Being manufacturers of three phase step-down transformers, we create and provide unique designs and formats to meet our clients' needs. Additionally, we provide custom voltages and power ratings that comply with standards.
Know About 3 Phase Step Down Transformer:
A three-phase step-down transformer is an electrical device that converts three-phase power into single-phase power. This system consists of three outputs each with distinct phases. These transformers are utilized in sectors with different voltages and currents. They are well-known for their excellent power factor, affordability, and outstanding efficiency.
Types of 3 Phase Step Down Transformer:
As leading 3 Phase Step-down transformer suppliers in UAE we offer different types of it for various applications.
- Dry-Type Three-Phase Step Down Transformers: They provide a
secure and dependable option for voltage conversion without employing oil as a
cooling agent. These transformers use air or another insulating gas, such as
nitrogen, for cooling purposes, which makes them eco-friendly and decreases the
potential fire risks linked to oil-filled transformers. They are perfect for
indoor setups and areas where safety is a key concern, like hospitals, schools,
and commercial structures. Dry-type transformers generally use windings
impregnated with epoxy resin or varnish, which offer outstanding insulation and
mechanical durability. They need very little upkeep compared to oil-filled
transformers, removing the necessity for oil testing and changing.
- Delta-Delta (Δ-Δ) Connection 3 Phase Step Down Transformer:
Both the primary and secondary windings in this circuit use the delta (mesh)
arrangement. The delta-delta type achieves outstanding unbalanced load
management without requiring a neutral connection. As a result, this connection
shows limitations in managing harmonic currents and typically serves
distribution functions with lesser frequency than alternative transformer types.
Certain applications requiring a reference at the neutral cannot be properly
executed due to the absence of this point. Delta-delta transformers serve
industrial applications because they handle phase shift problems without
complications.
- Delta-Star (Δ-Y) Connection 3 Phase Step Down Transformer: The
distribution systems utilize this form of step-down transformer as their most
commonly deployed configuration. The delta configuration of the primary winding
pairs with the secondary winding's star (wye) setup. Circuits of secondary stars
include an important neutral reference point for powering single-phase
electrical loads. Through this connection, systems achieve better voltage
balance and provide a ground fault detection pathway. Delta-star transformers
are commonly utilized to reduce the voltage from the distribution level to the
consumer level.
- Star-Star (Y-Y) Connection 3 Phase Step Down Transformer: In
this arrangement, the primary and secondary windings are both linked in a star
format. Although easier to build, this type may face problems with voltage
instability, especially with unbalanced loads. It is also vulnerable to third
harmonic currents. Star-star configurations are less frequent for distribution
transformers in comparison to delta-star. They may be employed in particular
scenarios where the drawbacks are alleviated or are less significant.
- Star-Delta (Y-Δ) Configuration 3 Phase Step Down Transformer:
In this setup, the primary winding is connected in a star arrangement while the
secondary is in a delta configuration. This setup is rarer for step-down
transformers within distribution networks. It is frequently found in step-up
applications at power generation facilities. The delta configuration on the
secondary side does not offer a neutral. This variant is suitable for situations
where a phase shift is necessary or a delta configuration is required for the
load.
Technical Specifications of 3 Phase Step Down Transformer:
Being 3 phase step down transformer manufacturers in UAE, Our products are equipped with various advanced specifications, here we added a technical sheet containing specifications for each type as given below.
Specifications |
Dry Type |
Delta-Delta (Δ-Δ) Connection |
Delta-Star (Δ-Y) Connection |
Star-Star (Y-Y) Connection |
Star-Delta (Y-Δ) Configuration |
Voltage (Primary) |
415 V, 6.6 kV, 11 kV, 22 kV, 33 kV |
11 kV, 33 kV |
11 kV, 33 kV |
11 kV, 33 kV, 66 kV |
11 kV, 33 kV, 66Kv |
Voltage (Secondary) |
415 V, 230 V, 120/240 V |
415 V, 230 V |
415 V, 230 V |
415 V, 230 V, 120/240 V |
415 V, 230 V |
Phase |
Three |
Three |
Three |
Three |
Three |
Power |
10 kVA - 5 MVA |
100 kVA - 5 MVA, Medium |
500 kVA - 20 MVA, High |
50 kVA - 2 MVA, Medium |
100 kVA - 5 MVA, Medium |
Efficiency |
97 - 99% |
98-99% |
98-99.5% |
97-99% |
98-99% |
Frequency |
50/60 HZ |
50 Hz / 60 Hz |
50 Hz / 60 Hz |
50 Hz / 60 Hz |
50 Hz / 60 Hz |
No Load Loss |
NA |
500 W - 2 kW |
1 kW - 5 kW |
400 W - 1.5 kW |
500 W - 2 kW |
Load Loss |
- |
5 kW - 20 kW |
10 kW - 40 kW |
4 kW - 15 kW |
5 kW - 20 kW |
Winding Configuration |
NA |
Delta-Delta |
Delta-Star |
Star-Star |
Star-Delta |
Brand |
Sahara Transformers |
Sahara Transformers |
Sahara Transformers |
Sahara Transformers |
Sahara Transformers |
Features of 3 Phase Step Down Transformer:
As a leading three phase step down transformer manufacturers in UAE and providing it with the following features, the following are the types of 3 phase step down manufacturers in UAE.
- Voltage Reduction: This system exists to convert high-voltage
transmission or distribution levels into proper voltage supports for
residential, industrial, and commercial settings. Different voltage levels
between input and output are controlled through coil turn ratio operations.
- Three-Phase Power: They process three-phase power systems which
constitute standard power distribution for industrial and commercial operations
to distribute energy with efficiency and balance.
- Different Winding Configurations: Multiple winding setups such
as Delta-Delta, Delta-Star, Star-Star, and Star-Delta exist to fulfill
specialized application targets including when a neutral connection is needed.
- High Efficiency: The voltage conversion process remains
efficient because well-designed transformers achieve an efficiency rate greater
than 98%.
- Cooling Systems: During operation, the equipment can utilize
either oil-immersed systems or dry-type techniques to dissipate heat production
for continued safe and dependable operation.
Benefits of 3 Phase Step Down Transformer:
As 3 Phase step down transformer suppliers in UAE, here are some benefits of it.
- Insulation: They employ top-notch insulation substances (oil, paper, epoxy) to avoid electrical failures and guarantee enduring reliability.
- Safety Devices: They commonly have safety devices (fuses, relays) to protect against overloads, short circuits, and various faults.
- Sturdy Design: They are designed to endure environmental factors and offer years of dependable performance with less maintenance.
- Compact Design: A single three-phase transformer occupies less space and is more compact than using three single-phase transformers.
- Economical:They tend to be more economical compared to utilizing several single-phase transformers for the equivalent power capacity.
Applications of 3-Phase Step-Down Transformer:
- Heavy Machinery
- Manufacturing
- Welding Equipment
- Solar and Wind Power
- Lighting System
- Power Generation Distribution
Being 3 Phase Step Down Transformer manufacturers in UAE and suppliers in UAE, Transformers provides top-notch products promptly to our customers at competitive rates, not just in the areas where we operate directly, but also in regions where we collaborate with our growth partners. We are providing innovative technology services and solutions at an affordable cost.