket and a voltage / current measuring terminal, wherein the network interface socket, the AC220 input interface and the aviation socket are connected with the signal adapter plate, and the voltage / current measuring terminal is connected with the voltage / current sensor. The device is small and portable, can be used as temporary mobile monitoring equipment, and can also be used as a device to be integrated into a control cabinet and a switch cabinet to monitor important operation equipment for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of power electronic detection and relates to a high-speed fault recording device. Background Art

[0002] When the equipment is running for a long time, if a short circuit, overvoltage, overcurrent or impact load occurs, the voltage and current will instantly produce large fluctuations in the line or device, which may cause damage to the equipment. Therefore, a fault recording device is needed.

[0003] At present, fault recording devices generally use oscilloscopes or some portable recording devices to record voltage and current data at high speed. Since the occurrence of field faults is random and accidental, these instruments are not suitable for long-term installation at the equipment operation site to collect data.

[0004] In addition, these fault recording devices require inspection personnel to operate an oscilloscope or portable recording equipment on site, and then manually observe, trigger the fault recording and generate a recording file, which has low efficiency and accuracy. Utility Model Content

[0005] The utility model aims to provide a high-speed fault recording device to solve the problems existing in the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a high-speed fault recording device, including a shell and an upper mounting plate and a lower mounting plate installed in the shell, a cover plate is arranged on the top and left and right side openings of the shell, a controller with a TCP / IP interface and a signal conditioning circuit board connected to the controller are installed on the upper mounting plate, a voltage / current sensor, a signal adapter board and a plurality of power modules are respectively installed on the lower mounting plate, the power module and the signal adapter board are both connected to the signal conditioning circuit board, the voltage / current sensor is connected to the signal adapter board, and the shell is also respectively provided with a network port socket connected to the signal adapter board, an AC220 input interface, an aviation socket and a voltage / current measurement terminal connected to the voltage / current sensor.

[0007] The high-speed fault recording device, wherein the upper mounting plate and the lower mounting plate are made of plastic-sprayed steel plates, can simultaneously meet the functional requirements of device installation, electromagnetic isolation and electrical isolation.

[0008] The high-speed fault recording device has a cover plate provided with voltage / current measurement terminals connected to voltage / current sensors, which is convenient for operation.

[0009] The high-speed fault recording device has a voltage / current sensor that is detachably connected to the lower mounting plate, so that the recording device can replace the voltage / current sensor according to customer needs and be flexibly configured to have different powers.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model can realize automatic signal detection, fault recording, data integration and record file generation, and realize the digitization and intelligence of the fault detection process of power electronic equipment;

[0012] 2. The utility model can monitor the field data 24 hours a day and realize high-speed sampling. Once the equipment fails, the data of the voltage and current changes sharply during the whole process of the failure can be recorded and saved in time according to the set requirements. The transient data can be used to analyze the changing waveform, so as to accurately and quickly locate the fault type and cause, and transmit it to the host computer for processing and analysis, providing a reliable basis for emergency repair and recovery after the failure;

[0013] 3. The utility model supports multiple triggering modes, including manual triggering, voltage condition triggering, current condition triggering, input point triggering, etc.;

[0014] 4. This utility model supports multiple record file formats, including csv, xls, pdf, etc.;

[0015] 5. The utility model is small and portable, and can be used as a temporary mobile monitoring device, or integrated into a control cabinet and switch cabinet as a device to perform long-term monitoring of important operating equipment;

[0016] 6. The utility model can be widely used in new energy, energy storage, ships, railways, switch distribution and other industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the principle of the utility model;

[0019] Figure 3 It is the operation interface of the utility model;

[0020] Figure 4 It is the record file of the present utility model.

[0021] Figure 5 It is the curve display interface of the present utility model.

