REB 670 Busbar Protection

Transcription

Gunnar Stranne
©
ABB Power Technologies AB, 2005
Santiago de Chile
Septiembre 5, 2006
2006-08-30 PTSX Gunnar Stranne
1
REB 670
Busbar Protection
Application Areas for REB 670
Differential, CBF & Non-Dir
OC Protection for:
Busbars
Meshed corners,
©
T-protection
2
REB 670*1.0 … Available Versions
3-Phase Version
Two measuring zone
CBF, OC, EnFP & AR
4 or 8 bays
1-Phase Version
Two measuring zones
©
CBF, OC, EnFP & AR
12 or 24 bays
One terminal per phase
Summation
3
REB 670*1.0 Variants
3Ph, 4 bays, 2 zone
12I + 3*IO Cards
12I/24I + 11*IO Cards
Used for small, fixed zones like
T protection, meshed corner,
ring bus etc.
Not Applicable
A20
Not Applicable
3Ph, 8 bays, 2 zone
©
1Ph, 12 bays, 2 zone
(three IEDs required)
1Ph, 24 bays, 2 zone
(three IEDs required)
4
Used for substation with up to
12 CT inputs. No zone
selection possible due to
limited No. of IO cards. No
extension possibilities!
Good for stations with fixed
zones (i.e. 1½ breaker). B20
Not Applicable
Used for small substations with
up to 8 CT inputs. Complete
zone selection & CBF
protection!
A31
12 CT inputs. Possible to use
zone selection & CBF. Possible
to extend to 24 CT inputs
B21
24 CT inputs. Possible to use
zone selection & CBF, but
possible application problems
due to binary IO limitations.
B31
Available I/O-modules ½ 19” case
IOM
(max 3st)
BOM
(max 3st)
½ of 19” Case
1 TRM 12I only!
up to 3 I/O modules
10+2 binary outputs
and 8 binary inputs
BIM
(max 3st)
©
24 binary outputs
(12*2contacts)
16 binary inputs
5
Available I/O-modules 1/1 19” case
IOM
(max 11st)
BOM
(max 4st)
Full of 19” Case
1 or 2 TRM 12I only!
up to 11 I/O modules
10+2 binary outputs
and 8 binary inputs
BIM
(max 11st)
©
24 binary outputs
(12*2contacts)
16 binary inputs
6
Three-Phase Terminal; 4/8 Bays- Double Zone
REB 670; 3Ph
2 Zones (A & B);
8 Bays
Application Areas:
Smaller Buses (up to 8 CTs per zone)
Single Busbar Stations (with Transfer Bus)
1½ Breaker Stations
Double Busbar Stations (with Transfer Bus)
Zone Interconnection included in the design
©
No switching in CT secondary circuits
7
REB 670*1.0 3-Ph; basic applications Diff & CBF
M/G
©
Auto-Transformer
8
Generator/Motor
Capacitor
Reactor
REB 670 3- Ph; BBP, BFP & EnFP for single buses
ZA
ZB
ZA
Single Bus with bus tie CB
up to 3/7 feeder bays on each side
Single Busbar
up to 4/8 feeder bays
ZA
ZA
ZB
ZB
©
H type station with bus-section CB
or sectionalizing disconnector
Alternative CT Location
9
T connections
REB 670 3- Ph, BBP, BFP, EnFP for 1½ CB stations
ZA
ZB
up to 4 diameters
ZA
.. .
©
ZB
up to 8 diameters
10
REB 670 3- Ph; BBP, BFP & EnFP for Double CB stations
ZA
.. .
ZB
Double Breaker Station
up to 8 feeders
©
11
REB 670 1- Ph; BBP, BFP & EnFP for double buses
ZA
.. .
ZB
Double Bus with bus-coupler CB
and up to 6/7 feeder bays
ZA
ZB
©
Transfer Bus
.. .
.. .
.. .
Transfer Bay
Isolator replica in REB 670*1.0
by CAP 531 Configuration
Double Busbars with bus coupler CB and Transfer Bus
12
Optional Measuring Point
Scheme Layout for Double Busbar; 2 Zones/7 feeders
700
ABB
EQUIPMENT INCLUDED in the PANEL:
©
1 pcs 3 phase, Busbar protection terminal REB 670*1.0
- two differential zones
- check zone
- eight CB failure relays
- eight OC feeder backup protection (EnFP)
- internal disconnector replica logic
- internal individual bay tripping logic
- disconnector status supervision
13
Single-Phase Terminal; 12/24 Bays- Double Zone
REB 670; Ph-L1
2 Zones (A & B);
24 Bays
REB 670; Ph-L2
2 Zones (A & B);
24 Bays
REB 670; Ph-L3
©
2 Zones (A & B);
24 Bays
14
Application Areas:
Bigger Buses (up to 12/24 bays per zone)
Single Busbar Stations (with Transfer Bus)
Double Busbar Stations (with Transfer Bus)
Load Transfer is included into the design
3 Terminals required for complete scheme
LDCM available to share binary IO
No switching in CT secondary circuits
REB 670 1- Ph; BBP, BFP & EnFP for single buses
ZA
.. .
