protection and control hv/mv substation sepam range · pdf file · 2009-07-17hv mv...

Protectionand control

HV/MV substationSepam rangeBusbar differential

2 Busbar differential

Presentation

Contents page

HV

MV

presentation 2Sepam 100 LD high impedance differential protection 4determination of sensors 6surge limiter 7functional and connection scheme 8characteristics 11installation 12current circuit monitoring /use of busbar differential protection: Sepam 2000 W 13protection 14control and monitoring 15operation 20set-up 21functional and connection schemes 22communication 29characteristics 30installation 31ordering information 32

Sepam 2000 W01, W02.

DescriptionSepam busbar differential protection includes:c Sepam 100LD high impedance differential protection,c current circuit monitoring up to the sensors:c management of the different zones to be protected when there are multipleor split busbars.

The faults which appear on busbars are generally violent and they cause majordamage, with serious consequences for energy availability since the busbar is anode of the electrical network.

High impedance differential protection is suitable for busbar protection since it isvery fast and sufficiently sensitive to detect short-circuits.

The principle of busbar differential protection involves installing the current sensorsof all the circuits connected to the busbar in parallel. This parallel mountingarrangement results in a large number of lengthy short-circuits which are spreadacross an extended zone, in particular for open substations. The cutting of currentcircuit wiring can cause degradation of the differential circuit, leading to a loss ofprotection which is not detected or unstable operation (tripping due to a faultoutside the busbar).

Monitoring of the current circuits enables the necessary measures to be taken toavoid such drawbacks and inform the remote monitoring and control system of thedowngraded situation.

Busbars may be single or multiple (double or triple busbars). They may also besplit (busbar isolation or coupling). In this case, one differential protection is usedfor each zone with an overall validation protection to reduce the possibilities ofunwanted operation.

The logical processing of the operation of the different zone protections, thepossibilities of putting in and out of service, annunciation and communication arethe management functions which are connected to the busbar differentialprotection.

Sepam 100 LD.

3Busbar differential

PrincipleThe principle of high impedance differential protectionis based on the creation of a differential circuitthrough which the sum of the currents of the circuitsconnected to the protected zone flow. To do this:c the current sensors of all the circuits connected tothe protected zone have the same ratios and areinstalled in parallel,c the differential circuit, composed of the differentialrelay, series-mounted with the stabilizing resistor Rs,is supplied by the parallel-mounted current sensors.

OperationA short-circuit outside the protected zone may causesaturation of the current sensors and the appearanceof a differential current, but should not trip thedifferential relays. The stabilizing resistor should bechosen so as to limit the value of the current flowingin the differential circuit when one of the currentsensors is completely saturated.

A fault inside the protected zone should the flow of adifferential current which the differential relay candetect: the saturation voltage Vk of the CTs should besufficient for the relay set point to be reached even ifthe current sensors are saturated. Correct operationof the high impedance differential protection isassured if the different components are correctlysized to ensure stability.

StabilityThe stability of a differential protection is its capabilityto detect faults inside the protected zone and not besensitive to faults outside that zone.

Sizing of high impedance differential protectioncomponentsc stabilizing resistor determined in accordance with:v internal resistance of the CTs,v wiring resistance,v differential relay setting,v short circuit current.c current transformers:v all the CTs should have the same transformer ratio,v the knee-point voltage Vk is determined inaccordance with the value of the chosen stabilizingresistor and the differential relay setting.c surge limiter:v determined in accordance with the knee-pointvoltage Vk, the internal resistance of the CTs, wiringresistance and the earth fault current value.

Current circuit monitoringWhen there are no busbar faults present, there is no current in the differentialcircuit since the sum of the currents going to the busbar is zero. The opening ofa CT circuit therefore causes the appearance of a continuous current in thedifferential circuit which corresponds to the strength of the current going into thebay concerned. The flow of this continuous current into the stabilizing resistorproduces a temperature rise which may destroy the resistor, which would inhibitthe differential protection.

Monitoring of the current circuits is therefore based on the detection of acontinuous current in the differential circuit in a normal situation.

c It is performed by a time-delayed low-set point overcurrent current protection.c It causes the making of a circuit which bypasses the differential circuit bythe closing of a contact connected between points A and B.c It indicates that the busbar differential protection is out of service.

Use of busbar differential protection:c “in service” or “out of service”,c zone management:the busbar of a substation is generally split into zones by a busbar coupling circuitbreaker. Busbar faults are detected by a differential protection per zone and thetripping of the zone is validated by an overall differential protection for all thezones,c annunciation: the “in service” and “out of service” modes and zone managementgive rise to:v annunciation by messages on the display unit and by output contacts,v remote annunciation via the communication link.

