SBH15 11KV Hermetically-Sealed 3 Phase Pole Mounted Oil-Immersed Transformer
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S11-M- 500 kVA Distribution Oil Cooled Transformer
S11-M-500kVA Distribution Oil Cooled Transformer
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SBH15 11KV Hermetically-Sealed 3 Phase Pole Mounted Oil-Immersed Transformer

SBH15 11kV hermetic oil-filled 3-phase pole-mounted transformer is a highly efficient distribution transformer. It is widely applied in urban and rural distribution networks, industrial sites, and utility poles with space-saving and reliable performance.

The three-phase pole-mounted transformer is designed with a completely sealed oil tank to prevent moisture and oxidation from entering the transformer, thus increasing its service life and requiring minimum maintenance.

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Description

Key Features

1. Advanced Three-Dimensional Wound Core
The core adopts a three-dimensional triangular wound structure, composed of three identical single frames
Core columns are arranged in an equilateral triangle
Equal magnetic path length ensures perfect three-phase balance
Lower no-load loss and improved energy efficiency compared to conventional laminated cores

2. Hermetically Sealed Oil Tank
Fully sealed structure prevents air and moisture from entering
Eliminates oil aging and reduces maintenance costs
Extends transformer service life

3. Compact Pole Mounted Design
Optimized for pole mounted transformer applications
Smaller footprint than traditional rectangular tanks
Lightweight and easy installation on utility poles

4. Energy Saving Performance
Meets high-efficiency standards (SBH15 series)
Reduced no-load loss and load loss
Lower operating cost for power utilities

5. High Mechanical Strength
Strong short-circuit resistance
Stable structure under fault conditions
Reliable long-term operation

Technical Parameters

Rated Capacity High Voltage Tap Range Low Voltage Vector Group No-load Loss Load Loss No-load Current Impedance Voltage Sound Power Level Exterior Size
Lnstall4-Φ18		 Total Weight
(kVA) (kV) (kV) (W) (75℃)(W) (%) (%) (dB) (L*W*H) (kg)
30 6
6.3
6.6
10
10.5
11		 ±2*2.5

±5

 0.4 Dyn11
Yyn0
Yzn11		 33 630/600 1.5 4 52 800*500*800 300
50 43 910/870 1.2 53 820*550*800 350
63 50 1090/1040 1.1 53 835*580*800 380
80 60 1310/1250 1.0 55 840*600*830 400
100 75 1580/1500 0.9 55 860*600*860 440
125 85 1890/1800 0.8 59 1020*660*900 560
160 100 2310/2200 0.6 59 1035*660*900 620
200 120 2730/2600 0.6 61 1040*680*930 680
250 140 3200/3050 0.6 61 1140*740*960 800
315 170 3830/3650 0.5 64 1160*760*1100 920
400 200 4520/4300 0.5 64 1230*800*1150 1080
500 240 5410/5150 0.5 66 1320*900*1150 1285
630 Dyn11
Yyn0		 320 6200 0.3 4.5 66 1420*920*1180 1580
800 380 7500 0.3 68 1480*1000*1235 1900
1000 450 10300 0.3 68 1600*1100*1280 2155
1250 530 12000 0.2 72 1655*1135*1325 2515
1600 630 14500 0.2 72 1815*1260*1400 3050
2000 750 18300 0.2 5 73 1920*1305*1460 3735
2500 900 21200 0.2 73 2120*1430*1525 4520

Performance Advantages

  • Lower No-Load Loss: up to 20% lower than conventional transformers
  • Balanced Magnetic Circuit: reduces harmonics and improves stability
  • Reduced Noise Level: optimized core design minimizes vibration
  • Compact Size: ideal for limited installation space

Typical Applications

  • Overhead distribution networks
  • Rural electrification projects
  • Industrial and commercial power supply
  • Renewable energy grid connection
  • Utility pole mounted transformer systems

Why Choose Our 3 Phase Pole Mounted Transformer

  • Strict compliance with IEC, ANSI, and GB standards
  • Advanced manufacturing technology
  • Reliable quality with factory testing
  • Customizable specifications available
  • Competitive price with global export experience
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