Generator testing equipment

Abstract

The present disclosure relates to a generator testing device, the device is electrically connected to the generator and a mobile load, and is used to perform a load test on the generator when the generator is generating electricity, wherein the device includes a device body, the device body includes a cabinet frame, a cabinet top plate, a cabinet side plate, and a cabinet door plate, a connector socket is provided in the device body, and the mobile load is electrically connected to the device through the connector socket, wherein the device also includes: at least one vibration sensor, at least one temperature sensor, at least one sound sensor, an electric power parameter acquisition component, a first positioning component, a second positioning component, a third positioning component, and an alarm component. Through the above equipment, the embodiments of the present disclosure can monitor the electric power parameters, temperature, vibration, and sound conditions of the generator under load to ensure that the generator can work normally, thereby playing the role of normal power supply and maintaining the safety of the equipment.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic technology, and in particular to a generator testing device. Background Art

[0002] At present, most low-voltage power supply systems use a dual power supply system, where the mains power supply is the mains power supply and the backup power supply is the power generation mode. When the mains power supply fails, the dual power supply control system automatically starts the generator and switches the switch to the generator power supply side to ensure the continuity of load power supply. However, in order to ensure that the generator starts correctly when needed and the power generated is normal, it is necessary to regularly maintain, inspect, and control the generator. The relevant technology cannot quickly and correctly reflect the status of the generator for generator monitoring, so it cannot ensure that the generator can fully play the role of normal power supply after the mains power supply fails. It may also cause accidents due to missed detection or misdetection of generator failures, increase property losses, and even threaten personal safety. Summary of the invention

[0003] In view of this, the present disclosure provides a generator testing device, the device is electrically connected to the generator and the mobile load, and is used to perform a load test on the generator when the generator generates electricity, wherein the device includes a device body, the device body includes a cabinet frame, a cabinet top plate, a cabinet side plate, and a cabinet door plate, a connector socket is provided in the device body, and the mobile load is electrically connected to the device through the connector socket, wherein the device also includes:

[0004] at least one vibration sensor, disposed on the generator, for acquiring a vibration signal of the generator;

[0005] at least one temperature sensor, disposed on the generator, for acquiring a temperature signal of the generator;

[0006] At least one sound sensor, disposed at a preset distance from the generator, for collecting sound signals of the generator;

[0007] A power parameter acquisition component, disposed in the device body, for acquiring a plurality of power parameters of the generator;

[0008] A first positioning component, disposed in the device body, electrically connected to the vibration sensor, and used to determine the abnormal vibration position of the generator according to the vibration signal;

[0009] A second positioning component, disposed in the device body and electrically connected to the temperature sensor, for determining a temperature abnormality position of the generator according to the temperature signal;

[0010] A third positioning component, disposed in the device body and electrically connected to the sound sensor, for determining a position of abnormal sound of the generator using the sound signal;

[0011] An alarm component is arranged on the cabinet door panel and is electrically connected to the vibration sensor, the temperature sensor, the sound sensor and the power parameter acquisition component, and is used to: compare the vibration signal, temperature signal, sound signal, power parameter with preset data, determine abnormal data, and compare the abnormal data with corresponding threshold parameters, and send out an audible and visual alarm signal when the abnormal data does not match the threshold parameters.

[0012] In a possible implementation, the device further includes a display component, which is disposed on the cabinet door panel, and the display component is electrically connected to the vibration sensor, the temperature sensor, the sound sensor, the power parameter acquisition component, the first positioning component, the second positioning component, and the third positioning component, and is used to display the vibration signal, the temperature signal, the sound signal, the power parameter, the abnormal vibration position, the abnormal temperature position, and the abnormal sound position;

[0013] A power indicator light is arranged on the cabinet door panel and is used to indicate the power supply status.

[0014] In a possible implementation manner, the display component is further configured to display troubleshooting instruction information based on the abnormality type.

[0015] In a possible implementation manner, the device further includes:

[0016] a communication component, electrically connected to the vibration sensor, the temperature sensor, the sound sensor, the power parameter acquisition component, the first positioning component, the second positioning component, and the third positioning component, and used for transmitting the vibration signal, the temperature signal, the sound signal, the power parameter, the abnormal vibration position, the abnormal temperature position, and the abnormal sound position;

[0017] The printing component is electrically connected to the communication component and is used for receiving data through the communication component and printing.

