SEL-351R Falcon™ Recloser Control
Take Control of Your Recloser
Major Features and Benefits
The SEL-351R Falcon Recloser Control provides microprocessor-based features in a slim-profile housing for
long, reliable service on your distribution system.
➤ Modernize existing recloser installations to provide cost saving protection, automation, and
control features. Single-person-lift size and standard control cable interconnection simplifies
installation. Available in Lift-To-Open and Swing-Open enclosure options.
➤ Use automatic network reconfiguration for improved reliability. Patented MIRRORED BITS® communications speeds protection and improves security.
➤ Customize controls by using enhanced SELOGIC® control equations for improved system operation.
Configurable front-panel control labels simplify custom functions.
➤ Improve feeder loading by using built-in, high-accuracy metering functions. Use watt and var measurements to optimize feeder operation. Measure three-phase values with either three potential transformers or use “phantom” values derived from a single-phase voltage.
➤ Increase efficiency of service restoration with accurate fault location when connected with three-phase voltages.
➤ Reduce engineering costs with ACSELERATOR QuickSet® SEL-5030 Software for relay settings and logic programming. The built-in HMI provides phasor diagrams that help support commissioning and troubleshooting.
➤ Power with 120 Vac or 230 Vac (or 125 Vdc or 250 Vdc).
Schweitzer Engineering Laboratories, Inc.
SEL-351R Falcon Data Sheet
2
Functional Overview
Bus
ANSI NUMBERS/ACRONYMS AND FUNCTIONS
S
27
P
67 GQ
RECLOSER
67N
59
50
P
G
Q
50N
O
U
81
P
51 GQ
51N
Residual
3
P
G
Q
25
79
27
59
1
BRM
DFR
HMI
MET
SER
85
RIO
LGC
LOC
1
*
Figure 1
Synchronism Check*
27
Undervoltage
50N
Neutral Overcurrent
50 (P, G, Q)
Overcurrent (Phase, Ground, Neg. Seq.)
51N
Neutral Time-Overcurrent
51 (P, G, Q)
Time-Overcurrent (Phase, Ground, Neg. Seq.)
59
Overvoltage
59 (P, G, Q)
Overvoltage (Phase, Ground, Neg. Seq.)
67N
Directional Neutral Overcurrent*
67 (P, G, Q)
Directional Overcurrent (Phase, Ground, Neg. Seq.)*
79
Autoreclosing
81 (O, U)
Over-/Underfrequency
85 RIO
SEL MIRRORED BITS® Communications
DFR
Event Reports
HMI
Operator Interface
LGC
SELOGIC® Control Equations
MET
High-Accuracy Metering
SER
Sequential Events Recorder
ADDITIONAL FUNCTIONS
4
Line
25
EIA-232
EIA-485*
IRIG-B
BRM
Breaker Wear Monitor
LDP
Load Data Profiling*
LOC
Fault Locator*
* Optional Feature
Functional Diagram
Functional Replacement for Traditional Recloser Control
EZ Settings for Basic
Recloser Functions
For traditional recloser functions, the SEL-351R Falcon
is easy to set. Only settings such as minimum trip pickup,
curve type, and reclose interval are necessary. These settings are made at an EZ (easy) access level. SELOGIC
control equations cannot be changed at this access level.
Control logic is preconfigured at the factory. To
customize the logic for advanced functions, the SELOGIC
control equations must be reprogrammed.
Reclosing
The SEL-351R Falcon can reclose as many as four (4)
times. This allows as many as five (5) operations of any
combination of fast and delay curve overcurrent
elements. Each reclose interval can be set for as many as
999,999 cycles (more than 4.5 hours), if necessary.
After a reclose interval has timed out, the control waits a
user-set time (close power wait time) for the presence of
adequate Vac power before proceeding with the auto
reclose. The recloser needs either primary or secondary
voltage to provide the closing power, depending on how
SEL-351R Falcon Data Sheet
the recloser is equipped. The Vac power into the
SEL-351R Falcon is an indication of the presence of this
primary or secondary voltage. The close power wait time
has the same 999,999-cycle setting range as the reclose
interval.
The reset times are set separately for reset timing for an
auto reclose and reset timing for a manual/remote close
from lockout. Traditionally, the reset time for a
manual/remote close from lockout is set for less than the
reset time for an auto-reclose. The reset times have the
same 999,999-cycle setting range.
Front-panel LEDs track the CONTROL STATE for
auto-reclosing: RESET, CYCLE, or LOCKOUT (see Figure 14
and Table 4).
Sequence coordination logic is enabled to prevent the
SEL-351R Falcon from tripping on its fast curves for
faults beyond a downstream recloser.
Customize reclosing logic by using SELOGIC control
equations. Use programmable counters, latches, logic
functions, and analog compare functions to optimize
control actions.
Schweitzer Engineering Laboratories, Inc.
3
C
Source B
A
120 Vac
Close Power
(if recloser
is equipped)
R
E
C
L
O
S
E
R
Load
SERIAL
PORT 3
Z25
N/C
Z26
GND
120 Vac Power
Any fast or delay curve (phase or ground) can be set with
any of the curves in Table 1. The US and IEC curves
conform to IEEE C37.112-1996 IEEE Standard
Inverse-Time Characteristic Equations for Overcurrent
Relays.
The traditional recloser curve choices listed in Table 1
use the older electronic control designations. The
SEL-351R Falcon also works with the newer
microprocessor-based control designations. For example,
a given traditional recloser curve has the following two
designations:
Z23
Z22
H
SERIAL
PORT 2
N
Z24
RECLOSER CONTROL
+
8
7
F01
BAT 3A
Z20
4
A26
Z17
AUX 2
A24
A23
A19
A18
A
B/D
Z13
Z12
Z11
A17
ALARM
OUT107
N/C
Z06
A12
A11
Z05
A10
A09
OUT104
N/C
Z09
Z08
Z07
A08
A06
A04
A02
A07
A05
Z04
Z03
Z02
I2
RECLOSER
OPEN
A14
OUT103
RECLOSER
CLOSED
TRIP
A13
Z01
I1
WAKE UP
CLOSE
A16
A15
OUT102
(press for 3 sec)
Z15
Z14
A20
OUT101
LOCK
A22
A21
Z10
REMOTE
ENABLED
ALTERNATE
SETTINGS
IN103
IN102
AUX 1
RECLOSE
ENABLED
IN101
GROUND
ENABLED
BAT+
A25
Z16
CONTROL STATE
12 V
N/C
N/C
IN104
EXIT
A03
A01
196-1215
Optional 3-Phase Voltage
(connect to voltage
channels V1, V2, and V3)
• Fault Locating
• Sensitive, Yet Secure,
Fault Detection
• Complete Metering
Control Cable
• Trip and Close
• Breaker Status
• IA, IB, IC, IN
• 24 Vdc
Connect to extra
voltage channel VS
for synchronism check
and line voltage check
(channel VS connects
to A-phase in this example)
Figure 2 Connect True Three-Phase and
Synchronism-Check Voltages to the SEL-351R Falcon
Overcurrent Protection
Fast and Delay Curves
Use up to five cumulative fast and delay curve operations
for phase and ground overcurrent protection. For a nominal recloser CT ratio of 1000:1, these curves can be set as
sensitive as 50 A and 5 A primary for phase and ground
overcurrent protection, respectively.
Traditional recloser curve A and 101 are the same curve.
Use either designation in making curve settings in the
SEL-351R Falcon.
Four (4) user-designed curves (created with a software
package) can be downloaded to the SEL-351R Falcon.
The fast and delay curves (phase or ground) can be set
with the user-designed curves or the curve choices in
Table 1.
Modify fast and delay curves (including US or IEC curve
choices) with the following traditional recloser control
curve modifiers:
➤ constant time adder—adds time to curve
➤ vertical multiplier (time dial)—shifts whole curve
up or down in time
➤ minimum response time—holds off curve tripping
for minimum time
➤ high-current trip—instantaneous trip with optional
time delay
➤ high-current lockout—high-set lockout threshold
Front-panel target LEDs indicate any overcurrent trip in
general (TRIP LED) and then discriminate a fast-curve
trip (FAST CURVE LED) or a high-current trip (HIGH
CURRENT LED). See Figure 14 and Table 4.
