S-M-630kVA 10kV/0.4kV Three Phase Oil Immersed Distribution Transformer

The YAWEI S-M-630 is a three-phase oil-immersed distribution transformer designed to step down medium-voltage electricity from 10kV to 0.4kV for low-voltage power distribution. With a rated capacity of 630kVA, it provides a practical power supply solution for industrial facilities, commercial buildings, public infrastructure, and distribution networks.

Designed for reliable power conversion and long-term operation, this transformer uses insulating oil for electrical insulation and heat dissipation. Its configuration can be customized according to project requirements, including winding materials, voltage regulation range, connection group, tank design, and applicable international standards.

The S-M-630 transformer is suitable for utility distribution systems and private electrical networks requiring stable three-phase power at 400V. YAWEI can provide technical documentation and customized specifications to help customers select a transformer that meets their local grid conditions and installation requirements.

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Model:
S13-M-630
Brand:
YAWEI

S-M-630 transformer 630kVA distribution transformer 630kVA oil immersed transformer

PRODUCT CATEGORY

>> Product Introduction

>> Technical Parameters

>> Applications and Industries

>> Installation, Operation and Maintenance

>> Technical Design and Configuration

Product Advantages

Reliable Power Distribution

The YAWEI S-M-630 transformer is designed for dependable medium-voltage to low-voltage power conversion. Its oil-immersed structure provides electrical insulation and heat dissipation, supporting stable operation in distribution networks. The 630kVA capacity makes it suitable for a wide range of industrial, commercial, and utility applications. Configuration options can be discussed according to project specifications, operating conditions, and applicable standards.

>> Technical Parameters

Type	Three Phase Oil-immersed Distribution Transformer
Model	S11~20
Installation	Outdoor
Altitude	≤1000m
Rated Power	630KVA or others
Cooling Method	ONAN
Primary Voltage	10KV
Secondary Voltage	400V or others
Rated Frequence	50/60HZ
Insulation oil	Mineral oil
Tapping Range	±2×2.5%/±5%
Temperature rise℃)	65
Connection Group	Dyn11/Yyn0
Total weight(kg)	1700

Versatile Distribution Applications

The 630kVA oil-immersed distribution transformer is suitable for industrial plants, commercial complexes, residential developments, agricultural facilities, and public infrastructure. It steps down 10kV medium-voltage power to 400V low-voltage distribution, subject to the specified secondary voltage and connection arrangement. The transformer can be integrated into new electrical installations or used for replacement and expansion projects.

Safe Installation and Long-Term Maintenance

Before installation, inspect the transformer for transportation damage and verify its nameplate ratings against the project specifications. Ensure that the foundation, grounding, cable connections, protective devices, and clearances comply with the approved drawings and local electrical regulations. Before energization, perform the required electrical checks and commissioning tests. During operation, monitor oil level, temperature, abnormal noise, leakage, and protective device indications. Maintenance should be performed by qualified personnel in accordance with the manufacturer's instructions and applicable standards.

Flexible Engineering Options

The S-M-630 transformer can be configured to meet different project requirements for voltage regulation, winding materials, insulation systems, and terminal arrangements. Depending on the confirmed design, options may include copper or aluminum windings, different tap settings, and alternative tank configurations. Technical parameters are finalized during engineering review to ensure compatibility with the customer's electrical system and installation environment.