[0018] In a possible implementation, the mobile load includes a load adjustment component, and the load adjustment component is used to adjust the load type and load capacity of the mobile load, wherein the load type includes an inductive load, a capacitive load, and a combination of the two.

[0019] In a possible implementation, the vibration sensor is arranged at one or more locations of the transmission shaft housing, base, internal combustion engine cylinder housing, and motor housing of the generator, and the temperature sensor is arranged at one or more locations of the motor housing, electric box, cooling fan, primary circuit copper busbar joint, or inside the motor of the generator, and the preset distance is 2 to 3 meters.

[0020] In a possible implementation, the device includes a first switch and a second switch, wherein the first switch and the second switch are configured to be mechanically interlocked.

[0021] During the test phase, the first switch is closed, the second switch is closed, and the power generated by the generator is transmitted to the mobile load;

[0022] In the normal trial stage, the first switch is opened, the second switch is closed, and the power generated by the generator is transmitted to the load.

[0023] In a possible implementation, the device further includes an emergency switching switch, a conversion switch, a leakage detector, a current transformer, and a copper busbar arranged in the device body, wherein the emergency switching switch is used to switch the power supply mode, the conversion switch is used to switch the power transmission line, the leakage detector detects whether there is leakage, the current transformer is used to convert the current size, and the copper busbar is used to realize current transmission, wherein the power supply mode includes a mains power supply mode and a generator power supply mode.

[0024] In a possible implementation, the vibration signal includes one or more of acceleration, amplitude, and vibration frequency, and the power parameter includes one or more of voltage, current, frequency, phase, harmonics, and power factor.

[0025] In a possible implementation, the alarm component is also used to compare the vibration signal, temperature signal, sound signal, and power parameters with preset data to determine the number of fault points, and to issue an audible and visual alarm signal when the number of fault points is greater than a preset value.

[0026] Through the above equipment, the embodiment of the present disclosure can monitor the power parameters, temperature, vibration, and sound conditions of the generator under load, so as to locate the abnormal position of the generator, and can alarm when the power parameters, vibration signals, temperature signals, and sound signals are abnormal compared with the preset data. The generator can be loaded and tested regularly or at any time as needed to ensure that the generator can work normally, thereby playing the role of normal power supply and maintaining equipment safety.

[0027] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0029] Figure 1 A schematic diagram of a generator testing device according to an embodiment of the present disclosure is shown.

[0030] Figure 2 A schematic diagram of a flow chart of temperature anomaly determination according to an embodiment of the present disclosure is shown.

[0031] Figure 3a shows an overall schematic diagram of a generator testing device according to an embodiment of the present disclosure, Figure 3b FIG. 1 shows an exploded schematic diagram of a generator testing device according to an embodiment of the present disclosure. Figure 3c A schematic diagram of a vibration sensor according to an embodiment of the present disclosure is shown. Figure 3d A schematic diagram of a temperature sensor according to an embodiment of the present disclosure is shown.

[0032] Figure 4 A schematic diagram of an application scenario of a generator testing device according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0033] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0034] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0035] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0036] See also Figure 1 , Figure 1 A schematic diagram of a generator testing device according to an embodiment of the present disclosure is shown.

[0037] like Figure 1As shown, the device 10 is electrically connected to the generator 20 and the mobile load 30, and is used to perform a load test on the generator 20 when the generator 20 generates electricity. The device 10 includes a device body, which includes a cabinet frame 101, a cabinet top plate 102, a cabinet side plate 103, and a cabinet door plate 104. A connector socket ( Figure 1 (not shown), the mobile load 30 is electrically connected to the device 10 through the connector socket, wherein the device 10 further includes:

[0038] At least one vibration sensor 201, disposed on the generator 20, for acquiring a vibration signal of the generator 20;

[0039] at least one temperature sensor 202, disposed on the generator 20, for acquiring a temperature signal of the generator 20;

[0040] At least one sound sensor 203, disposed at a preset distance from the generator 20, for collecting sound signals of the generator 20;

[0041] A power parameter acquisition component 100, disposed in the device body, for acquiring a plurality of power parameters of the generator 20;