A

B

Sepam100LD


Sepam 100 LD high impedance differential protection

sepam 100S01 LD

on

trip

20 6025

3035

515

10

40

80

50

70

% In

reset

DescriptionThere are two versions of Sepam 100 LD for busbar protection:c 3-phase 50 Hz: 100 LD X53,c 3-phase 60 Hz: 100 LD X63.

Sepam 100 LD includes the following on the front panel:c 2 signal lamps:v “on” indicator: device energized,v latching type “trip” indicator which indicates tripping of the output relays.c a protection set point selector switch.c a “reset” button for acknowledgment of the output relays and the “trip” indicator.

This button activates a “trip” indicator test lamp while it is activated.

The back panel of Sepam 100 LD comprises:c input/output connectors:v an 8-pin connector for the core balance CT inputs and remote acknowledgment,v an 8-pin connector for the “tripping” outputs and for the power supply,v a 4-pin connector for the “tripping” outputs.c a microswitch used to configure the relay “with” or “without” latching.

Sepam 100 LD X53 and X63 have:c 3 common-point current inputs,c an (insulated) logic input for remote acknowledgment,c “tripping” output relays with 5 contacts (3 normally open and 3 normally closed).

Sepam 100 LD operates in 5 supply voltage ranges(to be specified when ordered):c 24-30 Vdc,c 48-125 Vdc,c 220-250 Vdc,c 100-127 Vac,c 220-240 Vac.

Sepam 100 LD is combined with a stabilizing plate which includes variableresistors which allow it to operate with 1 A or 5 A current transformers.

Sepam 100 LD.


Operating curve - settings

0

10

20

30

40

50

60

70

80

90

100

t (ms)

10 2 3 4 5 6 7 8 9 10 l/ls

settings (1) setting values

Is current set point 5 to 40% In by steps of 5% In40 to 80% In by steps of 10% In

plate Rs = 0 Ω to 68 Ω P = 280 WRs = 0 Ω to 150 Ω P = 280 WRs = 0 Ω to 270 Ω P = 280 WRs = 0 Ω to 470 Ω P = 180 WRs = 0 Ω to 680 Ω P = 180 W

accuracy / performance

set point ± 5 %

pick up / drop out ratio 93 % ± 5 %

response time i 10 ms for I u 10.Isi 16 ms for I u 5.Isi 25 ms for I u 2.Is

memory time i 30 ms

(1) Setting made using selector switch on front panel.

Set-upThe choice of “with” or “without” latching is made using the SW1 microswitchon the rear of the Sepam 100 LD .

SW1

SW1

without latching:

with latching:


Sepam 100 LD high impedance differential protection (cont’d)

Determination of sensorsTo ensure the stability and sensitivity of theSepam 100 LD , the stabilizing resistance and currenttransformer (CT) characteristics are calculatedas follows.The following diagram shows the connection of eachCT to the differential circuit AB of the correspondingphase.

p : Number of CTs in paralleln : CT transformer ratioRCT : CT secondary circuit resistanceim : CT magnetizing currentVk : CT knee-point voltageRf : Resistances of wiring between CT

and differential circuit.Rs : Stabilizing resistancei s : Protection set pointRl : Surge limiteri f : Current in surge limiter (RI)i sc : Maximum short-circuit

current in CT secondary circuits

Choice of current transformersc transformer ratio n.n is the same for all the current transformersconnected to the differential circuit of the highimpedance protection.c Knee-point voltage Vk:Vk > 2 x (RCT + Rf) x isc

Choice of the stabilizing resistance

Surge limiterThe voltage which appears at the terminals of a CTwhen a fault occurs in the protected zone is:

V = 2rx Vk x [isc x (RCT + Rf + Rs) - Vk]

If this value exceeds 3 kV, it is necessary to use asurge limiter RI in parallel with the differential circuitto protect the CTs.Sizing of the surge limiter:c it consists of N elementary limiter blocks which maybe installed in parallel,c each block can accept a maximum current of 40 Arms for 1 second,c the number of blocks in parallel is:

Protection sensitivityThe minimum fault current detected I

d is the fault current that triggers the circulation

of a current in the differential circuit equal to the relay setting is.

However, the present of current is in the differential circuit is accompanied byvoltage Rs x Is at the circuit terminals, which causes the appearance of leakagecurrents:c magnetizing currents Im of the CTs connected in parallel to the differential circuit(im may be read in the CT magnetizing curves),c leakage currents if of the N surge limiter blocks that may be connected in parallelto the differential circuit (if is read in surge limiter curves).

