007d schneider electric reclosers loop automation classic intelligent 1 . 1.pptx
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Automated Overhead
Schneider ElectricReclosers & Sectionalisers
Loop Automation
Classic & Intelligent
2014
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3
REVIEW
Reclosing & Sectionalising
Index
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4
Definition
Reclosing used to quickly
restore power and limit outages
for transient(self-clearing) faults
Sectionalising
used toisolate sections of the network
for permanentfaults
Up to 70% of faults
are transient
Index
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5
Comparison
Recloser Sectionaliser
Protection Detection
Multiple trips Single Trip
Fault Breaker NOT Fault BreakerTransient Fault Permanent Fault
ADVC Controller / RTU
Measure Current & VoltageProgrammable Relay
Index
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6
N-Series ACR U-Series ACR
W-Series ACR RL-Series LBS
Switchgear Range
Range 15kV to 38kV
SF6insulation
Integrated CT/CVT
Vacuum Interrupters
316 Stainless Steel
Range 15kV to 27kV
Solid Dielectric
Integrated CT/CVT
Vacuum Interrupters
316 Stainless Steel
24kV Single Phase
Solid DielectricIntegrated CT/CVT
Vacuum Interrupter
316 Stainless Steel
Range 15kV to 38kV
SF6insulationIntegrated CT/CVT
Puffer Interrupters
316 Stainless Steel
Common control cabinet for all switchgearADVC
10,000 mechanical operations
3-phase
3-phase
3-phase
single-phase
Index
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Controller Cubicles
304 stainless steel
Compact option
1 Accessory Tray2-point locking
316 stainless steel
2 Accessory Trays
Optional 12Ah batteries
3-point locking
Cubicle height 960mm
Cubicle width 450mmCubicle depth 302mm
Cubicle height 730mm
Cubicle width 420mm
Cubicle depth 302mm
Index
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Operator Interfaces
4-line display
Menu-driven4 Quick Action keys
Auto On / Off
20 status lamps
12 Quick Action keys
Fully configurable
Auto On / Off
Index
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Protection & Detection
Element
Protection
RECLOSER
Detection
SECTIONALISER
Phase Overcurrent YES YES
Earth Fault YES YES
Sensitive Earth Fault YES YES
Negative Phase Sequence YES YESInrush Restraint YES YES
Cold Load Pickup YES YES
High Current Lockout YES X
Under/Over Voltage YES X
Loss of Phase YES X
Under/Over Frequency YES X
Index
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DNP3balanced (both master and slave can initiate communications)
IEC 60870-5-101/4
can operate as balanced or unbalancedMODBUSunbalanced (only master can initiate communications)
MITS unbalanced
Communications & SCADA
PortLabel PortType Comment
RS232 Port A/B RS-232 No handshaking support
RS232 Port C/D RS-232 Handshaking supported
10Base-T Ethernet Simultaneous SCADA & WSOS5
V23 V23 FSK UHF radio communications
RS485 RS485 Long distance or multi-drop
USB USB Local WSOS5 only
Index
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Wave 1- Classic Loop Automation -
Quick Win Solution
Reliable (No Comms)
Easy to test and Install
Embedded in the reclosers
offer at no extra cost
Customers on the healthy
circuit can see somedisruption
Relies on grading multiple
reclosers which may not
always be achievable
>Simple logic scheme basedsolely on loss of voltage
Wave 2 (2013)- Intelligent Loop Automation -
Quick Win Solution
Reliable (single comms)
Easy to test and InstallEmbedded in the reclosers
offer at no extra cost
>Same Logic + Singledownstream message between
devices to open the down
stream device to prevent
closing on to fault (using
Modbus TCP/IP)
