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SME70, SME70-C, SME70-M-Manual-04-2020

SME70

SME70-C

SME70-M

DIRECTIONAL EARTH FAULT,

SHORT-CIRCUIT

AND VOLTAGE ELEMENTS

MANUAL

SME70

27V1

59

59V2

59N

51

67N

SME70

27V1

59

59V2

59N

51

67N

SME70

27V1

59

59V2

59N

51

67N

1
2
3
...
»

Summary of Contents for SME70

Page 1: ...SME70 C SME70 M Manual 04 2020 SME70 SME70 C SME70 M DIRECTIONAL EARTH FAULT SHORT CIRCUIT AND VOLTAGE ELEMENTS MANUAL SME70 27V1 59 59V2 59N 51 67N SME70 27V1 59 59V2 59N 51 67N SME70 27V1 59 59V2 59N 51 67N ...

Page 2: ...dify or store material document and sw protected by copyright without Thytronic consent Warranty Thytronic warrants devices against defects in materials and workmanship under normal use for a period of ONE 1 YEAR from the date of retail purchase by the original end user purchaser War ranty Period Safety recommendations The warming contained in this document are all important for safety special att...

Page 3: ...t 20 kA Maximum value of time constant t of the phase unidirectional component decay 2 ms Maximum single phase ground fault current insulated neutral earth 500 A Maximum single phase ground fault current neutral earthed through a resistor 1000 A Maximum single phase ground fault current neutral earthed through an inductance 1000 A Maximum single phase ground fault current neutral directly earthed ...

Page 4: ...acquire the state of the line voltages F U N C T I O N C H A R A C T E R I S T I C S SME70 INDOOR FAMILY devices perform its fault detection functions based on measure of line cur rents and phase voltages Earth single phase fault directional detection function 67N SME70 C SME70 M ONLY The function detects the occurrence of earth faults both on insulated neutral networks and on com pensated neutral...

Page 5: ... Endesa default set ting 0 5 s The return to quiescent mode of 51 and 67 relays occour when Voltage Presence condition is detected and hold to a certain time T2 programmable in Set Endesa default setting 10s If there is no return of power within a certain time T23 programmable in Set Endesa default set ting 4 hours outputs contacts 51 and 67 return to quiescent status anyway According to this desc...

Page 6: ...ttromeccanicaperapparatiesistemi ENEL REMC 01 Reference standards EN 60255 22 1 IEC 60255 22 1 EN 61000 4 12 EN 61000 4 12 EN61000 4 18 Damped oscillatory wave 0 1 MHz and 1 MHz common mode 1 0 kV 0 1 MHz and 1 MHz differential mode 0 5 kV Ring wave common mode 2 0 kV Ring wave differential mode 1 0 kV Reference standards EN 60255 22 2 IEC 60255 22 2 EN 61000 4 2 IEC 61000 4 2 Electrostatic discha...

Page 7: ...s 1 kA m Reference standards EN 61000 4 10 IEC 61000 4 10 Damped oscillatory magnetic field Damped oscillatory wave 0 1 MHz 30 A m Damped oscillatory wave 1 MHz 30 A m Mechanical tests Reference standards EN 60255 21 1 EN 60255 21 2 RMEC01 Vibration shock bump and seismic tests on measuring relays and protection equipment EN 60255 21 1 Vibration tests sinusoidal Class 1 EN 60068 2 64 Vibration tes...

Page 8: ...tage dividers Plug DY811 MV rated voltage 6 36 kV Capacitive reactance MTV side 100 700 MΩ Connection to SME70 type shielded wires section 0 5 mm2 length 3 0 m Binary input Quantity 1 Type optocoupler Operative range rated Uaux Max consumption energized 3 mA OUTPUT CIRCUITS Relays Quantity 3 Type of contacts make SPST NO type A Nominal current 2 A Nominal voltage 250 V Breaking capacity 24 V L R 4...

