Analysis on the Selection of Low Temperature Resistant Materials for Electric Equipment State Monitoring Device in Cold Areas

Author:

Zhang Hong Da1,Wang Yue1,Liu Li Wei2,Feng Hai Tao2,Li Lin1,Liang Jian Quan1,Sun Wei1

Affiliation:

1. State Grid Heilongjiang Electric Power Company Limited

2. State Grid Heilongjiang Electric Power Co., Ltd.

Abstract

As the important device to perceive the operating state of grid, the condition monitoring device of electric equipment solves such problems as the high rate of false alarm and failure of device caused by the low temperature in winter of cold areas. This paper measures the thermal conductivity of such three kinds of materials as asbestos, rubber and nano porous aerogels in the temperature range of -55°C to +80°C by steady state method, and analyzes the influence of temperature on the thermal conductivity of three materials. According to the result of experiment, the thermal conductivity of nano porous aerogels is the lowest and is affected least by temperature among three kinds of materials. Nano porous aerogels apply to state monitoring device operated in cold areas; and rubber can also be used as thermal insulation material when the operating temperature is generally higher than -20°C.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference11 articles.

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2. Wu Chuanlin, in: New building materials, 2003(5), Application and development of thermal insulation materials in electric power industry. (In Chinese).

3. Chen C Z, Zhu W Y, in: China building materials industry press, 2005, Thermal Insulation Materials And Application Technology. (In Chinese).

4. Wu Lin, Yang He, Yi Delian et al, in: Shanxi architecture, 2005, 31(19):1-2. (In Chinese).

5. Song Jianguang, Liu Yonghua, Chen Linyan et al, in: Material guide, 2010(S1), Research status and development trend of insulation materials at home and abroad. (In Chinese).

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