special transformer

special transformer

Scott Transformer

  The transformer connected by Scott is usually composed of two single-phase transformers.Connecting the end of a transformer's high-voltage winding to the center of another high-voltage winding can form a three-phase high-voltage winding with a T-shaped structure.Each low-voltage winding is a simple single-phase winding with no electrical connection between them.Their voltage and current are the same as those of ordinary single-phase transformers.But the winding and current of each high-voltage group are different from those of ordinary single-phase transformers.  Every part and port of a transformer needs to be wired,and various wiring methods and techniques have an impact on the operation of the transformer itself.Once the transformer's wiring is connected incorrectly,it will affect the effectiveness of using the transformer and pose a safety hazard,resulting in unimaginable consequences.The fundamental safety of transformers and the operation of wiring must be approached with utmost caution,with correct and standardized operation being essential  Technical parameters:  Exterior structure:Vertical  Cooling method:natural cooling  Moisture proof method:open type  Number of windings:Double winding  Iron core structure:shell type  Cooling method:dry type  Iron core shape:EI type  Number of power phases:Three phase  Frequency characteristics:low frequency  Model:SDG-100/0.38  Application scope:Special

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Photovoltaic specialized transformer

  With the advancement of global energy structure transformation,renewable energy has gradually become a development focus in the energy sector.Photovoltaic power generation,as an important renewable energy source,plays an increasingly important role in the power system.In the photovoltaic power generation system,the step-up transformer is a crucial component,and its performance and reliability directly affect the stability and efficiency of the entire system.This article will provide a detailed explanation of the structure,characteristics,applications,and selection of photovoltaic step-up transformers.  Photovoltaic step-up transformer is a key equipment used in photovoltaic power generation systems to boost low voltage level electrical energy to high voltage level.Its structure is similar to that of a regular power transformer,consisting of iron core,winding,insulation material,and heat dissipation system.However,in the design and manufacturing process of photovoltaic step-up transformers,some special factors need to be considered,such as high temperature,high humidity,high altitude,high lightning strikes and other harsh environmental conditions,as well as lightning protection,overload protection and other functions.  Product features:  1.High reliability:Due to the fact that photovoltaic power generation systems are generally located in remote areas and operate in harsh environments,it is required that the step-up transformer has high reliability and durability,and can operate stably in extreme environments.  2.High efficiency:As an energy conversion device,the step-up transformer should have a high conversion efficiency to reduce energy loss and equipment heating.  3.Strong adaptability:The step-up transformer in the photovoltaic power generation system needs to adapt to different operating requirements and environmental conditions.For example,for power stations with different geographical locations and climatic conditions,step-up transformers should be able to be flexibly configured to meet different capacity requirements,voltage levels,and insulation levels.  4.Environmental protection and energy conservation:With the increasing awareness of environmental protection,the design of step-up transformers should also pay attention to environmental protection and energy conservation,such as using low loss materials,optimizing structural design,and other measures to reduce energy consumption and noise pollution.  Application of photovoltaic step-up transformers in photovoltaic power generation systems:  1.Centralized photovoltaic power generation system:In a centralized photovoltaic power generation system,due to the low power output of solar panels,multiple step-up transformers are required to boost the electrical energy to a high voltage level,and then transmit it to the power system through transmission lines.  2.Distributed photovoltaic power generation system:In a distributed photovoltaic power generation system,due to the placement of solar panels on the roof or ground of buildings,which are close to the load center,electrical energy can be directly sent to the low-voltage distribution system without the need for a step-up transformer.  3.Energy storage photovoltaic power generation system:In the energy storage photovoltaic power generation system,since the charging and discharging of the energy storage battery need to be completed in a short time,the electrical energy needs to be quickly boosted to a high voltage level through a step-up transformer to reduce the impact of charging and discharging currents on battery performance.  The selection of photovoltaic step-up transformers needs to consider the following factors:  1.Capacity:The capacity of the step-up transformer is determined based on factors such as the installed capacity of the photovoltaic power generation system,power demand,and power transmission distance.In general,the capacity of the step-up transformer should be slightly greater than the output power of the solar panel.  2.Voltage level:Select the voltage level of the step-up transformer according to the requirements of the output voltage level of the photovoltaic power generation system.In general,the voltage level of the step-up transformer should match the output voltage level of the solar panel.  3.Loss:When choosing a step-up transformer,attention should be paid to its energy efficiency indicators and loss situation.Choosing low loss and high-efficiency step-up transformers can reduce operating costs and improve system efficiency.  4.Protection level:As photovoltaic power generation systems are generally located in harsh environments,it is required that the step-up transformer has a high protection level to cope with harsh environmental conditions such as high temperature,high humidity,high altitude,and high lightning strikes.  In summary,as one of the key equipment in photovoltaic power generation systems,the performance and reliability of photovoltaic step-up transformers directly affect the stability and efficiency of the entire system.When selecting and applying photovoltaic step-up transformers,factors such as their structural characteristics,application scenarios,and selection requirements should be fully considered to ensure the normal operation of the system and maximize its benefits.Meanwhile,with the continuous advancement and development of technology,the performance and reliability of photovoltaic step-up transformers will be further improved and perfected,providing stronger support for the future development of renewable energy.

