500 KVA Dry Type Step Down Transformer in South Africa

500 KVA Dry Type Step Down Transformer in South Africa

Project Background

In South Africa, the rapid development of the mining, industrial sectors, and urbanization has significantly increased the demand for stable and reliable power supply. Particularly in remote areas, power supply challenges are prevalent due to harsh environmental conditions. To address these power supply issues, a mining company in South Africa opted for a 500 KVA Epoxy Resin Cast Delta-Star Dry-Type Step-Down Transformer to ensure the continuous and reliable operation of its production lines and equipment.

Performance Results:

• Stable Operation: After several months of continuous operation, the transformer demonstrated high stability, ensuring uninterrupted power supply to the mining operations.
• Reduced Failure Rates: Compared to traditional oil-immersed transformers, the dry-type epoxy resin cast transformer exhibited significantly lower failure rates, avoiding risks such as oil leakage and fire.
• Energy Efficiency: The transformer’s efficient design resulted in lower energy losses during prolonged operation, helping the mining company reduce operational costs.
• Extended Lifespan: The transformer has performed well in the harsh environment, requiring minimal maintenance and offering an extended service life.

Product Introduction

This 500 KVA epoxy resin cast dry type transformer was delivered to South Africa in 2012. The rated power of the dry type transformer is 500 KVA, the primary voltage is 6.6 KV and secondary voltage is 0.55KV with delta star connection. Cast resin technology provides excellent insulation and environmental protection, this together with the foil winding technology inside the resin offers the ultimate dry type transformer in terms of dielectric performance and short circuit withstand ability and ensures long term reliability for both distribution and special applications. cast resin transformers can be supplied with either aluminum or copper windings together with possibility of class F or class H insulation system, they can be designed to in-door or out-door installation with different enclosures.

We provide one-package service from consulting, quoting, manufacturing, installation, commissioning, training to after sale services, our products are now operating in more than 50 counties in the world. We aim to be your most reliable supplier as well as your best partner in business!

Advantages

Fire resistant /Self-extinguishing(F1)

Environmental class(E2) and climatic class (C2)

From IP00-IP56 enclosure with AN, AF, ANAF or AFWF cooling

Maintenance free

Environmental friendly ,＞90% of material recyclable

Temperature control system

Built-in PT100 probes in 3 phase windings to detect the real-time temperature of windings and cycle display them in the digital screen.

Open circuit alarm and fault self-check alarm display and signal output.

3 stages automatically actions while the temperature reached to the set value, 1st stage the cooling fans start automatically, 2nd stage high temperature alarm,3rd stage over temperature trip.

Fans manual/auto control switch, timing start/stop, history data output.

4-20mA current output

RS485 Modbus communication protocol

Environment temperature measurement

Core temperature measurement

Scope of Supply

Product: resin cast dry type transformer

Voltage level: up to 35KV

Rating level: up to 20MVA

The transformer can be designed according to customer’s requirements

Technical Data Sheet

500 KVA Dry Type Transformer specifications and data sheet

General Arrangement Drawing

500 KVA Dry Type Transformer delivery and ready to ship