ZA
Single Bus
©
ZA
.. .
.. .
15
.. .
Single Bus with bus-section disconnector
up to 12/24 feeder bays (i.e. 12+12; 16+8 etc.)
ZB
Single Bus with bus-section CB, up to
11/23 feeder bays (i.e. 12+11; 10+13 etc.)
.. .
ZB
ZA
.. .
.. .
ZB
Single Bus with bus-section CB
up to 11/23 feeder bays on each side
REB 670 1- Ph; BBP applications for 1½ CB stations
ZA
ZA
.. .
ZB
©
up to 6 / 12 diameters
16
.. .
ZB
up to 12 / 24 diameters
REB 670 1- Ph, Complete BBP, CBF & EnFP for 1½ CB Stations!
ZA
.. .
ZB
©
Bus Diff, CB Fail & EnFP
up to 4/8 diameters
17
REB 670 1- Ph; BBP, BFP & EnFP for Double CB stations
ZA
ZA
.. .
.. .
ZB
ZB
up to 6 / 12 feeders
up to 12 / 24 feeders
©
18
ZA
.. .
ZB
©
Double Bus with bus-coupler CB
19
REB 670 1- Ph; BBP, BFP & EnFP for double bus & transfer
ZA
ZB
Transfer Bus
ZA
ZB
©
Transfer Bus
.. .
.. .
.. .
Combined Bus-Coupler
& Transfer Bay
.. .
.. .
Bus-Coupler Bay
Transfer Bay
.. .
Double Busbars with Transfer Bus
20
Scheme Layout for Double Busbar; 2 Zones/22 feeders
700
ABB
EQUIPMENT INCLUDED in the PANEL:
©
3 pcs 1 phase, Busbar protection terminal REB 670*1.0
- two differential zones
- check zone
- 24 CB failure relays
- 24 OC feeder backup protection (EnFP)
- internal disconnector replica logic
- internal individual bay tripping logic
- disconnector status supervision
21
Main 2
Main 1
.. .
Reserve 1
.. .
Reserve 2
Four Zone Double Bus with two bus-coupler CBs and two
bus-section CBs and up to 20/21 feeder bays on each station side
Main 1
.. .
©
Reserve 1
Main 2
.. .
Reserve 2
Four Zone Double Bus with two BC-CBs one BS-CB and one sectionalizing
disconnector with up to 18-20 feeder bays in the whole station
22
REB 670*1.0; 1-ph version Summation Principle
REB 670; 1 Ph
2 Zones (A & B);
24 Bays
©
+ N times
N≤ 8
23
Buses up to 24 bays per zone
Single Busbar
1½ Breaker Systems
Double Busbar
Same applications possible as for 1Ph solution
Software Driven Zone Selection
CBF ???
OCP (EnFP) ???
DR, ER, EL ???
Cost effective Solution
Features in REB 670*1.0
Fast differential protection (12ms)
Additional sensitive differential protection characteristic
Smart open CT detection
Check zone is available
Id and Iin level supervision
Advanced zone selection
Graphical configuration tool
Integrated zone interconnection (i.e. Load transfer)
Complete disconnector and/or CB position supervision & alarming
Proper CB failure for every CT input
©
4-stage backup overcurrent for every CT input
End fault protection by 4th overcurrent stage
Disturbance and event recorder
24
REB 670 Allocation of BBP Software Functionality
Zone Selection
Dynamic Software CT switching
(i.e. no switching in CT secondary
circuits neither interposing CTs
are required)
Easy adaptation to different
substation layouts such as: single
or double bus (with transfer bus),
one-and-half or double breaker,
etc.
