BECKWITH ELECTRIC M-7679 User manual
Recloser Control M‑7679
Next generation Recloser
Control and Protection
System for Advanced
Distribution Grids
Protection and Control
• Over 30 Protection Elements for optimal protection
of Power Distribution Systems
• Compatible with Three-Phase Ganged (Std) and
Independent Phase Capable Reclosers (Optional)
• Four (std) or Six (optional) Low Energy Analog (LEA)
or VT voltage inputs
• Settings Wizard assists in creating file for most
common settings
• Recloser Status Monitoring tool displays real time
reclosing sequence and fault clearing time
• Comprehensive I/O Matrix provides visual
confirmation of enabled functions and selected
outputs improving security
Automation/Communications
• Front panel USB and SD Card ports for
local programming and data transfer
• One or two optional serial ports (TIA-232,
TIA-485 or Serial Fiber)
• Optional single or dual Ethernet ports
(copper or fiber) with simultaneous
multi-user and multi-protocol support
• Protocols supported include:
• MODBUS, DNP3.0
• Optional: IEC61850
• Comprehensive Cyber Security tools
to implement NERC CIP requirements,
including IPsec and Radius server
security
• IEEE 1686 Compliant
IPScom®– Uncomplicated Software for
Complex Power System Applications
• Integrated Metering, DFR and PQ
Visualization Tools
• Search and filtering tools for analysis of
SOE, DFR and PQ records
• IPSlogic Programmable Logic
Monitoring
• Power Quality Monitoring up to the 63rd
Harmonic including THD and TDD
• PQ Viewer (ITIC Curve)
• Sags, Swell and Sub-Synchronous Transient
Detection
• Advanced Data Logging and Load Profile
Recorder
• 3500 Event Sequence of Events (SOE) Recorder
• 100 DFR quality records of up to 480 cycles
with adjustable sampling rate up to 128 s/c
Flexibility
Two ways to retrofit and upgrade your existing
recloser control:
• Beckwith’s M-2400 series Adapter
Chassis for a direct retrofit of some
of the most popular controls in
their existing cabinet
• Beckwith’s M-2979 Cabinet for
replacement of the complete
recloser control – plug
compatible with multiple
vendors
Industry Leader Since 1969
Made in the USA
–2–
M‑7679 Recloser Control – Specification
M-7679 Recloser Control
4
I
1
, I
2
, I
3
,
I
g/SEF
25
79
51N
50N 67N
Residual (3 I
0
)
59
Vz1
27
Vz1
Residual
Directional
Overcurrent
Inverse Time
Residual Time
Overcurrent
Residual Inverse
Time Overcurrent
Reclose
Relay
Sync Check
Overvoltage Undervoltage
52
Recloser
3
Vz
1
1
46
60
FL
VT Fuse
Loss
Directional
Inverse Time
Overcurrent
• Phase
• Ground, SEF
• Neg. Seq.
P
G
Q
67
Breaker
Failure
50
BF
Directional
Power
32
Time
Overcurrent
• Phase
• Ground, SEF
Inverse Time
Overcurrent
• Phase with
Voltage Control/
Restraint
• Ground, SEF
Port 1
TIA-232
TIA-485
Serial Fiber
Port 2
+
Ethernet
Fiber Optic
or
Copper
Port 3
+
Ethernet
Fiber Optic
or
Copper
Front Port
Type B USB
SD Card
IRIG-B
Port 4
+
TIA-232
TIA-485
Serial Fiber
IPScom
®
Communications
Software
IPSlogic
Programmable Logic
Demand/Energy
Metering
Phantom Voltage
Or 3
P
G
50
51V
Source
Load
5
55 5
55
54
5
PQ Monitoring
Protocols:
MODBUS
DNP 3.0 SAv2
Smart P2P (Peer-to-Peer)p
IEC 61850 +
IEC 60870-5-104 +p
Hot-Line Tag/
Maintenance Mode
Trip/Close Coil Monitor
Settings Wizard
Trip and Target Counters
Synchrophasors p
(C37.118-2)
Digital 86 Lockout
Load Encroachment
Supervision
Self Diagnostics
IRIG-B Time
Synchronization (TTL)
Cold Load Pickup
Power/Battery Monitor
Reclosing Sequence
Monitor
Fault Locator
Digital Fault (Waveform)
Recording
CBEMA Counters
and Recording
Eight Setting
Profiles
Data Logging
Sequence of
Events Recording
Breaker
Wear Monitor
+Optional Feature
Feature available at future date via firmware update
XX
4
Number of
Elements
51
P
G
Negative
Sequence
Overcurrent
Definite Time
Inverse Time
DT
IT
V
Y
1
, V
Y
2
, V
Y
3
, N
Y
(3
V )
0
V
Z
1
, V
Z
2
, V
Z
3
, N
Z
O
U
81
