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75kVA Three-Phase to Single-Phase Dry-Type VPI Transformer 240V to 120V Class C Insulation
As a core equipment dedicated to efficient power distribution, Winley Electric SG-75KVA Three-Phase Dry-Type Transformer features precise parameter design, high insulation performance, and stable operation. It provides a reliable three-phase power conversion solution for industrial power distribution, commercial power supply, and other scenarios, making it an optimal choice for connecting three-phase power grids and single-phase loads.
The Function of Three-Phase to Single-Phase Transformers
Three-phase to single-phase transformers, through special winding designs, efficiently convert three-phase AC power into electrical energy suitable for single-phase loads while balancing the current of the three-phase power grid, solving the problem of mismatched power supply systems and ensuring the stable operation of loads and the safety of the power grid.
Technical Specifications
Model
SG-75KVA
Product Name
Three-Phase Dry-Type Transformer
Rated Power
75KVA
Input Voltage
240Y/139V (with 2×2.5% FCAN and 6×2.5% FCBN voltage regulation taps)
High-Level Insulation Protection: Adopting Class C insulation standard, its insulation performance is far superior to conventional grades. Combined with strict withstand voltage tests—primary to secondary, primary to ground, and secondary to ground can all withstand 2500V/60S voltage; insulation resistance is all ＞100MΩ. The induced withstand voltage test under 125Hz double voltage meets the standard, effectively resisting the impact of humid, dusty, and other environments, and eliminating the risk of electric leakage.
Stable Heat Dissipation and Temperature Rise Control: The natural air cooling design requires no additional fans, resulting in low operating noise. Even under high-load conditions, the temperature rise is strictly controlled below 150℃, which can maintain stable operation of windings and extend the service life of the equipment.
Reliable Grounding Design: The grounding resistance is ＜100mΩ (test current 25A), and the grounding performance fully complies with safety specifications. This further enhances the operational safety of the equipment, making it suitable for densely populated areas or places with high safety requirements.
Core Advantages of the Product
Strong Adaptability: The multi-tap voltage regulation design for input voltage (2×2.5% FCAN + 6×2.5% FCBN) can flexibly adapt to voltage fluctuations of power grids in different regions; the output 120V/240V single-phase power accurately matches the needs of common loads such as commercial lighting and industrial single-phase equipment, without the need for additional voltage regulation devices.
Outstanding Durability: The full-aluminum windings combine good electrical conductivity and lightweight advantages. Cooperated with the high temperature resistance and anti-aging properties of Class C insulation, it reduces daily maintenance needs and lowers the long-term use cost.
Safety and Compliance: Various safety indicators such as withstand voltage, insulation resistance, and grounding performance all comply with industry standards for power distribution equipment. There are no safety hazards such as electric leakage or overheating, so it can be safely used in indoor commercial areas, industrial workshops, and other scenarios.
Applications
Winley Electric SG-75KVA Three-Phase Dry-Type Transformer is particularly suitable for scenarios with high requirements for power supply stability and safety, such as:
Small and medium-sized industrial workshops: Providing stable power supply for single-phase machine tools, welding machines, electroplating equipment, etc.;
Commercial complexes: Supporting the operation of single-phase loads such as lighting systems, central air conditioners, and elevators;
Data centers: Supplying reliable power for auxiliary facilities (e.g., room lighting, monitoring equipment);
Municipal scenarios: Adapting to the single-phase power needs of community power distribution and small public buildings, solving the connection problem between three-phase power grids and single-phase loads.
Product Specifications
Model (kVA)
Primary Voltage
Secondary Voltage
Coupling Group
Shape Dimension
Mounting Dimension
Box Dimension
SG-10KVA
660/400/380/200
380/220/110/36
Yyn0/Y/d/D/y/D/d
360×180×305
215×140
450×360×480
SG-15KVA
660/400/380/200
380/220/110/36
Yyn0/Y/d/D/y/D/d
360×200×335
215×155
450×360×480
SG-20KVA
660/400/380/200
380/220/110/36
Yyn0/Y/d/D/y/D/d
420×210×350
250×170
490×400×540
SG-30KVA
660/400/380/200
380/220/110/36
Yyn0/Y/d/D/y/D/d
420×230×380
250×190
490×400×540
SG-50KVA
660/400/380/200
380/220/110/36
Yyn0/Y/d/D/y/D/d
680×350×550
420×220
800×510×840
SG-80KVA
660/400/380/200
380/220/110/36
Yyn0/Y/d/D/y/D/d
750×400×620
480×250
850×510×840
SG-100KVA
660/400/380/200
380/220/110/36
Yyn0/Y/d/D/y/D/d
780×420×650
500×250
900×550×890
Production Process
Frequently Asked Questions
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller
Year Established:
2007
Total Annual:
$45M-$60M
Employee Number:
150~210
Ecer Certification：
Verified Supplier
R&D and production capabilities
Winley Electric boasts a team of dozens of experienced senior engineers who are well-versed in transformer standards of different countries including ANSI, IEEE, CSA, DOE2016, NEMA and IEC60076, and who can tailor cost-effective transformer solutions according to... R&D and production capabilities
Winley Electric boasts a team of dozens of experienced senior engineers who are well-versed in transformer standards of different countries including ANSI, IEEE, CSA, DOE2016, NEMA and IEC60076, and who can tailor cost-effective transformer solutions according to...
