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Home > Three-phase Distribution Transformer > Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
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Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection
Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection

Factory Direct Sale Prices 35kV Three Phase Distribution Oil Immersed Transformer SZ18 Model 50/60Hz Dyn11/Yyn0 Connection

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Product Description

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Technical Specifications - SZ18 Series
Type Rated Voltage Combination Connection Symbol No-load Current (%) No-load Loss (kW) Load Loss (kW) Impedance Voltage (%)
HV (kV) Tapping Range (%) LV (kV)
SZ18-200035±3×2.510Dyn11
Yyn0		0.41.8418.26.5
SZ18-25000.42.1819.66.5
SZ18-31500.42.6023.57.0
SZ18-40000.43.1027.67.0
SZ18-50000.43.7032.57.0
SZ18-63000.44.5034.97.5 or 8.0
SZ18-80000.326.3038.67.5 or 8.0
SZ18-100000.327.4045.67.5 or 8.0
SZ18-125000.288.7054.07.5 or 8.0
SZ18-160000.2810.5066.87.5 or 8.0
SZ18-200000.2812.4078.67.5 or 8.0
SZ18-250000.2414.6092.910.0
SZ18-315000.2417.40110.210.0
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Internal Components
Assembly Detail
Manufacturing Process
Quality Inspection
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Terminal Box
Cooling System
Side View
Full Installation
Frequently Asked Questions
What is the primary application of the SZ18 series transformer?
The SZ18 series is a high-performance power transformer designed for 35kV systems, providing stable voltage regulation and power distribution for industrial and civil electrical grids.
What are the benefits of the Dyn11 connection symbol?
The Dyn11 connection helps in neutralizing the 3rd harmonic and improves the transformer's ability to handle unbalanced loads, making it ideal for modern power distribution requirements.
How does the SZ18 series optimize energy efficiency?
By utilizing advanced core materials and optimized winding structures, the SZ18 series achieves exceptionally low no-load current and low load loss, significantly reducing operational energy costs.
What is the tapping range for the high-voltage side?
The standard tapping range for the HV side is ±3×2.5%, allowing for precise on-load voltage regulation to maintain consistent output levels despite input fluctuations.
Can these transformers handle high impedance requirements?
Yes, depending on the specific model within the series, the impedance voltage ranges from 6.5% to 10.0%, ensuring excellent short-circuit resistance and system stability.
Are the units suitable for large-scale industrial capacity?
Absolutely. The SZ18 series covers a wide capacity range, from 2000kVA up to 31500kVA, meeting the needs of large manufacturing plants and regional substations.

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