Proximity switch; It is mainly used for industrial automation and semi-automatic control system to realize speed and position, limit position detection and counting control. It is a new type of sensor switch element, and it does not detect mechanical contact in object link at all. When the object approaches the detection distance of the switch, the switch control signal is sent. Proximity switch is also called proximity sensor, also called contactless travel switch. In addition to completing travel control and limit protection, or non-contact detection device
Detail
1. The shell of the dense bus duct is assembled with profiles to enable it to withstand strong electric and thermal stresses. According to the data, it passes the dynamic thermal stability test, and the bus shows no perceptible permanent deformation after the test. 2. The dense bus duct conductive bar is covered with multi-layer insulating materials, and can withstand 3750V power frequency withstand voltage. 3. The insulation resistance of each section of the dense bus duct shall not be less than 20M Ω under the normal condition that the ambient air temperature is 20 ± 5 ℃ and the relative humidity is 50~70%. 4. In the long term, intensive bus duct
Detail
The connection of bus bars to voltage distribution devices at all levels in the substation, as well as the connection of electrical equipment such as transformers and corresponding power distribution devices, mostly uses bare conductors or stranded wires with rectangular or circular sections, which are collectively called bus bars. The online teaching of electrical design is taught by the birds on trees. Bus duct is a power distribution device with high efficiency to transmit current, which is especially suitable for the economic and reasonable wiring needs of increasingly high buildings and large-scale factories. With the emergence of modern engineering facilities and equipment, all walks of life
Detail
1. The shell of the dense bus duct is assembled with profiles to enable it to withstand strong electric and thermal stresses. According to the data, it passes the dynamic thermal stability test, and the bus shows no perceptible permanent deformation after the test. 2. The dense bus duct conductive bar is covered with multi-layer insulating materials, and can withstand 3750V power frequency withstand voltage. 3. The insulation resistance of each section of the dense bus duct shall not be less than 20M Ω under the normal condition that the ambient air temperature is 20 ± 5 ℃ and the relative humidity is 50~70%. 4. In the long term, intensive bus duct
2022/12/07
The connection of bus bars to voltage distribution devices at all levels in the substation, as well as the connection of electrical equipment such as transformers and corresponding power distribution devices, mostly uses bare conductors or stranded wires with rectangular or circular sections, which are collectively called bus bars. The online teaching of electrical design is taught by the birds on trees. Bus duct is a power distribution device with high efficiency to transmit current, which is especially suitable for the economic and reasonable wiring needs of increasingly high buildings and large-scale factories. With the emergence of modern engineering facilities and equipment, all walks of life
2022/12/07
Generally speaking, substations will have multiple 10KV outgoing lines, and one 10KV outgoing line may have multiple user loads. In case of single-phase grounding and short circuit fault of 10KV line, if the fault point cannot be quickly and accurately isolated, the fault isolation range may be expanded and normal power consumption of users in non fault section may be affected. The intelligent vacuum demarcation switch controller can quickly and accurately remove the user's short circuit fault and isolate it
2022/12/07
For decades, microelectronics technology has promoted the development of sensor technology. Therefore, the whole industry must establish the sense of innovation, vigorously strengthen the development of new sensors, improve the cost performance ratio of products, accelerate the transformation of scientific research achievements, accelerate the industrialization of new sensors, and rapidly increase the market share of domestic sensors. At present, the sensor industry in China is small in scale and narrow in scope of application. Therefore, it is urgent for us to change our concept and change the research and development of sensors from single physical property sensing
2022/12/07
Under normal power frequency voltage, especially in high temperature and humidity weather or polluted HTV silicone rubber composite insulator may operate under flashover, and the discharge mechanism of hydrophobic composite insulator is different from that of porcelain and glass insulator.
2022/12/07
Wall bushing is a high-quality hardware pipe fitting for structures. Generally, only the research and development unit with ultra-high building science accumulation can produce standard wall bushing. It is widely used in steel and sewage treatment units. Wall bushing must be used in many non concrete walls that are converted to concrete walls.
2022/12/0718102085588
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