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ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer with 2500 kVA Capacity and ONAN Cooling
ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer with 2500 kVA Capacity and ONAN Cooling
ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer with 2500 kVA Capacity and ONAN Cooling
ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer with 2500 kVA Capacity and ONAN Cooling
Specifications
Brand Name :
TIANAN Electric
Model Number :
YBT13（ZBW）
Certification :
GB17467-2010， IEC62271
Place of Origin :
CHINA
MOQ :
1set
Price :
Pending
Payment Terms :
L/C,T/T,D/P,D/A
Supply Ability :
2000 Sets Per Year
Delivery Time :
45 working days
Packaging Details :
Pallet
Rated Voltage :
13.8/0.4 kV
Rated capacity :
2500 kVA
Tapping range :
±2x2.5%
Rated current :
104.6/3608.5 A
Rated frequency :
60 Hz
Insulation class :
A
Standard :
IEEE C57.12
Cooling method :
ONAN
Description
ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer
Product Overview

The ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer is a three-phase oil-immersed pad-mounted transformer designed for outdoor installation on a concrete pad. It has a rated capacity of 2500 kVA, voltage ratings of 13.8 kV / 0.4 kV, and a frequency of 60 Hz. It is suitable for outdoor power distribution applications in 60 Hz power systems, particularly in North American markets.

Key Test Data
Test Item Test Result Standard Requirement
Insulation Resistance >2.5 GΩ --
Voltage Ratio Error < ±0.5% ≤ ±0.5%
Winding Resistance Unbalance (HV side) 0.29% ≤2%
No-Load Loss 270 W --
Impedance Voltage 4.70% --
Load Loss 19828 W --
Transformer Oil Breakdown Voltage 55.2 kV --
The above data is based on IEEE C57.12 standard testing at an ambient temperature of 15°C. Test date: March 31, 2026.
Frequently Asked Questions
Q1: What is a pad-mounted transformer?

A: A pad-mounted transformer is an American-style outdoor distribution transformer installed on a concrete pad at ground level. It is not buried underground. It features high protection等级, a low-profile design, and a walkable top surface.

Q2: What are the rated capacity and voltage of this transformer?

A: The rated capacity is 2500 kVA, with a high voltage side of 13.8 kV and a low voltage side of 0.4 kV, making it suitable for medium-capacity distribution systems.

Q3: What is the cooling method?

A: The cooling method is ONAN (Oil Natural Air Natural), which relies on natural convection of the oil for heat dissipation. No additional fans or pumps are required, resulting in quiet operation and simple maintenance.

Q4: What are the typical applications for this transformer?

A: It is widely used in urban distribution networks, industrial parks, commercial complexes, photovoltaic power plants, wind farms, airports, ports, and residential communities where outdoor pad-mounted installation is required.

Q5: Has this transformer passed relevant standards?

A: Yes. The transformer has been tested in accordance with the IEEE C57.12 standard. All test items including insulation resistance, voltage ratio, winding resistance, no-load loss, withstand voltage, and oil quality have met the requirements. It comes with a Certificate of Conformity.

Q6: What are the insulation class and frequency?

A: The insulation class is Class A, and the rated frequency is 60 Hz, specifically designed for 60 Hz power systems.

Q7: What are the total weight and oil weight of the transformer?

A: The total weight is 5618 kg, including 1310 kg of transformer oil (oil grade: 25#).

Q8: Is the voltage adjustable?

A: Yes. The tapping range is ± 2×2.5%, providing 5 tap positions to flexibly accommodate grid voltage fluctuations.

Product Advantages Summary
  • High efficiency, low loss: No-load loss is only 270 W
  • Safe and reliable: Insulation resistance >2.5 GΩ, oil breakdown voltage 55.2 kV
  • Strong adaptability: 60 Hz, 13.8 kV / 0.4 kV, suitable for North American markets
  • Flexible installation: Outdoor pad-mounted design, placed on concrete foundation, no excavation required
  • Easy maintenance: ONAN cooling, no moving parts
Product tags

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ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer with 2500 kVA Capacity and ONAN Cooling

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Product Detail
Brand Name :
TIANAN Electric
Model Number :
YBT13（ZBW）
Certification :
GB17467-2010， IEC62271
Place of Origin :
CHINA
MOQ :
1set
Price :
Pending
Contact Supplier
ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer with 2500 kVA Capacity and ONAN Cooling
ZGSL-H-2500/13.8-0.4 American Style Pad-Mounted Transformer with 2500 kVA Capacity and ONAN Cooling

Ningbo Tianan (Group) Co.,Ltd.

Verified Supplier
9 Years
zhejiang, ningbo
Since 1969
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
Compact Transformer Substation, Mobile Transformer Substation, Cast Resin Dry Type Transformer
Total Annual :
250000000-300000000
Employee Number :
3000~3500
Certification Level :
Verified Supplier
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