Basler BE1-951 User manual

BE1-951
UHR-10
6-06
P. O. BOX 269 HIGHLAND, ILLINOIS, U.S.A. 62249 PHONE [phone] FAX [phone]
BE1-951
MULTIFUNCTION
PROTECTION
SYSTEM
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.
ADVANTAGES
• 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.
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
INSTRUCTION MANUAL MODBUSINSTRUCTION MANUAL
Request publication 9328900990 Request publication 9328900991
TIMING CURVES DNP 3.0 INSTRUCTION MANUAL
Request publication 9252000999 Request publication 9328900992
ADDITIONAL INFORMATION
WINDOWS®SOFTWARE
Interface for setting and communicating with Basler protection products
Request BESTCOMS for BE1-951.
DEVICE FUNCTIONS
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BE1-951
2
FEATURES
PROTECTION
• Phase, Neutral, and Negative Sequence Instantaneous
Overcurrent elements with settable time delay: 50TP,
150TP, 50TN, 150TN, 50TQ, 150TQ
• Phase, Neutral, and Negative Sequence Time
Overcurrent elements: 51P, 51N, 151N, 51Q
(51P elements can have voltage restraint)
• Each overcurrent element can be set for forward,
reverse, or nondirectional control (67P, 67N, 67Q).
Directional control is by Positive (671), Negative (672),
Zero Sequence Voltage (670V) and Zero Sequence
Current (670I) polarized directional units.
• All U.S. and IEC timing curves plus user program-
mable curve
• Minimizes transient overreach and overtravel on
overcurrent elements
• Optional separate ground current input provides zero
sequence current polarization and/or ground
overcurrent protection for a separate ground CT.
• Phase Undervoltage and Overvoltage elements:
27P, 59P. 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, 59X, 159X. Elements monitor either fundamental or
third harmonic on the optional auxiliary 4th VT input, or
fundamental phase residual, 3V0, of the phase inputs.
• Overexcitation, volts per Hertz element: 24
• Forward or Reverse Power: 32
• Negative Sequence Overvoltage element: 47
• Over/Under Frequency elements: 81, 181, 281, 381,
481, 581
• Each 81 element can be assigned to monitor 3 phase VT
input (VP) or Auxiliary voltage input (Vx).
• Breaker Failure protection function: BF
• Two general purpose logic timers: 62, 162
• Programmable Logic using BESTlogic
• Four protection setting groups with external or automatic
(cold load pickup, load, unbalance, recloser shot)
selection modes
• Sync check with dead line/dead bus voltage monitor
logic, 25, 25VM (Requires optional 4th VT sensing
circuit)
• Fuse loss detection protects against false trip due to loss
of voltage sensing: 60FL
CONTROL
• Four shot recloser with zone sequence coordination and
sequence controlled protective element blocking
functions
• 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
• Virtual lockout latches: 86, 186. Status is stored in
EEPROM.
• 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, and frequency
and derived neutral and negative sequence current and
voltage
• Real Time per phase and 3 phase Watts, Vars, and
3 phase Power Factor
REPORTS
• Current demands for phase, neutral, and negative
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
• Optional 4000 point log of demand readings
• kWh and kvarh, forward and reverse
• Breaker operations counter and contact interruption duty
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-volatile memory
• Total number of oscillography records settable from 6 to
16
• Total of 240 cycles oscillography memory @ 12
samples/cycle
• COMTRADE format
• Load compensated distance to fault
COMMUNICATION PORTS
• Three independent general purpose communication
ports
- Front RS-232 ASCII communications
- Rear RS-232 ASCII communications
- Rear RS-485 ASCII, Modbus, DNP 3.0, and TNP
protocols
• IRIG time sync (unmodulated)
SELF TEST AND ALARM FUNCTIONS
• Relay fail, major alarm, and minor alarm LEDs, and
fail-safe alarm output contact (closed or open)
See style chart, page 12, for ordering information
• Extensive internal diagnostics monitor all internal
functions of the relay
• More than 20 additional alarm points—programmable
for major or minor priority
Including:
- 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
- Close circuit monitor via BESTlogic
PROGRAMMABLE I/O
• Four programmable inputs
• Five programmable outputs and one dedicated
programmable alarm output
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BE1-951
3
APPLICATIONS
The BE1-951 Multifunction Protection System provides three phase, ground, and negative sequence overcurrent,
voltage and frequency protection and is intended for use in any directional or non-directional overcurrent protection
application. Its unique capabilities make it ideally suited for applications with the following requirements:
• Applications that require low burden to extend the linear range of CTs.
