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Transformers (2 Units)

Load tap switching transformer
Standard JEC-220-2014
Phase number 3
Rated frequency 50Hz
Cooling method ONAN / ONAF
Rated Capacity (KVA) Primary 20000/22000 Secondary 20000/22000
Rated voltage (V) primary 66000 secondary 6600
Rated current (A) primary 175/192 secondary 1750/1925
Test voltage value (KV) primary L1 350 AC 140 secondary L1 60 AC22
Temperature rise limit
Number of turns 65K Oil 60K
23T each in weight

1. Inverter duty Solar transformers, suitable for solar load profile.
2. Multi-winding (2 to 6 windings), oil-filled or dry type.
3. 2MVA to 12.5MVA, LV Side: 0.35kV to 0.69kV, HV Side 3.3kV to 33kV.
4. Low-loss, with Aluminum or Copper winding.
5. Electrostatic shield between LV and MV Winding.
6. Fully type tested at internationally recognized laboratory.
7. Designed with high efficiency, environmental friendliness, superior operational reliability and minimal Total Cost of Ownership.
8. Ideally suited for large MW scale solar PV plants.

Used transformers

Used transformers

This standard is applicable to three-phase double winding oil immersed power transformer with voltage class 35kV, rated capacity 50 ~ 31500kVA and frequency 50Hz. Â.

This standard is not suitable for dry and damp heat belt type power transformer and power plant, transformer substation own three phase power transformer.

66KV series product line has found a far-flung avail not only in agricultural grid modification within urban and rural areas, but also in industrial or mineral enterprises. Till now, the corporation has formed its series and commercially scaled production and the product line runs well and thereby is highly appraised by our popular users.

ã??ã??The transformer body is reliably positioned for ensuring that no dislocation occurs with the transformer and no deformation occurs with the windings during long-distance transportation or during long-term operation. Without the need of core suspension and being maintenance free, this product line may be used just via direct grid connection

This standard is applicable to three-phase double winding oil immersed power transformers with rated voltage of 6 and 10kV, rated capacity of 30 ~ 6300kVA and frequency of 50Hz. This standard is not suitable for dry and damp heat belt type power transformer and power plant, transformer substation own three phase power transformer.

three phase double winding amorphous alloy transformer

- Extremely Low Loss, Energy-Saving Features, High Power Consuming Efficiency;

- Amorphous Metal Materials are advantageous in that: They just need to consume lesser energy in material manufacture and with their extremely low losses, power is saved in a large sum, thereby greatly reducing the power plant output, or relatively lowering waste gas (CO2, SO2) emission, lessening both environmental pollution and greenhouse effects, and realizing a maintenance free and contamination free state;

- Low in Operating Temperature, Tardy in Insulation Aging, and Long in Transformer Life;

- High Overload Capacity, High Mechanical Strength;

- Amorphous Cores are featured in that: When a magnetic flux pass through amorphous cores in a rather high frequency, these amorphous cores may remain a low iron loss and a low exciting current, which may not result in core saturation. Consequently SBH15 amorphous alloy transformers made from amorphous cores possess a rather fine resistance to harmonic waves;

- Rapid Investment Recovery

Various Transformers manufactured in South Korea

Distribution board is also called a panel board, breaker panel, electric panel or DB box. Its main function is to divide the electrical power evenly among all the electrical devices. The primary functions also include power generation, transmission and distribution.

TRANSFORMER

TRANSFORMER

Specifications

Application Industrial Use
Condition New
Frequency 50hz, 60hz
Tensile Strength 0-25Mpa, 125-150Mpa, 175-200Mpa
Features Easy To Install, Four Times Stronger, Superior Finish

Specifications

Condition New
Frequency 0-50Hz, 100-200Hz, 200-400Hz
Tensile Strength 125-150Mpa, 175-200Mpa, 75-100Mpa
Features Easy To Install, Four Times Stronger, Superior Finish
Warrenty 5yrs
Automation Grade Automatic
Production Power 100-250kw, 250-500kw, 50-100kw, 500-750kw

This static piece of apparatus improves efficiency and also reduces losses during run time.

We provide best in class Power transformer which range from 33 KV to 200 KV voltage class and average rating starts from 200MVA onwards.

We strictly adhere to international standards and certifications backed with GMP and best in class service provider.

And this domestic and LT static provides precise reading (voltage) at either step down or step up mode. It is made possible with stringent GMP backed with years of experience.

We provide best in class Distribution transformer which range from 11KV to 22KV voltage class and average rating starts from 10kVA onwards.

We strictly adhere to international standards and certifications backed with GMP and best in class service provider.