Frequency
• Over
• Under
4
59
Overvoltage
• Phase
• Phase-to-Phase
• Residual
• Peak
P
PP
N
I
Negative
Sequence
Overvoltage
47
Undervoltage
• Phase
• Phase-to-Phase
P
PP
27
Frequency
Rate of
Change
81R
2
Web Browser Interface
Three-Phase Ganged
Independent Phase Capable
+
44
Figure 1 M-7679 Recloser Control
–3–
M‑7679 Recloser Control – Specification
▲Feature available at future date via firmware update / IPScom update
Standard Control Features
• Over 30 protection functions
• Horizontal or Vertical Mounting
• 50 Hz or 60 Hz Frequency
• High (90 to 315 Vac/Vdc) or Low (18 to 60
Vdc) Power Supply
• IPScom Communications Software
• IPSlogic Programmable Logic
• Synchrophasors (IEEE C37.118-2)▲
• Load Encroachment Supervision
• Phantom Voltage
• Digital 86 Lockout▲
• I/O Map
• Smart Fuse Coordination▲
• Custom Curve Designer
• Hot-Line Tag
• Fault Locator
• Eight Setting Profiles
• Compare Settings Tool
• Multi-Shot Auto Recloser, Three-Phase
Reclose Operation
• Sequence Coordination
• Cold Load Pickup
• Auto Restoration
• Reclosing Sequence Monitor & Recorder
• Recloser/Breaker Wear Monitor
• Power Quality Monitoring
• THD/TDD Monitoring, Alarming and
Protection
• ITIC Curve Violation Counters and
Recording
• Demand and Energy Metering
• Power Supply Monitor
• Trip/Close Coil Monitor
• Data Logging
• Sequence of Events Recording
• Trip and Target Counters
• Digital Fault (Waveform) Recording
• Fault Event Records
• Self-Diagnostics
• Three Phase Current Inputs plus one
Ground or Sensitive Earth Current Input
• Three Phase Voltage Inputs plus one Sync
Check Voltage Input
• IRIG-B Time Synchronization (TTL)
• Front Panel USB and SD Card ports
• PORT 1: Rear TIA-232 or TIA-485
• Protocols Included:
– MODBUS®
– DNP3.0 SAv2
– Smart P2P (Peer-To-Peer)▲
• Four User Programmable Digital Inputs
• Four User Programmable Digital Outputs
• Conformal coated circuit boards
• Configurable Front HMI LEDs and
Pushbuttons
• 12 Vdc Backup Power Input
• SMTP E-mail server▲
• Web Browser Interface
• IEEE 1686 Standard Compliant Cyber
Security
• IPsec (Internet Protocol Security)
• RADIUS Client Capability to manage local
and remote access to the control
• Wide Variety of Communications
Accessories
Optional Features
• Independent Phase Capable (Triple/
Single) Recloser Operation
• PORT 1 – Fiber Optic Available
• PORT 2 – Rear Ethernet Fiber Optic or
Copper
• PORT 3 – Rear Ethernet Fiber Optic or
Copper
• PORT 4 – TIA-232, TIA-485, or Fiber Optic
• Optional Protocols in addition to standard
MODBUS and DNP3.0 (requires at least
one Ethernet Port):
– Add IEC 61850
– Add IEC 60870-5-104/101▲
– Add Combination IEC 61850 and
IEC 60870-05-104/101▲
• Expanded I/O – Additional eight digital
Inputs and eight digital Outputs for a total
of 12 each
• Low Energy Analog (LEA) Inputs per
C37.92. Configurations available: 4 LEA,
3LEA + 1VT, or 6LEA.
–4–
M‑7679 Recloser Control – Specification
PORT 1 PORT 4
PORT 2 PORT 3
ETHERNET TIA
IΦ=1A, Ig= 50 mA,Vy=120~,Vz=120~
BC
1 2 3 4 5 6 7 9 10 11 12 13 14 168 15
1 2 3
I
g
Vy
1
Vy
2
Vy
3
Ny Vz
1
Vz
2
Vz
3
Nz
III
BECKWITH ELECTRIC CO. INC. LARGO, FL 727-544-2326 www.beckwithelectric.com
M-7679-XXXXXXXXXXXXXXXX
FW: D-XXXX V00.00.00 SN:XXXXXX
P/S=18−60 , 60 Hz, DIG. INPUTS=9−60
CAUTION:▲An orange TB3 receptacle indicates that a Low Voltage Power Supply is installed in the unit.
Figure 4 M-7679 External Connections
M‑7679 Mounting Options
M-2400 Series Adapter Chassis
The M-2400 Series Adapter Chassis and M-7679
Recloser Control provide a direct replacement for
the following recloser controls:
• M-2410 replaces the SEL
351R-2
• M-2411 replaces the SEL
351P-3 Panacea
• M-2413 replaces the
Cooper Form 6
• M-2418 replaces the
Cooper Form 5
Figure 2 M-2410 Adapter Chassis
Please refer to the M-2410/2411/2413/M-2418
Specification sheets for additional information and
ordering options.
