Basler Electric BE1-GPS100 GENERATOR PROTECTION SYSTEM

The BE1-GPS100 is a multifunction, programmable numerical protection, meter, and control

relay. Functions provided include three phase voltage controlled, voltage restrained, or

standard overcurrent, phase residual and independent ground overcurrent, negative sequence

overcurrent, breaker failure, over/underfrequency, phase over/undervoltage, zero sequence

over/undervoltage, and negative sequence overvoltage, forward or reverse power, loss of

excitation, volts per hertz, sync check, sensitive third harmonic ground fault monitoring, breaker

monitoring and control and metering functions, all in an integrated system.

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 func

tions, such as panel metering, alarm annunciation, and control switches.

Three independent communication ports with protocol support allows integration with

distributed control systems.

Provides optional separate ground current input for those applications where this is

required.

Includes frequency tracking and voltage restrained overcurrent for backup and cogenera

tion applications.

Includes Real Time Clock with 8 hour capacitor ride through and optional battery backup.

Available in fully drawout half rack case. Two Basler Electric half rack IEDs (Intelligent

Electronic Devices) can be dovetailed together to mount in a standard 19-inch equipment

rack with no special mounting hardware.

Available in fully drawout S1 case with test paddle. The S1 case, with available adapter

plates, fits cutout, drilling and behind panel projection dimensions for common Basler

Electric, GE and Westinghouse unit case relays.

PROTECTION

Phase and Neutral Instantaneous Overcurrent

elements with settable time delay: 50TP, 50TN

Phase, Neutral, and Negative Sequence Time

Overcurrent elements: 46. 51P, 51N, 151N

Phase overcurrent element (51P) includes capabil

ity of voltage restraint or voltage control.

Internally calculated phase residual, 3I0. available

on all relays. Optional independent ground input

available. Neutral overcurrent elements (50TN, 51N,

151N) monitor either ground or calculated residual.

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 program

mable curve.

Phase Undervoltage and Overvoltage elements:

27P, 127P, 59P, 159P. Elements use a 1 of 3. 2 of

3. or 3 of 3 logic, and monitor either line-line or line

ground voltages.

Auxiliary Undervoltage and Overvoltage elements:

27X, 127X, 59X, 159X. Elements monitor either

fundamental or third harmonic on the optional

auxiliary 4thVT input, or fundamental phase

residual, 3V0. of the phase inputs.

Negative Sequence Overvoltage element: 47

Overexcitation, Volts per Hertz element: 24

Four Under/Overfrequency elements: 81. 181. 281. 381

Forward/Reverse Power: 32. 132

Loss of Excitation (offset sloped VAR flow algo rithm): 40Q, 140Q

Breaker Failure protection function: BF

4 general purpose logic timers: 62. 162. 262. 362

Inadvertent energization protection using 50

elements supervised by 81 and/or 27 elements

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

25. 27X (Requires optional 4th VT sensing circuit)

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: 101

Four virtual selector switches controllable from

both HMI and com. ports: 43. 143. 243. 343

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; fre