Curve Choices in the SEL-351R Falcon
Programmable curves
(user designed)
F01
SERIAL
PORT 3
GND
3
2
BATTERY
PROBLEM
HOT LINE
TAG
TRIP
FAST
CURVE
HIGH
CURRENT
81
CYCLE
LOCKOUT
A
B
C
G
SEF
GROUND
ENABLED
Z14
Z13
A19
A18
Z12
Z11
A17
CLOSE
RECLOSER
CLOSED
TRIP
RECLOSER
OPEN
ALARM
OUT107
WAKE UP
BAT+
A20
A14
N/C
REMOTE
ENABLED
(press for 3 sec)
A21
A16
N/C
AUX 2
LOCK
A22
Z10
RECLOSE
ENABLED
ALTERNATE
SETTINGS
I
AUX 1
IN101
CONTROL STATE
Fast
Curves
Z15
IN103
AC
SUPPLY
RESET
IN102
CONTROL
ENABLED
12 V
N/C
Z16
RET
A23
A
N/C
Z17
A24
B/D
IN104
Z18
A25
C
EXIT
A26
E
SELECT
A27
F
GROUP
A15
A13
Z09
Z08
Z07
Z06
NS
CNTRL
VS
SET
N
OTHER
V3
CANCEL
STATUS
V2
LAMP
TEST
EVENTS
RET
Z19
METER
BAT-
1
Z20
TARGET
RESET
A12
A11
Z05
V1
SERIAL PORT 1
5
4
A28
Delay
Curves
class A (standard inverse),
class B (very inverse), class C
(extremely inverse), long-time
inverse, short-time inverse
N/C
N
SERIAL
PORT 2
H
Z22
A10
A09
A08
A06
A04
A02
A07
A05
Z04
Z03
IN
IRIG-B
7
BAT 3A
8
N/C
t
moderately inverse, inverse,
very inverse, extremely
inverse, short-time inverse
Z02
Z01
A03
A01
196-1215
Retrofit older existing
reclosers with SEL-351R Falcon
Four (4) programmable curves
Schweitzer Engineering Laboratories, Inc.
Z23
Z21
_
+
OUT104
IEC curves
Z24
RECLOSER CONTROL
I3
US curves
Z26
Z25
SEL-351S
I2
A, B, C, D, E, F, G, H, J, KP,
L, M, N, P, R, T, V, W, Y, Z, 1,
2, 3, 4, 5, 6, 7, 8, 8PLUS, 9,
KG, 11, 13, 14, 15, 16, 17, 18
Recloser
OUT103
All traditional recloser curves
52
I1
Curve Choices
OUT102
Curve Type
OUT101
Table 1
101
RET
SEF
GROUP
C
81
G
E
HIGH
CURRENT
C
F
FAST
CURVE
B
NS
TRIP
A
EVENTS
VS
CNTRL
HOT LINE
TAG
LOCKOUT
N
SET
BATTERY
PROBLEM
CYCLE
V3
OTHER
SELECT
AC
SUPPLY
RESET
V2
STATUS
CANCEL
A27
V1
METER
LAMP
TEST
Z18
RET
Z19
TARGET
RESET
A
Newer microprocessor-based control designation:
1
A28
CONTROL
ENABLED
Older electronic control designation:
3
2
IN
SERIAL PORT 1
5
BAT-
N/C
I3
IRIG-B
Z21
_
Figure 3
Coordinate Overcurrent Protective Devices
SEL-351R Falcon Data Sheet
4
The SEL-351R Falcon has two reset characteristic
choices for each time-overcurrent element. One choice
resets the elements if current drops below pickup for at
least one cycle. The other choice (for US or IEC curves
only) emulates electromechanical induction disc
elements, where the reset time depends on the time-dial
setting, the percentage of disc travel, and the amount of
current.
Sensitive Earth
Fault (SEF) Element
A sensitive earth fault (SEF) element with time delay (as
long as 16,000 cycles) can be set as sensitive as 5 A primary (assuming nominal recloser CT ratio of 1000:1).
Current channel IN with a 0.05 A secondary nominal rating provides this sensitivity (see Figure 15).
The front-panel SEF LED indicates any SEF element trip
(see Figure 14 and Table 4).
Custom Overcurrent Protection
Customize the overcurrent protection by reprogramming
the corresponding SELOGIC control equations.
Metering and Monitoring
Complete Metering Capabilities
The SEL-351R Falcon provides extensive and accurate
metering capabilities. See Specifications on page 17 for
metering and power measurement accuracies.
Table 2
Metered quantities include phase voltages and currents
(including demand currents); sequence voltages and
currents; power (including demand), frequency, and
energy; and maximum/minimum logging of selected
quantities (see Table 2). The recloser control reports all
metered quantities in primary quantities (current in
A primary and voltage in kV primary).
Meteringa
Quantities
Description
Currents IA,B,C,N, IG
Input currents, residual ground current (IG = 3I0, IA + IB + IC).
Voltages VA,B,C, VS
Wye-connected voltage inputs, synchronism-check voltage input.
Power MWA,B,C,3P , MVARA,B,C,3P
Single- and three-phase megawatts and megavars.
Energy MWhA,B,C,3P , MVARhA,B,C,3P
Single- and three-phase megawatt-hours and megavar-hours.
Power Factor PFA,B,C,3P
Single- and three-phase power factor; leading or lagging.
Sequence I1, 3I2, 3I0
Positive-, negative-, and zero-sequence currents.
Frequency, FREQ (Hz)
Instantaneous power system frequency (monitored on channel VA).
a
If true three-phase voltage is not connected, the voltage (VA,B,C) uses phantom voltages derived from a single-phase voltage to calculate
MW/MVAR, MWh/MVARh, and power factor metering values.
Recloser Wear Monitor
Reclosers suffer mechanical and electrical wear every
time they operate. The recloser wear monitor measures
unfiltered ac current at the time of trip and the number of
close-to-open operations as a means of monitoring this
wear. Every time the recloser trips, the recloser control
records the magnitude of the raw current in each phase.
This current information is integrated on a per-phase basis.
When the result of this integration exceeds the threshold
the recloser wear curve establishes, the SEL-351R
Falcon asserts a logic point for the affected phase. This
logic point can be routed for alarming or to modify
SEL-351R Falcon Data Sheet
reclosing (e.g., shorten the number of reclosures). This
method of monitoring recloser wear is based solidly on
methods of breaker rating from breaker manufacturers.
Figure 4 shows three setpoints necessary to emulate a
breaker wear curve. Program the setpoints in Figure 4 to
customize the recloser wear curve.
The SEL-351R Falcon sets setpoints automatically
according to recommendations for reclosers in ANSI
C37.61-1973. Only the recloser type (oil or vacuum) and
the interrupt rating are necessary settings.
Schweitzer Engineering Laboratories, Inc.
5
Close-to-Open (C/O Axis)
(COSP1, KASP1)
(COSP2, KASP2)
(COSP3, KASP3)
kA Interrupted (kA Axis)
Figure 4
Recloser Contact Wear Curve and Settings
Fault Locator
The SEL-351R Falcon provides an accurate estimate of
fault location even during periods of substantial load
flow. The fault locator uses fault type, replica line impedance settings, and fault conditions to develop an estimate
of fault location without communications channels, spe-
cial instrument transformers, or prefault information.
This feature contributes to efficient dispatch of line
crews and fast restoration of service. The fault locator
requires three-phase voltage inputs.
Automation
Flexible Control Logic
and Integration
Schweitzer Engineering Laboratories, Inc.
