变压器差动保护带负荷自动化试验装置的研制

Research and Development of the Automatic Device for the on-load Test of the Main Transformer Differential Protection

变压器差动保护带负荷试验是确保变压器差动保护各侧电流互感器二次回路接线正确,防止变压器差动保护误动、拒动的重要试验步骤。针对当前带负荷试验方式下人工计算强度大、试验时间长、试验结果存在误差等问题,研制了1种自动化试验装置,用微机计算替代人工计算,以期达到减少作业时间、提高工作效率的目的。经检测和验证达到了相关要求。

The on-load test of the main transformer differential protection is the important test procedure to ensure that there are no errors in each side rheological wiring of the main transformer differential protection,preventing maloperation and misstrip of transformer differential protection.The current operation mode exists some shortcomings such as large artificial computational intensity, long duration, high quality requirements of the workers, and the errors of results. To solve the problem, a device is developed, which reduces operating time by using computers instead of manual calculation, therefore, efficiency is improved. After our test and validation, it can meet these requirements.