Although it is undesirable by users to cut the electrical current by throwing illegal current protection switches, it is possible not to risk human life against dangerous illegal currents and to prevent the risk of fire. In fact, thousands of people die as a result of electric shock every year, while a illegal flow switch to be used in appropriate values can prevent all these deaths. For this reason, it is obligatory to use illegal current protection switches both in the electrical installation and not to risk our lives.
How to Work Illegal Current Protection Switch?
Illegal current protection switches, thanks to the toroid transformer contained in the stream from the phases by collecting the current rotating from the neutral current as vector. This value, which is 0 in the case of normal operation, measures the illegal current value that is different from 0 in case of illegal current. If the measured value exceeds the threshold value of the switch, a signal is sent to the opening coil and falls into the switch trip.
Errors that cause illegal current formation
Illegal current protection switches usually cut the electric current by throwing in cases of insulation error, insulation error, harmonic effects on devices connected to the electrical line, harmonic effects, incorrect grounding, neutral-solemics.
The effect of lightning on the illegal current protection switch
The lightning fall of electrical -charged clouds as discharge of the soil spreads to large areas through the soil, which is a conductor. As a result of this spread, large -energy impacts mixed into the installation over the grounding conductors of the buildings and cause serious damage to the devices and even a risk of fire. The damage caused by lightning falls not only with the deterioration of the devices, but in some cases it results in the opening of leakage current protection switches despite the fact that there is no real leakage. This is usually experienced in electronic leakage current protection switches, which are now forbidden to use, and the reason is that the thyristors triggered and activate the opening device due to excessive voltage. However, special devices are used to prevent the existing electromechanical leakage current protection switches from being affected by lightning blows. Thanks to these mechanisms, undesirable tenses occur in situations such as lightning or lightning flashing, and these devices do not affect the behavior of the switch in normal leakage current situations.
However, in the installations with bodily leakage and insulation errors, there is a fixed leakage current in the current leakage current, depending on the lightning fall, the small amount of illegal current signals that may go to the opening coil reaches the threshold value and reduce the switches to the trip position. The important point to consider here is the use of type B type paraffudrun in areas where there is a possibility of lightning falling. Parafudr should be connected before the illegal current protection switch, so that the impact currents are damped in the soil before they reach the illegal current protection switch. Another reason that causes illegal current protection switch to lightning air is the formation of insulation errors due to intense moisture and wetness in rainy weather.
Sigma solutions in illegal current protection switches
AC type, type A, B Type Sigma Leakage Current Protection switches provide full comprehensive protection against electrical leakage currents.
Sigma leakage current protection switches protect the safety of life and property by preventing the risk of fire caused by insulation errors while protecting human life in direct or indirect contact against electrical leakages. Sigma Illegal Current Protection Switters According to TS EN 61008-1 standard 2 and 4 polar life protection switch, 300ma fire protection switch up to 125A as an ISO 9001 Quality Assurance System under the Norms of CE.