[0042] A first positioning component 1001 is disposed in the device body and electrically connected to the vibration sensor 201, and is used to determine the abnormal vibration position of the generator 20 according to the vibration signal;

[0043] A second positioning component 106 is disposed in the device body and is electrically connected to the temperature sensor 202, and is used to determine the abnormal temperature position of the generator 20 according to the temperature signal;

[0044] A third positioning component 107, which is disposed in the device body and is electrically connected to the sound sensor 203, and is used to determine the abnormal sound position of the generator 20 using the sound signal;

[0045] The alarm component 105 is arranged on the cabinet door panel 104, and is electrically connected to the vibration sensor 201, the temperature sensor 202, the sound sensor 203 and the power parameter acquisition component, and is used to: compare the vibration signal, temperature signal, sound signal, and power parameter after processing with preset data, determine abnormal data, and compare the abnormal data with corresponding threshold parameters, and send out an audible and visual alarm signal when the abnormal data does not match the threshold parameters.

[0046] Through the above equipment, the embodiment of the present disclosure can monitor the power parameters, temperature, vibration, and sound conditions of the generator under load, so as to locate the abnormal position of the generator, and can alarm when the power parameters, vibration signals, temperature signals, and sound signals are abnormal compared with the preset data. The generator can be loaded and tested regularly or at any time as needed to ensure that the generator can work normally, thereby playing the role of normal power supply and maintaining equipment safety.

[0047] In a possible implementation, the mobile load 30 may include a load adjustment component (not shown), which is used to adjust the load type and load capacity of the mobile load, wherein the load type includes an inductive load, a capacitive load, and a combination of the two.

[0048] In one example, the mobile load 30 may be a mobile load vehicle, which may be capable of automatic movement. A destination of the mobile load vehicle may be set according to relevant techniques, and the mobile load vehicle may automatically move to the destination according to the setting.

[0049] In a possible implementation, the generator 20 may include multiple types, for example, the generator 20 may be a DC generator and an AC generator. If the generator 20 is an AC generator, it may be a synchronous generator and an asynchronous generator, or a single-phase generator and a three-phase generator. If classified by the generation method, the generator 20 may include a steam turbine generator, a hydroelectric generator, a diesel generator, a gasoline generator, etc. Classified by energy, the generator 20 may include a thermal generator, a hydroelectric generator, etc. The disclosed embodiment does not limit the type of generator, and those skilled in the art may select as needed.

[0050] In a possible implementation, the alarm component 105 may include a processing unit and an acoustic and optical alarm unit. The processing unit may be implemented based on a digital circuit to implement functions such as comparison, counting, and processing of parameters, signals, and preset data. In one example, the acoustic and optical alarm unit may include an acoustic and optical alarm. Similarly, the embodiments of the present disclosure do not limit the specific implementation of the acoustic and optical alarm unit, and those skilled in the art may implement it as needed.

[0051] In one example, the mismatch of "issuing an audible and visual alarm signal when the abnormal data does not match the threshold parameter" may include: the abnormal data or the intermediate parameter obtained by processing the abnormal data is greater than the threshold parameter, or is less than the threshold parameter, or is not within the range of the threshold parameter, that is, the threshold parameter can be a specific value or a range.

[0052] In one example, the processing unit may include a comparison circuit to compare the vibration signal, temperature signal, sound signal, power parameter with preset data, determine abnormal data, and compare the abnormal data with corresponding threshold parameters.

[0053] It should be noted that different signals or parameters are compared with corresponding preset data and threshold parameters. For example, a temperature curve for a period of time can be determined by a temperature signal, and the temperature curve can be compared with a normal temperature curve (preset data) in a database to determine abnormal data (for example, a section of a temperature curve), and the abnormal data can be compared with a corresponding threshold parameter. For example, the processing circuit can further include an abnormal data processing circuit, and the abnormal data circuit can process the abnormal data to obtain an intermediate parameter, and compare the intermediate parameter with the threshold parameter to determine the abnormal data. For example, for temperature data, the abnormal data processing circuit can process the abnormal data to determine an abnormal temperature rise coefficient, and the comparison circuit can compare the abnormal temperature rise coefficient with the normal temperature rise coefficient in the database, and send an audible and visual alarm signal when the abnormal data does not match the threshold parameter.

