269PLUS-DO-211-100N-120VAC Motor protection system

269PLUS-DO-211-100N-120VAC is a motor protection system from the 269 Plus Motor Management Relay series, produced by GE Multilin. This microprocessor-based protection system is designed to be used in conjunction with 3-phase motors as they are operated near their hardware limits. This protection system can monitor and control the condition of the attached motor in both accelerated and running/steady state conditions. This relay is the drawout version of the protection system. It has Phase and Ground Current Transformers (CTs) of 2:5 and 2:5 respectively. This system also has a 100 ohm nickel resistance thermal detector (RTD). The control voltage for this model is 120 VAC.

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Description

Product Description

269PLUS-DO-211-100N-120VAC is a motor protection system from the 269 Plus Motor Management Relay series, produced by GE Multilin. This microprocessor-based protection system is designed to be used in conjunction with 3-phase motors as they are operated near their hardware limits. This protection system can monitor and control the condition of the attached motor in both accelerated and running/steady state conditions. This relay is the drawout version of the protection system. It has Phase and Ground Current Transformers (CTs) of 2:5 and 2:5 respectively. This system also has a 100 ohm nickel resistance thermal detector (RTD). The control voltage for this model is 120 VAC.

This motor protection system is able to provide critical protection from thermal effects while in operation. The system does this by using RTD monitoring. The system is then able to perform thermal modeling based on the associated thermal capacity. The protection system uses exponential cooldown to match the cooling rates of the actual motor. Due to the steep initial cooling of the system, the relay can attain a higher load cycling. The key inputs of the protection system are the speed switch input, the differential relay input, and the spare input. The speed switch input allows for an external speed device to be utilized. The differential relay input gives the operator the ability to close the contacts from an external differential relay. The spare input, which can be configured for either a standard or custom contact input, allows for identification of the circuit breaker condition.

Motor protection system

Frequently Asked Questions about 269PLUS-DO-211-100N-120VAC

What order specifications are attributed to a Multilin 269PLUS-DO-211-100N-120VAC digital relay?
The GE Multilin 269PLUS-DO-211-100N-120VAC Motor Management Relay is a digital relay designed to manage and protect AC medium sized motors that have a variety of different characteristics. The 269PLUS-DO-211-100N-120VAC is a D/O version which means it can be removed for testing (benchtop and in-case) without losing motor power. The drawout versions have required specification for phase CT, Ground CT in addition to relay fail safe code, and relay contact arrangement. For a 211 configuration, the digital relay has a phase CT and a ground CT that are :5. The relay fail safe code is as follows: Trip = FS, Alarm = NFS, Aux1 = NFS, Aux2 = FS. Finally the relay contact arrangement is N.O, N.O, N.O for the Alarm, Aux1, and Aux2 relays respectively.

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