• Applications that require high accuracy across a wide frequency range such as for motor, generator, and
generator step-up transformer protection or in cogeneration facilities.
• Applications that require the flexibility provided by wide setting ranges, multiple setting groups, and multiple
coordination curves in one unit.
• Applications that require the economy and space savings provided by a multifunction, multiphase unit. This one
unit can provide all of the protection, control, metering, and local and remote indication functions required on a
typical circuit.
• Applications that require directional control and fault locating.
• Applications requiring protection of an intertie between dispersed storage and generation facilities (DSG) and a
utility.
• Transformer backup applications where overexcitation protection is required.
• Applications that require communications and protocol support.
• Applications where the capabilities of a digital multifunction relay are required, yet drawout construction is also
desirable.
• Applications where bus protection is provided by a high speed overcurrent blocking scheme on the transformer
bus mains instead of a dedicated bus differential circuit.
• Applications where the small size and limited behind-panel projection facilitates modernizing protection and
control systems in existing substations.
FEATURES, continued
Figure 1 - Advanced HMI (Human Machine Interface) shown with
optional Direct Access Virtual Control Panel
HARDWARE FEATURES
•Three case configurations
- S1: Basler/GE style (with test plug)
- S1: Double ended, Basler/GE style (with test plugs)
- H1: Half Rack
• Active CT technology for low burden and increased
dynamic range
• Flash Memory for upgrading embedded programming
without changing chips
• Real Time Clock with 8 hour capacitor ride through and
optional battery backup
• Integral HMI with 2x16 character display
• Wide range ac/dc power supply options provide long
holdup time to ride through dips on ac power source.
(100 ms with 4 output relays energized, upon complete
loss of source. Starting voltage 125Vac for Option 1
(48/125Vac/dc) and 250Vac for Option 2 (125/250Vac/
dc)).
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BE1-951
4
FUNCTIONAL DESCRIPTION
The BE1-951 is a multifunction, numerical relay that
provides a comprehensive mix of protective functions
to detect faults and abnormal operating conditions in
substations and on feeders, along with control and
metering functions in an integrated system. Additional
features included in this relay such as voltage re-
strained overcurrent (51V), overexcitation (24), for-
ward/reverse power (32), synch check (25), over and
undervoltage (27/59) and over and underfrequency
(81O/U) make this system suitable for any directional
or non-directional overcurrent and over/underpower
applications including feeder, transformer, generator,
intertie, bus, and load shedding applications. Twelve
sample per cycle digital signal processing with fre-
quency compensation extracts the fundamental
component for high accuracy with distorted waveforms
and at off-nominal frequency operation.
The unit has one set of three phase current and
voltage sensing inputs to provide all common protec-
tive functions for substation and feeder applications.
The voltage sensing circuits automatically configure
themselves internally for 1 phase, 3 phase 3 wire, or 3
phase 4 wire VT circuits.
The BE1-951 also can be ordered with an optional
independent ground current input, typically used for
application with a separate ground CT such as a flux
balancing window CT, or to provide ground backup
protection for the neutral or tertiary of a transformer.
An optional fourth Auxiliary Voltage input is also
available. This voltage input can be connected to line
side potential for sync check (25) and dead line
(25VM) closing supervision or to a ground sensing VT
connection for ground fault protection on the delta side
of a cogeneration intertie transformer.
For directional applications, all overcurrent elements
can be independently set for forward, reverse, or non-
directional control. The target reporting function in the
BE1-951 automatically adapts the targets as appropri-
ate. For example, if the 150TP and the 51P functions
are set for directional control, they post targets for an A
phase fault as “167A” for directional instantaneous trip
or "67TA" for directional time trip respectively. Direc-
tional control is by sequence directional elements. The
zero sequence current polarized element uses the
optional independent ground input for its polarization
signal. The zero sequence voltage polarized element
requires that the VT connection be 4W. The positive
sequence directional element has memory voltage to
provide reliable directional control for close in bal-
anced three phase faults.
Three independent communications ports, along with
built-in support for Modbus and other common
protocols, provide easy access to integrating the
protection, control, metering, and status monitoring
functions into a substation automation system. The
standard IRIG-B port provides time synchronization
from a master clock.
Real time metering provides Watt, Watt-hour, VAR, VAR-
hour, voltage, amp, and unbalance loading telemetry for
the protected circuit. Contact sensing inputs and alarm
monitoring functions provide real time status informa-
tion. Remote control is provided by virtual control and
selector switches with select-before-operate control of
programmable outputs.