[0054] Among them, the processing circuit can be implemented by a dedicated circuit, or by a general integrated circuit and related logic instructions (such as CPU, MCU, etc.), and this is not limited in the embodiments of the present disclosure.

[0055] In a possible implementation, the alarm component 105 can also be used to compare the vibration signal, temperature signal, sound signal, power parameter with preset data, determine the number of fault points, and issue an audible and visual alarm signal when the number of fault points is greater than a preset value.

[0056] In one example, the processing unit may include a comparison circuit and a counting circuit, and the vibration signal, temperature signal, sound signal, and power parameter are compared with preset data by comparing short circuits to obtain a comparison result. The counting circuit may be used to count the signals or parameters that are not within the preset data range, thereby determining the number of fault points, and the comparison circuit may be used to compare the determined number of fault points with a preset value. When the number of fault points is greater than or equal to the preset value, the sound and light alarm unit emits sound and / or light to alarm. Of course, the processing unit may be implemented by a dedicated circuit or a general circuit, and the embodiments of the present disclosure are not limited to this.

[0057] Although the above description uses the alarm component to implement abnormal data identification and alarm functions as an example, it should be understood that the embodiments of the present disclosure are not limited to this. In other embodiments, the alarm component can be further split, for example, it can be split into a processing component (such as a corresponding processing unit) and an alarm component (such as a corresponding sound and light alarm unit), and the processing component implements abnormal data selection for each signal or parameter, and the alarm component implements an alarm after the abnormal data is determined.

[0058] In a possible implementation, the power parameter may include one or more of voltage, current, frequency, phase, harmonics, and power factor. The power parameter acquisition component 100 may be implemented in a circuit manner. For example, the power parameter acquisition component may include a current detection circuit, a voltage detection circuit, etc., to determine the current and voltage. Of course, the power parameter acquisition component 100 may also include a phase determination circuit, a power factor determination circuit, a harmonic detection circuit, etc., which is not limited in the embodiments of the present disclosure.

[0059] In a possible implementation, the vibration signal may include one or more of acceleration, amplitude, and vibration frequency, and the temperature signal may include the temperature of the generator.

[0060] The embodiments of the present disclosure do not limit the specific number and type of vibration sensors, temperature sensors, and sound sensors, and those skilled in the art may select them as needed.

[0061] In a possible implementation, the first positioning component 1001, the second positioning component 106, and the third positioning component 107 can all be implemented by circuit means. In one example, each positioning component can include a comparison unit and a positioning unit (not shown). The comparison unit can compare the collected data with the pre-stored normal data. When the collected data is no longer within the range of the normal data, it is determined that the signal is abnormal. In this case, the positioning unit can locate the signal source that generates the signal. Of course, the embodiment of the present disclosure does not limit the specific implementation of the first positioning component 1001, the second positioning component 106, and the third positioning component 107. Those skilled in the art can implement them using dedicated circuits or using general circuits combined with relevant logic instructions.

[0062] In a possible implementation, the first positioning component 1001, the second positioning component 106, and the third positioning component 107 can also be electrically connected to the alarm component (or electrically connected to the processing circuit or processing component obtained after splitting the alarm component), and the abnormal data can be determined through the alarm component, and the abnormal position of the abnormal data can be located.

[0063] In one example, when the alarm component determines that the temperature data is abnormal, the second positioning component 106 can locate the abnormal temperature data. For example, the component of the generator with abnormal temperature can be determined through an associated temperature sensor.

[0064] In a possible implementation, the vibration sensor 201 may be disposed at one or more locations of the transmission shaft housing, the base, the internal combustion engine cylinder housing, the motor housing, etc. of the generator.

[0065] In one example, the first positioning component 1001 (or the alarm component) can obtain vibration signals from various vibration sensors and determine vibration data such as acceleration, amplitude, and vibration frequency included in each vibration signal. The comparison unit of the first positioning component 1001 can compare the determined vibration data with preset vibration data obtained from a test under normal engine conditions to determine the presence of abnormal vibration data. In this case, the positioning unit of the first positioning component 1001 can determine the abnormal vibration location based on the location of the vibration sensor that is the source of the abnormal vibration data.