Id = n x (Σ im + N x if + is)

ExampleThe busbar being protected comprises 10 incomer and feeder cubicles(or bushings) with no coupling.The maximum fault current in the protected zone is ID = 30 kA.CT ratio: 2000/5 A

RCT = 1.76 ΩThe maximum short-circuit current in the CT secondary circuits is therefore

isc = 30000 x = 75 A

Distance between CTs and relays: 15 mWiring: 2.5 mm2 copper

Rf = 0.02 x = 0.24 Ω

Number of CTs in parallel on the differential circuit: p = 10desired setting: is = 25% In, i.e. is = 1.25 A

c CT knee-point voltage(RCT + Rf) x icc = (1.76 + 0.24) x 75 = 150 VVk > 2 x 150 = 300 VFor example: Vk = 320 V.

c stabilizing resistance

< Rs i

120 Ω < Rs i 128 ΩThe resistance chosen may be adjusted from 0 to 150 Ω. for example 125 Ωc surge limiter ?V = 2r x 320 [75 (1.76 + 0.24 + 125) - 320]V = 4854 V > 3 kVA surge limiter must be installed in parallel on the differential circuit.Number of limiter blocks required:

c minimum fault current detectedThe voltage Rs x is = 125 x 1.25 = 156 V.The CT magnetizing curve may be used to determine im for 156 Vfor example Im = 20 mA.

The surge limiter leakage current curve gives il = 4 mA for 156 V.The minimum fault current detected is therefore:

Id = (10 x 0.02 + 2 x 0.004 + 1.25) = 583,2 A

Sepam 100 LD

Rf

RI

R

Rs

CT A

B

x isc < Rs <R

CT + R

f

is

Vk

2 x is

IDn x 40

ID: maximum fault currentin the protected zone, in A rms.N u

5

2000

2 x15

2.5

150

1.25320

2 x 1.25

7540

= 2N ≥

2000

5


Surge limiterA triple unit, compressing three independent blocksmounted on the same rod.

0.001 0.01Ib (A rms)

0.1100

U (V rms)

1000

Single unit

weight: 1.2 kg max.

Leakage currentc a block accepts a maximum continuous voltageof 325 V rms, and presents a leakage current ib:

124

62

250

M10mounting isolatedsupport

Ø 10.4connection

30


Functionaland connection scheme

Relays

annunciationand trippingoutputs

4

5

7

8

6

4

3

21

3

5

8

7

4

2

1

3

6

F0phase 1

phase 2

phase 3

remote reset

80 %5 %

S≥1

2aux.Supply

1

&

R

on

trip

without withlatching

≥1

+-

reset button

SW1

F0

F0

0A

1A

1A

1B

Stabilizing plateConnection of CTs and surge limiters:c 5 A rating: between terminals 1-2 and 3-4,c 1 A rating: between terminals 1-2 and 5-6.

123456

1

CSH30: measurementring CT2

RsCT 5A

CT 1A



Connection1A : 8-pin CCA 608.

1B : 4-pin CCA 604 connector.

0A : 8-pin CCA 608 connector

1

2

3

4

5

6

7

8

1

2

3

4

1

2

3

4

5

6

7

8

A

B

AAS LD

1 0

SW1

1~3~

1 A 4

slot number on board(0 to 1)connector identification letter(A or B)

connector terminal n°

Terminal identification.Each terminal is identified by 3 characters.

4

1

2

5

tripping7

04

6

4

3

2

1

3

05

02

03

01

annunciation

annunciation

- auxiliary

+ power supply

81A

1B

Stabilizing platec Screw 1 to 6: screw-clamp connections for 6 mm2 cable.c Screw 1, 2: secondary winding of CSH30 ring CT, connected to 0A .Cable to be used:v sheathed, shielded cable,v min. cross-section 0.93 mm2 (AWG 18)(max. 2.5 mm2),v resistance per unit length < 100 mW/m,v min. dielectric withstand: 1000 V,v max. length: 2 m.

Connect the cable shielding to 0A in the shortest manner possible.

The shielding is grounded in Sepam 100 LD. Do not ground the cable by any othermeans.Flatten the cable against the metallic frame of the cubicle to improve immunityto radiated disturbances.

123456

2

1

2

1

CSH30 0A

2

1

remote reset

6

4

3

7

8

5 phase 3 input

phase 2 input

phase 1 input

0A

: grounding terminal

Cabling via screw terminals for wire 0.6 to 2.5 mm2.Each terminal accepting two 1.5 mm2 cables.

Sepam 100 LD


Connection

Correspondence between primary and secondary connections (e.g. P1, S1).