BESTlogic
BESTlogic programmable logic provides the user with
high flexibility in configuring a protection and control
system.
Each of the protection and control functions in the BE1-
951 is implemented as an independent function block
that is equivalent to its single function, discrete device
counterpart. Each independent function block has all
the inputs and outputs that the discrete component
counterpart might have. Figures 8A and 8B show each of
the independent function blocks available for use in the
BE1-951. Programming BESTlogic is equivalent to
choosing the devices required by your protection and
control scheme and drawing schematic diagrams to
connect the inputs and outputs to obtain the desired
operational logic.
The BE1-951 relay can store, as user settings, one user
programmable, custom logic scheme. To save you
time, several preprogrammed logic schemes have also
been provided. Any of the preprogrammed schemes
may be copied into the logic settings without making
any additional BESTlogic settings.
BESTlogic provides the protection engineer with the
flexibility to set up this powerful multifunction system
with the same freedom that was once enjoyed with
single function, discrete devices. It is no longer neces-
sary to compromise your standard protection and
operating practices to deal with the limitations in
programmability of previous multifunction devices.
Figures 2A, 2B, 2C and 3 show typical external connec-
tions, and Figures 5, 6, and 7 show rear panel connec-
tions.
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BE1-951
5
Figure 2A - Typical External Sensing Connections -
Feeder Breaker Application
FUNCTIONAL DESCRIPTION, continued
Figure 2B - Typical External Sensing Connections -
Transformer Backup Application
Figure 2C - Typical Alternate Connections for Vxand IG
Figure 3 - Typical External Connections
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BE1-951
6
FUNCTIONAL DESCRIPTION, continued
Figure 6 - BE1-951 H1 Rear Panel Connections
Figure 5 - BE1-951 S1 Rear Panel Connections
Figure 4 - Typical Application Single Line
Based upon pre-programmed logic OC-W-79.
Not all available protection and control functions are shown.
Figure 7 - BE1-951 S1 Double-Ended
Rear Panel Connections
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BE1-951
7
GENERAL SPECIFICATIONS
5 Amp CURRENT INPUTS
Continuous rating: 20A
One Sec. Rating: 400A
Saturation limit: 150A
Burden: <10milliohms
1 Amp CURRENT INPUTS
Continuous rating: 4A
One Sec. rating: 250A
Saturation limit: 30A
Burden: <22milliohms
PHASE AC VOLTAGE INPUTS
Continuous: 300V, Line to Line
One Sec. rating: 600V, Line to Neutral
Burden: Less than 1VA @ 300Vac
AUXILIARY AC VOLTAGE INPUT
Continuous: 150V
One Sec. rating: 600V
Burden: Less than 1VA @ 150Vac
A/D CONVERTER
Sampling Rate: 12/cycle, adjusted to
input frequency 10-75Hz
POWER SUPPLY
Option 1: DC range 35 - 150V
AC range 55 - 135V
Option 2: DC range 90 - 300V
AC range 90 - 270V
Option 3: DC range 17 - 32V (down
to 8V for momentary dips)
Burden: 6 watts continuous,
8 watts maximum with
all outputs energized
TRIP CONTACTS
Make and carry: 30A (0.2sec)
Continuous: 7A
Break: 0.3A DC (L/R=0.04)
CONTROL INPUTS
Wetting voltage range: Same as control power
supply option.
Low Range High Range
Power Turn-on Turn-on
Supply Voltage Voltage
Option Range Burden Range Burden
1) 48/125Vac/Vdc 26-38V 13k ohms 69-100V 24k ohms
2) 125/250Vac/Vdc 69-100V 25k ohms 138-200V 54k ohms
3) 24Vdc 5-8Vdc 7k ohms N/A N/A
Control inputs recognize both DC and AC voltages.
COMMUNICATION PORTS
Response time: <100mSec for metering
and control functions
Baud rate: 300 - 19200
ELECTRICAL ENVIRONMENT
• IEEE C37.90-1989 Standard for Relays and Relay
Systems Associated with Electric Power Apparatus
• IEC 255-5 Insulation Test for Electrical Relays
Impulse and Dielectric Strength (2000Vac at 50/60Hz)
• IEEE C37.90.1-1989 Standard Surge Withstand Cap-
ability Tests for Relays and Relay Systems Associated
with Electric Power Apparatus
• IEC 255-22-1 1MHz Burst Disturbance Tests for Elec-
trical Disturbance Tests for Measuring Relays and
Protection Equipment
• EN 61000-4-4 Electrical Fast Transient/Burst Immunity
Test
• EN 61000-4-3 Radiated, Radio-frequency, Electro-
magnetic Field Immunity Test
• Type tested using a 5-watt, hand-held transceiver in
the ranges of 144 and 440MHz with the antenna
placed within 6 inches of the relay.