[0066] In a possible implementation, the temperature sensor 202 may be disposed at one or more locations of the generator such as a motor housing, an electric box, a cooling fan, a primary circuit copper busbar joint, or inside the motor.

[0067] In one example, the second positioning component 106 can obtain temperature signals from each temperature sensor and determine the temperature data included in each temperature signal. The comparison unit of the second positioning component 106 can compare the determined temperature data with the preset temperature data obtained from the test under normal conditions of the engine to determine the presence of abnormal temperature data. In this case, the positioning unit of the second positioning component 106 can determine the location of the temperature anomaly based on the location of the source temperature sensor of the abnormal temperature data.

[0068] See also Figure 2 , Figure 2 A schematic diagram of a flow chart of temperature anomaly determination according to an embodiment of the present disclosure is shown.

[0069] In one example, if Figure 2As shown, the temperature sensor of the embodiment of the present disclosure can sample the temperature of the generator in real time and obtain temperature data (for example, a temperature data curve graph can be made). On the one hand, the sampled temperature data can be stored in a storage device. On the other hand, the alarm component (or each positioning component, or processing circuit, or processing component) can compare the sampled temperature data with the data in the normal temperature database to determine whether the temperature data is normal. When the temperature data is within the range of normal temperature data, it is determined that the temperature data is normal and the normal data is not processed; when the temperature data is outside the range of normal data, it is determined that the temperature data is abnormal and the abnormal temperature data is retained. Further, the abnormal temperature data can be used to calculate the abnormal temperature rise coefficient k=|(T1-T2) / △t, where k indicates the abnormal temperature rise coefficient, T1 represents the first temperature, T2 represents the second temperature, and △t represents the time difference between T1 and T2. Furthermore, the normal temperature rise coefficient in the normal temperature rise coefficient database, the heating components in the temperature rise heating component library, the cloud fault database, the local fault database, and the abnormal temperature rise signal channel can be obtained to screen out abnormal parts in the generator, and the number of abnormal parts (i.e., the number of abnormalities) can be recorded, and the number can be compared with the preset value; or the temperature rise coefficient and temperature of the abnormal part can be compared with the temperature rise coefficient alarm setting value and the temperature alarm value to determine whether to alarm. When the abnormality is determined, the alarm component (or alarm component, sound and light alarm unit) can alarm, and the abnormal solutions stored in the local and cloud storage can be called up, and the indication information can be displayed on the display component to indicate the solution.

[0070] Of course, the above description is exemplary and should not be regarded as limiting the present disclosure.

[0071] In a possible implementation manner, the preset distance is 2 to 3 meters, and one or more sound sensors may be arranged at a position 2 to 3 meters away from the generator.

[0072] In one example, the third positioning component 107 can obtain sound signals from each sound sensor and determine the sound data included in each sound signal. The comparison unit of the third positioning component 107 can compare the determined sound data with the preset sound data obtained from the test under normal engine conditions to determine the presence of abnormal sound data. In this case, the positioning unit of the third positioning component 107 can determine the abnormal sound location based on the abnormal sound data.

[0073] It should be noted that the positioning unit of the third positioning component 107 can use relevant technologies to locate the abnormal sound position, which is not limited in the embodiment of the present disclosure.

[0074] For example, the location of abnormal sound can be located through wave velocity formation method and time delay estimation method.

[0075] In one possible implementation, the data of the generator under normal conditions may include preset data under various load conditions such as no load, low load, high load, and full load. These preset data can be entered into the database of the storage device in advance. When the positioning component needs to be positioned, the preset data can be obtained through relevant access technology. The present disclosure does not limit this.

[0076] In a possible implementation, the alarm component and each positioning component can determine the type of fault or abnormality. For example, the alarm component or the third positioning component can determine the following abnormalities through sound signals: fan belt wear failure, transmission gear tooth failure, bearing bending failure, fan blade breakage failure, fastener mechanical deformation and loosening failure, etc.

[0077] In one example, when the generator starter motor transmission gear fails to rattle, the noise spectrum of the transmission gear rattling is different from the normal frequency. The third positioning component or the alarm component can lock the area where the abnormal noise is emitted based on the sound signal of the sound sensor (such as a microphone array), and then the approximate fault point can be screened out based on the sampled battery voltage, battery temperature, starter motor relay status, starter motor separation auxiliary contact status and other information.

