BECKWITH ELECTRIC M-3425A, Instruction Book

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M‑3425A Instruction Book
1–2
Chapter 6: Testing
This chapter provides step-by-step test procedures
for each function, as well as diagnostic mode and
auto-calibration procedures.
Appendix A: Configuration Record Forms
This Appendix supplies a set of forms to record
and document the settings required for the proper
operation of the M-3425A.
Appendix B: Communications
This Appendix describes communication port signals
and various topologies and equipment required for
remote communication.
Appendix C: Self‑Test Error Codes
This Appendix lists all the error codes and their
definitions.
Appendix D: Inverse Time Curves
This appendix contains a graph of the four families of
Inverse Time Curves for V/Hz applications, the four
standard and the four IEC overcurrent curves. Also
included are three IEEE inverse time curves.
Appendix E: Layup and Storage
This Appendix provides the recommended storage
parameters, periodic surveillance activities and layup
configuration.
Appendix F: HMI Menu Flow
This Appendix includes the M-3425A HMI Flow
diagrams to aide the user in navigating the menu
system.
Appendix G: Index
This Appendix includes the Index for the M-3425A
Instruction Book.
Appendix H: Declaration of Conformity
This Appendix contains the Beckwith Electric Co.’s
Declaration of Conformity required by ISO/IEC
17050-1:2004.
1.2 M-3425A Generator Protection
Relay
The M-3425A Generator Protection Relay is a
microprocessor-based unit that uses digital signal
processing technology to provide up to thirty-four
protective relaying functions for generator protection.
The relay can protect a generator from internal winding
faults, system faults, and other abnormal conditions.
The available M-3425A Generator Protective
Functions are listed in Table 1-1. The nomenclature
follows the standards of ANSI/IEEE Std. C37.2,
Standard Electric Power Systems Device Function
Numbers where applicable.
The control/status inputs can be programmed to
block and/or to trigger the oscillograph recorder. Any
of the functions or the control/status inputs can be
individually programmed to activate any one or more
of the programmable outputs, each with a contact.
The M-3931 Human Machine Interface (HMI) Module
allows the user to access the following features and
functions from the M-3425A front panel using a menu-
driven, 2 line by 24 character alphanumeric display:
Settings
• Enter Comm settings
• Set Access Codes
• Set User Control Number
• Set display User Lines 1 and 2
• Set Date/Time
Functions
• Clear Alarm Counter
• Enter Diagnostic Mode
• Clear Error Codes
Status
• Metering of various quantities, including
voltage, current, frequency and phase-angle
• I/O Status
• Alarm Counter
• M-3425A Unit Last Power Up Date and
Time
• M-3425A Unit Firmware Version and Serial
Number
• Error Codes
• Checksums