Qingdao Huafengweiye Electric Power Technology Engineering Co., Ltd.

Successful Completion of 110kV Inverse Power Transmission at Qinghai Delingha Solar Thermal Project

2025-12-01

At 13:10 on November 24, the company successfully completed the 110kV inverse power transmission at the Qinghai Delingha Solar Thermal Commissioning Project, marking a significant phased achievement in overcoming key project milestones. With this accomplishment, the project team has completed four core commissioning milestones: DCS energization, shutdown transformer energization, production of qualified demineralized water in the chemical system, and the 110kV inverse power transmission, laying a solid foundation for high-quality project execution.

Since commencing work on site, the company’s project team has systematically promoted the precise implementation of various commissioning activities. During the commissioning period, the team efficiently advanced the preparation and implementation of commissioning plans for all main and auxiliary systems, completing and obtaining approval for 61 commissioning procedures, demonstrating significant achievements in building the technical documentation system. In the electrical system aspect, the project team steadily progressed with verification of circuits related to the 35kV molten salt transformer, switchgear testing and interlock checks for the startup boiler transformer, and cabinet energization. They also completed CT polarity verification, CT/PT circuit inspections, and cable withstand voltage tests for the 35kV molten salt transformer supporting the 110kV inverse power transmission, achieving comprehensive closure in electrical system commissioning and acceptance.

In the next step, the project team will continue to follow the working guideline of "Risk Mitigation, Contract Fulfillment, Management Strengthening, and Quality & Efficiency Enhancement", focusing on remaining critical tasks such as the tubular membrane system commissioning. They will orderly advance steam blowing and the unit’s first grid connection tests, promoting project commissioning completion through full-process refined management, and contributing strength to the high-quality development of the company’s new energy business.

 

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Successful Completion of 110kV Inverse Power Transmission at Qinghai Delingha Solar Thermal Project

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