Detection device and electronic equipment

Abstract

The invention relates to a detection device and electronic equipment, the device comprises a load switch, a characteristic instrument, an oscillograph and a controller, the load switch comprises at least one fracture, the oscillograph comprises a plurality of independent channels used for receiving switching signals, the fracture of the load switch is connected with the independent channels of the oscillograph, and the characteristic instrument is connected with the controller. The characteristic instrument is used for sending a closing instruction to the load switch and the oscillograph and controlling the load switch to carry out closing operation; the oscillograph is used for acquiring target closing time of the load switch and sending the target closing time to the controller; and the controller is used for responding to the received target closing time, and determining that the load switch has closing abnormity under the condition of determining that the target closing time is greater than or equal to the preset standard closing time. Therefore, the target closing time of the load switch can be obtained at the same time, and whether the load switch has a closing fault is determined, so that the detection efficiency of the load switch can be effectively improved, and the stability and safety of a power system can be effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the field of power supply, and specifically, to a detection device and an electronic device. Background Art

[0002] Existing detection devices cannot effectively measure and monitor the load switches of multiple ports simultaneously. In a complex or multi-task electrical system, if one wants to comprehensively understand the working status and potential faults of each load switch, it is necessary to check them one by one, which is not only time-consuming and laborious, but also inefficient. In addition, due to the inability to synchronously monitor the status of all load switches, some faults with strong concealment may not be detected in time, thus affecting the stability and safety of the entire power system. Summary of the Invention

[0003] To overcome the problems existing in the related art, the present disclosure provides a detection device and an electronic device.

[0004] According to a first aspect of an embodiment of the present disclosure, a detection device is provided. The detection device includes a load switch, a characteristic instrument, an oscillograph, and a controller. The load switch includes at least one break. The oscillograph includes a plurality of independent channels for receiving switch signals. The controller is connected to the oscillograph, and the break of the load switch is connected to the independent channel of the oscillograph.

[0005] The characteristic instrument is configured to send a closing command to the load switch and the oscillograph, and control the load switch to perform a closing operation.

[0006] The oscillograph is configured to, in response to receiving the closing command and when determining that the load switch has completed the closing operation, obtain a target closing time of the load switch from the start of the closing operation to the completion of the closing operation, and send the target closing time to the controller.

[0007] The controller is configured to, in response to receiving the target closing time sent by the oscillograph, when determining that the target closing time is greater than or equal to a preset standard closing time, determine that there is an abnormal closing of the load switch.

[0008] Optionally, the load switch includes a load switch closing coil. The characteristic instrument includes a positive electrode interface and a negative electrode interface. The device further includes a closing relay, and the closing relay includes a closing relay coil, a first auxiliary contact, and a second auxiliary contact.

[0009] The positive electrode of the closing relay coil is connected to the positive electrode interface and the first end of the first auxiliary contact. The negative electrode of the closing relay coil is connected to the negative electrode interface and the negative electrode of the load switch closing coil. The second end of the first auxiliary contact is connected to the positive electrode of the load switch closing coil.

[0010] One end of the second auxiliary contact is connected to the first channel of the oscillograph, and the other end of the second auxiliary contact is connected to the common ground terminal of the oscillograph.

[0011] Optionally, the characteristic instrument is further configured to send a tripping command to the load switch and the oscillograph, and control the load switch to perform a tripping operation.

[0012] The oscillograph is further configured to, in response to receiving the tripping command, when it is determined that the load switch has completed the tripping operation, obtain the target tripping time of the load switch from the start of the tripping operation to the completion of the tripping operation, and send the target tripping time to the controller.

[0013] The controller is further configured to, in response to receiving the target tripping time sent by the oscillograph, when it is determined that the target tripping time is greater than or equal to the preset standard tripping time, determine that there is an abnormal tripping of the load switch.

[0014] Optionally, the load switch includes a load switch tripping coil, and the device further includes a tripping relay. The tripping relay includes a tripping relay coil, a third auxiliary contact, and a fourth auxiliary contact.

[0015] The positive pole of the tripping relay coil is connected to the positive pole interface and the first end of the third auxiliary contact. The negative pole of the tripping relay coil is connected to the negative pole interface and the negative pole of the load switch tripping coil. The second end of the third auxiliary contact is connected to the positive pole of the load switch tripping coil.

[0016] One end of the fourth auxiliary contact of the tripping relay is connected to the second channel of the oscillograph, and the other end of the fourth auxiliary contact is connected to the common ground terminal of the oscillograph.

