8440-2254 速度感应单元  用于操作控制器中包含的手动断路器

产品描述

控制部件 8440-2254 由伍德沃德公司生产。控制部分属于 easYgen-100 系列的保护伞，我们在 AX Control 从我们丰富的盈余和翻新二手库存中供应。8440-2254 型号提供 easYgen-800 型号，此特定型号配备以太网和 SD 连接。

该控制器具有丰富的功能，包括但不限于前面板上的触觉按钮，用于操作控制器中包含的手动断路器，以及配备多用途计时器的维护调度程序。

8440-2254 的规格在交流测量方面是特定的，其中一项交流测量是额定电流互感器的次级额定值，读数为 5 A，交流测量下的频率精度应为正负 .1 Hz。

8440-2254 easYgen-800 型号的尺寸为 237 mm x 172 mm x 45 mm，控制器面板开孔尺寸为 116.5 mm x 90.5 mm。easYgen-800 型号的近似重量为 .85 kg。

8440-2254 easYgen-800 控制器应严格与柴油发动机一起使用。easYgen-800 型号可以而且应该与反向发电机一起使用。

ProTech型号8440- 2254是一种120 Vac/dc设备。该系统中的三个速度感应单元都有单独的电源。这是伍德沃德超速保护装置模块化设计的一部分，可在不使原动机离线的情况下，实现单个装置的热更换和单个装置的测试等功能。

型号8440-2254中的速度感应单元A、B和C是相同的。除了拥有独立的电源外，这些装置还拥有独立的操作界面和报警系统。这三个单元被配置为三取二的投票方法。在硬件表决之前，这三个单元独立工作，用磁性拾音器(MPU)监控原动机速度，并单独进行速度计算。

组成ProTech 8440-2254型的三个单元必须用相同的触发点编程。通过连接到所有三个单元按键开关进入程序模式。由于这种伍德沃德系统的模块化设计，单位是分开编程。

8440-2254 速度感应单元  用于操作控制器中包含的手动断路器

Product description

The control unit 8440-2254 was manufactured by Woodward. The Control section falls under the umbrella of the easYgen-100 series, which we supply at AX Control from our abundant surplus and refurbished used stock. The model 8440-2254 is available in the easYgen-800 model, this particular model is equipped with Ethernet and SD connectivity.

The controller has a wealth of features including, but not limited to, tactile buttons on the front panel to operate the manual circuit breakers included in the controller, and a maintenance scheduler with a multi-purpose timer.

The specification for 8440-2254 is specific in terms of AC measurements, one of which is the secondary rating of the rated current transformer, reading 5 A, and the frequency accuracy under AC measurements should be plus or minus.1 Hz.

The dimensions of the 8440-2254 easYgen-800 model are 237 mm x 172 mm x 45 mm, and the controller panel openings are 116.5 mm x 90.5 mm. The easYgen-800 model has an approximate weight of.85 kg.

The 8440-2254 easYgen-800 controller should be used strictly with a diesel engine. The easYgen-800 model can and should be used with a reverse generator.

ProTech Model 8440-2254 is a 120 Vac/dc device. Each of the three speed sensing units in the system has a separate power supply. This is part of the modular design of Woodward Overspeed protection, which enables functions such as thermal replacement of a single unit and testing of a single unit without taking the prime mover offline.

The speed sensing units A, B, and C in model 8440-2254 are identical. In addition to having a separate power supply, these devices also have a separate operating interface and alarm system. These three cells are configured for a two-out-of-three voting method. Before the hardware vote, the three units worked independently, monitoring the prime mover speed with a magnetic pickup (MPU) and performing separate speed calculations.

The three units that make up ProTech 8440-2254 must be programmed with the same trigger point. Enter program mode by connecting key switches to all three units. Due to the modular design of this Woodward system, units are programmed separately.