GE Multilin的469系列的这种增强型能够保护和控制大中型电机系统。469-P1-HI-A20-E-H 与大多数型号的独特之处在于它带有可选的保形涂层;这种薄的聚合物层有助于保护设备免受灰尘、高温等的影响。因此，保形涂层可延长电机寿命，尤其是在危险的操作环境中。
469-P1-HI-A20-E-H 的增强型面板可分为大约四个部分：其中包括用于直接连接到运行 EnerVista 232 的笔记本电脑的 RS469 端口、用于设定点输入和编辑的重新设计键盘、扩展的 40 个字符液晶显示器以及表示系统内各种状态的 LED。
1-P469-HI-A1-E-H 型号中的“P20”表示继电器与 1 A 相位 CT 次级器件兼容。与“P5”型号表示的 5 A 相位 CT 次级相比，用户应确保标称相电流额定值与所有连接的 CT 的连接和次级额定值相对应。 不匹配的 CT 会随着时间的推移对系统造成损坏，并且无疑会导致保护减弱，即使这种损坏不会立即变得明显。
该继电器还能够自我评估、评估电机健康状况，并提供可配置的警报，以便在出现转子问题时提醒用户。 这种早期检测系统除了减少停机时间外，还减少了故障排除时间。与电机健康相关的指标也可以在通用电气 Multilin的 EnerVista 469 程序中查看，这比使用键盘手动浏览继电器的菜单更有效。
469-P1-HI-A20-E
469-P1-HI-A20-E
This enhanced version of GE Multilin’s 469 series can protect and control large and medium-sized motor systems. The uniqueness of 469-P1-HI-A20-E-H compared to most models lies in its optional conformal coating; This thin polymer layer helps to protect equipment from the effects of dust, high temperatures, etc. Therefore, conformal coatings can extend the lifespan of motors, especially in hazardous operating environments.
The enhanced panel of 469-P1-HI-A20-E-H can be divided into approximately four parts: including the RS469 port for direct connection to laptops running EnerVista 232, a redesigned keyboard for setpoint input and editing, an extended 40 character LCD display, and LEDs representing various states within the system.
The “P20” in the 1-P469-HI-A1-E-H model indicates that the relay is compatible with the 1 A phase CT secondary device. Compared to the 5 A phase CT secondary represented by the “P5” model, users should ensure that the nominal phase current rating corresponds to the connection and secondary ratings of all connected CTs. Unmatched CT scans can cause damage to the system over time and undoubtedly result in reduced protection, even if such damage does not immediately become apparent.
This relay can also self-assess and evaluate the health status of the motor, and provide configurable alarms to alert users in the event of rotor problems. This early detection system not only reduces downtime, but also reduces troubleshooting time. Indicators related to motor health can also be viewed in the EnerVista 469 program of General Electric Multilin, which is more effective than manually browsing the relay menu using a keyboard.
469-P1-HI-A20-E
469-P1-HI-A20-E
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469-P1-HI-A20-E
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