[0078] See also Figure 3a , Figure 3b , Figure 3c , Figure 3d , Figure 3a shows an overall schematic diagram of a generator testing device according to an embodiment of the present disclosure, Figure 3b FIG. 1 shows an exploded schematic diagram of a generator testing device according to an embodiment of the present disclosure. Figure 3c A schematic diagram of a vibration sensor according to an embodiment of the present disclosure is shown. Figure 3d A schematic diagram of a temperature sensor according to an embodiment of the present disclosure is shown.

[0079] like Figure 3b As shown, in a possible implementation, the device 10 may further include a display component 1061, which is disposed on the cabinet door panel 104, and the display component 1061 is electrically connected to the vibration sensor 201, the temperature sensor 202, the sound sensor 203, the power parameter acquisition component 100, the first positioning component 1001, the second positioning component 106, and the third positioning component 107, and is used to display vibration signals, temperature signals, sound signals, power parameters, the abnormal vibration position, the abnormal temperature position, and the abnormal sound position;

[0080] The power indicator light 1071 is disposed on the cabinet door panel and is used to indicate the power supply status.

[0081] In one example, the display component 1061 may include a touch display screen, for example, the type may be LCD, OLED, LED, MiniLED, etc., which is not limited in the embodiments of the present disclosure.

[0082] Through the touch display screen, the user can operate the controls displayed by the display component 1061 to issue instructions.

[0083] In a possible implementation, the display component 1061 may also be used to display troubleshooting instruction information based on the abnormality type.

[0084] When the alarm component 105 determines that there is abnormal sound, abnormal vibration, abnormal temperature or other abnormalities, it can use relevant technologies to notify the display component 1061 to display the indication information for troubleshooting. The indication information for troubleshooting can be recorded in the storage device of the device in advance, and the display component 1061 can obtain the indication information in the storage device according to relevant data access technologies for display.

[0085] In one example, after the exception type is determined, the data in the storage device can be checked to see if the exception is in the directory. If so, the solution (instruction information) is retrieved. If not, the exception information can be uploaded to the cloud server for search.

[0086] In one example, if the abnormality is determined to be a starter motor transmission gear hitting fault, the cause and solution (indication information) may include:

[0087] The battery power is insufficient, check the battery circuit or replace the battery;

[0088] The starter motor relay does not work, check the starter relay status;

[0089] The starter motor transmission gear cannot mesh with the flywheel ring gear. Check the gear meshing status.

[0090] The starter motor is engaged but the diesel engine cannot rotate or rotates weakly. Check the diesel engine controller and oil circuit.

[0091] If the diesel engine cannot be separated from the starting motor after it is running, check the separator.

[0092] In one example, if the abnormality is determined to be high water temperature, possible causes and indications may include:

[0093] The water tank is leaking or the water level is insufficient. Check the water level and sealing status of the water tank.

[0094] Check whether the water temperature sensor is damaged;

[0095] Check the dirt in the water channel of the water tank or the oil on the radiator;

[0096] Check fan belt for wear;

[0097] Check the ventilation of the equipment room;

[0098] Check whether the engine is overloaded, etc.

[0099] In a possible implementation, Figure 3b As shown, the device may also include an emergency switching switch 1012, a conversion switch 109, a leakage detector 1010, a current transformer 1011, and a copper bus 1013 arranged in the device body, wherein the emergency switching switch 1012 is used to switch the power supply mode, the conversion switch 109 is used to switch the power transmission line, the leakage detector 1010 detects whether there is leakage, the current transformer 1011 is used to convert the current size, and the copper bus 1013 is used to realize current transmission, wherein the power supply mode includes a mains power supply mode and a generator power supply mode.

[0100] In one example, the emergency switch 1012 may include an emergency switch button, which is set on the device body. When the normal power supply (mains power) fails and a generator is required for power supply, or in other emergency situations, the user can switch the power supply mode by pressing the emergency switch button, for example, from the mains power supply mode to the generator power supply mode.

