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, and electrical equipment rated above 3kV is generally referred to as high-voltage electrical equipment. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, provide protection for power lines and motors, and automatically interrupt the circuit in the event of faults such as severe overload, short circuit, or undervoltage. 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 extensive usage and broad application.

kontaktsysteme electrical component composition

A diode is formed by a PN junction along with corresponding electrode leads and package encapsulation. Using different doping processes and diffusion, P-type and N-type semiconductors are fabricated on the same semiconductor substrate (usually silicon or germanium), forming a space charge region at their interface known as the PN junction. The electrode drawn from the P region is called the anode, and the electrode from the N region is called the cathode. Due to the unidirectional conductivity of the PN junction, current flows from the anode through the interior of the tube to the cathode when the diode is conducting. A diode has two electrodes: the electrode from the P region is the positive terminal, also called the anode; the electrode from the N region is the negative terminal, 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 frequency is controlled by a quartz crystal. 7. Temperature coefficient oscillators refer to oscillators where there is a specific relationship between oscillation frequency and temperature, meaning different temperatures correspond to different oscillation frequencies. Conversely, measuring the output frequency of the oscillator allows for temperature measurement.

kontaktsysteme electrical component applications

Thermistors can also serve as electronic circuit components for temperature compensation in instrument circuits and cold-junction compensation for thermocouples. Utilizing the self-heating characteristics of NTC thermistors enables automatic gain control, forming RC oscillator amplitude-stabilization circuits, delay circuits, and protection circuits. When the self-heating temperature is much higher than the ambient temperature, the resistance is also related to environmental heat dissipation conditions. 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 in color TVs, fire alarms, and temperature compensation. Main disadvantages: (1) The relationship between resistance and temperature is highly 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°C range, which must be noted during use.

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