• IEEE C37.90.3 (Jan. 01) Draft Standard Electrostatic
Discharge Tests for Protective Relays
• EN 61000-4-2 Electrostatic Discharge Immunity Test
MECHANICAL ENVIRONMENT
• Operating temperature range: -40°C to 70°C*
(-40°F to 158°F)
*LCD Display is inoperative below -20°C.
• Storage temperature range: -40°C to 70°C
(-40°F to 158°F)
• Humidity: Qualified to IEC 68-2-38, 1st Edition
1974, Basic Environmental Test Procedures,
Part 2: Test Z/AD: Composite Temperature
Humidity Cyclic Test
• Qualified to IEC 255-21-1 (Class 1) Vibration Tests
for Electrical Relays
• Qualified to IEC 255-21-2 (Class 1) Shock and
Bump Tests for Electrical Relays
CERTIFICATIONS
UL Recognized, File E97033
CSA Certified, File LR23131
Gost R Certified, #POCC US.ME05.B03391
DNP 3.0 IED Certified, Subset Level 2, 6/20/00,
by SUBNET Solutions, Inc.
CASE SIZE
H1: 10.50"W x 3.47"H x 9.10"D with mounting
flanges (8.5"W without mounting flanges)
S1: 6.65"W x 9.32"H x 9.51"D (includes relay cover)
S1 double-ended: 6.65"W x 9.32"H x 9.51"D
(includes relay cover)
SHIPPING WEIGHT
H1: Approx. 10 pounds
S1: Approx. 11.2 pounds
S1 double-ended: 12.8 pounds
WARRANTY
7 years
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BE1-951
8
Figure 8A - BESTlogic Function Blocks
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BE1-951
9
Figure 8B - BESTlogic Function Blocks
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BE1-951
10
PERFORMANCE SPECIFICATIONS
INSTANTANEOUS OVERCURRENT WITH
SETTABLE DELAY (50TP, 150TP, 50TN, 150TN,
50TQ, 150TQ)
Pickup: 5A CT 0.5 - 150.0A
1A CT 0.1 - 30.0A
PU time with TD=0.000 Sec
2 cyc for P, N &G @ 5 x PU
3 cyc for Q @ 5 x PU
Delay time: 0.000 - 60 sec
Time Accuracy: ±0.5% or ±½ cyc for P and N
±0.5% or ±1 cyc for Q
TIME OVERCURRENT (51P, 51N, 151N, 51Q)
Pickup: 5A CT 0.5 - 16.0A
1A CT 0.1 - 3.20A
Time dial: TD=K=0 - 99 for 46 curve
TD=0.0 - 9.9 for all other curves
Time-Current Characteristics:
The following expression describes the inverse
time current characteristic for each curve:
TT= AD + BD + K = Time to trip
MN-C
TR= RD = Time for decaying reset
M2-1
where D = Time dial, M = Multiple of PU and A, B,
C, N, K and R are constants that govern the shape
of each curve. The protection engineer can set the
constants for the P (programmable) curve to
achieve virtually any characteristic.
51P VOLTAGE CONTROL (27R)
Control Modes: Uncontrolled, voltage
controlled, voltage restrained.
Control/Restraint Range: 30 - 250V
Restrained Mode Characteristic: (see below)
Constants
Curve
Type
S1
S2
L1
L2
D
M
I1
I2
V1
V2
E1
E2
A
B
C
G
F
46
P
S1, S2 = CO Short Inv, IAC Short Inv A= IEC Standard Inverse
L1, L2 = CO Long Inv, IAC Long Inv B= IEC Very Inverse
D= CO Definite Time C = IEC Extremely Inverse
M= CO Moderately Inverse G= IEC Long Time Inverse
I1, I2 = CO Inverse, IAC Inverse F= Fixed Time
V1, V2 = CO Very Inv, IAC Very Inv 46 = Negative Sequence Overcurrent
E1, E2 = CO Ext Inverse, IAC Ext. Inverse P= Programmable
* Constant A is variable for the 46 curve and is determined as necessary based on
system full load current setting, minimum pickup, and K factor settings.