Page 9: ...ickup value is detected a start is issued and after expiry of the associated operate time a trip command 67N relay is issued if however the voltage increases beyond the threshold the element is restored Negative sequence overvoltage 59V2 59Vi U2 threshold 0 01 0 40 En step 0 01 En t2 operate time inverse time characteristic 0 0 60 0 s step 0 1 s Start time 0 045 s Operation The positive sequence v...

Page 10: ...esence absence voltage is described Starting from the no voltage condition Voltage Presence OFF the logic state of supply voltage is detected when for at least 250 ms the following condition is true V4 80 Vn OR V8 80 Vn OR V12 80 Vn Starting from the condition of Voltage Presence ON the logic state is no longer recognized if the following condition is true V4 20 Vn AND V8 20 Vn AND V12 20 Vn witho...

Page 11: ... element it is restored Residual overcurrent 51N IE threshold 1 10 200 A step 2 A tE time delay 0 000 1 000 s step 0 005 s Start time 0 045 s Dropout ratio 0 95 Reset delay 0 02 s Duration of the fault not detected 0 04 s Duration of the fault detected 0 08 s Threshold accuracy 10 Operate time accuracy 10 ms Operation The residual current is compared with the setting threshold Currents above the p...

Page 12: ... Trip sector Inversion OFF 60 120 Trip sector Inversion ON 240 300 Start time 0 04 s Reset ratio 0 95 0 98 Reset time 0 1 s Accuracy residual voltage 1 Accuracy residual current 15 Angular sectors accuracy UE 1 120 IE 1 150 A 2 I0 1 150 A V0 1 120 En Hysteresis on output by sector 3 Operate time accuracy 3 20 ms Operating characteristic voltage residual current for directional earth fault element ...

Page 13: ...2 threshold enabled drives the 67N relay and 67N LED A fault inside the 60 120 sector with the 67NS1 and 67NS2 threshold enabled drives the 51 and 67N relays and 67N LED Operate times Duration of the fault not detected 0 04 s Duration of the fault detected voltage present 0 08 s Duration of the fault detected voltage not present 0 15 s Max operate time voltage present 0 15 s Max operate time volta...

Page 14: ...ence With UD input ON the SME70 device checks for voltage presence if the voltage presence is ON the relay contact TSV is operated in a pulse mode pulse duration time adjustable from 0 ms to 5000 ms at 10 step The TSV contact is normally open when the voltage is OFF The operating logic voltage presence of the OR type for the three phases voltage absence of the AND type for the three phases is desc...

Page 15: ...e recorded Read Faults Fault menu Fault number F Number Fault cause F Cause Faulted phase F Phases Current phase 4 F I4 Current phase 8 F I8 Current phase 12 F I12 Residual current F I0 Phase voltage V4 F V4 Phase voltage V8 F V8 Phase voltage V12 F V12 Residual voltage V0 F V0 I0 V0 displacement F Theta Residual voltage V0 F Vo Sequence Positive sequence voltage Vd F Vd Sequence Negative sequence...

Page 16: ...nections upstream of the sensor In order to ensure a linear response from the sensor the cables must be positioned in the centre of it so that the magnetic effect of the three cables is perfectly compensated in the absence of residual current Fig 2a Hence the assembly indicated in the following drowing in which phase L3 causes local magnetic saturation whereby the vectorial sum of the three curren...

Page 17: ...itive insulators voltmetric socket n 1 Voltmetric socket n 3 10pF capacitive voltage dividers n 1 Mechanical support for RGDAT and voltmetric socket n 4 Plastic straps n 1 3m rilsan sheath n 4 Screws n 4 Shakery washers n 4 Assembly nuts EARTH PHASE 4 8 12 82 Ø5 5 2 220 200 20 120 120 20 280 max 45 SME70 M SME70 M 300 300 49 50 250 50 250 50 49 740 4 65 30 80 400 225 300 748 Ø10 Ø10 N 6 HOLES Ø15 ...

Page 18: ...are performed by means Thyvisor Open store of setting files Create network of relays Configuration of communication based on protocol IEC 61850 ASCII or Excel export reports Open close communication Send settings read settings Firmware upgrades Session level selection and log enabling log files After the device selection Thyvisor allows to Set the relay reference data Read info measures etc Store ...

