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05-08

Advantages of SF6 circuit breaker

1. Strong breaking capacity The SF6 circuit breaker completes the arc blowing by blowing out SF6 gas. Its arc blowing speed is fast, the arc time is short, and the breaking current is large, which is effective Protect the safety of medium and high voltage circuits. After the SF6 circuit breaker disconnects the capacitor or inductive current, there is no danger of reignition or re-ignition. 2. Long electrical life Sulfur hexafluoride circuit breakers have a long service life, a long maintenance cycle, and can adapt to frequent operations in a short period of time, with good safety and durability. Sulfur hexafluoride circuit breakers can be opened continuously for 19 times with a full capacity of 50kA, and the cumulative current of the opening has reached 4200kA. 3. High insulation level Sulfur hexafluoride circuit breakers use sulfur hexafluoride gas as the insulating medium. This gas has a very high insulation level. It can easily pass various insulation experiments under 0.3MPa pressure and has a large margin. 4. Good sealing performance Sulfur hexafluoride circuit breakers have simple structure and good airtightness. The interrupter, resistor, and pillar are separated into independent gas partitions, and the water content of sulfur hexafluoride itself is relatively low. The installation and maintenance of the SF6 circuit breaker are convenient, and the internal structure of the circuit breaker does not need to be opened, so that the internal structure of the SF6 circuit breaker can be kept well airtight.
Advantages of SF6 circuit breaker
06-28

Introduction to the production process of anti-corrosion power fittings

Introduction to the production process of anti-corrosion power fittings 　　The problem to be solved is that the existing gold has effective resistance to acid and alkali corrosion. The manufacturing process of corrosion-resistant power accessories is as follows: 　　 1. First, remove the dirt on the surface of the power accessories, and then apply a layer of paint evenly to increase the toughness and flexibility on the surface of the power accessories. 　　 2. Apply a layer of epoxy resin on the joint, and place a layer of glass cloth before the epoxy layer hardens. 　　3. Cover the surface of the fittings covered with glass cloth with two layers of epoxy resin. After the two layers of epoxy resin are cured, apply three layers of epoxy resin, spread two layers of glass cloth, and then cure the three layers of epoxy resin. Next, apply four layers of epoxy on the two layers of glass cloth. 　　 Continue to coat four epoxy layers with one or more epoxy layers. Continue to coat the second layer of epoxy with one or more layers of epoxy. The corrosion-resistant hardware consists of two layers: a flexible layer coated on top of the hardware, a layer of epoxy resin, a layer of glass cloth and a layer of epoxy resin. Coat three layers of epoxy resin on every two layers of epoxy resin, place two layers of glass cloth, and coat four layers of epoxy resin. Corrosion-resistant power accessories are manufactured in a new way and have the advantages of corrosion resistance, good insulation performance, good mechanical bearing capacity, and good flexibility.
Introduction to the production process of anti-corrosion power fittings
05-08

