Why called "oil immersed"transfomer

Oil immersed transformer is insulated with oil as the ground end of the shell, and is the liquid insulation medium of the transformer. Insulating oil is one of the insulation, and the second is heat dissipation.
The main support, iron core and winding inside the oil immersed transformer are immersed in insulating oil. Therefore, it is called "oil immersed".

Farady oil immersed power transformer details

Farady oil immersed power transformer,based on know-how accumulated over decade years in oil immersed distribution transformer field, Farady oil-immersed transformers have been supplied to various industries including semiconductor, steel work, and petrochemical.

Farady Oil-immersed transformers have several independent oil systems

Farady Oil-immersed transformers have several independent oil systems isolated from each other. In the operation of oil-immersed transformers, the oil in these independent oil systems are independent of each other, and the oil quality and operating conditions are not the same. Oil gas chromatographic analysis should be separately performed to determine whether there is a potential failure.

features of oil immersed distribution transformer

◇ high-voltage winding all multi-layer cylindrical structure, to improve the impact of the winding distribution.

◇ low-voltage winding with a cylindrical or spiral structure, high mechanical strength, ampoule distribution balance, the product of anti-short circuit capability.

◇ body attached to the positioning structure, so that in the transport process does not produce displacement, while all fasteners installed fastening nuts to ensure that the product in the long-term operation of the fasteners are not loose to meet the requirements of the hanging core.

◇ oil immersed distribution transformer uses corrugated fuel tank, cancel the oil conservator, the lid and the box along the complete welding or bolted fastening, extending the life of the transformer oil.

◇ product surface by the oil, rust, phosphating treatment after spraying primer, finish, to meet the metallurgical, petrochemical systems and humid areas of the special requirements.

◇ selected components, using a fully sealed transformer fuel tank, according to the standard requirements of the installation of a pressure relief valve, signal thermometer, gas relay, to ensure the safe operation of the transformer.

◇ The series of products beautiful appearance, small size, can reduce the installation area, is the ideal maintenance-free quality products.

a great oil immersed transformer

100kva oil transformer core using high-quality silicon steel, multi-level ladder stacked. With low loss, low noise, anti-short circuit capability and so on.oil immersed transformer has been widely used in substations, power plants, by the user's praise.

1, bell-type fuel tank, box wall with corrugated structure, enhanced the mechanical strength of the tank, beautiful appearance;

2, unique core structure, the use of D-type iron yoke, 45 degrees oblique seams;

3, the core and the tank all-round positioning, can guarantee the impact of transport;

4, winding design is reasonable. The coil adopts the inner and outer strands structure, between the coils, between the coil and the core using high-strength hard paper tube to enhance the ability of the coil against short-circuit impact;

5, the process of cold welding technology, the coil group package technology, hard paper tube processing, and so on a number of advanced technology.

oil immersed distribution transformer with an advanced structure

1.The core in oil immersed distribution transformer adopts imported high permeability, low loss and cold rolled high quality silicon steel sheet, which reduces the load loss and energy saving

2.The oil type transformer are high safety and reliability.

3.Advanced structure, small volume, light weight, low noise, low temperature rise and corrosion protection.

4.Reliable leakage prevention measures to prevent leakage of oil.

the advantages of oil immersed transformer

Farady oil immersed transformer with low loss, low noise, high efficiency advantages, can achieve good energy efficiency and reduce pollution. The oil type transformer eliminates the oil conservator compared to the ordinary oil-immersed transformer. The change of the oil volume is automatically compensated by the elasticity of the corrugated plate of the corrugated fuel tank. The transformer is isolated from the air to prevent and reduce the deterioration of the oil and the aging of the insulation , To enhance operational reliability, normal maintenance and maintenance.

oil immersed transformer in a wide array of applications

oil immersed transformer are use in a wide array of applications, and are usually oil immersed transformer. Because of safety reason and the flammability of the oil in the oil type transformer, they are mostly used for outside applications. One of the safety features in an oil immersed power transformers is a sensor to tell if gas is accumulating inside the transformer, which is a sign of an electric arc in the winding. This prevents catastrophic burnout. Below are a list of a few areas where oil filled transformer are used.

oil immersed distribution transformer to various industries

oil immersed power transformer,based on know-how accumulated over decade years in oil immersed distribution transformer field, Farady’s oil-immersed transformers have been supplied to various industries including semiconductor, steel work, and petrochemical. Further, as an outstanding and comprehensive oil immersed distribution transformer solution provider, we respond to the oil immersed power transformer demanding requirements of our customers by developing and manufacturing both eco-friendly pole mounted distribution transformer and high-efficiency oil immersed power transformer.Both oil immersed distribution transformer and pole mounted distribution transformer are designed for power centres,substations and network, also for pad mounted oil immersed power transformer, used in public distribution system, commercial building and industrial complexes

What are the Advantages of an Oil Immersed Transformer?