Sepam100LD

123456

0A

2

1

43

123456

2

1

123456

2

1

21

65

B

A3

A2

A1

L1

L2

L3

plate 2

plate 1

plate 3


Electrical characteristics

Environmental characteristics

analog inputs (with stabilizing plate)

continuous current 10 In

3s current 500 In

logic inputs (remote reset)

voltage 24/250 Vdc 127/240 Vac

maximum consumption 3.5 W 3.7 VA

logic outputs

continuous current 8 A

voltage 24/30 Vdc 48 Vdc 127 Vcc/Vac 220 Vdc/Vac

breaking capacity: DC resistive load 7 A 4 A 0.7 A 0.3 A

(contact 01) AC resistive load 8 A 8 A

breaking capacity: DC resistive load 3.4 A 2 A 0.3 A 0.15 A

(contacts 02 to 05) AC resistive load 4 A 4 A

power supply

range de-activated max. inrushconsumption consumption current

24/30 Vdc ±20 % 2.5 W 6 W < 10 A for 10 ms

48/125 Vdc ±20 % 3 W 6 W < 10 A for 10 ms

220/250 Vdc -20 %, +10 % 4 W 8 W < 10 A for 10 ms

100/127 Vac -20 % +10 % 6 VA 10 VA < 15 A for 10 ms

220/240 Vac -20 % +10 % 12 VA 16 VA < 15 A for 10 ms

operating frequency 47.5 to 63 Hz

“ ” marking on our products guarantees their compliance with European directives.

climatic

operation CEI 60068-2 - 5 °C to 55 °Cstorage CEI 60068-2 - 25 °C to 70 °Cdamp heat CEI 60068-2 95% to 40 °Ceffect of corrosion CEI 60654-4 class I

mechanical

degree of protection CEI 60529 IP 41 on front panel

vibrations CEI 60255-21-1 class I

shocks and jolts CEI 60255-21-2 class I

earthquake CEI 60255-21-3 class I

fire risks CEI 60695-2-1 glow wire

electrical insulation

power frequency CEI 60255-5 2 kV - 1 mn

1.2/50 ms impulse wave CEI 60255-5 5 kV

electromagnetic compatibility

immunity to radiation CEI 60255-22-3 class x 30 V/m

electrostatic discharge CEI 60255-22-2 class III

one-way transients (1) CEI 601000-4-5

1 MHz damped oscillating wave CEI 60255-22-1 class III

5 ns fast transients CEI 60255-22-4 class IV



Sepam 100 LD relays

201

20 175

max. 86

202222

mounting latch

88 max. 84

th = 3 mm max.

weight: 1.9 kg

Stabilizing plate

352.5

104

12

110

weight: 1.7 kg

M6 - 16 mm

Cut-outInstallation

Dimensions and weights


Current circuit monitoring / use of busbar differential protection:Sepam 2000 W

functions ANSI types of Sepamcode W01 W02

protectionpercentage-based single-phase overcurrent (I1, I2, I3) 50/51 1 1

percentage-based single-phase overcurrent (I’1, I’2, I’3) 50/51 1

metering

disturbance recording c csingle-phase current (I1, I2, I3) (as % of 1 A or 5 A) c csingle-phase current (I’1, I’2, I’3) (as % of 1 A or 5 A) ccontrol and monitoring

differential circuit short-circuiting c czone In/Out of service c clockout relay 86 c cinhibit closing 69 c cannunciation 30 c cSepam disturbance recording triggering c cdetection of plugged connectors (DPC) 74 c cpower supply monitoring c cbusbar fault trip counter c cSepam models

standard S36 YR KR

standard number of logic I/O boards 2 2

Selection table

Measurements neededfor operation

Disturbance recordingRecording of electrical signals and logical informationbefore and after a fault recorder triggering order isgiven.

Measurements usedfor commissioningand maintenance

CurrentMeasurement of the current in the differential circuitfor each of the 3 phases.

Characteristics

(1) transfer of records with SFT 2801 software, use of records with SFT 2826 software.(2) measurement available on the TSM 2001 pocket terminal.(3) typical accuracy with nominal values according to IEC 60255-6.

functions ranges accuracy (3)

disturbance recording (1) 12 samples per period

ammeter (2) I1, I2, I3 1%In to 999% of 1A ou 5A ± 5%

ammeter (2) I’1, I’2, I’3 1%In to 999% of 1A ou 5A ± 5%


Current circuit monitoring / use of busbar differential protection:Sepam 2000 W (cont’d)

Protection

Percentage-based single-phase overcurrent(ANSI 50/51) F031, F041, F051, F111, F127, F132Protects the differential circuit (stabilizing resistor)by detection of a continuous differential currentcharacteristic of the breaking of a high impedancedifferential protection CT circuit. The action, witha constant time delay, consists of actuating thedifferential circuit short-circuiting mechanism.(triphase BT connector, ≥ 660 V, ≥ 5A, not supply).

