System and method for testing no load and load of ultra-high voltage transformer
A transformer and ultra-high voltage technology, applied in the field of high voltage test, can solve the problems of large load loss and high requirements for field test conditions
Inactive Publication Date: 2019-02-22
CHINA ELECTRIC POWER RES INST +3
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Problems solved by technology
However, due to the large air and load loss of the disassembled UHV transformer, the requirements for field test conditions are high, so it is necessary to improve the design of the field test device
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[0030] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.
[0031] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...
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The invention discloses a system and method for testing no load and load of an ultra-high voltage transformer and belongs to the technical field of high voltage tests. The system comprises a test power supply which outputs test voltage and test current to a tested object, a control module which controls the test power supply to generate controllable power supply, outputs an acquisition command tothe data acquisition module, controls system operation, centralized measurement, data processing and safety monitoring, and the data acquisition module which collects test data and the running electrical quantity of each module of the system and transmits the test data and the running electrical quantity to the control module, wherein the test data comprises the test current, the test voltage anda phase difference of the voltage and current. The system can directly measure the no-load loss and load loss of an ultra-high AC voltage transformer and an ultra-high voltage converter transformer onsite. 100% of rated voltage can be applied to the tested transformer in a no-load loss measurement test, and 50% of rated current can be applied to the tested transformer in a load loss measurement test.
Description
technical field [0001] The invention relates to the technical field of high-voltage testing, and more specifically, to a system and method for testing the empty and loaded parts of UHV transformers. Background technique [0002] With the in-depth development of UHV engineering construction, disassembled UHV AC transformers have been implemented in engineering applications, and disassembled converter transformers will soon be implemented in engineering applications. [0003] Because the disassembled transformer needs to complete the production and test of the transformer at the transformer manufacturer, and then disassemble and transport it to the site for reassembly after passing the factory test. During this process, many links are involved in disassembly, transportation, assembly, etc., which may easily cause quality problems, such as During transportation, the iron core and winding may be displaced, deformed or damp. During on-site assembly, there may be problems with the...
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IPC IPC(8): G01R31/00G01R1/36
CPCG01R1/36G01R31/00
Inventor 张书琦李鹏程涣超赵晓宇贾鹏飞遇心如关健昕吴超王琳刘雪丽赵志刚孙建涛汤浩王健一汪可徐征宇赵晓林陶风波李建生卢竹茂俞华
Owner CHINA ELECTRIC POWER RES INST