EATON MP-3000 Motor Protection Relay

EATON MP-3000 Motor Protection Relay

DESCRIPTION

The MP-3000 is an advanced microprocessor-based motor protection relay that is easy to set up and use. It monitors, controls, and protects motors against overload, thermal damage to rotor or stator, electrical faults, and excessive starting, and many process equipment failures. Advanced algorithms and thermal models give safe operation over a wide range of conditions. The MP-3000 protects 50 or 60 Hz three-phase motors of any size or voltage level. It can protect induction or synchronous motors, with or without RTDs. The relay is frequently installed in motor starters or switchgear.

Protection

Intel-I-Trip I2t Overload Protection (49/51) 

Locked-rotor protection (49S/51) 

Ultimate trip current (51) 

Negative sequence current/phase unbalance and reverse phase protection (46) 

Instantaneous overcurrent trip (50) 

Ground fault protection (50G) 

RTD trip with accessory URTD module (49/38) 

Underload trip power and current (37) 

Starts per time limit (66) 

Jam or stall trip (51R) 

Zero-speed switch trip (14) 

I2t Auto or manual reset (86) 

Fail-safe or non-fail-safe trip modes

Alarming

Ground fault 

I2t Overload 

Jam / Stall 

Underload 

Phase unbalance 

RTD temperature with URTD module

Control Features

Transition control for reduced voltage starters 

Incomplete sequence (process feedback) detection and trip 

Permits user-set number of cold starts Limits number of starts per time 

User sets minimum time between starts 

Antibackspin (time from stop to next start) delay 

Current-based process load shedding and restoration Long acceleration timing feature 

Motor stop input for synchronous motor and condenser applications Remote trip input 

Differential trip input Emergency override clears blocks to motor restarting (if enabled) 

Program settings while motor runs, with controlled changeover (if enabled) 

Disarmed mode for commissioning and checking in a running process