EM-TECHINK electrical components Germany EM-TECHINK model EM-TECHINK price

EM-TECHINK electrical components are instruments used to transform voltage. However, the purpose of a transformer's voltage transformation is to facilitate power transmission, so its capacity is large, generally calculated in kilovolt-amperes or megavolt-amperes; whereas the purpose of a voltage transformer's voltage transformation is mainly to supply power to measuring instruments and relay protection devices, to measure line voltage, power, and energy, or to protect valuable equipment, motors, and transformers in the line when a fault occurs. Therefore, the capacity of a voltage transformer is very small, generally only a few volt-amperes or tens of volt-amperes, and the maximum does not exceed one thousand volt-amperes.

EM-TECHINK electrical component classification

Generator classifications include: (1) Generators are divided into DC generators and AC generators; (2) AC generators are divided into synchronous generators and asynchronous generators (rarely used); (3) AC generators can also be divided into single-phase generators and three-phase generators. There are many types of generators. Principally, they are divided into synchronous generators, asynchronous generators, single-phase generators, and three-phase generators. By generation method, they are divided into steam turbine generators, hydroelectric generators, diesel generators, gasoline generators, etc. By energy source, they are divided into thermal power generators, hydroelectric generators, etc.

EM-TECHINK electrical component reliability

1, Influence of environment on relay reliability: The mean time between failures is highest when the relay operates under GB and SF. 2, Influence of quality grade on relay reliability: The quality grade of the relay has a very significant impact on its reliability performance. 3, Influence of contact form on relay reliability: The contact form of the relay also affects its reliability. The reliability of single-throw relays is higher than that of double-throw relays with the same number of poles, and reliability gradually decreases as the number of poles increases. The mean time between failures for a single-pole single-throw relay is higher than that for a four-pole double-throw relay. 4, Influence of structural type on relay reliability: There are many types of relay structures, and different types all affect their reliability. 5, Influence of temperature on relay reliability: The operating temperature range of a relay is within a certain limit; as the temperature rises, the mean time between failures of the relay gradually decreases. 6, Influence of operating rate on relay reliability: As the operating rate of the relay increases, the mean time between failures basically shows an exponential downward trend. Therefore, if the designed circuit requires a very high operating rate for the relay, the relay needs to be carefully inspected during circuit maintenance to replace it in time. 15, Influence of current ratio on relay reliability: The so-called current ratio is the ratio of the relay's operating load current to its rated load current. The current ratio has a significant impact on the reliability of the relay. Therefore, a load with a larger rated current should be selected during circuit design to reduce the current ratio, ensuring that the reliability of the relay and even the entire circuit is not reduced due to fluctuations in the operating current.

EM-TECHINK electrical component applications

Inductors in circuits mainly perform functions such as filtering, oscillation, delay, and wave trapping, as well as signal screening, noise filtering, current stabilization, and suppression of electromagnetic interference. The most common function of an inductor in a circuit is to form an LC filter circuit together with a capacitor. Capacitors have the characteristic of "blocking DC and passing AC," while inductors have the function of "passing DC and blocking AC." If DC power accompanied by many interference signals passes through an LC filter circuit, the AC interference signals will be converted into heat energy by the inductor and consumed; when the relatively pure DC current passes through the inductor, the AC interference signals within it are also converted into magnetic induction and heat energy. Higher frequencies are more easily impeded by the inductor, which suppresses higher-frequency interference signals. Inductors have the characteristic of blocking AC while allowing DC to pass smoothly; the higher the frequency, the greater the coil impedance. Therefore, the main functions of inductors are to isolate and filter AC signals, or to form resonant circuits with capacitors, resistors, etc.

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