kontaktsysteme electrical components German kontaktsysteme models kontaktsysteme prices

kontaktsysteme electrical components refer to switching devices capable of closing, carrying, and breaking current under normal circuit conditions, and capable of closing, carrying, and breaking current under abnormal circuit conditions within a specified time. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of application, the boundary between high and low voltage is relatively ambiguous, generally, those above 3kV are referred to as high-voltage electrical equipment. Circuit breakers can be used to distribute electrical energy, infrequently start asynchronous motors, provide protection for power lines and motors, they can automatically disconnect the circuit when faults such as severe overload, short circuit, or undervoltage occur, their function is equivalent to a combination of fuse-switches and thermal over/under-load relays. Moreover, component replacement is generally not required after interrupting fault currents. They have been widely applied. In the generation, transmission, and use of electricity, power distribution is an extremely important link. The distribution system includes transformers and various high- and low-voltage electrical equipment, and low-voltage circuit breakers are a type of electrical equipment with large usage volume and wide application.

kontaktsysteme electrical component composition

A diode is formed by a PN junction plus corresponding electrode leads and package encapsulation. Using different doping processes and diffusion, P-type semiconductor and N-type semiconductor are fabricated on the same semiconductor substrate (usually silicon or germanium), forming a space charge region at their interface called the PN junction. The electrode led from the P region is called the anode, and the electrode led from the N region is called the cathode. Due to the unidirectional conductivity of the PN junction, when the diode conducts, the current flows from the anode through the interior of the tube to the cathode. A diode has two electrodes: the electrode led from the P region is the positive pole, also called the anode; the electrode led from the N region is the negative pole, also called the cathode.

kontaktsysteme electrical component classification

Oscillators are mainly divided into RC, LC oscillators, and crystal oscillators. 1. RC oscillators using an RC network as the frequency-selective phase-shift network are collectively referred to as RC sine wave oscillators, belonging to audio oscillators. 2. LC oscillators using an LC resonant circuit as the phase-shift and frequency-selective network for positive feedback are called LC oscillators. 3. Crystal oscillators are oscillators whose oscillation frequency is controlled by a quartz crystal. 7. Temperature coefficient oscillators refer to a type of oscillator where there is a specific relationship between the oscillation frequency and temperature, i.e., different temperatures correspond to different oscillation frequencies. Conversely, by measuring the output frequency of the oscillator, the temperature value can be determined.

kontaktsysteme electrical component applications

Thermistors can also be used as electronic circuit components for temperature compensation in instrument circuits and cold-junction temperature compensation for thermocouples. Utilizing the self-heating characteristics of NTC thermistors enables automatic gain control, constituting RC oscillator amplitude-stabilization circuits, delay circuits, and protection circuits. When the self-heating temperature is far greater than the ambient temperature, the resistance is also related to the heat dissipation conditions of the environment. Therefore, this characteristic of thermistors is often utilized in flow meters, gas analyzers, and thermal conductivity analysis to create specialized detection elements. PTC thermistors are mainly used for overheat protection of electrical equipment, contactless relays, constant temperature control, automatic gain control, motor starting, time delay, automatic degaussing of color TVs, fire alarms, and temperature compensation. Main disadvantages: (1) the relationship between resistance and temperature is severely nonlinear; (2) poor consistency and interchangeability of components; (3) components are prone to aging and have poor stability; (4) except for special high-temperature thermistors, most thermistors are only suitable for the 0～158℃ range, which must be noted during use.

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