BE1-GPS100

BE1-GPS100

ADVANTAGES

BESTlogic provides the user with very high flexibility in configuring a protection and control system.
Substantial functionality in a small package, useful where space is very limited but high functionality is needed.
Programmable LCD display allows the relay to replace local indication and control functions, such as panel metering, alarm annunciation, and control switches.
Provides optional separate ground current input for those applications where this is required.
Three independent communication ports with protocol support allows integration with distributed control systems.
Includes frequency tracking and voltage restrained overcurrent for backup and cogeneration applications.

BE1- GPS100 FEATURES

PROTECTION

Phase and Neutral Instantaneous Overcurrent elements with settable time delay:
Phase, Neutral, and Negative Sequence Time Overcurrent elements:.
Phase overcurrent element includes capability of voltage restraint or voltage control.
Negative sequence overcurrent element (46) includes algorithm for timing based on generator K factors or may use standard TOC curves..
All U.S. and IEC timing curves plus user programmable curve.
Phase Undervoltage and Overvoltage elements.
Auxiliary Undervoltage and Overvoltage elements.
Negative Sequence Overvoltage element:
Four Under/Overfrequency elements.
Forward/Reverse Power.
Loss of Excitation (offset sloped VAR flow algorithm).
Breaker Failure protection function: BF
4 general purpose logic timers: 62,162,262, 362
Inadvertent energization protection
100% stator ground fault protection using auxiliary voltage elements for ground overvoltage and 3rd harmonic ground undervoltage
Sync check and/or dead bus close supervision
Programmable Logic using BESTlogic
Two protection settings group controllable via relay logic, 43 Aux switches, and hardwired inputs. Setting group selection may control tripping logic.
Fuse loss detection (60FL) protects against false trip due to loss of voltage sensing.

CONTROL

Virtual breaker control switch-controllable from both HMI and com. Ports and four virtual selector switches-controllable from both HMI and com. ports, also communication port control of 101 and #43 switches allows for SCADA control of relay and breaker.

INSTRUMENTATION

Real time A, B, C phase current, voltage; frequency; and derived neutral and negatyve sequence current and voltage. Real Time 3 phase Watts, VARs, and Power Factor.

REPORTS

Current demands for phase, ground, and negatyve sequence currents, and forward and reverse Watts and VARs-magnitudes and time stamps are recorded for today’s peak, yesterday’s peak, and peak since reset.
kWh and kVARh, forward and reverse
Breaker operations counter and contact interruption duty. Breaker operate time also available.

FAULT RECORDING

255 event sequence of events report with I/O and alarm sub-reports
Fault Reporting; 1 or 2 oscillography records per fault report
16 fault summary reports; two most recent Fault Summary Records saved to non-volative memory
Total number of fault and oscillography records settable from 6 to 16
Total of 240 cycles oscillography memory @ 12 samples/cycle

COMMUNICATION PORTS

SELF TEST AND ALARM FUNCTIONS

Relay fail, major alarm, and minor alarm LEDs, and fail-safe alarm output contact (closed or open) also extensive internal diagnostics monitor all internal functions of the relay.
More than 20 additional alarm points - programmable for major or minor priority including:
User defined logic state alarms that may be associated with any user specified relay logic state or relay protective element status.
Phase current, and forward and reverse Watt and VAR demand alarm.
Neutral and negative sequence unbalance demand alarms.
Three breaker alarm points programmable for slow trip, interruption duty threshold, or operations counter.
Trip circuit voltage and continuity monitor.

PROGRAMMABLE I/O

Gandras Energoefektas