[0017] Optionally, the load switch includes a main contact, a separator, a main arc extinguishing contact, and an auxiliary arc extinguishing contact.

[0018] The first end of the main contact is connected to the first end of the separator. The second end of the main contact is connected to the first end of the main arc extinguishing contact and the first end of the auxiliary arc extinguishing contact. The second end of the separator is connected to the second end of the main arc extinguishing contact and the second end of the auxiliary arc extinguishing contact.

[0019] Optionally, the controller is configured to, in response to receiving the closing command, control the second end of the main contact to be connected to the third channel of the oscillograph, the second end of the separator to be connected to the fourth channel of the oscillograph, and the first end of the separator and the first end of the main contact to be connected to the common ground terminal of the oscillograph, so as to obtain the first target closing time of the main contact and the second target closing time of the separator.

[0020] Optionally, the controller is further configured to, in response to receiving the closing command, control the first ends of the main arc extinguishing contact and the auxiliary arc extinguishing contact to be disconnected.

[0021] Optionally, a controller is configured to, upon receiving a tripping instruction, control the second end of the main contact to be connected to the fifth channel of the oscillograph, the first end of the separator and the first end of the main contact to be connected to the sixth channel of the oscillograph, the first end of the main arcing contact to be connected to the seventh channel of the oscillograph, and the first end of the auxiliary arcing contact and the first end of the main arcing contact to be connected to the eighth channel of the oscillograph, so as to obtain the first target tripping time of the main contact, the second target tripping time of the separator, the third target tripping time of the main arcing contact, and the fourth target tripping time of the auxiliary arcing contact.

[0022] Optionally, the controller is further configured to, upon receiving a tripping instruction, control the second ends of the separator, the main arcing contact, and the auxiliary arcing contact to be connected to the common ground terminal of the oscillograph, and disconnect the first ends of the main arcing contact and the auxiliary arcing contact.

[0023] According to a second aspect of the embodiments of the present disclosure, an electronic device is provided, including the detection device of the first aspect.

[0024] In the above technical solution, by providing a detection device, the device includes a load switch, a characteristic instrument, an oscillograph, and a controller. The load switch includes at least one break. The characteristic instrument includes a closing positive interface and a closing negative interface. The oscillograph includes a plurality of independent channels for receiving switch signals. The controller is respectively connected to the characteristic instrument, the load switch, and the oscillograph. The closing positive interface is connected to the load switch. The closing negative interface is connected to the negative pole of the load switch. The break of the load switch is connected to the independent channel of the oscillograph. The characteristic instrument is configured to send a closing instruction to the load switch and the oscillograph, and control the load switch to perform a closing operation. The oscillograph is configured to, in response to receiving the closing instruction, obtain the target closing time of the load switch from the start of the closing operation to the completion of the closing operation when it is determined that the load switch has completed the closing operation, and send the target closing time to the controller. The controller is configured to, in response to receiving the target closing time sent by the oscillograph, determine that there is a closing abnormality of the load switch when it is determined that the target closing time is greater than or equal to a preset standard closing time. In this way, by connecting the multiple breaks of the load switch to the independent channels of the oscillograph, obtaining the target closing time of at least one break of the load switch at the same time, and determining that there is a closing fault in the break of the load when it is determined that the target closing time is greater than or equal to the preset standard closing time, the detection efficiency of the load switch can be effectively improved, so that the closing fault in the load switch can be timely detected and located, avoiding the occurrence of power system instability or safety accidents caused by the closing fault, and thus effectively improving the stability and safety of the power system.

[0025] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0026] The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the accompanying drawings:

[0027] Figure 1 is a block diagram of a detection device shown according to an exemplary embodiment;

[0028] Figure 2 is a schematic diagram of a recorder shown according to an exemplary embodiment;

[0029] Figure 3 is according to Figure 1 the shown embodiment is a circuit diagram of a detection device;

[0030] Figure 4 is according to Figure 3 the shown embodiment is a circuit diagram of a detection device;

[0031] Figure 5 is a circuit diagram of a load switch shown according to an exemplary embodiment;

[0032] Figure 6 is a block diagram of an electronic device shown according to an exemplary embodiment.

