269PLUS-100N-120保护中型工业交流电机及其机械系统

269PLUS-100N-120是由GE Multilin制造的电机管理继电器。这个继电器是100欧姆，有一个镍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。

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269PLUS-100N-120保护中型工业交流电机及其机械系统

【功能描述】

ANSI装置14为速度保护装置，ANSI装置27为欠流/最小负载保护装置，ANSI装置38为电机/负载过温保护装置，ANSI装置46为不平衡(负序)保护装置，ANSI装置48为多次启动/锁住转子保护装置，ANSI装置49为定子绕组过温保护装置，ANSI装置49和41为过载曲线/FlexCurve保护装置，ANSI装置50为短路机械堵塞/快速跳闸保护装置，ANSI装置50G/51H为零序接地故障保护，ANSI装置50N/51N为残余接地故障保护，ANSI装置52B为断路器保护，ANSI装置74为一个报警继电器/两个辅助继电器保护，ANSI装置86为主跳闸继电器/辅助继电器号。1 /没有。2保护中，ANSI装置87为差动继电器触点输入保护，ANSI装置87为差动继电器触点输入保护，ANSI装置66为每小时起动保护，ANSI装置47为伏特反相保护，ANSI装置27为欠压/频保护，ANSI装置为功率因数保护。

关于269PLUS-100N-120的常见问题

269PLUS-100N-120 Multilin 269PLUS数字电机管理和保护继电器的一些保护特性是什么?

269PLUS-100N-120 Multilin GE继电器设计用于保护中型工业交流电机及其机械系统。当电机加速到全速运行时，电机在运行和启动条件下由269PLUS-100N-120提供保护。如果电机过载，如果启动之间的时间不够，或者如果加速时间或每小时启动不理想，那么根据特定的电机可能会发生报警或跳闸。

对于Multilin GE电机管理269PLUS-100N-120数字继电器，什么是不平衡负序电源电压?

269PLUS-100N-120 Multilin GE继电器用于电机管理和保护，提供防止不平衡或缺相的保护。电源电压不平衡是指负序电流大幅增加。这种情况会导致高转子加热，从而缩短转子的寿命。269PLUS-100N-120 Multilin GE数字继电器将计算负序和正序电流之间的比率，以产生a

269PLUS-100N-120保护中型工业交流电机及其机械系统

269PLUS-100N-120 is a motor management relay that is manufactured by GE Multilin. This relay is 100 Ohm and has a nickel RTD. The shipping box is 11.40 inches x 7.50 inches x 16.00 inches (W x H x D). The shipping weight is 7.75 lb. The ambient temperature for storage and operation must fall between -25°C-60°C.

ANSI device 14 is the speed device protection, ANSI device 27 is the undercurrent/minimum load protection, ANSI device 38 is the motor/load bearing overtemperature protection, ANSI device 46 is the unbalance (negative sequence) protection, ANSI device 48 is the multiple starts/locked rotor protection, ANSI device 49 is the stator winding overtemperature, ANSI devices 49 and 41 are the overload curves/FlexCurve protections, ANSI device 50 is the short circuit mechanical jam/Rapid Trip, ANSI device 50G/51H is the zero sequence ground fault protection, ANSI device 50N/51N is the residual ground fault protection, ANSI device 52B is the breaker protection, ANSI device 74 is the one alarm relay/two auxiliary relays protection, ANSI device 86 is the main trip latched relay/auxiliary relay no. 1/no. 2 protection, ANSI device 87 is the differential relay contact input protection, ANSI device 87 is the differential relay contact input protection, ANSI device 66 is the starts per hour protection, ANSI device 47 is the volts phase reversal protection, ANSI device 27 is the undervoltage/frequency protection, and ANSI device is the power factor protection.

Frequently Asked Questions about 269PLUS-100N-120

What are some protection characteristics of the 269PLUS-100N-120 Multilin 269 PLUS digital motor management and protection relay?

The 269PLUS-100N-120 Multilin GE relay is designed to protect medium sized industrial AC motors and their mechanical systems. The motor is provided protection with the 269PLUS-100N-120 under running and starting conditions when it is accelerating up to full running conditions. If the motor is overloaded, if the time is not sufficient between starts, or if the acceleration time or starts per hour is not ideal then an alarm or a trip may occur depending on the specific motor.

For the Multilin GE Motor Management 269PLUS-100N-120 Digital Relay, what is an unbalanced negative sequence supply voltage?

The 269PLUS-100N-120 Multilin GE relay for motor management and protection to provide protection against unbalance or phase loss. An unbalanced supply voltage is when there is a great increase in negative sequence current. This occurrence can lead to high rotor heating which can shorten the life of the rotary. The 269PLUS-100N-120 Multilin GE digital relay will compute a ratio between negative and positive sequence currents to produce a