FANOX 泵保护和控制面板 成品控制柜

FANOX 泵保护和控制面板

为什么要用电子继电器保护您的泵和面板免受Fanox的伤害？

为了避免在不使用液位传感器的情况下泵的干运行。

为了避免令人讨厌的绊倒。电机在出现故障时会关闭，并自动重新连接，而无需前往现场进行重置。

继电器具有热图像存储器，

它们提供额外的保护，如相位故障、相位损失和相位反转。

安装简单快捷。免维护，适用于现有安装，无需停机和将泵从其位置移除。

节省成本。

CBM–单相面板

泵运行中最关键的情况之一是干运行。FANOX单相保护面板提供的解决方案是基于测量低电流。在干运行情况下，检测到电流下降。消耗电流的减少是通过安装在保护面板上的PS-R电子继电器测量的：当达到预设的低电流值时，它会关闭泵。

CBT–三相面板

φ的余弦（Cosφ）是电压和电流强度之间的相位角的余弦值。这从满载运行电机的略低于1的值振荡到干运行电机的几乎为0的值。

因此，在干运行情况下，cosφ显著下降。这种减少由安装在FANOX三相保护面板中的PF-R继电器监测，这意味着当其低于调整值时，面板会关闭泵并保护其免受损坏。

CBS–带软启动器的三相面板

具有渐进启动和关闭功能的Fanox保护面板配有ES软启动器，以防止水锤或突然启动和关闭造成的问题。

防止干运行的保护由PF-R继电器提供，该继电器监测cosφ的值，并在其低于选定值时关闭泵。

CBM – Single Phase Panels

One of the most critical situations in pump operation is dry running. The solution offered by FANOX single-phase protection panels is based on measuring the undercurrent. In dry running situations a current decrease is detected. This reduction of consumed current is measured by the PS-R electronic relay fitted to the protection panel: when the preset undercurrent value is reached, it switches the pump off.

CBT – Three Phase Panels

The cosine of phi (Cos φ) is the value of the cosine of the phase angle between the voltage and the intensity of the electrical current. This oscillates from a value slightly below 1 for a full load operating motor to almost 0 when it is dry running.

Therefore, in dry running situations, cos φ falls significantly. This reduction is monitored by the PF-R relay installed in FANOX three-phase protection panels, meaning that when it falls beneath the adjusted value, the panel shuts down the pump and protects it from damage.

CBS – Three Phase Panels with Soft Starter

Fanox protection panels with progressive startup and shut-down are fitted with ES soft starters to prevent problems caused by water hammering or sudden start-ups and shut-downs.

Protection against dry running is provided by the PF-R relay that monitors the value of cos φ and shuts down the pump when it falls below the selected value.