An oil immersed transformer is often found in a large range of commercial situations and also by regional power and utility concerns as they provide electricity to us at home (or at work too). Generally they are built to be placed outside and normally contain a very high voltage output. The advantage of the lubricant inside the unit is that it when in use it acts as an insulator and a coolant allowing the system to work more effectively. The lubricant works its way around and effectively works to reduce the overall temperature (which can get very high) and therefore increases the performance of the parts and results in a better overall implementation of the system. They can also handle an overload of thirty per cent with no problems, they are usually very reliable and can handle many years of operations without creating faults and at a reasonable low cost. As well as producing energy, the oil immersed transformer consumes energy as well. Ideally it would consume as low a level of energy as possible in order to be as efficient as possible. Generally this is done at the design phase as losses can be diminished as a result of the creativity of the engineer at this point. The performance features also play a part in this area of operations. These areas also have an effect on the overload status and the general features of this type of unit make it the most lenient and effective type available on the market. It is because of this efficiency that compared to a few types of non-lubricated units they can genuinely pay for themselves over a long period because of the far lower rate of energy losses. The cost of the energy losses compared to dry units creates a huge saving, but also usually they work out cheaper in their up-front costs as well. An oil immersed transformer can operate with higher power ratings and higher voltage applications than a cast resin market version of the same unit. Traditionally a high quality mineral-oil is used for outdoor units that have to stand up to the weather. Mineral-oil is very flammable and so cannot be used with indoor units. Overall, the oil type transformer is the best solution for any situation that requires high voltage as well being installed outside. The lubricant allows the unit to run at far higher tolerances as well as much more reliably and far more cost effective. If you want a unit with a lower up front cost, lower running costs, have the space to install it outside and also lower maintenance costs as well, then this is clearly the unit for you.

Produce different series of oil immersed distribution transformer

We produce three phase oil immersed distribution transformer with rated power in range from 25 kVA up to 25,000 kVA. Our oil type transformer are both types, hermetically sealed and with conservator. They are manufactured in accordance with local and international standards and fully adapted for mounting in complete transformer substations and steel-lattice poles. The windings can be made from aluminium or copper depending on customer requirements and needs. We produce oil-immersed transformers with different series of losses according to EN 50464-1 but also special transformers for dedicated services with customized losses and design.

An outstanding and comprehensive oil immersed transformer

oil immersed transformer, provides oil-immersed transformer to the semiconductor, steel and petrochemical industries. In addition, as a good, comprehensive solution provider for oil-immersed distribution transformer, we through the development and manufacture of environment-friendly bipolar distribution transformer and efficient oil immersed power transformer to cope with the oil-immersed power transformer demanding requirements. Immersion type distribution transformer used in power distribution transformer design center, and the pole transformer substation and the network, also applies to the public distribution system, commercial buildings and industrial complex mat type oil-immersed power transformer.

Oil Immersed Distribution Transformer For European

The oil immersed distribution transformer are built in accordance with IEC 60076 standards.For European market ,the calculation is made according to Ecodesign regulation, norms EN 50588-1.The distribution transformer core is built up of cold rolled oriented grain steel sheet with low specific losses, insulated on both sides by a thin inorganic coating. The single sheets composing the core are cut at 45°. Uniform pressing, stiffness and solidity of the columns assure a low noise level. the transformers are filled with mineral oil, according to IEC standards. The oil is previously treated and dried. Upon demand, filling can be made by using insulating silicon oil or vegetable and biodegradable.

A very reliable oil immersed transformer

Farady oil immersed transformer is very reliable and high quality is well received by effective function. These transformers contain oil to prevent overheating and maintain long-term durability. We provide these farady transformer with a rating of up to 10,000 KVA and a voltage of up to 33 KV. These are made of high quality raw materials purchased by reliable suppliers and offer various sizes and grades.