Cast Resin Dry Type Transformer with Cooling Fan
Tailiâ??s advanced epoxy resin casting process ensures excellent insulation, high mechanical strength, and superior heat dissipation for safe and stable operation even under harsh environments.
Two cooling methods are available: natural air cooling (AN) and forced air cooling (AF). 
Our dry-type transformers  are designed and manufactured in accordance with IEC, IEEE, ANSI, and DOE standards, and are fully CE, SGS, and CNAS certified.
Each unit can be customized to meet your project's exact specifications including voltage, capacity, vector group, impedance, and special installation requirements making it suitable for industrial plants, commercial complexes, renewable energy systems, and utility projects.
Features of Dry Type Transformer:
1. Fireproof, non-polluting, and suitable for direct installation in load centers.
2. High mechanical strength, strong short-circuit resistance, low partial discharge, excellent thermal stability, and long service life.
3. Designed with low losses, low noise, and significant energy-saving performance, ensuring maintenance-free operation.
4. Strong overload capability; output capacity can be increased when using forced air cooling.
5. Reliable operation even in humid or harsh environmental conditions.
6. Equipped with a smart monitoring unit that automatically detects and displays the winding temperature of each phase, starts and stops the cooling fan, and provides alarm and trip protection.
7. Small footprint, easy installation, and lower overall installation cost.

Applications
Data centers and server farms (indoor, continuous duty).
 Hospitals, airports and commercial buildings (safety & low-fire risk).
Food & pharma facilities and clean rooms (oil-free environment).
Renewable energy substations and industrial plants (reliability under cyclic loads).

Greetings from Raj Transforma, India.
We are manufacturers and suppliers of distribution transformers for utility and industrial applications.
Please visit Our Website for complete details.


We can supply:
* 25 kVA to 200 kVA Distribution Transformers
* 11/0.433 kV units
* Aluminium winding
* IEC 60076/ IS standard

Competitive pricing
Fast delivery

The GE Transformer 300kVA Three-Phase Dry Type Isolation Transformer delivers safe, stable, and high-quality power for industrial and commercial applications. With advanced insulation and precision engineering, it provides reliable electrical isolation to protect automation systems, CNC machinery, medical equipment, data centers, and other sensitive loads from voltage spikes, electrical noise, and grid disturbances.

Its dry-type, oil-free design ensures safer operation, lower maintenance, and reduced environmental impactâ??making it ideal for commercial facilities and power-critical environments.

Key Features:
300kVA three-phase power for stable and balanced performance
Full electrical isolation to protect sensitive equipment from surges and interference
Dry-type, oil-free design for enhanced safety and reliability
High efficiency with low energy loss
Low noise operation for commercial and noise-sensitive environments
Durable construction for long service life

The GE Transformer 167kVA Single Phase Pad Mounted Transformer is a high-performance, energy-efficient solution for residential, commercial, and light industrial power distribution. Designed to meet international standards such as IEEE, ANSI, CSA, and DOE, this pad mounted transformer ensures stable voltage output, low losses, and long-term reliability, making it ideal for underground distribution networks, housing developments, and commercial facilities.

Built with a compact, tamper-proof enclosure, the GE Transformer unit enhances safety in public and outdoor environments while optimizing space usage. Its sealed tank design, combined with premium insulation options like mineral oil or eco-friendly FR3 fluid, provides excellent thermal performance, fire resistance, and environmental protection.

This 100kVA single phase pad mounted transformer features a primary voltage of up to 34.5kV and a standard secondary voltage of 120/240V, operating at 50/60Hz. It supports both radial and loop feed configurations and includes essential components such as a load break switch, tap changer, bayonet fuse protection, and pressure relief device for enhanced operational flexibility and safety. Advanced ONAN or KNAN cooling ensures efficient heat dissipation without additional maintenance.

The GE Transformer 250kVA Single Phase Pad Mounted Transformer is a high-performance, energy-efficient solution for residential, commercial, and light industrial power distribution. Designed to meet international standards such as IEEE, ANSI, CSA, and DOE, this pad mounted transformer ensures stable voltage output, low losses, and long-term reliability, making it ideal for underground distribution networks, housing developments, and commercial facilities.

Built with a compact, tamper-proof enclosure, the GE Transformer unit enhances safety in public and outdoor environments while optimizing space usage. Its sealed tank design, combined with premium insulation options like mineral oil or eco-friendly FR3 fluid, provides excellent thermal performance, fire resistance, and environmental protection.

This 100kVA single phase pad mounted transformer features a primary voltage of up to 34.5kV and a standard secondary voltage of 120/240V, operating at 50/60Hz. It supports both radial and loop feed configurations and includes essential components such as a load break switch, tap changer, bayonet fuse protection, and pressure relief device for enhanced operational flexibility and safety. Advanced ONAN or KNAN cooling ensures efficient heat dissipation without additional maintenance.

