The Three-phase transformer serves business and industrial operations by processing three-phase AC power. Our status as Three-phase transformer manufacturers allows us to follow stringent quality control protocols and work with leading materials coupled with proven manufacturing practices. With the assistance of our team, we also focus on optimizing this transformer design to improve its efficiency. Our produced transformers are available in different types and offer several specifications and features. Let’s explore these types and their specifications in detail as below!
Types of Three Phase Transformer:
As 3 PH transformer manufacturers in India, we supply different types of it to fulfil the wide range of requirements of our customers.
- Dry-Type Three Phase Transformers: Dry-type three-phase transformers present both safer operation and lower environmental impact in comparison to oil-filled transformers. These transformers are ideal for usage in indoor premises which need to be protected securely, especially at locations such as healthcare facilities, educational buildings, and business sites. They include windings encased with epoxy resin or varnish that promote extreme insulation strength and enhance mechanical reliability. The different power ratings and voltage levels available in dry-type transformers make them suited for all types of applications which range from single machine operation to broad building-wide power distribution. Today's electrical systems utilize their compact structure and easy installation processes for their rising market popularity. It is specifically designed to divide primary (input) power from secondary (output) sections of a three-phase power network, removing the fire risks and environmental issues linked to oil. Made with epoxy resin or windings soaked in varnish, these transformers provide superior insulation alongside mechanical stability for installations inside secure locations, including hospitals. Multiple application requirements can be met with dry-type transformers which exist in different power capacities and voltage ranges to fulfill tasks from single power delivery to whole-building power distribution. Their small design and simple installation also enhance their popularity in contemporary electrical systems.
- Three Phase Isolation Transformer: It is specifically created to offer electrical separation between the primary (input) and secondary (output) circuits within a three-phase power system. This transformer construction protects devices and workers from voltage variations and prevents electrical disturbances while eliminating persistent ground connections. The core function of isolation transformers remains protection against cross-currents, though they also serve as voltage upgraders or downgrades. This transformer type stands central for applications demanding reliable interference-free power, such as protecting delicate industrial electronics and medical equipment alongside critical research equipment and audiovisual systems. Simple household devices require the essential safety features that 3-phase isolation transformers deliver along with their noise mitigation capabilities.
- Three Phase Step-Up Transformer: It plays a vital role in elevating voltage from the primary side to the secondary side within a three-phase power system. These transformers are generally used at power-generating facilities, where the voltage created by generators must be increased to a significantly higher level for effective transmission over extensive distances. By increasing the voltage, these transformers lower the current, reducing power losses throughout transmission. This enables the cost-efficient movement of significant quantities of energy over extensive distances. Step-up transformers are essential elements in the power grid, facilitating the effective transfer of electricity from power generation facilities to substations and eventually to users.
- Three Phase Step-Down Transformer: It serves a similarly crucial purpose in the reverse operation, lowering voltage. These transformers are commonly found in distribution networks, where the elevated voltage from transmission lines must be reduced to a level appropriate for use by residences, businesses, and industrial establishments. They reduce the voltage from the distribution level to the utilization level (for instance, 415V or 230V in numerous areas). Three-phase step-down transformers are crucial for delivering safe and functional electricity to consumers. They are frequently located in substations, commercial structures, and industrial facilities, guaranteeing that electricity is supplied at the correct voltage for various devices and appliances. Without step-down transformers, the high voltage employed for transmission would be excessively hazardous and unfeasible for regular use.
Technical specifications of Three Phase Transformer:
As Three Phase Transformer suppliers in India, our products are equipped with various advanced features; here we have added a technical sheet for more details.
Specifications |
Dry Type |
Three Phase Isolation |
Three or 3PH Step Up |
Three or 3PH Step Down |
Power Rating |
10 kVA - 5 MVA |
1 - 1000+ kVA |
1000 – 1000,000+ kVA |
50 - 20000+ kVA |
Voltage (Secondary) |
415 V, 230 V, 120/240 V |
415 V, 230 V, 120/240 V |
415 V, 230 V |
415 V, 230 V, 120/240 V |
Phase |
Three |
Three |
Three |
Three |
Efficiency |
97 - 99% |
95-98% |
98-99.5% |
97-99% |
Frequency |
50/60 HZ |
50 Hz / 60 Hz |
50 Hz / 60 Hz |
50 Hz / 60 Hz |
No Load Loss |
Varies |
500 W - 2 kW |
1 kW - 5 kW |
400 W - 1.5 kW |
Load Loss |
Varies with kVA |
5 kW - 20 kW |
10 kW - 40 kW |
4 kW - 15 kW |
Temperature Range |
80 to 105 °C |
80 to 105 °C |
80 to 105 °C |
80 to 105 °C |
Cooling Type |
AN, AF |
AN, AF |
ONAN, ONAF |
ONAN, ONAF |
Brand |
Sahara Transformers |
Sahara Transformers |
Sahara Transformers |
Sahara Transformers |
Key Features of Three Phase Transformer:
As three phase Transformer manufacturers in India, we supply transformers it with numerous features such as:
- Handling Three-Phase Power: Specifically engineered for three-phase alternating current (AC) power systems, which are the standard in industrial and commercial power distribution.
- Voltage Conversion: The devices efficiently adjust voltage levels between multiple power grid phases and equipment requirements by elevation or reduction.
- Winding Configurations: The available winding configurations (star-star, star-delta, delta-star, and delta-delta) enable different requirements by providing access to neutral connections for single-phase loads.
- Efficient Functioning: Three-phase transformers regularly operate with above 98% efficiency, which reduces power attenuation during voltage conversion.
Benefits of Using Our Three-Phase Transformer in India:
As 3 PH transformer suppliers in India, our transformers provide numerous benefits; the following are the benefits of three-phase transformer in India.
- Space Efficiency: A three-phase transformer requires less space than equivalent installations made of multiple single-phase transformers.
- Minimized Losses: Operational improvements through this transformation result in reduced power losses and lead to savings in power consumption together with decreased environmental impacts.
- High Voltage Regulation: The system preserves constant voltage outputs to meet device requirements for optimal performance levels.
Applications of Three Phase Transformer:
As 3 PH transformer manufacturers in India, the following are the applications of 3 PH transformer in India.
- Power Generation Systems
- Data and Communication Centers
- Residential Buildings
- Medical & Healthcare Facilities
- Renewable Energy Systems
Being 3 Phase Transformer manufacturers in India and suppliers in India, at Sahara Transformers, we continually aim to attain maximum customer satisfaction by enhancing our selection of transformers and addressing their various needs. Our focus is on integrating the newest technology to enhance the existing range. Due to these efforts, the customers are valued for their characteristics of dimensional precision, exceptional performance, robust build, minimal maintenance expense, simple setup, and resistance to corrosion. We deliver each product on time.