DIRECTIONAL CONTROL (ALL OVERCURRENT)
Mode: Forward, Reverse,
Nondirectional
67P Polarization: Positive Sequence w/Memory
Negative Sequence
67Q Polarization: Negative Sequence
67N Polarization: Selectable any combination
Zero Sequence Voltage
(Requires 4W VT)
Zero Sequence Current
(Requires IG)
Negative Sequence
BREAKER FAILURE (BF)
Time: 50 - 999mSec
Dropout: 5A CT 0.5A
1A CT 0.1A
Time Accuracy: ±0.5% or +1¼ cyc / - ½cyc
VOLTS/HZ (24)
Pickup: 0.5 - 6V/Hz
Delay Time: Inverse Squared Curve
D
T
ET
T
T
= (M-1)
2
T
R
= D
R
x FST x 100
TT= Time to Trip TR= Time to Reset
DT= Time Dial, Trip DR= Time Dial, Reset
Actual V/Hz
M = Pickup V/Hz ET = Elapsed Time
FST = Full Scale Trip Time (TT)
A B C N K R
0.2663 0.03393 1.000 1.2969 0.028 0.5000
0.0286 0.02080 1.000 0.9844 0.028 0.0940
5.6143 2.18592 1.000 1.000 0.028 15.750
2.3955 0.00000 1.000 0.3125 0.028 7.8001
0.4797 0.21359 1.000 1.5625 0.028 0.8750
0.3022 0.12840 1.000 0.5000 0.028 1.7500
8.9341 0.17966 1.000 2.0938 0.028 9.0000
0.2747 0.1042 1.000 0.4375 0.028 0.8868
5.4678 0.10814 1.000 2.0469 0.028 5.5000
4.4309 0.0991 1.000 1.9531 0.028 5.8231
7.7624 0.02758 1.000 2.0938 0.028 7.7500
4.9883 0.0129 1.000 2.0469 0.028 4.7742
0.01414 0.00000 1.000 0.0200 0.028 2.0000
1.4636 0.00000 1.000 1.0469 0.028 3.2500
8.2506 0.00000 1.000 2.0469 0.028 8.0000
12.1212 0.00000 1.000 1.000 0.028 29.000
0.0000 1.00000 0.000 0.0000 0.028 1.0000
* 0 0 2 0.028 100
0 to 600 0 to 25 0 to 1 .5 to 2.5 0.028 0 to 30
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BE1-951
11
PERFORMANCE SPECIFICATIONS, continued
PHASE OVER/UNDERVOLTAGE (27P, 59P)
Mode: 1 of 3; 2 of 3; 3 of 3
Pickup: 10.0-300VL-L or 10.0-300VL-N
Delay Time: 0.050 - 600sec.
NEGATIVE SEQUENCE OVERVOLTAGE (47)
Pickup: 1.0 - 300VL-N
Delay Time: 0.050 - 600sec.
AUXILIARY / 3V0 OVER/UNDERVOLTAGE
(27X, 59X, 159X)
Mode: Fundamental VX,
3 phase Residual (3V0),
3rd Harmonic VX
Pickup: 1.0 - 150V
Delay Time: 0.050 - 600 Sec.
POWER (32)
Mode: Forward, Reverse
Pickup: 5A: 1.0 - 6000 Watts, 3 ph
1A: 1.0 - 1200 Watts, 3 ph
Pickup Accuracy: ±3%
Delay Time: 0.050 - 600 Sec.
FREQUENCY (81, 181, 281, 381, 481, 581)
Mode: Over, Under
Pickup: 40.00 - 70.00 Hz
Delay Time: 0.000 - 600 Sec.
Time Accuracy: ±0.5% or +1 cyc / -0 cyc
(Min. trip time affected by min. 3 cyc security
count)
GENERAL PURPOSE LOGIC TIMERS (62, 162)
Mode: PU/DO
1 Shot, Non-Retrig.
1 Shot, Retrig.
Integrating
Latch
T1 and T2 Delay Time: 0.000 - 9999 Sec.
Time Accuracy: ±0.5% or ±¾ cyc
RECLOSER (79)
Mode: Power up to close,
Power up to lockout
Reclose Shots: 0 - 4
Reclose, Reset, Fail,
Max. Cycle Timers: 0.100 - 600 Sec.
