Portable monitoring and analyzing instrument for temperature rise test of large generator
A technology of temperature rise test and generator, which is applied in the direction of motor generator test, etc., can solve the problems of complex test process and small size, and achieve the effects of slowing down insulation aging, improving service life and preventing excessive temperature rise
Inactive Publication Date: 2013-03-13
HARBIN ELECTRIC MASCH CO LTD
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Problems solved by technology
Usually, many kinds of measuring instruments are needed during the temperature rise test, and the test process is complicated. In order to simplify the time and effort required for debugging the instruments during the test, we have developed a portable monitoring analyzer for large-scale generator temperature rise test, monitoring analysis The instrument is small in size and easy to carry. It can monitor and measure all the electricity and non-electricity required in the temperature rise test, and can perform temperature rise correction and analysis after measurement.
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[0009] Such as figure 1 As shown in a portable large-scale generator temperature rise test monitoring analyzer, the interior of the chassis 16 is divided into two parts: the left part and the right part, and the external sensor terminals I10, External sensor connection terminal Ⅱ 23, Ethernet external interface 11, installed in the left part of the chassis 16, with LabVIEW virtual instrument technology real-time technology as the core, high-performance embedded high-speed data acquisition and record analysis with reconfigurable programmable gate array FPGA Programmable controller system. The programmable controller system includes a real-time controller 5, a board slot chassis 18, an analog input module 6, an analog input module 7, an analog input module 8, an analog input module 9, an analog input module 19, an analog An input module 20 , an analog input module 21 , and a counter module 22 . Real-time controller 5, real-time controller model: NI CRIO 9024, the cycle cycle j...
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The invention discloses a portable monitoring and analyzing instrument for a temperature rise test of a large generator. A touch type industrial tablet personal computer is adopted for controlling a programmable controller system through an Ethernet bus so that a three-phase stator voltage signal, a three-phase stator current signal, a rotating speed signal, a rotor voltage signal, a rotor current signal, a stator winding signal, a key point temperature signal and other signals of the large generator are acquired, calculated and analyzed at a high speed in real time, problems existing in temperature rise are found, the design characteristic of the generator can be tested, and thus, the temperature rise of the generator is prevented from being overhigh in the running process; the possible temperature change conditions of all parts are known when the generator runs under load so that the temperature change value is controlled in a limited range, the insulation aging is slowed down, and the service life of the generator is prolonged; and the portable monitoring and analyzing instrument provides powerful test reference data for the safe and stable running of the generator.
Description
technical field [0001] The invention relates to a portable monitoring analyzer for large-scale generator temperature rise test Background technique [0002] With the rapid development of the power industry, the capacity of the system continues to increase, and its safe and stable operation is becoming more and more important. Long-term operation experience shows that the safety of the system operation is closely related to its operation status. The generator is the main equipment in the power system, and its stable operation is the key to the stable operation of the power system. When the generator is running, due to the existence of various losses, the stator winding, rotor winding and iron core of the generator will heat up, resulting in an increase in the temperature of the generator. If the temperature of each part exceeds the allowable working temperature of the insulating material, the aging of the insulation will be accelerated, thereby greatly shortening the service...
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IPC IPC(8): G01R31/34
Inventor 梁彬刘莹胡丽杰王洪泉高尚韩波孙铎毕纯辉韩卿洋
Owner HARBIN ELECTRIC MASCH CO LTD