[0101] In one example, if Figure 3b As shown, the device includes a plurality of connector sockets 108, which are electrically connected to the mobile loads via cables.

[0102] In a possible implementation, the device may further include:

[0103] A communication component, electrically connected to the vibration sensor 201, the temperature sensor 202, the sound sensor 203, the power parameter acquisition component, the first positioning component, the second positioning component, and the third positioning component, for transmitting the vibration signal, the temperature signal, the sound signal, the power parameter, the abnormal vibration position, the abnormal temperature position, and the abnormal sound position;

[0104] The printing component is electrically connected to the communication component and is used for receiving data through the communication component and printing.

[0105] In one example, the communication component includes a Bluetooth module, a WiFi module, an RS485 communication module, etc. The communication component can be implemented through various related communication methods. The implementation method of the communication component is not limited in the embodiment of the present disclosure.

[0106] In one example, the printing component may include a Bluetooth printer or other types of printers, which may acquire the test data through the communication component and print the test data.

[0107] In one example, if Figure 3b As shown, the first positioning component, the second positioning component, the third positioning component, and the communication component can be integrated in the control component 1014. The first positioning component, the second positioning component, the third positioning component, and the communication component can be separate components or integrated modules, which is not limited in the embodiments of the present disclosure.

[0108] See also Figure 4 , Figure 4 A schematic diagram of an application scenario of a generator testing device according to an embodiment of the present disclosure is shown.

[0109] In a possible implementation, Figure 4 As shown, the device (generator integrated measurement and control cabinet) may further include a first switch S1 and a second switch S2, wherein the first switch S1 and the second switch S2 are configured to be mechanically interlocked.

[0110] In the test phase, the first switch S1 is closed, the second switch S2 is turned off, and the power generated by the generator G is transmitted to the mobile load vehicle;

[0111] In the normal trial stage, the first switch S1 is opened, the second switch S2 is closed, and the power generated by the generator G is transmitted to the load.

[0112] In one example, during the test phase, if the load urgently needs emergency power supply, the user can immediately press the emergency switch button (emergency switch), and the emergency switch button transmits the status signal to the alarm component (to alarm) and the conversion switch, and controls the conversion switch to switch the power transmission line. In this case, the first switch S1 is disconnected and the second switch S2 is closed, and the power generated by the generator is transmitted to the load, and the power supply mode of the load is converted from the mains power supply mode (normal power supply) to the generator power supply mode (backup power supply). The generator test equipment of the embodiment of the present disclosure can be applied to a dual power supply system, such as Figure 4 As shown, the generator can be used as a backup power supply. When the normal power supply (such as the mains) fails, the backup power supply can be used to supply power to multiple loads (exemplarily, loads 1 to 5).

[0113] In one example, when the common power supply operates normally, the second switch S2 installed in the device is closed and turned on, and S1 is open.

[0114] When the common power supply is normal, switch QF1 is closed, switch QF2 is opened, and the system is powered by the common power supply.

[0115] When the normal power supply is abnormal, the generator starts automatically, switch QF1 opens, and switch QF2 closes with a delay. At this time, the generator supplies power to the outgoing line to ensure the continuity of power supply to the load.

[0116] When the normal power supply returns to normal, switch QF2 opens, switch QF1 closes with a delay, and stops the generator, and the system returns to the normal power supply.

[0117] In one example, when inspecting and testing the generator, the switch QF2 is in the open state, the first switch S1 is closed (S1 and S2 are mechanically interlocked), and the second switch S2 is in the open position. Then the generator is started, and the operating parameters of the generator are detected, including voltage, frequency, phase, harmonics, generator temperature, vibration, abnormal noise source and other data, and a detection report is generated.

[0118] If you need to test the comprehensive performance of the generator under load, connect the mobile load vehicle to the test equipment (the load vehicle and the measurement and control cabinet have aviation plugs and are connected by the equipped quick-connect cables) to perform an actual load test on the generator, and the test data will be more comprehensive.