[0033] Description of reference numerals

[0034] 101 Characteristic instrument 102 Load switch

[0035] 103 Recorder 104 Controller

[0036] P+ Positive electrode interface P- Negative electrode interface

[0037] CR Closing relay coil HC Load switch closing coil

[0038] A1 First auxiliary contact A2 Second auxiliary contact

[0039] DR Tripping relay coil OC Load switch tripping coil

[0040] B1 Third auxiliary contact B2 Fourth auxiliary contact

[0041] ГК Main contact OD Separator

[0042] DK1 Main arc extinguishing contact DK2 Auxiliary arc extinguishing contact

[0043] G Generator T Transformer

[0044] P Isolating switch 3P Earthing switch

[0045] R Loop resistance Detailed implementation manners

[0046] The following will describe the detailed implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0047] Before introducing the detailed implementation manners of the present disclosure, the application scenarios of the present disclosure are described as follows. The present disclosure can be applied to the application scenario of detecting multiple break ports of a load switch. Existing mechanical characteristic meters can only measure the switch performance parameters (such as closing time, opening time, three-phase closing and opening non-synchronism, operating voltage, etc.) of a load switch with one break port. For a specific type of load switch, such as the КΑГ-24-30 / 30000У3 type switch with four break ports, the current detection device cannot provide sufficient support to meet its test requirements, which may lead to potential fault problems of the КΑГ-24-30 / 30000У3 type switch during use not being discovered and solved in time, thus affecting the safety and reliability of the generator set and its related power system.

[0048] To solve the above technical problems, by connecting multiple break ports of the load switch to independent channels of the oscillograph, and simultaneously obtaining the target closing time of at least one break port of the load switch, and determining that there is a closing fault in the break port of the load when the target closing time is greater than or equal to the preset standard closing time, the detection efficiency of the load switch can be effectively improved, so that the closing fault in the load switch can be discovered and located in time, avoiding the occurrence of power system instability or safety accidents caused by the closing fault, and thus effectively improving the stability and safety of the power system.

[0049] Figure 1 is a block diagram of a detection device 100 shown according to an exemplary embodiment, as Figure 1 shown. The device includes a load switch 102, a characteristic meter 101, an oscillograph 103, and a controller 104. The load switch 102 includes at least one break port. The oscillograph 103 includes multiple independent channels for receiving switch signals. The characteristic meter 101 is connected to the load switch 102. The controller 104 is connected to the oscillograph 103. The break port of the load switch 102 is connected to the independent channel of the oscillograph 103.

[0050] The characteristic meter 101 is configured to send a closing instruction to the load switch 102 and the oscillograph 103, and control the load switch 102 to perform a closing operation.

[0051] The oscillograph 103 is configured to, in response to receiving the closing instruction, obtain the target closing time of the load switch 102 from the start of the closing operation to the completion of the closing operation when it is determined that the load switch 102 has completed the closing operation, and send the target closing time to the controller 104.

[0052] A controller 104, configured to determine that there is an abnormal closing of the load switch 102 when it is determined that the target closing time is greater than or equal to a preset standard closing time in response to receiving the target closing time sent by the oscillograph 103.

[0053] Among them, the characteristic instrument 101 can be a CT2009 high-voltage switch operation characteristic instrument 101, or other models of high-voltage switch operation characteristic instruments 101. The characteristic instrument 101 includes a closing positive interface and a closing negative interface. The closing positive interface is connected to the load switch 102, and the closing negative interface is connected to the negative pole of the load switch 102. The oscillograph 103 can include multiple independent channels for receiving switch signals, such as Figure 2 shown Figure 2 is a schematic diagram of an oscillograph 103 shown according to an exemplary embodiment. The oscillograph 103 can be a WDGL VI / A oscillograph 103, including 16 independent channels for receiving switch signals, namely oscillograph 103 channel 1 - oscillograph 103 channel 16. The characteristic instrument 101 can issue precise opening or closing commands through a built-in control circuit. It should be noted that the characteristic instrument 101 is also connected to a 220V AC power supply, and the operating power supply of the characteristic instrument 101 selects DC 220V.

[0054] In the above technical solution, by connecting multiple break points of the load switch to the independent channels of the oscillograph, obtaining the target closing time of at least one break point of the load switch at the same time, and determining that there is a closing fault in the break point of the load when it is determined that the target closing time is greater than or equal to the preset standard closing time, the detection efficiency of the load switch can be effectively improved, so that the closing fault in the load switch can be discovered and located in time, avoiding the occurrence of power system instability or safety accidents caused by the closing fault, and thus effectively improving the stability and safety of the power system.

