OEM Oil Immersed Transformer 35kv 15kVA Single Phase Solar

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OEM Oil Immersed Transformer 35kv 15kVA Single Phase Solar

Customization:	Available
Application:	Power, Electronic, Instrument, Lighting, Rectifier, Audio
Phase:	Three

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Product Description

Overview

Core Core-type Transformer

Cooling Method Oil-immersed Type Transformer

Winding Type Two-winding Transformer

Certification ISO, CE

Frequency 50Hz / Low Frequency

Standard IEC60076

Rated Capacity 30kVA~2500kVA

Model Number S11-M

HS Code 8504210000

Product Description

Oil-immersed Power Transformer

Our oil-immersed transformers are widely used in residential communities, commercial complexes, industrial and mining enterprises, power stations, public facilities, and urban/rural power grid upgrading projects. They are suitable for 10kV / 20kV / 35kV distribution and transmission systems with stable performance in various load fluctuation conditions and harsh environments.

High-quality silicon-steel core: Low no-load loss & low noise. Using high-grade silicon steel sheets with 45° multi-seam lamination.
Fully-sealed corrugated tank: Maintenance-free and extended service life. Oil is isolated from air to prevent oxidation.
Strong short-circuit withstand: Reinforced structure ensures consistent product quality and reliability.
High overload performance: Supports 1.5× rated capacity for 6 hours, ideal for peak seasons.

Technical Specifications

Product Model	Voltage Class	Vector Group	Capacitance Range	No-load loss (W)	Load loss (W)
35kV Oil-immersed Power Transformer	35kV	Yyn0, Dyn11	800~25000kVA	984~2022	9405~112860
20kV Oil-immersed Distribution Transformer	20kV	Yyn0, Dyn11	30~2500kVA	690~22220	80~2340
10kV Oil-immersed Distribution Transformer	10kV, 6kV	Yyn0, Dyn11	30~3150kVA	50~2060	350~19400

Customizable Options (OEM / ODM)

⭐ Voltage Levels: 6kV, 10kV, 11kV, 20kV, 33kV, 35kV

⭐ Frequency: 50 Hz / 60 Hz global compatibility

⭐ Rated Capacity: 30 kVA to 25000 kVA

⭐ Winding Material: High-grade Copper (Standard) or Aluminum (Optional)

⭐ Loss Standards: S11, S13, SH15 (Amorphous Alloy)

⭐ Temperature Rise: 65K / 75K / 95K options

⭐ Structure: Customizable tank colors (Grey/Green) and radiator types

Packing & Delivery

Professional Capability

As a professional manufacturer integrating R&D, production, sales, and service, we focus on high-reliability power transmission and distribution products. Our main product lines include Ring Main Units (RMU), Prefabricated Substations, Dry-type and Oil-immersed Transformers, and LV Switchgear.

We have passed ISO9001, ISO14001, and ISO45001 management system certifications, ensuring strict quality control and reliable product performance for global projects.

Frequently Asked Questions

Q1: What are the main benefits of oil-immersed transformers?

A: They offer excellent heat dissipation, high insulation strength, and a fully sealed design that minimizes maintenance and oxidation, making them ideal for outdoor and harsh environments.

Q2: Can the voltage and capacity be customized for specific projects?

A: Yes, we provide full OEM/ODM services. We can customize primary/secondary voltages (up to 35kV) and capacities ranging from 30kVA to 25000kVA.

Q3: What is the typical lead time for an order?

A: Standard models usually ship within 15–30 days. For highly customized units, the lead time typically ranges between 30 and 45 days depending on the complexity.

Q4: Are your transformers compliant with international standards?

A: Yes, all our transformers are designed and manufactured according to IEC60076 standards and carry CE and ISO certifications.

Q5: How do you ensure the quality of the transformer core?

A: We use high-grade cold-rolled grain-oriented silicon steel sheets with a 45° multi-seam lamination process to ensure low no-load losses and reduced operational noise.

Q6: What cooling methods are used for these transformers?

A: Our standard transformers use ONAN (Oil Natural Air Natural) cooling. For larger units or special requirements, ONAF (Oil Natural Air Forced) can also be provided.