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P50 Agile P154 / P253

P50 Agile P154 / P253
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Feeder and Motor Protection Relay The Agile P154 and P253 protection relays are the latest offering from GE's P50 Agile series serving the distribution and industrial markets. The P154 and P253 Agile relays represent the ideal choice for optimised protection and monitoring of feeders and motors respectively. The P154 is an economical choice, designed for deployment in volume, in lower-voltage systems. It offers non directional overcurrent and earth fault protection, with its functions designed to cover a wide range of applications in the protection of cables and overhead lines deployed in industrial installations, public distribution networks, and substations. The P253 is designed to protect motors in industrial networks and power plants. It offers essential protection functions for motors deployed in installations from LV to MV voltage levels. The P253 relay performs an important role in many industrial processes with its diagnostic features improving asset health monitoring. The P154 and P253 relays offer supervision features such as measurement, monitoring and recording functions. Communication protocols are available for transmitting relay data to a supervisory control system via communication networks. The operator interface allows reading of measured values and simple configuration of the relay. The setting software facilitates configuration and access to all the stored information for monitoring, maintenance and troubleshooting purposes. P154 and P253 relays are housed in a robust metal case suitable for panel mounting. Protection & Control • Optimised protection for feeder/motor applications • Measurement / protection / monitoring in one box • Diagnostic / maintenance facilities Monitoring & Metering • Accurate metering for feeder applications including phase & neutral current, thermal state, positive & negative sequence current • Circuit Breaker monitoring including operation counter, trip counter, and operating time • Metering for motor applications including load current, time to thermal trip, total motor running hours • Motor start monitoring including number of starts, number of emergency starts Communications Applications Feeder Protection for: • Front USB port for local communication • Rear RS 485 port for SCADA communications • Cables and Overhead lines deployed in MV/LV networks • Backup in HV systems • Different types of earthing systems • MV industrial installations, public distribution networks and substations Motor Protection for: • Small and medium size induction motors • MV industrial installations • Flexible SCADA communication options supporting Modbus / IEC 60870-5-103 (user selectable) or DNP3.0 (ordering option) Application Flexibility • Universal, wide-range auxiliary supply • Identical form factor for feeder / motor relays

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P154 / P253 Feeder and Motor Protection Measurements • Metering of Phase currents • Metering of Neutral currents -derived and measured • Measurement of thermal state • Positive and negative sequence current • Ratio of negative to positive sequence current • Breaker operation counter • Breaker trip counter • Breaker operating time Measurements (Motor specific) • Load current • Time to thermal trip • Authorised start number • Time before another start authorisation • Last start current • Last start time • Number of starts • Number of emergency starts • Total motor running hours Functional...

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P154/P253 Feeder and Motor Protection Protection and Control General • Timed and instantaneous phase and earth fault protection (3 independent stages) • Wide range of IEC/IEEE curves • Thermal overload • Cold load pickup (P154 only) • Inrush blocking • Undercurrent/Loss of load detection • Negative sequence overcurrent • Broken conductor (P154 only) • Circuit breaker Fail • Restricted earth Fault • Trip circuit supervision • 6 Digital inputs • 6 Digital output (c/o) • 1 A/5 A CTs selection • SEF option • Latching of output contacts • Universal auxiliary power supply range • 2 Setting...

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(For setting, viewing & parameterisation) P154 and P253 support 6BI/6BO and 4 programmable LEDs and the facility exists to assign any of the logical/ physical statuses to BI/BO and programmable LEDs. This provides user the flexibility to program the relay as per the application requirements. All the output contacts are changeover type and can be configured as SR (self-reset) or HR (hand reset) through the I/O configuration setting from the front panel or through relay setting software. Front Panel Interface • Eight LEDs for status indication • Back-Lit LCD display (16x2) • Eight navigation...

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