ZGS11 Three Phase Pad Mounted Transformer


Model: ZGS11

Installation: Outdoor

Rated Power: 75kVA to 2000kVA

Primary Voltage: 12470Grdy/7200V

Secondary Voltage: 480Y/277V

Rated Frequency: 60Hz

Cooling Method: ONAN (Oil Natural Air Natural)

Transformer Oil: Mineral oil (PCB free)

Temperature Rise Limit:

Top Oil: 55℃

Winding: 65℃

Hot Spot: 80℃

Efficiency: Complies with DOE 2016 standards

Sound Level: 55dB

Tank Type: Corrugated tank / Galvanized steel

Standards: IEEE Std C57.12.00; IEEE Std C57.12.34; DOE 2016


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    High Performance and Safety Features

    The ZGS11 model by ANHUI GREEN ENERGY ELECTRIC CO., LTD is designed for optimal performance in outdoor settings. It supports a substantial power range from 75kVA to 2000kVA, catering to diverse operational needs. The transformer operates effectively within a primary voltage of 12470Grdy/7200V and a secondary voltage of 480Y/277V, ensuring versatility in application. Safety is paramount with the inclusion of PCB-free mineral oil and a cooling method of ONAN, which stands for Oil Natural Air Natural, enhancing the unit's operational reliability and efficiency under varying environmental conditions. Temperature regulations are strictly managed with limits set at 55℃ for top oil, 65℃ for winding, and a critical hot spot threshold at 80℃.

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    Compliance and Environmental Considerations

    Adhering to rigorous standards, the ZGS11 transformer meets the IEEE Std C57.12.00, IEEE Std C57.12.34, and DOE 2016 guidelines, which underscores its compliance with current electrical safety and efficiency protocols. The unit is designed to minimize environmental impact, featuring a low sound level of 55dB and housed in a durable, corrosion-resistant galvanized steel or corrugated tank. Additionally, the transformer is colored in Munsell Green, integrating aesthetically into its surroundings while maintaining high visibility for safety. This model also boasts a comprehensive warranty of 2 years, ensuring long-term reliability and customer satisfaction.

Specification Category Specification Detail
Country of Origin China
Model ZGS11
Type Dead front Loop feed
Installation Outdoor
Ambient Temperature -10℃ to 40℃
Altitude Less than 1500m
Rated Power 75kVA to 2000kVA
Primary Voltage 12470Grdy/7200V
Secondary Voltage 480Y/277V
Rated Frequency 60Hz
Number of Phase 3
Number of Windings 2
Cooling Method ONAN
Transformer Oil Mineral oil (PCB free)
Vector Group Yyn0
Impedance 4% to 5.75%
Temperature Rise Limit – Top Oil: 55℃
– Winding: 65℃
– Hot Spot: 80℃
Efficiency and Loss Efficiency % @DOE 2016
Winding Material Aluminum
Core Material Grain oriented silicon steel
Over-current Protection Device – Bay-o-net Fuse: 165A
– ELSP: 165A
Tap Changer Off-load
HV Tapping Range ±2*2.5%
High Voltage – Insulation Class: A
– BIL: 95kV
Low Voltage – Insulation Class: A
– BIL: 30kV
Sound Level 55dB
Tank Corrugated tank / Galvanized steel
Colors Munsell Green
Standards IEEE Std C57.12.00; IEEE Std C57.12.34; DOE 2016
Accessories Included Lifting Lug, Hinged Door, Parking Stand Bracket, and others
Warranty 2 years



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