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An Optical Fiber Temperature Measuring Structure for 10kv Distribution Transformer

A distribution transformer and optical fiber temperature measurement technology, applied in the field of distribution transformers, can solve the problems of large errors

Active Publication Date: 2019-01-01
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, in the past, the method of installing a current transformer at the lower part of the bushing and returning an analog signal to measure the hot spot temperature of the transformer winding has a large error.

Method used

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  • An Optical Fiber Temperature Measuring Structure for 10kv Distribution Transformer
  • An Optical Fiber Temperature Measuring Structure for 10kv Distribution Transformer
  • An Optical Fiber Temperature Measuring Structure for 10kv Distribution Transformer

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with specific embodiment:

[0018] See attached figure 1 and 2 As shown, an optical fiber temperature measurement structure for a 10KV distribution transformer described in this embodiment includes a high and low voltage winding 1, a sensor oil passage stay 6 installed on the high and low voltage winding 1, and is used to detect high An optical fiber temperature sensor 2 for the inner coil temperature of the low-voltage winding 1, an optical fiber junction box 5 connected to the optical fiber temperature sensor 2 through an optical fiber, a wire clamp 3 for fixing the optical fiber, and a clip 4 for fixing and installing the wire clamp 3. Among them, the low-voltage winding in this scheme adopts a multi-layer cylindrical structure, the oil channel on it is located at 1 / 2 of the overall height of the low-voltage winding, and the sensor oil channel stay is set opposite to the low-voltage outlet; the hig...

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PUM

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Abstract

The invention discloses an optical fiber temperature measuring structure for a 10KV power distribution transformer with reasonable structure, convenient operation and capable of effectively and accurately detecting the hot spot temperature of the inner winding of the transformer; The sensor oil channel support on the winding, the optical fiber temperature sensor used to detect the coil temperature in the high and low voltage winding, the optical fiber junction box connected to the optical fiber temperature sensor through the optical fiber, the wire clamp used to fix the optical fiber, and the fixed installation The clamp of the wire clamp; in this scheme, an optical fiber temperature sensor for detecting the hot spot temperature is installed on the high and low voltage windings in the transformer, and the temperature value detected by the optical fiber temperature sensor is transmitted back to the optical fiber connection by the optical fiber during operation In the box, the temperature of the high and low voltage windings is monitored in real time to ensure that the transformer is in an efficient operation state.

Description

technical field [0001] The invention relates to the technical field of distribution transformers, in particular to an optical fiber temperature measuring structure used in 10KV distribution transformers. Background technique [0002] Generally, the types of transformer faults mainly include thermal faults and electrical faults, among which thermal faults account for about 60% of the total number of faults, and overheating and high-energy discharge faults account for about 10%. The service life of an oil-immersed transformer mainly depends on the service life of the insulating material, and the decisive factor that promotes the aging of the insulating material is the temperature. Therefore, the hot spot temperature of the transformer determines the service life of the transformer. [0003] In the past, due to the internal insulation requirements of the transformer and the strong internal electromagnetic interference, the temperature of the hot spot could not be monitored. Fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K11/32H01F27/40
Inventor 徐晓刚于冀江龙世熠陈晓科汪进锋李鑫
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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