Different series of oil immersed distribution transformer

We produce three phase oil immersed distribution transformer with rated power in range from 25 kVA up to 25,000 kVA. Our transformers are both types, hermetically sealed and with conservator. The three phase pad mounted transformer are manufactured in accordance with local and international standards and fully adapted for mounting in complete transformer substations and steel-lattice poles. The windings can be made from aluminium or copper depending on customer requirements and needs. We produce oil-immersed transformers with different series of losses according to EN 50464-1 but also special transformers for dedicated services with customized losses and design.

Low Power Oil Immersed Transformers

Farady offers a wide range of low power oil immersed transformer such as generator duty, unit auxiliary transformers and multi winding transformers. All these step up transformers are customized for industrial plants and distribution substations. Our transformers are extremely versatile with robust construction and highest quality standards.

Oil immersed transformers - for very high power (MVA) and voltage

For very high power (MVA) and voltage, we provide oil immersed transformer. This solution guarantees the best possible resistance to dielectric stresses and, by using special heat exchangers, the elimination of losses, which allows the machine to cool. This type of oil type transformer is particularly suitable for energy distribution networks or installations subject to severe weather or environmental conditions. In view of the specificity of the applications, each product is customized to determine the characteristics that can beat satisfy the customer’s needs.

oil immersed distribution transformer for delivering excellent performance

oil immersed distribution transformer are known for delivering excellent performance. The expert R&D team develops one of the most advanced designs to withstand short-circuit and impulse voltage tests.

• Able to withstand Short Circuit & Impulse Voltage tests as per IS/IEC

• Powder Coating for excellent finish

• Available as CSP (Completely Self Protected) Type

• Designed to meet customized specifications

• Available as Corrugated Hermetically Sealed Type which is compact in size

• Various ratings type tested from NABL accredited labs

oil immersed transformer with better-quality technologies

The expert team in our firm allows us to manufacture and supply leading products of oil immersed transformer.We are backed up with better-quality technologies and advanced machineries to manufacture these products. The remarkable features of these products are strong short-circuit withstand ability, low partial discharge, good aesthetics. This oil type transformer is efficiently used in all substations and also at wind mills in ample range.

A winding temperature control function has immersed distribution transformers

A winding temperature control function has oil immersed distribution transformer, which is external casing, housing in the lumen of the transformer windings, characterized in that: the housing The top surface of the fixed outlet box has a wiring board, with a temperature sensor of the pole mounted transformer windings; wiring board terminal box comprises a case, the sealing plate Seal connected to the case top opening, opened outlet hole on the side panel case, open wire alignment hole on the bottom plate cassette; temperature sensor control line longitude positioning holes , outlet hole is connected to an external computer.

Farady oil immersed transformer Hanging Point Step

Before the oil immersed transformer hanging core work preparation:

⑴ tool material preparation: such as storage tank, oil filter, complete sets of wrenches, Dao Ben, oil-resistant rubber rope, white cloth, insulation cardboard.

⑵ equipment for the preparation of lifting: such as cranes, chain, lever hoist, tripod, wire rope, etc., if the chain, must be based on the height of the farady transformer and the weight of the hanger.

⑶ transformer oil treatment, take oil samples and test, do a good job in oil preparation, including oil filter paper.

⑷ do the preparation of oil pan, hand-core line.

The height of the hanger (h) shall not obstruct the lifting of the body.

So h = h1 + h2 + h3 + h4 + h5 test = h1 tank height h2 height of the device h3 rope height h4 pulley (or chain) minimum distance h5 standby height (300 ~ 500mm)

1. hanging beam

Pulley

3. Rope sets

4. body

5. Fuel tank

Dropping steps:

⑴ selected hanging core position, put the oil (placed under the broader market)

⑵ remove the explosion-proof tube, oil pillow, gas relay

⑶ remove the big cover bolts

⑷ use the balance iron will be hanging on the iron plate

⑸ check:

① core insulation

② core insulation

③ wear the core bolt insulation

④ tap switch contact insulation

⑤ high and low voltage lead

⑥ tank debris

⑦ heat pipe with or without clogging

⑧ telemetry insulation resistance

⑨ measure the DC resistance

⑹ all items after the inspection did not find the problem should be promptly loaded back, the iron back in the tank

⑺ strong cover bolts

⑻ install the removed accessories

⑼ into the qualified oil

⑽ static 6-10 hours after a full set of pressure test ⑾ site installation.