[0055] Figure 3 is a circuit diagram of a detection device 100 shown according to an Figure 1 illustrated embodiment, as Figure 3 shown, the characteristic instrument includes a positive interface P+ and a negative interface P-, the load switch 102 includes a load switch closing coil HC, the device further includes a closing relay, and the closing relay includes a closing relay coil CR, a first auxiliary contact A1 and a second auxiliary contact A2.

[0056] The positive pole of the closing relay coil CR is connected to the positive interface P+ and the first end of the first auxiliary contact A1, the negative pole of the closing relay coil CR is connected to the negative interface P- and the negative pole of the load switch closing coil HC, and the second end of the first auxiliary contact A1 is connected to the positive pole of the load switch closing coil HC.

[0057] One end of the second auxiliary contact A2 is connected to the first channel of the oscillograph 103, and the other end of the second auxiliary contact A2 is connected to the common ground terminal of the oscillograph 103.

[0058] Among them, the closing relay can be a DC closing relay for providing an operating power supply. When the characteristic instrument 101 issues a closing command, the positive interface of the characteristic instrument provides 220V DC power, enabling the closing relay coil CR to be energized. The first auxiliary contact A1 of the closing relay closes, and the current flows into the load switch closing coil HC through the closing relay contact, driving the load switch 102 to perform a closing operation. At the same time, the second auxiliary contact of the closing relay also closes, sending a digital quantity signal to the first channel of the oscillograph 103 to record the time when the closing command is issued.

[0059] The above technical solution can effectively improve the accuracy and reliability of power system detection by precisely controlling the closing process of the load switch and real-time monitoring of key signals by the oscillograph, thereby effectively improving the stability and reliability of the power system.

[0060] Optionally, the characteristic instrument 101 is further configured to issue a tripping command to the load switch 102 and the oscillograph 103 and control the load switch 102 to perform a tripping operation;

[0061] The oscillograph 103 is further configured to, in response to receiving the tripping command, when it is determined that the load switch 102 has completed the tripping operation, obtain the target tripping time of the load switch 102 from the start of the tripping operation to the completion of the tripping operation, and send the target tripping time to the controller 104;

[0062] The controller 104 is further configured to, in response to receiving the target tripping time sent by the oscillograph 103, when it is determined that the target tripping time is greater than or equal to the preset standard tripping time, determine that the load switch 102 has an abnormal tripping.

[0063] Among them, the characteristic instrument 101 can be a CT2009 high-voltage switch action characteristic instrument, or other models of high-voltage switch action characteristic instruments. The oscillograph 103 can be a WDGL VI / A oscillograph 103, or other models of oscillographs 103 including multiple independent channels for receiving switch signals.

[0064] The above technical solution can monitor and diagnose faults in the closing and tripping operations of the load switch through the collaborative work of the characteristic instrument, the oscillograph, and the controller, thereby effectively improving the reliability and safety of the power system.

[0065] Figure 4 is based on Figure 3 The circuit diagram of a detection device 100 shown in the illustrated embodiment is as Figure 4As shown, the load switch 102 includes a load switch opening coil OC. The device further includes a tripping relay, and the tripping relay includes a tripping relay coil DR, a third auxiliary contact B1, and a fourth auxiliary contact B2.

[0066] The positive pole of the tripping relay coil DR is connected to the positive pole interface P+ and the first end of the third auxiliary contact B1. The negative pole of the tripping relay coil DR is connected to the negative pole interface P- and the negative pole of the load switch opening coil OC. The second end of the third auxiliary contact B1 is connected to the positive pole of the load switch opening coil OC.

[0067] One end of the fourth auxiliary contact B2 of the tripping relay is connected to the second channel of the oscillograph 103, and the other end of the fourth auxiliary contact B2 is connected to the common ground terminal of the oscillograph 103.

[0068] Among them, the tripping relay can be a DC tripping relay for providing an operating power supply. The characteristic instrument 101 sends a tripping command to the tripping relay through the positive pole interface and the negative pole interface. After the tripping relay coil DR is energized, the third auxiliary contact B1 of the tripping relay closes, providing a power path for the load switch opening coil OC, so that the load switch 102 performs a tripping action. After receiving the tripping command, the load switch 102 performs the corresponding tripping action through the opening coil to cut off the circuit. The fourth auxiliary contact B2 transmits the signal generated during the tripping process to the second channel of the oscillograph 103 for recording. The oscillograph 103 monitors the time from the start of the tripping operation of the load switch 102 to the completion of the tripping operation and records it as the target tripping time.