Talking about the Digital Transformation in the Field of Power Equipment

Digital transformation is a strategic issue Digital transformation, transformation is the subject and digitalization is the attributive. In other words, transformation comes first, and digitalization is a tool of transformation. Therefore, we need to think about why and how to transform before we can think about the value and significance of digitalization. What is transformation? For most companies, transformation is strictly a strategic transformation. The definition Baidu knows is: "Enterprise transformation refers to the overall transformation of the company's long-term business direction, operating model, and corresponding organizational methods, and resource allocation methods. It is the way for companies to reshape their competitive advantages, enhance social value, and achieve a new corporate form. Process. At present, the transformation of most enterprises in my country is mainly the transformation of corporate strategy." Therefore, for power equipment companies, digital transformation is not just to use digital technology to enhance the technical added value of products, such as "first and second integration", but to achieve strategic business directions, operating models, organizational models, and resource allocation methods. change. As far as the power equipment manufacturer is concerned, it seems that it has not achieved the recombination of the above four elements. The essence of its business model is still the original "product-driven sales", and its products themselves have not achieved one or two integrations. It's a one-time-two-shot combination. Digital transformation is firstly driven by services The first step in digital transformation is to transform the overall driving force of the enterprise from product-driven, engineering-driven, to a customer value-oriented service-driven model. This kind of transformation looks simple, but in fact it is extremely difficult. If you are interested, you can refer to "Who Says Elephants Can’t Dance" written by former IBM President Gerstner. He led IBM from a product-driven company to a real " The service-driven business of “Information Technology Service” has been transforming for 10 years, which is not easy. So what is service-driven digital transformation? To make an inappropriate analogy, it is like a former mercury sphygmomanometer who developed a digital sphygmomanometer and then began to shout "Digital transformation of blood pressure management, this is the future of great health". This is far from enough. . The real service drive is to aim at the whole process of patient cardiovascular health management, through blood pressure monitoring, cardiovascular system diagnosis, drug treatment, exercise guidance, and continuous health status assessment, and continuous iteration of the PDCA cycle. In this process, the digital sphygmomanometer is of course very important, but it is only a digital input for assessing the health of the cardiovascular system. In this process, the establishment of cardiovascular health data models, evaluation models, and drug evaluation models, and the personalized modeling and continuous follow-up evaluation of each patient are the core of digitalization. A manufacturer that sells digital sphygmomanometers, if you say you want to do the above things, it is impossible, so you need to build a big and healthy digital industrial ecology, and the sphygmomanometer is precisely the link with the lowest strategic potential in the ecology. In fact, this is the concept of service-driven digital transformation. Digital transformation is mainly the transformation of strategic supporting elements If we construct a strategic analysis framework for power equipment manufacturers, from the perspectives of market space, market share changes, growth factors analysis, current core competitiveness, etc., the domestic power equipment field is actually a strategically less sexy market . As China's power demand enters a stage of low-to-medium-speed growth, the market's incremental space has narrowed, equipment production capacity has become apparently surplus, and competition has intensified. It is difficult for the current core competitiveness to support subsequent market changes. Digital transformation, future service industry chain integration opportunities Digitalization may bring a ten-fold increase in efficiency in certain fields, and may bring ten-fold growth in the service sector. The prerequisite for ten-fold growth is to open up links in the industry chain, especially upstream equipment and downstream services, which were previously in a relatively fragmented situation. There is no need to say more about the business on the grid side. Basically, if the equipment is bought by the grid company, there is no equipment dealer. The grid companies themselves are opening up the industrial links, which is the diversified and highly flexible grid of source, network, load and storage, as well as the connection of operation and d
Talking about the Digital Transformation in the Field of Power Equipment
06-28

Causes of errors in the vertical and horizontal installation of the cross arm

Causes of errors in the vertical and horizontal installation of the cross arm Mainly consider the vertical and horizontal installation errors of the cross arm: After the wire is assembled, the horizontal diagonal twisting error will add harmful external force to the cross arm, pole, and insulation layer; the influence of the sag error perpendicular to the span: each phase line of the span sags The difference between the degrees must be less than 50mm. When the vertical tilt error of the cross arm exceeds 25 mm, the difference between the lowest points of the wire will increase, the risk of sagging or even mixing will increase, and the sagging requirements cannot be met. The wrong request should be restricted. 　　The cross arm is usually installed at a distance of 300 mm from the top of the pole. A single cross arm must be installed on the receiving side to facilitate identification of the power supply side during maintenance or overhaul. The 90o angle pole, terminal pole and branch pole single-mode arm must be installed on the cable side, and the cross arm support iron must be installed on the side facing the power receiving side. on the left. In addition, the integrated installation process forms a regular process for future maintenance and inspection work, avoiding the omission of inspection items and making it easy to find defects.
Causes of errors in the vertical and horizontal installation of the cross arm
06-28

Power fittings, classification

Power fittings, classification 　　 1. According to the function and structure, it can be divided into suspension clamps, strain clamps, connection fittings, connection fittings, protection fittings, equipment clamps, T-type clamps, busbar fittings, pull wire fittings and other categories. 　　2. According to the product unit of power fittings, it is divided into malleable cast iron, forging, aluminum, copper and aluminum, and cast iron, with a total of four units. 　　3, can also be divided into national standard and non-standard
Power fittings, classification
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