S22 High-efficiency Power Transformer

Name: High-efficiency Power Transformer (S22 Series)
Brand: BeiDian Electric
Availability: InStock

The S22 series delivers ultra-low no-load loss with advanced step-lap core technology — engineered for substations and industrial applications demanding maximum energy efficiency.

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Technical Specifications

Voltage Class 33kV – 35kV

Capacity Range 6300kVA – 16,000kVA

Frequency 50Hz / 60Hz

Vector Group YNd11 / Yyn0

Insulation Level LI480 AC200

Cooling Method ONAN / ONAF / OFAF

Standard IEC 60076, IEEE C57.12

No-load Loss S22 Grade (Ultra-low)

Key Features

Why Choose This Product

S22 Series delivers dependable performance backed by manufacturing under a quality management system aligned with ISO 9001 and 100% factory testing.

Step-lap core with low no-load loss

Step-lap core construction minimizes flux distortion and no-load loss, achieving S22 ultra-low loss grade.

H-grade insulated copper winding

H-grade insulated copper conductors handle high thermal and electrical stress for reliable continuous duty.

Vacuum oil filling process

Vacuum oil-filling removes trapped air and moisture, ensuring full insulation and partial-discharge-free performance.

On-load tap changer (optional)

Optional on-load tap changer enables voltage regulation under load without interrupting supply — ideal for substations.

Built-in temperature monitoring

Integrated winding and oil temperature monitoring with alarms protects against overload and hot spots.

Applications

Typical Applications

▸Substation construction and grid upgrade

▸Long-distance power transmission

▸Large industrial plants and steel mills

▸Power plant step-up applications

▸Renewable energy collection stations

S22 High-efficiency Power Transformer

Technical Specifications