M-2979 Recloser Control Cabinet
Figure 3 Recloser Control Cabinet
Please see the M-2979 Recloser Control Cabinet
Specifications section beginning on page 39.
–5–
M‑7679 Recloser Control – Specification
Sync Check
Reference Phase A/B/C _ _
Undervoltage Permission
Dead Line/Dead Bus Yes/No _ _
Dead Line/Live Bus Yes/No _ _
Live Line/Dead Bus Yes/No _ _
Live Line Minimum Voltage 0.0 to 200.0 V 0.1 V ± 0.2 V or ± 0.5%
Live Bus Minimum Voltage 0.0 to 200.0 V 0.1 V ± 0.2 V or ± 0.5%
Sync Check Permission
Max/Minimum Time Delay 0.01 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Minimum Voltage 10.0 to 300.0 V 0.01 V ± 0.2 V or ± 0.5%
Maximum Voltage 10.0 to 300.0 V 0.01 V ± 0.2 V or ± 0.5%
Angle Difference 0.00° to 90.00° 0.01° ± 0.3°
Magnitude Difference 0.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Frequency Difference 0.00 to 5.00 Hz 0.01 Hz ± 0.02 Hz or ± 2%
Undervoltage
Phase Undervoltage (#1 to #4 Steps)
Pickup 10.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Auto Restoration Enable/Disable
Phase-to-Phase Undervoltage
Pickup 10.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Vz1 Undervoltage
Pickup 10.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Bus Side Voltage Supervision
Bus Side Voltage Supervision
Minimum Closing Voltage 0.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Supervision Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Directional Power (#1 to #4 Steps)
Pickup –3.00 to +3.00 PU 0.01 PU ± 0.02 PU or ± 6%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Power Real/Reactive
Each directional power element can be set as overpower or underpower.
The per unit pickup is based on the nominal secondary VT voltage and CT current settings.
25
27
27
PP
27
Vz1
27B
32
PROTECTIVE FUNCTIONS
Device Setpoint
Number Function Ranges Increment Accuracy†
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–6–
M‑7679 Recloser Control – Specification
Negative Sequence Overcurrent (#1 to #5 Steps)
Definite Time
Pickup
1 A CT 0.02 to 20.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 100.00 A 0.01 A ± 0.1 A or ± 3%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Inverse Time
Pickup
1 A CT 0.02 to 3.20 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 16.00 A 0.01 A ± 0.1 A or ± 3%
Electromechanical Reset Delay Yes/No
Reset Coefficient 0.001 to 30.000 s 0.001 s ± 0.01 s* or ± 1%
TCC Modifiers
Time Adder 0.00 to 30.00 s 0.01 s ± 0.01 s* or ± 1%
Minimum Response
Time Adder 0.00 to 1.00 s 0.01 s ± 0.01 s* or ± 1%
IEC Curves Family Inverse, Very Inverse
(IEC 60255-151) Extremely Inverse
Time Multiplier 0.05 to 1.00 0.01 ± 2 cycles or ± 5%
IEEE Curves Moderately Inverse
(C37.112) Very Inverse
Extremely Inverse
Time Multiplier 0.10 to 25.00 0.01 ± 2 cycles or ± 5%
US Curves Moderately Inverse
Standard Inverse
Very Inverse
Extremely Inverse
Short Time Inverse
Time Multiplier 0.05 to 15.00 0.01 ± 2 cycles or ± 5%
Traditional Recloser 101; 102; 103; 104; 105; 106; 107; 111; 112; 113; 114; 115; 116; 117;
Curves 118; 119; 120; 121; 122; 131; 132; 133; 134; 135; 136; 137; 138; 139;
140; 141; 142; 151; 152; 161; 162; 163; 164; 165; 200; 201; 202
Time Multiplier 0.10 to 2.00 0.01 ± 2 cycles or ± 5%
Definite Time
Time Multiplier 0.10 to 100.00 0.01 ± 2 cycles or ± 5%
46
DT
46
IT
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–7–
M‑7679 Recloser Control – Specification
Negative Sequence Overvoltage
Pickup 0.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Breaker Failure
Pickup
Phase Current
1 A CT 0.02 to 2.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 10.00 A 0.01 A ± 0.1 A or ± 3%
Residual/ Ground (Sensitive Ground) Current
1 A CT 0.02 to 2.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 10.00 A 0.01 A ± 0.1 A or ± 3%
10 mA CT 0.001 to 0.160 A 0.001 A TBD
50 mA CT 0.005 to 0.800 A 0.001 A TBD
200 mA CT 0.020 to 3.200 A 0.001 A TBD
Time Delay 0.01 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Retrip Delay 0.01 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
47
50
BF
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–8–
M‑7679 Recloser Control – Specification
