为提高厂用低压电动机的动力熔断器运行的可靠性,防止发生()运行以烧毁电动机,熔断器熔丝应按照电动机端部短路电流来选择。...
Monday, October 24, 2022
空气在空压机中被压缩时温度会()。A、缓慢升高B、缓慢降低C、急剧升高D、急剧降低仓式泵...
Tuesday, May 7, 2024
进行汽轮机高中压主汽门严密性试验,额定参数下,高中压主汽门全关时...
Sunday, September 11, 2022
运行中应始终将吸收塔内的浆液密度保持在()kg/m3左右。A、1050B、1080C、1150D、1250...
Sunday, January 21, 2024
Tuesday, October 25, 2022
一级除盐系统中主要包括强酸阳离子交换器、()、强碱阴离子交换器。...
Tuesday, September 13, 2022
为确保厂用母线电压降低后又恢复时,保证重要电动机的自启动,规定电...
Sunday, September 11, 2022
Tuesday, November 29, 2022
汽轮机负荷过低会引起排汽温度升高的原因是()。A、真空过高B、进汽温度过高C、进入汽轮机的蒸汽流量过低,不足以带走鼓风摩擦损失产生的热量...
Wednesday, June 28, 2023
Monday, September 12, 2022
Saturday, September 10, 2022
Tuesday, September 13, 2022
Wednesday, October 18, 2023
Monday, September 12, 2022
Wednesday, September 27, 2023
Tuesday, September 13, 2022
变压器在运行中,各部分的温度是不同的,其中()的温度最高,铁芯的...
Monday, September 12, 2022
低压除氧器溢流放水电动门联锁开()mm,联锁关()mm。...
Thursday, January 18, 2024
大容量汽轮机组“OPC”快关保护动作时,将关闭高压调速汽门。...
Sunday, September 11, 2022
随着蒸汽压力的增高,汽水重度差减少,这就使汽水更难分离,增加了蒸汽带水的能力。...
Thursday, January 26, 2023