ZGS11-Z.G-□/35 Combined transformer for photovoltaic power generation | ZTELEC YUGUANG Solar Power Solution

09-24 2025 | By:

Combined transformer for photovoltaic power generation

Discover the ZGS11-Z.G-□/35 Photovoltaic Combined Transformer by ZTELEC YUGUANG. Fully sealed, energy-efficient 35kV transformer with load switch, high-voltage fuses, smart monitoring, and corrosion-resistant design for solar power plants and renewable energy applications.

Combined transformer for photovoltaic power generation

Product Overview

The ZGS11-Z.G-□/35 Photovoltaic Combined Transformer is an advanced solution independently developed by ZTELEC YUGUANG, integrating international and domestic cutting-edge technologies. This product combines a transformer, load switch, and high-voltage fuse inside a compact transformer tank. Using transformer insulating oil as both insulation and cooling medium, it adopts a fully sealed design, ensuring long-term reliability and safe operation in photovoltaic power generation projects.

Advantages & Features

• Rational structure with compact, fully sealed design

• Easy maintenance and reliable performance

• 35kV energy-efficient step-up transformer

• Special anti-corrosion treatment for outdoor durability

  Rated capacity (kVA)	Rated voltage(kV)	Link group label	Impedance voltage(%)	No-load loss （W）	Load loss （W）	weight(t)	Reference size(mm) L*W*H
  630	H.V. 36.75,38.5 ±2×2.5% L.V. 0.27-0.27	Dyn11- yn11 Yd11-d11	6.5	810	7820	4	2450*2260*2150
  800				980	9350	4.5	2450*2280*2150
  900				1070	10450	4.8	2450*2300*2150
  1000				1150	11500	5	2520*2340*2150
  1250				1370	13850	5.1	2520*2380*2150
  1600				1650	16600	6.5	2520*2380*2150

  

  Combined transformer for photovoltaic power generation

Technical Characteristics

1. Modular Structure: The unit is divided into six parts — transformer body, high-voltage chamber, low-voltage chamber, monitoring chamber, switch operation room, and fuse room. Layout can be arranged in “I” shape or “U” shape based on project needs.

2. High-Voltage Protection: Equipped with terminal-type load switch and full-range current-limiting fuses, ensuring reliable fault protection.

3. Compact Design: Load switch and fuses are installed inside the transformer tank. The insulating oil acts as insulation and cooling medium, improving thermal performance and reducing space usage.

4. High-Voltage Outlet: Adopts dry-type bushing with copper busbar structure, supporting multiple cable connections. Low-voltage outlets can be customized according to user requirements.

5. Reinforced Doors: Wind-resistant hinges, outward-opening doors (≥90° opening angle) with positioning devices and sealing strips. Rainproof, dustproof, rust-resistant, and anti-tampering design.

6. Anti-Theft Sealed Structure: The box adopts concealed high-strength bolts with nitrile rubber sealing gaskets. No external removable bolts, ensuring enhanced safety.

Product Advantages

1. Attractive Appearance: Painted in colors harmonized with photovoltaic power plants, aesthetically pleasing and modern.

2. Compact & Space-Saving: Small footprint compared to traditional substations.

3. High Protection Level: Full-sealed structure with weather-resistant rubber strips and double-layer high-voltage chamber doors, ensuring waterproof, snow-proof, dustproof, and windproof performance.

4. Smart Design: Integrated microcomputer system for monitoring and protection. Functions include load switch status, oil temperature, oil level, and gas detection. Equipped with travel switches and electromagnetic locks, supporting remote monitoring, telemetry, telecontrol, and smart grid management.

   

   Combined transformer for photovoltaic power generation

Application Scenarios

• Photovoltaic power generation plants

• Renewable energy grid connection

• Rural electrification and distributed energy projects

• Industrial and commercial solar farms

Why Choose ZTELEC YUGUANG?

As a professional manufacturer of photovoltaic transformers and power distribution equipment, ZTELEC YUGUANG provides customized models, complete specifications, and reliable quality assurance. Our ZGS11-Z.G-□/35 series ensures high efficiency, safe operation, and reduced maintenance costs, making it the preferred solution for modern solar power generation projects.

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