ADR244A relay provides integrated Protection, Control, and Monitoring functions for Induction motors. Draw-out/Non-draw-out versions are available based on ordering information.
Specification of ADR244A Motor Protection Relay
| ANSI Code | Description |
| CLP | The cold load pick up |
| 37 | Under current protection |
| 46 | Negative Phase Sequence Protection |
| 46BC | Broken Conductor Detection |
| 47 | Phase Reversal Detection |
| 48 | Number of starts |
| 49 | Thermal overload Protection |
| 50 | Instantaneous/Definite Time Phase Over Current Protection |
| 51 | Inverse Time Phase Over Current Protection |
| 50N | Instantaneous/Definite Time Ground Overcurrent Protection |
| 50LR | Locked rotor/Motor stall Protection |
| 51N | Inverse Time Ground over Current Protection |
| 64G | High Impedance Restricted Earth Fault Protection |
| 50BF | Breaker Failure |
| 86 | Lockout (Trip command) |
Application of ADR244A numerical multifunction relay
ADR244A numerical multifunction relay designed for induction motor protection/feeder protection applications. Relay designed with fast and selective tripping ensures the stability and availability of electrical power system. ADR244A relay applies for protection, control & monitoring of motor/radial and ring main feeder to achieve sensitivity and selectivity on phase, ground faults and unbalanced load conditions.