Every GE Transformer product undergoes rigorous factory testing, including load loss, no-load loss, dielectric, and temperature rise tests, ensuring consistent quality and performance. With up to 99% efficiency, reduced operating costs, and easy installation, the GE Transformer 100kVA Single Phase Pad Mounted Transformer is the ideal choice for reliable, safe, and cost-effective power distribution.

GE Transformerâ??s 2500 kVA pad-mounted transformers are designed for reliable, efficient, and safe power distribution in utility, industrial, and commercial applications. These three-phase pad-mounted transformers are engineered for outdoor ground-level installation and deliver consistent performance across a wide range of applications, from residential developments to large-scale manufacturing and infrastructure projects.

Each transformer complies with IEC, ANSI, IEEE, and U.S. Department of Energy (DOE) energy efficiency standards, offering flexible primary voltage options ranging from 2.4 kV to 34.5 kV, as well as secondary voltage configurations such as 208Y/120V or 480Y/277V. These transformers support both ring and radial power distribution configurations and are available in single-voltage and dual-voltage designs to accommodate diverse grid requirements.

Key features include: ONAN/ONAF and KNAN/KNAF cooling systems, high-quality silicon steel cores to minimize losses, and oil-immersed insulation for enhanced durability. Integrated components such as load break switches, tap changers, pressure relief devices, oil level indicators, and thermometers facilitate monitoring and maintenance. A fully sealed, corrosion-resistant enclosure ensures long-term, stable operation in harsh environments.

By choosing our underground distribution transformers, you will benefit from reliable performance, customizable configurations, and proven reliability in modern power systems.

GE Transformer's 3000 kVA pad-mounted transformers are designed for reliable, efficient, and safe power distribution in utility, industrial, and commercial applications. These three-phase pad-mounted transformers are engineered for outdoor ground-level installation and deliver consistent performance across a wide range of applications, from residential developments to large-scale manufacturing and infrastructure projects.

Each transformer complies with IEC, ANSI, IEEE, and U.S. Department of Energy (DOE) energy efficiency standards, offering flexible primary voltage options ranging from 2.4 kV to 34.5 kV, as well as secondary voltage configurations such as 208Y/120V or 480Y/277V. These transformers support both ring and radial power distribution configurations and are available in single-voltage and dual-voltage designs to accommodate diverse grid requirements.

Key features include: ONAN/ONAF and KNAN/KNAF cooling systems, high-quality silicon steel cores to minimize losses, and oil-immersed insulation for enhanced durability. Integrated components such as load break switches, tap changers, pressure relief devices, oil level indicators, and thermometers facilitate monitoring and maintenance. A fully sealed, corrosion-resistant enclosure ensures long-term, stable operation in harsh environments.

By choosing our underground distribution transformers, you will benefit from reliable performance, customizable configurations, and proven reliability in modern power systems.

GE Transformer introduces advanced European technology and optimizes the design of epoxy resin cast dry-type transformers through patented technology and special software. The core of this product is made of high-quality oriented cold-rolled silicon steel sheet material and adopts a new step-joint technology to improve the no-load performance of the core greatly. The coil uses American Huntsman epoxy resin. This product has good resin permeability and no bubbles, so the amount of partial discharge is small. The high and low voltage coils are closely matched and have strong structural strength, thus ensuring strong short circuit resistance and vibration resistance. This product has a service life of 30 years under normal use conditions. During the operating life period, the product will not cause cracks on the coil surface due to temperature changes under normal use conditions.

Advantages of 33KV dry-type transformers:
GE Transformer introduces advanced European technology and optimizes the design of epoxy resin cast dry-type transformers through patented technology and special software. The core of this product is made of high-quality oriented cold-rolled silicon steel sheet material and adopts a new step-joint technology to improve the no-load performance of the core greatly. The coil uses American Huntsman epoxy resin. This product has good resin permeability and no bubbles, so the amount of partial discharge is small. The high and low-voltage coils are closely matched and have strong structural strength, thus ensuring strong short-circuit resistance and vibration resistance. This product has a service life of 30 years under normal use conditions. During the operating life period, the product will not cause cracks on the coil surface due to temperature changes under normal use conditions.

GE Transformer produces dry-type transformers whose performance indexes conform to IEC60076, GB20052-2020, ISO9001, ANSI, CSA, and other international standards, which are proven by users to be reliable in operation and reach international advanced level. The series products adopt the worldâ??s advanced manufacturing technology, the design drawings and technical documents are complete, correct, and clear, the production equipment is advanced, the manufacturing process is stable, the measurement means are complete, and we can complete the design and production within 2-3weeks, providing strong support and solid guarantee for customers.