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High overload transformer

  A high overload transformer is a specially designed power equipment that primarily converts high voltage electrical energy into low voltage electrical energy to meet the needs of different power applications.It can provide higher current output and meet the requirements of high-power equipment.  High overload transformers have some unique characteristics in design and manufacturing compared to ordinary transformers.  1.High load capacity  Compared to ordinary transformers,high overload transformers have higher load capacity.In high-power equipment application scenarios,high overload transformers can withstand larger loads,provide stable current output,and ensure the normal operation of equipment  2.Stable voltage conversion  Through precise design and manufacturing,high overload transformers can maintain high stability during voltage conversion,provide accurate output voltage,and ensure that electrical equipment will not be damaged due to voltage fluctuations during operation.  3.Energy saving  High overload transformers adopt advanced magnetic circuit design and high-performance materials,which have high energy efficiency and can effectively reduce energy loss.Compared with traditional transformers,high overload transformers can provide more energy-saving and environmentally friendly power conversion solutions  4.Safe and reliable  As a reliable manufacturer of high overload transformers,Huawei strictly adheres to international standards and safety regulations to ensure product quality,safety,and reliability.The product has undergone rigorous testing and experimentation,and is capable of long-term stable operation under various environmental conditions  High overload transformers are essential equipment in modern power systems.They are not only a key link in energy conversion,but also provide stable current output and high-efficiency conversion solutions.

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Non encapsulated transformer

  The SG(B)series dry-type transformer adopts the NOMEX insulation system material from DuPont in the United States,with a temperature resistance level of H and higher fire resistance performance.The product has strong resistance to thermal shock,high overload capacity,flame retardancy,high fire resistance,and insensitivity to humidity and dust,which makes it widely adaptable and suitable for use in harsh environments with high fire protection requirements,large load fluctuations,and dirty and humid conditions  Product features:  1.Adopting NOMEX paper insulation system,it is flame retardant,explosion-proof,non polluting,and has a high fire rating.  2.Good heat dissipation effect,strong overload capacity,and can operate stably for a long time under 120%load.  3.Good insulation performance,high lightning resistance,and strong ability to withstand sudden short circuits.  4.Able to operate normally under harsh conditions(including climate and geographical environment).  5.After the end of its service life,it can be decomposed and recycled without polluting the environment  Technical standards:  a.GB/T10228-2008"Technical Parameters and Requirements for Dry type Power Transformers"  b.GB6450-1986"Dry type Power Transformers"  c.IEC 726"Dry type Power Transformers"(International Electrotechnical Commission standard)  d.GB1094.1-1996"Power Transformers"Part 1 General Provisions  e.GB1094 3-2003"Insulation level and insulation test of power transformers-Air gap for external insulation"  f.JB/T10088-1999"Sound Level of 6-220kV Transformer"  g.Guidelines for Load of Dry type Power Transformers(GB/T17211-1998)  h.GB4208-1993"Degrees of Protection for Enclosures(IP Code)"

