Abstract

Domestic diesel-generator units of M310 reactor nuclear power plants at present adopt the French standard RCC-E 2005 emergency for periodic tests. During low-power periodic tests, the diesel-generators are not adequately protected, and there is a risk of serious damage to equipment. This article analyzes in detail the provisions of the IEEE 387 standard for the periodic tests of emergency diesel-generator unit, improves the periodic tests of the emergency diesel-generator unit according to the IEEE 387 standard, cancels the original low-power tests, and uses the test during the normal operation of the unit in order to solve this problem. The grid-connected test method and detailed analysis of the improved test content make the EDG periodic test method more economical and safe. The improvement has been approved by the nuclear safety regulatory agency, which provides an important reference for the related periodic test improvement of nuclear power plants.

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