Current sensor sizingThe current sensors are those of the busbardifferential protection. They are sized for highimpedance differential protection.

functions Fxxx (1) settings time delays

percentage-based single-phase overcurrent (I1, I2, I3) F031, F041, F051

3% to 200% of1A or 5A t : 0,05 to 655 s

percentage-based single-phase overcurrent (I’1, I’2, I’3) F111, F121, F131

3% to 200% of 1A or 5A t : 0,05 to 655 s(1) function identification for protection setting using the pocket terminal.

Setting ranges


Control and monitoring

Differential circuit short-circuitingTriggers short-circuiting of the differential circuit toprotect the differential circuit and avoid operationof the high impedance differential protection.

Zone In/Out of serviceUsed to put a high impedance differential protectionfor a zone In/Out of service to cancel the protection ofzone 1 or 2 or to force validation of the check zone,for maintenance for example.

Lockout relay (ANSI 86)Stores tripping orders (lockout) and requires useraction to be put back into operation (reset).

Inhibit closing (ANSI 69)Inhibits the closing of the circuit breaker accordingto operating conditions. (1) The counters are read using the pocket terminal.

Annunciation (ANSI 30)Keeps the user informed by the display of messages.

Sepam disturbance recording triggeringInitiates the recording of differential currents and logic states by:c intentional local or remote action,c zone tripping information.

Detection of plugged connectors (DPC) (ANSI 74)Indication on the display unit that one or more connectors are not plugged in(the detector itself must be connected: see connection schemes).

Power supply monitoringDetects the loss of auxiliary power or relay failure (watchdog).

Fault trip counter (1)

Counts the number of operations for which breaking performances are required,in order to facilitate equipment maintenance.


Sepam W01 put in/out of service

I2: check zonedifferential operation

KP4

I15: zone 1 busbardifferential operation

KP53

KTC33≥1

I14: put out of service

KP54

KTC34≥1

&I13: put into service

&


KTS2

message: ZONE OUTO1

KTS1

&

1

0

1

0≥1

I22: acknowlegment

KTC35

RESET key

KTS5

O13zonetripinformation

≥1

O14inhibitcircuit breakerclosing

&KP3 message:ZONE TRIP

&KP3

message:CHECK ZONE

C1KP49 (RAZ)

&

≥1

≥1

KP3

≥1

KTC35

I11:busbar isolation closed

t0

T1 = 0,2 s

Sepam 100 LDacknowledgment

O22

O1 = 0zone in serviceO1 = 1zone out of service


(1) only for busbar with 1 busbar disconnector and a circuit breaker and a busbar differential protection with two zones validated by a protective check zone.

(1)


Sepam W02 put in/out of zone 1 and zone 2

message : ZONE 1 TRIP

message : ZONE 1 TRIP

RESET key

I22: acknowledgment

I2: check zone differential operation

&

≥1KTC36

KP55

I24: put into service

KP53

KTC33


KP54

KTC34≥1

&I13: put into service

&I14: put out of service

KTS2

message: ZONE 1 OUTO1

KTS1

1

0

&

≥1

≥1

KTC35

I11:busbar isolation closed

t0

T1 = 0,2 s

Sepam 100LDacknowledgment

O22


KTC37

KP56

I23: put into service 1

0

O2

KTS4

message: ZONE 2 OUT

KTS3

I15: zone 1 busbar differential operation

KP4

O13KTS5

zone 1tripinformation

≥1

O14inhibitcircuit breakerclosing

C1KP49 (RAZ)

&

&

≥1

KP4

I2: check zone differential operation≥1

I25: zone 2 busbar differential operation

KP4

≥1KTC35

O23KTS6

zone 2tripinformation

≥1

O24

inhibitcircuit breakerclosing

C2KP49 (RAZ)

1

0

1

0

O1 = 0zone 1 in serviceO1 = 1zone 1 out of service

O2 = 0zone 2 in serviceO2 = 1zone 2 out of service

≥1

(1) only for busbar with 1 busbar disconnector and a circuit breaker and a busbar differential protection with two zones validated by a protective check zone.

