3 Phase Step Down Transformer

3 Phase Step Down Transformer Manufacturers in India, Suppliers in India | Sahara Transformers

3 Phase Step Down Transformer Manufacturers in India, Suppliers in India

Sahara Transformers is the leading 3 Phase Step Down Transformer manufacturers in India and suppliers in India, offering CN & UL certified transformers for various industrial and electric applications. Our offered transformers provide high performance and even give the best results at the end.

What is 3 Phase Step Down Transformer?

A Three-Phase Step-down or 3 PH step down transformer is an electrical apparatus that transforms three-phase energy into single-phase energy. It consists of three outputs with varying phases. These three phase transformers are utilized in sectors where the voltage and current fluctuate. They are recognized for their great efficiency, low expense, and high-power factor.

Types of 3 Phase Step Down Transformer:

As 3 Phase step-down transformer suppliers in India, we offer different types of transformers for various applications.

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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 PH step-down transformer manufacturers in India, our products are equipped with various advanced features; here we have added a technical sheet for more details.

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 3 phase step-down transformer suppliers in India, the following are the features of 3 Phase Step-down Transformer in India.

  1. 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.
  2. 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.
  3. 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.
  4. High Efficiency: The voltage conversion process remains efficient because well-designed transformers achieve an efficiency rate greater than 98%.
  5. 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 Using Our 3 Phase Step Down Transformer in India:

As 3 Phase step down transformer manufacturers in India, here are some benefits of it.

  1. Insulation: They employ top-notch insulation substances (oil, paper, epoxy) to avoid electrical failures and guarantee enduring reliability.
  2. Safety Devices: They commonly have safety devices (fuses, relays) to protect against overloads, short circuits, and various faults.
  3. Sturdy Design: They are designed to endure environmental factors and offer years of dependable performance with less maintenance.
  4. Compact Design: A single three-phase transformer occupies less space and is more compact than using three single-phase transformers.
  5. 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:

As 3 PH step-down transformer suppliers in India, the following are the applications of 3 PH step-down Transformer in India

  1. Heavy Machinery
  2. Manufacturing
  3. Welding Equipment
  4. Solar and Wind Power
  5. Lighting System
  6. Power Generation Distribution

Being 3 Phase Step Down Transformer manufacturers in India and suppliers in India, Sahara 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. Get innovative technology services and solutions at an affordable cost.


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