MiCOM Agile P34x
Generator Protection Systems
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GE's MiCOM Agile P34x generator protection relays provide flexible and reliable integration of protection, control, monitoring and measurement functions for a wide range of applications. The P34x relay platform is available in six models that cover most installations from small generators to sophisticated systems including generator-transformer applications and large variable speed double fed induction pumped storage machines.
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Key features:
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Comprehensive protection functions, flexible communications options with a number of protocols and ports
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Generator turbine abnormal frequency protection monitors the accumulated time spent at each frequency band
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Check synchronization function with an option to compensate for magnitude and phase angle
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User-friendly programmable scheme logic allows easy customization of the protection and control functions
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Current loop analogue inputs and outputs for remote monitoring
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No internal batteries in GE-branded models – removes a maintenance item and eases air-freight logistics
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Binary inputs ESI48-4 EB2 compliant
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Binary inputs offer programmable pickup voltage thresholds and filtering enabling a truly universal application
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High break output contacts eliminate reliance on auxiliary devices
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Unique low frequency protection for variable speed double fed induction machines
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Rotor earth fault protection
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Harsh environment protection extends the life of the product
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Main Characteristics
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Sensitive rotor earth fault protection using low frequency injection method
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Harsh Environment Option to protect against corrosive gases such as H2S or SO2
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Generator and transformer thermal overload, transformer loss of life and through fault monitoring
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Extensive protection for large machines such as pole slipping and 100% stator earth fault protection (3rd harmonic and low frequency injection method)
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Models
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P342 Small Generator Management IED
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P343 Medium to Large Sized Generator Management IED
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P344 Generator Management IED with 2 Neutral Voltage Inputs
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P345 Large Generator Management IED with 100% Stator Earth Fault
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P346 Small Generator Management IED with Differential
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P348 Variable Speed Double Fed Induction Machine protection IED
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P391 Rotor Earth Fault Unit
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Software
The Agile Generator/DG Interconnection/DLR P341-6 IEDs are now available with software 38/72. This software allows new enhancements and protection improvements in P341-6 range of products.
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The IEDs available with the new software are:
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P341 Interconnection/DLR: Hardware P (P341) / Software v38 (standard), v72 (with DLR)
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P342-6 Generator: Hardware P (P342), M (P343/4/5/6) / Software v38
The new software features:
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Enhanced power protection with 4 stages of single phase power/VAR (P341-6) selectable as A/B/C phase or 4 stages wattmetric power/VAR (P345) and 4 stages of 3 phase power/VAR protection (P341-6)
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New minimum power setting reduced to 0.2%Pn for large generator reverse power applications
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New user curves for overcurrent, voltage dependent overcurrent, earth fault, SEF, under/overvoltage, NVD, V/Hz for creation of user specific characteristics eg for undervoltage fault ride through applications
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Independent voltage dependent overcurrent (51V) and underimpedance (21) protection
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New field failure directional line and increase in setting ranges for field failure elements
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3rd stage of undervoltage protection
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Enhanced cybersecurity
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New PSL counters and timers settable in PSL or in settings enables more complex logic schemes to be created such as equivalent logic to TP2xx pole slipping (de-synchronization) relay
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A large range of communications protocols including IEC61850 8-1 and new DNP 3.0 over Ethernet
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New XCPU3 with extended memory, new opto input and PSU design (P and M hardware)
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MiCOM Agile P34x Brochure
MiCOM Agile P34x Manual