An oil immersed distribution transformer with a winding temperature control function

An oil immersed distribution transformer with a winding temperature control function. A box is arranged outside the oil-immersed distribution transformer; a transformer winding is arranged in an inner cavity of the box; the top of the box is fixedly provided with a wiring board outlet box; the transformer winding is provided with a temperature control sensor; the wiring board outlet box comprises a box body; a sealing plate is in sealed connection with the top opening of the box body; side plates of the box body are provided with outlet holes; a bottom plate of the box body is provided with wire holes; control wires of the temperature control sensor penetrate through the wire holes and the outlet holes and are connected with an outside computer. The temperature change of the winding inside the oil type transformer can be monitored, the safety and reliability in the using process are improved, and the fault rate is effectively reduced.

Features of oil immersed transformer

1.The core of imported high permeability, low loss, cold-rolled high-quality silicon steel sheet manufacturing, reducing the no-load loss, energy saving significantly. To the nineties the international advanced level.

2.Farady oil immersed transformer with high security and reliability.

3.The oil type transformer with a advanced structure, small size, light weight, low noise, low temperature, anti-corrosion.

4. reliable anti-leakage measures to prevent leakage of oil phenomenon.

The structure of oil immersed distribution transformer

The oil immersed distribution transformer core is built up of cold rolled oriented grain steel sheet with low specific losses, insulated on both sides by a thin inorganic coating. Uniform pressing, stiffness and solidity of the columns assure a low noise level. the polemounted transformers are filled with mineral oil, according to IEC standards. The oil is previously treated and dried. Upon demand, filling can be made by using insulating silicon oil or vegetable and biodegradable.

Farady oil immersed transformer for industrial

Distribution transformer(oil immersed transformer) for industrial and mining enterprises and civil building one of the important equipment in power supply and distribution system, it will be 10 (6) kV or 35 kV voltage drop to network users use 230/400 v bus voltage. Such products applied to ac 50 Hz (60), maximum rated capacity of 2500 kva three-phase (single phase maximum rated capacity of 833 kva, single phase transformer is generally not recommended), can be used in indoor (outside), when capacity of 315 kva and below can be installed on the pole, environment temperature is not higher than 40 ℃, no less than 25 ℃, the highest daily average temperature 30 ℃, the highest annual average temperature is 20 ℃, relative humidity less than 90% (environment temperature 25 ℃), the altitude does not exceed 1000 m. If the above conditions are not in conformity with the above conditions, the relevant provisions of gb650-86 shall be adjusted accordingly.

Oil immersed distribution transformer installation site selection

installation: oil immersed distribution transformer can be installed one way of hanging rod, pole selection of 12 m or 15 m heavy cement rod cement pole. 

installation site selection: After investigation, we found that single-phase distribution transformer installation site less restricted by geographical factors, the nature of the load factors and more. In general: 

When the 11kv single phase transformer power supply radius is too large, causing the end of the supply voltage is low, affecting the normal use of electricity users, in single-phase power supply end of the installation of distribution transformers, cutting low voltage network, reducing the radius of low-voltage power supply, solve the problem of low voltage users.When the three-phase distribution transformer overload, according to the load characteristics, select the appropriate extensions installed single-phase distribution transformers, cutting transfer of load, solve the problem compatibilization 

in the residential area where non-user installation of three-phase power distribution transformers single-phase power supply to the residents, can shorten the radius of low-voltage power supply, reduce loss in load density, widely distributed, without the user’s place of three-phase power distribution transformers installed single-phase power supply, saving investment, power point to solve the problem. 

Performance of oil immersed transformer

A, oil immersed transformer low-voltage winding in addition to small capacity using copper wire, the general use of copper foil around the cylindrical structure; high-voltage winding using multi-layer cylindrical structure, so that the winding ampoule distribution balance, magnetic flux leakage Small, high mechanical strength, anti-short circuit capability.

B, core and winding each with a tightening measures, the device body height, low voltage lead and other fastening parts are self-locking lock nut, using a non-hanging structure, can withstand the transport of the shock.

C, coil and core using vacuum drying, farady transformer oil using vacuum oil and oiling process, so that the transformer internal moisture to a minimum.

D, fuel tank with corrugated sheet, it has a breathing function to compensate for changes in temperature caused by changes in the volume of oil, so the product is no oil conservator, obviously reduced the height of the transformer.

E, because the corrugated plate replaced the oil conservator, so that the transformer oil and the outside isolation, so as to effectively prevent the oxygen, water into the lead to the decline in insulation performance.