Advantages of dry-type transformers:
Because of the advantages of strong short-circuit resistance, low maintenance workload, high operational efficiency, small size, and low noise, dry-type transformers are often used in places with high performance requirements such as fire prevention and explosion protection. They are safe, fireproof, non-polluting, and can be used directly for high-load power consumption;
High mechanical strength, high short-circuit resistance, small partial discharge, good thermal stability, high reliability, and long service life due to the adoption of advanced technology in China.
Low loss, low noise, obvious energy-saving effect, and maintenance-free.
Good heat dissipation performance, strong overload capability, and short-time over-capacity operation under forced cooling;
It has a certain moisture-proof performance and can be operated under the harsh environment of high humidity.
The dry-type transformer can be equipped with a complete temperature detection and protection system. An intelligent signal temperature control system is used to automatically detect and display the operating temperature of each of the three phase windings and to automatically start and stop the shutdown unit, with alarm and trip settings.
Small size, lightweight, low space requirement, and low installation cost.
Using Environment
Altitude: Conventional is used below 2000 meters, more than 2000 meters need to be customized
Ambient temperature:
Highest air temperature +45�ºC
Minimum outdoor air temperature -15�ºC
Scope of application:
10kv dry type transformer can be used for power distribution in heavy load centers represented by commercial areas, factories, hospitals, airports, tunnels, chemical factories, shipyards, etc.

GE Transformer develops and produces S11-M series fully sealed oil-immersed power transformers with the advantages of low loss, low noise, and high efficiency, which can achieve good energy-saving effects and reduce pollution. Compared with ordinary oil-immersed transformers, the fully sealed transformer cancels the oil storage cabinet, the change of oil volume is compensated by the elasticity of the corrugated oil tankâ??s corrugated sheet to adjust automatically, the transformer is isolated from air, preventing and slowing down the deterioration of oil and insulation aging, enhance the operation reliability, normal operation maintenance-free

Three phase oil immersed transformer features

1. The transformer core adopts imported cold-rolled silicon steel sheet stacked, which greatly reduces no-load loss and no-load current, and ties the core to ensure the tightness of the core and reduce noise.
2, high and low voltage winding with oxygen-free copper winding, low voltage winding 500kVA and below using double cylinder structure. 630kVA and above using double spiral or four spiral structure, high voltage winding using multi-layer cylinder structure.
3 The transformer connection group adopts Dyn11, reduces the impact of harmonics on the grid, and changes the quality of the power supply.
4ã??Transformer is a fully sealed structure, prolonging the service life, free of lifting core, and free of maintenance.
5ã??The actual measured noise value is lower than the standard.
This series of transformers by regular transport, no need to lift the core check, can install the relevant parts, acceptance project test, after passing can be put into operation

Using Environment

Ambient temperatureï¼?-20�°C to +40�°C
Altitude: Conventional is used below 2000 meters, more than 2000 meters need to be customized


Type Rated power
(kVA) Winding connection Voltage combination No-load loss
(W) On-load loss(W) No-load current
(%) Short Circuit Impedance
(%)
High voltage Voltage regulation range Low voltage
S11-M-30 30 Yyn0
or
Dyn11

6
6.3
10
10.5
11 �±5%
or
�±2�?2.5% 0.4 100 630/600 2.3 4.0
S11-M-50 50 130 910/870 2.0 4.0
S11-M-63 63 150 1090/1040 1.9 4.0
S11-M-80 80 180 1310/1250 1.9 4.0
S11-M-100 100 200 1580/1500 1.8 4.0
S11-M-125 125 240 1890/1800 1.7 4.0
S11-M-160 160 280 2310/2200 1.6 4.0
S11-M-200 200 340 2730/2600 1.5 4.0
S11-M-250 250 400 3200/3050 1.4 4.0
S11-M-315 315 480 3830/3650 1.4 4.0
S11-M-400 400 570 4520/4300 1.3 4.0
S11-M-500 500 680 5410/5100 1.2 4.0
S11-M-630 630 810 6200 1.1 4.5
S11-M-800 800 980 7500 1.0 4.5
S11-M-1000 1000 1150 10300 1.0 4.5
S11-M-1250 1250 1360 12800 0.9 4.5
S11-M-1600 1600 1640 14500 0.8 4.5
S11-M-2000 2000 2280 17820 0.6 5.0
S11-M-2500 2500 2700 20700 0.6 5.0

GE Transformer manufactures high-efficiency 20kV class three phase oil immersed distribution transformers designed for substations, industrial facilities, commercial buildings, and renewable energy systems.

Our transformers comply with IEC 60076 and GB/T 1094 standards, ensuring reliable performance, low energy loss, and long service life over 30 years.

Compared with 10kV systems, the 20kV power distribution solution significantly increases transmission capacity, improves voltage quality, and reduces system investment costs.



