Comprehensive testing device for high-voltage transformer
By designing a comprehensive test device for high-voltage transformers including boosting units and voltage dividers, the problem that existing equipment cannot test high-voltage transformers in high-voltage states is solved, and the testing of various important parameters of high-voltage transformers is realized, ensuring product performance and production stability.
Patent Information
- Application Number
- CN202421247586.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Existing integrated transformer testing equipment cannot test all important parameters of high-voltage transformers in high-voltage state, resulting in an impact on the product performance and production of high-voltage transformers.
A comprehensive test device for high-voltage transformer is designed, including a chassis, a boosting unit, a voltage division unit, a test display unit, a test interface and a power supply power supply. Through the combination of a boosting unit and a voltage division unit, various important parameters of the high-voltage transformer can be tested in a high-voltage state.
It realizes all important parameters for testing high-voltage transformers in high-voltage state, with a simple structure and low cost, ensuring the performance and production of high-voltage transformers.
Smart Images
Figure CN222825618U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a comprehensive testing device for high-voltage transformers. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The transformer consists of an iron core (or magnetic core) and a coil. The coil has two or more windings, of which the winding connected to the power supply is called the primary coil, and the remaining windings are called secondary coils. The transformer includes a magnetic core, a coil, pins, and a power lead. It is particularly important to test the yield of the transformer and pick out defective products. However, the existing transformer comprehensive testing equipment can only be used to test the main electrical performance indicators of conventional transformers under the conventional voltage state of 0-380V, and cannot test the important parameters of high-voltage transformers under high-voltage state. If the relevant parameter values of the high-voltage transformer are unknown, it will directly affect the performance and production of high-voltage transformer products. Summary of the invention
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-voltage transformer comprehensive testing device which can test various important parameters of the high-voltage transformer under high-voltage state and has a simple structure and low cost.
[0004] In order to solve the above technical problems, the utility model adopts such a high-voltage transformer comprehensive test device, including a chassis, a boost unit, a voltage divider unit, a test display unit, a test interface and a power supply, the boost unit and the voltage divider unit are installed in the chassis, the test display unit and the test interface are installed on the chassis panel, the boost unit includes an isolation transformer and a boost transformer, the voltage divider unit includes a first voltage divider circuit and a second voltage divider circuit, the test display unit includes an input voltmeter, a tap voltmeter, an output voltmeter and a no-load current meter, the test interface includes a first input terminal, a second input terminal, and a voltage divider circuit. end, 0V end, a first output end and a second output end, the isolation transformer is electrically connected to a step-up transformer, the step-up transformer is electrically connected to a first voltage-dividing circuit, the first voltage-dividing circuit is electrically connected to an input voltmeter, the second voltage-dividing circuit is electrically connected to a tap voltmeter, the first input end and the 0V end are electrically connected to the first voltage-dividing circuit, the second input end is electrically connected to the second voltage-dividing circuit, the first output end and the second output end are electrically connected to an output voltmeter and a no-load ammeter, and the isolation transformer, the input voltmeter, the tap voltmeter, the output voltmeter and the no-load ammeter are electrically connected to the power supply respectively.
[0005] As a preferred implementation mode of the present utility model, the isolation transformer adopts a 220V-220V isolation transformer, and the power supply adopts a 220V AC power supply.
[0006] As a preferred implementation mode of the present utility model, the step-up transformer adopts a two-speed adjustable step-up transformer of 2700V / 3500V.
[0007] As a preferred implementation manner of the utility model, the input voltmeter, the tap voltmeter, and the output voltmeter are digital display AC voltmeters, and the no-load ammeter is a digital display AC ammeter.
[0008] As a preferred implementation manner of the utility model, the boost unit further includes a voltage regulator, and the voltage regulator is electrically connected to the isolation transformer and the boost transformer respectively.
[0009] After adopting the above structure, the utility model has the following beneficial effects:
[0010] The utility model discloses a comprehensive test device for a high-voltage transformer, comprising a chassis, a boost unit, a voltage divider unit, a test display unit, a test interface and a power supply, wherein the boost unit and the voltage divider unit are installed in the chassis, the test display unit and the test interface are installed on a chassis panel, the boost unit comprises an isolation transformer and a boost transformer, the voltage divider unit comprises a first voltage divider circuit and a second voltage divider circuit, the test display unit comprises an input voltmeter, a tap voltmeter, an output voltmeter and a no-load current meter, the test interface comprises a first input terminal, a second input terminal, a 0V terminal, a first The output end and the second output end, the isolation transformer is electrically connected to the step-up transformer, the step-up transformer is electrically connected to the first voltage-dividing circuit, the first voltage-dividing circuit is electrically connected to the input voltage meter, the second voltage-dividing circuit is electrically connected to the tap voltage meter, the first input end and the 0V end are electrically connected to the first voltage-dividing circuit, the second input end is electrically connected to the second voltage-dividing circuit, the first output end and the second output end are electrically connected to the output voltage meter and the no-load current meter, and the isolation transformer, the input voltage meter, the tap voltage meter, the output voltage meter and the no-load current meter are electrically connected to the power supply. When the utility model is tested, the two pins of the primary coil of the high-voltage transformer are respectively connected to the first input end and the 0V end, the tap pin of the primary coil is connected to the second input end, and the two pins of the secondary coil are respectively connected to the first output end and the second output end, and the power supply is turned on. The input voltage meter, the tap voltage meter, the output voltage meter and the no-load current meter can respectively display the input high voltage voltage, the primary coil tap voltage, the secondary coil output voltage and the secondary coil no-load current. In this way, the utility model can test various important parameters of the high-voltage transformer under high-voltage state. The utility model is also very simple in structure and low in cost, thus ensuring the performance and production of the high-voltage transformer product.
