Generator voltage regulator environmental stress test detection method

Abstract

The invention discloses a generator voltage regulator environmental stress test detection method, which comprises the following steps: 1) confirming the state of a to-be-screened voltage regulator, judging the to-be-screened voltage regulator with abnormal functions as unqualified, and removing the to-be-screened voltage regulator out of a to-be-screened queue; 2) batch environmental stress screening is carried out on the remaining voltage regulators to be screened in the queue to be screened, power is supplied to the voltage regulators to be screened in the screening process, whether the metal LED indicator lamps (3) are extinguished or not is judged, and if the metal LED indicator lamps (3) are extinguished, the voltage regulators to be screened corresponding to the extinguished metal LED indicator lamps (3) are judged to be unqualified; and (3) the remaining voltage regulators to be screened after screening in the step (3) are subjected to state confirmation after screening, the voltage regulators to be screened with abnormal functions are judged to be unqualified, and the voltage regulators to be screened with normal functions are judged to be qualified. The device is economical and applicable, is simple to operate, improves the wiring efficiency, and can achieve batch environmental stress screening of the generator voltage regulator and batch inspection after environmental stress screening.

Description

Technical Field

[0001] The invention relates to the field of generator voltage regulator screening, in particular to a generator voltage regulator environmental stress test detection method. Background Art

[0002] With the advancement of modern science and technology, the requirements for the performance indicators, control accuracy and reliability of generators are getting higher and higher. In order to improve reliability, the generator voltage regulator must be screened for environmental stress. After the generator voltage regulator is screened for environmental stress, its internal potential defects can be accelerated to become faults, which can effectively eliminate the early faults of the voltage regulator, thereby improving reliability.

[0003] Currently, before batch environmental stress screening, testers use high-power resistors and loose wires to connect the generator voltage regulator. Problems such as wiring errors, long wiring time and messy wiring at the test site often occur. During batch environmental stress screening, testers cannot visually observe whether the generator voltage regulator is faulty, and the high-power resistors generate severe heat during the screening process. During large-scale screening, due to messy wiring, the high-power resistors have poor heat dissipation effect, posing a risk of injury. After environmental stress screening, testers need to conduct a separate test inspection on each generator voltage regulator, which is inefficient and time-consuming. Summary of the invention

[0004] The object of the present invention is to provide a method for testing an environmental stress test of a generator voltage regulator, comprising the following steps:

[0005] 1) Connect the adjustable power supply to multiple voltage regulators to be screened.

[0006] Connect aviation socket I, aviation socket II and aviation socket III to the matching aviation plugs of all voltage regulators to be screened.

[0007] Connect each voltage regulator to be screened with a metal LED indicator.

[0008] 2) Confirm the status of the voltage regulator to be screened, determine whether all functions of the voltage regulator to be screened are normal, and determine the voltage regulator to be screened with abnormal functions as unqualified and remove it from the queue to be screened.

[0009] 3) Perform batch environmental stress screening on the remaining voltage regulators to be screened in the screening queue. During the screening process, the voltage regulators to be screened are powered by aviation sockets I, II, and III, and it is determined whether the metal LED indicator light is off. If it is off, the voltage regulator to be screened corresponding to the off metal LED indicator light is determined to be unqualified and removed from the screening queue.

[0010] 4) Confirm the status of the remaining voltage regulators to be screened after step 3), determine whether all functions of the voltage regulators to be screened are normal, judge the voltage regulators to be screened with abnormal functions as unqualified, and judge the voltage regulators to be screened with normal functions as qualified.

[0011] Furthermore, the voltage of the adjustable power supply is adjustable within the range of 0 to 36V.

[0012] Further, the aviation socket I is a Y50X-1832Z30J aviation socket, the aviation socket II is a Y50X-1832Z30KI aviation socket, and the aviation socket III is a Y50X-1832Z30K aviation socket.

[0013] Further, the step of confirming the status of the voltage regulator to be screened includes:

[0014] a1) Adjust the adjustable power supply output voltage to 28V and determine whether the metal LED indicator connected to each voltage regulator to be screened is in a bright state.

[0015] If there is an extinguished metal LED indicator light, the voltage regulator to be screened corresponding to the extinguished metal LED indicator light is judged as unqualified.

