MV Relais : SEPAM generalities
By Y. NICOLASJun-2012
Schneider Electric – BU Infrastructure - PEC
Schneider Electric 2- Division - Name – Date
Usual ANSI codes for current protection
50 – 51 : Phase overcurrent
50N-51N / 50G-51G : Earth fault / sensitive earth fault
49RMS : Thermal overload
67 : Directional phase overcurrent
67N : Directional earth fault
64REF : Restrictive earth fault
87T : transformer differential
87 M : Machine differential
87B : Busbar differential
87L : Line differential
(46 : Negative sequence / unbalance)
(37 : Phase undercurrent)
∑ 3 CT by SEPAM
With CSH200 on 3 phases
With CSH120 on neutral
Current & Voltage analog
Inputs are needed
The way for the polarity of CT is
important
Schneider Electric 3- Division - Name – Date
Usual ANSI codes for Voltage protection
27 : Undervoltage
(27D : Positive sequence undervoltage)
27R : Remanente undervoltage
59 : Overvoltage
59N : Neutral voltage displacement
(47 : Negative sequence overvoltage)
25 : Synchro-check
Normally
=
not latchedSolution to detect the first fault on IT earthing system
Usefull to be sure that no voltage on busbar even if some motor are not stop
Source 1 Source 2
25
- 25 = Module MCS025 for SEPAM (only on SEPAM 60 or 80)- Voltage Reference = 1 single Voltage or 1 composed voltage- VT healthy circuit is needed (to be sure when the busbar is « dead »
VT VT
FuseFuse
MCB MCB
Fuses are drawn-in
Fuses are not blown
MCB close
VT are healthy (=1) if fuses are drawn-in and fuses are not blown and MCB is closed
Schneider Electric 4- Division - Name – Date
Usual ANSI codes for transformer or motor protection
26 / 63 : Thermostat / buchholz (DMCR or DGPT2)
38 / 49T : Temperature monitoring
48/51LR : Excessive starting time / Loked rotor
66 : Starts per hour
Transformer protection
Motorprotection
8 sensors (PT100 or Ni100)
per module (MET-148) for SEPAM
Schneider Electric 5- Division - Name – Date
ANSI codes for frequency & Power protection
(81H : Overfrequency)
(81L : Underfrequency)
(81R : Rate of change of frequency)
32P : Directional active overpower
(32Q : Directional reactive overpower)
(37P : Directional active underpower)
Others ansi codes :
- 64G (100% stator)
– 79 (recloser)
– 24 (overfluxing)
– 67NC (for compensed neutral)…
Schneider Electric 6- Division - Name – Date
SEPAM Range
SEPAM series 20, 40, 60 & 80
SEPAM series 10
SEPAM series 100
Schneider Electric 7- Division - Name – Date
SEPAM series 100SEPAM 100 RT =
For transformer protection applications : DGPT2 or Buchholz + thermostat information.
For back-up protection : Phase overcurrent (50/51) & earth fault (50N/51N) :
SEPAM 100 LA =
SEPAM 100 LD = High impedance differential relay.It provides restricted earth fault, busbar and machine protection.
SEPAM 100 MI = High impedance differential relay.It provides restricted earth fault, busbar and machine protection.