(1)



Sepam W01 short-circuiting of the differential circuit

RESET key

KTC35

phase overcurrent I1F111

≥1

KTS7

message:CT1 WIRE


KTS8

message:CT2 WIRE

1

0

1

0

O11closingof short-circuitingdevice

1

0≥1


I22: acknowledgment

KTS9

message:CT3 WIRE

O12klaxon

1

0KP57

KTC38 ≥1

I1: stop klaxon

KTS13


Sepam W02 differential circuit short-circuiting


≥1

KTS7

message:CT1 WIRE Z1


KTS8

message:CT2 WIRE Z1

1

0

1

0

O11closing of zone 1differential circuitshort-circuitingdevice

1

0


KTS9

message:CT3 WIRE Z1

O12klaxon

1

0

KTS13

phase overcurrent I’1F031

≥1

KTS10

message:CT1 WIRE Z2


KTS11

message:CT2 WIRE Z2

1

0

1

0

O21closing of zone 2differential circuitshort-circuitingdevice


KTS12

message:CT3 WIRE Z2

1

0RESET button

KTC35

I22: acknowledgment

≥1

KP57

KTC38 ≥1

I1: stop klaxon

≥1



functions short- short- inhibit inhibit lockout alarm alarm messages (1)

circuiting circuiting closing closing trip tripdiff. cir.1 diff. cir.1 zone 1 zone 2 zone 1 zone 2O11 O21 O14 O24 O13 O23

overcurrent I1 c CT1 WIREovercurrent I2 c CT2 WIREovercurrent I3 c CT3 WIRE

CT1 WIRE Z1 (W02)CT2 WIRE Z1 (W02)CT3 WIRE Z1 (W02)

overcurrent I’1 c CT1 WIRE Z2 (W02)overcurrent I’2 c CT2 WIRE Z2 (W02)overcurrent I’3 c CT3 WIRE Z2 (W02)

busbar fault zone/ c c c ZONE TRIP/ (2)

or check zone CHECK ZONE (2)

busbar fault c c c ZONE1 TRIP(W02)zone 1

busbar fault c c c ZONE2 TRIP(W02)zone 2

detection of CONNECTORplugged connectors (DPC)

Operation

(1) on Sepam 2000 display unit (according to language versions).(2) parameter KP3 according.


function parameters message (1)

zone protection / check zone

zone protection (W01) KP3=0

check zone (W01) KP3=1

check zone protection

with check zone protection KP4=0

without check zone protection KP4=1

remote setting

remote setting active KP38=0

remote setting inactive KP38=1

counters

resetting of busbar fault counter KP49=1

disturbance recording

storage KP50

automatic triggering KP51

manual triggering KP52

zone In/Out of service

zone 1 In service or check zone KP53

zone 1 Out of service or check zone KP54 ZONE 1 OUT or ZONE OUT

zone 2 In service KP55

zone 2 Out of service KP56 ZONE 2 OUT

other

stop klaxon KP57=1

Set-up

(1) on Sepam 2000 display unit (according to language versions).Parameters KP49 to KP57 are of the impulse type.


CE40 1B

1A 4

23

1

21

1

6AESTOR1

21

1

7AESTOR2

ESB 5A

DPC

O2

O1

l2

l1

CDG

2120

19

1716

131211

5

10

1415

18

76

4

2

98

3

1

14

52

63

56

4321

2A

DPC

ECM2B 5051

A1 A2 A3

Rs

sepam 100 LDzone 2

B’

30 A2 A

short-circuitingnot supplied

Functionaland connection schemes

Standard S36YR Sepam 2000.

W01 type

N.B.DPC: detection of plugged connectors.CDG: watchdog.



CE40 1B

1A 4

23

1

21

1

6AESTOR1

21

1

7AESTOR2

ESB 5A

DPC

O2

O1

l2

l1

CDG

2120

19

1716

131211

5

10

1415

18

76

4

2

98

3

1

14

52

63

56

4321

2A

DPC

ECM2B 5051

A’1 A’2 A’3

Rs

sepam 100 LDzone 2

B’

30 A2 A

14

52

63

56

4321

2A

DPC

ECM2B 5051

A1 A2 A3

Rs

sepam 100 LDzone 2

B

30 A2 A



W02 type

Standard S36KR Sepam 2000.N.B.DPC: detection of plugged connectors.CDG: watchdog.


