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SPCJ 1C7
Sensitive earth-fault relay module

User´s manual and Technical description

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Summary of Contents for SPAJ 111 C

Page 1: ...PCJ 1C7 B I Io I o s t n I n I t s I o I o STEP RS 421 Ser No SPAJ 111 C 2 5 1044B fn 50Hz 60Hz 1 2 3 4 5 t t n I I n I n I t t Uaux 80 265V 18 80V n I 1A 5A I SPCJ 1C7 REGISTERS 0 0 0 0 1 2 3 4 5 6 7 8 0 1 SGR o o o SPAJ 111 C Sensitive earth fault relay User s manual and Technical description ...

Page 2: ...ral part 1MRS 750809 MUM EN Sensitive neutral overcurrent relay module SPCJ 1C7 1MRS 750810 MUM EN General characteristics of C type relay modules 1MRS 750328 MUM EN Features Sensitive low set neutral overcurrent stage with definite time characteristic High setneutralovercurrentstagewith definite time characteristic Output relay functions to be freely configured by the user Flexible adaptation to ...

Page 3: ...gnal trips the circuit breaker or starts an external auto reclose relay depending on the application and the configuration of the relay When the energizing current exceeds the set startvalueI0 ofthelow setstage theearthfault relay starts When the set operate time t ex pires the relay operates In the same way the high set stage starts once its set start value I0 is exceeded and when the set operate...

Page 4: ... E F Output relays IRF Self supervision function BS Blocking signal SS Start signal TS Trip signal SGR Switchgroup for configuring trip and alarm signals SGB Switchgroup for configuring blocking signals TRIP_ Trip output SIGNAL1 Signal on relay operation START_ Start signal or signal on relay operation U1 Sensitive earth fault relay module SPCJ 1C7 U2 Power supply and I O module SPTU 240S1 or SPTU...

Page 5: ...stage I0 START 2 Under normal conditions the contact interval 73 75 is closed When stage I0 starts the contact interval 74 75 closes 70 71 72 Self supervision IRF alarm output Under normal conditions the contact interval 70 72 is closed When the auxiliary voltage disappears or an internal fault is detected the contact interval 71 72 closes Protective earth terminal The sensitive earth fault relay ...

Page 6: ... to output relay C 1 SGR 6 Routes the trip signal of stage I0 to output relay A 1 SGR 7 Routes the trip signal of stage I0 to output relay C 1 SGR 8 Routes the trip signal of stage I0 to output relay B 1 Configuration of output relays The start signal of the I0 stage is permanently wired to output relay F and the trip signal to output relay A The trip signal of the I0 stage is wired to output rela...

Page 7: ... is ordered 4 The green Uaux LED on the front panel is lit whenthepowersupplymoduleoperatesprop erly 5 The LED indicator below a setting knob indicates when lit that the setting value is being displayed 6 The LED of the SG1 switchgroup indicates when lit that the checksum of the switch group is being displayed The start and operation indicators the function of the SG2 software switchgroup and the ...

Page 8: ... R 40 ms at the control voltages 220 V dc 1 A 110 V dc 3 A 48 V dc 5 A Contact material AgCdO2 Signalling contacts Terminals 70 71 72 73 74 75 77 78 80 81 Rated voltage 250 V ac dc Continuous carry 5 A Make and carry for 0 5 s 10 A Make and carry for 3 s 8 A Breaking capacity for dc when the signalling circuit time constant L R 40 ms at the control voltages 220 V dc 0 15 A 110 V dc 0 25 A 48 V dc ...

Page 9: ...V 50 Hz 1 min Impulse test voltage IEC 255 5 5 kV 1 2 50 µs 0 5 J Insulation resistance IEC 255 5 100 MΩ 500 V dc Disturbance tests High frequency 1 MHz disturbance test IEC 255 22 1 common mode 2 5 kV differential mode 1 0 kV Electrostatic discharge test IEC 255 22 2 and IEC 801 2 class III air discharge 8 kV contact discharge 6 kV Fast 5 50 ns transients IEC 255 22 4 class III IEC 801 4 level IV...

Page 10: ...S1 SGB SS1 SS2 U1 5 4 I O t t Io Io SERIAL PORT 1 Examples of application Example 1 Feeder earth fault protection Fig 4 Earth fault relay SPAJ 111 C used for the protection of an outgoing feeder The earth fault current is measured with a core balance current transformer The selector switch positions are shown in the table on the following page 1 Blocking signal to be routed to the earth fault rela...