Key Features & Advantages

1. High Energy Efficiency

Available in S11, S13, and S20 energy saving series

Noâ??load loss reduced by up to 40%

Optimized silicon steel core design

Lower operational and lifecycle costs

2. Premium Copper Windings

High-purity electrolytic copper conductors

LV winding: copper foil cylindrical structure

HV winding: multi-layer cylindrical design

Balanced ampere-turn distribution

Excellent short-circuit withstand capability

3. Advanced Insulation & Oil Treatment

Vacuum drying of core and windings

Vacuum oil filtration and filling process

Nitrogen sealing to prevent oxidation and moisture

Enhanced dielectric strength

4. Fully Sealed Corrugated Tank Design

Corrugated oil tank with thermal expansion compensation

No external conservator required (optional conservator type available)

Prevents moisture ingress and oil aging

Maintenance-free operation

5. Strong Mechanical Structure

Core and windings securely clamped

Anti-loosening lock nuts

Withstands transportation shock and vibration


Item Specification
Rated Voltage (HV) 20kV
Rated Voltage (LV) 0.4kV or customized
Capacity Range 30 -3000 kVA
Phase Three-Phase
Frequency 50Hz / 60Hz
Cooling Method ONAN (Oil Natural Air Natural)
Insulation Class Class A
Vector Group Dyn11 / Yyn0 (optional)
Tap Changer ±5% or ±2-2.5% Off-Circuit Tap Changer
Impedance Voltage According to IEC standard
Noâ??Load Loss As per S11 / S13 / S20 standard
Load Loss According to capacity rating
Noise Level 60 dB at 1 meter
Oil Tank Type Corrugated sealed / Conservator type
Altitude 1,000m or Customized
Accessories Conservator tank, oil level indicator, gas relay, pressure relief valve, etc.
Standards IEC60076 ANSI C57, IEEE, UL, CSA
Warranty Typically one year, depending on the client's specific needs
Delivery Time Generally, it is 20-30 days. It is according to the quantity.

GE TRANSFORMER PROTECTION RELAY
The T60 Transformer Protection System is part of the Universal Relay (UR) series of products. It is a microprocessor-based
relay for protection of small, medium, and large three-phase power transformers. The relay can be configured for a
maximum of six three-phase current inputs and six ground current inputs, and can satisfy applications with transformer
windings connected between two breakers, such as in a ring bus or in breaker-and-a-half configurations. The T60
performs magnitude and phase shift compensation internally, eliminating requirements for external CT connections and
auxiliary CTs.

* Three Phase (3PH ) Step Down Transformer :- 3KVA to 600KVA

* A three-phase step-down transformer is a crucial component in electrical power distribution systems. It is designed to convert high voltage, low current power into low voltage, high current power to meet the demands of various industrial and commercial applications. This type of transformer is commonly used in power plants, substations, and industrial facilities to step down the incoming high voltage power from the grid to a lower voltage suitable for distribution and utilization. The step-down transformer is available in a wide range of sizes, with the capacity ranging from 3KVA to 600KVA, making it a versatile solution for different power requirements.

* One of the key advantages of a three-phase step-down transformer is its efficiency in power conversion. As compared to single-phase transformers, a three-phase transformer is more efficient in converting power due to its three sets of primary and secondary windings, resulting in lower losses and improved voltage regulation. This makes it a cost-effective solution for power distribution, as it can handle higher loads while maintaining a steady voltage.

* Range : Input :- 415V
* Output :- 415V,220V,200V
* Customized Voltages

* The K Rated Isolation Transformer is a top-notch electrical device that guarantees dependable and secure power isolation. Its K rating provides added defense against electrical disruptions and ensures the safety of delicate equipment. Constructed with durable materials and advanced technology, this transformer efficiently transfers power and reduces electromagnetic interference. It is the perfect option for applications that necessitate isolation and protection, including medical facilities, data centers, and industrial settings. The K Rated Isolation Transformer is a trustworthy solution for preserving the reliability and effectiveness of your electrical systems.

Send me blueprints or draws with dimensions information to quote

Size: Request customize
L: Customer's requested specification
Material: Iron, Power Core, Ferrite Core

Beta Power Controls, Coimbatore, India an ISO 9001:2015 TVE accredited company, leading manufacturing & Exports of Servo Voltage Stabilizer, Isolation Transformers, Frequency Converter, Two phase to three phase converter, Variable Transformer, Rectifiers energy saving equipment in India. Our products are well appreciated world over and received much recognition for their quality.