[0016] a2) Adjust the output voltage of the adjustable power supply to 29V and determine whether the metal LED indicator connected to each voltage regulator to be screened is off.

[0017] If there is an extinguished metal LED indicator, the voltage regulator to be screened corresponding to the bright metal LED indicator is judged as unqualified.

[0018] Furthermore, during the screening process, aviation socket I, aviation socket II, and aviation socket III output a voltage of 28V.

[0019] Furthermore, each metal LED indicator light is connected to a voltage regulator to be screened and has a number corresponding to the voltage regulator to be screened.

[0020] Furthermore, each metal LED indicator light is connected in parallel with a high-power resistor.

[0021] Furthermore, the resistance of the high-power resistor is 10R and the power is 100W.

[0022] Furthermore, the metal LED indicator light and the high-power resistor are placed in the box, and at least one side of the box is visible.

[0023] Further, the step of confirming the status of the remaining voltage regulators to be screened after the screening in step) includes:

[0024] b1) Adjust the adjustable power supply output voltage to 28V and determine whether the metal LED indicator connected to each voltage regulator to be screened is in a bright state.

[0025] If there is an extinguished metal LED indicator light, the voltage regulator to be screened corresponding to the extinguished metal LED indicator light is judged as unqualified.

[0026] b2) Adjust the output voltage of the adjustable power supply to 29V and determine whether the metal LED indicator connected to each voltage regulator to be screened is off.

[0027] If there is an extinguished metal LED indicator, the voltage regulator to be screened corresponding to the bright metal LED indicator is judged as unqualified.

[0028] The technical effect of the present invention is unquestionable. The present invention is economical and applicable, simple to operate, improves wiring efficiency, and can realize batch environmental stress screening of generator voltage regulators and batch inspection after environmental stress screening.

[0029] The present invention uses an LED indicator light to visually and quickly confirm which generator voltage regulator has a fault.

[0030] The present invention has high versatility and is applicable to voltage regulators with various wiring modes and different rated voltages;

[0031] The present invention is multifunctional and integrated, and has both the function of supplying power to the voltage regulator and the function of detecting the voltage regulator during environmental stress screening;

[0032] The invention has a simple structure, is economical and applicable, is simple and quick to operate, and has high accuracy and reliability, and is suitable for batch production and testing of voltage regulators.

[0033] The present invention arranges high-power resistors in a regular pattern in a box, thereby avoiding poor heat dissipation effect and risk of injury to people, and having high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Provide a block diagram of wiring for a single voltage regulator;

[0035] Figure 2 This is the principle block diagram of the three-wire voltage regulator;

[0036] In the figure, there are adjustable power supply 1, high-power resistor 2, metal LED indicator light 3, aviation socket I4, aviation socket II5, and aviation socket III6. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0038] Embodiment 1:

[0039] See also Figure 1 to Figure 2 , a generator voltage regulator environmental stress test detection method, comprising the following steps:

[0040] 1) Connect the adjustable power supply 1 to multiple voltage regulators to be screened.

[0041] Connect aviation socket I4, aviation socket II5 and aviation socket III6 to the matching aviation plugs of all voltage regulators to be screened respectively.

[0042] Connect each voltage regulator to be screened to the metal LED indicator 3.

[0043] 2) Confirm the status of the voltage regulator to be screened, determine whether all functions of the voltage regulator to be screened are normal, and determine the voltage regulator to be screened with abnormal functions as unqualified and remove it from the queue to be screened.

[0044] 3) Perform batch environmental stress screening on the remaining voltage regulators to be screened in the screening queue. During the screening process, the voltage regulators to be screened are powered by aviation sockets I4, II5, and III6, and it is determined whether the metal LED indicator 3 is off. If it is off, the voltage regulator to be screened corresponding to the extinguished metal LED indicator 3 is determined to be unqualified and removed from the screening queue.

[0045] 4) Confirm the status of the remaining voltage regulators to be screened after the screening in step 3, and determine whether all functions of the voltage regulators to be screened are normal. The voltage regulators to be screened with abnormal functions are judged as unqualified, and the voltage regulators to be screened with normal functions are judged as qualified.

[0046] The voltage of the adjustable power supply 1 is adjustable within the range of 0 to 36V.

[0047] The aviation socket I4 is a Y50X-1832Z30J aviation socket, the aviation socket II5 is a Y50X-1832Z30KI aviation socket, and the aviation socket III6 is a Y50X-1832Z30K aviation socket.

