Bartec FEAM electrical components German Bartec FEAM models Bartec FEAM prices

Bartec FEAM electrical components are semiconductor triodes, also known as bipolar junction transistors or crystal triodes, which are semiconductor devices that control current. Their function is to amplify weak signals into electrical signals with larger amplitudes, and they are also used as contactless switches. Triodes are one of the basic semiconductor components, featuring current amplification capabilities, and are core components in electronic circuits. A triode is formed by creating two closely spaced PN junctions on a single semiconductor substrate; these two PN junctions divide the entire semiconductor into three parts: the base region in the middle, and the emitter and collector regions on the sides. The configurations include PNP and NPN types.

Bartec FEAM electrical component classification

For most conductors, at a certain temperature, their resistance remains almost constant at a fixed value; such resistors are called linear resistors. The resistance of some materials changes significantly with current (or voltage), and their volt-ampere characteristic is a curve; such resistors are called nonlinear resistors. For a nonlinear resistor under a given voltage (or current), the ratio of voltage to current is the static resistance at that operating point, and the slope of the volt-ampere characteristic curve is the dynamic resistance. The methods for expressing nonlinear resistor characteristics are relatively complex, but these nonlinear relationships are widely applied in electronic circuits.

Bartec FEAM electrical component functions

The main purposes of disconnect switches (knife switches) are: 1, to isolate the power supply, disconnecting high-voltage maintenance equipment from live equipment to provide a clearly visible break point. 2, disconnect switches operate in coordination with circuit breakers to perform switching operations as required by the system's operating mode, thereby changing the system's wiring configuration. 3, to connect or disconnect low-current circuits. Disconnect switches can perform the following operations: breaking and making bypass currents of closed-loop switches; breaking and making grounding connections at transformer neutral points, but if an arc-suppression coil is connected to the neutral point, operation is permitted only when the system is fault-free; breaking and making voltage transformers and surge arresters; breaking and making capacitive currents of busbars and equipment directly connected to busbars; breaking and making no-load lines with capacitive currents not exceeding 5 amperes; three-gang disconnect switches can break and make loads with voltages of 10 kilovolts and below and currents below 25 amperes. When operating disconnect switches, note that during energization, close the busbar-side disconnect switch first, then the line-side disconnect switch, and finally the circuit breaker. During de-energization, open the circuit breaker first, then open the disconnect switches. Do not operate high-voltage disconnect switches under load.

Bartec FEAM electrical component principles

In chemical batteries, the direct conversion of chemical energy into electrical energy results from spontaneous oxidation-reduction reactions occurring internally within the battery; these reactions take place at two electrodes. The negative electrode active material consists of reducing agents with more negative potentials that are stable in the electrolyte, such as active metals like zinc, cadmium, and lead, as well as hydrogen or hydrocarbons. The positive electrode active material consists of oxidizing agents with more positive potentials that are stable in the electrolyte, such as metal oxides like manganese dioxide, lead dioxide, and nickel oxide, oxygen or air, halogens and their salts, oxyacids and their salts, etc. The electrolyte is a material with good ionic conductivity, such as aqueous solutions of acids, bases, and salts, organic or inorganic non-aqueous solutions, molten salts, or solid electrolytes. When the external circuit is open, although there is a potential difference (open-circuit voltage) between the two electrodes, no current flows, and the chemical energy stored in the battery is not converted into electrical energy. When the external circuit is closed, current flows through the external circuit under the influence of the potential difference between the two electrodes. Simultaneously, inside the battery, since there are no free electrons in the electrolyte, charge transfer must accompany oxidation or reduction reactions at the interface between the active materials of the two electrodes and the electrolyte, as well as mass transfer of reactants and reaction products. Charge transfer in the electrolyte is also accomplished by ion migration. Therefore, normal charge and mass transfer processes within the battery are necessary conditions for ensuring normal electrical energy output. During charging, the directions of charge and mass transfer processes inside the battery are exactly opposite to those during discharging; electrode reactions must be reversible to ensure the normal progress of reverse mass and charge transfer processes. Thus, reversibility of electrode reactions is a necessary condition for constituting a storage battery. This is the fundamental thermodynamic relationship between battery electromotive force and battery reactions, and it is also the fundamental thermodynamic equation for calculating battery energy conversion efficiency. In practice, when current flows through an electrode, the electrode potential deviates from the thermodynamically balanced electrode potential; this phenomenon is called polarization. The greater the current density (current passing through unit electrode area), the more severe the polarization. Polarization is one of the important causes of energy loss in batteries. There are three causes of polarization: (1) polarization caused by the resistance of various parts within the battery is called ohmic polarization; (2) polarization caused by the hindrance of charge transfer processes in the electrode-electrolyte interface layer is called activation polarization; (3) polarization caused by sluggish mass transfer processes in the electrode-electrolyte interface layer is called concentration polarization. Methods to reduce polarization include increasing the electrode reaction area, reducing current density, raising the reaction temperature, and improving the catalytic activity of the electrode surface.

Weidou Intelligent Technology specializes in selling German Bartec FEAM connectors, Bartec FEAM switches, Bartec FEAM relays, Bartec FEAM controllers, Bartec FEAM plugs, Bartec FEAM sensors, Bartec FEAM resistors, Bartec FEAM capacitors, Bartec FEAM buses, Bartec FEAM modules, Bartec FEAM cables, Bartec FEAM power supplies, Bartec FEAM interfaces, Bartec FEAM gateways, Bartec FEAM circuit breakers, Bartec FEAM original imports from Germany. Customers are welcome to inquire and order.