Established in 2007 with a corporate objective to provide efficient energy for greener future, Beta Power Controls has grown to be one of the countryâ??s biggest manufacturers of power saving and power conditioning equipmentâ??s with the largest satisfied customer base. The products manufactured by us have made a distinct place in the market owing to their features like excellent performance, longer lifespan and less power consumption. With an objective to manufacture quality products, our experts use the latest equipment and best quality raw material provided by our trusted vendors of the market. We regularly Exports to isolation transformer in Dubai. Beta Power Isolation Transformers offer complete line isolation, continuous noise filtering to eliminate harmonic distortion and enhanced common mode surge suppression internal low impedance isolation transformer

component with Faraday Shield offers 100 % isolation from the input AC line. The Common Mode Noise and Normal Mode Noise are generated in the common Utility Mains due to the Parallel connection of the critical loads to the Noise generating loads. These High magnitudes noises occur between conductors due to switching action of the Load connected in parallel to the sensitive loads, These noise is Isolated by Beta power transformers and safe guard the critical/precise loads like CNC / Medical / Software industry etc. We manufacture 1 kVA to 2000 kVA capacity designed for isolating sensitive equipment from Line Voltage Transients, Spikes & D.C. leakage. Also removes EMI/RFI noise, utility switching transients, and background spikes. Keeping in mind the varied demands of the clients,

*The input voltage, output voltage, frequency and phase can be custom made.

Our Tamil Nadu Supply Network

Coimbatore, Erode, Salem, Karur, Namakkal, Trichy, Thanjavur, Kumbakonam, Mayiladuthurai, Panruti, Cuddalore, Pondicherry, Villupuram, Chennai, Vellore, Ambur, Krishnagiri, Hosur, Madurai, Sivakasi, Rajapalayam, Virudhunagar.

Our India Supply Network

We are looking for queries Beta Power Equipment from Tamil Nadu, Kochi, Ernakulam, Palakkad, Kerala, Bangalore, Karnataka, Andhra Pradesh, Goa, Maharashtra, Andaman and Nicobar Island.

Our Export / Global Network

Kenya, Muscat, Egypt, Tanzania, Ethiopia Nigeria, UAE, Kuwait, UK, Qatar, Congo, Saudi Arabia, Malaysia, Philippines, Sri Lanka, South Africa, Yemen, Benin, Angola, Mozambique, Peru, Singapore, Dubai, Lagos, Bahrain, Uganda, Australia, USA, New Zealand.

A transformer is an electrical device which is used to transfer power from one circuit to another through electromagnetic induction. The power transfer is accompanied without frequency change. In an electronic system, the term power transformer is used to provide a number of AC supplies of several voltages and appropriate values of current from the public electricity supply.
Tungwell oil immersed transformers are up to 750kV, 1500MVA and cast resindry type transformers are up to 110kV, 40MVA. Our design team has very strong design capabilities and uses a variety of design software including 2D and 3D electrical field FEM and Magnetic flux leakage calculators. The resulting products come with many advanced features such as low loss design, short circuit withstand assurance, reliable extra-high voltage protection with overheating controls.
The range of small power transformers can be from500-7500kVA
The range of medium power transformers can be from-100MVA
The range of large power transformers can be from100MVA & beyond

Our produced 110KV series product line has formed a standardized colony, with its versions developed from former 9 versions to present 1011 or 13 versions. Furthermore, new product versions with a self-cooling configuration, with an air-cooling & maintenance-free configuration, and with a no-core-suspension configuration have been released into the markets.

In featured performance, the product line is core suspension free on site, highly efficient and energy saving, high in impedance, low in loss, in noise, in temperature increase, and in local discharge, i.e., â??1 free, 2 highs, and 4 lows. This product line may satisfy market demands requiring high power supply quality, low losses and low noise, and a long interval between overhauls.

Tungwell also offers a wide variety of power auxiliaries and materials available for all your power generating, transmission, distribution and protection needs.

We offer a full range of customer supports for all products & equipment that we support and manufacture, such as genuine engine parts for generating sets and Gas Turbines, Protection devices as CT, PT, SA, T&Dline hardware, etc.

12V 24V 1000VA Open Electric Single-Phase Machine Tool Isolation Control Three-Phase Power Transformer (1)

Deal Information-

97 Transformers

16 -630 KVA

30- 315KVA

5- 1000KVA

6- 1500KVA

9 -100KVA

3-200KVA

13- 25KVA

Plus miscellaneous all Brand-New transformers.

Rate - Negotiable [ Please note we are not seeking retail or wholes sale rates]

We are a professional manufacturer specializing in high-voltage power transformers ranging from 35kV to 500kV. Designed for reliable power transmission and distribution, our transformers feature excellent electrical performance, low loss, and compact structure. All products strictly comply with IEC and GB standards.
We offer a complete portfolio to meet different grid requirements. Customized designs are fully supported based on your specific voltage and capacity needs.

35kV S11 Series: Three-phase double-winding, Non-excitation regulating. Rated power from 3,150 kVA to 100,000 kVA. Vector group: Yd11 / YNd11.

110kV 11 Series: Three-phase double-winding. Rated power from 6,300 kVA to 120,000 kVA. Vector group: YNd11. Short-circuit impedance: 10.5%.

