Temperature sensor for interior of oil immersed transformer and manufacturing method of temperature sensor
A technology of temperature sensor and oil-immersed transformer, applied in the direction of thermometers, thermometers, thermometer parts, etc. with physical/chemical changes, can solve the problems of installation and use damage, low reliability, drift, etc., to achieve convenient monitoring, reliable High performance and simple structure
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Embodiment 1
[0031] refer to figure 1 , the temperature sensor for the interior of the oil-immersed transformer according to the embodiment of the present invention includes an optical fiber 1, an optical fiber connector 2 arranged at the first end of the optical fiber 1, a heat-sensitive element 3 packaged at the second end of the optical fiber 1, and a first protective sheath 4 And the second protective sleeve 5, the first protective sleeve 4 is sleeved on the outer peripheral surface of the second end of the optical fiber 1, the second protective sleeve 5 is sleeved on the other outer peripheral surface of the optical fiber 1, and the first protective sleeve 4 is provided with a radial direction through a plurality of through holes 41 . The optical fiber connector 2 can be any one of metal optical fiber connectors such as ST, FC, and SMA, which is convenient for connecting with other devices.
[0032] combine figure 2 As shown, the end of the first protective sheath 4 , the second en...
Embodiment 2
[0053] Such as Figure 6 As shown, different from the embodiment, the size of the fixed disk 7 of the present embodiment is smaller, the first protective cover 4 is fixed on the fixed disk 7, and the length is greater than that of the fixed disk 7, and its end protrudes from the fixed disk 7 In addition, this design can be applied to detection in a narrower space.
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