Ultra-Low Energy Losses
Utilizing laser-scribed CRGO silicon steel cores significantly reduces no-load and load losses, complying with international eco-design energy performance guidelines.
KROS Electric Co., Ltd. designs and manufactures high-performance distribution transformers engineered to satisfy the rigorous electrical infrastructure needs of international procurement managers, electrical contractors, and utility operators. Certified by the Bureau of Indian Standards (BIS) and built in alignment with international standards such as IEC 60076 and ISO 9001:2015, our units guarantee optimal power delivery, exceptional short-circuit endurance, and minimal operational energy losses.
Whether serving heavy industrial complexes, urban power distribution grids, or remote commercial facilities, our distribution transformers deliver long-term operational cost savings, structural resilience, and stable voltage output under extreme ambient conditions.
Each unit manufactured by KROS Electric Co., Ltd. undergoes rigorous multi-stage quality control to guarantee strict adherence to global electrical benchmarks.
| Technical Parameter | Standard Specification / Capability |
|---|---|
| Power Rating (kVA Capacity) | 100 kVA to 2500 kVA (Custom ratings available upon engineering request) |
| Voltage Class / Primary Voltage | 11 kV, 22 kV, 33 kV (Custom steps up to 36 kV) |
| Secondary Voltage Output | 415V / 433V (Line-to-Line), customizable for target regional grids |
| Frequency & Phase | 50 Hz / 60 Hz | 3-Phase, 4-Wire Configuration |
| Core Material | High-Permeability Cold-Rolled Grain-Oriented (CRGO) Silicon Steel |
| Winding Material | 100% High-Purity Electrolytic Grade Copper / Electrical Grade Aluminum |
| Cooling Medium & Type | Oil Natural Air Natural (ONAN) / Oil Natural Air Forced (ONAF) |
| Vector Group | Dyn11, Dyn5, or custom engineered vector connections |
| Tap Changer | Off-Circuit Tap Changer (OCTC) / On-Load Tap Changer (OLTC) with RTCC |
| Insulation & Temperature Rise | Class A Insulation | 50°C / 55°C Oil/Winding Temperature Rise Limit |
| Standard Compliance | BIS IS 1180 (Part 1), IEC 60076, ISO 9001:2015 Quality Management Systems |
Designed with decades of power engineering mastery, our distribution transformers offer high durability and minimal lifecycle cost.
Utilizing laser-scribed CRGO silicon steel cores significantly reduces no-load and load losses, complying with international eco-design energy performance guidelines.
Reinforced mechanical clamping structures and robust coil insulation withstand high dynamic forces during line fault conditions, ensuring continuous power availability.
Optimized cooling ducts allow efficient transformer oil circulation, preserving insulation integrity and prolonging transformer lifespan even in tropical ambient heat.
Heavy-gauge steel tanks treated with shot-blasting, anti-rust primers, and weather-resistant polyurethane coating protect units operating in harsh offshore or industrial zones.
Every transformer undergoes routine testing including insulation resistance, winding resistance, voltage ratio, vector group verification, and dielectric breakdown tests prior to dispatch.
We provide seaworthy export packaging, complete technical documentation, and international shipping coordination for overseas EPC contractors and utility clients.
Our robust distribution transformers deliver uninterrupted electricity across diverse market sectors.




Need tailored distribution transformers for your next infrastructure or industrial project? Contact the engineering specialists at KROS Electric Co., Ltd. for prompt technical assistance, customized vector configurations, and competitive B2B export pricing.
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