Specifications
Description
Outdoor Rated Three Phase Pad Mounted Transformer 300kVA With Tamper Proof Cabinet
Product Attributes
Attribute Value
Type distribution transformer, power transformer, Oil-filled Transformer
Frequency 50Hz, 60Hz
Winding Material Aluminum
Application Power
Phase Three
Coil Structure TOROIDAL
Coil Number Multi-winding coil
Input Voltage 10kV
Output Voltage 400V, 380V, 440V, 480V
Cooling Method ONAN ONAF OFAF
Transformer type Toroidal Transformer
300kVA Three-Phase Pad-Mounted Transformer | High Efficiency | Oil-Immersed | Outdoor Rated
Outdoor Rated Three Phase Pad Mounted Transformer 300kVA With Tamper Proof Cabinet
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
152 200 1800 99.16
225 350 3100 99.23
300 430 3700 99.27
500 600 5410 99.35
750 880 7500 99.4
1000 1000 10300 99.43
1500 1400 14500 99.48
2000 1800 18300 99.51
2500 2300 23100 99.53
Outdoor Rated Three Phase Pad Mounted Transformer 300kVA With Tamper Proof Cabinet
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.

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)
  • Insulation Level: BIL 95kV or per customer specs
  • Standards: ANSI/IEEE, IEC, DOE, CSA (upon request)
  • Color: Munsell green or customized color available
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.
Quiet Operation: Engineered to minimize audible noise for use in residential and commercial settings.
Application

Common Uses:

  • Utility substations
  • Commercial complexes
  • Hospitals and healthcare facilities
  • Schools and universities
  • Data centers
  • Manufacturing and industrial plants
  • Renewable energy systems (solar/wind)
Business Partner
Who are we?

HENTG POWER is a professional designer, manufacturer and installer of power system solution around the World, was founded in 2011, occupies 100,000 square meter. specializing in reliable, high-performance solutions for global power systems.

How can we guarantee quality?

Always a pre-production sample before mass production; Always final Inspection before shipment, We will provide QC & test reports. We accept FAT(Factory Acceptance Test). Factory can manufacture oil type and dry type distribution transformer, max 500KV 480MVA power transformer, GIS, switchgear, substation, based on ANSI/IEEE/DOE2016/CSA/IEC60076 standard. We will provide you with the guarantee service of over 2 years.

Why choose us?

We have the professional and independent drawing team and technical team, It is expected that we can confirm all the contents on the drawings with you within 7 days. we have a professional technical team with 30+ senior engineers offer 24 hours online service and response within 30 min.

What services can we provide?

Accept OEM, business payment are negotiated.

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

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

Hunan Hentg Power Electric Technology Co., Ltd.

Verified Supplier
1 Years
hunan, changsha
Since 2011
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Total Annual :
50000000-100000000
Employee Number :
200~250
Certification Level :
Verified Supplier
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