Transformer safety automatic test system

Abstract

The utility model provides an automatic safety test system for a transformer, which is characterized in that an automatic switching test module is additionally arranged outside a traditional safety tester, and a first test clamp, a second test clamp, a third test clamp, a fourth test clamp and a fifth test clamp are correspondingly and electrically connected with two ends of an output end winding of the transformer, two ends of an input end winding of the transformer and a transformer shell respectively. Lines are switched through the change-over switch assembly, four steps (input-to-output, input-to-shell, output-to-shell and single-winding insulation tests) required by a traditional test can be completed through one-time wiring, an operator only needs to complete one-time wiring operation before the test is started, manual intervention and operation complexity are greatly reduced, and the test efficiency is improved. The whole testing process is more concise and efficient, a large amount of manpower and time cost is saved, and the human error risk possibly caused by frequent wiring operation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer detection equipment technical field, especially a kind of transformer safety automatic test system. BACKGROUND

[0002] As an important device capable of transforming AC voltage, current and impedance, transformer plays a key role in many electrical equipment and systems. To ensure that the transformer can operate safely and stably, and to avoid various serious electrical accidents caused by insulation problems, it is essential to conduct withstand voltage test on the transformer. Through withstand voltage test, it can be found whether the insulation of the transformer meets the corresponding safety requirements, so as to ensure the safe and reliable operation of the entire power system and related equipment.

[0003] The traditional test method is a step-by-step operation mode, which requires 4 independent withstand voltage tests. Moreover, the wiring must be replaced before each test, which makes the entire test process extremely complex and tedious. Secondly, due to the need for multiple manual operations to replace the wiring, the test time is too long, which seriously affects the production efficiency. More importantly, this traditional test method is prone to missed tests or incorrect tests. Once missed or incorrect tests occur, it may lead to the flow of products with poor insulation withstand voltage into the market or into subsequent use links, thereby causing huge safety hazards and economic losses to related equipment, systems and even the entire power network. Therefore, further improvement is needed. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the utility model provides a kind of transformer safety automatic test system, and the automatic switching test module is designed for the problems of prior art, to solve the existing technical problems.

[0005] The utility model aims to realize the following technical solutions:

[0006] A kind of transformer safety automatic test system, including safety test instrument, it further includes the automatic switching test module of two high voltage probes electric connection with safety test instrument, the automatic switching test module is electrically connected and is provided with test clamp one, test clamp two, test clamp three, test clamp four, test clamp five, test clamp one and test clamp four are used to be electrically connected with the two ends of the output end winding of transformer respectively, test clamp two and test clamp three are used to be electrically connected with the two ends of the input end winding of transformer respectively, test clamp five is used to be electrically connected with the shell of transformer.

[0007] Furthermore, the automatic switching test module includes a control board, a switching switch assembly, and a voltage detection coil. The voltage detection coil is wound around the outside of the connecting wires of test clips one, two, three, four, and five to detect voltage data. The control board integrates a serial port module, a switching control module, and a voltage detection module. The input terminal of the switching switch assembly is electrically connected to two high-voltage probes of the safety tester via wires one and two. The output terminal of the switching switch assembly is electrically connected to test clips one, two, three, four, and five via connecting wires. The switching control module is electrically connected to the switching switch assembly to control the switching switch assembly to switch between the five test clips. The voltage detection module is electrically connected to the voltage detection coil to collect the voltage data detected by the voltage detection coil. The serial port module is used to communicate with the serial port of the safety tester.

[0008] Furthermore, the control board also integrates a display alarm module for alerting and detecting abnormal states.

[0009] The beneficial effects of this utility model are as follows:

[0010] This invention adds an automatic switching test module to the traditional safety testing instrument. Test clips one, two, three, four, and five are electrically connected to the two ends of the transformer's output winding, the two ends of the transformer's input winding, and the transformer casing, respectively. By switching the circuit using a switching assembly, the four steps required for traditional testing (input to output, input to casing, output to casing, and single winding insulation test) can be completed with a single wiring operation. Operators only need to complete the wiring operation once before starting the test, greatly reducing manual intervention and operational complexity, making the entire testing process simpler and more efficient. This not only saves a lot of manpower and time costs, but also reduces the risk of human error that may be introduced by frequent wiring operations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the automatic transformer safety testing system of this utility model. Detailed Implementation

[0012] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0013] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0014] To achieve a single wiring operation, reducing manual intervention and operational complexity, the specific details of this utility model are as follows.