A02
Z03
Z02
Z01
A03
A01
196-1215
A14
A13
Z07
Z06
A12
A11
Z05
A08
A06
A04
A02
A07
A05
Z03
GND
SERIAL
PORT 3
REMOTE
ENABLED
WAKE UP
ALTERNATE
SETTINGS
Z04
N/C
N
SERIAL
PORT 2
H
N/C
IN102
AUX 2
Z02
Z01
A03
A01
196-1215
LOCK
(press for 3 sec)
A22
A21
Z14
Z13
CLOSE
RECLOSER
CLOSED
TRIP
RECLOSER
OPEN
BAT 3A
BAT-
A20
A19
A18
Z12
Z11
A17
Z10
A10
A09
Z15
IN101
RECLOSE
ENABLED
BAT+
IRIG-B
Z09
RET
SERIAL PORT 1
SEF
12 V
N/C
81
G
AUX 1
RET
IN104
HIGH
CURRENT
C
A
FAST
CURVE
B
B/D
TRIP
A
IN103
HOT LINE
TAG
LOCKOUT
GROUND
ENABLED
C
BATTERY
PROBLEM
CYCLE
CONTROL STATE
E
AC
SUPPLY
RESET
F
CONTROL
ENABLED
A16
A15
A14
A13
Z09
Z08
Z07
Z06
NS
Z10
Z08
A23
VS
A16
A15
A24
N
Z11
ALARM
A
Z13
Z12
A17
OUT107
A18
Z17
A25
V3
BAT 3A
BAT+
Z15
Z14
A20
A19
A26
V2
A21
Z18
A27
Z16
N/C
N/C
ALARM
EXIT
N/C
RECLOSER
OPEN
GROUP
A12
A11
Z05
V1
SERIAL
PORT 3
GND
N/C
H
SERIAL
PORT 2
N
(press for 3 sec)
TRIP
BAT-
SERIAL PORT 1
LOCK
CNTRL
A10
A09
A08
A06
A04
A02
A07
A05
Z04
Z03
IN
A04
A05
Z04
RECLOSER
CLOSED
SET
OUT104
A06
A07
CLOSE
OTHER
I3
A08
RET
N/C
ALTERNATE
SETTINGS
A09
IN101
IN102
A10
STATUS
Z02
I2
Z05
WAKE UP
SELECT
Z01
I1
A11
REMOTE
ENABLED
12 V
IRIG-B
Z06
AUX 2
Z19
EVENTS
CANCEL
RET
IN104
Z07
A12
RECLOSE
ENABLED
OUT107
A14
A13
Z09
Z08
A22
B/D
SEF
IN103
81
G
AUX 1
C
HIGH
CURRENT
C
E
FAST
CURVE
B
F
TRIP
A
NS
HOT LINE
TAG
LOCKOUT
GROUND
ENABLED
VS
BATTERY
PROBLEM
CYCLE
CONTROL STATE
N
AC
SUPPLY
RESET
V3
CONTROL
ENABLED
N/C
A16
A15
Z10
N/C
Z11
1
Z20
METER
LAMP
TEST
A23
V2
BAT+
Z13
Z12
3
A28
TARGET
RESET
A24
V1
SERIAL
PORT 3
GND
N
N/C
RET
Z15
Z14
A17
F01
2
OUT103
A01
RECLOSER
OPEN
A18
Z17
A25
Z16
A20
A19
Z19
Z18
A27
A26
Z22
7
5
4
OUT102
Z01
A03
(press for 3 sec)
TRIP
EXIT
+
8
OUT101
A02
Z03
Z02
LOCK
GROUP
IN
A04
A05
Z04
CNTRL
OUT104
A06
A07
RECLOSER
CLOSED
SET
I3
A08
CLOSE
BAT 3A
SERIAL PORT 1
ALTERNATE
SETTINGS
A09
IN101
IN102
A10
OTHER
I2
Z05
WAKE UP
STATUS
OUT103
A11
REMOTE
ENABLED
SELECT
I1
Z06
AUX 2
A21
1
BAT-
IRIG-B
Z07
A12
RECLOSE
ENABLED
A22
3
OUT102
A14
A13
Z09
Z08
12 V
N/C
SEF
EVENTS
CANCEL
_
N/C
2
RET
IN104
81
G
AUX 1
A
HIGH
CURRENT
C
B/D
FAST
CURVE
B
IN103
TRIP
A
E
HOT LINE
TAG
LOCKOUT
GROUND
ENABLED
F
BATTERY
PROBLEM
CYCLE
CONTROL STATE
NS
AC
SUPPLY
RESET
F01
Z23
Z21
7
5
4
Z20
METER
LAMP
TEST
A23
VS
CONTROL
ENABLED
ALARM
A16
A15
Z10
OUT107
Z11
+
A28
TARGET
RESET
A24
V3
A
B/D
Z12
A17
Z17
A25
V2
Z15
Z14
Z13
A26
Z16
N/C
A18
Z19
Z18
A27
C
EXIT
N
GROUP
V1
CNTRL
N/C
A19
E
IN103
N/C
SET
A20
196-1215
Figure 5
OTHER
IN
RECLOSER
OPEN
N/C
TRIP
STATUS
Z26
Z24
RECLOSER CONTROL
Z22
8
OUT101
(press for 3 sec)
RECLOSER
CLOSED
A21
OUT104
LOCK
CLOSE
A22
OUT103
ALTERNATE
SETTINGS
SELECT
OUT104
WAKE UP
EVENTS
CANCEL
OUT103
REMOTE
ENABLED
ALARM
AUX 2
OUT107
RECLOSE
ENABLED
IN101
IN102
SEF
F
81
G
AUX 1
NS
HIGH
CURRENT
C
VS
FAST
CURVE
B
V3
TRIP
A
V2
HOT LINE
TAG
LOCKOUT
GROUND
ENABLED
I2
BATTERY
PROBLEM
CYCLE
CONTROL STATE
I1
AC
SUPPLY
RESET
METER
LAMP
TEST
A23
Z16
CONTROL
ENABLED
Z20
A28
TARGET
RESET
A24
I2
BAT+
Z17
A25
OUT102
A26
1
I1
Z19
Z18
A27
_
N/C
3
OUT101
IN104
EXIT
RET
N/C
GROUP
12 V
CNTRL
N/C
SET
F01
2
RET
OTHER
C
STATUS
N
SELECT
V1
EVENTS
CANCEL
7
5
4
BAT-
1
Z20
METER
LAMP
TEST
BAT 3A
3
A28
TARGET
RESET
+
Z23
Z21
8
N/C
2
IN
SERIAL PORT 1
F01
I3
IRIG-B
7
5
4
RECLOSER CONTROL
Z22
Z21
_
Z25
Z24
Z23
H
SERIAL
PORT 2
N
H
SERIAL
PORT 2
RECLOSER CONTROL
Z22
8
N/C
Z26
Z25
Z24
Z23
Z21
+
N/C
Z26
Z25
Z24
_
I3
SERIAL
PORT 3
GND
N/C
Z26
Z25
RECLOSER CONTROL
OUT102
Apply an SEL-2032 as the hub of a star network, with a
point-to-point fiber or copper connection between the
hub and the SEL-351R Falcon, as in Figure 5. The
SEL-2032 supports external communications links,
including the public switched telephone network for
engineering access to dial-out alerts and private line
connections of the SCADA system.
DNP SCADA Link
ASCII Reports
Plus Interleaved
Binary Data
OUT101
The SEL-351R Falcon has three independently operated
serial ports: two EIA-232 ports and one optional
EIA-485 port on the side. The recloser control does not
require special communications software. Use any
system that emulates a standard terminal system.
Establish communication by connecting computers,
modems, protocol converters, printers, the SEL-3530
RTAC, an SEL-2032, SEL-2030 or SEL-2020
Communications Processor, SCADA serial port, and/or
RTU for local or remote communication.
Dial-Up ASCII Link
A03
A 01
196-1215
Example Communication System
SEL manufactures a variety of standard cables for
connecting this and other IEDs to a variety of external
devices. Consult your SEL representative for more
information on cable availability.
SEL-351R Falcon Data Sheet
6
Table 3
Open Communications Protocols
Type
Description
Simple ASCII
Plain language commands for human- and simple-machine communications. Use for metering, setting, self-test
status, event reporting, and other functions.
Compressed ASCII
Comma-delimited ASCII data reports. Allows external devices to obtain relay data in an appropriate format for
direct import into spreadsheets and database programs. Data are checksum protected.
Extended Fast Meter
and Fast Operate
Binary protocol for machine-to-machine communications. Quickly updates SEL communications processors,
RTUs, and other substation devices with metering information, relay element, I/O status, time-tags, open and
close commands, and summary event reports. Data are checksum protected.
Binary and ASCII protocols operate simultaneously over the same communications lines so control operator
metering information is not lost while a technician is transferring an event report.
Distributed Port
Switch Protocol
Enables multiple SEL devices to share a common communications bus (two-character address setting range is
01–99). Use this protocol for low-cost, port-switching applications.
DNP3 Level 2
Outstation
Distributed Network Protocol with point remapping. Includes access to metering data, protection elements,
contact I/O, targets, SER, relay summary event reports, and setting groups.
ACSELERATOR QuickSet SEL-5030
and ACSELERATOR QuickSet
Designer SEL-5031
Use ACSELERATOR QuickSet SEL-5030 to develop settings off-line. The system automatically checks interrelated settings and highlights out-of-range settings.
Transfer the settings created off-line to the SEL-351R
Falcon using a PC communications link. The software
converts event reports to oscillograms with time-coordinated element assertion and phasor/sequence element
diagrams. The ACSELERATOR QuickSet interface supports Microsoft® Windows® operating systems. View
real-time phasors via ACSELERATOR QuickSet.
Figure 6
QuickSet Designer® SEL-5031 Software
additionally allows users to create personalized
Application Designs. Use Application Designs within
ACSELERATOR QuickSet Designer to quickly implement
advanced schemes such as automatic network
reconfiguration. Application Designs hide settings you
do not want changed (e.g., SELOGIC control equations),
while making visible the minimum necessary settings
(e.g., timer and pickup settings) to implement the
scheme. You can alias and manipulate mathematically all
settings for simple end-user interfacing. You can also
define custom notes and settings ranges. Application
Designs enhance security by allowing access to only a
specified group of settings. Create Application Designs
that include the most commonly used relay features and
settings for your system (see Figure 6) and watch
commissioning times drop drastically.
ACSELERATOR
Example Application Design
SEL-351R Falcon Data Sheet
Schweitzer Engineering Laboratories, Inc.
7
Advanced Capabilities for Maximum Control
Selective Load Shedding
for Improved System Response
trol provides you the power to segment the feeder to
maximize load preservation while still responding to system conditions. You can set the reclosers serving the residential loads with as many as six levels of frequency and
time conditions to coordinate with other controls during
a loss of generation.