F, according to the above five performance to ensure that the oil-immersed transformer in the normal operation does not need to change the oil, greatly reducing the maintenance costs of the transformer, while extending the life of the transformer.

Summed up a oil immersed distribution transformer

oil immersed distribution transformer body is small and light, can be pole-mount, easy installation, while reducing the cost of materials Taiwan area, you can further maximize the load center, reducing the radius of low-voltage power supply network, reduce losses. According to single phase transformer installation requirements, we combine practical Suqian grid, summed up a single-phase distribution transformers installed in a typical configuration: single-phase distribution transformers, low voltage switch, reactive compensation devices, power distribution load monitoring systems and other equipment. 

Acording windings to distinguish oil immersed transformer

oil immersed transformer can be divided into double-winding transformer and three winding transformer. The usual transformers are dual-winding transformers, that is, there are two windings on the core, one for the original winding, one for the secondary winding. Three-winding transformers are larger capacity transformers (above 5600 kVA) to connect three different voltage lines. In special cases, there are also Satons transformers that use more windings.

For oil immersed distribution transformer

Nowadays, it’s difficult for any industry or manufacturing unit to get uninterrupted power supply. Get the service of potent device that is capable enough to run most of the machines without power interruptions. With presence all across the globe we are able to cater services in majority parts of the world. oil immersed distribution transformer are designed in a way to provide protection in times of voltage surges.Power interruptions caused by faulty wirings or bad weather can be solved by efficient power gadgets. auto voltage stabilizer are designed to provide constant electric current to any electronic machine. Highly potent devices are designed to meet power fluctuations which can cause serious damage to your computers and electronic devices and in turn will hamper productivity of your organization at a large scale.

Product Description about oil immersed transformer

Farady oil immersed transformer has a seires of big changes in material, technical and construction with the characters of small size, light weight, high efficiency with low loss and low noise, stable opable operation which cutting down large number of loss from energy GRID and minising operation charge, improving the industrial economic benefit.The 100kva power transformer is used in power plant, transformer substation, big-sized and chemistry factory and etc.

Introduction to oil immersed distribution transformer

The performence of full-sealed oil immersed distribution transformer confrom to standards IEC60076 power transformer and IEC60076 technical parameters and requirments of three phase pad mounted transformer.its core is made of quality cold-rolled silicon sheet and is of a full-miter non-puncture structure and its coil is made of quality oxygen free cooper.it is artistic in apperearance and safe in running and is widely used in transmission and distribution of industrial and agricultural networks.

Oil immersed transformer in different structure forms

We produces the oil immersed transformer main structure forms has the Direct Weld-able type 3 phase step up transformer (PG, does not bring the Flange, ) the Flange type (PC, the JPC flange continually) in 11kv transformer,20kv transformer,33kv transformer etc,in 200kva electrical transformer have Swan Neck Type Radiators 2000kva transformer specification has the piece to extend 210mm, 310mm、480mm、520mm、535mm.The center distance includes: 500~4000mm. In addition also has according to supports needs to design the development special specification the piece type radiator

About oil immersed distribution transformer

Farady power and distribution transformer manufacturer,centered on know-how accumulated more than decade many years in oil immersed distribution transformer Area, Farady’s oil-immersed transformers have been supplied to many different sectors which include semiconductor, metal perform, and petrochemical. even more, as an exceptional and thorough oil immersed distribution transformer remedy provider, we respond to the oil immersed energy transformer demanding Needs of our People by Building and Production The two eco-friendly pole mounted distribution transformer and large-capability Essential oil immersed energy transformer.Both oil immersed distribution transformer and pole mounted distribution transformer are created for energy centres,substations and netPerform,also for pad mounted Essential oil immersed energy transformer, applied in community distribution technique, industrial setting up and commercial complexes.

Farady oil immersed transformer for outside applications

Farady oil immersed transformer are use in a broad array of apps, and are commonly oil immersed transformer. Since of security purpose and the flammability of the oil in the oil kind transformer, they are for the most part utilized for outdoors apps. One of the security capabilities in an oil immersed power transformer is a sensor to Inform if fuel is accumulating within the transformer, which is a hint of an electrical arc in the winding. This prevents catastrophic burnout. 