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
Instantaneous/Definite Time Overcurrent (#1 to #5 Steps)
Phase Instantaneous/Definite Time Overcurrent
Pickup
1 A CT 0.02 to 20.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 100.00 A 0.01 A ± 0.1 A or ± 3%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
High Current Lockout (#1 to #5 Steps)
Phase Enable/Disable
Reference Current
1 A CT 0.10 to 100.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.50 to 500.00 A 0.01 A ± 0.1 A or ± 3%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Residual Instantaneous/Definite Time Overcurrent
Pickup
1 A CT 0.02 to 20.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 100.00 A 0.01 A ± 0.1 A or ± 3%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
High Current Lockout (#1 to #5 Steps) with "3I0" HCL Operating Current Reference
Residual/Ground Enable/Disable
Reference Current
1 A CT 0.03 to 100.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.15 to 500.00 A 0.01 A ± 0.02 A or ± 3%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Ground Instantaneous/Definite Time Overcurrent
Pickup
1 A Gnd CT 0.02 to 20.00 A 0.01 A ± 0.02 A or ± 3%
5 A Gnd CT 0.10 to 100.00 A 0.01 A ± 0.1 A or ± 3%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
High Current Lockout (#1 to #5 Steps) with "G" HCL Operating Current Reference
Residual/Ground Enable/Disable
Reference Current
1 A Gnd CT 0.03 to 100.00 A 0.01 A ± 0.02 A or ± 3%
5 A Gnd CT 0.15 to 500.00 A 0.01 A ± 0.1 A or ± 3%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
50P
50
HCL
50N
50
HCL
50G
50
HCL
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–9–
M‑7679 Recloser Control – Specification
Inverse Time Overcurrent (#1 to #5 Steps)
Phase Inverse Time Overcurrent with Voltage Control/Restraint
Pickup
1 A CT 0.02 to 3.20 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 16.00 A 0.01 A ± 0.1 A or ± 3%
Load Encroachment Logic Use/Do Not Use – –
Voltage Control or
Voltage Restraint 4.0 to 150.0 % 0.1 %
Residual Inverse Time Overcurrent
Pickup
1 A CT 0.02 to 3.20 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.10 to 16.00 A 0.01 A ± 0.1 A or ± 3%
Ground Inverse Time Overcurrent
Pickup
1 A Gnd CT 0.02 to 3.20 A 0.01 A ± 0.02 A or ± 3%
5 A Gnd CT 0.10 to 16.00 A 0.01 A ± 0.1 A or ± 3%
Electromechanical Reset Delay Yes/No
Reset Coefficient 0.001 to 30.000 s 0.001 s ± 0.01 s* or ± 1%
TCC Modifiers
Time Adder 0.00 to 30.00 s 0.01 s ± 0.01 s* or ± 1%
Minimum Response
Time Adder 0.00 to 1.00 s 0.01 s ± 0.01 s* or ± 1%
IEC Curves Family Inverse, Very Inverse
(IEC 60255-151) Extremely Inverse
Time Multiplier 0.05 to 1.00 0.01 ± 2 cycles or ± 5%
IEEE Curves Moderately Inverse
(C37.112) Very Inverse
Extremely Inverse
Time Multiplier 0.10 to 25.00 0.01 ± 2 cycles or ± 5%
US Curves Moderately Inverse
Standard Inverse
Very Inverse
Extremely Inverse
Short Time Inverse
Time Multiplier 0.05 to 15.00 0.01 ± 2 cycles or ± 5%
Traditional Recloser 101; 102; 103; 104; 105; 106; 107; 111; 112; 113; 114; 115; 116; 117;
Curves 118; 119; 120; 121; 122; 131; 132; 133; 134; 135; 136; 137; 138; 139;
140; 141; 142; 151; 152; 161; 162; 163; 164; 165; 200; 201; 202
Time Multiplier 0.10 to 2.00 0.01 ± 2 cycles or ± 5%
Definite Time
Time Multiplier 0.10 to 100.00 0.01 ± 2 cycles or ± 5%
51P
51N
51G
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–10–
M‑7679 Recloser Control – Specification
Overvoltage
Phase Overvoltage (#1 to #4 Steps)
Pickup 10.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Auto Restoration Enable/Disable
Peak Overvoltage
Pickup 100 to 150 % 1% ± 3 %
Definite Time 0.01 to 140.00 s 0.01 s ± 0.05 s*
Residual Overvoltage
Pickup 10.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Phase-to-Phase Overvoltage
Pickup 10.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Vz1 Overvoltage
Pickup 10.00 to 300.00 V 0.01 V ± 0.2 V or ± 0.5%
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
VT Fuse‑Loss Detection
A VT fuse-loss condition is detected by using the positive and negative sequence components
of the voltages and currents.
