An experimental device and experimental method for simulating heat generation of traction transformers
The technology of a traction transformer and an experimental method, which is applied in the field of transformer experimental devices, can solve the problems of inability to simulate the traction load of the transformer and the influence of accuracy cannot be excluded, and achieve the effect of avoiding interference and improving measurement accuracy.
Active Publication Date: 2017-10-24
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0004] In view of the fact that the existing measuring devices and methods cannot rule out the influence of strong electric fields and strong magnetic fields on the accuracy of measurement results and cannot simulate the traction load of transformers, the purpose of the present invention is to provide an experimental device and method for simulating the temperature rise of traction transformers
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[0029] The present invention will be further described below in conjunction with accompanying drawing:
[0030] An experimental device for simulating the heat generation of a traction transformer, including an insulation system, a heat generation control system, and an oil flow control cooling system, such as figure 1 As shown, including: No. 1 adjustable DC power supply 1, No. 2 adjustable DC power supply 2, AC power supply 3, insulator 4, insulator base 5, device body 6, cushion block 7, insulating paper tube 8, high-voltage winding 9, low-voltage winding Winding 10, radiator 11, lead wire 12, oil pump 13, flange 14, pressure plate 15, insulating end ring 16, heating wire 17, epoxy resin bucket 18, U-shaped insulating rod 19, iron yoke pad 20, supporting base 21 , insulating oil 22, stay 23, dovetail groove 24, oil conservator 25.
[0031] The insulation system is composed of pads 7, insulating end rings 16, insulating paper tubes 8, stays 23, epoxy resin barrels 18, insula...
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The invention discloses an experimental device and an experimental method for simulating heat generation of a traction transformer, which are used for research experiments on the performance of the traction transformer's temperature field and oil flow field. The experimental device consists of a transformer body, a heat generation control system and an oil circuit cooling control system. This experimental device can easily change the no-load loss and load loss of the transformer without the need for high voltage and high current, and simulate the stable or time-varying load in the transformer, so as to generate a stable or time-varying temperature field and The oil flow field is convenient for subsequent measurement, and at the same time reduces the influence of strong magnetic field and strong electric field on the measuring instrument.
Description
technical field [0001] The invention belongs to the field of transformer experimental devices, and in particular relates to an experimental device for simulating the heat generation of a traction transformer, which can test the temperature and oil flow velocity of the transformer and evaluate the aging condition of the oil paper insulation of the transformer by cooperating with a temperature sensor and a pressure sensor. Background technique [0002] Traction transformer is an important equipment in the railway traction power supply system, its operation reliability is not only related to the safety of the equipment itself but also related to the safety and stability of the railway transportation system. Due to the sharp variability of the traction load, the operating environment of the traction transformer is much worse than that of the power transformer, and its internal temperature field and oil flow field are also very different from those of the power transformer. The o...
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IPC IPC(8): G09B23/18
CPCG09B23/187
Inventor 周利军高仕斌李锦平何正友王东阳江俊飞
Owner SOUTHWEST JIAOTONG UNIV