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Electric furnace transformer

  The electric furnace transformer is a transformer that supplies power to the electric furnace,reducing the higher voltage to the working voltage required by the electric furnace.  There are many types of electric furnaces,so there are also many types of electric furnace transformers that are compatible with them.At present,our company produces electric furnace transformers,including arc furnace transformers for steelmaking electric furnaces(including on load and no-load voltage regulation and internal reactor type);All low loss and energy-saving products are used for smelting various ferroalloys,silicon compounds,calcium carbide and other mineral heat furnace transformers(single-phase,three-phase on load and no-load voltage regulation).The cooling methods include self cooling,strong oil water cooling,etc.Special designs can be made according to customer requirements.  Structural features:  The iron core of the electric furnace transformer is made of high-quality oriented silicon steel sheets,processed by fully automatic cutting lines,and manufactured using 45 degree fully inclined seams,non punched,and non woven glass adhesive tape binding technology.The coil adopts an international main longitudinal insulation structure,and the structure and insulation of the winding are reasonably selected to ensure that the winding has sufficient mechanical strength.It has the characteristics of strong ability to withstand short circuits,strong overload capacity,high efficiency,low loss,safety,and reliability.

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12 pulse dry-type transformer

  The purpose of pulse transformer  Pulse transformer is a special type of transformer mainly used for protection devices in power systems and catalyst triggering circuits in power equipment.  In the power system,the main function of transformers is to transmit electrical energy from one level of power lines to another.Pulse transformers are used to generate specific pulse signals to protect against faults in the power system.In protective devices,pulse transformers can generate specific pulse signals to control the operation of protective relays.Meanwhile,pulse transformers can also be used to detect grounding faults in power systems,ensuring the safe and stable operation of the power system.  In power equipment,pulse transformers are mainly used to control the switching of catalyst triggering circuits.Catalyst triggering circuit refers to the use of high-voltage pulses generated by gas discharge to trigger the discharge tube for conduction.Pulse transformers are used to generate high-voltage pulse signals required for triggering circuits,ensuring the normal operation of power equipment.  Working principle of pulse transformer  Pulse transformers can generate high voltage,short duration pulse signals,and their working principle is based on the characteristics of self inductance and mutual inductance.When a sudden pulse current passes through one side of the transformer,a brief high voltage signal is generated.This signal varies with the number and proportion of windings in the transformer.  When the pulse signal generated by one side of the transformer reaches the other side of the transformer,it will be converted into a pulse voltage signal.The amplitude,width,and rise and fall time of this pulse voltage signal are all related to the number and proportion of windings in the transformer.  In short,a pulse transformer is a special type of transformer that can generate high voltage,short duration pulse signals.It is mainly used for protection devices in power systems and catalyst triggering circuits in power equipment.Due to its efficient and reliable characteristics,pulse transformers are becoming increasingly widely used in the field of power.  Pulse transformer is a specially designed transformer mainly used for processing and generating pulse signals.Its function is as follows:  Generate specific pulse signals to perform specific functions.For example,in the power system,it is used to generate pulse signals for controlling and protecting relays in protective devices,or to detect ground faults to ensure the safe and stable operation of the power system.  Control the switch of the catalyst triggering circuit.In power equipment,pulse transformers are used to generate high-voltage pulse signals required for triggering circuits,ensuring the normal operation of power equipment.  Used in the fields of radar and exchange technology.In these applications,pulse transformers are used for signal transmission,voltage conversion,impedance matching,DC isolation,polarity conversion,etc.  Energy storage.When there is no output in the primary input current,the magnetic core converts the input current into magnetic storage,and when the input current is cut off,it releases the induced current output on the winding.  Voltage conversion and isolation.For example,in the high-voltage package of a cathode ray tube television,a significant increase in voltage is achieved through primary isolation.  In addition,pulse transformers are widely used in high-power pulse technology and accelerator research,playing a role in impedance matching and power regulation.

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