[0048] The steps to confirm the status of the regulator to be screened include:

[0049] a1) Adjust the output voltage of the adjustable power supply 1 to 28V, and determine whether the metal LED indicator light 3 connected to each voltage regulator to be screened is in a bright state.

[0050] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the extinguished metal LED indicator light 3 is judged as unqualified.

[0051] a2) Adjust the output voltage of the adjustable power supply 1 to 29V, and determine whether the metal LED indicator light 3 connected to each voltage regulator to be screened is off.

[0052] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the bright metal LED indicator light 3 is judged as unqualified.

[0053] During the screening process, aviation socket I4, aviation socket II5, and aviation socket III6 output 28V voltage.

[0054] Each metal LED indicator light 3 is connected to a voltage regulator to be screened and has a number corresponding to the voltage regulator to be screened.

[0055] Each metal LED indicator light 3 is connected in parallel with a high-power resistor 2 .

[0056] The metal LED indicator light 3 and the high-power resistor 2 are placed in the box, and at least one side of the box is visible.

[0057] The resistance of high-power resistor 2 is 10R and the power is 100W.

[0058] The steps of confirming the status of the remaining voltage regulators to be screened after the screening in step 3 include:

[0059] b1) Adjust the output voltage of the adjustable power supply 1 to 28V, and determine whether the metal LED indicator light 3 connected to each voltage regulator to be screened is in a bright state.

[0060] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the extinguished metal LED indicator light 3 is judged as unqualified.

[0061] b2) adjusting the output voltage of the adjustable power supply 1 to 29V, and determining whether the metal LED indicator light 3 connected to each voltage regulator to be screened is in an off state.

[0062] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the bright metal LED indicator light 3 is judged as unqualified.

[0063] Embodiment 2:

[0064] A generator voltage regulator environmental stress test detection method comprises the following steps:

[0065] 1) Connect the adjustable power supply 1 to multiple voltage regulators to be screened.

[0066] Connect aviation socket I4, aviation socket II5 and aviation socket III6 to the matching aviation plugs of all voltage regulators to be screened respectively.

[0067] Connect each voltage regulator to be screened to the metal LED indicator 3.

[0068] 2) Confirm the status of the voltage regulator to be screened, determine whether all functions of the voltage regulator to be screened are normal, and determine the voltage regulator to be screened with abnormal functions as unqualified and remove it from the queue to be screened.

[0069] 3) Perform batch environmental stress screening on the remaining voltage regulators to be screened in the screening queue. During the screening process, the voltage regulators to be screened are powered by aviation sockets I4, II5, and III6, and it is determined whether the metal LED indicator 3 is off. If it is off, the voltage regulator to be screened corresponding to the extinguished metal LED indicator 3 is determined to be unqualified and removed from the screening queue.

[0070] 4) Confirm the status of the remaining voltage regulators to be screened after the screening in step 3, and determine whether all functions of the voltage regulators to be screened are normal. The voltage regulators to be screened with abnormal functions are judged as unqualified, and the voltage regulators to be screened with normal functions are judged as qualified.

[0071] Embodiment 3:

[0072] A generator voltage regulator environmental stress test detection method, the technical content is the same as that of Example 2, further, the voltage of the adjustable power supply 1 is adjustable in the range of 0 to 36V.

[0073] Embodiment 4:

[0074] A method for testing environmental stress of a generator voltage regulator, the technical content of which is the same as any one of Embodiments 2-3, further, the aviation socket I4 is a Y50X-1832Z30J aviation socket, the aviation socket II5 is a Y50X-1832Z30KI aviation socket, and the aviation socket III6 is a Y50X-1832Z30K aviation socket.

[0075] Embodiment 5:

[0076] A method for detecting an environmental stress test of a generator voltage regulator, the technical content of which is the same as any one of Embodiments 2-4, and further, the step of confirming the state of the voltage regulator to be screened comprises:

[0077] 1) Adjust the output voltage of the adjustable power supply 1 to 28V, and determine whether the metal LED indicator 3 connected to each voltage regulator to be screened is in a bright state.

[0078] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the extinguished metal LED indicator light 3 is judged as unqualified.

[0079] 2) Adjust the output voltage of the adjustable power supply 1 to 29V, and determine whether the metal LED indicator light 3 connected to each voltage regulator to be screened is off.

