Etien H.G fuses are all current limiting type and are available in a wide range of applications, both internal and external. Various types of HV fuses (high voltage fuses) are preferred together, current limiting models in standard and different shapes, as they are safer and more economical. These types operate silently in a completely closed system.
There will be no flame or gas overflow of the program while it is performing its function. For this reason, filter, flame cell, etc. It includes additional devices such as. If it is inevitable that the fuse will rupture between the rated period and the Imin minimum tripping values, then it is recommended to use a load disconnector reinforced with a special thermal fuse. In this way, the high heat generated inside the fuse ensures that the porcelain body can thermally withstand and it is saved from extreme splits, thermal system life impact and enables the three-pole opening of the load disconnector. In this way, the field is significantly narrowed.
With Etien H.G fuses, you have performance against the thermal and dynamic effects caused by short circuits and over-circuits in your circuits, systems, devices and facilities (lines, transformers, motors, capacitors, etc.) in the voltage range of 6kV-36kV. In addition to the international independent tests of our insurance in our own laboratories, a high quality system is produced in accordance with the ISO 9001:2008 Quality Assurance System Standard, IEC 60282-1, DIN 43625 and TS – EN 60282-1 standards owned by our company. At the same time, fuse type tests (according to IEC 60282-1) were carried out in CESI and ICMET laboratories.
The operation of HV fuses is determined by the customary minimum trip line (Imin) throughout. These fuses only work safely in the area where I am located. In other words, a safe tripping guarantee cannot be given in the area between In (Rated Current) and Imin value. Deterioration between these values of the fuse may cause the fuse to overheat and eventually explode, causing great damage to the environment. Because the melting activity in this critical region melts only in one or a few small parts, and interruptions in the arc circuit formed there continue to occur, thus causing excessive thermal stress. In order to solve this problem, fuses must be equipped with a thermal protection system.
It is located within the internal system of the thermal protection fuse and ensures that in the event of overheating of the fuse, no matter what, before dangerous thermal stress is reached, the impact pin is protected, the switch is opened, and therefore the circuit is interrupted. Fuses with thermal protection systems can only be used in combination with a switch. It should be preferred to use fuses with thermal protection systems in “Ring main unit” panels combined with an automatic switch-on switch and especially with SF6 gas insulation.