269PLUS-100P-120VAC 8个可选的标准过载曲线

269PLUS-100P-120VAC是由GE Multilin制造的电机管理继电器。这个继电器是100欧姆，有一个铂金RTD。箱体尺寸为11.40英寸× 7.50英寸× 16.00英寸(宽×高×深)，重量为7.75磅。存储和操作的环境温度应在-25℃~ 60℃之间。该继电器的应用包括统计记录保存和与可编程控制器和计算机的通信，用于综合工厂控制。安装此继电器时，请记住遵循所有国家和地方电气规范。

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269PLUS-100P-120VAC 8个可选的标准过载曲线

【功能描述】

该继电器的操作特点是微机控制，键盘可编程。功能还包括48个字符显示，内置“帮助”功能，8个可选的标准过载曲线，用户自定义过载曲线能力(Flex曲线)，以及连续继电器电路自检。监测和显示功能包括负序相电流不平衡测量，接地故障(漏电)电流测量，多达六个定子RTD输入，四个额外的RTD输入，电机环境空气温度监测，根据要求显示所有设定值或实际值，并显示继电器跳闸/报警和帮助消息。继电器通信和控制功能包括一个锁存，主跳闸继电器，一个报警继电器，两个辅助继电器，紧急重启能力，跳闸前报警警告，运行过载跳闸时可选的单次重启，速度开关，差动继电器，备用输入和RS485端口(用于连接计算机和可编程控制器)。

关于269PLUS-100P-120VAC的常见问题

269PLUS-100P-120VAC的MotorMatch功能是什么?这个Multilin 269 PLUS数字继电器如何使用这个功能来保护各种中型交流电动机?

269PLUS-100P-120VAC采用电机匹配，以便收集需要保护的电机的最大适用性。该功能允许Multilin 269PLUS-100P-120VAC改变初始继电器规格，以匹配现场数字继电器测量的特性。由269PLUS-100P-120VAC数字电机管理继电器记录的主要变量是RTD输入到存储器，学习冷却时间和加速所需的学习时间。269PLUS-100P-120VAC还能够在内存中积累I2t测量值。在这种情况下，学习到的冷却时间是从运行时间到停止时间，以及从运行过载时间到正常运行时间。

269PLUS-100P-120VAC 8个可选的标准过载曲线

The operational features on the relay are that the relay is microcomputer controlled and keypad programmable. Features also include a 48 character display, a built-in “HELP” function, eight selectable standard overload curves, user-defined custom overload curve capability (Flex Curve), and a continual relay circuitry self-check. The monitoring and display features include the negative sequence phase current unbalance measurement, the ground fault (earth leakage) current measurement, up to six stator RTD inputs, four additional RTD inputs, monitoring of motor ambient air temperature, display of all SETPOINTS or ACTUAL VALUES upon request, and display of relay TRIP/ALARM and HELP messages. The relay communications and control features include one latched, main trip relay, one alarm relay, two auxiliary relays, the emergency restart capability, pre-trip alarm warnings, an optional single-shot restart on running the overload trip, the speed switch, the differential relay, the spare input, and the RS485 port (for connecting to computers and programmable controllers.

Frequently Asked Questions about 269PLUS-100P-120VAC

What is the MotorMatch feature of the 269PLUS-100P-120VAC. How does this Multilin 269 PLUS digital relay use this feature to protect various medium sized AC motors?

The 269PLUS-100P-120VAC uses Motor Match in order to glean the maximum applicability for the motor in need of protection. This feature allows the Multilin 269PLUS-100P-120VAC to change the initial relay specifications to match the characteristics that have been measured by the digital relay in the field. Primary variables that are recorded by the 269PLUS-100P-120VAC digital motor management relay are RTD input to memory, a learned cooldown time, and a learned time needed to accelerate. The 269PLUS-100P-120VAC is also able to accumulate I2t measurements in memory. The learned cooldown in this case is both from run time to stop time and from run-overload time to run-normal time.