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Advantages, Disadvantages and Differences Between Dry-Type Transformers and Oil-Immersed Transformers

The technology of live cleaning and maintenance of electric power and electrical equipment is generally a technology for cleaning power and electrical equipment that does not have power outages or has periodic power outages. Cleaning is carried out by professional cleaning personnel using professional tools and cleaning agents in accordance with regulations, in a safe environment. Basically, it effectively removes pollutants on the surface and deep layers of the equipment, reduces equipment failures caused by pollutants, improves the operating efficiency of the equipment, restores them to their best working condition, and extends the service life of the equipment to achieve safety. .






Basic principles of electrified cleaning and maintenance:


During the long-term continuous operation of power and electrical equipment, due to various dust, metal salts, oil and other comprehensive pollutants floating in the atmosphere, through physical adsorption, the gravity sedimentation of particles is deposited on the surface of power and electrical equipment. Causes serious pollution of the equipment, reduces the heat dissipation capacity of the equipment, and affects its operation quality and reliability. These pollutants also form an additional "microcircuit effect" on the circuits in the equipment, leading to "slow corrosion", which can cause poor contact in power and electrical equipment to varying degrees, reduced impedance, leakage, short circuits, bit errors, bad boards, etc. The soft failure rate increases such as line energy loss, transmission signal weakening, and instability of transmission rate and quality.


The raw materials of the charged cleaning agent are determined according to the nature of the pollutants, because the pollutants are divided into: polar water-soluble residues, non-polar water-soluble residues, and non-polar non-water-soluble residues. Using polar and non-polar solvents, it can dissolve all kinds of polar water-soluble, non-polar water-soluble, non-polar and non-water-soluble pollutants well, so that the cleaning effect can be achieved satisfactorily. When the equipment is contaminated and unable to operate normally and cannot have a power outage, safe electrified cleaning can eliminate or weaken static electricity, improve insulation performance, remove harmful substances, effectively improve the contact effect of electrical contacts, avoid failures, and keep the equipment in optimal condition. operating status and extend the service life of the equipment.




The purpose of live cleaning and maintenance:


The equipment listed above has been exposed to a highly polluted atmospheric environment for a long time, and the equipment in operation has been corroded by harmful pollutants in the environment for a long time, which greatly reduces the reliability of the safe operation of the equipment. As a result, equipment failures in operation often occur, and these equipment failures caused by pollution sometimes cause huge casualties and economic losses. The key is that some important equipment that is running cannot be powered off for maintenance. Even if the power can be cut off for maintenance of the equipment, it will bring great economic losses to the enterprise.


This requires a safe and reliable technical means to solve the problem of equipment failure caused by environmental pollution but the power cannot be cut off for cleaning, insulation and maintenance of the equipment. The live cleaning, insulation lubrication and maintenance technology system (firstly, mechanical cleaning brushes are used to clean the primary equipment, secondly, electrical and mechanical equipment cleaning agents are used to clean the cleaned primary equipment and secondary equipment with high-pressure jets, and precision electronic instrument cleaning agents are used to monitor The system is charged for cleaning, and finally the cleaned primary and secondary equipment are protected by leakage protection fluid for insulation maintenance.) This technical system can comprehensively solve the problem of equipment insulation degradation caused by environmental pollution.




The significance of live cleaning and maintenance:


1. The effect of cleaning and insulation maintenance of high-voltage transmission equipment:


A. Improve leakage current and improve safety performance.


B. Improve the anti-pollution flashover capability of transmission and transformation equipment by seven times.


C. Remove more than 70% of surface conductive ions.


2. The effect of live cleaning and insulation maintenance of secondary equipment and high and low voltage distribution equipment:


A. Clean surface contaminants thoroughly.


B. Improve the insulation performance of electrical appliances.


C. Improve the insulation value of the busbar insulation pillar.


D. Reduce the probability of arc occurrence.


E. Improve electrical contact performance.


3. Effects of live cleaning and maintenance of control system equipment:


A. Improve the reliability of the equipment operating environment.


B. Eliminate static electricity and harmful substances in equipment.


Benefits of live cleaning and maintenance services:


· Avoid power outages and production shutdowns


① Maintenance can be carried out when network communication, power, electrical and traffic controllers and other equipment are operating normally.


②Avoid economic losses caused by power outages


③Avoid equipment damage caused by traditional maintenance methods


· Ensure safe production


①The incidence of fires and explosions due to high temperature aging of equipment is reduced by 30%


②The equipment failure rate caused by static electricity and dust is reduced by more than 70%


· Cleaning up pollution, saving energy and reducing consumption


Saving energy consumption averages about 20%


· Improve operational efficiency


Remove pollution and prevent changes in resistance, voltage, and current caused by pollution such as dust and static electricity, thereby restoring the optimal operating status and efficiency of the equipment.


· Extend equipment life


Equipment service life is extended by more than 20% on average


XZTJB-I 3 Phase Relay Protection Tester


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