Distribution Transformer

An electrical grid's final step-down in voltage occurs through a Distribution Transformer. This critical component takes the higher primary voltage from distribution lines and transforms it to the lower, usable voltage levels required by homes, commercial buildings, and industrial facilities. Reliable and efficient distribution transformers are foundational to a stable power supply. Our range includes specialized types like the On Load Regulator Transformer, which maintains consistent output voltage despite fluctuating load conditions, and the versatile Pole Mounted Transformer, a space-saving solution for overhead distribution networks. For applications demanding high durability and efficient cooling, our robust Oil Immersed Transformer is engineered for longevity. While a Distribution Transformer handles the final voltage delivery, a larger Power Transformer is typically used in transmission substations for bulk power transfer at much higher voltages.

The DTR-500 Series Distribution Transformer exemplifies our commitment to engineering excellence for modern power networks. Designed for optimal performance in diverse environments, this transformer series prioritizes energy efficiency, mechanical strength, and operational safety. Below are the key technical parameters that define the DTR-500 Series. For specific models, please refer to the detailed specification tables.

Core Design & Construction Features

• Core Material: High-grade, grain-oriented silicon steel for minimal no-load losses.
• Winding Conductors: Electrolytic copper or aluminum, chosen based on application-specific requirements for conductivity and cost-efficiency.
• Insulation System: Class H insulation materials, capable of withstanding high thermal stresses for extended operational life.
• Cooling Method: ONAN (Oil Natural Air Natural) for standard models; alternative cooling configurations (ONAF, OFAF) available.
• Tank Construction: Corrugated or radiator-finned steel tank for effective heat dissipation and robust outdoor protection.
• Conservator & Buchholz Relay: Standard fittings to accommodate oil expansion and provide vital gas-actuated fault protection.

DTR-500 Series Standard Technical Specifications

Optional Features & Accessories

• Integrated Low-Voltage (LV) circuit breaker compartment.
• Surge arresters (line and neutral) for enhanced lightning protection.
• Remote temperature monitoring and alarm contacts (WTI, OTI).
• Pressure relief device with alarm and trip signals.
• Dehumidifying breather (silica gel type) to maintain oil purity.
• Custom color painting as per utility specifications.
• Anti-vandalism measures and tamper-proof locks.