goehre electrical components Germany goehre model goehre price

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

goehre electrical component structure

The basic structure of a voltage transformer is very similar to that of a transformer; it also has two windings, one called the primary winding and the other called the secondary winding. Both windings are mounted on or wound around the iron core. There is insulation between the two windings and between the windings and the iron core, providing electrical isolation between the two windings and between the windings and the iron core. During operation of the voltage transformer, the primary winding N1 is connected in parallel to the line, and the secondary winding N10 is connected in parallel to instruments or relays. Therefore, when measuring voltage on high-voltage lines, although the primary voltage is very high, the secondary side is low voltage, ensuring the safety of operators and instruments.

goehre electrical component features

Among various types of switches, there is a component with the ability to "sense" objects approaching it—the displacement sensor. Utilizing the sensitivity of the displacement sensor to approaching objects achieves the purpose of controlling the switch to turn on or off; this is a proximity switch. When an object moves toward the proximity switch and approaches within a certain distance, the displacement sensor "senses" it, and the switch activates. This distance is usually called the "detection distance." Different proximity switches have different detection distances. Sometimes the detected object moves toward the proximity switch one by one at certain time intervals, and then leaves one by one, repeating continuously. Different proximity switches have different response capabilities to the detection object. This response characteristic is called the "response frequency."

goehre electrical component parameters

Important aspects of the optical parameters of LED include: luminous flux, luminous efficacy, luminous intensity, light intensity distribution, and wavelength. 1. Luminous efficacy is the ratio of luminous flux to electrical power, with the unit generally being lm/W. Luminous efficacy represents the energy-saving characteristics of the light source, which is an important indicator for measuring the performance of modern light sources. 2.LED Luminous intensity characterizes the strength of light emission in a specific direction. Since the light intensity of LED varies significantly at different spatial angles, we have studied the light intensity distribution characteristics of LED. This parameter has great practical significance, directly affecting the minimum viewing angle of LED display devices. For example, for large-color LED displays in stadiums, if the selected LED single-tube distribution range is very narrow, viewers at larger angles facing the display will see distorted images. Moreover, traffic sign lights also require recognition by people over a wide range. 10. Regarding the spectral characteristics of LED, we mainly examine whether its monochromaticity is excellent, and pay attention to whether the main colors such as red, yellow, blue, green, and white LED are pure. Because in many occasions, such as traffic signal lights, the requirements for color are quite strict. However, observations show that in some LED signal lights in China, the green emits a blue hue, and the red is deep red. From this phenomenon, it is very necessary and meaningful to conduct specialized research on the spectral characteristics of LED.

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