Page 11: ...suited for the earth fault protec tion of networks with rather short feeders as for instance motor and transformer feeders of an industrial switchgear Theearth faultrelayisprovidedwithtwostages a high set stage and a low set stage The low set stage satisfies the sensitivity requirements of the protection and the high set stage the operate time requirements The two stage relay also enables selectiv...

Page 12: ...F START2 TS2 TS1 SGB SS1 SS2 U1 5 4 I O t t Io Io 0 I 0 I 1 SERIAL PORT Example 2 Earth fault protec tion in resistively earthed network 1 Blocking signal from the earth fault relay of an outgoing feeder Fig 5 Thesensitivenon directionalearth faultrelaySPAJ111C usedastheearth faultprotection for the infeeder cubicle and the busbars The selector switch settings are shown in the table on the followi...

Page 13: ...p relay for the earth fault relaysoftheoutgoingfeederstheoperatetimeof the busbar relay must be longer than the operate time of the feeder earth fault relays The busbar earth fault relay in the above example can also be used for the detection of high resistance earth faults When the busbar earth fault relay is used for signalling only the earth fault relay can also be used for disconnection of the...

Page 14: ...SIGNAL1 TRIP2 TRIP1 SPA ZC_ Rx Tx 26 27 IRF IRF 7475 73 F START2 TS2 TS1 SGB SS1 SS2 U1 5 4 I O t t Io Io SERIAL PORT Example 3 Unbalance protec tion of capacitor battery Fig 6 The sensitive non directional earth fault relay SPAJ 111 C used as the unbalance protection for a capacitor battery The selector switch settings are shown in the table on the following page ...

Page 15: ...ings The selector switches of the earth fault relay SPAJ 111 C can be set as follows I0 0 2 2 x In I0 1 8 x In When the switches are set as above the output contactsofrelaySPAJ111Cprovidethefollow ing signals Contact Function 65 66 Signal on tripping stage I0 68 69 Circuit breaker trip signal stage I0 80 81 Signal on tripping stage I0 77 78 Start signal stage I0 73 74 75 Start signal stage I0 70 7...

Page 16: ...rded data and fault analysis Testing both primary and secondary should always be performed in accordance with na tional regulations and instructions The protection relay incorporates an IRF func tion that continuously monitors the internal stateoftherelayandproducesanalarmsignalon the detection of a fault According to the manu facturer s recommendations the relay should be submitted to secondary t...

Page 17: ...3 E _ 10 11 61 62 71 72 70 78 77 81 80 69 68 66 65 SGR 7 5 6 8 3 2 4 SIGNAL1 TRIP2 TRIP1 26 27 IRF Uaux A TIMER START S1 L1 N S2 L2 L3 BS START1 TIMER STOP IRF L1 L4 TS2 TS1 SGB SS1 SS2 U1 5 4 I O t t Io Io 73 74 75 START2 Fig 7 Secondary injection test circuit for the earth fault relay SPAJ 111 C When the test circuit has been completed and the selector switches have been properly set the auxilia...

Page 18: ...y until the low set stage starts After the set operate time the low set stage is not allowed to operate as long as the blocking input is energized Set the switches of the SGR switchgroup as follows before starting the test Switch Position 1 1 2 0 3 0 4 0 5 0 6 0 7 1 8 0 The following relay functions are obtained Output rel Function terminals A 65 66 Trip signal of the I0 stage B 68 69 Trip signal ...

Page 19: ...68 69 when output relay B picks up Checking the high set stage I0 Set the switches of the SGR switchgroup as follows before starting the test Switch Position 1 1 2 1 3 0 4 0 5 1 6 0 7 0 8 0 Note Heavy test currents may be connected to the relay for a short time only For technical speci fications for the energizing inputs see chapter Technical data section Energizing inputs Checking the self superv...

Page 20: ...ectro nics are to be taken by the manufacturer Please contact the manufacturer or his nearest repre sentative for further information about check ing overhaul and calibration of the relay Note The static protection relays contain electronic circuits which may be damaged by static dis charge electricity Make sure that you are prop erly earthed when you are going to withdraw modules from the relay c...

Page 21: ...ments Order information The relay case is made of profile aluminium and finished in beige A rubber gasket fitted on the mounting collar provides an IP54 degree of protection between relay case and mounting panel when the relay is flush mounted The hinged cover of the relay case is made of a clear UV stabilized polycarbonate and pro vided with a sealable fastening screw A gasket along the edge of t...

Page 22: ......

