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500 kVA Pad Mount Three-Phase Oil-Immersed Distribution Transformer

NPC ELECTRIC three-phase pad-mounted oil-immeresed distribution transformers are powerful, dependable, and designed with the environment in mind. With the ability to function indoors and outdoors, these transformers offer enhanced reliability and protection against critical equipment failure. The lower operating costs and heat emissions of these transformers make them an ideal choice for a wide range of applications.

Product Technical Specs

KVA Rating	500 KVA
No. of Phases	Three-Phase
Winding Configuration	Delta – Wye / Wye – Wye/ Delta – Delta/ Wye – Delta
Tapping Range	±2 x 2.5%
Winding Material	Copper / Aluminum
Impedance	4.35-5.75%
Mounting	Pad-Mounted
Vector Group	As per requirement
Type of Installation	Indoor / Outdoor
Sound Level	NEMA TR1 Standard
IEEE Standards	IEEE C57.12.00
Certification	UL Listed
Efficiency	DOE 2016 Standard Compliant
Enclosure	NEMA Type 3R – Stainless Steel
Additional Accessories	Electrostatic Shielding Lighting Arrestors Bay-O-Net Expulsion Fuse MOV Surge Arrestor (on demand)
Quality Control	Transformer routine tests as per ANSI® and IEEE® Tank Coating System complies with IEEE Std C57.12.28 and C57.12.29 Quality System is ISO 9001 certified
Warranty	18 months

Transformer Features

This 500 KVA pad-mounted transformer comes in single and three-phase configurations with a voltage rating of 2,400 – 46,000 V on the primary side and 208Y/120 V to 14,400 V on the secondary side. This unit’s cores are made from cold-rolled silicon steel laminations using state-of-the-art technology. This transformer is highly energy efficient with lower heat emissions, resulting in fewer cooling requirements. The unit also features mineral oil as an insulating fluid with a 65°C temperature rise. With its NEMA Type 3R enclosure, this pad-mount unit can be used for indoor or outdoor applications. This transformer is primarily used in Electric power distribution, stepping down primary voltage, energy management systems, and underground industrial power distribution.

Diagram Of Transformer

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Cooling Type

ONAN/ONAF
Primary Voltage

2400 – 46,000 V
Secondary Voltage

208Y/120 V to 14,400 V
Frequency

60/50 Hz
Fluid Type

Non-PCB Mineral Oil or FR3 Fluid

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