Basic Guide to Different Transformer Types

How much do you know about the types of transformers? Different types of transformers have different structural principles, which are mainly reflected in different types of connections, windings, electrical, oil, protection, and their application and so on. Next, let’s learn more about different types of transformers through the following articles.
Daelim is a professional transformer manufacture more than 15 years in China.Daelim aims to provide customers with the highest quality products and services. At the same time, this is our value and advantage. Every time we innovate our products, deliver to our customers, and communicate with our partners’ long-term customers, we demonstrate our unique strengths. Our products comply with CSA/ANSI/IEEE and other standards, and have a number of ISO certificates. To provide you with high-quality products and services.
Pad-mounted Transformer
Dry-type Transformer
Oil immersed transformer
Table of Content
What are the 5 applications of transformer?
1.Industrial and agricultural production
Power transformers are widely used in industrial and agricultural production. It is mainly used as a transformer used in power transmission and distribution systems. This type of transformer has formed a series and has been mass-produced. Transformers from 10kva to 630kva are generally called I, I type products, from 800kva to 6300kva is type II, from 8000kva to 63000kva is type III, and above 63000kva For Class IV, all kinds of transformers can be composed of various specifications of voltage combinations according to each voltage and temperature.
2.Industrial electricity and lighting electricity
According to different uses, it can be divided into step-up transformer and step-down transformer, among which the step-down transformer with low voltage of 400V is called distribution transformer. The highest voltage from the generator is 15.75KV, of which 6.3KV and 10.5KV are the most. It is impossible to transmit such a low voltage to areas hundreds of kilometers away. In order to transmit the electric energy from the power station, the voltage must be increased to 38.5KV through the transformer. 121KV, 242KV, and 363kV are sent out. After the high-voltage electricity reaches the power supply area, it has to go through a primary substation (voltage drop is 38.5KV or “35KV) and a secondary substation (voltage drop is 6.3KV or 10.5KV), and then the electricity is directly sent to The user area is stepped down through a nearby distribution transformer to supply power for factories and lighting.
Get the What is a 50 kva Distribution Transformer? now
3.Industrial refining
The metal materials and chemical raw materials used in industry are all refined with electric furnaces, and the power supply of electric furnaces is supplied by electric furnace transformers. The characteristics of electric furnace transformers are that the secondary voltage is very low (usually tens of V). To hundreds of V), but the current is very large, a maximum of tens of thousands of amperes, the voltage of our electric furnace transformer is 10KV or 35KV, and the individual is 110KV.
4.DC power supply
Smelters: many electrical equipment requires DC power supply, such as trams, electric locomotives, rolling mills in factories, smelters and electrolysis of chemical plants. Converting AC into DC requires a rectifier, and the power transformer used for the energy current is called a rectifier transformer. The difference between the rectifier transformer and the electric furnace transformer is that the secondary coil is connected into six or twelve phases to improve the rectification efficiency.
5.Mining
Mine transformers are specially used for underground power transformation in mines. They are called mine transformers. They are made of casings to prevent ore from breaking and a moisture-proof sealed structure. The other is a transformer that runs into the face of the tunnel. , known as explosion-proof transformer, this transformer is dry type, and the mechanical strength of the casing is high, so as to prevent gas explosion.
Read on 69KV MOBILE SUBSTATION WITH GIS
Different types of distribution transformer
he types of distribution transformers produced by Daelim usually include: three-phase pad-mounted transformers, single-phase pad-mounted transformers, cast resin transformers, single-phase pole-mounted transformers and skid-mounted substation transformers. The design and production of these types of transformers can meet international standards such as IEEE/ANSI, IEC, CSA, DOE, AS, etc. Therefore, if you need a quotation or technical data sheet for these types of transformers, you can contact the Daelim team.