Schneider Electric 8- Division - Name – Date
SEPAM series 10
Schneider Electric 9- Division - Name – Date
SEPAM series 20, 40, 60 & 80
Schneider Electric 10- Division - Name – Date
SEPAM series 20 & 40 (selection table 1/2)
Schneider Electric 11- Division - Name – Date
SEPAM series 20 & 40 (selection table 2/2)
Schneider Electric 12- Division - Name – Date
SEPAM series 60 (selection table 1/3)
Schneider Electric 13- Division - Name – Date
SEPAM series 60 (selection table 2/3)
Schneider Electric 14- Division - Name – Date
SEPAM series 60 (selection table 3/3)
Schneider Electric 15- Division - Name – Date
SEPAM series 80 (selection table 1/3)
Schneider Electric 16- Division - Name – Date
SEPAM series 80 (selection table 2/3)
Schneider Electric 17- Division - Name – Date
SEPAM series 80 (selection table 3/3)
Schneider Electric 18- Division - Name – Date
Series80 & 60
Remoteadvanced UMI
Integratedadvanced UMI
Mimic-basedUMI
Series20 & 40
Basic UMI
Different SEPAM UMIs
Schneider Electric 19- Division - Name – Date
Optional modules Sepam series 20 & 40ACE949-2ACE959ACE937ACE969TPACE969FOcommunicationmodules
MES148-2temperature sensor modules
MSA141analogoutput module
MES114optional input/output modules
DSM303remote UMI
Schneider Electric 20- Division - Name – Date
Optional modules Sepam series 60 & 80ACE949-2ACE959ACE937ACE969TPACE969FOcommunicationmodules
MES148-2temperature sensor modules
MCS025synchro-checkmodule
MSA141analogoutputmodule
MES120 optional input/output modules
DSM303remote UMI
Schneider Electric 21- Division - Name – Date
I/O modules
FOR SEPAM Series 60 & 80 : MES120, MES120G, MES120H14 inputs / 6 outputs modulesUp to 3 modules for SEPAM 80Up to 2 modules for SEPAM 60
FOR SEPAM Series 20 & 40 :MES114, MES114E, MES114F10 inputs / 4 output modules1 module by SEPAM
Schneider Electric 22- Division - Name – Date
ACE949-2 : 2-wire RS 485 network interface
ACE959 : 4-wire RS 485 network interface
ACE937 Fiber optic interface
ACE969TP-2 Network interfaces
ACE969FO-2Network interfaces
ACE850FONetwork interfaces
ACE850TP Network interfaces
Communication module possibilities
IEC 61850
DNP3
Modbus RTU
Modbus TCP/IP
IEC 60870-5-103
Schneider Electric 23- Division - Name – Date
Residual current inputs : CSH 30/120/200●CSH120 or CSH200 core balance CT
● ratio of 1/470
●CT + CSH30● connection of CT with
secondary ●1A: 2 turns●5A: 4 turns
● Or direct on CCA634
Not adapted for
outdoor installatio
n
Be carrefull lengh of
wiring is
limite
d
Schneider Electric 24- Division - Name – Date
Current sensor inputs●CCA630/CCA634 connector
●The CCA630 connector is used to connect 3 phase current transformers to Sepam
●The CCA634 adds an input for a residual current transformer : do not connect a core balance ctWith CCA634 Io input on A or E connector must not be used.
●Both contain interposing ring CTs with through primaries and be disconnected with the power on since disconnection does not open the CT secondary circuit.
Series 20Series 40Series 80
CT 1 or 5A
Schneider Electric 25- Division - Name – Date
Characteristics comparisonSeries 80Series 20 Series 40
Sensors 3 CTs + 1 core balance CT Or 4 VTs
3 CTs + 3 VTs + 1 core balance CT
3 CTs + 4 VTs + 2 core bal. CTs6 CTs + 4 VTs + 2 core bal. CTs
Or 3 CTs + 8 VTs + 1 cor. bal. CT
Communication port 1 1 2
Equation editor - Yes Yes
Logipam - Yes (optional)
Removable cartridge - Yes
Battery - Yes
0 inputs / 5 outputsBasic I/O 0 inputs / 4 outputs
42 inputs / 23 outputsMaximum I/O 10 inputs / 8 outputs
24 / 250 V DCPower supply 24 / 250 V DC110 / 240 V AC
No UMI Or advanced UMI
Or mimic-based UMI
User / MachineInterface
No UMI or remote advanced UMI
-
-
-
Schneider Electric 26- Division - Name – Date
SEPAM series 20 : Ordered form (1/2)
Schneider Electric 27- Division - Name – Date
SEPAM series 20 : Ordered form (2/2)
Schneider Electric 28- Division - Name – Date
SEPAM series 40 : Ordered form (1/2)
Schneider Electric 29- Division - Name – Date
SEPAM series 40 : Ordered form (2/2)
Schneider Electric 30- Division - Name – Date
SEPAM series 60 : Ordered form (1/2)
Schneider Electric 31- Division - Name – Date
SEPAM series 60 : Ordered form (2/2)
Schneider Electric 32- Division - Name – Date
SEPAM series 80 : Ordered form (1/2)
Schneider Electric 33- Division - Name – Date
SEPAM series 80 : Ordered form (2/2)
Schneider Electric 34- Division - Name – Date
Main points to remember● Take care of storage conditions
● Connecting Sepam and additional modules to earth is compulsory.
● All output relays are not identical :● Some are control type with 8A continuous current
» For Sepam 20/40 : O1 / 02 / 011» For Sepam 60/80 :O1 -> 04 et O101 / O201 / O301
● The availability of some protection functions depend on VTs wiring
● ACExxx communication modules need to be powered with 12 or 24 V DC
● Synchro check option only work with series 60 or 80 and need specific cable CCA 785