Differential protection

CHECK ZONE


Sepam 2000W01

Sepam 100LD

+_

check zone

5A3

5A47A8

7A7O22

I2

5A9

5A6 O1

check zone

1A8

1A7

0A8

0A7

1A5

1A6O2

O1


Differential protection zone 1

Sepam 100LD

Sepam 2000W01

Sepam 100LD

Sepam 2000W01

zone1A8

1A7 1A6

1A5

O1

O2

Sepam 100LD

+_

check zone

0A8

0A7

6A16

6A135A3

5A47A8

7A7

O22

I2

I15

5A9

5A6

O1trippingcircuit breaker zone


Differential protectionzone 2


Sepam 100LD

Sepam 2000W01

Sepam 100LD

Sepam 100LD

Sepam 2000W02

zone 1

1A8

1A7 1A6

1A5

O1

O2

+_

check zone

0A8

0A7

1A6

1A5

0A8

0A7

7A16

7A136A16

6A135A3

5A47A8

7A7

O22

I2

I15

I25

O2

O1

1A7

1A8

zone 2

5A9

5A65A13

5A10

O1

O2

tripping circuit breaker zone 1

tripping circuit breaker zone 2


Connection of logicinputs/outputs

ESB board

ESB

DPC21

20

19

17

16

13

12

11

5

O2

10

14

15

18

O1

9

8

7

6

4

3

2

1

l2

l1

CDG

A

ESTOR1 board

ESTOR

DPC21

20

O11

7

4

3

2

1

l12

l11

8

5

6

10

9

12

11

O12

O13

O14

13

19

17

16

18

14

15

l13

l14l15

l16

l17

l18

A

terminals connected data ESB board

19181716 watchdog1514

1312 O2 O2 = 0 zone 2 In service11 O2 = 1 zone 2 Out of service10

98 O1 O1 = 0 zone 1 or check zone In service7 O1 = 1 zone 1 or check zone Out of service6

4 I2 high impedance differential check zone operation3 (Sepam 100 LD check zone)

2 I1 Stop klaxon1

terminals connected data ESTOR1 board

19 I18 reserved

18 I17 reserved

17 I16 reserved

16 I15 high impedance differential zone 1 operation(Sepam 100 LD zone 1)

15 I14 zone 1 protection Out of service

14 I13 zone 1 protection In service

13 common

12 O14 inhibit CB closing in zone 1 (1)

11

10 O13 zone 1 tripping information9

8 O12 klaxon7

6 O11 short-circuit differential circuit zone 15

4 I12 reserved3

2 I11 busbar isolation closed (contact closed)1

N.B. The inputs are potential-free and require an external power supply source.

(1) O14: open contact = inhibit closing


terminals data connected to ESTOR219 I28 reserved18 I27 reserved17 I26 reserved16 I25 hight impedance differential operation zone 2

(Sepam 100 LD zone 2)15 I24 zone 2 protection out of service14 I23 zone 2 protection in service13 common12 O24 inhibit CB closing in zone 2 (1)

1110 O23 zone 2 tripping information98 O22 hight impedance differential acknowledgment7 (Sepam 100 LD)6 O21 short-circuit differential circuit zone 254 I22 fault acknowledgment32 I21 reserved for external synchronization1 of communication

ESTOR2 board

ESTOR

DPC21

20

O21

7

4

3

2

1

l22

l21

8

5

6

10

9

12

11

O22

O23

O24

13

19

17

16

18

14

15

l23

l24l25

l26

l27

l28

A

Nota : the inputs are potential-free and require an external power supply source.

(1) O24: open contact = inhibit closing.



IntroductionThe communication option can be used to connect Sepam 2000 to a remote monitoringand control system equipped with a communication channel.c Jbus/Modbus (Modbus sub-group), master-slave protocol with a physical linkof the RS485 type in 2-wire mode (rate of 300 to 38400 bauds).

Communication

remote indications addresses

logic input status

logic output status

zone 1 trip counter C1

zone 2 trip counter C2

zone 1 In service KTS1

zone 1 Out of service KTS2

zone 2 In service KTS3

zone 2 Out of service KTS4

zone 1 tripping KTS5

zone 2 tripping KTS6

wiring fault phase 1 zone 1 KTS7






stop klaxon KTS13

Sepam not reset KTS36

disturbance recording storage KTS50

remote setting not activated KTS51

Communnication tableMERLIN GERIN

remote control orders addresses

zone 1 In service KTC33

zone 1 Out of service KTC34

fault acknowledgment (RESET) KTC35

zone 2 In service KTC36

zone 2 Out of service KTC37

stop klaxon KTC38

disturbance recording storage KTC50

automatic disturbance KTC51recording triggering

manual disturbance KTC52recording triggering

remote reading - remote setting

protection function curves, set points, time delays,angles...

