Power Transformer About
Power Distribution Transformer
A Power Distribution Transformer is an essential electrical device designed to efficiently step down high-voltage electricity from transmission lines to a lower, usable voltage for residential, commercial, or industrial applications. It plays a crucial role in ensuring reliable and safe power distribution across various facilities.
Our transformers are manufactured with premium-grade materials, robust design, and strict quality standards, ensuring high efficiency, minimal losses, and long service life. Available in multiple capacities, they are suitable for indoor and outdoor installations depending on the project requirements.
Technical Features:
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Ratings: From Upto 5000 kVA
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Voltage Class: 11kV / 22kV / 33kV to 433V or as per requirement
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Phases: 3 Phase
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Cooling Type: ONAN (Oil Natural Air Natural) / AN (Air Natural)
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Vector Group: Dyn11 / Yyn0 / Others on request
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Frequency: 50 Hz / 60 Hz
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Standards: IS 1180, IEC, BIS Certified
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Efficiency: As per Star Rating norms (BEE)
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Protection: Buchholz Relay, PRV, WTI, OTI, Silica Gel Breather
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Type: Oil-Immersed / Dry Type Cast Resin
Key Benefits:
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High Efficiency with Low Power Losses
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Durable and Robust Construction
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Low Maintenance with Long Service Life
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Reliable Operation in Harsh Environmental Conditions
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Designed as per Customer and Utility Specifications
Common FAQs About Power Distribution Transformers
Q1: What is the purpose of a distribution transformer?
A distribution transformer steps down high-voltage electricity from transmission lines to a lower voltage suitable for homes, buildings, and industries.
Q2: Whats the difference between a distribution transformer and a power transformer?
A power transformer is used for transmission at higher voltage levels (typically above 33kV), whereas a distribution transformer is used to supply the end-user at lower voltages (e.g., 433V).
Q3: What is the typical lifespan of a distribution transformer?
With proper maintenance, a transformer can last 20 to 30 years or more.
Q4: What cooling methods are available?
Q5: What protections are provided?
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Buchholz Relay for gas detection
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Pressure Relief Valve (PRV)
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Temperature Indicators (OTI/WTI)
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Silica Gel Breather for moisture control
Q6: Are your transformers compliant with BIS standards?
Yes, our transformers are BIS certified and comply with IS 1180 (Part 1) 2014 standards, along with BEE Star Ratings where applicable.
Q7: Can transformers be customized?
Absolutely. We offer transformers based on your voltage requirements, capacity, cooling type, and protection needs.
Q8: Do you provide installation and after-sales service?
Yes, we provide on-site installation support, commissioning, and after-sales service, ensuring smooth operation and maintenance guidance.
Applications:
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Industries
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Commercial Buildings
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Infrastructure Projects
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Residential Societies
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Utility Substations
Availability:
Advanced CRGO Core and Efficient CoolingUtilizing CRGO silicon steel in the laminated core ensures minimal losses and maximum efficiency. The robust ONAN (Oil Natural Air Natural) cooling system, aided by extensive radiator panels, enables efficient heat dissipation, supporting reliable operation within an ambient temperature range of -10C to +45C and up to 95% humidity.
Flexible Installation and Easy MaintenanceWith mobile mounting provided by robust wheels, this transformer is easy to relocate as operational needs change. Maintenance is streamlined through its removable top cover, accessible analog gauges, powder-coated surface, and high-quality porcelain bushings, facilitating safe, effective servicing.
Rigorously Tested for Safety and PerformanceEvery unit undergoes comprehensive routine and type tests in accordance with IS 1180/IEC 60076/BIS standards, ensuring safe and reliable functionality. Enhanced safety features, including Buchholz Relay, Conservator, LV & HV bushings, and a breather, deliver lasting peace of mind in demanding electrical environments.
FAQ's of Power Transformer:
Q: How do I transport and install the wheel/mobile-mounted power transformer?
A: The transformer's rolling wheels provide easy mobility for on-site adjustments or relocation. For installation, ensure the unit is positioned on a stable, level outdoor floor. Secure all mechanical and electrical connections as per the supplied manual and align with site safety protocols.
Q: What is the benefit of a CRGO laminated core in this power transformer?
A: A CRGO (Cold-Rolled Grain-Oriented) silicon steel core minimizes core losses and enhances energy efficiency. This results in reduced heat generation and lower operational costs, contributing to the transformer's long-term reliability and performance.
Q: When is routine maintenance required for this transformer?
A: Routine maintenance, typically recommended every six months to a year, should include checks of insulating oil level and quality, bushings, radiator panels, and mechanical integrity. The removable top cover and analog display enable convenient inspection and servicing.
Q: Where can this transformer be used effectively?
A: It is ideal for outdoor power distribution, industrial facilities, and utility substations. Its IP23/IP24 protection, cooling features, and humidity tolerance up to 95% RH make it suitable for diverse climates and harsh environments.
Q: How does the cooling system work, and why is it important?
A: The transformer uses an ONAN (Oil Natural Air Natural) cooling system, which relies on mineral oil to absorb heat and radiators to dissipate it naturally to the air. This method ensures efficient heat removal, preserving transformer life and safe operation even in demanding conditions.
Q: What safety and monitoring features are included in the transformer?
A: Key features include a conservator for oil expansion, a Buchholz relay for protection against internal faults, porcelain bushings, LV & HV bushings, a breather, and analog gauges for monitoring temperature and oil level, all supporting reliable, continuous operation.
Q: What are the main advantages of using this power transformer in a distribution system?
A: Its energy-efficient design, robust construction, high reliability, and easy maintenance access reduce downtime and operating costs. The transformer's regulation, advanced protection systems, and compliance with international standards ensure optimal performance over a range of applications.