[0069] The above technical solution can effectively improve the accuracy and reliability of power system detection by precisely controlling the tripping process of the load switch and real-time monitoring of key signals by the oscillograph, thereby effectively improving the stability and reliability of the power system.

[0070] Figure 5 is a circuit diagram of a load switch shown according to an exemplary embodiment. As Figure 5 shown, the load switch 102 includes a main contact ГК, a separator OD, a main arc extinguishing contact DK1, and an auxiliary arc extinguishing contact DK2.

[0071] The first end of the main contact ГК is connected to the first end of the separator OD. The second end of the main contact ГК is connected to the first ends of the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2. The second end of the separator OD is connected to the second ends of the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2.

[0072] One end of the load switch 102 is connected to the generator G and is used to transmit the electric energy generated by the generator G to the transformer T or the power grid. The other end of the load switch 102 is connected to the transformer T, and the high-voltage electric energy from the generator G can be voltage-converted through the transformer T to meet different power grid requirements. The load switch 102 may further include a disconnecting switch P, an earthing switch 3P, and a loop resistance R. One end of the disconnecting switch P is connected to the transformer T, and the other end of the disconnecting switch P is connected to the earthing switch 3P and the first end of the main contact ГК, and is used to physically isolate the circuit during maintenance or repair to ensure the safety of the staff. The disconnecting switch P can be manually operated and usually does not have the ability to switch under load. One end of the earthing switch 3P is connected to the first end of the disconnecting switch P and the main contact ГК, and the other end is grounded. It is used to ground a part of the circuit during equipment maintenance or fault handling to prevent accidental electric shock and ensure the safety of the equipment. The earthing switch 3PГК is usually used after the disconnecting switch PP is disconnected. One end of the loop resistance R is connected to the first end of the auxiliary arc extinguishing contact DK2, and the other end of the loop resistance R is connected to the first end of the main arc extinguishing contact DK1, the second end of the main contact ГК, and the generator G. The loop resistance R refers to the total resistance in the entire circuit, including the resistance of wires, contacts, and other components.

[0073] When the load switch 102 is operating normally, the electric energy generated by the generator G is transmitted to the transformer T through the main contact ГК, and the disconnecting switch P is in the closed state. When maintenance or repair is required, first, the main contact ГК is disconnected through the controller 104, then the disconnecting switch P is operated to disconnect it, and finally, the earthing switch 3P is used to ground the circuit to ensure safety. During the power-off process, the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2 work together to quickly extinguish the arc generated when the circuit is disconnected, protecting the main contact ГК from damage.

[0074] Optionally, still taking Figure 5 as an example, the controller 104 is used to control the second end of the main contact ГК to be connected to the third channel of the oscillograph 103, the second end of the separator OD to be connected to the fourth channel of the oscillograph 103, and the first end of the separator OD and the first end of the main contact ГК to be connected to the common grounding end of the oscillograph 103 when receiving a closing command, so as to obtain the first target closing time of the main contact ГК and the second target closing time of the separator OD.

[0075] The controller 104 is further used to control the disconnection of the main contact ГК from the generator G and the disconnection of the first ends of the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2 when receiving a closing command.

[0076] Among them, when detecting the first target closing time of the main contact ГК of the load switch 102 and the second target closing time of the separator OD, if it is determined that a closing instruction is received, control the main contact ГК to disconnect from the generator G, disconnect the first ends of the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2, and control the second end of the main contact ГК to be connected to the third channel of the oscillograph 103, the second end of the separator OD to be connected to the fourth channel of the oscillograph 103, and the first ends of the separator OD and the main contact ГК to be connected to the common grounding terminal of the oscillograph 103, so as to obtain the first target closing time of the main contact ГК and the second target closing time of the separator OD simultaneously.

[0077] It should be noted that Figure 5 X in it indicates that this position should be temporarily disconnected. When detecting the closing time of the main contact ГК and the auxiliary arc extinguishing contact DK2, it is necessary to disconnect the power supply on the generator G side to prevent accidental current from passing through and avoid harm to the test equipment and personnel. The main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2 are mainly used to extinguish the arc, but it is not necessary to actually generate an arc during the process of detecting the closing time of the main contact ГК and the auxiliary arc extinguishing contact DK2. It is necessary to disconnect the first ends of the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2 to avoid unnecessary arc generation and reduce potential risks.

