Basler BE1-951 Manual

The BE1-951 is a multifunction numeric relay that provides three phase, ground, and negative
sequence directional or non-directional overcurrent protection with four shot recloser, forward or
reverse power protection, breaker failure, over/underfrequency, over/undervoltage and
overexcitation protection, sync check, breaker monitoring and control, sequence-of-events
recording, fault reporting, and metering functions, all in an integrated system.
• Each overcurrent element can be individually set for forward or reverse directional or
non-directional control for maximum flexibility in any application.
• Includes a sensitive forward or reverse power element for dispersed storage and
generation (DSG), dual bus sources with tie capability, or any application requiring
reverse power protection.
• Includes distance to the fault to aid in timely fault location and service restoration.
• BESTlogic provides the user with complete flexibility in configuring a protection and
control system. User programmable variable and switch names make these relays
completely self documenting.
• Programmable LCD display allows the relay to replace local indication and control
functions, 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
cogeneration 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 equip-
ment rack with no special mounting hardware.
• Available in fully drawout S1 and S1 double-ended cases with test paddles for retrofit
applications. 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.
WINDOWS
Interface for setting and communicating with Basler protection products
Request BESTCOMS for BE1-951.
ADDITIONAL INFORMATION
INSTRUCTION MANUAL
Request publication 9328900990
TIMING CURVES
Request publication 9252000999
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ADVANTAGES
SOFTWARE
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MODBUS INSTRUCTION MANUAL
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DNP 3.0 INSTRUCTION MANUAL
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P. O. BOX 269 HIGHLAND, ILLINOIS, U.S.A. 62249 PHONE 618-654-2341 FAX 618-654-2351
BE1-951
MULTIFUNCTION
PROTECTION
SYSTEM
DEVICE FUNCTIONS
FEATURES
Pages 2 and 3
APPLICATIONS
Page 3
FUNCTIONAL
DESCRIPTION
Page 4 - 6
BESTlogic
Pages 8 and 9
SPECIFICATIONS
Pages 7, 10-11
ORDERING
INFORMATION
Page 12
UHR-10
BE1-951
6-06