Universal testing system of frequency transformer and current transformer
A general-purpose testing and testing system technology, applied in frequency measuring devices, instruments, measuring electricity and other directions, can solve the problem that the inverter performance test cannot be performed, the inverter testing equipment or the inverter testing equipment cannot be used universally, and the inverter performance cannot be tested. And other issues
Inactive Publication Date: 2010-06-16
三一集团有限公司北京分公司
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Problems solved by technology
[0003] The current frequency converter test equipment can only test the performance of the frequency converter, but cannot test the performance of the converter
Correspondingly, the current converter testing equipment can only test the performance of the converter, but cannot test the performance of the frequency converter
[0004] To sum up, the current inverter test equipment or converter test equipment cannot be used universally, and can only perform performance tests for their respective equipment
Method used
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[0042] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0043] see figure 1 , which is a structural diagram of the first embodiment of the universal testing system for frequency converters and converters provided by the present invention.
[0044] The universal test system for frequency converters and converters provided in this embodiment includes: a power supply transformer 103 , a four-quadrant frequency converter 105 , a first motor 106 , a second motor 107 , a device under test 109 , and a test system monitoring module 111 .
[0045] The device under test 109 is a frequency converter or a converter.
[0046] The input end of the power supply transformer 103 is connected to the power supply grid 101 , and the output end of the power supply transformer 103 is connected to the input end ...
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The invention provides a universal testing system of a frequency transformer and a current transformer, which comprises a power supply transformer, a four-quadrant frequency transformer, a first motor, a second motor, tested equipment and a testing system monitoring module; the tested equipment is the frequency transformer or the current transformer; the input end of the power supply transformer is connected with a power supply electric network, and the output end of the power supply transformer is connected with the input end of the four-quadrant frequency transformer; the output end of the four-quadrant frequency transformer is connected with a stator of the first motor; the first motor and the second motor are connected together through a coupler; the second motor is connected with the tested equipment and controlled by the tested equipment; the tested equipment is connected with the output end of the power supply transformer; and the testing system monitoring module is used for monitoring and controlling the state parameters of the power supply transformer, the four-quadrant frequency transformer, the first motor and the second motor and measuring the performance parameter of the tested equipment. The testing system not only can realize the testing for the current transformer, but also can realize the testing for the frequency transformer.
Description
technical field [0001] The invention relates to the technical field of testing, in particular to a general testing system for frequency converters and converters. Background technique [0002] The frequency converter is a power control device that converts the power frequency power supply to another frequency by using the on and off of power semiconductor devices. A converter is a power control device that changes the voltage, frequency, phase number and other power or characteristics of the power system. [0003] The current frequency converter testing equipment can only test the performance of the frequency converter, but cannot test the performance of the converter. Correspondingly, the current converter testing equipment can only test the performance of the converter, but cannot test the performance of the frequency converter. [0004] To sum up, the current frequency converter test equipment or converter test equipment cannot be used universally, and can only perform ...
Claims
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IPC IPC(8): G01R31/00G01R19/00G01R23/02
Inventor 周建虎曾赣生余铁辉
Owner 三一集团有限公司北京分公司