Project Overview

Before a 1000kV ultra-high voltage substation is energized, comprehensive testing and verification are essential to ensure the safety and reliability of the power system.

Sansion Power participated in a high-voltage testing project at a 1000kV substation, providing professional high voltage testing equipment and on-site technical support during the commissioning process.

Due to the extremely high voltage level and complex operating environment, testing requirements for ultra-high voltage substations are more demanding than conventional power projects. Accurate measurement, reliable equipment performance, and strict testing procedures are critical to achieving dependable test results.

High Voltage Testing Process at the Substation Site

During this project, Sansion Power’s engineering team completed the installation, connection, and commissioning of the high-voltage test system on site.

Before the substation was put into operation, engineers focused on several key aspects:

• Proper installation and connection of testing equipment
• Verification of testing system parameters
• Safe and controlled voltage application
• Accurate measurement and data recording
• Evaluation of high-voltage equipment performance

Every step of the testing process directly affects the reliability of the final results.

Importance of Testing Before Energization

For ultra-high voltage substations, testing is not only a technical requirement — it is an important process for identifying potential risks before operation.

Reliable testing helps engineers:

• Verify insulation performance of high-voltage equipment
• Confirm equipment condition before grid connection
• Obtain accurate data for commissioning decisions
• Improve long-term operational reliability of the power system

In large-scale power infrastructure projects, every measurement and every procedure matters.

Sansion Power High Voltage Testing Solutions

With experience in high-voltage testing applications, Sansion Power provides testing solutions for:

• Ultra-high voltage substations
• Power transformers
• GIS and switchgear
• High-voltage cables
• Electrical equipment manufacturers and testing laboratories

From equipment preparation and system commissioning to on-site testing support, Sansion Power works with engineers and project teams to support reliable power system development worldwide.