+ Sectionaliser
+ P2P communication
Quick Win Solution
Further intelligence
Easy to test and InstallEmbedded in the reclosers
offer at no extra cost
>Enhanced logic calculatingreceiving circuit load to
prevent overloading of
alternate source
Wave 3 (Q2 2014)- Intelligent Loop Automation -
+ Overload Control
>Enhanced logic supportingconnection to multiple ties
Wave 4 (Q4 2014)- Intelligent Loop Automation -
+ Multiple Tie
More complex loops (3
sources2 ties)
Reliable (low communications
requirements)
Easy to test and install
Embedded in the reclosers
offer at no extra cost
Q2 2014
Loop Automation4 types
2013
INTELLIGENT+OVERLOAD 3 INTELLIGENT+MULTI-TIE 4INTELLIGENT 2CLASSIC 1
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1 Yellow
2 Blue
HV / MVSubstation
5 Pink
3 Green
6 Aqua
NormalOpen Point4 Red
RR
R
RRCB
FAULT
1 Y
2 B
3 G
4 R
5 P
6 A
TTL
1 Y
1
2 B
2
3 G
2
4 R
3
5 P
3
6 A
4
Outages for each line segment
Customers on the main line are
protected from branch faults
Total Segment Outages
15
Typical Feeder: reclosers on branches
Index
Outage total based on 1 permanent
fault for each feeder segment
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HV / MV
Substation
Normal
Open Point3 Green1 Yellow
2 Blue
5 Pink
6 Aqua
4 RedRemote ControlledOr Automated
CB RR
R
RR
FAULT
1 Y
2 B
3 G
4 R
5 P
6 A
TTL
1 Y
1
2 B
2
3 G
1
4 R
2
5 P
1
6 A
2
Outages for each line segment
Automation / SCADA allows
supply from alternate source
Total Segment Outages
9
Typical Feeder: automated reclosers
Index
Outage total based on 1 permanent
fault for each feeder segment
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CLASSIC LOOP AUTOMATIONNo communications requiredAvailable for Reclosers & Sectionalisers
Loop Automation CLASSIC 1Wave 1
Index
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Features & Benefits
Features Details MessagesAutomatic supply
from alternate
source
When active & configured,
unfaulted sections are quickly
re-energised
No communications
Benefits
1. No communications required
2. No operator intervention
3. Included in the offer at no cost
4. Fast restoration of unfaulted sections
5. SAIDI and SAIFI statistics improved
CLASSIC 1Wave 1
Index
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Elements & Rules
Element Type Position Status NormallyFeeder ACR Closest to substation Required Closed
Midpoint ACR Between Feeder & Tie Optional Closed
Tie ACR/LBS Between Feeder lines Required Open
Feeder
Midpoint
Tie
Rule Element Action Conditionswhen ...
A (1) Feeder Opens (Lockout) Supply is lost
B (2) Midpoint Changes Protection Group* Supply is lost
(2) Midpoint Changes to Single Shot Supply is lostC (3) Tie Closes Supply is lost on 1 side
(4) Midpoint Opens (Single Shot -Lockout) Fault Detected
Feeder
Midpoint
Tie
Midpoint
Midpoint
* From A to Bdirection changed
CLASSIC 1Wave 1
# Loop Auto turned off when
LA actions completed
#
#
#
Index
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Substation CBs
10km15km
10km
7.5km
Midpoint 4
Midpoint 3
2D
Feeder 2
2B
10km
2A
1A
Midpoint 27.5km
1D
1B
7.5km
1C
5km
B
2C
Classic Loop Automation with Timer-Controlled Tie
Fault between substation CB and Feeder device
Picks up, tripsfrom
protection & goes to lockout.
The feeder device tripsand goes to
lockout.
Midpoint 1
Loop Automation Activation Delay
timers start due to a loss of supply.
Midpoint devices change protection groupin anticipation
of the change in the direction of the power flow and go toSingle Shot(no auto-reclose) mode.
The tie device also changes protection group depending
on which side the power was lost (source or load), goes to
Single Shot (no auto-reclose) mode and closes .
