Single Phase Overhead Distribution Pole Mounted Transformer - China Suppliers and Factory for Voltage 2.5-34.5kV
The Farady overhead transformer may be used alone for the supply of a single phase load or as one of three units in a bank for the supply of a three phase load.
General
The unit may be direct mounted to a wooden or concrete pole, or cluster mounted on a pole for three phase use. Our single phase overhead distribution transformer is commonly used in various places including rural areas, remote regions and scattered villages to provide high quality power supply for daily lighting, agricultural production and industrial plants. Aside from these, it is also suitable for the energy saving projects for railway and urban grid.
Product Standards
●IEEE Std C57.12.00™-2000 standard – General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers.
●IEEE Std C57.12.20™-2005 standard – Overhead-Type Distribution Transformers, 500kVA and Smaller.
●IEEE Std C57.12.31™-2010 standard – Pole Mounted Equipment – Enclosure Integrity.
●IEEE Std C57.12.35™-1996 standard – Bar Coding for Distribution Transformers.
●IEEE Std C57.12.90™-2006 standard – Test Code for Liquid-Immersed Distribution Transformers.
●IEEE Std C57.12.91™-2001 standard – Guide for Loading Mineral-Oil-Immersed Transformers.
●NEMA TR 1-1993 (R2000) Elevated Temperatures.
●(ASTM) American Society for Testing Materials.
Main Features
Type: Conventional or CSP
Indoor/Outdoor Suitable
Ambient: -25℃ to +40℃
Temp Rise: 55℃ or 65℃
Core: CRGO or Amorphous
Efficiency: DOE 2016 / NEMA TP1
Material: CU or AL
Frequency: 50HZ / 60HZ
Capacity: 5kVA to 333kVA
Quality Assurance
Farady Quality assurance is an integral part of the process. All electrical testing is per IEEE standards. Quality of processed parts and subassemblies are the responsibility of the production personnel. Regular quality inspections and spot checking are conducted to make sure that good and consistent quality is achieved and maintained.
Routine Tests
●In-process Core Loss Test
●Transformer Turns Ratio Test
●Winding Resistance Test
●Polarity and Phase Displacement Test
●Insulation Power Factor Test
●Liquid Insulation DBV Test
●No Load Loss & Excitation Test
●Impedance Voltage & Load Loss Test
●Voltage Ratio Test
●Applied Potential Test
●Induced Potential Test
Type Tests
●Temperature Rise Test
●Basic Impulse Level (BIL)
●Sound Level test
Production
Frequently Asked Questions
Q1: Can Farady single-phase overhead transformers be used for three-phase power supply?
A: Yes, while they can be used individually for single-phase loads, they can also be cluster-mounted in a bank of three units to provide a three-phase power supply.
Q2: What are the typical applications for these pole-mounted transformers?
A: They are commonly used in rural areas, remote regions, and scattered villages for daily lighting and agricultural production. They are also suitable for industrial plants, urban grids, and railway energy-saving projects.
Q3: Which international standards do Farady overhead transformers comply with?
A: Our transformers are designed and tested according to IEEE Std C57.12.00, C57.12.20, C57.12.31, C57.12.90, and NEMA TR 1 standards, ensuring global compatibility and safety.
Q4: What capacity range is available for the single-phase overhead series?
A: We offer a wide range of capacities from 5kVA up to 333kVA to meet various distribution requirements.
Q5: What core materials and winding materials are used?
A: The cores can be made of CRGO (Cold Rolled Grain Oriented) steel or Amorphous Core for higher efficiency. Winding materials are available in both Copper (CU) and Aluminum (AL).
Q6: What quality tests are performed on each unit?
A: Each transformer undergoes rigorous routine tests including Core Loss, Turns Ratio, Winding Resistance, Polarity, Insulation DBV, and Induced Potential tests, along with specialized Type Tests like BIL and Sound Level testing.