Simple adaptation to buses with
only one set of CTs in the bussection or bus-coupler bays
Selective BBP & BFP tripping for
every bay
©
Merging of the two differential
zones when required (i.e. during
load transfer in double busbar
stations)
Disconnector and/or circuit
breaker status supervision
25
Differential Zones
High speed tripping for internal
faults. Typical operating time 12
ms
Complete stability for through
faults, with heavy CT saturation,
and a maximum remanence in the
CT core at auto-reclosing
Low CT requirement, only 2
milliseconds to saturation needed
for correct operation
Intelligent detection for open or
shorted CT secondary circuits and
settable blocking of differential
protection zone
Sensitive differential protection
stage for power systems with
limited earth-fault current
©
Toll => PCM 600 for Whole 670 Series
26
©
PCM 600 => CAP 531 + SMT + PST
PST
27
What is done Where for BBP in REB 670
CAP 531- Configuration
Determine Disconnector and
CB positions via a&b contact
Fix CT inputs to one of the
two zones
Dynamic CT switching
software logic based on
Disconnector and CB
positions
Set Disconnector/CB behavior
CBF & BBP Tripping Scheme
Set CBF pickup and time
delays
EnFP Scheme and Tripping
Intertripping Scheme
Connect CTs to Check Zone
Set Diff Characteristics
Set OC/EnFP and time delays
SMT
©
PST - Settings
Connect required number of bays to I/O modules included in REB 670
28
REB 670 BBP Software Structure / Function Blocks
Zone Selection
Primary Switchgear Objects
Status (i.e. disconnector and
breakers)
Bay
(Interface towards one
Primary Bay)
Differential Zones
Zone A
(Id>, OCT, Sensitive Id>)
Zone B
(Id>, OCT, Sensitive Id>)
Check Zone (Id>)
Zone Interconnection
(Merging of two zones when
required)
©
One Basic
Function in AFL,
Hidden
connections exist
29
Differential Protection in REB 670*1.0
Very fast, minimum operating time 10 ms
Extremely stable for external faults
Completely phase segregated measurement
Differential algorithm not dependent on the number of connected feeders
Very low CT requirements, only 2 ms before CT saturation
Any CT ratio difference can be accommodated
©
Id [Primary Amps]
Settings entered directly in primary amperes
I in
I=
d
Operate
region
Differential protection
operation characteristic
Diff Oper Level
Sensitive Oper Level
s=0.53
30
Iin [Primary Amps]
Sensitive Differential Protection in REB 670*1.0
©
Id [Primary Amps]
Used in low impedance earthed power system or in other
special applications
It has the following characteristics:
Freely settable characteristic with time delay possibility
Automatically blocked for heavy ph-to-ph faults
External release via binary signal (i.e. from open delta
voltage, transformer neutral point current, etc.)
I in
I=
d
Operate
region
Diff Oper Level
s=0.53
31
Sensitive
differential
protection
Iin [Primary Amps]
en04000260.vsd
Open CT detection for REB 670*1.0
Id [Primary Amps]
Slow and Fast Open CT detection (same as in RED 521*1.0)
Settable influence of slow and fast open CT logic:
Off (switched off)
Block (Block diff protection, same as in RED 521*1.0)
Supervise (Doesn't block, just increase minimum
differential operation level as shown below)
d
Operate
region
OCT Logic Supervision Level
©
I in
I=
Diff Oper Level
s=0.53
Sensitive
differential
protection
Iin [Primary Amps]
32
en04000260.vsd
Check Zone in REB 670*1.0
©
Id [Primary Amps]
Independent check zone available
Can be switched off (default setting)
Freely settable which CTs shall be connected to check zone
Provide stability in case of problem with disconnector
auxiliary contacts ( stuck contacts or wiring problems)
Operate
region
Oper Level
s=0.0-0.90 (settable)
Iout [Primary Amps]
33
Zone Supervision in REB 670*1.0
Two new types of Diff Zone supervision are available
Id> traditional supervision of differential current level
with settable time delay(i.e. can be used as alarm or for
automatic reset of OCT condition)
©
Iin> incoming current supervision, without time delay
(i.e. can be used to trigger DR for external faults)
34
Disconnector/CB supervision & alarming
For every disconnector/CB status is determined from the
status of aux contacts (i.e. a & b contacts)
Two schemes available
©
Position of a disconnector/CB can be forced to OPEN or
CLOSED by a parameter setting
35
User Friendliness in REB 670*1.0 (3-Ph & 1-Ph)
Easy to set, configure, install & use
Very easy to adapt to simple buses
Pre-configured for most typical substation layouts
©
BayConnections Matrix on built-in, front HMI with User
Settable Individual Bay Names
SwitchgearStatus Matrix on built-in, front HMI with
Settable Individual Primary Switchgear Object Names
Visible User Defined Bay Names when setting change is
performed from the built-in, front HMI or PST
Visible User Defined Switchgear Object Name when
setting change is performed from the built-in,
front HMI or PST
36
Available Configurations X01, X02 & X03
Just BBP for simple stations layouts (i.e. 1½ CB, Double Breaker,
Single Breaker, or for double busbar-single breaker stations where
Zone Selection is done by using just b contacts). Available for all
five versions A20, A31, B20, B21 & B31.