Time Delay 0.03 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Three Phase VT Enable/Disable
Fuse Loss Detection
59
59I
59N
59
PP
59
Vz1
60
FL
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–11–
M‑7679 Recloser Control – Specification
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
Directional Overcurrent (#1 to #5 Steps)
Phase Directional Overcurrent
Operating Current Phase Current
Phase Polarization Voltage V1
Residual Directional Overcurrent
Operating Current 3IO
Phase Polarization Voltage Vz1, V1, V2, VO
Ground Directional Overcurrent
Operating Current Ig
Phase Polarization Voltage Vz1, V1, V2, VO
Negative Sequence Directional Overcurrent
Operating Current Negative Sequence Current
Phase Polarization Voltage V2
Enabled Direction No-Direction/Directional
Minimum Polarization Voltage
(% of nominal voltage) 2.0 to 10.0 % 0.1% ± 3%
Action if below Trip/Block Trip
Maximum Sensitivity Angle 1 0° to 359° 1° ± 1°
Maximum Sensitivity Angle 2 5° to 90° 1° ± 1°
Time Delay Definite/Inverse – –
Definite Time:
Pickup
1 A CT/Gnd CT 0.05 to 20.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT/Gnd CT 0.25 to 100.00 A 0.01 A ± 0.1 A or ± 3%
Delay 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
NOTE:QFunction 67 Inverse Time Delay Specifications continued on next page.
67P
67N
67G
67Q
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–12–
M‑7679 Recloser Control – Specification
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
Directional Instantaneous/Definite Time Overcurrent (Cont'd.)
Inverse Time:
Pickup
1 A CT/Gnd CT 0.02 to 3.20 A 0.01 A ± 0.02 A or ± 3%
5 A CT/Gnd CT 0.10 to 16.00 A 0.01 A ± 0.1 A or ± 3%
Electromechanical Reset Delay Yes/No
Reset Coefficient 0.001 to 30.000 s 0.001 s ± 0.01 s* or ± 1%
TCC Modifiers
Time Adder 0.00 to 30.00 s 0.01 s ± 0.01 s* or ± 1%
Minimum Response
Time Adder 0.00 to 1.00 s 0.01 s ± 0.01 s* or ± 1%
IEC Curves Family Inverse, Very Inverse
(IEC 60255-151) Extremely Inverse
Time Multiplier 0.05 to 1.00 0.01 ± 2 cycles or ± 5%
IEEE Curves Moderately Inverse
(C37.112) Very Inverse
Extremely Inverse
Time Multiplier 0.10 to 25.00 0.01 ± 2 cycles or ± 5%
US Curves Moderately Inverse
Standard Inverse
Very Inverse
Extremely Inverse
Short Time Inverse
Time Multiplier 0.05 to 15.00 0.01 ± 2 cycles or ± 5%
Traditional Recloser 101; 102; 103; 104; 105; 106; 107; 111; 112; 113; 114; 115; 116; 117;
Curves 118; 119; 120; 121; 122; 131; 132; 133; 134; 135; 136; 137; 138; 139;
140; 141; 142; 151; 152; 161; 162; 163; 164; 165; 200; 201; 202
Time Multiplier 0.10 to 2.00 0.01 ± 2 cycles or ± 5%
Definite Time
Time Multiplier 0.10 to 100.00 0.01 ± 2 cycles or ± 5%
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–13–
M‑7679 Recloser Control – Specification
Reclose Relay
Three-Phase Ganged or Optional Independent Phase Operation:
Ground Precedence Yes/No
Sequence Coordination
Active For Trips None/1/2/3 – –
Maximum Number
of Phase Trips 1/2/3/4/5 1 –
Maximum Number
of Ground/Residual Trips 1/2/3/4/5 1 –
Reset Time after Auto Reclose 1 to 1800 s 1 s ± 0.01 s* or ± 1%
Reset Time from Lockout 0 to 1800 s 1 s ± 0.01 s* or ± 1%
Reclose #1, #2, #3, #4
Time Delay for Phase Fault 0.01 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Time Delay for Ground Fault 0.01 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Optional Independent Phase Operation (1 Phase Trip-1 Phase Lockout Mode):
Synchronized Phase Sequence Yes/No
Deactivate G/N Functions Yes/No
Trip All Phases for Multi-Phase
Faults Yes/No
79 Trip Reclose Sequence
Trip #1, #2, #3, #4, #5
Function Element 50P, 50N, 50G/GS, 46DT, – –
1, 2, 3, 4, 5 51P, 51N, 51G/GS, 46 IT,
67P, 67N, 67G/GS, 67Q
79 Drive to Lockout
Trip Sequence 50P HCL, 50G/GS or 50N HCL – –
1, 2, 3, 4, 5
Protective Function 27, 32, 81U/O – –
Elements 1, 2, 3, 4
Supervision
Blocking Functions 27 BSVS, 27Vz1, 25 Sync – –
Supervision Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
79
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–14–
M‑7679 Recloser Control – Specification
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
Frequency (#1 to #4 Steps)
Pickup 40.00 to 65.00 Hz 0.01 Hz ± 0.02 Hz
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Hysteresis 0.0 to 1.0 Hz 0.1 Hz
Undervoltage Block Enable/Disable
Minimum Voltage 1.00 to 180.00 V 0.01 V
Minimum Load Enable/Disable
1 A CT 0.00 to 40.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.00 to 200.00 A 0.01 A ± 0.1 A or ± 3%
The pickup accuracy applies at a range of 57 to 63 Hz. Beyond this range the accuracy is ±0.1 Hz.
