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M-3410A Intertie/Generator Protection Relay
Description
The M-3410A Intertie/Generator Protection Relay is intended for the protection of the intertie between the
utility and dispersed generation. It is also suitable for the protection of synchronous and induction
generators. Communications and control features of the M-3410A are accomplished utilizing the M-3810A
IPScom
®
For Windows
TM
Communications Software Package from a PC platform, or M-3811A IPScom For
Palm OS
®
running on a Handspring
TM
Visor
TM
or Palm
TM
Handheld.
Metering
The relay provides metering of voltages, currents, real power, reactive power, power factor, frequency and
positive sequence impedance.
Metering Accuracies are:
Voltage:
0.5 V or
0.5%, whichever is greater (Range 0 to 600 V)
Current:
5 A rating,
0.1 A or
3%, whichever is greater (Range 0 to 14 A)
1 A rating,
0.02 A or
3%, whichever is greater (Range 0 to 2.8 A)
Power:
0.02 PU or
2%, whichever is greater
Frequency:
0.03 Hz (from 57 to 63 Hz for 60 Hz models; from 47 to 53 Hz for 50 Hz models)
Oscillographic Recorder
The oscillographic recorder provides comprehensive data recording of all monitored waveforms, input
contacts and output contacts, storing up to 120 cycles of data. The total record length is configured for one
or two partitions. A programmable post trigger delay (5 to 95%) is incorporated to capture breaker
operation. The oscillograph is triggered either remotely using the serial interface, or designated status
input signals or M-3410A programmable output operations. Storage of oscillographic records is nonvolatile,
and will be retained even without power, as long as the on-board battery is healthy.
Oscillographic data can be downloaded using serial communication in Common Format For Transient
Data Exchange (COMTRADE) format as specified by IEEE Standard C37.111-1999.
Sequence of Events
A total of 32 nonvolatile events can be stored. The recorded information includes the function(s) operated,
the function(s) picked up, input/output contact status and time stamp. The events can be retrieved through
the communications port. After the 32nd event is stored, additional events result in the oldest event being
dropped (FIFO). The information is time-stamped to 1 ms resolution.
Calculations
Current and Voltage Values: Uses discrete Fourier transform (DFT) algorithm on sampled (32 times per
cycle) voltage and current signals to extract fundamental frequency phasors for calculations. The 59/27
function, when set for RMS measurement, uses a time domain algorithm to calculate the voltage
magnitude.
Power Input Options
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5
1
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5
8
A
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7
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Содержание Syncrocloser M-3410A
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