Solar Transformers: Essential Components for Solar Power Systems

As the world shifts towards renewable energy sources, solar power systems have become increasingly prevalent.
A critical component in these systems is the solar transformer, responsible for converting voltage levels to ensure
efficient energy transmission and distribution. ZTELEC YUGUANG, a leading manufacturer of electrical equipment,
offers a comprehensive range of high-quality solar transformers designed specifically for photovoltaic systems.

Our solar transformers are engineered to withstand the unique challenges of solar power generation, including
varying load conditions, outdoor environments, and the need for high efficiency. With decades of experience in
transformer manufacturing, ZTELEC YUGUANG delivers reliable, durable, and cost-effective solutions for solar
energy projects of all sizes.

Solar Transformers: Essential Components for Solar Power Systems

Common Types of Solar Transformers

Dry Type Transformers

Dry type transformers are ideal for solar applications where fire safety is a priority.
Instead of oil, they use air or solid insulation materials for cooling.

Three Phase Dry Type Transformer

Key Specifications:

• Power rating: 50kVA – 2500kVA
• Voltage class: 10kV, 20kV, 35kV
• Insulation class: F or H
• Protection degree: IP20, IP23, IP54

ZTELEC YUGUANG’s dry type transformers offer excellent resistance to humidity and dust, making them
suitable for both indoor and outdoor solar installations.

Oil-Immersed Transformers

Oil-immersed transformers use mineral oil or synthetic fluid for insulation and cooling, providing
high efficiency and durability in outdoor environments.

1000kva KNAN Oil Immersed Power Distribution Transformer

Key Specifications:

• Power rating: 100kVA – 30,000kVA
• Voltage class: 10kV, 35kV, 110kV
• Oil type: Mineral oil or biodegradable oil
• Cooling method: ONAN, ONAF, OFAF

ZTELEC YUGUANG’s oil-immersed transformers are designed for reliable performance in harsh weather
conditions, making them perfect for utility-scale solar farms.

Pad-Mounted Transformers

Pad-mounted transformers are enclosed in a weatherproof cabinet, designed for safe installation
on the ground without additional housing.

Key Specifications:

• Power rating: 50kVA – 3000kVA
• Voltage class: 10kV/0.4kV, 20kV/0.4kV
• Enclosure: NEMA 3R, NEMA 4X
• Protection: Overload, short circuit, lightning

ZTELEC YUGUANG’s pad-mounted transformers feature compact design and easy maintenance,
ideal for commercial and industrial solar applications.

Standard Specifications for Solar Transformers

Why Choose ZTELEC YUGUANG Solar Transformers?