Auto Restoration Enable/Disable
Rate of Change of Frequency (#1 to #2 Steps)
Pickup 0.20 to 5.00 Hz/s 0.01 Hz/s ± 0.02 Hz/s
Definite Time 0.00 to 2.00 s 0.01 s ± 0.01 s* or ± 1%
Maximum Frequency 40.00 to 70.00 Hz 0.01 Hz
Minimum Current
1 A CT 0.00 to 20.00 A 0.01 A ± 0.02 A or ± 3%
5 A CT 0.00 to 100.00 A 0.01 A ± 0.1 A or ± 3%
Minimum Voltage 0.00 to 300.00 V 0.01 V
Pickup Cycle Number 3 to 15 1
Breaker Monitor
Pickup 1 to 60000 kA** Cycles 1 kA** Cycles 1 kA** Cycles
Time Delay 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Breaker Open Arc
Current Delay 0 to 2000 ms 1 ms
Arc Current Cycle 0 to 20 Cycles 1 Cycle
Preset Accumulators 0 to 60000 kA** Cycles 1 kA** Cycle
Timing Selection Method** I1.5T, IT or I2T
(**Timing Selection Method determines unit: kA, kA1.5 or kA2)
The Breaker Monitor feature calculates an estimate of the per-phase wear on the breaker contacts by measuring and
integrating the current through the breaker contacts as an arc.
The per-phase values are added to an accumulated total for each phase, and then compared to a user-programmed
threshold value. When the threshold is exceeded in any phase, the relay can set a programmable output contact.
The accumulated value for each phase can be displayed.
The Breaker Monitoring feature requires an initiating contact to begin accumulation, and the accumulation begins
after the set time delay.
81
81R
BM
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–15–
M‑7679 Recloser Control – Specification
PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
Trip/Close Circuit Monitoring
Time Delay 0.01 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Time Delay 0.01 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Trip Coil and Close Coil input voltages are limited to the specifications in Table 5.
Total Harmonic Distortion / Total Demand Distortion
Operating Quantity Current/Voltage
Limit 3.0 to 10.0 % 0.1% ± 2%
Time Delay 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Operating Quantity Current
Limit 3.0 to 10.0 % 0.1% ± 2%
Time Delay 0.00 to 600.00 s 0.01 s ± 0.05 s* or ± 1%
TCM
CCM
THD
TDD
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–16–
M‑7679 Recloser Control – Specification
Sensitive Ground Instantaneous/Definite Time Overcurrent (#1 to #5 Steps)
Sensitive Ground Pickup
10 mA Gnd CT 0.001 to 0.160 A 0.001 A (TBD)
50 mA Gnd CT 0.005 to 0.800 A 0.001 A 0.0015 A or ± 3%
200 mA Gnd CT 0.020 to 2.500 A 0.001 A (TBD)
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Replaces Standard 50G Ground
High Current Lockout (#1 to #5 Steps) with "G" HCL Operating Current Reference
Residual/Ground Enable/Disable
Reference Current
10 mA Gnd CT 0.001 to 0.160 A 0.001 A (TBD)
50 mA Gnd CT 0.005 to 0.800 A 0.001 A 0.0015 A or ± 3%
200 mA Gnd CT 0.020 to 3.200 A 0.001 A (TBD)
Definite Time 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
50
GS
50
HCL
OPTIONAL PROTECTIVE FUNCTIONS
Device Setpoint
Number Function Ranges Increment Accuracy†
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–17–
M‑7679 Recloser Control – Specification
OPTIONAL PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
Sensitive Ground Inverse Time Overcurrent (#1 to #5 Steps)
Sensitive Ground Pickup
10 mA Gnd CT 0.001 to 0.160 A 0.001 A (TBD)
50 mA Gnd CT 0.005 to 0.800 A 0.001 A 0.0015 A or ± 3%
200 mA Gnd CT 0.020 to 2.500 A 0.001 A (TBD)
Electromechanical Reset Delay Yes/No
Reset Coefficient 0.001 to 30.000 s 0.001 s ± 0.01 s* or ± 1%
TCC Modifiers
Time Adder 0.00 to 30.00 s 0.01 s ± 0.01 s* or ± 1%
Minimum Response