Use retrofit recloser controls to preserve critical loads
while balancing system loading. In the example in
Figure 7, the same feeder serves both Fire Department
and Hospital as residential loads. Incorporating underfrequency elements into the SEL-351R Falcon recloser con-
Fire Department
and Hospital
Substation
Residential
1
1
SERIAL
PORT 3
N
SERIAL
PORT 2
A22
A21
Z
A19
A18
12
E
Z
NS
CLOSE
RECLOSER
CLOSED
TRIP
RECLOSER
OPEN
ALARM
OUT107
A14
Z09
Z08
Z07
Z06
BAT 3A
BATBAT+
A12
A11
Z05
A10
A09
IN
OUT104
A02
I3
OUT102
A04
A05
Z04
Z03
Z02
I2
OUT103
A06
A07
Z01
I1
A08
OUT101
4
T10
OU
N/C
AL
AR
M
7
T10
9
A0
(press for 3 sec)
5
3
A13
N
V2
0
Z0
A1
LOCK
6
11
Z0
A
V3
12
A03
IN
T10
A16
A15
7
N/
C
VS
OU
A
Z0
N/
C
13
OU
Z11
8
A
Z0
4
I3
2
Z12
F
11
A1
Z0
3
A0
A01
I2
T10
Z13
A17
1
2
A0
I1
IRIG-B
IRIG-B
C
9
13
A1
Z
B/
D
4
0
A2
Z1
ALTERNATE
SETTINGS
9
OU
Z14
A20
Z10
2
1
RET
N/C
N/C
IN103
IN102
WAKE UP
N/C
1
A
A2
15
RE
Z
IN1
01
T
2
A2
IN1
03
6
IN1
02
Z1
5
Z0
A1
Z0
4
A0
T10
12 V
SERIAL PORT 1
12
V
17
AUX 2
REMOTE
ENABLED
IN101
N/
C
Z15
BA
T-
RE
T
8
RECLOSE
ENABLED
3
5
A0
Z0
OU
RET
IN104
SEF
A
G
AUX 1
B/D
C
C
B
E
A
F
LOCKOUT
GROUND
ENABLED
NS
CYCLE
VS
RI
SE
T
BA
Z1
N/
C
A23
N
RESET
3
A2
V1
Z17
A24
V3
81
0
6
6
A0
A01
Z18
A25
V2
HIGH
CURRENT
BA
T+
19
04
Z
IN1
A26
V1
FAST
CURVE
V1
BATBAT+
RET
SE
PO RI
RT AL
3
GN
D
N/
C
N
TRIP
Z1
A1
IN
N/C
1
A27
H
HOT LINE
TAG
0
4
A2
17
I3
N/C
SE
PO RI
RT AL
2
1
RT
PO
AL
BATTERY
PROBLEM
I2
IN104
12 V
RET
A
AC
SUPPLY
A
I1
IN103
B/D
C
E
CONTROL
ENABLED
CONTROL STATE
Z2
IN102
1
1
F
2
2
IN101
EXIT
Z2
1
F0
3
Z
5
A2
NS
GROUP
4
6
A2
VS
3
5
7
A2
N
Z2
C
N/
8
A2
ALARM
CNTRL
IT
EX
V3
4
7
P
OUT107
SET
Z16
+
OU
V2
OTHER
8
GR
8
N/C
Z2
_
2
L
A1
N/C
3
2
1
OUT104
4
Z
TR
X
AU
F
SE
OUT103
STATUS
5
SELECT
4
OUT102
Z2
EVENTS
CANCEL
Z0
OUT101
6
L
Z2
O
TR
CN
81
Z02
Z01
A03
F01
Z19
METER
LAMP
TEST
7
A0
A02
Z03
7
5
A28
TARGET
RESET
8
A0
A04
A05
Z04
R
A06
A07
E
OS
CL N
RE PE
O
A08
G
2
A10
A09
UP
Z05
KE
Z06
C
Z09
Z08
Z07
T
GH
HI EN
RR
CU
Z10
A12
A11
X
AU
A14
IP
TR
RECLOSER
OPEN
A13
ER
OS D
CL SE
RE LO
C
TRIP
A16
A15
SE
CLO
(press for 3 sec)
RECLOSER
CLOSED
Z11
A
W
LOCK
CLOSE
Z13
Z12
A17
c)
ALTERNATE
SETTINGS
A18
(p
WAKE UP
A19
se
3
CK for
LO ress
AUX 2
REMOTE
ENABLED
Z14
A20
E
OT ED
M BL
E
RE NA
AT
N S
E
ER G
LT IN
A ETT
S
RECLOSE
ENABLED
A22
A21
T
SEF
B
G
AUX 1
ST E
FA RV
CU
C
IP
TR
B
SE
A
E
LIN
T G
HO TA
LOCKOUT
GROUND
ENABLED
R
CYCLE
CONTROL STATE
HE
OT
RESET
Z15
+
8
Z20
US
AT
ST
81
CT
LE
SE
HIGH
CURRENT
A
FAST
CURVE
Y
ER M
TT LE
BA OB
PR
TRIP
D
D
UN E
O BL
GR NA
E
HOT LINE
TAG
E
AT
ST
BATTERY
PROBLEM
E
OS ED
CL BL
RE NA
E
AC
SUPPLY
T
OU
CK
LO
L
RO
NT
CO
Z16
CONTROL
ENABLED
TS
Z17
N
Z19
Z18
A23
CO
Z20
A25
A24
EN
A26
R
1
A27
AC LY
PP
SU
EXIT
EV
GROUP
ER
CNTRL
ET
SET
M
OTHER
EL
NC
CA
STATUS
E
CL
CY
SELECT
T
SE
RE
EVENTS
CANCEL
IR
IG
-B
2
_
N/C
3A
3
ET
RG T
TA SE P
RE
M
LA ST
TE
SERIAL PORT 1
4
L
RO D
NT LE
CO AB
EN
METER
LAMP
TEST
F01
E
OS
CL
RE
5
A28
TARGET
RESET
Residential
7
N/C
Z22
Z21
8
BAT 3A
+
Z23
H
RECLOSER CONTROL
Z22
H
SERIAL
PORT 2
N
Z24
Z23
Z21
_
GND
Z26
Z25
Z24
N/C
GND
N/C
SERIAL
PORT 3
1
Z26
Z25
RECLOSER CONTROL
A0
1
196-1215
196-1215
15
-12
196
Figure 7
Implement Underfrequency Load Shedding With SEL-351R Falcon Recloser Controls to Preserve Critical Loads
1
Source
3
2
Load
1
SEL-351R
Falcon
SEL-2815
Figure 8
Fiber-Optic Cable
TX
RX
1
Source
3
SEL-351R
Falcon
TX
RX
SEL-2815
Improve Service Reliability for Load With Two SEL-351R Falcon Recloser Controls Communicating Over Fiber
Dual Source for
Premium Reliability
Either Recloser 1 or Recloser 2 can serve the load in
Figure 8. The respective SEL-351R Falcon detects the
state of source- and load-side voltages. The controls
communicate via fiber-optic cable to determine whether
the load should be transferred quickly to the other source
in the event of an outage. MIRRORED BITS
communications technology and SEL-2815 Fiber-Optic
Transceivers accomplish this communication reliably
and economically.
Schweitzer Engineering Laboratories, Inc.
Automatic Network
Reconfiguration for
Distribution Flexibility
Systems using automatic network reconfiguration, such
as the one in Figure 9, improve service factors by
removing permanently faulted segments without
interrupting service from nonfaulted segments. Use the
SEL-351R Falcon in a variety of possible systems, either
with or without communications between devices. You
can set analog logic and counters to detect loss of voltage
SEL-351R Falcon Data Sheet
8
conditions indicating upstream recloser openings.
Change setting groups in intermediate recloser controls
to reverse direction when the tie recloser is closed. Use
either reclose shot counting or time coordination to
determine a faulted segment.
Source
Recloser
Optional voltage elements provide three-phase
measurements from one side of the recloser and a singlephase measurement from the other side.