program logic time delays


Electrical characteristics

Environmental characteristics

analog inputs

current transformer TC 1 A < 0.001 VA10 A to 6250 A ratings TC 5 A < 0.025 VA

voltage transformer 100 à 120 V > 100 kΩ220 V to 250 kV ratings

logic inputs

voltage 24/30 Vdc 48/127 Vdc 220/250 Vdc

consumption 10 mA 10 mA 4 mA

logic outputs (relays)

voltage 24/48 Vdc 127 Vdc 220 Vdc

rated current 8 A 8 A 8 A

breaking capacity: DC resistive load 4 A 0.7 A 0.3 A

AC resistive load 8 A 8 A 8 A

auxiliary power supply

DC voltage 24/30 Vdc 48/127 Vdc 220/250 Vdc

consumption when de-activated 18 W 19.5 W 21 W

“ ” marking on our products guarantees their compliance with European directives.

dielectric

power frequency CEI 60255-5 2 kV - 1 mn

climatic

operation CEI 60068-2 - 5 °C to 55 °Cstorage CEI 60068-2 - 25 °C to 70 °C

damp heat CEI 60068-2 95% to 40 °Ceffect of corrosion CEI 60654-4 class I

mechanical

degree of protection CEI 60529 IP 51 on front panel

vibrations CEI 60255-21-1 class I

shocks CEI 60255-21-2 class I

fire CEI 60695-2-1 glow wire

electromagnetic

radiation CEI 60255-22-3 class X 30 V/m

electrostatic discharge CEI 60255-22-2 class III

electrical

1.2/50 ms impulse wave CEI 60255-5 5 kV

1 MHz damped oscillating wave CEI 60255-22-1 class III

5 ns fast transients CEI 60255-22-4 class IV



Installation Dimensions and weights

201

20 300

222

mounting latches (x2)

th = 3 mm max.

Standard Sepam (S36) Cut-out

weight: 9 kg

type wiring accessoriesreference type

current transformers screw for Ø 4 i 6 mm2 CCA 660 (1) connecteureye lug

CSH sensors screw i 2,5 mm2 CCA 606 (1) connecteur

voltage transformers vis i 2,5 mm2 CCA 608 (1) connecteur

temperature sensors vis i 2,5 mm2 CCA 621 (1) connecteur

logic inputs/outputs vis i 2,5 mm2 CCA 621 (1) connecteur

power supply vis i 2,5 mm2 CCA 604 (1) connecteur

Jbus/Modbus communication 9-pin sub-D CCA 602 cable (length: 3 m)connector with 2 9-pin sub-D

connectors

CCA 619 9-pin sub-Dconnector box

352 338

222 202

Sepam (S36) rear face withstandard connectors.

(1) accessories supplied with Sepam.

Connections


Sepam 2000Sepam type (1) .............................................................................................

Quantity .......................................................................................................(1) example: W01

Ordering information

Communication ......................................................... none ..................................

..................................................................................... Jbus/Modbus .....................

Working language ..................................................... French ...............................

..................................................................................... English ..............................

..................................................................................... Spanish .............................

..................................................................................... Italian ................................

Auxiliary power supply ............................................. 24/30 Vdc ..........................

..................................................................................... 48/127 Vdc ........................

..................................................................................... 220/250 Vdc ......................

Options

AccessoriesPocket terminal ............................................................ TSM 2001 .............

Setting software with PC connection kit ..................... SFT 2801 ..............

AInterposing ring CTfor residual current input ............................................. CSH 30 ..................

Jbus/Modbus communicationc 9-pin sub-D connector box ....................................... CCA 619 ................c Jbus/Modbus network connection box .................... CCA 609 ................c cable (length: 3 m) with two 9-pinsub-D connectors ........................................................ CCA 602 ................c RS485/RS232 interface box .................................... ACE 909 ................

quantity

Sepam 100 S01 LD(supplied with connectors and mounting latches)

Quantity: ..........................................

Rated frequency: 50 Hz ................................

60 Hz ................................

Version: single-phase .....................

3-phase .............................

Auxiliary power supply: 24 à 30 Vdc ......................

48 à 125 Vdc ....................

220 à 250 Vdc ..................

100 à 127 Vac ..................

220 à 240 Vac ..................

Stabilizing plate

Resistor 68 Ω - 280 W ........................

150 Ω - 280 W ......................

270 Ω - 280 W ......................

470 Ω - 180 W ......................

680 Ω - 180 W ......................

quantity

Surge limiter

Single module: ..............................................

Triple module: ..............................................

quantity

02 / 1999PCRED398037ENART.06800

This document has beenprinted on ecological paper.

Schneider Electric SA Postal addressF-38050 Grenoble cedex 9Tel: 33 (0)4 76 57 60 60Telex: merge 320842 Fhttp://www.schneider-electric.com

As standards, specifications and designs change fromtime to time, please ask for confirmation of the informationgiven in this publication.

Publishing: Schneider Electric SADesign, production: IdraPrinting:Rcs Nanterre B 954 503 439

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