Page 23: ... 0 5 0 05 1 0 30 5 0 5 0 05 1 0 1 0 6 0 10 STEP RESET SG1 0 1 1 2 3 4 5 6 7 8 40 SPCJ 1C7 B I Io I o s t n I n I t s I o I o STEP SPCJ 1C7 Sensitive earth fault relay module User s manual and Technical description ...

Page 24: ...ow set residual current stage I0 setting range 0 2 50 x In Definite time high set residual current stage I0 setting range 1 200 x In The operation of the high set residual current stage can be set out of function The operation of both residual current stages can be blocked by means of an external control signal Local display of measured currents set start currents recorded fault data and other rel...

Page 25: ...erate time the stage that started also operates and provides a trip signal TS1 or TS2 Atthesametimetheoperationindicatorof the concerned stage turns red With switch group SG2 the start and operation indicators can individually be given self reset or manual resetmodeofoperation Iftheself resetmodeof operation is selected the indicator is auto amtically turned off when the stage resets If the manual...

Page 26: ...ignal of stage I0 TS1 Operate signal of stage I0 SS2 Start signal of stage I0 TS2 Operate signal of stage I0 AR1 AR3 Start initiation signals for auto reclosure functions I0 Start current setting of the low set stage I0 I0 Start current setting of the high set stage I0 t Operate time setting of the low set stage I0 t Operate time setting of the high set stage I0 Y Yellow indicator starting R Red i...

Page 27: ... If forinstance theyellowstartindicatorisgiven the manual reset mode and the red indicator the self reset mode the yellow indicator is lit when thestagestarts whichthenturnsredifandwhen the stage operates When the overcurrent stage resets only the yellow indication remains lit The indicators which have been given the manual reset mode are reset locally by pushing theRESETpushbuttononthefrontpanelo...

Page 28: ...rried out to prove that the switches have been set as required and work properly An example of calculating the checksum is given in the description General characteristics of C type relay modules Switch Function SG1 1 Selection of the setting range of the operate time t of stage I0 When SG1 1 0 the setting range of t is 0 05 1 00 s When SG1 1 1 the setting range of t is 0 5 10 0 s SG1 2 Selection ...

Page 29: ...owing table Normally the start indications are self reset and the operation indications manually reset Indicator Manual reset Factory default Yellow indicator I0 starting 1 0 Red indicator I0 tripping 2 2 Yellow indicator I0 starting 4 0 Red indicator I0 tripping 8 8 Checksum Σ 15 10 The PC board of the relay module contains a switchgroupSGBincludingswitches1 8 The switches 1 3 are used for select...

Page 30: ...t digit indicates the state of the remoteresetinput iftheprotectionrelayisprovidedwithone Thefollowingstates may be indicated 0 remote reset control input not energized 1 remote reset control input energized From this register it is possible to move on to the Trip test mode where the start and operate signals of the module can de activated by force one by one For further details see manual General...

Page 31: ...tchgroup SG2 2 Remotely set value Io x p3 Remotely set value Io x p1 Remotely set percentage p3 Remotely set percentage p2 Remotely set percentage p1 Number of starts of the low set stage Io 2 3 Duration of the start situation of stage Io 5 4 Incoming control signals 0 Relay module address code A 0 000 Communication baud rate Bd 1 Number of starts of the high set stage Io SS1 TS1 TS2 IRF SS2 Bus c...

Page 32: ... 2 of set value or 40 ms Operation accuracy within the setting range 0 2 2 x In 5 of set value within the setting range 2 50 x In 3 of set value High set stage I0 Start current 1 8 x In infinite or 5 40 x In infinite or 25 200 x In infinite Start time typically 60 ms Operate time t 0 05 1 00 s or 0 5 10 0 s Reset time typically 70 ms Reset ratio typically 0 96 Operate time accuracy 2 of set value ...

Page 33: ...sum Theeventmaskcantakeavaluewithintherange 0 255 Thedefaultvalueofthesensitiveearth faultrelaymoduleSPCJ1C7is85 whichmeans that all startings and trip events are included in the reporting but not the reset events The eventsrepresentedbytheeventcodesE50 E54 cannot be excluded from the reporting Eventcodesofsensitiveearth faultrelaymodule SPCJ 1C7 Event codes Code Event Weight factor Multiplyer of ...

Page 34: ...ted start current of stage I0 S3 R 1 200 x In 999 Alerted operate time of stage I0 S4 R 0 05 10 s Alerted checksum of switchgroup SG1 S5 R 0 255 Start current of stage I0 set with S11 R 0 2 50 x In the setting knob Operate time of stage I0 set S12 R 0 05 10 s with the setting knob Start current of stage I0 set S13 R 1 200 x In with the setting knob 999 Operate time of stage I0 set S14 R 0 05 10 s ...