Intermediate
Recloser
Source
Z06
Z05
AUX 2
WAKE UP
ALTERNATE
SETTINGS
A09
A06
A04
A02
A07
A05
Z04
Z03
Z02
Z01
SERIAL
PORT 2
N
Z14
Z13
LOCK
(press for 3 sec)
CLOSE
RECLOSER
CLOSED
TRIP
RECLOSER
OPEN
A03
A01
N/C
N/C
BAT 3A
BAT12 V
A20
A19
A18
Z12
Z11
A17
Z10
A10
A08
GND
SERIAL
PORT 3
AUX 1
RECLOSE
ENABLED
BAT+
IRIG-B
GROUND
ENABLED
REMOTE
ENABLED
A12
A11
IN102
CONTROL STATE
A22
A21
A16
A14
A15
A13
Z09
Z08
Z07
Z06
Z05
A12
A11
A10
A09
A08
A06
A04
A02
A07
A05
Z04
Z03
Z02
Z01
1
A03
A01
196-1215
SERIAL
PORT 3
Z07
Z15
IN101
Z11
RET
SERIAL PORT 1
SEF
RET
IN104
G
A
C
B/D
B
IN103
81
C
A
HIGH
CURRENT
E
LOCKOUT
FAST
CURVE
F
CYCLE
TRIP
NS
RESET
BATTERY HOT LINE
PROBLEM
TAG
VS
ALARM
OUT107
A13
A23
N
Z12
Z10
Z09
Z08
A24
ALARM
AC
SUPPLY
A17
A15
Z17
A25
Z16
CONTROL
ENABLED
N/C
A18
A26
OUT107
Z13
Z18
A27
V3
EXIT
V2
A
Z14
B/D
IN103
GROUP
196-1215
Z26
GND
RECLOSER
OPEN
CNTRL
Z25
N/C
RECLOSER
CLOSED
TRIP
SET
N/C
CLOSE
OTHER
OUT104
(press for 3 sec)
STATUS
OUT103
LOCK
SELECT
OUT102
WAKE UP
ALTERNATE
SETTINGS
A19
A14
N/C
REMOTE
ENABLED
Z19
EVENTS
CANCEL
A20
A16
N/C
AUX 2
OUT104
AUX 1
RECLOSE
ENABLED
OUT103
GROUND
ENABLED
IN101
CONTROL STATE
A22
A21
E
IN102
SEF
F
G
NS
C
VS
B
Z15
V2
81
V1
A
HIGH
CURRENT
I2
LOCKOUT
FAST
CURVE
I1
CYCLE
TRIP
METER
LAMP
TEST
A23
OUT102
RESET
BATTERY HOT LINE
PROBLEM
TAG
1
Z20
TARGET
RESET
A24
OUT101
AC
SUPPLY
3
2
A28
A25
Z16
CONTROL
ENABLED
4
V1
Z17
F01
IN
BAT+
RET
A26
5
I3
Z19
Z18
A27
N/C
OUT101
IN104
EXIT
N/C
GROUP
12 V
CNTRL
N/C
SET
+7
RET
OTHER
C
STATUS
N
SELECT
V3
EVENTS
CANCEL
BAT-
1
Z20
METER
LAMP
TEST
Fiber-Optic Cable
Communication
_8
I2
3
2
A28
TARGET
RESET
BAT 3A
4
IN
SERIAL PORT 1
+7
F01
Z23
Z21
_8
I3
IRIG-B
Z21
5
Z22
H
N
RECLOSER CONTROL
H
SERIAL
PORT 2
Z24
Z23
Z22
N/C
Z26
Z25
Z24
RECLOSER CONTROL
I1
Z25
GND
Z26
3
N/C
1
SERIAL
PORT 3
1
N/C
3
N
Tie Recloser
(Normally
Open)
Z23
Z22
H
SERIAL
PORT 2
Z24
RECLOSER CONTROL
5
F01
4
3
2
A24
A23
N/C
Z16
SEF
GROUND
ENABLED
AUX 1
RECLOSE
ENABLED
AUX 2
(press for 3 sec)
A22
A21
Z14
Z13
A20
A19
A18
Z12
Z11
A17
RECLOSER
CLOSED
TRIP
RECLOSER
OPEN
ALARM
N/C
A14
N/C
WAKE UP
CLOSE
A16
OUT107
Z10
REMOTE
ENABLED
LOCK
IN101
CONTROL STATE
ALTERNATE
SETTINGS
Z15
IN103
G
E
C
IN102
B
F
81
A15
A13
Z09
Z08
Z07
Z06
3
A12
A11
Z05
A10
A09
OUT104
A
HIGH
CURRENT
A08
A06
A04
A02
A07
A05
Z04
Z03
Z02
I2
LOCKOUT
FAST
CURVE
OUT103
CYCLE
TRIP
Z01
I1
RESET
BATTERY HOT LINE
PROBLEM
TAG
OUT102
AC
SUPPLY
OUT101
CONTROL
ENABLED
12 V
Z17
A25
RET
N/C
A26
A
IN104
Z18
A27
B/D
EXIT
C
GROUP
NS
CNTRL
VS
SET
N
OTHER
V3
STATUS
V2
SELECT
V1
EVENTS
CANCEL
BAT+
Z19
METER
LAMP
TEST
RET
Z20
TARGET
RESET
BAT-
1
A28
Fiber-Optic Cable
Communication
BAT 3A
N/C
IN
SERIAL PORT 1
+7
I3
IRIG-B
Z21
_8
A03
A01
196-1215
Source
Recloser
Intermediate
Recloser
Source
A13
SEF
Z07
Z06
Z05
RECLOSE
ENABLED
AUX 2
A09
A06
A04
A02
A07
A05
Z03
Z02
Z01
A22
A21
LOCK
A03
A01
(press for 3 sec)
N
Z14
Z13
WAKE UP
CLOSE
RECLOSER
CLOSED
TRIP
RECLOSER
OPEN
BAT 3A
BATBAT+
A20
A19
A18
Z12
Z11
A17
Z10
REMOTE
ENABLED
ALTERNATE
SETTINGS
Z04
RET
N/C
N/C
Z15
IN102
AUX 1
IN101
GROUND
ENABLED
A16
A14
A10
A08
GND
SERIAL
PORT 3
81
G
12 V
IRIG-B
HIGH
CURRENT
C
RET
SERIAL PORT 1
FAST
CURVE
B
A
TRIP
B/D
IN104
A
IN103
LOCKOUT
C
BATTERY HOT LINE
PROBLEM
TAG
E
CYCLE
CONTROL STATE
F
AC
SUPPLY
RESET
A15
A13
Z09
Z08
Z07
Z06
NS
Z09
Z08
A12
A11
A23
Z16
CONTROL
ENABLED
Fiber-Optic Cable
Communication
A24
VS
A14
A15
Z10
Z17
A25
ALARM
A16
A26
OUT107
Z11
N/C
Z13
Z12
Z18
A27
N
EXIT
V3
GROUP
V2
CNTRL
A12
A11
Z05
V1
A
B/D
IN103
Z15
Z14
196-1215
Figure 9
SET
N/C
RECLOSER
OPEN
OTHER
A10
A09
OUT104
RECLOSER
CLOSED
TRIP
STATUS
A08
OUT103
(press for 3 sec)
WAKE UP
CLOSE
SELECT
A06
OUT102
LOCK
Z19
EVENTS
CANCEL
A04
OUT101
IRIG-B
ALTERNATE
SETTINGS
IN101
IN102
REMOTE
ENABLED
A18
A17
NS
AUX 2
A19
1
Z20
METER
LAMP
TEST
A20
ALARM
RECLOSE
ENABLED
A21
OUT107
AUX 1
N/C
GROUND
ENABLED
A22
VS
SEF
N
81
G
V3
HIGH
CURRENT
C
V2
FAST
CURVE
B
V1
TRIP
N/C
A
OUT104
LOCKOUT
OUT103
BATTERY HOT LINE
PROBLEM
TAG
OUT102
CYCLE
CONTROL STATE
OUT101
AC
SUPPLY
RESET
2
A28
TARGET
RESET
A23
Z16
CONTROL
ENABLED
Fiber-Optic Cable
Communication
A24
A02
A07
A05
Z04
Z03
IN
BAT+
Z17
A25
F01
3
Z02
I2
A26
5
4
Z01
I1
Z19
Z18
A27
12 V
N/C
N/C
IN104
EXIT
RET
GROUP
C
CNTRL
E
SET
N/C
F
OTHER
IN
STATUS
I3
SELECT
I2
EVENTS
CANCEL
RET
Z20
METER
LAMP
TEST
BAT-
1
A28
TARGET
RESET
BAT 3A
F01
3
2
_8
+7
I1
SERIAL PORT 1
+7
4
Z23
Z21
_8
N/C
Z22
H
SERIAL
PORT 2
N
RECLOSER CONTROL
H
SERIAL
PORT 2
Z24
Z23
Z22
Z21
5
Z26
Z25
Z24
RECLOSER CONTROL
I3
Z25
GND
Z26
3
N/C
1
SERIAL
PORT 3
1
N/C
3
A03
A01
196-1215
Automatic Network Reconfiguration Showing Improved Service
Added Capabilities
MIRRORED BITS Relay-to-Relay
Communications
single SEL-351R Falcon. With MIRRORED BITS operating on two serial ports, there is communication upstream
and downstream from the SEL-351R Falcon site.
The SEL-patented MIRRORED BITS communications
technology provides bidirectional relay-to-relay digital
communication. MIRRORED BITS can operate independently on as many as two EIA-232 serial ports on a
This bidirectional digital communication creates eight
additional virtual outputs (transmitted MIRRORED BITS)
and eight additional virtual inputs (received MIRRORED
SEL-351R Falcon Data Sheet
Schweitzer Engineering Laboratories, Inc.
9
BITS) for each serial port operating in the MIRRORED
BITS mode (see Figure 10). Use these MIRRORED BITS to
transmit/receive information between an upstream relay
and a downstream recloser control to enhance
coordination and achieve faster tripping for downstream
faults. MIRRORED BITS technology also helps reduce
total scheme operating time by eliminating the need to
assert output contacts to transmit information.
SEL-351S Relay
TMB1
Transmit
TMB2
.
.
TMB8
RMB1
Receive
RMB2
.
.
RMB8
Figure 10
SEL-351R Falcon Recloser Control
0
1
0
0
.
.
0
.
.
0
1
0
0
0
.
.
.
.
0
0
TMB1
TMB2
.
.
Transmit
TMB8
RMB1
RMB2
.
.
Receive
RMB8
MIRRORED BITS Transmit and Receive Bits
Advanced SELOGIC
Control Equations
Advanced SELOGIC control equations allow you to
assign relay outputs to any logical combination of Relay
Word elements or inputs.
