Microelettrica Scientifica MC2-30T Operation Manual Download

Page: 41 / 70

MC2-30T

Doc. N°

MO-0483-ING

Date

17.03.2022

Rev.

Pag. 41

17.12 - Function:

3Io>

(Third Earth Fault Element 50N/51N)

Status

→

Enab.

Yes

[No / Yes]

Options

→

tBI

Off

[Off / 2tBO]

Oper.Levels

→

(0.01

9.99)

step 0.01 On

Timers

→

(0.02

100)

step

0.01 s

→

tBO

0.75

(0.05

0.75)

step

0.01 s

On = Rated primary current of CTs or of the current Tore CT.

17.12.1 - Description of variables

Enab.

: Function enabling (No = Disable / Yes = Enable)

tBI

: Blocking Input reset time

Off

= Permanent block

2tBO

= Set 2xtBO.

: Minimum operation level

: Trip time delay

tBO

: Time to reset of the Blocking Output after expiring of the Trip time delay. “tBO” is

also the trip time delay of the Breaker Failure function.

Summary of Contents for MC2-30T

Page 2: ...1 Name _____________________________________________________________________________________14 8 2 User Descr _________________________________________________________________________________14 8 3 L...

Page 3: ...9 17 18 2 Operation ____________________________________________________________________________49 17 19 Function BreakerFail Breaker Failure ________________________________________________________49...

Page 4: ...racticable protection means used in designing electronic circuits the electronic components and semiconductor devices mounted on the modules can be seriously damaged by electrostatic voltage discharge...

Page 5: ...tion port independent from the USB port on front panel Input currents are supplied to 3 current transformers measuring phase currents An additional internal CT directly measures the residual Zero Sequ...

Page 6: ...e used to scroll the items of the different menus Local Control Measurements Energy metering etc Decrease By the key select the windows showing the ICONS of the available menus By the key select the d...

Page 7: ...DS Measure ACTUAL MEASUREMENTS TripRec TRIP RECORDING Counter PARTIAL COUNTERS RESETTABLE COUNTER ROCnt TOTAL COUNTER READ ONLY COUNTER Events EVENT RECORDING Setting FUNCTION SETTINGS System SYSTEM S...

Page 8: ...e as follows 1 Press Menu for access to the main menu with icons 3 Select LedClear Press Select to execute the command 2 Select icon LocalCmd 4 When command has been executed the display shows Command...

Page 9: ...f 70 7 Leds Configuration The relay manage up to 10 signal leds Programmable 1 led Power green For Leds programming only via software operate as follows Open the software program and connect to the re...

Page 10: ...ed Flashing When cause appear led is flashing 7 5 Funct Mode Volatile When cause disappear led turn off Not memorized Latched When cause disappear led remain illuminated memorized 7 6 Functions Select...

Page 11: ...disk usb now detachable rDskClean Removable disk usb near to full clean operation is required rDskFull Removable disk usb full write locked rDskWR Removable disk usb write in progress rDskFRMT Remova...

Page 12: ...ched 1I Main Windows 7 8 1 Link Enable Select Link enable related to Led 1 and press right button on mouse select Value change Select Linked and press OK if Password is request see Password 7 8 2 Flas...

Page 13: ...nct Mode related to Led 1 and press right button on mouse select Value change Select Latched and press OK if Password is request see Password 7 8 4 Functions Select Functions related to Led 1 and pres...

Page 14: ...P Fall Down 8 5 Timer Time delay 0 600 s step 0 01s 8 6 Timer type Delay Add a delay on output activation The Timer is edge triggered on rise edge Monostable P Activated the output for the time Timer...

Page 15: ...o UserVar 0 and press right button on mouse select Value change Insert Current Trip into box and press OK 8 9 2 Linked Functions Select Linked Functions related to UserVar 0 and press right button on...

Page 16: ...3 Operation Logic Oplogic Select Oper Logic related to UserVar 0 and press right button on mouse select Value change Insert OR into box and press OK 8 9 4 Timer Select Timer related to UserVar 0 and...

Page 17: ...g 17 of 70 8 9 5 Timer type Select Timer related to UserVar 0 and press right button on mouse select Value change Select Monostable P into box and press OK 8 9 6 Extra Select Extra related to UserVar...

Page 18: ...ernal Failure Historic records Yes Reset Term Reset to zero of the accumulations relevant to Thermal Image and Interruption Energy only if T is enable Yes Leds Test Signal Leds test No Force Osc Force...

Page 19: ...B current Ic 0 99999 A RMS value phase C current Io 0 99999 A RMS value of Zero Sequence Current RMS Secondary Amps I2 0 99999 In Negative Sequence current Tem 0 99999 T Thermal status as of the full...