Read my article on All Things You Need to Know About 75 kva Transformer
Different types of transformer connections
There are many types of connections for transformers. The latest representation of transformer winding connection groups is specified in the IEC standard. That is, three-phase transformer windings, when connected into star, triangle, and zigzag shapes, are respectively represented by Y, D, and Z for high-voltage windings; for medium and low-voltage windings, they are represented by lowercase letters y, d, and z, respectively. If it is a star-shaped or zigzag-shaped connection with a neutral point, it is represented by YN or ZN, yn or zn respectively. The transformers are combined in the order in which the high-voltage and low-voltage windings are connected to form the connection group of the windings.
Try for free information about the Some tips about 225 kva transformer
Common three connection groups and use occasions
1. The meaning of Dyn11: D: high-voltage side delta connection, y: low-voltage side star connection; n: low-voltage side neutral point lead; 11: high and low voltage phase difference 30 degrees.
Occasion: The single-phase unbalanced current exceeds 25% of the rated current, that is, there are many single-phase loads; the system has large harmonics and has a harmonic elimination effect;
2. The meaning of Yyn0: Y: high-voltage side star connection, no neutral point lead; y: low-voltage side star connection; n: neutral point lead; 0: high and low pressure difference 0 degrees.
Occasion: The three-phase load is basically balanced; the harmonics of the power supply system are not serious; it is often used in 10KV systems.
3. Yd1 meaning: Y: high-voltage side star connection; d: low-voltage side delta connection; 1: high and low voltage phase difference of 30 degrees.
Application: 35KV power distribution system.
Keep on reading The Ultimate Guide to 300 kVA Pad Mounted Transformer
Different types of transformer windings
1. Double-winding transformer: There are two windings, which can only convert the power supply voltage into one voltage level, or there are two voltage levels of AC voltage involved in the transformation and mutual connection, single-phase transformers and three-phase transformers have this kind of form.
2. Three-winding transformer: There are three windings, which can convert the power supply voltage into two voltage levels, or the AC voltage with three voltage levels participates in the transformation and mutual connection.
3. Self-coupling transformer: There is only one winding, which is used to connect power systems of different voltages, and can also be used as an ordinary step-up or step-down transformer.
4. Split transformer: a multi-winding power transformer in which each phase consists of a high-voltage winding and two or more low-voltage windings with the same voltage and capacity. There are two kinds of axial split and radial split, which are used for factory transformers and start-up transformers.
Let’s know learn more about the 500kVA transformer
What is a three phase transformer and feature?
When we use a transformer, if we want to input different voltages, we can use multiple different windings to adapt to different input voltages.
Moreover, the purpose of outputting different voltages can also be achieved by using multiple windings.
Three separate windings can be connected in different ways to allow the transformer to input three-phase alternating current, and the output is the same.
This is a three-phase transformer. Its structural feature is that the three-phase magnetic flux has its own separate magnetic circuit, which is not related to each other.
The characteristic of the three-phase core transformer is that the iron cores of three single-phase transformers are combined into one, and the three-phase magnetic circuits are related to each other. The main magnetic flux of any phase must have the other two-phase magnetic circuits as its own closed magnetic circuit. . When a three-phase symmetrical voltage is applied on one side, the three-phase main magnetic flux is symmetrical, and no magnetic flux passes through the middle iron core column, so the middle iron core column can be omitted. For the convenience of manufacture and cost reduction, the core legs can be placed on the same plane. Obtain the core structure of the three-phase core transformer.
You may interested in 1000 KVA Transformer Mini Substation Transformer Booming In NA Market
What is the transformer oil?
Transformer oil is a mineral based oil that is commonly used in transformers for its chemical properties and dielectric strength. This oil in your transformer acts as an insulator and a cooling agent. Over time, the oil will degrade resulting in the potential for faults and costly repairs.Therefore, transformer oil needs to be regularly filtered or even replaced.
Know more about 1000KVA PAD MOUNTED TRANSFORMER
What is the function of transformer oil ?
Tap changer of pad mounted transformer function is increase or decrease the output secondary voltage by changing the turn ratio of primary or secondary winding. This is installed in high voltage side.