[0119] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A generator testing device, characterized in that: The device is electrically connected to the generator and the mobile load, and is used to perform a load test on the generator when the generator is generating electricity, wherein the device includes a device body, the device body includes a cabinet frame, a cabinet top plate, a cabinet side plate, and a cabinet door plate, and a connector socket is provided in the device body, and the mobile load is electrically connected to the device through the connector socket, wherein the device also includes: at least one vibration sensor, disposed on the generator, for acquiring a vibration signal of the generator; at least one temperature sensor, disposed on the generator, for acquiring a temperature signal of the generator; At least one sound sensor, disposed at a preset distance from the generator, for collecting sound signals of the generator; A power parameter acquisition component, disposed in the device body, for acquiring a plurality of power parameters of the generator; A first positioning component, disposed in the device body, electrically connected to the vibration sensor, and used to determine the abnormal vibration position of the generator according to the vibration signal; A second positioning component, disposed in the device body and electrically connected to the temperature sensor, for determining a temperature abnormality position of the generator according to the temperature signal; A third positioning component, disposed in the device body and electrically connected to the sound sensor, for determining a position of abnormal sound of the generator using the sound signal; An alarm component is arranged on the cabinet door panel, electrically connected to the vibration sensor, the temperature sensor, the sound sensor and the power parameter acquisition component, and is used to compare the vibration signal, the temperature signal, the sound signal, the power parameter with the preset data, determine the abnormal data, and compare the abnormal data with the corresponding threshold parameters, and send out an audible and visual alarm signal when the abnormal data does not match the threshold parameters. The device comprises a first switch and a second switch, wherein the first switch and the second switch are configured to be mechanically interlocked. During the test phase, the first switch is closed, the second switch is closed, and the power generated by the generator is transmitted to the mobile load; In the normal use stage, the first switch is opened and the second switch is closed, and the power generated by the generator is transmitted to the load. Wherein, the generator is a DC generator or an AC generator.

2. The device according to claim 1, characterized in that The device also includes: A display component is arranged on the cabinet door panel, and the display component is electrically connected to the vibration sensor, the temperature sensor, the sound sensor, the power parameter acquisition component, the first positioning component, the second positioning component, and the third positioning component, and is used to display vibration signals, temperature signals, sound signals, power parameters, the abnormal vibration position, the abnormal temperature position, and the abnormal sound position; A power indicator light is arranged on the cabinet door panel and is used to indicate the power supply status.

3. The device according to claim 2, characterized in that The display component is also used to display troubleshooting instruction information based on the abnormality type.

4. The device according to claim 1, characterized in that The device also includes: a communication component, electrically connected to the vibration sensor, the temperature sensor, the sound sensor, the power parameter acquisition component, the first positioning component, the second positioning component, and the third positioning component, and used for transmitting the vibration signal, the temperature signal, the sound signal, the power parameter, the abnormal vibration position, the abnormal temperature position, and the abnormal sound position; The printing component is electrically connected to the communication component and is used for receiving data through the communication component and printing.

5. The device according to claim 1, characterized in that The mobile load includes a load adjustment component, and the load adjustment component is used to adjust the load type and load capacity of the mobile load, wherein the load type includes an inductive load, a capacitive load, and a combination of the two.

6. The device according to claim 1, characterized in that The vibration sensor is arranged at one or more places of the transmission shaft housing, base, internal combustion engine cylinder housing, and motor housing of the generator, and the temperature sensor is arranged at one or more places of the motor housing, electric box, cooling fan, primary circuit copper busbar joint or inside the motor of the generator, and the preset distance is 2 to 3 meters.

7. The device according to claim 1, characterized in that The device also includes an emergency switching switch, a conversion switch, a leakage detector, a current transformer, and a copper busbar arranged in the main body of the device. The emergency switching switch is used to switch the power supply mode, the conversion switch is used to switch the power transmission line, the leakage detector detects whether there is leakage, the current transformer is used to convert the current size, and the copper busbar is used to realize current transmission, wherein the power supply mode includes a mains power supply mode and a generator power supply mode.

8. The device according to claim 1, characterized in that The vibration signal includes one or more of acceleration, amplitude, and vibration frequency, and the power parameter includes one or more of voltage, current, frequency, phase, harmonics, and power factor.

9. The device according to claim 1, characterized in that The alarm component is also used to compare the vibration signal, temperature signal, sound signal, and power parameter with preset data to determine the number of fault points, and to send out an audible and visual alarm signal when the number of fault points is greater than a preset value.

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