Page 19: ... using the button Serial Port in the tab Network baud rate parity number of data bits number of stop bits Modbus ad dress as well as various parameters of timers useful for serial communication Moreover inside the Auto Open upper panel is possible to select tick on the Reading settings if the settings must be updated 1 With Reading settings selection the communication session starts and the readin...

Page 20: ...ferred over the relay by means of the Send data command The file may be constructed by creating it from scratch by starting from a file already present on a Personal Computer or from a file taken from a relay by means of the Receive data command which can be activated from the IED tab The window for easy configuration can be accessed anytime clicking on the Protection command in the IED tab THYVIS...

Page 21: ... find instrument to personalize the graphical side of the network just created with Thyvisor IED In IED tab is possible to find command to send and to receive data to the protection relay open Pro tections window syncronize clock and update firmware of the protection relay Protection To manually open configuration window in case of Off line programmation User can click on the Pro tection command F...

Page 22: ... has not been changed all settings are preserved vice versa if the new database is not compatible with the previous the default settings must be send to device with the operations described in the next paragraph Data base restoring Data base restoring If the data base of the up to date release is not compatible with the former the default data must be send to the device Typically the data base mus...

Page 23: ... SME 70 MB terminal block TRIP capacitive divider normal direction of power MA terminal block SME70 0 8 7 1 2 3 4 6 5 Link to remote control unit UP COMTS 24 V TS 51A TS PRES V M1 TS 67AV M2 UD K1 K2 K3 D A COM UD 24 V 1 2 3 4 5 6 7 8 9 10 RS232 Ground Spacer ...

Page 24: ...urrent sensor TRIP capacitive divider normal direction of power MA terminal block SME70 C SME70 M 0 8 7 1 2 3 S1 P1 4 6 5 Link to remote control unit UP COMTS 24 V TS 51A TS PRES V M1 TS 67AV M2 UD K1 K2 K3 D A COM UD 24 V 1 2 3 4 5 6 7 8 9 10 RS232 Ground Spacer CONNECTION DIAGRAM SME70 C SME70 M ...

Page 25: ...25 SME70 SME70 C SME70 M Manual 04 2020 EXTERNAL VIEW SME70 INDOOR FAMILY 135 175 max40 RS232 ON FAIL 67AV 51A INV 67 V12 V8 V4 To Remote control unit UP 165 ...

Page 26: ... C SME70 M Manual 04 2020 INTERNAL VIEW SME70 INDOOR FAMILY 165 173 100 Ø 5 5 150 POWER SUPPLY MA TERMINAL BOARD SENSORS MB TERMINAL BOARD REMOTE CONTROL UNIT RELAY RELAY RELAY RS232 PE X22 X21 CYBER SECURITY PRESET ...

Page 27: ...NT SENSORS SME70 C SME70 M ONLY Phase Current Residual Current Residual sensor 0 Connect to MA according to the terminal tag Phase sensors Connect to MA according to the terminal tag Connect to the ground spacer CAPACITIVE INSULATORS SME70 M ONLY ...

Page 28: ...28 SME70 SME70 C SME70 M Manual 04 2020 VOLMETRIC SOCKET SME70 M ONLY CROSSBAR FOR CAPACITIVE INSULATORS SME70 M ONLY ...

Page 29: ...29 SME70 SME70 C SME70 M Manual 04 2020 SHIELDED INTERCONNECTING CABLE SME70 M ONLY UP CONNECTION CABLE FULL SME70 INDOOR FAMILY ...

Page 30: ...7 Tel 39 02 574 957 01 ra Fax 39 02 574 037 63 Factory 35127 Padova Z I Sud Via dell Artigianato 48 Tel 39 049 894 770 1 ra Fax 39 049 870 139 0 www thytronic it www thytronic com thytronic thytronic it VOLMETRIC PLUG FULL SME70 INDOOR FAMILY ...

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