B+SS
Feeder 1
Tie
Fault isolated
Power restored to unfaulted sections in less than 1 minute
No operator intervention
ClosedTripped
Switchgear
LiveDead
Line
B+SS
B
Classic CLASSIC 1Wave 1
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INTELLIGENT LOOP AUTOMATIONPeer to peer IP communicationsDownstream messaging TRIP / CLOSE / CLOSE BLOCK
Loop Automation INTELLIGENT 2Wave 2
Index
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Features & Benefits
New Feature Details MessagesPeer to peer
MODBUS over IP
communications
Tie can be Timer or
Message controlled
Each switch can
message the adjacent
downstream device or
the tie
FEED to MID = TRIP
MID to MID = TRIP
FEED TO TIE = CLOSE or
CLOSE BLOCK
MID TO TIE = CLOSE or
CLOSE BLOCK
Additional Benefits
1. Reduced grading requirements2. Closing alternate supply onto fault
prevented, avoiding possible upstream trip
if elements are misgraded
INTELLIGENT 2Wave 2
Index
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Substation CBs
10km15km
10km
7.5km
Midpoint 4
Midpoint 3
2D
Feeder 2
2B
10km
2A
1A
Midpoint 27.5km
1D
1B
7.5km
Feeder 1
2C
1C
5km
B
Intelligent Loop Auto with Comms-Controlled Tie
Fault between Feeder and Midpoint devices
Loop Automation Activation Delay
timers start due to a loss of supply.
The downstream device changes protection
group in anticipation of the change in the
direction of the power flow, goes to SingleShot (no auto-reclose) mode and trips.
The tie device also changes protection group
depending on which side the power was lost (source or
load), goes to Single Shot (no auto-reclose) mode and
closes upon receiving a close request.
Picks up, executes trip/reclose sequence & goes
to lockout. It will then send a trip request to its
downstream device using Modbus P2P
communications.
Fault isolated
Power restored to unfaulted sections in less than 1 minute
No operator intervention
Alternate source prevented from Closing onto fault
ClosedTripped
Switchgear
LiveDead
Line
Modbus Trip Request
Other midpoint devices change protection group and
go to Single Shot (no auto-reclose) mode.
Tie
Modbus Close Request
Midpoint 1
B+SS
BB+SS
INTELLIGENT 2Wave 2Intelligent
Index
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INTELLIGENT LOOP AUTOMATIONPeer to peer IP communications
Downstream messaging TRIP / CLOSE / CLOSE BLOCK
Loop Automation INTELLIGENT+OVERLOAD 3Wave 3
Index
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Features & Benefits
NewFeature
Details Messages
Overload
Control
All elements regularly advise
phase currents to tietie will
only close after fault if the
unfaulted alternate source hassufficient overhead
Loop Auto OLC ON =
send settings to TIE
PING message =
3 phase currents to TIE
Additional Benefits
1. Tie will only close onto unfaulted network ifsufficient overhead exists to prevent
overload
INTELLIGENT 3Wave 3
Index
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OLC messaging INTELLIGENT 3Wave 3
Ping messages from all elements to TIE
Midpoint
Tie
Sources
Closed
Open
Switchgear State
Feeder
Feeder
>3 phase currents
Device settings> > TIE closes only when availableOVERHEAD exceeds faulted LOAD
During Loop Automation, TIE uses received data to
calculate LOAD & OVERHEAD
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INTELLIGENT LOOP AUTOMATIONPeer to peer IP communications
Downstream messaging TRIP / CLOSE / CLOSE BLOCKOverload control available
Loop Automation INTELLIGENT+MULTI-TIE 4Wave 4
Index
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Features & Benefits
New Feature Details MessagesMulti-tie support
Additional logic to support
interconnected networks:
up to 3 sources / 2 ties
TBA
Additional Benefits
1. More complex networks can be supported
Wave 4 INTELLIGENT+MULTI-TIE 4
Index
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Creation Configuration Monitoring Validation
WSOS5Loop Automation Tool
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