Outdoor Rated Three Phase Pad Mounted Transformer 300kVA With Tamper Proof

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Product Details
Company Details

Product Specification


High Light	Three Phase Pad Mounted Transformer 300kVA ，Outdoor Rated Pad Mounted Transformer ，Tamper Proof Cabinet Pad Mounted Transformer

Outdoor Rated Three Phase Pad Mounted Transformer 300kVA With Tamper Proof Cabinet

Product Specifications

Type	Distribution transformer, power transformer, Oil-filled Transformer
Frequency	50Hz, 60Hz
Winding Material	Aluminum
Application	Power Distribution System
Phase	Three
Coil Structure	TOROIDAL
Input Voltage	10kV
Output Voltage	400V, 380V, 440V, 480V
Cooling Method	ONAN ONAF OFAF

Capacity (KVA)	HV	Tapping range	LV	No-load loss	Load loss	Impedance	Efficiency
75	2400 4160 7200 7620 12000 12470 13200 13800 14400 19920 24940 34500	±2X2.5%	110 120 208 240 277 347 415 416 480 600 690	130	100	4.0-6.3	99.03
300				430	3700		99.27

Product Overview

This 300kVA three-phase pad-mounted transformer is engineered for superior reliability and efficiency in medium-voltage power distribution systems. Designed for outdoor installations, it features a tamper-proof cabinet, oil-immersed cooling, and a compact footprint, making it ideal for utility, commercial, and industrial use. Built to ANSI/IEEE and IEC standards, this transformer offers long-term durability and excellent thermal performance.

Key Features

Power Rating: 300kVA
Type: Three-Phase, Pad-Mounted, Oil-Immersed
Primary Voltage: Optional (e.g., 13.8kV, 12.47kV, or custom on request)
Secondary Voltage: 480Y/277V, 208Y/120V, or customized
Frequency: 50/60Hz
Cooling Method: ONAN (Oil Natural Air Natural)
Temperature Rise: 55°C or 65°C available
Tap Changer: Off-circuit tap changer ±2*2.5% or as specified
Enclosure: Weatherproof, tamper-resistant cabinet (ANSI C57 compliant)

Product Benefits

Efficient & Reliable: High-grade silicon steel core and precision winding ensure low losses and reliable voltage regulation.
Low Maintenance: Hermetically sealed tank design reduces the risk of leaks and prolongs service life.
Safe for Public Areas: Tamper-proof design with dead-front construction ensures public safety and secure operation.
Flexible Configuration: Primary and secondary voltages can be customized to meet site-specific requirements.
Rugged Outdoor Use: Corrosion-resistant coating and weatherproof design ensure durability in all environments.

Typical Applications

Utility substations
Commercial complexes
Hospitals and healthcare facilities
Schools and universities
Data centers
Manufacturing and industrial plants
Renewable energy systems (solar/wind)

About HENTG POWER

HENTG POWER is a professional designer, manufacturer and installer of power system solutions worldwide, founded in 2011 with a 100,000 square meter facility. We specialize in reliable, high-performance solutions for global power systems.

Quality Assurance

Pre-production samples before mass production
Final inspection before shipment with QC & test reports
Factory Acceptance Test (FAT) available
Manufacturing capability up to 500KV 480MVA power transformers
Compliance with ANSI/IEEE/DOE2016/CSA/IEC60076 standards
2+ years guarantee service

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory



Business Type:

Manufacturer 


Year Established:

2011 


Total Annual:

300-500MVA


Employee Number:

150~200 


Ecer Certification：

Verified Supplier 

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Reach Us
Hunan Hentg Power Electric Technology Co., Ltd.
Room905, D6 building, CCSP Industrial Park, Yuelu District, Changsha，Hunan province, China
https://www.ecer.com/corp/uuuf953-hentgpower2025.html

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