[0011] The isolation transformer of the utility model adopts a 220V-220V isolation transformer, the power supply adopts a 220V AC power supply, the step-up transformer adopts a 2700V / 3500V two-speed adjustable step-up transformer, the input voltmeter, tap voltmeter, and output voltmeter adopt digital display AC voltmeter, and the no-load ammeter adopts a digital display AC ammeter. In this way, the isolation transformer of the utility model adopts a 220V-220V isolation transformer, and the power supply adopts a 220V mains electricity, which is more convenient and desirable; the step-up transformer of the utility model adopts a 2700V / 3500V two-speed adjustable step-up transformer, which can realize the high-voltage transformer test under two high-voltage states; the utility model adopts a digital display AC voltmeter and a digital display AC ammeter, and the test parameter display is more intuitive and accurate.
[0012] The boost unit of the utility model further comprises a voltage regulator, and the voltage regulator is electrically connected to the isolation transformer and the boost transformer respectively, so that the utility model can obtain more levels of test voltage, further improving the applicability of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.
[0014] Figure 1 The utility model is a schematic diagram of the circuit principle structure of a high-voltage transformer comprehensive testing device.
[0015] Figure 2 The utility model is a schematic diagram of the chassis panel structure of the high-voltage transformer comprehensive testing device.
[0016] Figure 3 The utility model is a schematic diagram of the internal structure of the chassis of the high-voltage transformer comprehensive testing device. DETAILED DESCRIPTION
[0017] See also Figure 1 , 2, a high-voltage transformer comprehensive test device as shown in 3, including a chassis 100, a boost unit, a voltage divider unit, a test display unit, a test interface and a power supply 101, the boost unit and the voltage divider unit are installed in the chassis 100, the test display unit and the test interface are installed on the chassis panel 102, the boost unit includes an isolation transformer 1 and a boost transformer 2, the voltage divider unit includes a first voltage divider circuit 3 and a second voltage divider circuit 4, the test display unit includes an input voltmeter 5, a tap voltmeter 6, an output voltmeter 7 and a no-load current meter 8, the test interface includes a first input terminal 9, a second input terminal 10, a 0V terminal 11, a first output terminal 12 and a second output terminal 13, the isolation transformer 1 is electrically connected to the boost transformer 2, the boost transformer 2 is electrically connected to the first voltage divider circuit 3, the first voltage divider circuit 3 is electrically connected to the input voltmeter 5, the second voltage divider circuit 4 is electrically connected to the tap voltmeter 6, the first input terminal 9 and the 0V terminal 11 are electrically connected to the first voltage divider circuit 3, the second input terminal 10 is electrically connected to the second voltage divider circuit 4, the first output terminal 12 and the second output terminal 13 are electrically connected to the output voltmeter 7 and the no-load ammeter 8, and the isolation transformer 1, the input voltmeter 5, the tap voltmeter 6, the output voltmeter 7 and the no-load ammeter 8 are electrically connected to the power supply 101 respectively.
[0018] As a preferred embodiment of the present invention, Figure 1 , 3 As shown, the isolation transformer 1 adopts a 220V-220V isolation transformer, and the power supply 101 adopts a 220V AC power supply.
[0019] As a preferred embodiment of the present invention, Figure 1 , 3 As shown, the step-up transformer 2 adopts a two-speed adjustable step-up transformer of 2700V / 3500V.
[0020] As a preferred embodiment of the present invention, Figure 1 , 2 As shown, the input voltmeter 5, the tap voltmeter 6, and the output voltmeter 7 are digital display AC voltmeters, and the no-load ammeter 8 is a digital display AC ammeter.
[0021] As a preferred embodiment of the present invention, Figure 1 , 3 As shown, the boost unit further includes a voltage regulator 14, and the voltage regulator 14 is electrically connected to the isolation transformer 1 and the boost transformer 2 respectively.