The widest range of oil immersed distribution transformer

Farady supplies the widest range of oil immersed distribution transformer, including specific designsfor power centers, substations, networks and pad mounts.100kva oil transformer are an integral part of power systems with applications in industrial facilities,commercial buildings and utility transmission and distribution networks.The core and coil design of 100kva power transformer is a unique characteristic of Farady’s oil type transformers, whichgenerate the reliability, durability and reduced dimensions required for their application in utilities, industrial installations and public distribution.farady 100kva distribution transformer are manufacturedin accordance with the international quality standards ISO 9001 and ISO 14001.

Farady oil transformer increased resistance to corrosion

oil immersed power transformer as 13 mils minimum of polyester coating providing 15 kV dielectric insulation of tank ground parts from live parts and increased resistance to corrosion.
•  oil transformer speed wrench operable eyebolt bushing for cover mounting.
• Spin-top bushings for either cover or side-wall mount.

all the performance requirements of oil immersed transformer

The  oil immersed transformer paint finish process applies a durable, corrosion resistant finish to the product. The finish meets or exceeds all the performance requirements of ANSI C57.12.28. The multistep process includes an epoxy primer uniformly applied by cationic electrodeposition and a urethane top coat.
100kva oil transformer with low voltage insulators are available in fiberglass reinforced polyester material or porcelain (both eyebolt and spade terminals).
Low voltage neutral grounding strap (furnished on 10-50 kVA single HV bushing units).

oil type transformer for industrial lighting

oil type transformer are specifically designed for servicing residential overhead distribution loads. They are also suitable for light commercial loads, industrial lighting and diversified power applications.
These oil immersed distribution transformer are designed for the application conditions normally encountered on electric utility power distribution systems.

The oil transformer can be used in oil self-cooling mode

The oil transformer use of oil-immersed, self-cooling cooling capacity on the increase in the limit, 40000kVA and below the rated capacity of the transformer can be used in oil self-cooling mode.
100kva oil transformer do not assist the fan with the power supply, no fan noise generated, the radiator can be directly held in the transformer fuel tank, can also be concentrated in the vicinity of the transformer, oil-immersed self-cooling transformer maintenance is simple, can always run at rated capacity.

Two types of oil immersed power transformer

One types of oil immersed power transformer ,The usual transformers are double-winding transformers, that is, there are two windings on the core, one for the original winding, one for the secondary winding.
Another type of oil immersed transformer Three-winding transformers are larger capacity transformers (above 5600 kVA) to connect three different voltage lines. In special cases, there are transformers that use more windings.

oil type transformer, reason for the temperature rise

In the oil type transformer are generally used in a class of insulation, insulation heat resistance of 105 ℃.
As the ambient temperature is generally lower than 40 ℃, so the transformer winding temperature generally reach the limit operating temperature.
oil immersed distribution transformer ,Even in a short time to reach 105 ℃, because the time is very short, the insulation of the winding is not directly dangerous.

oil immersed distribution transformer Features

oil immersed distribution transformer Features
Using high-performance silicon steel sheet, coil conductor and insulation materials
Small size and light weight
Energy saving
Oil type transformer is easy installation

application performance of oil immersed transformer

The oil immersed transformer can be safely reduced to the user can safely use the voltage to ensure that people can safely use electricity.In the use of transformers, pay attention to oil and dry processing workers and, if the oil transformer for a long time not used, running time Too long or other aspects of the situation may cause changes in transformer insulation, internal water or deterioration of oil and other phenomena, must be timely for the transformer oil and drying treatment, to further enhance the application performance of oil-immersed transformers.

oil immersed distribution transformer Technical Specifications

oil immersed distribution transformer Technical Specifications
1. Voltage class: 6~35kV
2. Model of voltage regulation: Off-excitation or on-load tap changer
3. Tapping range: 5%, 2x2.5%,
4. Power Capacity: 30-4000kVA
5. Frequency: 50Hz or 60HZ
6. Phase No.: Single phase or three phases
7. Vector Group: Yyn0 or Dyn11 or according to customers' requirements
8. Impedance voltage: 4~9% or according to customers' requirements
9. oil transformer Service condition: 100% relative humidity, ambient temperature not more than 40ºC or according to customers' requirements
10. Type of cooling: AN or AF
11. Guard class: IP00, IP20, IP23
12. Thermo-tolerance class of insulation: F
13. Insulation level: A. For 10kV class: LI75AC35; B. For 35kV class: LI170AC70

oil type transformer -Scope of application

oil immersed distribution transformer is safe, non-pollute, and flame proof which can be installed directly on the load centre with the merits of free maintenance, easy installation, low combined operation cost, low loss and excellent humidity resistance.
oil type transformer -Scope of application
High-rise buildings, airports, terminals, power plants, transformer stations, residential areas or packages of various sites.

