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.
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