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Characteristics of circuit breakers
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Common protection of transmission and distribution lines
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Development direction of China's power grid in the next 10 years
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Working principle of vacuum circuit breaker
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Introduction of transformer cooling system
The cooling system of power transformer consists of two parts: internal cooling system, which ensures that the heat of winding and iron core diffuses into the surrounding medium; and the external cooling system ensures that the heat in the medium disperses outside the transformer. According to the size of transformer capacity, medium and cycle type, the transformer adopts different cooling methods.
넶3 2020-09-25
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Principle and function of Earthing switch
Grounding switch, a kind of isolating switch, is mainly used in the work of circuit grounding part. It does not need to carry the current under normal circuit, but needs to carry the current under abnormal conditions for a certain period of time, such as short circuit circuit circuit. This paper introduces the working principle of grounding switch in detail.
넶2 2020-11-10 -
What is the harm of replacing copper with aluminum in transformer?
After investigating a number of power accidents, it is found that the problem of "replacing copper with aluminum" in distribution transformers has not been banned. After production, it is difficult to identify the appearance and terminal blocks of the finished products, and it is difficult to find the test items specified in the existing standards. At the same time, the core hanging disassembly inspection is a destructive method, which is difficult and uneconomical.
넶1 2020-10-31 -
Causes and technical treatment of transformer common faults
If the transformer fault occurs in the process of operation, it will directly affect the normal operation of the power supply system, and will also cause huge losses to enterprises and people's lives. Summary of relevant treatment methods, timely and effective troubleshooting, reduce the potential safety hazard of transformer, contribute to better maintenance of transformer safety.
넶0 2020-10-27 -
Technical composition and development trend of intelligent transformer
Smart grid is an important part of low-carbon economy, which can indirectly reduce carbon emissions by improving power efficiency. It is an inevitable trend to introduce power monitoring technology, power electronic technology, power communication technology, new materials and new technology, and the integration of "primary" and "secondary" in transformer design and production, and promote the continuous improvement of transformer intelligence
넶0 2020-10-15 -
Analysis of substation operation technology in Power Engineering
Substation operation technology is the core of power engineering. Strengthening the management of substation operation technology is conducive to improving the construction quality of power engineering. This paper analyzes the application of substation operation technology in power engineering.
넶1 2020-09-30
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Parameter analysis of air switch
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Detailed explanation:10 kv ring main unit
Ring network cabinet is a set of high-voltage switchgear installed in the steel plate metal cabinet or made into the electrical equipment of assembling the interval ring network power supply unit. The core part of the cabinet is load switch and fuse, which has the advantages of simple structure, small volume, low price, improving power supply parameters and performance, and power supply safety, etc.
넶8 2020-05-18 -
insight into power supply and distribution technology
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Research on distribution automation system
With the rapid development of technology, distribution network automation technology is also constantly developing. Distribution automation projects have made new breakthroughs in technical routes, project management, project implementation, equipment level, operation and maintenance management, etc.
넶6 2020-05-09 -
Analysis of power distribution automation system
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