Temperature measurement device with online calibration function and calibration method for oil-immersed transformation device

A technology for substation equipment and temperature measuring devices, which is applied in measuring devices, thermometer testing/calibration, thermometers with physical/chemical changes, etc., and can solve problems such as online calibration of temperature measuring devices for oil-immersed substation equipment

Active Publication Date: 2017-09-19
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The invention provides an oil-immersed substation equipment temperature measuring device and a calibration method with an online calibration function, so as to solve the proble

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  • Temperature measurement device with online calibration function and calibration method for oil-immersed transformation device
  • Temperature measurement device with online calibration function and calibration method for oil-immersed transformation device
  • Temperature measurement device with online calibration function and calibration method for oil-immersed transformation device

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Embodiment Construction

[0068] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0069] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a temperature measurement device with an online calibration function for an oil-immersed transformation device. The temperature measurement device comprises a composite temperature sensor unit, a pointer display and control unit and an online calibration unit. The composite temperature sensor unit comprises temperature sensing bulb and a temperature measurement element, which are used for measuring the working temperature of the oil-immersed transformation device. The temperature sensing bulb is connected with the pointer display and control unit. The temperature measurement element is connected with the online calibration unit. The pointer display and control unit is used for displaying the working temperature, measured by the temperature sensing bulb, of the oil-immersed transformation device in a pointer manner. The displayed temperature value is a first temperature value. The online calibration unit is used for carrying out online calibration on a second temperature value measured by the temperature measurement element and acquiring calibrated output temperature. The beneficial effects are that online calibration of the temperature measurement device when the oil-immersed transformation device is not in the power outage state is achieved; deviation faults of two meters of the temperature measurement device for the oil-immersed transformation device are eliminated; and the temperature measurement device has great importance in guarantee of safe and stable operation of the oil-immersed transformation device.

Description

technical field [0001] The invention relates to the field of calibration of a temperature measuring device for substation equipment, and more particularly relates to an oil-immersed type substation equipment temperature measuring device and a calibration method with an online calibration function. Background technique [0002] Oil-immersed substation equipment is the core equipment of the power grid, including transformers, high impedance, converters, etc. During normal operation, the inside of oil-immersed substation equipment will present a certain temperature field distribution due to the heating of the winding current and the flow of insulating oil. The temperature measuring device monitors the internal temperature of the oil-immersed substation equipment in real time by monitoring the top oil temperature of the oil-immersed substation equipment and the hot spot temperature under different load currents, and provides real-time early warning and protection. When overheat...

Claims

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Application Information

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IPC IPC(8): G01K11/00G01K15/00
CPCG01K11/00G01K15/005
Inventor 李金忠李鹏张书琦汪可高飞程涣超遇心如孙建涛赵志刚徐征宇王健一赵晓宇刘雪丽汤浩郭锐吴超仇宇舟关键昕贾鹏飞申泽军邓俊宇张亚楠周翠娟
Owner CHINA ELECTRIC POWER RES INST
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