Direct replacement for RED 521*1.0
Just BBP for double busbar-single breaker stations where Zone
Selection is done by using a&b contacts from disconnectors and
breakers. Available for versions A31, B21 & B31
BBP with BFP, EnFP & OCP for double busbar-single breaker
stations where Zone Selection is done by using a&b contacts from
disconnectors and breakers. Available for versions A31, B21 & B31
©
For other station layouts or functionality CAP 531 configuration shall
be arranged by the end user.
Make available library of configurations for different station layouts?
37
Breaker Failure Protection (BFP)
Complete CB failure protection within REB 670*1.0 with:
1ph and/or 3ph starting
Re-trip (i.e. first time delay)
Backup trip / bus-strip (i.e. second time delay)
Short rest time of 15ms
Trips correctly only associated CBs via busbar disconnector
replica available inside busbar differential protection
©
Integrated station wide trip logic available from Zone Selection
38
Phase Overcurrent function (TOC)
Four, non-directional phase
overcurrent stages
IF
Each stage can be Definite- or
Inverse time delayed.
19 IEC/ANSI curves
3I>
4
Logarithmic inverse
Taylor made curve is available
Each stage can be separately
blocked with second harmonic
©
4th stage can be used for end fault
protection
39
End Fault Protection
CB=Clearing Boundary
CT=Measuring Boundary
Busbar
Protection
Feeder
Protection
©
Feeder
Protection
When feeder CB is
open, stop
measuring
boundary at the
open CB contacts
in order to avoid
over-trip and
activate fast OC
protection to trip
remote end only
40
Busbar
Protection
Over-Trip
Zone
Under-Trip
Zone
When feeder CB is
open, extend
measuring
boundary to the
open CB contacts
in order to avoid
under-trip
Autoreclosing Function (AR)
©
Only used in certain markets in order to try to
re-energize the bus after BBP trip
41
Disturbance and Event Recorder in REB 670*1.0
©
Up to 40 recording channels!
Sampling rate 20 samples per power system cycle
Disturbance recording of all 24 analogue input channels
Disturbance recording of all differential currents
Disturbance recording of all incoming currents
Up to 96 binary signals can be recorded as well
DR file is saved in the terminal in COMTRADE format
Last 30 recordings are stored in the terminal
Each recording up to 6s long
Internal even list with last 1000 binary events available in
the terminal
42
Communication
Front connection:
RJ45 Ethernet port
Protocol: TCP/IP (transparent
SPA)
Rear Communication
IEC61850
IEC103
SPA
©
LON
43
Communication
Capabilities
A Breakthrough for Substation Automation
One world
One technology
One standard
©
IEC 61850
44
Communication
Capabilities
Designed for IEC 61850
Remote control (NCC)
MicroSCADA Pro
Station
Gateway
©
Station bus
IEC61850-8-1
45
SMS & PCM
Via TCP/IP
WAN or modem
Utility LAN
TCP/IP
Protection
Protection
& Control
Protection
Control
Successful FAT for the first REB 670 delivery
2006-02-28 - Vantaa Energy Ltd utility from Finland is the first customer for REB 670
busbar protection. A successful FAT (factory acceptance test) was performed in Västerås
during February 21-22, 2006 and witnessed by the customer.
A large number of internal and external faults were
simulated on the advanced real-time simulator. All tests
succeeded to 100%. REB 670 proved its unique speed with
sub-cycle tripping times down to 11 ms.
The following tests were included:
©
•Switching of busbar zone
•Testing of load transfer
•Testing of by-pass of Bay Breaker with the transfer disconnector
•Testing of restraint stage operating level
•Testing of OCT operating level
•Testing of sensitive EF stage operating level
•Test of service values
•Test of protection tripping and alarm outputs
•Test of system alarms
•Verification of upload of disturbance recorder files
•Test of breaker failure relay
46
First Swedish Order for IED 670 includes REB 670
A press-release dated 2006-01-12 informed that Skellefteå Kraft Elnät had
ordered the new transmission line terminals IED 670. The first order in
Sweden for IED 670.
©
The order was for;
3- Line protection terminals REL 670
1- Busbar protection REB 670
47
©
Potencia y productividad
para un mundo mejor ®
48

REB 670 Busbar Protection

Transcription

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