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The principle, structure and operation and maintenance of transformer gas protection
Gas protection is the main protection for transformer internal faults. It can act sensitively to transformer inter-turn and inter-layer short circuits, iron core faults, internal bushing faults, internal winding disconnection, insulation deterioration and oil level drop. When a fault occurs inside the oil-immersed transformer, the arc will decompose the insulating material and generate a large amount of gas, which flows from the oil tank to the oil pillow, and its intensity varies with the severity of the fault, reflecting the air flow and oil flow The action protection is called gas protection, also called gas protection. During the operation of the transformer, due to internal faults, sometimes we cannot identify and take measures in time, which is easy to cause some accidents. After the protection of the gas relay, the occurrence of similar incidents can be avoided to a certain extent.
2022/10/05
Canwin First AI CTL Cut To Length Line for Electrical Transformer Production Robot Has Successfully Developed& Running
[Good News] Guangdong Canwin Intelligent Equipment Manufacturing Co., LTD., founded in 2002, won the 2020 China Science and Technology Progress Award and Guangdong Provincial Technology Invention Award for its key Technology and Equipment for Precision and Efficient Cutting of High-end Metal Plate and Belt. In addition, the push and pull material technology applied by Guangdong Canwin for cutting silicon steel sheet material below 0.18mm in 2014 has won the national invention patent [Patent Number: CN103990731A], which has become the standard configuration of thin plate shear transverse shear line in the electrical equipment industry. Recently, Guangdong Canwin launched another subversive product, double robot six-station automatic laminating horizontal cutting line. The product is the No.1unit in China, but also the No.1unit in the world. Its key technology is to grab five pieces at a time (double robot is equivalent to ten pieces at a time), can fold six transformer cores. [has applied for a number of patents] This technology ends up the history of the traditional transverse cutting line only cutting function without stacking function, and is the turning point for leading the technology take-off of the global electrical equipment industry!
2021/11/24
Multiple shear-stacking integrated iron core machining centers are being manufactured in small batches
Why was Edison alone and not a team of people who invented the electric light bulb?Why was Tesla the only one who discovered electricity and not a team?Why did Coulomb discover the effects of magnetic fields alone and not a team?Because only a very few people can endure loneliness and devote themselves to research without seeking for them, companies that truly have the ability to invent and create often have nothing to do with the company's business scale and the number of R&D personnel, but only with the obsession of team members and years of years. It's all about perseverance!It's harvest season again, good morning everyone!This is the CANWIN equipment manufacturing site. Multiple shear-stacking integrated iron core machining centers are being manufactured in small batches!To know more, Click https://www.canwindg.comEmail: info@canwinsg.com WhatsApp:+8613702282846 #spacertypehighspeedslittingline #transformercore #cuttolengthline #cuttolength #cuttolengthlinemachine #siliconsteelsheetcutting #cuttolengthlinemachinesupplier #drytypetransformermanufacturers #Distributiontransformer #oilimmersedtransformersupplier #cuttolengthlinemanufacturers #transformercore #SlittingLineManufacturer #canwin #automaticallystackedmachine #spacertypeslittingline #highspeedslittingline
2022/09/26
Intro to CANWIN Dry Type Transformers Canwin
CAWIN Automatic Equipment Manufacturing Co., Ltd. is a supplier of State Grid, China Southern Power Grid, and a professional manufacturer of high-end electrical equipment in China. The main business is electrical intelligent equipment manufacturing, power equipment production customization, high-end intelligent transformer production line series equipment, various dry-type transformers with high performance requirements, and electrical materials trade. The dry-type transformers produced by CANWIN have reasonable design and simple structure. It has the advantages of simple operation, high safety, high sensitivity, low loss, low noise, energy saving and environmental protection. Best-selling at home and abroad, well received.
2022/09/22
Transformer Core Intelligent Manufacturing Industry Chain Service New Model
At present, all countries in the world generally adopt the transformer core shearing distribution mode, which is also a relatively advanced industrial chain service mode that my country has been paying attention to and learning from. In recent years, with the development of my country's intelligent manufacturing technology, the progress of transformer core intelligent manufacturing technology and the outbreak of new coronary pneumonia have further promoted this progress.
2022/09/16
Do you know what are the common faults of transformers?
1. Winding failureThere are mainly inter-turn short circuit, winding grounding, phase-to-phase short circuit, wire breakage and joint welding. The reasons for these failures are as follows:① During manufacture or maintenance, local insulation is damaged, leaving defects;② Due to poor heat dissipation or long-term overload during operation, sundries fall into the windings, causing the temperature to be too high and the insulation to age;③ The manufacturing process is poor, the pressing is not tight, the mechanical strength cannot withstand short-circuit impact, and the winding is deformed and the insulation is damaged.
2022/09/15
Discussion on short-circuit current breaking capacity of low-voltage side circuit breakers of distribution transformers
The short-circuit current breaking capacity of the low-voltage side circuit breaker of the distribution transformer is too small; the influence of the thermal stability current of the cable is not verified in the low-voltage distribution system, which leads to the small cross-sectional area of some distribution circuit cables in the low-voltage distribution system.
2022/09/13
Power Transformer Basics
1. Classification and models of power transformers2. 1. Classification by use3. (1) Step-up transformer: used by the power plant to transmit electricity to the outside.4. (2) Step-down transformer: The substation of the power supply bureau is used for voltage conversion.5. (3) Distribution transformer: used to supply power to users.6. (4) Plant transformer: Provides internal electricity for the power plant.7. (5) Transformer for station: Provide internal electricity for the substation.8. (6) Converter transformer: for DC power transmission, one side is connected to AC power, and one side is connected to the converter valve.9. (7) Rectifier transformer: used in thermal power plants to supply power to electrostatic precipitators.
2022/05/10
Do you know what conditions are required for the parallel operation of transformers?
The parallel operation of transformers means that the primary windings of two or more transformers are connected in parallel on the busbar of the same voltage, and the secondary windings are connected in parallel on the busbar of another voltage.Its meaning is: when one transformer fails, other transformers running in parallel can still continue to operate to ensure the power consumption of important users; or when the transformer needs to be repaired, the standby transformer can be connected in parallel, and then the transformer to be repaired is powered off and repaired. , which can not only ensure the planned maintenance of the transformer, but also ensure that the power supply is not interrupted and improve the reliability of the power supply.
2022/09/02
About transformers, you have to master the knowledge points!
1. What is a transformer?In the AC circuit, the device that increases or decreases the voltage is called a transformer. The transformer can convert any value of voltage into the voltage value we need with the same frequency to meet the requirements of electric energy transmission, distribution and use.For example, the electricity from a power plant has a low voltage level, and the voltage must be increased before it can be transported to a distant power consumption area. The power consumption area must be reduced to a suitable voltage level to supply power equipment and daily electricity. Equipment.
2022/08/25
Transformers Classic 50 Questions
1. What are the main components of oil-immersed transformers?Answer: The main components of the transformer are: iron core, winding, fuel tank, oil pillow, respirator, explosion-proof pipe, radiator, insulating sleeve, tap changer, gas relay, thermometer, net oil, etc.
2022/08/18
Measures to improve the short-circuit resistance of power transformers
The power transformer is the hub of transmission and distribution of electric energy, and the core component of the power grid. Its reliable operation is not only related to the power quality of the majority of users, but also to the safety of the entire system. The reliability of a power transformer is determined by its health status, not only depends on the design and manufacture, structural materials, but also closely related to the overhaul and maintenance. The problem of improving the short-circuit resistance of transformers in power systems is discussed.
2022/07/19
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