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Single Phase Oil Immersed Step Down Power Transformer 25 Kva 100 Kva 250 Kva

Product Summary

Single Phase Oil Immersed Step Down Power Transformer IP65 Level 25 KVA 100 KVA 250 KVA Product Specifications Attribute Value Frequency 50Hz, 60Hz Phase Single Phase Application Distribution System Coil Structure Shell-Type Coil, layer coil, fully sealed construction, Disc Coil, round coil Output ...

Key Attributes
Brand Name: HENTG Power
Model Number: ZGS Series
Place of Origin: China
Certification: CE/UL/CSA/IEEE
MOQ: 1
Product Custom Attributes
Highlight

IP65 Level Step Down Power Transformer

,

Oil Immersed Step Down Power Transformer

Frequency:
50Hz, 60Hz
Phase:
Single Phase
Application:
Distribution System
Coil Structure:
Shell-Type Coil, Layer Coil, Fully Sealed Construction, Disc Coil, Round Coil
Output Voltage:
110V, 220V, 380V, 400V , 440V, 480V
Input Voltage:
6.6kV, 6.3kV, 6kV, 10.5kV, 10kV,
Type:
Oil-Immersed Transformer, Single Phase Pad Mounted Transformer
Application:
Power Distribution System Power Transformer
Rated Capacity:
10kVA -500kVA
Vector Group:
Dyn11 / Yyn0
Low Voltage:
110-240/240-480/600-690V
Warranty:
3years
Standard:
DOE/IEC60076/IEEE/ANSI
Feature:
High Frequncy Distribution Transformer Oil
Mounting Type:
Pole Mounted
Power Rating:
1-10 KVA
Winding Material:
Copper
Efficiency:
98%
Enclosure Material:
Steel
Insulation Class:
Class H
Product Description
Single Phase Oil Immersed Step Down Power Transformer IP65 Level 25 KVA 100 KVA 250 KVA
Product Specifications
Attribute Value
Frequency 50Hz, 60Hz
Phase Single Phase
Application Distribution System
Coil Structure Shell-Type Coil, layer coil, fully sealed construction, Disc Coil, round coil
Output Voltage 110V, 220V, 380V, 400V, 440V, 480V
Input Voltage 6.6kV, 6.3kV, 6kV, 10.5kV, 10kV
Type Oil-Immersed Transformer, Single Phase Pad Mounted Transformer
Vector Group Dyn11 / Yyn0
Low Voltage 110-240/240-480/600-690V
Standard DOE/IEC60076/IEEE/ANSI
Mounting Type Pole Mounted
Winding Material Copper
Protection Level IP65
Efficiency 98%
Enclosure Material Steel
Insulation Class Class H
Certifications UL Listed, CSA Certified
Product Overview
HENTG Power Single Phase Oil Immersed Transformer is a high-efficiency step-down transformer available in 25 KVA, 100 KVA, and 250 KVA configurations.
Key Features
  • High efficiency design minimizes energy consumption and reduces electricity costs
  • Durable construction using premium materials for long-term, maintenance-free operation
  • Built-in overload protection ensures safe and reliable performance
This transformer is specifically designed for outdoor environments with excellent weather resistance and corrosion protection. Ideal for both residential and small commercial applications, it delivers stable power supply while optimizing energy efficiency.

Technical Performance Data
Rated Capacity (KVA) HV Tapping Range LV No-load Loss (W) Load Loss (W) Dimension (mm) Efficiency
15 2400-34500 ±2*2.5% 110-690 60-150 330-1150 520-795 98.8
25





99.0
37.5





99.1
50





99.1
75





99.2
100





99.3
167





99.3
250





99.4
333





99.4
500





99.5

Advantages in Distributed Power Distribution Networks
  • Reduced Line Losses: Installed close to the load, these transformers shorten the low-voltage supply radius, reducing low-voltage line losses by over 99%
  • Energy Efficient Design: Features high-efficiency wound core design for improved electrical performance and energy savings
  • Space-Saving Installation: Pole-mounted suspension installation requires no ground space, ideal for rural and suburban areas
  • Cost Effective: Lower capital investment compared to traditional transformer systems
  • Reliable Operation: Fully enclosed structure provides excellent protection against dust and moisture with strong overload capacity

Detailed Technical Specifications
Core Structure:
  • Electromagnetic System: Silicon Steel Laminated Core, Copper/Aluminum Winding (H-Class Insulation)
  • Protection System: IP55 Protection Grade Oil Tank, with Pressure Relief Valve and Oil Level Gauge
Electrical Parameters:
Item Typical Value
Rated Capacity 10kVA/25kVA/50kVA
No-load Loss ≤45W (25kVA Example)
Impedance Voltage 4%±10%
Special Design Features:
  • Fully Sealed Structure for Anti-Oxidation
  • Axial Heat Sink for Enhanced Convection
  • Anti-Theft Mechanical Locks
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