[0015] Combination Figure 1 As shown, an embodiment of this utility model is an automatic safety testing system for transformers, including a safety testing instrument. Importantly, it also includes an automatic switching test module electrically connected to two high-voltage probes of the safety testing instrument. The automatic switching test module is electrically connected to test clip one, test clip two, test clip three, test clip four, and test clip five. Test clip one and test clip four are used to be electrically connected to the two ends of the output winding of the transformer, respectively. Test clip two and test clip three are used to be electrically connected to the two ends of the input winding of the transformer, respectively. Test clip five is used to be electrically connected to the transformer casing.

[0016] The main feature of this invention is the addition of an automatic switching test module to the traditional safety testing instrument. Test clips one, two, three, four, and five are electrically connected to the two ends of the transformer's output winding, the two ends of the transformer's input winding, and the transformer casing, respectively. By switching the circuit using a switching assembly, the four steps required for traditional testing (input to output, input to casing, output to casing, and single winding insulation test) can be completed with a single wiring operation. Operators only need to complete the wiring operation once before starting the test, greatly reducing manual intervention and operational complexity, making the entire testing process simpler and more efficient. This not only saves a lot of manpower and time costs but also reduces the risk of human error that may be introduced due to frequent wiring operations.

[0017] Furthermore, in some embodiments, the automatic switching test module includes a control board, a switching switch assembly, and a voltage detection coil. The voltage detection coil is wound around the outside of the connecting wires of test clips one, two, three, four, and five to detect voltage data. The control board integrates a serial port module, a switching control module, and a voltage detection module. The input terminal of the switching switch assembly is electrically connected to two high-voltage probes of the safety tester via wires one and two. The output terminal of the switching switch assembly is electrically connected to test clips one, two, three, four, and five via connecting wires. The switching control module is electrically connected to the switching switch assembly to control the switching switch assembly to switch between the five test clips. The voltage detection module is electrically connected to the voltage detection coil to collect the voltage data detected by the voltage detection coil. The serial port module is used to communicate with the serial port of the safety tester and send a signal to start or stop the test. By simply adding the corresponding components of the automatic switching test module to the traditional safety tester components, automatic switching test can be achieved. The operator only needs to complete the wiring operation once before starting the test, which greatly reduces manual intervention and operational complexity.

[0018] Furthermore, in some embodiments, the control board also integrates a display alarm module to alert users to abnormal detection conditions, facilitating manual monitoring and detection of problems during the detection process.

[0019] The above description is merely illustrative of the embodiments of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model without creative labor should be included within the protection scope of this utility model.

Claims

1. A transformer safety automatic test system comprising a safety tester, characterized in that: The automatic switching test module is electrically connected with two high-voltage probes of the safety regulation tester, and is provided with test clamp one, test clamp two, test clamp three, test clamp four and test clamp five. The automatic switching test module comprises a control panel, a switching switch assembly and a voltage detection coil. The voltage detection coil is arranged outside the connecting lines of the test clamp one, the test clamp two, the test clamp three, the test clamp four and the test clamp five, and is used for corresponding detection of voltage data. The control panel is integrally provided with a serial module, a switching control module and a voltage detection module. The input end of the switching switch assembly is electrically connected with the two high-voltage probes of the safety regulation tester through lines one and two. The output end of the switching switch assembly is electrically connected with the test clamp one, the test clamp two, the test clamp three, the test clamp four and the test clamp five through the connecting lines. The switching control module is electrically connected with the switching switch assembly, and is used for controlling the switching switch assembly to switch the five test clamps. The voltage detection module is electrically connected with the voltage detection coil, and is used for collecting the voltage data detected by the voltage detection coil. The serial module is used for communication with the serial port of the safety regulation tester.

2. The transformer safety automatic test system according to claim 1, characterized in that: The control panel is further integrally provided with a display alarm module, which is used for alarming abnormal detection states.

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