Program SELOGIC control equations by combining relay
elements, inputs, and outputs with SELOGIC control
equation operators. Bits in a table called the “Relay
Word” reflect the state of all logical elements in the
recloser control. These logical elements include all
current (50/51) and directional-level detecting elements,
timer elements, SELOGIC control equation variables,
inputs, outputs, and remote, local, and latched bits.
SELOGIC control equation operators include OR, AND,
invert, parentheses, and rising and falling edges of
element state changes. Analog compare functions (<, >,
=, < >) are also available. These functions add control
flexibility to customize logic based on recloser shot
count or other control values.
The basic building blocks of SELOGIC control equations
are the Relay Word bits. The Relay Word bits are simple
digital quantities having a logical value of either 0 or 1.
The terms “assert” or “asserted” refer to a Relay Word
bit that has a value of 1 or is changing from 0 to 1. The
terms “deassert” or “deasserted” refer to a Relay Word
bit that has a value of 0 or is changing from 1 to 0.
Various elements within the recloser control assert or
deassert Relay Word bits. Use these elements in the fixed
internal logic of the recloser control to make decisions,
to interpret inputs, or to drive outputs. These bits are
available so that you can exercise flexibility in defining
inputs or outputs, in specifying control variables for
internal logic, or in creating special customized logic
through the use of SELOGIC control equations.
In addition to Boolean logic, 16 general purpose
SELOGIC control equation timers eliminate external
timers for custom protection or control schemes. Each
timer has independent time-delay pickup and dropout
settings. Program each timer input with any element
(e.g., time qualify a voltage element) you specify. Assign
the timer output to trip logic, transfer trip
communications, or other control scheme logic.
The SEL-351R Falcon has the same SELOGIC control
equations capability as the established SEL-351R-2.
Hardware Overview
The convenient side-panel construction of the SEL-351R
Falcon provides easy access to all controls and connections.
Communications ports, contacts, and control cable
connection points are all readily available. Labeling is
shown in Figure 14 (right-hand side).
i4422b
Figure 11
SEL-351R Falcon Module Side Panel
Schweitzer Engineering Laboratories, Inc.
SEL-351R Falcon Data Sheet
10
NEMA Type 3R
(IP32) Enclosure
Recloser Control Connections
Available in Lift-To-Open (Figure 16) and Swing-Open
(Figure 17) enclosure options.
Terminals
The control cable from the recloser attaches at the
bottom of the SEL-351R Falcon enclosure to a standard
receptacle. The wiring from this receptacle continues
into the control itself, with the currents and control
landing on the side-panel terminals.
Mount
user-supplied
accessory
panel
Mount
SEL-2401
and/or
SEL-3022
Relay
Module
The 120 or 230 Vac power parallels voltage channel V1,
as shown in the retrofit of a traditional installation in
Figure 13. If you order the SEL-351R Falcon with
additional voltage channels V2, V3, and VS, connect true
three-phase voltage and synchronism-check voltage to
the side-panel terminals.
An internal battery monitor/charger provides battery
charging/discharging.
Through
this
battery
monitor/charger the SEL-351R Falcon can monitor
battery voltage. The SEL-351R Falcon puts itself to sleep
if voltage falls to a user-set threshold (or if a user-set
timer times out) after an extended outage.
Batteries
The SEL-351R Falcon can also be powered with
125 Vdc or 250 Vdc.
Control Cable
Receptacle
Figure 12 SEL-351R Falcon Lift-To-Open Enclosure
With Door Open (wiring not shown)
SEL-351R Falcon Recloser Control (not including front panel)
Trip and Close
Control
Cable
As many as
6 Optoisolated
Inputs
As many as
7 Output
Contacts/1 Alarm
Recloser Status
24 or 36 Vdc Out
I1, I2, I3, IN
VS (synchronism check)
Ordering
Option
SCADA
or
Other
Control
V3
V2
EIA-485
V1 (also monitors frequency)
Ordering
Option
EIA-232
EIA-232
Close Power
(if recloser
is equipped)
Power In
Control
Power Supply
120 Vac or
230 Vac Power
12 Vdc power
to SEL-2401 or
SEL-3622 (if installed)
36 Vdc
Power Supply
12 Vdc Out
Battery
Monitor/
Charger
12 Vdc
Power Supply
24 Vdc
Lead-Acid
Battery
Figure 13
SEL-2401 or
SEL-3622 or
SEL-2925
+
—
Connections Inside the SEL-351R Falcon Enclosure
SEL-351R Falcon Data Sheet
Schweitzer Engineering Laboratories, Inc.
11
Front-Panel Interface
The control panel on the SEL-351R Falcon is designed to
provide easy-to-use and flexible operation by field personnel. Figure 14 shows default functions. You can
change most functions by programming to meet system
q
requirements (see Table 4). Use the optional configurable
labels to customize the targets and control pushbuttons to
best meet operational needs.
Display
2 x 16 liquid
crystal display (LCD)
Pushbuttons
w
Status and Trip
Target LEDs
e Operator Controls
i4301b
r
r See noted safety features for CLOSE and TRIP operator controls in Table 4.
Figure 14
SEL-351R Falcon Recloser Control Front-Panel Interface
Schweitzer Engineering Laboratories, Inc.
SEL-351R Falcon Data Sheet
12
Table 4
Factory Default Front-Panel Interface Definitions (see Figure 14)
Function
Definition
➀
PUSHBUTTONS
Except for TARGET RESET/LAMP TEST, the pushbuttons have dual functions (primary/secondary).
After you select a primary function (i.e., METER pushbutton), the pushbuttons operate on their
secondary functions (CANCEL, SELECT, left/right arrows, up/down arrows, EXIT) so you can scroll
through information, activate settings/control, etc., on the LCD.
➁
CONTROL ENABLEDa
SEL-351R Falcon Recloser Control is enabled.
AC SUPPLY
Adequate Vac power is present.
BATTERY PROBLEM
Indicates battery problems.
HOT LINE TAG
No closing or autoreclosing can take place via the control.
TRIP
Trip occurred.
FAST CURVE
Fast curve overcurrent element trip.
HIGH CURRENT
High-set overcurrent element trip.
81
Underfrequency trip.
RESET
The control is in the reset state, ready for a reclose cycle.
CYCLE
The control is actively in the trip/reclose cycle mode.
LOCKOUT
A, B, C
➂
All reclose attempts were unsuccessful.
a
A-, B-, or C-phase involved in fault.
G
Ground involved in fault.
SEF
Sensitive earth fault overcurrent element trip.
GROUND ENABLED
Enables/disables ground overcurrent elements.
RECLOSE ENABLED
Enables/disables autoreclosing.
REMOTE ENABLED
Enables/disables remote control.
ALTERNATE SETTINGS
Switches active setting group between main and alternate setting groups.
LOCK (press for 3 seconds)
Blocks the function of other operator controls (except WAKE UP and TRIP). Three-second delay to
engage/disengage.
AUX 1
User programmable; e.g., program to Trip Test—test autoreclose logic without applying current.
AUX 2
WAKE UP
User programmable; e.g., program to enable/disable fast-curve tripping.
a
Wakes up the control after it has been put to sleep.
CLOSE/RECLOSER CLOSED
Close recloser/recloser closed status.b
TRIP/RECLOSER OPEN
Trip recloser (go to lockout)/recloser open status.c
a
These indicated LEDs and the operator control have fixed functions. Programming at a higher logic level can change functions of all other LEDs
and operator controls (with corresponding status LEDs).
b
You can set the CLOSE operator control with a delay, which allows an operator to press CLOSE and then move a safe distance away from the recloser
before closing proceeds.
c You can set the TRIP operator control with a delay, which allows an operator to press TRIP and then move a safe distance away from the recloser
before tripping proceeds.
SEL-351R Falcon Data Sheet
Schweitzer Engineering Laboratories, Inc.
13
Guideform Specification
The microprocessor-based recloser control shall provide a
combination of functions including protection, monitoring,
control, fault locating, and automation. Recloser control
self-checking functions shall be included. Specific operational and functional requirements are as follows.
➤ Autoreclosing Control. The recloser control shall
incorporate a four-shot control. It shall include
four independently set open time intervals, an independently set reset time from reclose cycle, and an
independently set reset time from lockout.
➤ Coordination With Downstream Reclosers. The
recloser control shall include 38 standard recloser
time-overcurrent curves and sequence coordination
logic for secure and dependable operation.
➤ Phase Fault Overcurrent Protection. The recloser
control shall incorporate phase and negative-sequence
overcurrent elements for detection of phase faults. For
added security, the recloser control shall provide directional elements, load- encroachment logic, and
torque-control capability (internal and external).
➤ Ground Fault Overcurrent Protection. The
recloser control shall incorporate residual ground
overcurrent elements for detection of ground
faults. For added security, the recloser control shall
provide directional elements and torque-control
capability (internal and external).
➤ Phase Under- and Overvoltage Elements. The
recloser control shall incorporate undervoltage and
overvoltage elements for creating protection and
control schemes, including but not limited to voltage checks (e.g., hot bus/dead line) for reclosing;
blown transformer high-side fuse-detection logic;
and control schemes for capacitor banks.