[0080] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the bright metal LED indicator light 3 is judged as unqualified.

[0081] Embodiment 6:

[0082] A generator voltage regulator environmental stress test detection method, the technical content is the same as any one of embodiments 2-5, further, during the screening process, aviation socket I4, aviation socket II5, and aviation socket III6 output 28V voltage.

[0083] Embodiment 7:

[0084] A generator voltage regulator environmental stress test detection method, the technical content is the same as any one of embodiments 2-6, further, each metal LED indicator 3 is connected to a voltage regulator to be screened and has a number corresponding to the voltage regulator to be screened.

[0085] Embodiment 8:

[0086] A generator voltage regulator environmental stress test detection method, the technical content is the same as any one of embodiments 2-7, further, each metal LED indicator light 3 is connected in parallel with a high-power resistor 2.

[0087] Embodiment 9:

[0088] A generator voltage regulator environmental stress test detection method, the technical content is the same as any one of embodiments 2-8, further, the metal LED indicator light 3 and the high-power resistor 2 are placed in a box, and at least one side of the box is visible.

[0089] Embodiment 10:

[0090] A generator voltage regulator environmental stress test detection method, the technical content is the same as any one of embodiments 2-9, further, the resistance of the high-power resistor 2 is 10R, and the power is 100W.

[0091] Embodiment 11:

[0092] A method for detecting an environmental stress test of a generator voltage regulator, the technical content of which is the same as any one of embodiments 2-10, and further, the step of confirming the status of the remaining voltage regulators to be screened after the screening in step 3 comprises:

[0093] 1) Adjust the output voltage of the adjustable power supply 1 to 28V, and determine whether the metal LED indicator 3 connected to each voltage regulator to be screened is in a bright state.

[0094] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the extinguished metal LED indicator light 3 is judged as unqualified.

[0095] 2) Adjust the output voltage of the adjustable power supply 1 to 29V, and determine whether the metal LED indicator light 3 connected to each voltage regulator to be screened is off.

[0096] If there is an extinguished metal LED indicator light 3, the voltage regulator to be screened corresponding to the bright metal LED indicator light 3 is judged as unqualified.

[0097] Embodiment 12:

[0098] A generator voltage regulator environmental stress test detection method, the technical content is the same as any one of embodiments 2-11, and further, a heat dissipation module such as a fan is integrated in the box.

[0099] Embodiment 13:

[0100] A generator voltage regulator environmental stress test detection method involves a 0-36V adjustable power supply, 30 metal LED indicator lights, 30 10R / 100W high-power resistors, a Y50X-1832Z30J aviation socket, a Y50X-1832Z30K aviation socket, and a Y50X-1832Z30KI aviation socket.

[0101] The specific steps of this method are as follows:

[0102] 1. Before batch environmental stress screening:

[0103] Before screening, connect the Y50X-1832Z30J aviation socket (serial number 4), Y50X-1832Z30K aviation socket (serial number 6) and Y50X-1832Z30KI aviation socket (serial number 5) to the matching aviation plugs respectively. 30 voltage regulators to be screened can be connected at one time.

[0104] Confirm the status before screening, adjust the output voltage of the adjustable power supply (serial number 1) to 28V. If 30 voltage regulators to be screened are connected at one time, all 30 metal LED indicators (serial number 3) are in a bright state; adjust the output voltage of the adjustable power supply (serial number 1) to 29V, and all 30 metal LED indicators (serial number 3) are in an off state; then all the functions of the voltage regulators to be screened are normal and environmental stress screening can begin.

[0105] 2. During batch environmental stress screening:

[0106] During the environmental stress screening process, the adjustable power supply (serial number 4) outputs a voltage of 28V, and all 30 metal LED indicators (serial number 3) are bright, which means that the 30 screened voltage regulators are not faulty; if a metal LED is off, a screened voltage regulator is faulty, and the metal LED number corresponds to the voltage regulator number.

[0107] 3. After batch environmental stress screening:

[0108] After screening, the status is confirmed. Adjust the output voltage of the adjustable power supply (serial number 1) to 28V, and all 30 metal LED indicator lights (serial number 3) are in a bright state; adjust the output voltage of the adjustable power supply (serial number 1) to 29V, and all 30 metal LED indicator lights (serial number 3) are in an off state; then after screening, all functions of the voltage regulator are normal, and the next step can be carried out.