Off – circuit tap changer and dual voltage selector switches, when specified, shall be externally operable lever – handle types, made of corrosion – resistant material. The means for operating the pad mounted transformer tap changer shall be installed in the cable entrance compartment. The highest voltage tap shall be tap position 1.
Try for free 1500 kva Pad Mounted Transformer – DAELIM BELEFIC
COOLING METHOD OF PAD MOUNTED TRANSFORMER
1. Insulation
Insulation materials are very strong in air and can improve air permeability.
2. Confrontation
Spreading oil is larger than heat, often spreading grease. Proximity to the iron and spread of grease makes the aid of the oil produced when the heat is spread. When the tarpaulin is heated, the effect of oil is produced, and the effect of convection oil, which scatters wavelengths through a wide-flowing flow, spreads widely.
3. Arc suppression function
On different switches and display panels, there are paints that the contacts can display. Since the adjustable oil paint is shown on this app, the tactile is well dispersed on the current effect, and the performance is shown, showing the various pressures, showing that with such arc performance, it is easy for us to achieve.
How often to change transformer oil and what to pay attention to?
Transformer oil is recommended to be replaced every 6 months.And we should be noticed in use:
1. When the transformer oil is not enough to be added, the new transformer oil that meets the new oil addition standard and has not been used should be preferred. At the same time, the same oil base, brand, and type of additive should be added. The characteristic index of the supplementary oil should not be lower than the characteristic index of the oil in the equipment. When the amount of new oil added is less than 5%, there is generally no problem, but if the amount of new oil added is relatively large, oil chromatography analysis and pressure test should be performed before adding oil to confirm that there is no oily sludge Precipitation, and when the acid value and dielectric loss coefficient are smaller than those in the equipment, oil supplementation can be carried out.
2. Under normal circumstances, oils with different oil bases cannot be mixed. Under special circumstances, if it is necessary to mix different grades of new oil products, it is necessary to judge whether the oil meets the local standard through the actually measured freezing point of the mixed oil, and finally carry out the mixed oil experiment. The results of the mixed oil sample test for the acute test should be no worse than the worst single oil sample. If the running oil is mixed with new or old oil of different grades. In addition to measuring the freezing point of the mixed oil in advance, aging tests and sludge tests should also be carried out to observe the sedimentation of sludge. It can be used only after there is no precipitation. The mixed oil sample should give better results than the original running oil. can be mixed.
Different of dry-type transformmer and oil-immersed transformer.
Many people on the dry transformer and oil-immersed transformer, easy to confuse, can not tell the difference between the two. Today violet electric gentleman answers the difference between the two in detail for you.
In terms of price, dry is more expensive than oil. Volumetric, large – volume oil changes more than dry oil.In the complex building (basement, floor, roof, etc.) and crowded places need to use dry transformer. Oil transformer is used in an independent substation. Box transformer is generally dry transformer. Outdoor temporary electricity generally adopts oil transformer. During construction, dry and oil transformer are selected according to the space. Oil transformer can be selected when the space is large, and dry transformer can be selected when the space is crowded.
Regional climate is humid and sultry areas, easy to use oil change. If dry transformer is used, it must be equipped with forced air cooling equipment.
1.Appearance
Packaging form is different, dry type transformer can directly see the core and coil, and oil-immersed transformer can only see the transformer shell.
2. Different lead forms
Different dry type transformers mostly use silicone rubber bushing, and oil-immersed transformers mostly use porcelain bushing.
3. Different capacity and voltage
Dry type transformer is generally applicable to power distribution, capacity under 1600kva, voltage under the 10Kv, also have individual do 35Kv voltage class, and the oil-immersed transformer is can be raised to achieve full capacity, voltage class did all voltage, 1000Kv test lines under construction in China, must be used oil transformer.
4.Insulation and heat dissipation are not the same
Dry type transformer is generally insulated with resin, by natural air cooling, large capacity by fan cooling, and oil transformer by insulating oil insulation, insulation oil in the transformer internal circulation generated by the coil to the transformer radiator for heat dissipation
As the name suggests, you receive totally free spins on an on-line
slot game.