Time Accuracy: ±0.5% or
+1¾ cyc/-0 cyc
CURRENT PICKUP ACCURACY (All 50 and 51)
Phase and Ground: 5A 2% or 50mA
1A 2% or 10mA
Neutral and Negative 5A 3% or 75mA
Sequence: 1A 3% or 75mA
VOLTAGE PICKUP ACCURACY (All 27, 47 and 59)
Phase (VL-L or VL-N): ±2% or ±0.5V
Phase 3V0 and V2: ±2% or ±0.5V
DEFINITE TIME ACCURACY UNLESS OTHERWISE
STATED (All 27, 47 and 59)
Definite Time Accuracy: ±0.5% or ±1 cyc
SETTING GROUPS
Setting Groups: 4
Control Modes: Automatic:CLP;
Recloser shot;
Dynamic load or unbalance
External: Discrete input logic;
Binary: Input Logic
METERING
Current Range: 5A 0.5 to 15.0
1A 0.1 to 3.0
Current Accuracy: ±1%
Phase Voltage Range: 3W 0 - 300 VL-L
4W 0 - 300 VL-L
Phase Voltage Accuracy: ±0.5% for
50V<VL-L<300V
Watt/VAR: 5A 0 to ±7500
1A 0 to ±1500
Watt Accuracy: 1% @ Unity PF
VAR Accuracy: 1% @ Zero PF
Energy: 0 to ±1.0E12
(F/R registers)
Frequency: 10 - 75Hz
Frequency Accuracy: 0.01Hz
DEMANDS (IA, IB, IC, IN, IQ, Fwd Watts, Rvs Watts,
Fwd VARs, Rvs VARs)
Demand Interval: 1 - 60 min.
Demand Mode: Thermal
BREAKER MONITORING
Duty Mode: I or I2
Duty Alarm Range: 0 - to 100%
Op Counter Alarm Range: 0 - 99999
Trip Time Alarm Range: 20 - 1000mSec
SYNC CHECK (25)
Delta Phase Angle: 1 - 45 degrees
Delta Voltage Magnitude: 1 - 20V
Delta Frequency: 0.01 - 0.50Hz
SYNC CHECK, VOLTAGE MONITOR (25VM)
Dead Threshold: 10 - 150V
Live Threshold: 10 - 150V
Dropout Time Delay: 0.050 - 60.0sec
Logic: Dead Phase/Dead Aux.
Dead Phase/Live Aux.
Live Phase/Dead Aux.
Two Independent outputs: 25VM1 and 25VM2
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BE1-951
ORDERING
SAMPLE STYLE NUMBER
The style number identification chart defines the electrical characteristics and operation features included in
BE1-951 relays. For example, if the style number were BE1-951 E3N1H0Y, the device would have the following:
BE1-951
(E) - 5 Amp nominal system with 5 Amp Independent Ground Input
(3) - Three phase voltage sensing
(N) - Not applicable
(1) - 48/125Vac/Vdc power supply
(H) - Half Rack Case, Normally Closed Alarm
(0) - ASCII Communications
(Y) - 4000 point Load Profile Demand Log
Printed in U.S.A.Printed in U.S.A.
Printed in U.S.A.Printed in U.S.A.
Printed in U.S.A.
STANDARD ACCESSORIES
9334818100 Battery Backup Replacement Kit (if "U" or "W" is chosen for Option 1)
9108551021 Adapter plate to mount an S1 case in a GE S2 or Westinghouse FT-21 cutout.
9108551022 Adapter plate to mount an S1 case in a Westinghouse FT-32 cutout.
9289900017
Escutcheon plate
to panel mount
one H1 relay.
9289900016
Escutcheon plate
to panel mount two
dovetailed H1 relays.
9289924100
Adapter bracket to mount
single H1 case in 19” rack.
9289929100
Adapter bracket with cutout for
ABB FT test switch, to mount a
single H1 case in a 19” rack.
Figure 9A
Cover option A.
Figure 9B
Cover option B.
Route 143, Box 269, Highland, Illinois U.S.A. 62249
Tel [phone] Fax [phone]
e-mail: [e-mail]
No. 1300 North Zhongshan Road, Wujiang Economic Development Zone
Suzhou, Jiangsu Province - P.R. China 215200
Tel [phone] Fax [phone]
e-mail: [e-mail]
www.basler.com
P.A.E. Les Pins, 67319 Wasselonne Cedex FRANCE
Tel [phone] Fax [phone]
e-mail: [e-mail]
Courtesy of NationalSwitchgear.com