[0078] The above technical solution realizes synchronous measurement of the first target closing time of the main contact and the second target closing time of the separator by the controller configuring the circuit connections of the main contact and the separator simultaneously when receiving the closing instruction, which can improve the test efficiency of multiple disconnections of the load switch, comprehensively evaluate the overall performance of the load switch, ensure the stability and safety of the power system, and thus effectively improve the overall reliability of the power system.

[0079] Optionally, the controller 104 is used to control the second end of the main contact ГК to be connected to the fifth channel of the oscillograph 103, the first ends of the separator OD and the main contact ГК to be connected to the sixth channel of the oscillograph 103, the first end of the main arc extinguishing contact DK1 to be connected to the seventh channel of the oscillograph 103, and the first ends of the auxiliary arc extinguishing contact DK2 and the main arc extinguishing contact DK1 to be connected to the eighth channel of the oscillograph 103 when receiving a tripping instruction, so as to obtain the first target tripping time of the main contact ГК, the second target tripping time of the separator OD, the third target tripping time of the main arc extinguishing contact DK1, and the fourth target tripping time of the auxiliary arc extinguishing contact DK2.

[0080] Among them, when detecting the first target opening time of the main contact ГК of the load switch 102, the second target opening time of the separator OD, the third target opening time of the main arc extinguishing contact DK1, and the fourth target opening time of the auxiliary arc extinguishing contact DK2, if it is determined that a tripping command is received, control the main contact ГК to disconnect from the generator G, disconnect the first ends of the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2, and control the second ends of the separator OD, the main arc extinguishing contact DK1, and the auxiliary arc extinguishing contact DK2 to be connected to the common grounding terminal of the oscillograph 103. The second end of the main contact ГК is connected to the fifth channel of the oscillograph 103. The first end of the separator OD and the first end of the main contact ГК are connected to the sixth channel of the oscillograph 103. The first end of the main arc extinguishing contact DK1 is connected to the seventh channel of the oscillograph 103. The first end of the auxiliary arc extinguishing contact DK2 is connected to the eighth channel of the oscillograph 103, so as to simultaneously obtain the first target opening time of the main contact ГК, the second target opening time of the separator OD, the third target opening time of the main arc extinguishing contact DK1, and the fourth target opening time of the auxiliary arc extinguishing contact DK2.

[0081] It should be noted that in the case of the first target opening time of the main contact ГК of the load switch 102, the second target opening time of the separator OD, the third target opening time of the main arc extinguishing contact DK1, and the fourth target opening time of the auxiliary arc extinguishing contact DK2, it is necessary to disconnect the power supply on the generator G side to prevent accidental current from passing through and avoid harm to the test equipment and personnel. The main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2 are mainly used to extinguish the arc, but it is not necessary to actually generate an arc during the process of detecting the closing time of the main contact ГК and the auxiliary arc extinguishing contact DK2. It is necessary to disconnect the first ends of the main arc extinguishing contact DK1 and the auxiliary arc extinguishing contact DK2 to avoid unnecessary arc generation and reduce potential risks.

[0082] The above technical solution, when the controller receives a tripping command, simultaneously configures the circuit connections of the main contact, the separator, the main arc extinguishing contact, and the auxiliary arc extinguishing contact, and synchronously measures the first target opening time of the main contact, the second target opening time of the separator, the third target opening time of the main arc extinguishing contact, and the fourth target opening time of the auxiliary arc extinguishing contact. It can not only effectively improve the test efficiency of multiple break points of the load switch, but also comprehensively evaluate the overall performance of the load switch, thus ensuring the stability and safety of the power system, and further effectively improving the reliability of the power system.

[0083] Regarding the device in the above embodiment, the specific manners in which each module performs operations have been described in detail in the embodiment related to the method, and will not be elaborated here.

[0084] Figure 6It is a block diagram of an electronic device 600 shown according to an exemplary embodiment. As Figure 6 shown, the electronic device 600 may include the above-described detection device 100.

[0085] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept scope of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0086] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0087] Furthermore, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A detection device, characterized in that: The invention comprises a load switch, a characteristic meter, a recorder and a controller. The load switch comprises at least one break. The recorder comprises a plurality of independent channels for receiving switch signals. The controller is connected to the recorder. The break of the load switch is connected to the independent channels of the recorder. Characteristic instrument, used to send closing instructions to the load switch and recorder, and control the load switch to perform closing operation; The recorder is used for, in response to receiving the closing instruction, obtaining a target closing time of the load switch from starting the closing operation to completing the closing operation when it is determined that the load switch has completed the closing operation, and sending the target closing time to the controller; The controller is used for, in response to receiving the target closing time sent by the recorder, determining that there is a closing abnormality of the load switch when it is determined that the target closing time is greater than or equal to a preset standard closing time.

