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15-300VA Oil Immersed Voltage Transformer EVT 10kV 35kV 66kV 110kV
15-300VA Oil Immersed Voltage Transformer EVT 10kV 35kV 66kV 110kV
Specifications
Place of Origin :
China
Rated Primary Voltage :
10kV, 35kV, 66kV, 110kV
Accuracy Class :
0.2, 0.5 Class for Metering; 3P, 6P Class for Protection
Price :
Negotiable
Rated Capacity :
15 ~ 300VA
Brand Name :
EUE Power
Payment Terms :
L/C,T/T,DDP,DDU
Packaging Details :
Different packaging methods are adopted according to different modes of transportation
Rated Secondary Voltage :
100/√3V, 100V, 100/3V (Zero‑sequence)
Rated Frequency :
50Hz
Product Name :
Oil-immersed Voltage Transformer (EVT)
Description

Oil-immersed Voltage Transformer (EVT)

The Oil-immersed Voltage Transformer (EVT) utilizes high-grade transformer oil as the primary insulating medium, featuring a robust oil-paper insulation structure. It is engineered to convert primary high voltage into standard secondary low voltage via electromagnetic induction, ensuring precise voltage signals for metering, measurement, relay protection, and automatic control systems.

Key Benefits & Applications

  • High Precision: Accurate voltage transformation for metering and protection.
  • Reliable Insulation: Advanced oil-paper structure for long-term stability.
  • Versatile Use: Essential for power system monitoring and automatic control. 35kV–110kV substations, 10kV distribution systems & new energy applications.

Product Attributes

Insulation Type: Oil-impregnated Paper
Cooling Method: Oil-natural Air-natural (ONAN)
Frequency: 50Hz

Overview

The Oil-immersed Voltage Transformer (EVT) uses transformer oil as the main insulating medium and adopts an oil-paper insulation structure. It converts primary high voltage into standard secondary low voltage through electromagnetic induction, providing voltage signals for metering, measurement, relay protection and automatic control in power systems.

Application

Outdoor substations

Suitable for 35kV–110kV outdoor substations, mainly used for busbar voltage monitoring, line protection and gateway energy metering.

Indoor distribution substations

Suitable for traditional 10kV indoor distribution substations with low space requirements and high demand for long-term stability.

High-insulation applications

Compared with epoxy resin cast types, it is more suitable for systems requiring higher insulation strength and long-term operational stability.

Harsh outdoor environments

Suitable for areas with large temperature differences, high humidity and long-term outdoor exposure.

Polluted industrial areas

Performs better than cast types in heavily polluted and high-humidity environments, such as mines, chemical plants, coastal regions and industrial zones.

Industrial and new energy systems

Applied in industrial and mining enterprises, rail transit, wind power and PV step-up stations for 35kV outdoor voltage collection and protection, especially in environments with strong interference.

Performance Advantages

Wide application

Designed for harsh outdoor environments and higher voltage applications, this product is widely used as voltage sensing equipment in medium- and high-voltage transmission and distribution systems.


Oil-immersed insulation

With a fully sealed or semi-sealed oil tank filled with high-quality insulating oil, it provides insulation, heat dissipation and arc-extinguishing performance.


Stable performance

It features high insulation strength, strong overload capacity, stable operation and excellent accuracy retention.

Product Photos

15-300VA Oil Immersed Voltage Transformer EVT 10kV 35kV 66kV 110kV

Technical Parameters

ITEM NAME

PARAMETER

Rated Primary Voltage

10kV, 35kV, 66kV, 110kV

Rated Secondary Voltage

100/√3V, 100V, 100/3V (Zero‑sequence)

Rated Frequency

50Hz

Accuracy Class

0.2, 0.5 Class for Metering; 3P, 6P Class for Protection

Rated Capacity

15 ~ 300VA

Insulation Type

Oil‑impregnated Paper Insulation

Cooling Method

Oil‑natural Air‑natural (ONAN)

Insulation Level (Take 35kV as Example)

40.5/95/200 kV

Creepage Distance

Complies with Pollution Level II ~ IV

Temperature Rise

Oil Surface Temperature Rise ≤55K



About EUE Power – Your Trusted Power Distribution Equipment Manufacturer

EUE Power is a China-based manufacturer specializing in power distribution equipment and energy storage products for global industrial, commercial, and renewable energy applications.


With professional manufacturing capabilities and OEM/ODM support, EUE Power supplies reliable power distribution products including distribution transformers, compact substations, switchgear, UPS systems, and battery energy storage systems.


Our factory combines engineering expertise, strict quality control, and flexible production capabilities to meet different market requirements worldwide.


Whether you are looking for a reliable distribution transformer supplier, compact substation manufacturer, switchgear supplier, or energy storage equipment partner, EUE Power provides dependable products and professional support.


Partner with EUE Power for:

  • Stable manufacturing quality
  • Customized OEM/ODM services
  • Competitive factory pricing
  • International export experience
  • Professional technical support


EUE Power — Reliable Power Equipment Manufacturer for Global Markets.


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15-300VA Oil Immersed Voltage Transformer EVT 10kV 35kV 66kV 110kV

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Product Detail
Place of Origin :
China
Rated Primary Voltage :
10kV, 35kV, 66kV, 110kV
Accuracy Class :
0.2, 0.5 Class for Metering; 3P, 6P Class for Protection
Price :
Negotiable
Rated Capacity :
15 ~ 300VA
Brand Name :
EUE Power
Contact Supplier
15-300VA Oil Immersed Voltage Transformer EVT 10kV 35kV 66kV 110kV

East Union Energy (Shenzhen) Technology Co., Ltd.

Verified Supplier
1 Years
shenzhen
Since 11
Business Type :
Manufacturer, Exporter
Main Products :
Distribution Transformer, Instrument Transformer, Pad Mounted Transformer
Total Annual :
200000m²-200000m²
Employee Number :
15~20
Certification Level :
Verified Supplier
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