解决方案
The engineers sought a high-quality solution to control all pumping processes during excavation. In an international tender process, AuCom won the contract to supply electronic soft starters controlling the many 700 V, 310 kW submersible pumps needed to drain the tunnel as digging progressed.-->
工程师找出了一个高质量的解决方案来控制开挖过程中的所有抽水过程。在国际招标过程中,AuCom最终投标成功,赢得电子软起动器的供应合同;这些设施将用来控制隧道开挖中的多个700伏、310千瓦排水潜水泵。
AuCom was selected for this project ahead of its competitors for three good reasons:-->
由于以下三个主要原因,AuCom在该工程中被选定为供应商:
Soft starting provides important operating benefits in the tunnel environment.-->
软起动在隧道环境中提供重要的操作优势。
电流水平降低
Electronic soft starting reduces current levels during starting. Closed loop electronic soft starters enable motors to be started with the minimum possible start current required for the application. This reduces voltage disturbance which is important for weak or limited supplies.-->
电子软起动在起动过程中可降低电流水平。闭合回路电子软起动器确保电机以具体应用场合所需的最小可能起动电流进行起动,从而降低对弱电供应或有限电力供应的电压干扰。
卡泵
Soft starters prevent damage if the pump stalls or jams. Instead of stepping through to full voltage and subjecting the stalled pump and motor to damaging electrical and mechanical stresses, AuCom electronic soft starters will shut the plant down safely.-->
泵失速或卡泵时软起动器可防止设备损坏。AuCom电子软起动器确保装置安全关闭,使失速泵和电机不因满电压而受到破坏性电气或机械应力的影响。
液锤
When pumps suddenly stop, damage may occur from water or fluid hammer. AuCom soft starters offer a soft stop facility which ramps down the voltage supplied to the motor, causing a gentle decrease in pump and fluid velocity which in turn reduces the possibility of damage.-->
突然停泵时,可因水锤或液锤作用而导致设备损坏。AuCom软起动器提供一个软停车设施,该设施可降低施加于电机的电压,从而实现泵和液体速度柔和降低,进一步降低了设备损坏的可能性。
保护功能
AuCom soft starters offer additional protection features which make them the obvious choice:-->
AuCom软起动器提供辅助保护功能,因而成为用户显而易见的明智选择:
- reverse rotation protection 反向旋转保护
- motor over-temperature protection 电机过热保护
- overcurrent protection 过载电流保护
- phase loss protection 失相保护
- undercurrent protection 低电流保护-->
- 反向旋转保护
- 电机过热保护
- 过载电流保护
- 失相保护
- 低电流保护
-->
这些仅仅是在诸多在泵送应用场合中采用AuCom软起动器装置的部分实例。如果您需要为电机控制提供一个设计方案,请与我们联系。