Schneider Micom P127 Directional And Non-Directional Overcurrent Relay
Schneider Micom P127 relay is part of MiCOM P12x, a range of directional and non-directional overcurrent relays from single phase or earth fault up to the multifunctional three-phase P127 numerical relay with voltage protection functions. Models available: MiCOM P120, MiCOM P121, MiCOM P122, MiCOM P123, MiCOM P125, MiCOM P126, MiCOM P127
MiCOM P127 is housed in a compact 4U case in 20TE or 30TE widths, Schneider P127 Relay is fully withdrawable to facilitate easy and quick replacement. The dual-rated current input is powered by conventional 1A or 5A Current Transformers. A wide-range power supply allows a flexible auxiliary voltage to be applied from 24-250Vdc/48-240Vac. P122 also offers a compact case solution with reduced hardware and functionality where installation space is minimal.
Software features include 2 settings groups for quick switching between application configurations and customisable reflex automation, allowing logical AND, OR or NOT gates.
MiCOM P127 devices also include a rear RS485 communication port with a variety of protocols; DNP3, IEC 60870-5-103, Modbus and Courier.
Schneider Micom P127 numerical relay Main Characteristics:
| range of product | MiCOM P127 | |
| device short name | P127 | |
| relay application | Feeder | |
| protection type | Overcurrent ANSI code: 50/51 Recloser ANSI code: 79 Cold load pick-up Earth fault ANSI code: 50G/51G Lockout ANSI code: 86 Negative sequence overvoltage ANSI code: 47 Undervoltage ANSI code: 27 Overvoltage ANSI code: 59 Rate of change of frequency ANSI code: 81R Neutral voltage displacement ANSI code: 59N Thermal overload protection ANSI code: 49RMS Underfrequency ANSI code: 81L Phase undercurrent ANSI code: 37 Breaker failure ANSI code: 50BF Negative sequence overcurrent ANSI code: 46 Restricted earth fault ANSI code: 64REF Directional earth fault ANSI code: 67N Directional phase overcurrent ANSI code: 67 Overfrequency ANSI code: 81O Voltage-restrained overcurrent ANSI code: 50V/51V |
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| number of inputs | 4 current input CT…X/5 A and X/1 A 3 voltage 12 discrete |
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| number of outputs | 9 discrete | |
| communication port protocol | DNP3 IEC 60870-5-103 Modbus RTU |
Technical Details:
| [Us] rated supply voltage | 24…250 V DC 19.2?300?V 48…250 V DC 38.4?300?V 48…240 V AC 38.4?264?V |
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| control and monitoring type | Circuit breaker/contactor control | |
| network and machine diagnosis type | Fault recording Event recording Disturbance recording15?s |
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| switchgear diagnosis type | CT/VT supervision Trip circuit supervision ANSI code: TCS |
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| display type | Backlit LCD: 2 lines of 16 characters | |
| discrete input voltage | 24…250 V DC 19.2 V standard variant 48…250 V AC 19.2 V standard variant 48…250 V DC 105 V further option 48…250 V DC 77 V further option 48…250 V DC 154 V further option 48…240 V AC 105 V further option 48…240 V AC 77 V further option 48…240 V AC 154 V further option |
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| communication port support | RS232 RS485 |
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| Complementary | ||
Micom P127 Relay Environment:
| type of measurement | Current | |
| height | 177?mm total: 156?mm embedded: |
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| width | 155?mm | |
| depth | 249.6?mm total: 223?mm embedded: |
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| device mounting | Flush | |
Our catalog of Schneider Micom Protection Relays provides leading and reliable protection and control for any network application. The latest Protection Relays also offer comprehensive security and dependability for your electrical grid, from overcurrent and arc protection to distance and differential protection of the transmission line. Our product range offers solid protection with advanced communications such as the IEC 61850 to give you peace of mind in protecting your grid. Contact us to get Schneider Micom P127 relay?price!
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