Page 20: ...ipRec icon with pushbutton Increase or Decrease Press Select for access 3 Select Display with pushbutton Increase or Decrease Press Select for access For Erase go to 8 4 If no trip is recorded the dis...

Page 21: ...ded are erased if Password is request see Password 9 When command has been executed the display shows Command Done Press Exit to go back to the main menu Imx 0 99999 A Largest of the 3 phase currents...

Page 22: ...losure cycle successful RCLBL 0 Operations counters Automatic reclosure blocked Lock out TCS 0 Operations counters Trip Circuit Supervision IRF 0 Operations counters Internal Relay Fault BrkF 0 Operat...

Page 23: ...tomatic reclosure failed TwRCL 0 Operations counters Trip non enable for automatic reclosure RCLok 0 Operations counters Automatic reclosure successful MCLok 0 Operations counters Manual reclosure cyc...

Page 24: ...ess 3 Select Display with pushbutton Increase or Decrease Press Select for access For Erase go to 7 4 If no event is recorded the display shows message No Events 5 If any event was recorded select Vie...

Page 25: ...close by key Rise manClLocC Circuit Breaker intentional close by local command Rise manClRemC Circuit Breaker intentional close by remote command Rise manClExtIn Circuit Breaker intentional close by...

Page 26: ...e Fall 0 D4 Digital Input D4 Rise Fall 0 D5 Digital Input D5 Rise Fall 0 D6 Digital Input D6 Rise Fall 0 D7 Digital Input D7 Rise Fall 0 D8 Digital Input D8 Rise Fall Output Relays 0 R1 Output relays...

Page 27: ...t System icon with pushbuttons Increase or Decrease Press Select for access 3 Select CTs PTs Press Select for access 4 Select Phase CT Press Select for access 5 Select Primary to modify the value or p...

Page 28: ...FileSys File Systems and disks management T T Thermal Image 1I 1I First Overcurrent Element 2I 2I Second Overcurrent Element 3I 3I Third Overcurrent Element 1Io 1Io First Earth Fault Element 2Io 2Io S...

Page 29: ...ns Increase or Decrease 8 Set new values pushbuttons Increase or Decrease buttons Press Select Press Write 3 Select by pushbuttons Group 1 9 If the change of parameters is completed press Exit Press S...

Page 30: ...ease or Decrease to set the third digit 2 Press Next to validate and go to the next digit 6 Press Next to validate and go to the next digit 3 Use the key Increase or Decrease to set second digit 7 Use...

Page 31: ...nterface program for Windows XP 7 it is possible connect a Personal Computer to download all available information operate any control and program the relay the protocol used is Modbus RTU To avoid el...

Page 32: ...Display backlight can be programmed always on ON or switched on Automatically for a few second set parameter tBckL at any operation of the keyboard Example set Local Language 1 Press Menu for access...

Page 33: ...and write eJrn Journal log file Enable Journal file write enabled Disable Journal file write disabled eTrip Faults log file Enable Faults file write enabled Disable Faults file write disabled eOsc Os...

Page 34: ...g File Trips_15 06 2016 txt Date Time Event Values 2016 06 15 08 17 27 200 tTCS Imx 0 0 Ia 0 0 Ib 0 0 Ic 0 0 Io 0 0 I2 0 00 Tem 0 2016 06 15 10 31 03 901 tTCS Imx 0 0 Ia 0 0 Ib 0 0 Ic 0 0 Io 0 0 I2 0...

Page 35: ...o T Ts reaches the level set for Thermal Alarm Tal of the max allowed heating the relay trips accordingly 17 6 2 1 Trip time of the Thermal Image Element The trip time of the Thermal Image Element is...

Page 37: ...e Yes Enable f t Operation characteristic Time Current curve D Independent definite time A IEC Inverse Curve type A B IEC Very Inverse Curve type B C IEC Extremely Inverse Curve type C I IEEE Inverse...

Page 38: ...g Logic it is possible to inhibit the time delayed tripping by an external signal that activates a Digital Input programmed for this functionality The programmed Digital Input gets activated by an ext...

Page 39: ...he Breaker Failure function t2xI Maximum time of automatic threshold doubling on inrush td2xI Time for calculation of current rate of rise 17 9 Function 3I Third Overcurrent Element F50 51 Status Enab...

Page 40: ...EE Moderate Inverse Curve SI IEEE Short Inverse Curve tBI Blocking Input reset time Off Permanent block 2tBO Set 2xtBO Is Minimum operation level ts Trip time delay tBO Time to reset of the Blocking O...

