Testing device for verifying voltage ride-through capability of multi-type low-voltage electrical equipment
A low-voltage electrical and voltage ride-through technology, applied in measurement devices, asymmetric measurement of multiphase networks, measurement of electricity, etc., can solve the problems of high waveform capture error rate and lack of emergencies, and reduce the influence of uncertain factors. The effect of improving usability and reducing losses
Pending Publication Date: 2022-05-27
SHANGHAI POWER TRANSMISSION & DISTRIBUTION TESTING CENT
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Problems solved by technology
[0003] At present, the common test is purely manual, requiring testers to operate power supplies, oscilloscopes and other equipment separately. There are deficiencies such as high error rate of waveform capture and lack of protection in case of emergencies.
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Embodiment 1
[0028] see Figure 1-5 , the present invention provides a kind of technical scheme:
[0029] A test device for voltage ride-through capability verification of multiple types of low-voltage electrical equipment, comprising a substation 1, a power meter 2, a total power supply control structure 3, a test control structure 4 and a power distribution cabinet 5, and the substation 1 contains a DC substation The cabinet and AC substation, substation 1, power meter 2, main power control structure 3, test control structure 4 and power distribution cabinet 5 are connected by electrical lines, which is conducive to dealing with various types of low-voltage connections, power meter 2. The main power control structure 3, the test control structure 4 and the power distribution cabinet 5 are centrally connected to the substation 1. The main power control structure 3 includes a main power control box 301 and a sealing cover 305. The outer side of the main power control box 301 slides The he...
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The invention discloses a test device for verifying the voltage ride-through capability of multi-type low-voltage electrical equipment, and the device comprises a power transformation cabinet, a power meter, a main power supply control structure, a test control structure, and a power distribution cabinet. The power transformation cabinet, the power meter, the main power supply control structure, the test control structure and the power distribution cabinet are connected through electric circuits, the power meter, the main power supply control structure, the test control structure and the power distribution cabinet are connected to the power transformation cabinet in a centralized manner, and the main power supply control structure comprises a main power supply control box and a sealing cover. Through the arrangement of a power transformation cabinet, a power meter, a main power supply control structure, a test control structure and a power distribution cabinet, and through the arrangement of various types of low-voltage electrical equipment, including a rectification module, the device is expanded and applied to high and low voltage ride-through capability tests of other low-voltage electrical equipment with similar requirements, and the electrical test practicability is improved.
Description
technical field [0001] The invention relates to the technical field of voltage ride-through capability testing of electrical equipment, in particular to a test device for voltage ride-through capability verification of multiple types of low-voltage electrical equipment. Background technique [0002] In some important application scenarios, the AC input overvoltage and undervoltage protection requirements for low-voltage electrical equipment are relatively high, that is, the equipment is required to have reliable power supply within the specified high and low voltage crossing interval and time limit to ensure the continuous operation of the system. [0003] At present, the common test is purely manual, which requires testers to operate the power supply, oscilloscope and other equipment separately. There are shortcomings such as high waveform capture error rate and lack of protection in emergencies. [0004] The high and low voltage ride through capability test device takes th...
Claims
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IPC IPC(8): G01R31/00G01R29/16
CPCG01R31/00G01R29/16
Inventor 刘剑赵志勇吴益锋
Owner SHANGHAI POWER TRANSMISSION & DISTRIBUTION TESTING CENT