QUINT-PS/1AC/24DC/20 electrical components Germany QUINT-PS/1AC/24DC/20 model QUINT-PS/1AC/24DC/20 price

QUINT-PS/1AC/24DC/20 electrical component is a switch controlled by an electromagnet, that is, a combination of an electromagnet and a switch. When the electromagnet coil is energized, it generates electromagnetic attraction, and the movable iron core pushes or pulls the switch contacts to close, thereby connecting the controlled circuit. Electromagnetic switches are widely used in various industries, most commonly as contactors in the industrial sector. The electromagnetic switch is the control switch on the starter motor and is one of the three major components of the starter motor (DC motor, transmission engagement mechanism, electromagnetic switch). Its working principle is that the coil generates electromagnetic attraction after being energized, causing the movable iron core to move. This, on one hand, pulls the transmission engagement mechanism to move the starter pinion forward to engage with the engine flywheel ring gear, and on the other hand, pushes the switch contacts to connect, allowing the DC motor to be energized and operate, thereby driving the engine to start.

QUINT-PS/1AC/24DC/20 electrical component characteristics

(1) wide transient response range, strong harmonic measurement capability. The quality of transient characteristics is an important parameter for judging whether a transformer can be applied in power systems, especially in coordination with relay protection operating times. Traditional electromagnetic transformers have poor response characteristics to high-frequency signals due to the presence of an iron core and cannot correctly reflect the transient process on the primary side. In contrast, the frequency range of optical current transformers is mainly determined by the electronic circuit part, without the problem of iron core saturation, so they can accurately reflect the transient process on the primary side. The structure of optical sensors allows for the measurement of harmonics on high-voltage power lines, which is difficult to achieve with electromagnetic induction transformers. (2) digital interface, strong communication capability. Since the optical sensor transmits optical digital signals, it is easy to interface with communication networks, and there is no measurement error during transmission. At the same time, with the widespread adoption of microprocessor-based protection and control equipment, optical current transformers can directly provide digital quantities to secondary equipment, thus eliminating the need for converters and A/D sampling parts in the original protection devices, greatly simplifying secondary equipment and promoting research into new protection principles. (3) small size, light weight, easy to upgrade, meeting the requirements for miniaturization and compactness of substations. Since optical sensors rely on sensor heads and electronic circuits for signal acquisition and processing, they are small in size, with a weight generally below 1009 kg, making them easy to integrate into AIS or GIS. This will greatly reduce the floor area of substations, meeting the requirements for substation miniaturization and compactness. At the same time, optical current transformers connect to secondary equipment via a small number of optical fibers, significantly reducing cable trenches and cables.

QUINT-PS/1AC/24DC/20 electrical component composition

1. A general fuse consists of three parts: first, the fusible element part, which is the core of the fuse and serves to cut off the current when it melts. For fuses of the same type and specification, the fusible elements must have the same material, identical geometric dimensions, resistance values as low and consistent as possible, and most importantly, consistent fusing characteristics. Household fuses are commonly made of lead-antimony alloy; second, the electrode part, usually two, which is an important component connecting the fusible element to the circuit. It must have good conductivity and should not produce significant installation contact resistance; third, the holder part. The fusible elements of fuses are generally thin and soft. The role of the holder is to fix the fusible element and make the three parts a rigid whole for easy installation and use. It must have good mechanical strength, insulation, heat resistance, and flame retardancy, and should not exhibit phenomena such as breaking, deformation, combustion, or short circuits during use. 2. Arc extinguishing device: Fuses used in power circuits and high-power equipment not only have the three parts of general fuses but also include an arc extinguishing device. This is because the circuits protected by such fuses not only have large operating currents, but also high voltage across the ends when the fusible element melts. Often, the fusible element has melted (fused) or even vaporized, but the current has not been cut off. The reason is that arcing occurs between the two electrodes of the fuse at the moment of fusing under the action of voltage and current. This arc extinguishing device must have strong insulation and good thermal conductivity, and be negatively charged. Quartz sand is a commonly used arc extinguishing material. 7. Fusing indication device: Some fuses have a fusing indication device. Its function is to cause a certain change in appearance after the fuse operates (fuses), making it easy for maintenance personnel to detect, such as lighting up, changing color, or popping out a solid indicator.

QUINT-PS/1AC/24DC/20 electrical component parameters

1. Voltage temperature coefficient: Refers to the rate of change of the nominal voltage of a varistor within a specified temperature range, that is, the relative change in voltage across the varistor when the temperature changes while the current through the varistor remains constant. 2. 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. 3. Nominal voltage: Refers to the voltage value across the varistor when DC current passes through. 4. Voltage ratio: Refers to the ratio of the voltage generated by the current of the varistor to the voltage generated by the current of the varistor. 5. Maximum limiting voltage: Refers to the highest voltage value that the varistor can withstand across its terminals. 6. Leakage current: Leakage current, also known as standby current, refers to the current flowing through the varistor under specified temperature and maximum DC current conditions. 7. Residual voltage ratio: When the current passing through the varistor is a certain value, the voltage generated across its terminals is called the residual voltage for that current value. The residual voltage ratio is the ratio of the residual voltage to the nominal voltage. 8. Surge current capacity: Surge current capacity, also known as surge current, refers to the maximum pulse (peak) current value allowed to pass through the varistor under specified conditions (specified time intervals and number of times, applying standard impulse current). 9. Static capacitance: Refers to the inherent capacitive capacity of the varistor itself. 10. Insulation resistance: Refers to the resistance value between the leads (pins) of the varistor and the insulated surface of the resistor body. 15. 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.

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