Oil Immersed distribution Transformer Source Manufacturer 11kV 13.8kV 15kV

  • Oil Immersed distribution Transformer Source Manufacturer 11kV 13.8kV 15kV
Key attributes
Brand Vziman
Model NO. Oil Immersed distribution Transformer Source Manufacturer 11kV 13.8kV 15kV
Rated voltage 13.8KV
Rated frequency 50/60Hz
Rated capacity 125kVA
Series S
Product descriptions from the supplier
Description

Oil-Immersed distribution Transformer Product Introduction

This 125 KVA Three phase distribution Transformer is a high-performance Oil-Immersed distribution Transformer delivered to Zambia in 2003, with a rated capacity of 125 KVA, 11kV primary voltage and 0.55kV secondary voltage, perfectly adapting to the local medium and low-voltage power distribution demand. The core of this Oil-Immersed distribution Transformer adopts a 45° miter joint and step overlapping structure, which can effectively reduce no-load loss and no-load current, greatly improving the energy efficiency of the Three phase distribution Transformer. Engineered with advanced technology and high-quality raw materials and components, this Oil-Immersed distribution Transformer features reliable product quality and long-term stable operation, and the Three phase distribution Transformer’s optimized structural design further ensures balanced power output and stable performance. Vziman implements strict full acceptance testing for every delivered equipment, and has maintained a 0 fault rate record for more than 10 years; our Oil-Immersed distribution Transformer is fully designed and manufactured in accordance with IEC, ANSI and other major international standards, and each Three phase distribution Transformer meets the technical specifications of global power grid applications.

Oil-Immersed distribution Transformer Core Features

  • High-Efficiency Core Structure:This Oil-Immersed distribution Transformer adopts 45° miter joint and step overlapping core, effectively reducing no-load loss and current, and the Three phase distribution Transformer achieves higher energy utilization and lower power consumption.
  • Matching Voltage Configuration:The 11kV/0.55kV voltage ratio of this Three phase distribution Transformer is tailored for local power grid needs, and the Oil-Immersed distribution Transformer ensures stable voltage conversion and power transmission for medium and low-voltage distribution.
  • Superior Quality & Long Service Life:Built with advanced technology and premium components, the Oil-Immersed distribution Transformer has reliable performance and long operation time, and the Three phase distribution Transformer is resistant to complex outdoor working conditions.
  • Strict Quality Control:Every Three phase distribution Transformer and Oil-Immersed distribution Transformer passes rigorous full acceptance testing, with a 10+ year 0 fault rate record, ensuring zero hidden quality risks.
  • International Standard Compliance:Our Oil-Immersed distribution Transformer complies with IEC, ANSI and other international standards, and the Three phase distribution Transformer has standardized parameters for seamless integration with global power grid systems.

Oil-Immersed distribution Transformer Scope of Supply

  • Product: Oil Immersed distribution Transformer
  • Rated Power: Up to 5000 KVA
  • Primary Voltage: Up to 35 KV

Oil-Immersed distribution Transformer Technical Specification

125 KVA 3 phase step-down transformer specifications and datasheet.

Model

S11-125 KVA-11/0.55KV

Type

Oil Immersed Distribution Transformer

Standard

IEC60076

Rated Power

125 KVA

Frequency

50 HZ

Phase

Three

Cooling Type

ONAN

Primary Voltage

11kV 13.8kV 15kV

Secondary Voltage

0.55 KV

Winding Material

Copper

Vector Group

Dyn11

Impedance

4%

Tap Changer

NLTC

Tapping Range

±2*2.5%

No Load Loss

0.24KW

On Load Loss

1.8KW

Accessories

Standard Configuration

Remarks

N/A

Oil-Immersed distribution Transformer Application Scenario: Rural Power Grid Distribution

This 125 KVA Three phase distribution Transformer is the ideal Oil-Immersed distribution Transformer for rural power grid distribution scenarios. As core medium and low-voltage power conversion equipment, the Oil-Immersed distribution Transformer undertakes the 11kV to 0.55kV step-down task of rural power grids, providing stable three-phase power for rural residents' daily electricity use, small-scale agricultural production equipment and rural public facilities. The high-efficiency core structure of the Three phase distribution Transformer cuts down power loss in long-distance rural power transmission, and the oil-immersed structure enables the Oil-Immersed distribution Transformer to adapt to the outdoor rural environment with large temperature differences and complex terrain. Its 0 fault rate performance ensures uninterrupted power supply in rural areas, and compliance with international standards makes the Three phase distribution Transformer perfectly match the local power grid renovation and construction needs, laying a solid power foundation for the development of rural electrification.

The functions of transformer oil

Functions of Transformer Oil Electrical Insulation The main function of insulating oil in a transformer is to provide electrical insulation between the various energized parts; it also acts as a protective coating layer to prevent oxidation of the metal surfaces. Heat Dissipation Another important function of the oil is to enhance heat dissipation. Transformer cores and windings get heated up during operation due to various power losses. Oil takes heat away from the core and windings by the process of conduction and carries heat to the surrounding tank, which is then radiated out to the atmosphere. Viscosity, pour point, and flash point need to be maintained.

Finished 125 KVA 11/0.55KV Transformer

Oil Immersed distribution Transformer Source Manufacturer 11kV 13.8kV 15kV

Transformer maintenance

At a minimum, monthly visual inspection of all bushings and other penetrations for oil leaks (pressure taps, sample taps, etc.) and oil level. Twice annual inspection of cooling fans to ensure they are working properly. At least annual oil testing and analysis to monitor the condition of the transformer, also annual testing of protective devices such as temperature relays, pressure switches, etc. Clean the top of the transformer and the primary bushings.

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