Product Overview

The HKSSPT-7500-35 is a high-performance, oil-immersed transformer designed for demanding applications and challenging environments. Its key features include:

• High Capacity: 7500 kVA
• Voltage Rating: 35 kV
• Cooling System: ONAN/ONAF (natural air/forced air)
• Winding Material: 100% copper
• Protection Rating: IP55 (protected against dust and water jets).
• Tropicalization: Designed to withstand high temperatures and humidity.

Commissioning Process

1. Pre-Commissioning:

• Technical Optimization: The transformer’s design was optimized to meet Uzbekistan’s GOST standards, ensuring compatibility with the local power grid. This step is crucial for ensuring regulatory compliance and smooth integration into the existing infrastructure.
• Transportation and Installation: The transformer was successfully transported and installed on-site. This included securing a stable foundation, connecting all necessary wiring, and setting up the cooling system. Careful handling and installation are paramount to prevent damage during transit and installation.

2. Commissioning Tests:

• No-Load Test: This verified the transformer’s no-load losses and current, confirming they were within the specified design parameters. This is a fundamental test to assess the core losses and the magnetizing current, which are crucial indicators of transformer efficiency and performance.
• Load Test: The transformer underwent a load test with gradually increasing load levels. Key parameters like temperature rise, noise levels, and vibrations were closely monitored throughout to ensure stable operation at full capacity. This ensures the transformer can handle the expected load without any issues like overheating or mechanical failures.
• Protection System Test: The functionality of the various protection systems was validated, including overcurrent, short-circuit, and temperature protection. This critical step guarantees the safety and reliability of the equipment, preventing damage due to unexpected events.

Results

All test results met or exceeded the design specifications. The transformer demonstrated stable operation under various load conditions. The Uzbek customer expressed high satisfaction with the equipment’s performance.