Have a look at my site 온라인카지노
According to thee US Bureau of Labor Statistics, as of August 2022, 7,485,000 Americans have
a second job.
Stop by my site 여성알바
If you have additional technical abilities in copywriting or academic writing, you can establish a speciality region for your self.
Also visit my webpage 이지알바
Yoou can win thousands, possibly millions, of dollars at a genuine cash on-line casino.
Here is my site: read more
A lot of items have been pushing Leslie Gray Streeeter
out of Florida when she legt her job at Thhe Palm Beach Postt to move to Baltimoe final year.
Feel free to surf to my web page … site
With everyday betting at the track, horse racing is a well known soolution in the UK.
my web blog: 토토사이트
If you’re attempting to meet wagering needs, play these kinds
of games att the beginning.
Look at my bllg 온라인바카라
If you are seeking for UK bookie that are firing on all cylinders,
then you look no further than Spreadex.
Also visit my page; 안전토토사이트
When in doubt, always talk to your child’s healthcare skilled or your veterinarian.
Feel frwe to surf to my webpage – 경남 스웨디시
Join us at our hiring events to interview for open
Feel free to visit myy web blog; webpage
Betting is not a way to accumulate wealth, and gambling is noot the answer if you are in a tight monetary circumstance.
Here is my web blog :: cpa.city
Dordell left initial, did some investigation, and then received
a solicitation email about a franchising opportunity.
My webpage: website
Heavy gamblers have a tenbdency to blame themselves
when thhey can’t quit.
My web page; 메이저토토사이트
Just before you do, please read the facts on thijs page in addition to
the TSP booklet Loans (206kb).
Look at my site: 대환대출
Also, if you fail to spend according to thhe provided schedule,
you will have too sped extra charges and costs.
Feel free to visikt my web page: 대환대출
Roman ladies haad been permitted tto personal and inherit house and some
ran businesses.
Also visit mmy page … 밤알바
If you develop into unable to make your loan payments on time, interest could be added.
my blog: 무직자대출
If you have a bbad score, there’s no guarantee you will obtain approval.
Here is my website; 정부지원대출
The package, plus rising Tesla stock, catapulted him
tto becoming the world’s richest persaon three years later.
Stop by my web-site … 유흥알바
Andd data shows that financial gains in recent months have not been experienced evenly across groups by race and gender.
My page; webpage
Quite a few part-time employees are not ntitled to workplace benefits.
Feel free tto visit my page: 유흥업소 알바
As in any other foreign land, being able to speak the nearby laguage and adapt will go a extended waay in assisting you adapt.
Here is my homepage … webpage
Alternatively, the concentrate of your wireframe shoukd really be on stgructure and flow.
Also visit my web blog :: 유로밀리언
Korea’sMinistry of Employment and Labour (MOEL) eventually
signed agreements with 16 labour-sending countries.
My blog – 유흥알바
Thiss casio organization is created by Swedish game enthusiasts, ensuring players get what they want.
my website 바카라
Labour supervisors affiliated with it (who also act as judicial police officers) oversee compliance with employment laws.
My page 바 알바
His parents did not approve they thought hee ought to be studying alternatively.
my web blog; 주점 알바
In this e mail, click on the relevant hyperlink in order too verify your
account.
Feel free to visit my webpage: https://separesupere.com.br/forum/?qa=85586/%EC%B5%9C%EC%8B%A0-%EB%A9%94%EC%9D%B4%EC%A0%80%EB%86%80%EC%9D%B4%ED%84%B0-%EC%BF%A0%ED%8F%B0-%EC%B6%94%EC%B2%9C
Silk Thai Therapy was started on shared understanding and passion of classic Thai practices for therapeutic of the thoughts, physique, and spirit.
My web-site :: 스웨디시마사지
Just like Slovenia, Croatia uses a Student Sergice Centre designated
forr student employment in the nation.