➤ Sequence Voltage Elements. The recloser control
shall incorporate positive-, negative-, and zero-sequence
voltage elements that can be logically configured for
either under- or overvoltage applications.
➤ Under- and Overfrequency Protection. The
recloser control shall incorporate six levels of
under- and overfrequency elements for detection of
power system frequency disturbances. Each setting
level shall use an independently set timer for loadshedding or generator-tripping schemes.
➤ Synchronism Check. The recloser control shall
include two synchronism-check elements with separate
maximum angle settings (e.g., one for autoreclosing
and one for manual closing). The synchronism-check
function shall compensate for close time and constant
phase-angle differences between the two voltage
sources used for synchronism check (phase-angle differences are settable in 30-degree increments).
➤ IED Communications. The recloser control shall
include the capability for communication of internal logic values to a remote relay or recloser control via serial communications. These values shall
be available for use in control logic.
➤ Secure Communications. The recloser control shall
include an optional accessory for converting an
EIA-232 serial port to encrypted and authenticated
Schweitzer Engineering Laboratories, Inc.
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
➤
IEEE 802.11b wireless communication. Software shall
be provided with this accessory to allow a personal
computer (PC) or personal data assistant (PDA) access
to the wireless port.
Operator Controls. The recloser control shall
include 10 operator controls on the recloser control
front panel; these functions shall also be accessible
in the recloser control logic. Nine of the operator
controls shall include pushbuttons and LEDs with
programmable functions and indications.
Event Reporting and Sequential Events
Recorder (SER). The recloser control shall be capable of automatically recording disturbance events of
15 or 30 cycles with settable prefault duration and
user-defined triggering. Events shall be stored in nonvolatile memory. The recloser control shall include an
SER that stores the latest 512 entries.
Status and Trip Target LEDs. The recloser control shall include 16 status and trip target LEDs.
Recloser Wear Monitor. The recloser control
shall include a recloser wear monitor with
user-definable wear curves, operation counter, and
accumulated interrupted currents by phase.
Battery Monitor. The recloser control shall measure
and report the battery voltage level. User-selectable
parameters shall be provided to put the control to sleep
for low battery voltage or for a lengthy outage.
Fault Locator. The recloser control shall include a
fault-locating algorithm to provide an accurate estimate
of fault location without communications channels, special instrument transformers, or prefault information.
Automation. The recloser control shall include
16 local control elements, 16 remote control logic
points, 16 latching logic points, and 16 display messages in conjunction with a local display panel. The
recloser control shall have the capability to display custom messages.
Recloser Control Logic. The recloser control shall
include programmable-logic functions for a wide range
of user-configurable protection, monitoring, and control
schemes.
Communication. The recloser control shall
include two independent EIA-232 serial ports and
one optional EIA-485 serial port for external communication. There shall be an option for DNP3
Level 2 protocol with bitmapping.
IRIG-B. The recloser control shall include an interface
port for a demodulated IRIG-B time synchronization
input signal.
PC Software. The recloser control shall include compatibility with a PC software program for use in programming control settings and logic functions, and
retrieving event data. The PC software shall be included,
but it is not necessary to use the recloser control.
Power Supply. The recloser control shall accept
120 Vac or 230 Vac (or 125 Vdc or 250 Vdc).
Warranty. The relay shall have a minimum
10-year worldwide warranty.
SEL-351R Falcon Data Sheet
14
Wiring Diagram
IN
101
Z01
Z02
Z03
Z04
I1
I2
I3
Z05
Z06
Z07
Z08
Z09
Z10
V1
V2
V3
N
VS
JUMPER CONFIGURABLE
OUT103
VOLTAGE INPUTS
IN
NS
OUT107*
ALARM
* OUT107 CAN OPERATE AS EXTRA ALARM
IRIG-B
+ —
2 3 4 5 N/C 7 8
ORDERING OPTION
ISOLATED EIA-485
PORT 1 (SIDE)
1
EIA-232 &
IRIG-B
PORT 2 (SIDE)
DB9
PORT 3 (SIDE)
EIA-232
DB9
HV FET Close
HV FET Trip
C
Monitored Trip
B/D Circuit Points
+
A
24 Vdc or 36 Vdc —
+
12 Vdc
12 Vdc
Power Supply
—
+
Battery
24 Vdc
28 Vdc —
Monitor/Charger
See Note 1
+
—
36 Vdc
Power Supply
Return
Control
Power Supply
FRONT-PANEL TARGET LEDS
36 Vdc
CONTROL
ENABLED
AC
SUPPLY
RESET
CYCLE
BATTERY HOT LINE
PROBLEM
TAG
LOCKOUT
A
CONTROL STATE
TRIP
FAST
CURVE
HIGH
CURRENT
81
B
C
G
SEF
FAULT TYPE
Chassis Ground
FRONT-PANEL
OPERATOR CONTROLS
N/C
Note 1: Power with 120 Vac or
230 Vac (or 125 Vdc or 250 Vdc)
Figure 15
A09
A10
A11
A12
A13
A14
A15
A16
OUT105
OUT106
F Monitored Close
E Circuit Points
Z11
Z12
Z13
Z14
Z15
Z16
Z17
Z18
Z19
Z20
Z21
Z22
Z23
Z24
Z25
Z26
OUT104
CURRENT INPUTS
IN
106
OUT101—OUT106 Part of ordering options)
IN
105
OUT102
PROGRAMMABLE OUTPUT CONTACTS
IN
104
(IN102—IN106 Part of ordering options)
PROGRAMMABLE
OPTOISOLATED INPUTS
IN
103
A23
A24
A25
A26
A27
A28
A01
A02
A03
A04
A05
A06
A07
A08
OUT101
IN
102
ORDERING OPTION
A17
A18
A19
A20
A21
A22
SEL-351R Falcon Module Inputs, Outputs, and Communications Ports
SEL-351R Falcon Data Sheet
Schweitzer Engineering Laboratories, Inc.
15
Relay Mounting
Figure 16
SEL-351R Falcon Lift-To-Open Enclosure Dimensions and Mounting
Schweitzer Engineering Laboratories, Inc.
SEL-351R Falcon Data Sheet
16
Figure 17
SEL-351R Falcon Swing-Open Enclosure Dimensions and Mounting
SEL-351R Falcon Data Sheet
Schweitzer Engineering Laboratories, Inc.
17
Specifications
Note: Optoisolated inputs draw approximately 4 mA of current. All
Compliance
current ratings are at nominal input voltages.
ISO 9001:2008 Certified
Frequency and Rotation
General
AC Current Inputs (Channels I1, I2, I3)
1 A nominal:
3 A continuous, linear to 20 A
symmetrical; 100 A for 1 s
Burden:
0.13 VA @ 1 A
1.31 VA @ 3 A
Sensitive Earth Fault (SEF) Channel IN Current Input
0.05 A nominal:
1.5 A continuous, linear to 1.5 A
symmetrical; 20 A for 1 s
Burden:
0.0004 VA @ 0.05 A, 0.36 VA @ 1.5 A
System Frequency:
50 or 60 Hz
Phase Rotation:
ABC or ACB
Frequency Tracking
Range:
40.1–65 Hz
Note: Voltage connected to V1 required for frequency tracking.
Communications Ports
EIA-232:
2 Side
EIA-485 (optional):
1 Side, 2100 Vdc of isolation
Baud Rate:
300–38400 baud
Time-Code Input
AC Voltage Inputs
300 VL-N continuous, (connect any voltage up to 300 Vac). 600 Vac for
10 s.
Burden:
0.03 VA @ 67 V
0.06 VA @ 120 V
0.80 VA @ 300 V
Power Supply
Rated Range:
85–264 Vac; 100–350 Vdc
Frequency Range:
40.1–65 Hz
Burden:
<30 VA
12 V Radio Supply
11–14 Vdc, 6 W continuous, 13 W for 1 s
Output Contacts (Except Trip and Close)
Make:
30 A per IEEE C37.90-1989
Carry:
6 A continuous carry at 70°C
4 A continuous carry at 85°C
1 s Rating:
100 A
MOV Protection:
270 Vac / 360 Vdc; 40 J
Pickup Time:
< 5 ms
Recloser control accepts demodulated IRIG-B time-code input at Port
1 (optional) and Port 2. Do not connect the time-code input into both
Port 1 and Port 2 at the same time. Recloser control time is
synchronized to within ±5 ms of time-source input.
Operating Temperature
Relay Module:
–40° to +85°C (–40° to +185°F)
Batteries:
–40° to +60°C (–40° to +140°F)
Entire SEL-351R Falcon
Unit:
–40° to +50°C (–40° to +122°F)
Note: LCD contrast impaired for temperatures below – 20°C (–4° F).
The entire SEL-351R Falcon unit was operation tested up to +70°C
(+158°F). The 20°C (36°F) difference between the +50°C rating and
+70°C allows for temperature rise due to sunlight.
