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1.Level 2 energy efficiency for better energy saving, low power loss and more electricity savings in long-term operation.

2.Epoxy resin casting, safe and flame-retardant, oil-free and eco-friendly, with reliable operation.

3.Excellent short-circuit withstand capability, moisture-proof and dust-proof, adaptable to various working conditions.

4.Low noise, maintenance-free, and long service life.

5.Widely applicable, it is the preferred model for power distribution upgrading.

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Product Details

Product Details of SCB14 Series Epoxy Resin Cast Dry-Type Transformer

(For product brochures, technical bids, official websites, professional and readable, highlighting Level 2 energy efficiency, intelligence and high adaptability)

1. Product Introduction

The SCB14 series three-phase epoxy resin cast dry-type transformer is a high-performance distribution equipment developed in accordance with the latest national energy efficiency standards. As a mainstream model meeting Level 2 energy efficiency, it is positioned as energy-saving, efficient, safe, reliable, intelligent and convenient. It is widely used in distribution network upgrading, new energy integration, high-load industrial power supply and high-end civil building power distribution.

Designed and manufactured in strict compliance with GB/T 10228-2015, IEC 60076-11:2013 and GB 20052-2020, the SCB14 series achieves comprehensive improvements in energy efficiency, reliability and adaptability based on the SCB12 and SCB13 series, through upgraded core material, optimized winding structure and improved casting technology.

It adopts a full-copper foil winding + vacuum epoxy casting structure, completely replacing the insulating oil used in traditional oil-immersed transformers with high-strength epoxy composite material. It is oil-free, eco-friendly, fire-retardant, moisture-proof and dust-proof. With a modular design and high standardization, it supports fast delivery and customization for plateau, low temperature, high humidity, salt fog and other harsh environments.

It has become the preferred product for urban and rural power grid renovation, equipment replacement and new energy supporting projects. It has been applied in thousands of projects including photovoltaic power stations, industrial parks and large civil buildings, and is widely recognized for stable operation and excellent energy-saving performance.

In addition, the SCB14 series can be equipped with an intelligent monitoring system to realize real-time status monitoring and remote early warning, further reducing operation and maintenance costs.

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2. Technical Parameters(Customizable)

2.1 Main Electrical Parameters

Item	Specification	Remarks
Model	SCB14-30～3150/10	30–3150kVA; 10kV/0.4kV, 6kV/0.4kV customizable
Phase	Three-phase	50Hz
Rated Capacity	30, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150 kVA	Full standard range, non-standard customizable
Rated Voltage	HV: 10kV (±2×2.5%); LV: 0.4kV	Suitable for grid voltage fluctuation
Connection Group	Dyn11	Standard for distribution transformers, suppresses 3rd harmonics
Tap Regulation	Off-circuit (standard); on-load (optional ±8×1.25%)	Off-circuit: reliable; on-load: voltage regulation without power cut
Insulation Class	Class F (155℃), Class H (180℃) optional	Temperature rise margin sufficient, strong overload capacity
Cooling Mode	AN/AF, FAF optional	120% for 2h, 150% for 30min under AF
No-load Loss	Meets Level 2 of GB 20052-2020	≤1.8kW@1000kVA, 15% lower than SCB12
Load Loss	Meets Level 2 of GB 20052-2020	≤10.2kW@1000kVA, 5.8% lower than SCB13
Partial Discharge	≤10 pC at 1.73Un, ≤5 pC optional	Far better than national standard
Short-circuit Impedance	6% (30–1600kVA); 8% (2000–3150kVA)	Withstands 25×rated current short-circuit impact

2.2 Structural & Environmental Parameters

Item	Specification
Winding	HV: full-copper cast foil/wire; LV: full-copper cast foil
Core	High-permeability grain-oriented silicon steel; lamination factor ≥0.96
Core Structure	Mitered joint, non-punching binding, damping structure
Protection Degree	IP54 standard; IP65, IP67 (outdoor) optional
Noise Level	≤52dB (≤630kVA); ≤58dB (800–1600kVA); ≤63dB (2000–3150kVA); ≤45dB for silent type
Ambient Temperature	Standard: -25℃～+55℃; customized: -40℃～+60℃
Altitude	≤1000m standard; ≤4000m for plateau type
Installation	Indoor floor-mounted, outdoor box-type substation, wall-mounted (small capacity)
Standards	GB/T 10228-2015; IEC 60076-11:2013; GB 20052-2020; GB 1094.1-2013; GB 1094.3-2017
Service Life	Design life ≥30 years; maintenance-free period up to 15 years

3. Main Features

3.1 High Energy Efficiency & Low Operation Cost

As a Level 2 energy efficiency product, SCB14 provides outstanding energy-saving performance:

Lower no-load and load loss, reduced by over 15% vs SCB12 and 5.8%–8.2% vs SCB13.
A 1000kVA unit can save over 12,000 kWh per year.
Complies with national energy-saving policies and supports green building subsidies.
Intelligent temperature control optimizes cooling and reduces unnecessary energy consumption.

3.2 High Safety & Multiple Protection

Vacuum epoxy casting, UL94 V‑0 flame retardant, self-extinguishing, non-toxic.
Oil-free structure eliminates fire, explosion and leakage risks.
Full-copper foil windings withstand 25×rated short-circuit current.
Extremely low partial discharge slows insulation aging.
PT100 temperature monitoring with alarm, trip and fan auto-control.

3.3 Strong Environmental Adaptability

Fully encapsulated windings are moisture-proof, dust-proof, anti-fouling and anti-corrosion.
Stable in coastal salt fog, high humidity, dusty and chemical environments.
Wide temperature range and customizable for plateau, low temperature.
Silent version down to ≤45dB for hospitals, labs, offices.

3.4 Intelligent & Maintenance-Free

Oil-free design requires no oil change, no oil test, almost maintenance-free.
Supports IoT remote monitoring, alarm and control via PC/APP.
Compact, lightweight, easy wiring, supports indoor/outdoor/box-type installation.