This paper studies the influence of converter transformer D-bridge zero sequence circulating current on valve short circuit protection.
笔者研究了换流阀三角形侧零序环流对阀短路保护误动作的影响。
2
After the ND4 diesel locomotive made in France only operated about 30,000 km, the cylinder heads of its AGO diesel engine cracked at the bridge of two-valve seats and other places.