Insulation resistance tester is a new generation of transformer DC resistance testing instrument, the instrument is small in size, light in weight, easy to carry. It has the characteristics of rapid measurement, easy to use and high measurement accuracy. The function of self-checking and automatic calibration reduces the difficulty of using and maintaining the instrument. It is also an ideal equipment for measuring dc resistance of transformer windings and high-power inductors.
In actual use, if the insulation resistance tester overheating, is caused by the following points, let's have a look.
1, overload design when the selection of wire and equipment is unreasonable or current load exceeds the rated value, will cause equipment overload heat.
2, poor heat dissipation all kinds of electrical equipment generally have certain heat dissipation or ventilation measures, if these measures are damaged, it may cause overheating of the equipment.
3, poor contact wire joint is not firmly connected, poor contact contact, electrolytic corrosion of copper and aluminum joint will lead to overheating.
4, iron core heating transformer and motor and other equipment insulation damage or long-term overvoltage, eddy current loss and hysteresis loss will cause the transformer and motor core heating, which is prone to overheating.
5, the direct use of the heat generated by the electric lamp and electric furnace work, if the installation site or improper use, may also overheat. If the electric equipment overheats the conductor due to the above reasons or other reasons, and heats combustible materials or objects all around, it may cause a fire.
6, short circuit current in the line generally increased several times to dozens of times, rapidly produce a lot of heat, the heat can make the insulation of the conductor immediately burned through; If the heat to the surrounding combustible, can cause combustion. The cause of a short circuit is that the insulation of the device loses its insulation ability due to aging or high temperature, humidity, or corrosion, or the insulation is mechanically damaged during the installation of the electrical device. In addition, lightning over voltage breakdown insulation and wiring errors, shell collision and other may cause short circuit fault.
Wuhan Xinshengneng is a professional electric power testing equipment manufacturer, not only produces all kinds of electric power testing equipment, and professional technical team to provide all kinds of test technical services, more products more models to choose from, welcome to call 0312-3188565 details!
Insulation resistance tester is a new generation of transformer DC resistance testing instrument, the instrument is small in size, light in weight, easy to carry. It has the characteristics of rapid measurement, easy to use and high measurement accuracy. The function of self-checking and automatic calibration reduces the difficulty of using and maintaining the instrument. It is also an ideal equipment for measuring dc resistance of transformer windings and high-power inductors.
In actual use, if the insulation resistance tester overheating, is caused by the following points, let's have a look.
1, overload design when the selection of wire and equipment is unreasonable or current load exceeds the rated value, will cause equipment overload heat.
2, poor heat dissipation all kinds of electrical equipment generally have certain heat dissipation or ventilation measures, if these measures are damaged, it may cause overheating of the equipment.
3, poor contact wire joint is not firmly connected, poor contact contact, electrolytic corrosion of copper and aluminum joint will lead to overheating.
4, iron core heating transformer and motor and other equipment insulation damage or long-term overvoltage, eddy current loss and hysteresis loss will cause the transformer and motor core heating, which is prone to overheating.
5, the direct use of the heat generated by the electric lamp and electric furnace work, if the installation site or improper use, may also overheat. If the electric equipment overheats the conductor due to the above reasons or other reasons, and heats combustible materials or objects all around, it may cause a fire.
6, short circuit current in the line generally increased several times to dozens of times, rapidly produce a lot of heat, the heat can make the insulation of the conductor immediately burned through; If the heat to the surrounding combustible, can cause combustion. The cause of a short circuit is that the insulation of the device loses its insulation ability due to aging or high temperature, humidity, or corrosion, or the insulation is mechanically damaged during the installation of the electrical device. In addition, lightning over voltage breakdown insulation and wiring errors, shell collision and other may cause short circuit fault.
Wuhan Xinshengneng is a professional electric power testing equipment manufacturer, not only produces all kinds of electric power testing equipment, and professional technical team to provide all kinds of test technical services, more products more models to choose from, welcome to call 0312-3188565 details!