[0022] In practical applications, the voltage regulator 14 of the present invention can be a 0-500V voltage regulator.
[0023] The utility model is also equipped with a leakage protection device, which can realize automatic power off; the first input terminal 9 and the second input terminal 10 of the high-voltage test interface are both connected by insulating rods, which can prevent the tester from being electrocuted due to misoperation.
[0024] When the utility model is tested, the two pins of the primary coil of the high-voltage transformer are connected to the first input terminal 9 and the 0V terminal 11 respectively, the tap pin of the primary coil is connected to the second input terminal 10, the two pins of the secondary coil are connected to the first output terminal 12 and the second output terminal 13 respectively, and the power supply 101 is turned on. The input voltmeter 5, the tap voltmeter 6, the output voltmeter 7 and the no-load ammeter 8 can respectively display the input high-voltage voltage, the primary coil tap voltage, the secondary coil output voltage and the secondary coil no-load current. In this way, the utility model obtains various important parameters of the high-voltage transformer tested under high-voltage state.
[0025] The utility model isolation transformer 1 adopts 220V-220V isolation transformer, and the power supply 101 adopts 220V mains electricity, which is convenient and desirable; the utility model step-up transformer 2 adopts 2700V / 3500V two-speed adjustable step-up transformer, which can realize high-voltage transformer testing under two high-voltage states; the utility model input voltage meter 5, tap voltage meter 6, output voltage meter 7 and no-load current meter 8 adopt digital display meters, and the test parameter display is very intuitive and accurate; the utility model step-up unit also adds a voltage regulator 14, so that the utility model can obtain more gears of test voltage. Therefore, the applicability of the utility model is very good.
[0026] After trial use, the utility model has been found to have a simple structure and a low cost, and can test various important parameters of a high-voltage transformer under a high-voltage state, thus achieving good practical effects.
Claims
1. A high-voltage transformer comprehensive test device, comprising a chassis (100), a boost unit, a voltage divider unit, a test display unit, a test interface and a power supply (101), wherein the boost unit and the voltage divider unit are installed in the chassis (100), and the test display unit and the test interface are installed on a chassis panel (102), characterized in that: The boost unit comprises an isolation transformer (1) and a boost transformer (2); the voltage divider unit comprises a first voltage divider circuit (3) and a second voltage divider circuit (4); the test display unit comprises an input voltmeter (5), a tap voltmeter (6), an output voltmeter (7) and a no-load current meter (8); the test interface comprises a first input terminal (9), a second input terminal (10), a 0V terminal (11), a first output terminal (12) and a second output terminal (13); the isolation transformer (1) is electrically connected to the boost transformer (2); the boost transformer (2) is electrically connected to the first voltage divider circuit (3); the first voltage divider circuit (4) is electrically connected to the first voltage divider circuit (5); the first voltage divider circuit (5) is electrically connected to the first voltage divider circuit (6); the first voltage divider circuit (7) is electrically connected to the first voltage divider circuit (7); the first voltage divider circuit (8) is electrically connected to the first voltage divider circuit (11); the first voltage divider circuit (12) is electrically connected to the first voltage divider circuit (12); the first voltage divider circuit (13) is electrically connected to the first voltage divider circuit (13); the first voltage divider circuit (14) is electrically connected to the first voltage divider circuit (15 ... The voltage dividing circuit (3) is electrically connected to an input voltage meter (5), the second voltage dividing circuit (4) is electrically connected to a tap voltage meter (6), the first input terminal (9) and the 0V terminal (11) are electrically connected to the first voltage dividing circuit (3), the second input terminal (10) is electrically connected to the second voltage dividing circuit (4), the first output terminal (12) and the second output terminal (13) are electrically connected to an output voltage meter (7) and a no-load ammeter (8), and the isolation transformer (1), the input voltage meter (5), the tap voltage meter (6), the output voltage meter (7) and the no-load ammeter (8) are electrically connected to the power supply (101), respectively.
2. The high-voltage transformer comprehensive testing device according to claim 1 is characterized in that: The isolation transformer (1) adopts a 220V-220V isolation transformer, and the power supply (101) adopts a 220V AC power supply.
3. The high-voltage transformer comprehensive testing device according to claim 1 is characterized in that: The step-up transformer (2) is a two-speed adjustable step-up transformer of 2700V / 3500V.
4. The high-voltage transformer comprehensive testing device according to claim 1 is characterized in that: The input voltmeter (5), the tap voltmeter (6), and the output voltmeter (7) are digital display AC voltmeters, and the no-load ammeter (8) is a digital display AC ammeter.
5. The high-voltage transformer comprehensive testing device according to claim 1 is characterized in that: The boost unit further comprises a voltage regulator (14), wherein the voltage regulator (14) is electrically connected to the isolation transformer (1) and the boost transformer (2) respectively.