Project for Rosneft Distribution Substation Project (Russia)

March 14, 2023

Project Overview

Rosneft, one of Russia’s leading oil and energy companies, initiated a distribution substation project to support regional power infrastructure in Russia. The scope of work included the deployment of circuit breakers across multiple distribution substations with strict requirements for reliability, environmental resistance, and long-term operational stability.

The project covered a total of 84 distribution substations and was scheduled for delivery and commissioning in Samara, Russia, by December 2023.

Project Location

Samara, Russia

Project Scope

The project involved the supply of molded case circuit breakers for distribution substations operating under harsh outdoor conditions. A total of 20,000 molded case circuit breakers were supplied and installed across all substations.

All products were required to meet customized electrical and environmental specifications defined by Rosneft.

Products Supplied

The supplied products included customised moulded case circuit breakers with the following specifications:

• Rated current range from 100A to 2000A
• Available in 3-pole and 4-pole configurations
• Customized enclosure color
• Electrical performance tailored to project-specific requirements

Technical Requirements

The distribution substations were designed for outdoor operation in regions with extremely low winter temperatures. To ensure reliable performance, the following technical requirements were specified:

• Stable operation at ambient temperatures as low as minus 40 degrees Celsius
• Long-time delay protection with a six-times delay characteristic
• Breaking service capacity Ics equal to ultimate breaking capacity Icu
• Full compatibility with all molded case circuit breaker accessories

The required accessories included alarm contacts, auxiliary contacts, shunt releases, undervoltage releases, insulation covers, electrical operating mechanisms, and manual operating mechanisms. All accessories were required to be fully matched and tested with the circuit breakers to ensure reliable system integration.

Research and Development Support

To meet the project’s technical and environmental demands, the company’s research and development center carried out a comprehensive product upgrade program lasting over six months.

The upgrade process included internal structural optimization, replacement of key internal components, and the selection of materials more suitable for low-temperature operation. Extensive electrical, mechanical, and environmental testing was conducted to validate performance under extreme conditions.

As a result, the upgraded products achieved stable and reliable operation while fully meeting the customer’s specifications.

Project Delivery and Results

After completing product development, testing, and validation, all customized molded case circuit breakers were delivered to Samara and installed across the distribution substations.

The products successfully passed final acceptance and entered service as part of Rosneft’s power distribution infrastructure. Performance after commissioning met all operational expectations.

Project Significance

The Rosneft distribution substation project demonstrates the company’s ability to deliver large-scale customized electrical solutions for critical infrastructure applications. The project highlights strong capabilities in product customization, extreme environment adaptation, and large-volume supply.

Successful execution further reinforces experience in supporting energy and oil and gas projects with high technical and reliability requirements.