220kV 11 Series: Three-phase double-winding. Rated power from 31,500 kVA to 420,000 kVA. Low-voltage taps available from 6.3kV to 20kV.

330kV 11 Series: Three-phase three-winding. Rated power from 90,000 kVA to 240,000 kVA.

500kV Series: Single-phase three-winding auto-transformer with medium voltage terminal regulation. Rated power from 120 MVA to 334 MVA.

Core Advantages
1. Cost-Effective: Optimized core and coil design effectively reduces no-load and load losses.

2. High Reliability: Advanced insulation structure ensures stable operation under extreme conditions.

3. Flexible Winding Options: Available in Full Copper or Aluminum windings to match your budget and performance requirements.


To get the most accurate quotation, please send us an inquiry with the following details:

Required Voltage Level (e.g., 110kV) & Rated Capacity (kVA/MVA)ï¼? Winding Materialï¼? Special requirements: Altitude, corrosion protection, or cooling method.

We are a professional manufacturer specializing in high-voltage power transformers ranging from 35kV to 500kV. Designed for reliable power transmission and distribution, our transformers feature excellent electrical performance, low loss, and compact structure. All products strictly comply with IEC and GB standards.
We offer a complete portfolio to meet different grid requirements. Customized designs are fully supported based on your specific voltage and capacity needs.

35kV S11 Series: Three-phase double-winding, Non-excitation regulating. Rated power from 3,150 kVA to 100,000 kVA. Vector group: Yd11 / YNd11.

110kV 11 Series: Three-phase double-winding. Rated power from 6,300 kVA to 120,000 kVA. Vector group: YNd11. Short-circuit impedance: 10.5%.

220kV 11 Series: Three-phase double-winding. Rated power from 31,500 kVA to 420,000 kVA. Low-voltage taps available from 6.3kV to 20kV.

330kV 11 Series: Three-phase three-winding. Rated power from 90,000 kVA to 240,000 kVA.

500kV Series: Single-phase three-winding auto-transformer with medium voltage terminal regulation. Rated power from 120 MVA to 334 MVA.

Core Advantages
1. Cost-Effective: Optimized core and coil design effectively reduces no-load and load losses.

2. High Reliability: Advanced insulation structure ensures stable operation under extreme conditions.

3. Flexible Winding Options: Available in Full Copper or Aluminum windings to match your budget and performance requirements.


To get the most accurate quotation, please send us an inquiry with the following details:

Required Voltage Level (e.g., 110kV) & Rated Capacity (kVA/MVA)ï¼? Winding Materialï¼? Special requirements: Altitude, corrosion protection, or cooling method.

Air-Insulated Dry-Type Transformer VPI
TAILI SG(B) air-barrier dry-type transformer (VPI) is designed for safe, reliable operation. It offers low losses, minimal partial discharge, low noise, and fire safety, with flame-retardant materials and no harmful emissions, making it environmentally friendly and maintenance-free.
Its compact, moisture-resistant design allows reliable performance even in dusty, humid, or harsh conditions.
Applications include airports, hospitals, power plants, high-rise buildings, shopping malls, residential areas, petrochemical facilities, and other critical or high-fire-safety locations.
Taili Dry-Type Transformers are designed and tested to meet IEC, IEEE, UL, and other international standards, supporting acceptance in global projects and compliance with safety requirements.
VPI Dry-Type Transformers provide an environmentally responsible and cost-effective solution for a wide range of applications. Unlike traditional liquid-filled transformers, they minimize fire risks, reduce maintenance requirements, and eliminate the potential for environmental contamination, making catch basins unnecessary during installation.
· Environmentally friendly alternative to oil-filled transformers
· Low-maintenance design
· Suitable for diverse applications
Why Choose TAILI
Our VPI dry-type transformers deliver lower lifecycle cost because:
· Higher efficiency and heat management reduce energy losses over the product lifetime.
· Minimal maintenance with no oil testing or replacement is needed.
· Long service life with fewer failures means less downtime and fewer repairs â?? a cost most competitors don't highlight.
Main Features of VPI Dry-Type Transformer
1. High Safety Standard â?? Non-flammable H-class resin, free from toxic gases and combustion risks.
2. Strong Overload Capacity â?? Supports temporary overload operation with intelligent temperature control.
3. Easy Maintenance â?? Simple structure and reliable design for long-term, hassle-free operation.
4. Low Noise & Energy Saving â?? Equipped with premium CRGO silicon-steel core for minimal loss and quiet performance.
5. Excellent Moisture Resistance â?? NOMEX insulation ensures superior resistance to humidity and water intrusion.
6. No Partial Discharge, No Cracking â?? Stable and reliable performance even under extreme conditions.
7. Flexible Design â?? Compact, lightweight, and customizable to meet diverse installation and capacity requirements.

