延安干式变压器节温器故障导致冷却液温度过高(1)故障现象 某电站用C系列增压型机，空载运转时，冷却液温度达到正常值后，逐渐缓慢上升，但是带负载后，冷却液温度上升幅度较快，直至“开锅”，但卸掉负载后，温度又慢慢下降。(2)故障查找分析 由于该型电站使用时间不长，而且是按标准加注的冷却液。因此，故障点可能是冷却液有泄漏或者节温器有故障。在确保冷却液的数量符合规定后开机并且带负载进行检查，发现冷却系统外部无泄漏现象，而且排烟无明显异常。将2个节温器拆卸后进行试验，即将节温器放人带温度计的盛水容器内，然后缓慢加热到节温器的开启温度，如图7-10所示，发现右侧的节温器不能正常开启。C系列机有2个节温器，温度较低时，2个节温器处关闭状态，即主阀门均关闭，而副阀门打开，冷却液流向旁通水道，进行小循环当温度达到节温器主阀门开启温度时，2个节温器主阀门开始开启，处中间状态(见图7-10b)，此时主、副阀门均打开，部分冷却液流向散热器，大、小循环同时进行当温度达到节温器主阀门全开温度时，2个节温器主阀门全开，而副阀门全关，冷却液全部流向散热器进行大循环，此时左边节温器的副阀门将旁通通道关闭。可知，2个节温器中右侧的节温器不能正常开启，将使大循环的水流量减少，导致带负载后水温过高。由于大循环仍能部分进行，因而空载时水温正常。检查节温器工作运行是否正常的方法有将节温器放入带温度计的盛水容器内；缓慢加热到节温器开启温度，保持5min，检查节温器是否开启；继续加热使水温达到节温器阀门全开的温度，保持5 min，测量节温器的升程；另外，当温度下降时，检查节温器阀门是否紧贴阀座，上述检查中若有一项不良，则应更换节温器。(3)故障排除 更换节温器后，故障排除。
动力设备（深圳）有限公司，集团旗下专业运营延安干式变压器的销售业务及其售后服务，是中国区获得授权的延安干式变压器OEM成套厂家，长期与中字央企、大型房地产商、国际连锁酒店、著名建筑企业等单位建立战略合作伙伴关系。动力在中国布局五大延安干式变压器组生产基地，延安干式变压器售后服务点可辐射中国各省会及地级市区域。l延安干式变压器区分：移动式延安干式变压器、固定式延安干式变压器、超静音式延安干式变压器、机组载式延安干式变压器。l常见延安干式变压器功率（千瓦）范围：50KW至1000KW功率段。更多有关延安干式变压器的最新产品和技术内容，请登录延安干式变压器官网：
http://www.11fdj.com延安干式变压器组的技术指标与其稳定性领先全球：高压注入(HPI)PT全权电子燃油系统。HPI G-Drive采用PT燃油系统由控制系统(GCS)控制器,这是提供off-engine安装延安干式变压器组的控制面板。量子控制一个特定的燃料系统板与HPI-PT燃油系统接口,提供了一个引擎保护包给大客户的灵活性和成本有效的替代控制设计和完整的权威electroni的好处。nCTT(涡轮增压技术)HX82 HX83涡轮增压利用排气能量与更高的效率改进的排放和燃料消耗。n低温冷却后,两泵双回线(2 p2l)。n黑色金属铸造球墨铸铁(FCD)活塞-高强度设计提供卓越的耐久性。nG-Drive集成设计,每个组件都有专门为G-Drive产品开发和严格的测试,确保高性能,耐久性和可靠性。n服务和支持——G-Drive以上信息由深圳动力官方发布，未经允许请勿转载！Cummins power equipment (shenzhen) co., LTD., corp., a professional operating cummins diesel generator sales and after-sales service, is China authorized OEM kit manufacturer of diesel generator, and for a long time in the state, large real estate developers, famous international hotel chain, construction enterprises and other units to establish strategic cooperative partnership. Cummins power layout in China five largest production base for diesel generator set, generator after-sales service point radiation China provinces and cities area.lgenerator to distinguish: portable generators, stationary generators, silent type generator, vehicular power generators.lcommon range of generator power (kw) : 50 kw to 1000 kw power.More about the latest products and technology content diesel generators, please log in the generator's official website:
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Cummins High Pressure Injection (HPI) PT full authority electronic fuel system.The HPI PT fuel system is managed by a G-Drive Governor Control System (GCS) controller, which is provided for off-engine mounting in the genset control panel. The Quantum Control has a specific fuel system board to interface with the HPI-PT fuel system and provides an Engine Protection package giving greater customer flexibility and cost effective alternatives in the control design and the benefits of Full Authority electronic control.
nCTT (Cummins Turbo Technologies) HX82/HX83 turbo-chargingutilizes exhaust energy with greater efficiency for improved emissions and fuel consumption. nLow Temperature After-cooling- Two-pump Two-loop (2P2L). nFerrous Cast Ductile Iron (FCD) Pistons- High strength design delivers superior durability. nG-Drive Integrated Design- Each component has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability. nService and Support- G-Drive products are backed by an uncompromising level of technical support and after sales service, delivered through a world class service network. nCoolpac Integrated Design-Products are supplied complete with cooling package and air cleaner kit for a complete power package. Each component has been has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability.
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