Claims

1. A generator voltage regulator environmental stress test detection method, characterized in that: The following steps are involved: 1) Connect the adjustable power supply (1) to a plurality of voltage regulators to be screened. Connect aviation socket I (4), aviation socket II (5), and aviation socket III (6) to the matching aviation plugs of all voltage regulators to be screened. Connect each voltage regulator to be screened to a metal LED indicator (3); 2) Confirm the status of the voltage regulator to be screened, determine whether all functions of the voltage regulator to be screened are normal, and determine the voltage regulator to be screened with abnormal functions as unqualified and remove it from the queue to be screened; 3) Performing batch environmental stress screening on the remaining voltage regulators to be screened in the screening queue. During the screening process, the voltage regulators to be screened are powered by aviation socket I (4), aviation socket II (5), and aviation socket III (6), and it is determined whether the metal LED indicator (3) is off. If it is off, the voltage regulator to be screened corresponding to the off metal LED indicator (3) is determined to be unqualified and removed from the screening queue; 4) Confirm the status of the remaining voltage regulators to be screened after step 3), determine whether all functions of the voltage regulators to be screened are normal, judge the voltage regulators to be screened with abnormal functions as unqualified, and judge the voltage regulators to be screened with normal functions as qualified.

2. A generator voltage regulator environmental stress test detection method according to claim 1, characterized in that: The voltage of the adjustable power supply (1) is adjustable within the range of 0 to 36V.

3. A generator voltage regulator environmental stress test detection method according to claim 1, characterized in that: The aviation socket I (4) is a Y50X-1832Z30J aviation socket; the aviation socket II (5) is a Y50X-1832Z30KI aviation socket; and the aviation socket III (6) is a Y50X-1832Z30K aviation socket.

4. A generator voltage regulator environmental stress test detection method according to claim 1, characterized in that: The steps to confirm the status of the regulator to be screened include: 1) adjusting the output voltage of the adjustable power supply (1) to 28V, and judging whether the metal LED indicator (3) connected to each voltage regulator to be screened is in a bright state; If there is an extinguished metal LED indicator (3), the voltage regulator to be screened corresponding to the extinguished metal LED indicator (3) is judged as unqualified; 2) adjusting the output voltage of the adjustable power supply (1) to 29V, and determining whether the metal LED indicator (3) connected to each voltage regulator to be screened is off; If there is an extinguished metal LED indicator light (3), the voltage regulator to be screened corresponding to the bright metal LED indicator light (3) is judged as unqualified.

5. A generator voltage regulator environmental stress test detection method according to claim 1, characterized in that: During the screening process, aviation socket I (4), aviation socket II (5), and aviation socket III (6) output a voltage of 28V.

6. A generator voltage regulator environmental stress test detection method according to claim 1, characterized in that: Each metal LED indicator light (3) is connected to a voltage regulator to be screened and has a number corresponding to the voltage regulator to be screened.

7. A generator voltage regulator environmental stress test detection method according to claim 1, characterized in that: Each metal LED indicator light (3) is connected in parallel with a high-power resistor (2).

8. A generator voltage regulator environmental stress test detection method according to claim 7, characterized in that: The metal LED indicator light (3) and the high-power resistor (2) are placed in the box, and at least one side of the box is visible.

9. A generator voltage regulator environmental stress test detection method according to claim 7, characterized in that: The resistance of the high-power resistor (2) is 10R and the power is 100W.

10. A generator voltage regulator environmental stress test detection method according to claim 1, characterized in that: The step of confirming the status of the remaining voltage regulators to be screened after the screening in step 3) includes: 1) adjusting the output voltage of the adjustable power supply (1) to 28V, and judging whether the metal LED indicator (3) connected to each voltage regulator to be screened is in a bright state; If there is an extinguished metal LED indicator (3), the voltage regulator to be screened corresponding to the extinguished metal LED indicator (3) is judged as unqualified; 2) adjusting the output voltage of the adjustable power supply (1) to 29V, and determining whether the metal LED indicator (3) connected to each voltage regulator to be screened is off; If there is an extinguished metal LED indicator light (3), the voltage regulator to be screened corresponding to the bright metal LED indicator light (3) is judged as unqualified.

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