Page 35: ...t Remote adjustment of settings V150 R W 0 setting with setting knobs S11 S15 alerted 1 remote settings S31 S35 alerted Event mask V155 R W 0 255 see chapter Event codes Manual self reset of start and ope V156 R W 0 15 see chapter ration indicators switchgroup SG2 Selector switches Opening of password for remote V160 W 1 999 setting of parameters Changing or closing of password V161 W 0 999 for re...

Page 36: ... be repeated The parameters S1 S5 contain the alerted set tingvalues Thesevaluesaredefinedeitherviathe communicationsystemorwiththesettingknobs ThevaluesofS11 S15aresetwithsettingknobs and switchgroup SG1 Parameters S21 S25 contain the percentages set via the communica tion system The parameters S21 S25 can be read and written Writing requires that the pass word V160 for has been opened and the po...

Page 37: ...he relay module generates a control signal to the IRF output relay In most fault situations an autodiagnostic fault code appears on the display of the module The Fault code Fault type 4 Output relay control circuit interrupted or output relay module missing 30 Faulty Read Only Memory ROM 50 Faulty Random Access Memory RAM 195 Too low a value on reference channel with multiplier 1 131 Too low a val...

Page 38: ......

Page 39: ...with indicator Stage 1 Setting knob 2 with indicator Setting knob 3 with indicator Stage 2 Setting knob 4 with indicator Self supervision alarm indicator Internal Relay Fault Display 1 3 digits Step push button STEP Programming switches SG1 Switchgroup indicator Reset push button RESET Start operation indicators General characteristics of C type relay modules User s manual and Technical descriptio...

Page 40: ...ality See section Display Programming switches SG1 Part of the settings and the selections of the operating characteristics for the relay modules in various applications are made with the pro grammingswitchesSG1onthefrontpanel The indicator of the switchgroup glows when the checksum of the switchgroup is shown on the display The checksum can be used for checking that the switches are properly set ...

Page 41: ...he measured set or stored value and the digit at the extreme left red the number of theregister Themeasuredorsetvaluedisplayed is indicated by a yellow LED indicator The number of the register glows only when a stored value is displayed When the auxiliary voltage is connected to a measuring relay module the module initially tests the display by stepping through the digits 1 9 for about 15 seconds ...

Page 42: ...they are displayed by pressing the STEP button In addition to the setting knob settings the main menu contains the measured current values as well as the registers 1 5 as well as 0 and A The remote setting percentage and remote setting value are located in the submenus for the settings and are activated on the display by pressing the RESET button Setting mode Theregistersofthemainmenuandthesubmenu...

Page 43: ...the memory of the relay module by pressing the RESET and STEP button simultaneously At the moment the information enters the memory the three green dashes flash in the display i e A i Leave the setting mode by pressing the RESET button for about 10 s until the display stops flashing j Then enter submenu 1 of register A by pressing the RESET button for approx one second The register address A is th...

Page 44: ... g external blocking signals and status information for the circuit breaker The codes are explained in the descriptions of the relay modules Register A contains the address code of the relay moduleasrequiredbytheserialcommunication system Example 1 on page 4 shows how the address code is altered Submenu 1 of register A contains the data transfer rate value expressed in kilobaud for the serial comm...

Page 45: ...activated by simultaneouspressingofthepush buttonsSTEP and RESET The signal remains activated as long as the two push buttons are being pressed Theself supervisionoutputisactivatedbypress ingtheSTEPbuttononcewhennosettingknob indicator is flashing The IRF output is acti vated in about 5 seconds after pressing of the STEP button and resets after that Simultane ously the display returns to the main ...

Page 46: ...to activate tripping of stage 1 e g the I stage of the overcurrent module SPCJ 3C3 The indicator of the concerned stage starts glowing red f Starting and tripping of the second stage is activated in the same way as stage 1 The indica torofthethirdorfourthsettingstartsflashingto indicate that the concerned stage has been acti vated g To activate the self supervision output step to wards the test po...

Page 47: ...h a self supervision sys tem which continuously supervises the function of the microprocessor its program execution and the electronics When the self supervision system has detected a permanent fault in the relay module the red IRF indicator on the panel starts glowing soon after the fault was discovered At the same time the module puts forward a signal to the self supervision contact of the relay...

Page 48: ...1MRS 750809 MUM EN ABB Substation Automation Oy P O Box 699 FIN 65101 VAASA Finland Tel 358 0 10 22 4000 Fax 358 0 10 22 41094 www abb com substationautomation ...

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