SR469-P5-HI-A20 电机管理继电器

【功能描述】

SR469-P5-HI-A20技术规格

制造商美国通用电气公司，通用电气工业系统

电源交流:70至265 V @ 48-62 Hz

系列469电机管理继电器

电流5a

协议modbus RTU/半双工

模拟输出4-20 mA

负载> 500 k

失速比冷热安全

产品描述

SR469-P5-HI-A20是GE Multilin的469电机管理继电器。这是该设备的几个版本之一，可作为新的盈余或修复使用过的库存从AX控制。SR 469系列设计用于与中压电机一起使用。他们提供电机保护与抽出结构设计的快速更换时间。SR469-P5-HI-A20可现场升级。

SR469-P5-HI-A20提供四个4-20 mA模拟输出。该装置有CE标志。这是一个标准的5A相CT次级装置。该机组的控制功率额定为90-300 VDC, 70-265 VAC @ 48-62 Hz。其中一个接地CT输入设计用于GE电源管理，而另一个用于接地CT。该单元的VT输入将容纳delta或ye配置的VT。该设备配有一个机箱。

SR469-P5-HI-A20的电机热建模提供了RTD偏置，电机冷却时间常数，启动抑制和紧急重启，不平衡偏置和过载曲线。该机组还具有冷热安全失速比。通过阅读原始GE Multilin手册，可以更深入地了解这些功能。

SR469-P5-HI-A20包括一个带有LCD显示屏的前面板，几个LED指示灯区域，一个专用的输入键盘和一个通信端口。机组的侧面设计为允许气流。这使得机组保持在适当的工作温度范围内。请阅读GE手册和产品用户指南以获取更多信息。

关于SR469-P5-HI-A20的常见问题

对于SR469-P5-HI-A20 GE电机管理继电器，是否应启用电阻温度检测器偏置?

通过使电阻温度检测器偏置，定子传感器的温度将被启用并包括在热容量的计算中。由于电阻温度检测器偏置是保护和备份继电器的元件，因此可能会发生冷却和高温异常的数据丢失。这些温度测量是偏置使用的，可以根据存储在该继电器中的热容量值进行更改。

SR469-P5-HI-A20继电器的电阻温度检测器偏置是否有一个中点?

对于电阻温度检测器偏置的中点，有一个10%的热点，允许获得数据表，加上定子在80摄氏度，这是一个F级上升。环境温度加上温升定子是设定温度的一个很好的中点，电机热温度的计算方法与中点温度相同。

GE SR469-P5-HI-A20电机管理继电器在S2设置界面中有哪些信息?

在电机电气系统上输入设备特性的设置包含在S2设置页面中。它们可以在手册的电力系统数据和仪表变压器数据标题下找到，手册可以在网上找到1601-0122-A9手册零件号。有了手册上的信息，S2设置可以按照指示编程。

SR469-P5-HI-A20 Technical specifications

Manufacturer General Electric, General Electric Industrial Systems

Power AC :70 to 265 V @ 48-62 Hz

Series 469 motor management relays

Current 5a

Protocol modbus RTU/ Half-duplex

Analog output 4-20 mA

Load > 500 k

Stalling is safer than hot or cold

Product description

The SR469-P5-HI-A20 is GE Multilin's 469 motor management relay. This is one of several versions of the device that can be used as a new surplus or to repair used stock controlled from AX. The SR 469 series is designed for use with medium voltage motors. They offer motor protection with a drawout structure designed for quick replacement times. The SR469-P5-HI-A20 can be upgraded on-site.

The SR469-P5-HI-A20 offers four 4-20 mA analog outputs. The device bears the CE mark. This is a standard 5A phase CT secondary device. The unit's control power rating is 90-300 VDC, 70-265 VAC @ 48-62 Hz. One of the grounded CT inputs is designed for GE power management, while the other is for grounded CT. The VT input to this cell will hold the VT of the delta or ye configuration. The device is equipped with a chassis.

The motor thermal modeling of the SR469-P5-HI-A20 provides RTD bias, motor cooling time constant, start suppression and emergency restart, unbalanced bias and overload curves. The unit also has a cold/heat safety stall ratio. You can learn more about these features by reading the original GE Multilin manual.

The SR469-P5-HI-A20 includes a front panel with an LCD display, several LED indicator areas, a dedicated input keyboard, and a communication port. The sides of the unit are designed to allow airflow. This keeps the unit within the proper operating temperature range. Please read the GE manual and Product User Guide for more information.

Frequently Asked Questions about SR469-P5-HI-A20

Should resistance temperature detector bias be enabled for SR469-P5-HI-A20 GE motor management relays?

By biasing the resistance temperature detector, the temperature of the stator sensor will be enabled and included in the calculation of the heat capacity. Because resistance temperature detector bias is the element that protects and backs up the relay, data loss from cooling and high temperature anomalies can occur. These temperature measurements are used offset and can be changed based on the value of the heat capacity stored in this relay.

Does the resistance temperature detector bias of the SR469-P5-HI-A20 relay have a midpoint?

For the midpoint of the resistance temperature detector bias, there is a 10% hot spot that allows the data table to be obtained, plus the stator at 80 degrees Celsius, which is an F-level rise. The ambient temperature plus the temperature rise stator is a good midpoint for setting the temperature, and the thermal temperature of the motor is calculated in the same way as the midpoint temperature.

What information does GE SR469-P5-HI-A20 motor management relay have in S2 setup interface?

The Settings for entering device characteristics on the motor electrical system are included in the S2 Settings page. They can be found under the Power System Data and Instrument Transformer Data heading of the manual, which is available online at the 1601-0122-A9 manual part number. With the information in the manual, S2 Settings can be programmed as directed.

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