Time Adder 0.00 to 1.00 s 0.01 s ± 0.01 s* or ± 1%
IEC Curves Family Inverse, Very Inverse
(IEC 60255-151) Extremely Inverse
Time Multiplier 0.05 to 1.00 0.01 ± 2 cycles or ± 5%
IEEE Curves Moderately Inverse
(C37.112) Very Inverse
Extremely Inverse
Time Multiplier 0.10 to 25.00 0.01 ± 2 cycles or ± 5%
US Curves Moderately Inverse
Standard Inverse
Very Inverse
Extremely Inverse
Short Time Inverse
Time Multiplier 0.05 to 15.00 0.01 ± 2 cycles or ± 5%
Traditional Recloser 101; 102; 103; 104; 105; 106; 107; 111; 112; 113; 114; 115; 116; 117;
Curves 118; 119; 120; 121; 122; 131; 132; 133; 134; 135; 136; 137; 138; 139;
140; 141; 142; 151; 152; 161; 162; 163; 164; 165; 200; 201; 202
Time Multiplier 0.10 to 2.00 0.01 ± 2 cycles or ± 5%
Definite Time
Time Multiplier 0.10 to 100.00 0.01 ± 2 cycles or ± 5%
Replaces Standard 51G Ground
51
GS
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–18–
M‑7679 Recloser Control – Specification
OPTIONAL PROTECTIVE FUNCTIONS (cont.)
Device Setpoint
Number Function Ranges Increment Accuracy†
Sensitive Ground Directional Overcurrent (#1 to #5 Steps)
Phase Polarization Voltage Vz1, V1, V2, VO– –
Enabled Direction No-Direction/Directional – –
Minimum Polarization Voltage
(% of nominal voltage) 2.0 to 10.0 % 0.1% ± 3%
Action if below Trip/Block Trip – –
Maximum Sensitivity Angle 1 0° to 359° 1° ± 4°
Maximum Sensitivity Angle 2 5° to 90° 1° ± 4°
Time Delay Definite/Inverse – –
Definite Time:
Pickup 10 mA Gnd CT 0.001 to 0.160 A 0.001 A (TBD)
Pickup 50 mA Gnd CT 0.005 to 0.800 A 0.001 A 0.0015 A or ± 3%
Pickup 200 mA Gnd CT 0.020 to 2.500 A 0.001 A (TBD)
Delay 0.00 to 600.00 s 0.01 s ± 0.01 s* or ± 1%
Inverse Time:
Electromechanical Reset Delay Yes/No
Reset Coefficient 0.001 to 30.000 s 0.001 s ± 0.01 s* or ± 1%
TCC Modifiers
Time Adder 0.00 to 30.00 s 0.01 s ± 0.01 s* or ± 1%
Minimum Response
Time Adder 0.00 to 1.00 s 0.01 s ± 0.01 s* or ± 1%
IEC Curves Family Inverse, Very Inverse
(IEC 60255-151) Extremely Inverse
Time Multiplier 0.05 to 1.00 0.01 ± 2 cycles or ± 5%
IEEE Curves Moderately Inverse
(C37.112) Very Inverse
Extremely Inverse
Time Multiplier 0.10 to 25.00 0.01 ± 2 cycles or ± 5%
US Curves Moderately Inverse
Standard Inverse
Very Inverse
Extremely Inverse
Short Time Inverse
Time Multiplier 0.05 to 15.00 0.01 ± 2 cycles or ± 5%
Traditional Recloser 101; 102; 103; 104; 105; 106; 107; 111; 112; 113; 114; 115; 116; 117;
Curves 118; 119; 120; 121; 122; 131; 132; 133; 134; 135; 136; 137; 138; 139;
140; 141; 142; 151; 152; 161; 162; 163; 164; 165; 200; 201; 202
Time Multiplier 0.10 to 2.00 0.01 ± 2 cycles or ± 5%
Definite Time
Time Multiplier 0.10 to 100.00 0.01 ± 2 cycles or ± 5%
Replaces Standard 67G Function
67
GS
†Select the greater of these accuracy values. For voltage accuracy specified, the range is (20 – 180 V).
*An additional measurement time of 1 cycle needs to be added to the measured time delay.
–19–
M‑7679 Recloser Control – Specification
Introduction
The M-7679 is a digital, Smart Grid ready, advanced recloser control and protection system that is compatible
with most manufacturer’s switchgear and suitable for new installations or as a direct, easy-to-install,
replacement for older recloser controls. It offers a comprehensive protection package with over 30 individual
protection functions and up to eight setting groups for either Three-Phase Ganged or Independent Phase
Capable reclosers. The M-7679 features a high accuracy metering system with advanced recording and
reporting functions as well as continuous data sampling at 128 samples per cycle.