1250kVA Dry-Type Transformer for Bangladesh
Taili's advanced epoxy resin casting process ensures excellent insulation, high mechanical strength, and superior heat dissipation for safe and stable operation even in harsh environments.
Two cooling methods are available: natural air cooling (AN) and forced air cooling (AF).
Our dry-type transformers are designed and manufactured in accordance with IEC, IEEE, ANSI, and DOE standards, and are fully CE, SGS, and CNAS certified.
Each unit can be customized to meet your project's specifications â?? including voltage, capacity, vector group, impedance, and special installation requirements â?? making it suitable for industrial plants, commercial complexes, renewable-energy systems, and utility projects.
Typical Applications
This transformer is widely used in sectors where dependable and safe power distribution is crucial:
· Industrial Facilities & Manufacturing Plants â?? Stable power for heavy machinery
· Commercial Complexes & Office Buildings â?? Efficient distribution without oil handling
· Data Centers & Communication Hubs â?? Environmentally friendly, low-noise operation
· Hospitals, Hotels & Institutions â?? Enhanced safety for indoor installations
· Infrastructure Projects â?? Substations and public utilities for urban electrification
Features of 1250kVA Dry-Type Transformer:
1. Fireproof, non-polluting, and suitable for direct installation in load centers.
2. High mechanical strength, strong short-circuit resistance, low partial discharge, excellent thermal stability, and long service life.
3. Designed with low losses, low noise, and significant energy-saving performance, ensuring maintenance-free operation.
4. Strong overload capability; output capacity can be increased when using forced-air cooling.
5. Reliable operation even in humid or harsh environmental conditions.
6. Equipped with a smart monitoring unit that automatically detects and displays the winding temperature of each phase, starts and stops the cooling fan, and provides alarm and trip protection.
7. Small footprint, easy installation, and lower overall installation cost.

Taili's 35kV Dry-Type Transformer with OLTC (On-Load Tap Changer) is designed for applications with large voltage and capacity.
The OLTC stabilizes output voltage, balances load distribution, and optimizes reactive and active power, supporting safe, stable, and efficient operation of the power system through accurate, real-time voltage regulation.
The dry-type transformer with OLTC is widely used in industrial plants, data centers, commercial buildings, renewable-energy systems, power-distribution substations, and areas with unstable grid voltage, especially where high safety and voltage stability are required.
Taili products fully comply with IEC 60076 and IEC 60214 standards.
Features of 2500kVA Dry-Type Transformer with OLTC:
1. Safe, fire-resistant, and environmentally friendly, suitable for installation directly at load centers.
2. Advanced manufacturing technology with high mechanical strength, strong short-circuit resistance, low partial discharge, and long service life.
3. Low-loss, low-noise, energy-saving, and maintenance-free design.
4. Excellent heat dissipation and strong overload capability, with capacity enhancement under forced-air cooling.
5. Reliable operation in high humidity and harsh environments.
6. Intelligent temperature monitoring and protection system with automatic fan control, alarm, and trip functions.
7. Compact size, lightweight, small footprint, and low installation cost.
Technical Highlights
· On-Load Tap Changer (OLTC): Enables voltage adjustment without shutdown, supporting consistent voltage under varying load conditions.
· Vacuum Cast Epoxy Resin Technology: Provides protection from moisture, dust, and chemicals.
· High Insulation Class: Suitable for harsh environmental conditions.
· Eco-Friendly & Safe: No oil leakage; self-extinguishing design.

IEC/ANSI Cast Resin Transformers from TAILI Electric differ from oil-type transformers because their cores and windings are not impregnated in insulating oil. Designed for indoor installation, they are widely used for local lighting, high-rise buildings, airports, docks, CNC machinery, and equipment.

The cooling method can be divided into natural air cooling (AN) and forced air cooling (AF). With natural air cooling, the cast-resin transformer can operate continuously at rated capacity for a long period. With forced air cooling, fire-resistant transformer output capacity can be increased by up to 50%. It is suitable for intermittent overload or emergency overload operation; because load loss and impedance voltage increase during overload, it is not economical for long-term continuous overload operation.

The GE Transformer 167 KVA Pole Mounted Transformer is a reliable and energy-efficient single-phase distribution transformer designed for utility, residential, agricultural, and light commercial power distribution systems. Engineered for overhead network applications, it delivers stable voltage regulation, dependable performance, and long-term operational reliability in a wide range of environmental conditions.

Manufactured with a high-quality silicon steel core and premium copper or aluminum windings, this 167KVA pole mounted transformer minimizes energy losses while maximizing efficiency. Its durable, weather-resistant steel tank and advanced insulation system provide excellent protection against moisture, corrosion, and harsh outdoor conditions, ensuring a long service life with minimal maintenance.