Weight
16.7 kg (37 lbs) including batteries
Battery Specifications
Normal Capacity:
8.0 amp-hours at +25°C (+77°F)
Run Time:
20 hours at +25°C (+77°F)
8 hours at –40°C (–40°F)
Estimated Life:
4 years at +25°C (+77°F)
8 months at +60°C (+140°F)
Recharge Time:
55 hours at +25°C (+77°F)
Breaking Capacity (10000 operations, L/R = 40 ms):
24 V
48 V
125 V
250 V
0.75 A
0.50 A
0.30 A
0.20 A
Type Tests
Environmental Test
Cyclic Capacity (2.5 cycle/second, L/R = 40 ms):
24 V
48 V
125 V
250 V
0.75 A
0.50 A
0.30 A
0.20 A
Note: Per IEC 60255-0-20:1974, using the simplified method of
assessment.
Cold:
IEC 60068-2-1:1990
[EN 60068-2-1:1993]
Test Ad: 16 hours at –40°C
Damp Heat Cyclic:
IEC 60068-2-30:1980
Test Db; 55° C, 12 + 12-hour cycles,
95% humidity
Dry Heat:
IEC 60068-2-2:1974
[EN 60068-2-2:1993]
Test Bd: Dry heat, 16 hours at +85°C
Trip and Close Outputs
3 A continuous @ –40° to 40° C, 1 min @ 85°C
Make and Carry:
5 A for 0.2 s @ 1 s intervals
Optoisolated Inputs
DC Range
24 Vdc:
Pickup 15.0–30 Vdc
AC Range
24 Vdc:
Dielectric Strength and Impulse Tests
Dielectric:
IEC 60255-5:1977
IEEE C37.90-1989
2500 Vac on analogs, contact inputs,
and contact outputs except Trip and
Close; 3100 Vdc on power supply for
10 s; 2200 Vdc on EIA-485
communications port
Pickup 12.8–30 Vdc
Schweitzer Engineering Laboratories, Inc.
SEL-351R Falcon Data Sheet
18
Electrostatic Discharge Test
ESD:
Steady-State Pickup Accuracy
IEC 60255-22-2:1996
(8 kV contact discharge all points except
serial ports, 15 kV air discharge to all
other points)
RFI and Interference Tests
1 MHz Burst Disturbance: IEC 60255-22-1:1988 Level 3
(2500 V common, 1000 V differential)
Fast Transient
Disturbance:
IEC 60255-22-4:1992
IEC 60801-4:1998 Level 4
(4000 V optional, 2000 V inputs)
Radiated EMI:
IEC 60255-22-3:1989 Level 3, 10 V/m
IEEE C37.90.2-1995, 35 V/m
Exception:
5.5.2(2): Performed with 200 frequency steps per octave.
5.5.3: Digital Equipment Modulation Test not performed.
5.5.4: Test signal off between frequency steps to simulate keying.
Surge Withstand:
IEEE C37.90.1-1989
3.0 kV oscillatory; 5.0 kV fast transient
Vibration and Shock Tests
1 A Nominal Channel:
±0.01 A, ±3%
SEF (0.05 A IN)
Channel:
±0.001 A, ±5%
Transient Overreach:
±5% of pickup
Time Delay:
0.00–16,000.00 cycles, 0.25–cycle steps
Timer Accuracy:
±0.25 cycle, ±0.1%
Time-Overcurrent Elements (51)
Current Pickup Range (A secondary)
1 A Nominal Channel:
0.05–3.2 A, 0.01 A steps
SEF (0.05 A IN)
Channel:
0.005–0.160 A, 0.001 A steps
Steady-State Pickup Accuracy
1 A Nominal Channel:
±0.01 A, ±3%
SEF (0.05 A IN)
Channel:
±0.001 A, ±5%
Transient Overreach:
±5% of pickup
Time Dials
Sinusoidal Vibration:
IEC 60255-21-1:1988 Class 1
Shock and Bump:
IEC 60255-21-2:1988 Class 1
US:
±0.5–15.0, 0.01 steps
IEC 60255-21-3:1993 Class 2
IEC:
0.05–1.00, 0.01 steps
Recloser Curves:
0.10–2.00, 0.01 steps
Seismic:
Miscellaneous
Enclosure Protection:
IEC 60529:1989, IP32/NEMA 3R
1 A Nominal Channel:
Recloser Type Tests
IEEE Std C37.60-2003 Clause 6.13.1, Oscillatory and fast transient
surge tests, performed in accordance with IEEE Std C37.90.1-2002
Surge Withstand Capability (SWC) for Relays and Relay Systems
Associated with Electric Power Apparatus.
IEEE Std C37.60-2003 Clause 6.13.2, Simulated surge arrester
operation test, performed with the following recloser.
G&W Electric Viper-S, Solid Dielectric
Model:
Voltage Rating:
Current Break Rating:
Continuous Current
Rating:
Curve Timing Accuracy
VIP398ER-12S
38 kV
12.5 kA
800 A
Processing Specifications
AC Voltage and Current Inputs
16 samples per power system cycle, 3 dB low-pass filter cut-off
frequency of 560 Hz.
Digital Filtering
One cycle cosine after low-pass analog filtering.
Net filtering (analog plus digital) rejects dc and all harmonics greater
than the fundamental.
Protection and Control Processing
Four times per power system cycle.
Battery Monitor
Processing once per second.
Relay Elements
Instantaneous/Definite-Time Overcurrent Elements (50)
SEF (0.05 A IN)
Channel:
±1.50 cycles, ±4%
between 2 and 30 multiples of pickup
±1.50 cycles, ±4%
between 2 and 30 multiples of pickup
Under- (27)/Overvoltage (59) Elements
Pickup Ranges (V secondary)
Various Elements:
0.00–300.00 V, 0.01 V steps
Phase-to-Phase
Elements:
0.00–520.00 V, 0.01 V steps
Steady-State Pickup
Accuracy:
±2 V, ±5%
Transient Overreach:
±5%
Synchronism-Check Elements (25)
Slip Frequency Pickup
Range:
0.005–0.500 Hz, 0.001 Hz steps
Slip Frequency Pickup
Accuracy:
±0.003 Hz
Phase Angle Range:
0–80°, 1° steps
Transient Accuracy:
±4°
Under-/Overfrequency Elements (81)
Frequency:
40.1–65.00 Hz, 0.01 Hz steps
Time Delays:
2.00–16,000.00 cycles, 0.25-cycle steps
Timer Accuracy:
±0.25 cycle, ±0.1%
Steady-State plus
Transient Overshoot:
±0.01 Hz
Undervoltage Frequency
Element Block Range:
25.00–300.00 V
Current Pickup Range (A secondary)
1 A Nominal Channel:
SEF (0.05 A IN)
Channel:
SEL-351R Falcon Data Sheet
0.05–20.00 A, 0.01 A steps
0.20–34.00 A, 0.01 A steps for
phase-to-phase elements
0.005–1.500 A, 0.001 A steps
Schweitzer Engineering Laboratories, Inc.
19
SELOGIC Control Equation Variable Timers
Pickup Ranges
0.00–999,999.00 cycles: 0.25-cycle steps (reclosing relay and
some programmable timers)
0.00–16,000.00 cycles:
0.25-cycle steps (some programmable and
other timers)
Pickup/Dropout Accuracy: ±0.25 cycle, ±0.1%
Metering Accuracy
Accuracies are specified at 20°C and at nominal system frequency
unless noted otherwise.
Voltages VA, VB, VC, VS,
3V0, V1, V2:
±0.2%, (67–300.0 V; wye connected)
Currents IA, IB, IC:
1 A nominal ±3 mA, ±0.1% (0.1–20 A)
Temperature Coefficient:
[(0.0002%)/(°C)2] • (__°C–20°C)2
(see example below)
Phase Angle Accuracy:
±1.0°
Currents I1, 3I0, 3I2:
1 A nominal ±0.01 A, ±3% (0.1–20.0 A)
IN (SEF):
0.05 A IN nominal ±1 mA
±5% (0.01–1.5 A)
Example metering accuracy calculation for currents IA, IB, and IC due
to preceding stated temperature coefficient:
For temperature of 40°C, the additional error for currents IA, IB,
and IC is: [(0.0002%)/(°C)2] • (40°C–20°C)2 = 0.08%
Schweitzer Engineering Laboratories, Inc.
SEL-351R Falcon Data Sheet
20
Notes
© 2009–2015 by Schweitzer Engineering Laboratories, Inc. All rights reserved.
All brand or product names appearing in this document are the trademark or registered
trademark of their respective holders. No SEL trademarks may be used without written
permission. SEL products appearing in this document may be covered by U.S. and Foreign
patents.
SCHWEITZER ENGINEERING LABORATORIES
2350 NE Hopkins Court • Pullman, WA 99163-5603 USA
Phone: +1.509.332.1890 • Fax: +1.509.332.7990
Internet: www.selinc.com • E-mail: info@selinc.com
Schweitzer Engineering Laboratories, Inc. reserves all rights and benefits afforded under
federal and international copyright and patent laws in its products, including without limitation software, firmware, and documentation.
The information in this document is provided for informational use only and is subject to
change without notice. Schweitzer Engineering Laboratories, Inc. has approved only the
English language document.
This product is covered by the standard SEL 10-year warranty. For warranty details, visit
www.selinc.com or contact your customer service representative.
SEL-351R Falcon Data Sheet
*PDS351R-02*
Date Code 20150126