VMELEKTRO electrical components Germany VMELEKTRO model VMELEKTRO price

VMELEKTRO electrical components are devices for detachable (active) connection between optical fibers. They precisely align the end faces of two optical fibers to maximize the coupling of light energy from the transmitting fiber into the receiving fiber, while minimizing the impact on the system due to their insertion into the optical link. This is the basic requirement for fiber optic connectors. To a certain extent, fiber optic connectors affect the reliability and various performance metrics of optical transmission systems.

VMELEKTRO electrical component parameters

1. Nominal varistor voltage: refers to the voltage value across the varistor when a pulse current of specified duration passes through it. 2. Voltage ratio: refers to the ratio of the voltage value generated by the current in the varistor to the voltage value generated by the current in the varistor. 3. Maximum limiting voltage: the peak voltage across the varistor under the maximum pulse peak current Ip that the varistor can withstand and under a specified waveform. 4. Residual voltage ratio: when the current passing through the varistor is at a certain value, the voltage generated across it is called the residual voltage for that current value. The residual voltage ratio is the ratio of the residual voltage to the nominal voltage. 5. Surge current capacity: also known as surge current, it refers to the maximum pulse current value allowed to pass through the varistor under specified conditions. 6. Leakage current: also known as standby current, it refers to the current flowing through the varistor when the varistor is at a specified temperature and under maximum DC voltage. 7. Voltage temperature coefficient: refers to the rate of change of the nominal voltage of the varistor within a specified temperature range, i.e., the relative change in voltage across the varistor when the temperature changes while the current passing through the varistor remains constant. 8. Current temperature coefficient: refers to the relative change in current flowing through the varistor when the temperature changes while the voltage across the varistor remains constant. 9. Voltage nonlinearity coefficient: refers to the ratio of the static resistance value to the dynamic resistance value of the varistor under a given applied voltage. 10. Insulation resistance: refers to the resistance value between the lead wires of the varistor and the insulating surface of the resistor body. 11. Static capacitance: refers to the inherent capacitance of the varistor itself. 12. Rated power: the maximum power at which the varistor operates at a specific ambient temperature, causing a change in varistor voltage. 23. Maximum impulse current: the maximum impulse current that causes a change in varistor voltage when the varistor is subjected to a specific pulse current impulse once or twice.

VMELEKTRO electrical component principle

A diesel engine drives the generator to operate, converting the energy of diesel into electrical energy. Inside the diesel engine cylinder, clean air filtered by the air filter mixes thoroughly with high-pressure atomized diesel injected by the fuel injector. Under the compression of the upward-moving piston, the volume decreases, and the temperature rises rapidly, reaching the ignition point of diesel. The diesel ignites, the mixture burns violently, the volume expands rapidly, pushing the piston downward, which is called "work". A gasoline engine drives the generator to operate, converting the energy of gasoline into electrical energy. Inside the gasoline engine cylinder, the mixture burns violently, the volume expands rapidly, pushing the piston downward to perform work. Whether it is a diesel generator or a gasoline generator, each cylinder performs work in a certain order. The thrust acting on the piston is converted into force to rotate the crankshaft via the connecting rod, thereby driving the crankshaft to rotate. By installing a brushless synchronous AC generator coaxially with the prime mover's crankshaft, the rotation of the prime mover can drive the rotor of the generator. Using the principle of 'electromagnetic induction', the generator outputs induced electromotive force, generating current through a closed load circuit.

VMELEKTRO electrical component classification

General power supplies can be subdivided into: switching power supplies, inverter power supplies, AC stabilized power supplies, DC stabilized power supplies, DC/DC power supplies, communication power supplies, module power supplies, variable frequency power supplies, UPS power supplies, EPS emergency power supplies, purification power supplies, PC power supplies, rectifier power supplies, custom power supplies, heating power supplies, welding power supplies/arc power supplies, electroplating power supplies, network power supplies, power operation power supplies, adapter power supplies, linear power supplies, power controllers/drivers, power power supplies, other general power supplies, parameter power supplies, voltage-regulating power supplies, transformer power supplies. Special power supplies can be subdivided into: shore power supplies, security power supplies, high-voltage power supplies, medical power supplies, military power supplies, aerospace power supplies, laser power supplies, other special power supplies.

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