oil immersed distribution transformer Technical Specifications

oil immersed distribution transformer Technical Specifications
1. Voltage class: 6~35kV
2. Model of voltage regulation: Off-excitation or on-load tap changer
3. Tapping range: 5%, 2x2.5%,
4. Power Capacity: 30-4000kVA
5. Frequency: 50Hz or 60HZ
6. Phase No.: Single phase or three phases
7. Vector Group: Yyn0 or Dyn11 or according to customers' requirements
8. Impedance voltage: 4~9% or according to customers' requirements
9. oil transformer Service condition: 100% relative humidity, ambient temperature not more than 40ºC or according to customers' requirements
10. Type of cooling: AN or AF
11. Guard class: IP00, IP20, IP23
12. Thermo-tolerance class of insulation: F
13. Insulation level: A. For 10kV class: LI75AC35; B. For 35kV class: LI170AC70

oil immersed transformer Customized designs

All oil immersed transformer of the size,electrical performance can be designed
according to customer requirements in R&D.
dry transformer applications:
Switching power supplies, adapters and UPS
Computer products
DVD player
DC to DC converters
LCDs, TVs, monitor displays and power boards (LIPS)
OA machines, inverters, chargers and alarm systems
Consumer electric products and battery chargers, printers

Epoxy resin cast dry - type transformers

Factory production of epoxy resin dry-type transformer room with the first domestic product certification of the low-noise low-loss polemounted transformer. As the advanced design, high-quality materials, scientific formula, strict technology and high standards of detection, the product has the following characteristics: 1, high-voltage winding copper wire, low voltage winding copper wire or copper foil, glass fiber mat Filled with a vacuum, filled with epoxy resin without pouring, solidified after curing to form a cylindrical whole, high mechanical strength, partial discharge, high reliability. 2, flame retardant, explosion-proof, do not pollute the environment. Winding the glass fiber and other insulating materials with self-extinguishing characteristics, will not produce short-circuit arc, high heat resin will not produce toxic and harmful gases. 3, the coil does not absorb moisture, iron core clip has a special anti-corrosion protective layer, 100% relative humidity and other harsh environments. Intermittent operation without tide treatment. 4, anti-short circuit, high level of lightning impulse. 5, the coil inside and outside the resin layer is thin, good heat dissipation. Cooling is generally used in natural air cooling. For any level of protection of the three winding transformer, can be equipped with air-cooled system to improve short-term overload capacity to ensure safe operation. 6, low loss, energy-saving effect, economic operation, maintenance-free.

Amorphous alloy transformer into the high-speed growth market

Amorphous alloy on load tap changer transformer market into high-speed growth period Transformer is the use of electromagnetic induction principle to change the AC voltage of the device, in electrical equipment and wireless circuits, commonly used for lifting voltage, matching impedance, safety isolation. At present there are a certain number of domestic transformer manufacturers more than 1,200, can manufacture transformers, transformers, reactors, voltage regulators and supporting components and other products. In recent years, China's rapid growth in demand for electricity, power grid construction and investment in high-speed driving the power transmission equipment market demand. Large power construction funds to the transformer industry (including transformers, transformers, reactors, component manufacturers) has brought opportunities and challenges, prompting the transformer industry has been rapid development. Business Information Network data show that the first three quarters of 2011, China's transformer production of more than 1.1 billion KVA, an increase of 13.9%. With the deepening of power grid renovation project, the upgrading of power grid speed up, China's transformer production will maintain rapid growth is expected by 2015, China's transformer production will be more than 2 billion KVA. With China's energy-saving policies continue to deepen, the state encourages the development of energy-saving, low noise, intelligent distribution transformer products. High-power Amorphous Core Transformer facing the technical upgrading, upgrading the demand, the future will gradually be energy saving, materials, environmental protection, low-noise transformers replaced. Amorphous alloy transformer has both energy-saving and economy, its notable feature is a very low no-load loss, in line with national industrial policies and energy-saving power grid requirements, is the most advanced energy-saving effect, the use of cost is more economical distribution Transformer products. In solving the problem of noise, the products are generally applicable to urban and rural areas of various types.