This account details the design and construction of a sophisticated tracking wheel for the accelerated aging of polymer insulators by subjecting them to surface contamination and high voltage. Automated control of wet-dry cycles is achieved by means of a computer-controlled lift mechanism that operates in tandem with the rotation. The applied voltage is continuously variable and can accommodate insulators of mixed lengths. The design incorporates a fail-safe control system that automates the selected test cycle, provides an intuitive user interface, and integrates multiple safety measures. This is achieved by implementing a programmable logic controller with digital and analog inputs and outputs. An associated ladder logic program automates the actuation of electromechanical hardware while also processing the inputs provided from control hardware, such as limit switches, optical encoders, variable frequency drives, and sensors. A touch-screen human interface module provides feedback and allows the user a means of input. Programmed fault detection, flood sensors, and a trapped key system increase the level of user safety and provide environmental and infrastructure protection.

中文翻译：

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用于绝缘材料测试的先进跟踪轮的设计和构造

这个帐户详细介绍了一个复杂的跟踪轮的设计和构造，用于通过使聚合物绝缘体经受表面污染和高压来加速老化。干湿循环的自动控制是通过计算机控制的升降机构实现的，该升降机构与旋转协同工作。施加的电压是连续可变的，可以适应混合长度的绝缘体。该设计包含一个故障安全控制系统，可自动执行选定的测试周期，提供直观的用户界面，并集成多种安全措施。这是通过实现具有数字和模拟输入和输出的可编程逻辑控制器来实现的。相关的梯形逻辑程序可自动启动机电硬件，同时处理控制硬件提供的输入，例如限位开关、光学编码器、变频驱动器和传感器。触摸屏人机界面模块提供反馈并允许用户进行输入。可编程故障检测、洪水传感器和被困关键系统提高了用户安全水平，并提供环境和基础设施保护。