Eurogi electrical components Germany Eurogi model Eurogi price

Eurogi electrical components are switches controlled by electromagnets, that is, a combination of an electromagnet and a switch. When the electromagnet coil is energized, it generates electromagnetic attraction, causing the movable iron core to push or pull the switch contacts to close, thereby connecting the controlled circuit. Electromagnetic switches are widely used in various industries, most commonly as contactors in the industrial sector. An electromagnetic switch is the control switch on a starter motor and is one of the three major components of a starter motor (DC motor, transmission engagement mechanism, electromagnetic switch). Its working principle is that the coil generates electromagnetic attraction when energized, causing the movable iron core to move, thereby on one hand pulling the transmission engagement mechanism to move the starter pinion forward to engage with the engine flywheel ring gear, and on the other hand pushing the switch contacts to connect, enabling the DC motor to operate and thus driving the engine to start.

Eurogi electrical component structure

1, electrodes: The electrodes of a fuel cell are the sites for electrochemical reactions where fuel undergoes oxidation and oxidant undergoes reduction. Their performance depends mainly on the catalyst performance, electrode materials, and electrode manufacturing processes. 2, electrolyte membrane: The main function is to separate the oxidant from the reductant and conduct ions. 5, current collector: Also known as a bipolar plate, it functions to collect current, separate the oxidant from the reductant, and guide reaction gases. The performance of the current collector mainly depends on its material properties, flow field design, and processing technology.

Eurogi electrical component classification

a. By material: silicon transistors, germanium transistors. b. By structure: NPN, PNP. c. By function: switching transistors, power transistors, Darlington transistors, photosensitive transistors, etc. d. By power: low-power transistors, medium-power transistors, high-power transistors. e. By operating frequency: low-frequency transistors, high-frequency transistors, ultra-high-frequency transistors. f. By structural process: alloy transistors, planar transistors. g. By mounting method: through-hole transistors, surface-mount transistors.

Eurogi electrical component types

For different application scenarios, the purpose of using varistors varies, and the voltage/current applied to the varistor differs; therefore, the requirements for varistors also differ. Distinguishing these differences is crucial for correct usage. Based on the purpose of use, varistors can be divided into two main categories: ① protection varistors, and ② circuit function varistors. Protection resistors: (1) Distinguish whether it is a varistor for power supply protection or for signal/data line protection, as they must meet different technical standard requirements. (2) Based on the different continuous operating voltages applied to the varistor, varistors across power lines can be divided into AC type or DC type. Varistors exhibit different aging characteristics under these two types of voltage stress. (3) Based on the different abnormal overvoltage characteristics withstandable by the varistor, varistors can be divided into three types: surge suppression type, high-power type, and high-energy type. 1. Surge suppression type varistors refer to varistors used to suppress transient overvoltages such as lightning overvoltage and switching overvoltage. The occurrence of such transient overvoltages is random and non-periodic, and the peak current and voltage may be very high. The vast majority of varistors belong to this category. 2. High-power type varistors refer to varistors used to absorb continuous pulse groups that occur periodically, such as varistors connected in parallel to switching power supply converters. Here, the impulse voltage occurs periodically with a known period, and the energy value can generally be calculated. Although the peak voltage is not very high, the average power is quite large due to the high frequency of occurrence. 11. High-energy type varistors refer to varistors used to absorb magnetic energy in large inductive coils such as generator excitation coils and lifting electromagnet coils. For such applications, the main technical indicator is energy absorption capacity. The protective function of varistors can be repeated multiple times in most application scenarios, but sometimes they are made into "one-time" protective devices similar to current fuses. For example, varistors with short-circuit contacts connected in parallel to the loads of certain current transformers.

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