There are many reasons for the burnout of the hott

2022-09-23
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There are many reasons for the burnout of current transformers, which should be noted

in many circuits, current transformers are set up. For this equipment, many power workers are "intertwined with love and hate", and its role is very prominent, but its defects are also obvious. In vulgar terms, it is very expensive, and it may be burned if you are not careful. In many circuits, there are current transformers. For this equipment, many power workers are intertwined with love and hate. Its role is very prominent, but its defects are also obvious. In vulgar terms, it is very expensive, and it may be burned if you are not careful

from a professional point of view, there are many reasons for the burning of current transformers, mainly including four points

1. The secondary open circuit of the current transformer generates high voltage, which causes the current transformer to burn out; 2. The service life of current transformer is too long, insulation aging, partial breakdown or discharge, resulting in overvoltage; 3. The contact surface of the primary connection aluminum bar of the current transformer is too oxidized, the contact resistance is too large, and the heating causes the current transformer to burn out; 4. Users are overloaded

if the cause of this situation can be analyzed, the solution will not be difficult to find. Countermeasures for current transformer burnout mainly include:

1 Install circuit breakers to avoid branch faults affecting the power failure of the whole line, especially to ensure that the branch circuit breakers can trip reliably; 2. Connect the current transformer to the back of the circuit breaker to ensure the correct action and removal of the circuit breaker and lightning arrester when the transformer fails, so the frequency is 32kHz, which meets the CLK clock requirements; 3. Strengthen the high-voltage insulation test of the user's current transformer and lightning arrester, find out the current insulation aging process of the transformer and lightning arrester as soon as possible, and find that people not only have high expectations and requirements for the car, but also replace it in time to avoid the power failure caused by the burnout of the transformer; 4. In addition, the user's equipment should be cleaned regularly to reduce pollution and avoid insulation reduction

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