[0022] The reference numerals of the figures are: 1—controller, 2—signal conditioning circuit board, 3—voltage / current sensor, 4—power module, 5—signal adapter board, 6—upper mounting plate, 7—lower mounting plate, 8—cover plate, 9—housing. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] Reference Figure 1 As shown, the utility model discloses a high-speed fault recording device, which is connected by a power module 4, a voltage / current sensor 3 and a controller 1, a signal conditioning circuit board 2 and a signal adapter board 5; wherein the controller 1 with a TCP / IP interface and the signal conditioning circuit board 2 are mounted on an upper mounting plate 6, and the voltage / current sensor 3, the signal adapter board 5 and a plurality of power modules 4 are mounted on a lower mounting plate 7, and the upper mounting plate 6 and the lower mounting plate 7 are mounted on a housing, which has high safety and is easy to disassemble. The signal conditioning circuit board 2 is connected to the controller 1, the signal conditioning circuit board 2 is connected to the signal adapter board 5, the signal conditioning circuit board 2 is connected to the power module 4, and the signal adapter board 5 is connected to the voltage / current sensor 3.

[0025] Reference Figure 2 As shown, when the device is used, the analog input signal, digital input signal and voltage / current input signal obtained by the signal adapter board 5 and the voltage / current input signal obtained by the voltage / current sensor 3 are sent to the signal conditioning circuit board 2 as original signals. The signal conditioning circuit board 2 processes the conditioned signal and sends it to the controller 1. The controller 1 communicates and interacts with the host computer through the TCP / IP interface to realize automatic signal detection, fault recording, data integration and record file generation, thereby realizing the digitization and intelligence of the fault detection process of power electronic equipment.

[0026] The shell 9 is also provided with a network port socket connected to the signal adapter board 5, an AC220 input interface, an air socket and a voltage / current measurement terminal connected to the voltage / current sensor 3. A cover plate 8 with a cross-section of [-shaped is provided on the top and left and right openings of the shell 9 with a cross-section of [-shaped. The size of the high-speed fault recording device after the cover plate 8 and the shell 9 are assembled is 314mm×272mm×177mm (length×width×height).

[0027] The upper mounting plate 6 and the lower mounting plate 7 are made of plastic-sprayed steel plates, which can simultaneously meet the functional requirements of device installation, electromagnetic isolation and electrical isolation.

[0028] The cover plate 8 is provided with a voltage / current measurement terminal connected to the voltage / current sensor 3, which can read the voltage and current transient change waveforms when a fault occurs, thereby achieving the high reading and recording requirements of sampling voltage and current data once every 0.1 milliseconds, the recording accuracy reaches 0.1 volts / 0.1 amperes, and the continuous high-speed recording time reaches 10 seconds. The voltage / current sensor 3 is detachably connected to the lower mounting plate 7, so that the recording device can replace the voltage / current sensor 3 according to customer needs and flexibly configure it into a device with different powers.

[0029] Compared with the existing fault recording device, the utility model can realize uninterrupted continuous sampling, has the characteristics of high speed and high precision, and supports multiple triggering modes. Figure 3 , Figure 4 and Figure 5 As shown, such as manual triggering, voltage condition triggering, current condition triggering, input point triggering, etc., it is small and portable, with a simple and reasonable structural design. It can be used as a temporary mobile monitoring device, or as a device integrated into a control cabinet and switch cabinet for long-term monitoring of important operating equipment.

[0030] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A high-speed fault recording device, characterized in that: The invention comprises a housing (9) and an upper mounting plate (6) and a lower mounting plate (7) mounted in the housing (9); a cover plate (8) is arranged at the top and left and right openings of the housing (9); a controller (1) with a TCP / IP interface and a signal conditioning circuit board (2) connected to the controller (1) are mounted on the upper mounting plate (6); a voltage / current sensor (3), a signal adapter board (5) and a plurality of power modules (4) are respectively mounted on the lower mounting plate (7); the power modules (4) and the signal adapter board (5) are both connected to the signal conditioning circuit board (2); the voltage / current sensor (3) is connected to the signal adapter board (5); and the housing (9) is also respectively provided with an Internet port socket connected to the signal adapter board (5), an AC220 input interface, an air socket and a voltage / current measurement terminal connected to the voltage / current sensor (3).

2. A high-speed fault recording device according to claim 1, characterized in that: The upper mounting plate (6) and the lower mounting plate (7) are plastic-sprayed steel plates.

3. A high-speed fault recording device according to claim 1, characterized in that: The cover plate (8) is provided with a voltage / current measurement terminal connected to the voltage / current sensor (3).

4. A high-speed fault recording device according to claim 1, 2 or 3, characterized in that: The voltage / current sensor (3) is detachably connected to the lower mounting plate (7).

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