Look into my web-site 유흥알바
International students that have graduated from Danidh universities can either apply for a operate
permit or an establishment card, whicfh is granted to those with a master’s or Ph.D.
degree.
Also visit my homepage … 유흥알바
Hoffman is a passionate spoprts writer with ten years of encounter in sports journalism.
Stop by my blog post … check here
In Europe, meanwhile, such policies have continued to expand and evolve in recent years.
My homepage: 미수다알바
So right here are some info on which visa you really should
get and how you can get them.
Feel free to visit my webpage ::셔츠룸알바
The self-employed and numerous joob holders are the groups most likely to ound alarm
bells about low levels of pension participation and saving.
My web site … 여성알바
They have a passion for teaching their clients, helping them boost their body awareness.
My website – 마사지
Part-time workers are eligible in the second month soon after they have clocked at least 450 hours.
my webpage – 여성알바
Please, turn off your AdBlock or whitelist our web page to
be able to check out all listed casinos.
Look into my weeb site: webpage
We’re looking for communty members to assist offer feedback so we can strengthen.
My page :: 여자밤알바
You may possibly even get funds deposited in your
bank account the same day you apply.
Feel free to surf to my web page: 소액대출나라
He ordered me to sit with my legs open, showed me hhis pc desktop background of a naked
girl and mentioned, ‘I want to sleep with her.
Here is my site: 유흥알바
Verify with your lender to make sute your plans match the
lender’s private loan possibilities.
My wweb page; 정부지원대출
This is a high RTP slot bby Realtime Gaming with a
colorful theme andd 25 paylines.
my web site; web site
Crypto enthusiastys can take benefit of a generous crypto bonus, which is an desirable feature oof this casino.
Also visit my web blog; 온라인카지노
Catch up on CNBC Select’s in-depth coverage of credit cards, banking and money, and follow us on TikTok, Facebook, Instagram and Twitter to stay up to date.
Look at my web-site 소액 대출
You start off with a $400 match, then your second and third deposit bonuses give
yyet another $300 every.
Have a look at my web-site :: fxhub.co.kr
Magic Red oes nott provide a downloadable mobile app, but its site is fully compatible with all
handset devices.
My site: 온라인카지노
When transferring from your computer, the recipient hass 24 hours to claim the tickets aand accept the forward invitation.
Also vissit my web page; 파워볼분석
Collectively, our potentiwl to serve and care for the neighborhood grows.
Feel free to visit my page: 미수다
Copy the address to your clipboard, and then head over to your
external Bitcoin wallets.
My web page; 클레이파워볼
He aims to shbift the concentrate of South Korea’s economy towards
the private secttor to produce mufh more jobs and strengthen tthe
middle class.
myblog post :: site
These applications come with exclusive perks, such as larger deposit and withdrawal limits,
cashback, and devoted account managers.
Also visit my page … 카지노사이트
There aare a variety of lenders in the industry, and you would definitely get a lender willing to dance
to your tune.
my site – 모바일 대출
The spins ddo not have a wagering requirement, and can only be employed on Large Bass Bonanza, within 7 days.
Feel free to visit my web site site
To claim this reward, basically coplete your first deposit
working with cryptocurrency.
Also visit my web page; 파워볼분석
In spite of the loss, they made NFL big in Georgia, which is why we anticipate a lot of interest
in this region.
Also visit my blog post … 토토사이트
Reside Chatt is only offered on the Southwest mobile app
on iOS and Android devices (app version 6.1.
or 6.1+).
Feel free to surf to mmy website; 엔트리파워볼
Although a few e-wallets are noticeably missing from this list, they continue to cover the fundamentals.
Here is my blog; 카지노게임
Buut would it not be bstter for the economy to have additional women operating?
My site: webpage
If the F-1 stuxent needs to continue working off-campus, the student have to re-apply.
My blog – 밤일 알바
Generally I don’t read post on blogs, however I wish to say that this
write-up very compelled me to try and do so! Your writing taste has been amazed me.
Thanks, very great post.