By configuring various combinations of the slow-, fast-, and time-delay curve elements, the M-7679 Recloser
Control can allow as many as five Phase-to-Phase or Phase-to-Ground trips and four total reclosing
operations. If required, individual phase or ground reclose intervals are user-settable with time-delays of up
to 600 seconds. The settings for the different functions can be accomplished by using the IPScom S-7600
Communications Software or the front panel pushbuttons. For convenience and security, the M-7679 Recloser
Control offers an SD card reader. Programming can be done in the office and settings can be loaded using
an SD card thus minimizing the time a user needs to spend in front of the control.
Overcurrent Protection
Up to five cumulative fast- and delay-curve operations provide phase and ground overcurrent protection.
With a recloser CT ratio of 1000:1, for example, the phase overcurrent protection can have primary currents
set as sensitive as 20 A for phase overcurrent and 5 A for ground overcurrent protection.
The M-7679 offers over 50 different time curves plus four user programmable curves to facilitate coordination
with other elements in the network. The phase or ground fast- and delay-curves can be set either with the
user-designed curves or with the curve selection choices listed in Table 1.
Use traditional Recloser Control curve modifiers to alter fast- and delay-curves (including US or IEC curves):
• Constant Time Adder – adds time to curve
• Vertical Multiplier (time dial) – shifts entire curve up or down in time
• Minimum Response Time – delays curve tripping for minimum time
• High Current Lockout – high set lockout maximum
• High Current Trip – closes on bolted fault
Custom Overcurrent Protection
IPSlogic includes algorithms that allow user programmable customization of the overcurrent protection.
The M-7679 Recloser Control supports the following curve selections:
Curve Category Curve Selection
IEC Curves (IEC 60255-151) Inverse, Very Inverse, Extremely Inverse
IEEE Curves (IEEE C37.112) Moderately Inverse, Very Inverse, Extremely Inverse
Traditional Recloser Curves
QNOTE: (Newer curves are shown
with the older curve designations in
parentheses)
101 (A); 102 (1); 103 (17); 104 (N); 105 (R); 106 (4); 107 (L); 111 (8*);
112 (15); 113 (8); 114 (5); 115 (P); 116 (D); 117 (B); 118 (M); 119 (14);
120 (Y); 121 (G); 122 (H); 131 (9); 132 (E); 133 (C); 134 (Z); 135 (2); 136 (6);
137 (V); 138 (W); 139 (16); 140 (3); 141 (11); 142 (13); 151 (18); 152 (7);
161 (T); 162 (KP); 163 (F); 164 (J); 165 (KG); 200; 201; 202
US Curves Moderately Inverse, Standard Inverse, Very Inverse,
Extremely Inverse, Short Time Inverse
Definite Time Definite Time
User-Designed Programmable
Curves Four Programmable Curves
Table 1 M-7679 Curve Selection
–20–
M‑7679 Recloser Control – Specification
Reclosing Operation
When there is any breaker open operation due to a fault, the relay will close the breaker automatically without
user intervention.The Reclosing Operation is achieved using the 79 function in conjunction with overcurrent
functions (i.e. 50P, 50G/50GS, 50N, 46DT, 51P, 51G/51GS, 51N, 46IT, 67P, 67N, 67G/GS, 67Q).
The Reclosing Sequence is an extension of the single Reclosing Operation. In this instance, when a breaker
opens and closes automatically, it will continue until a specified count is reached. Any overcurrent fault will
cause a trip after the trip time expires, at which time the 79 function will start the Reclose Interval. Both the
trip time and Reclose Interval are user settable.
At the end of the Reclose Interval the control will automatically send a close command to the breaker. This
process will continue until the maximum number of trips is reached or until the fault clears, whichever occurs
first. Once the maximum number of trips is reached, the control will automatically be placed in Lockout
and prevent further operation until the unit is reset. The maximum number of trips is user settable. See the
Instruction Book Setpoints Chapter for a detailed explanation of the Reclosing function.
Power Quality Monitoring
Power Quality (PQ) events: sags, swells, voltage and current unbalances; real-time harmonic analysis of
current and voltage for each phase, THD, phase voltage loss and variations, and ITIC excursion detection.
Monitoring/Metering
Real-Time Metering – the following measured and calculated values are available in real-time:
• Instantaneous values of the current for three phases, ground or sensitive ground
• Line and phase voltages
• DC battery voltage
• Active, reactive, apparent single- and three-phase power, including directional*
• Active energy received and delivered
• Demand metering on per-phase basis
• Reactive energy in quadrants I and III
• Single-phase and three-phase power factor*
• Frequency and phase sequence
• Sequence current and voltage magnitudes
*When the VT Configuration is set to any Delta Connection, only three phase power metering is
displayed in the Primary and Secondary Metering screens. Individual phase power metering is
grayed out, and the value displayed is "0".
Table of contents
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