2. The detection device according to claim 1, characterized in that The load switch includes a load switch closing coil, the characteristic instrument includes a positive electrode interface and a negative electrode interface, the device also includes a closing relay, and the closing relay includes a closing relay coil, a first auxiliary contact and a second auxiliary contact. The positive pole of the closing relay coil is connected to the positive pole interface and the first end of the first auxiliary contact, the negative pole of the closing relay coil is connected to the negative pole interface and the negative pole of the load switch closing coil, and the second end of the first auxiliary contact is connected to the positive pole of the load switch closing coil; One end of the second auxiliary contact is connected to the first channel of the recorder, and the other end of the second auxiliary contact is connected to the common grounding terminal of the recorder.

3. The detection device according to claim 1, characterized in that The characteristic meter is also used to send a tripping command to the load switch and the recorder, and control the load switch to perform the tripping operation; The recorder is further used for, in response to receiving the opening instruction, obtaining a target opening time of the load switch from starting the opening operation to completing the opening operation when it is determined that the load switch has completed the opening operation, and sending the target opening time to the controller; The controller is also used to respond to receiving the target opening time sent by the recorder, and determine that there is an opening abnormality of the load switch when it is determined that the target opening time is greater than or equal to the preset standard opening time.

4. The detection device according to claim 2, characterized in that The load switch includes a load switch opening coil, and the device also includes an opening relay, and the opening relay includes an opening relay coil, a third auxiliary contact and a fourth auxiliary contact. The positive pole of the opening relay coil is connected to the positive pole interface and the first end of the third auxiliary contact, the negative pole of the opening relay coil is connected to the negative pole interface and the negative pole of the load switch opening coil, and the second end of the third auxiliary contact is connected to the positive pole of the load switch opening coil; One end of the fourth auxiliary contact of the opening relay is connected to the second channel of the oscilloscope, and the other end of the fourth auxiliary contact is connected to the common grounding terminal of the oscilloscope.

5. The detection device according to claim 1, characterized in that The load switch includes main contacts, separators, main arc extinguishing contacts and auxiliary arc extinguishing contacts. The first end of the main contact is connected to the first end of the separator, the second end of the main contact is connected to the first end of the main arc extinguishing contact and the first end of the auxiliary arc extinguishing contact, and the second end of the separator is connected to the second end of the main arc extinguishing contact and the second end of the auxiliary arc extinguishing contact.

6. The detection device according to claim 5, characterized in that The controller is used to control the second end of the main contact to be connected to the third channel of the recorder, the second end of the separator to be connected to the fourth channel of the recorder, and the first end of the separator and the first end of the main contact to be connected to the common ground terminal of the recorder when receiving a closing command, so as to obtain a first target closing time of the main contact and a second target closing time of the separator.

7. The detection device according to claim 6, characterized in that The controller is also used to control the first end of the main arc extinguishing contact and the first end of the auxiliary arc extinguishing contact to be disconnected when receiving a closing command.

8. The detection device according to claim 5, characterized in that The controller is used to control the second end of the main contact to be connected to the fifth channel of the recorder, the first end of the separator and the first end of the main contact to be connected to the sixth channel of the recorder, the first end of the main arc extinguishing contact to be connected to the seventh channel of the recorder, and the first end of the auxiliary arc extinguishing contact and the first end of the main arc extinguishing contact to be connected to the eighth channel of the recorder when receiving an opening command, so as to obtain the first target opening time of the main contact, the second target opening time of the separator, the third target opening time of the main arc extinguishing contact and the fourth target opening time of the auxiliary arc extinguishing contact.

9. The detection device according to claim 8, characterized in that The controller is also used to control the second end of the separator, the second end of the main arc extinguishing contact and the second end of the auxiliary arc extinguishing contact to be connected to the common ground terminal of the recorder, and the first end of the main arc extinguishing contact and the first end of the auxiliary arc extinguishing contact to be disconnected when receiving a trip command.

10. An electronic device, characterized in that: include: The detection device according to any one of claims 1 to 9.

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