FOXBORO FBM240-P0917GZ 隔离开关 建立和安全运行的影响均较大

FBM240-P0917GZ 隔离开关是一种主要用于“隔离电源、倒闸操作、用以连通和切断小电流电路”的开关器件，它无灭弧功能，只能在没有负荷电流的情况下分、合电路。FBM240-P0917GZ 隔离开关的主要特点是无灭弧能力，只能在没有负荷电流的情况下分、合电路。在分位置时，触头间有符合规定要求的绝缘距离和明显的断开标志；在合位置时，能承载正常回路条件下的电流及在规定时间内异常条件（例如短路）下的电流的开关设备。实际应用中，FBM240-P0917GZ 隔离开关一般用作高压隔离开关，即额定电压在1kV以上的隔离开关。由于其工作原理及结构比较简单，但是由于使用量大，工作可靠性要求高，对变电所、电厂的设计、建立和安全运行的影响均较大。此外，德力西电气小型隔离开关模数化总开关DZ47G2P、施耐德电气Vario系列负荷开关本体+手柄VCF01C等都是市场上的常见品牌和型号。FBM240-P0917GZ 隔离开关的主要特点包括：无灭弧能力：隔离开关只能在无负荷电流的情况下分、合电路，不能用于断开负荷电流。结构简单、体积小、重量轻：隔离开关一般结构比较简单，体积小，重量轻，便于安装和维护。动作快：隔离开关的触头一般采用滑动触头，动作速度快，可以快速地分、合电路。可靠性高：隔离开关的使用环境比较简单，一般不需要特别复杂的机械结构和控制系统，因此可靠性较高。价格较低：由于隔离开关的结构比较简单，制造成本较低，因此价格也比较低。总的来说，隔离开关是一种简单、可靠、实用的开关器件，在电力系统中有着广泛的应用。

FBM240-P0917GZ

FBM240-P0917GZ isolation switch is a switching device mainly used for isolating power supply, switching operation, and connecting and cutting off small current circuits. It has no arc extinguishing function and can only open and close circuits without load current. The main feature of FBM240-P0917GZ isolation switch is that it has no arc extinguishing ability and can only open and close the circuit without load current. When dividing positions, there should be insulation distances and obvious disconnection marks between the contacts that meet the specified requirements; A switchgear that can withstand the current under normal circuit conditions and the current under abnormal conditions (such as short circuits) within a specified time when in the closed position. In practical applications, the FBM240-P0917GZ isolation switch is generally used as a high-voltage isolation switch, that is, an isolation switch with a rated voltage of 1kV or above. Due to its simple working principle and structure, but with high usage and reliability requirements, it has a significant impact on the design, establishment, and safe operation of substations and power plants. In addition, Delixi Electric’s modular main switch DZ47G2P for small isolation switches and Schneider Electric’s Vario series load switch body+handle VCF01C are common brands and models in the market. The main characteristics of FBM240-P0917GZ isolation switch include: no arc extinguishing ability: the isolation switch can only open and close the circuit without load current, and cannot be used to disconnect load current. Simple structure, small volume, and light weight: Isolation switches generally have a simple structure, small volume, and light weight, making them easy to install and maintain. Quick action: The contacts of the isolation switch generally use sliding contacts, which have fast action speed and can quickly open and close the circuit. High reliability: The use environment of isolation switches is relatively simple, and generally does not require particularly complex mechanical structures and control systems, so the reliability is high. Low price: Due to the simple structure and low manufacturing cost of the isolation switch, the price is also relatively low. Overall, isolation switches are a simple, reliable, and practical switching device with extensive applications in power systems.