描述
1756-IF4FXOF2F/A
根据国家气象局风能太阳能评估中心划分标准,将我国太阳能资源地区分为四类,不同区域辐照度差异较大。即使在同一资源地区,不同地方的全年辐射量也有较大差异。例如,同是I类资源区的西藏噶尔和青海格尔木,噶尔的全年辐射量为7998MJ/m2,比格尔木的6815MJ/m2高17%。意味着相同的系统配置,即相同的容配比下,噶尔地区的发电量比格尔木高17%。若要达到相同的发电量,可以通过改变容配比来实现。共享数据是第四次工业革命的燃料,获取数字化信任即将成为未来成功的关键所在,因此,失去别人的信任也必定意味着一败涂地。企业不仅需要管理客户的行为,还要防止外部人员掌握企业的机密信息。完善的风险管理系统、网络安全系统以及数据集成系统,对于帮助企业避免违规行为或是更好地管理对业务的各种冲击有着至关重要的作用。同时,必须将透明化管理作为企业的一个重要战略方针。例如,股东们在不清楚规定是如何被制定及执行的情况下,有可能会质疑公司的公平性和诚信。只有企业领导们理解了人的价值,生意才能在这个新世界中蒸蒸日上。最重要的根本立场是要懂得尊重他人。随着技术发展得越来越精湛,人类区别于其他生物最重要的一点,不是解决问题或是完成任务的能力,而是我们拥有与生俱来的感官意识、直觉判断能力,会以无法提前预测的方式关怀别人、与他人沟通、做出选择。不要过于以来数字决策,因为技术往往是封闭、孤立的,而人却可以更开放的考虑不同的背景,考虑多样新的观点,更擅长文化合作,建立多样性。公司需要能够理解工业基础设施技术的人来帮助建设人工智能和数据分析体系,但也需要人文情怀的工作者来推动合作,保持创意和特色。 在电压互感器二次回路中,除接有继电保护装置的电压线圈外,在表计回路中还接有测量表计的电压线圈。为了防止二次主回路和测量表计的电压回路短路,在电压互感器的二次主回路和测量表计回路中,需加装熔断器。其容量选择如下:
电压互感器的二次主回路中熔断器的额定电流应为最大负荷电流的1.5倍。双母线情况下,应考虑一组母线运行时,所有电压回路负荷全部切换至一组电压互感器上。一般。隋况下,总熔断器按3~5A选择,表计回路按1~2A选择。应考虑装设在二次主回路的熔断器与表计回路的熔断器在动作时间和灵敏度上相配合,即表计回路熔断器的动作时间应小于继电保护装置的动作时间,这样二次表计回路短路时,不至于引起继电保护误动作。若熔断器的动作时间不能满足速动要求,特别是熔断器经过渡电阻短路时,熔断器的动作时间很长,则应选用低压断路器。一般认为,110kV系统装有阻抗保护(距离保护)时,应在110kV电压互感器二次侧加装快速自动低压断路器。110kV以上电压等级的电压互感器一次侧不装设熔断器;35kV户外电压互感器一次侧装设带限流电阻的角形熔断器,其限流电阻的数值约为396Ω。35、10kV户内电压互感器一次侧均装设充填石英砂的瓷管熔断器。以上熔断器的额定电流均为0.5A,熔断电流为0.6~1.8A。
产品承诺:
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主营DCS系统配件
机器人系统配件
大型伺服系统配件
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专业销售进口DCS PLC系统备件模块
PLC模块,可编程控制器,CPU模块,IO模块,AI模块,通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗
15天包退换 一年质保 大量现货 国内实力库存商家