1500 kva 11kv 22kv 33kv pad mount transformer with its multi-voltage adaptability, high reliability and compact design, has become the core equipment in the medium-voltage distribution field.
Introduction:
1500 kva 11kv 22kv 33kv pad mount transformer is a type of box-type substation. Its core feature is to integrate the transformer body, high-voltage load switch, fuse and other components in the same oil tank, and adopt an oil-immersed structure to achieve a fully sealed and fully insulated design.
Core Technical Parameters and Structural Design:
Basic Parameters and Voltage Adaptability
Capacity: 1500 kVA.
Voltage: High voltage 11 kV, 22 kV, and 33 kV. The tap changer supports ±5% or ±2 x 2.5% voltage regulation to accommodate different grid access requirements.
Cooling and Insulation: Oil-immersed, self-cooled (AN) is the primary design, with optional air cooling (AF) to enhance overload capacity. Mineral oil or environmentally friendly natural ester oil is used as the insulating oil.
Structural Innovation and Reliability
Fully Sealed Design: Corrugated oil tank or expansion radiator, maintenance-free, moisture-proof, and dust-proof, with an IP54 protection rating, resisting coastal salt spray corrosion.
Winding Material: High-voltage windings utilize high-permeability silicon steel sheets and oxygen-free copper conductors, while low-voltage windings utilize copper busbars. Short-circuit impedance is 6% to 10%, providing excellent short-circuit resistance.
Application scenarios and installation standards:
Typical application fields
Industrial power distribution: Provides stable power supply for mine air compressors and production line equipment, supporting an instantaneous overload of 1.2 times.
Grid access: As a terminal substation, it connects 11kV/22kV/33kV transmission lines with 0.4kV distribution networks, and is suitable for upgrading rural power grids.
New energy support: Achieve step-up grid connection in photovoltaic, wind power and energy storage projects.
Installation environment requirements
Foundation and protection: The concrete base can bear a load of no less than 5 tons. A 1.7-meter-high protective fence is set up around it, and the distance from the building is no less than 1.5 meters.
Grounding system: The neutral point and the casing are grounded separately, with a grounding resistance of no more than 4Ω.
Coastal area adaptation: It needs to pass the salt spray test. It is recommended to choose a stainless steel casing and anti-corrosion coating.
