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
Through temperature measurement it is found that max. thermal load is in the bridge zone between valve seats of the cylinder head.
本文通过测量气缸盖温度,找出气缸盖与气门间的“鼻梁”区域的最大热负荷处。
3
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 bridgeof two-valve seats and other places.