Page 41: ...100 step 0 01 s tBO 0 75 s 0 05 0 75 step 0 01 s On Rated primary current of CTs or of the current Tore CT 17 12 1 Description of variables Enab Function enabling No Disable Yes Enable tBI Blocking In...

Page 42: ...delay tBO Time to reset of the Blocking Output after expiring of the Trip time delay tBO is also the trip time delay of the Breaker Failure function 17 13 2 Time Current operation of the first Curren...

Page 43: ...ot 3 4 1 3 4 AR Enable on shot 1 3 4 2 3 4 AR Enable on shot 2 3 4 1 2 3 4 AR Enable on shot 1 2 3 4 see example R 2I 1 2 3 4 Same as above R 3I 1 2 3 4 Same as above R 1Io 1 2 3 4 Same as above R 2Io...

Page 44: ...Sequence Coordination SeqC tSeqC When SeqC is set to enable it allows the reclose element to count any downstream recloser operation taking place within the sequence coordination time tSeqC as its ow...

Page 45: ...of the AR cycle are initiated on tripping of the function 1I R 1I 1 2 3 4 all the shots n 1 and 2 and 3 and 4 of the AR cycle are initiated on tripping of the function 1I R RT Recl Dis no shot is ini...

Page 46: ...elements during TrCL makes the relay enter into the Lock Out status L O In the L O status the relay after breaker opening does not produce any command for automatic reclose in this situation the RCL d...

Page 47: ...he reduction function does not operate tC1 I Reduced trip time for 1I tC2 I Reduced trip time for 2I tC3 I Reduced trip time for 3I tC1 Io Reduced trip time for 1Io tC2 Io Reduced trip time for 2Io tC...

Page 48: ...ontact of R1 is used to trip the C B as reported in the drawing here below The supervision works when the C B is closed and recognizes the Trip Circuit as sound as far as the current flowing exceeds 1...

Page 49: ...of the function operates a user programmable output relay 17 19 Function BreakerFail Breaker Failure Status Enab No No Yes Timers tBF 0 75 s 0 05 0 75 step 0 01 s 17 19 1 Description of variables Ena...

Page 50: ...Logic see User Trigger Oscillo FEUserLg On falling edge of User Logic tPre Recording time before Trigger tPost Recording time after Trigger 17 20 2 Operation In the options Trig Start and Trig Trip th...

Page 51: ...earth fault element F50N 51N t2Io Trip 3Io 3Io Start Third earth fault element F50N 51N t3Io Trip 1Is 1Is Start First negative sequence current element F46 t1Is Trip 2Is 2Is Start Second negative seq...

Page 52: ...ons 17 20 4 4 OpLogic Operation Logic None OR AND XOR NOR NAND NOT Ff SR Counter Rise UP Fall Down 17 20 4 5 Timer Time delay 0 600 s step 0 01s 17 20 4 6 Timer type Delay Add a delay on output activa...

Page 53: ...Select Change Windows from Menu button Select User Variable Setting for User Trigger Oscillo 1I 2I 3I AND 1 Monostable 10 17 20 5 1 Linked Functions Select Linked Functions related to User Trigger Osc...

Page 54: ...n Logic Oplogic Select Oper Logic related to User Trigger Oscillo and press right button on mouse select Value change Insert AND into box and press OK 17 20 5 3 Timer Select Timer related to User Trig...

Page 55: ...0 5 4 Timer type Select Timer related to User Trigger Oscillo and press right button on mouse select Value change Select Monostable P into box and press OK 17 20 5 5 Extra Select Extra related to User...

Page 56: ...ve KeyE Disable The pushbuttons on Front Panel are disabled Enable The pushbuttons on Front Panel are Enable Key0 Configure a Key as C B Open KeyC Configure a Key as C B Close tL R Admissible time bef...

Page 57: ...r 0 Gate 1 manOpCmd Gen Trip Manual Open Command Generic Trip UserVar 0 Gate 2 CL Cmd Close Command 17 21 2 3 DO Configuration Select DO Configuration Assign to Type Linked Functions 0 R1 Gate 1 0 R2...

Page 58: ...hen the relevant terminals see wiring diagram are shorted 0 D2 Programmable D2 0 D3 Programmable D3 0 D4 Programmable D4 0 D5 Programmable D5 0 D6 Programmable D6 0 D7 Programmable D7 0 D8 Programmabl...

Page 59: ...on function 18 2 5 Example Setting Digital Input Open software program and connect to the relay Select Change Windows from Menu Select DI configuration Setting for Bi1I 1I 18 2 5 1 Functions Select Fu...

Page 60: ...1 Relay Relay internal name 18 4 1 2 Linked function It s available only 1 link select the function for tripping the output relay for multiple association use User Variable 18 4 1 3 Operation Logic N...

Page 61: ...the output relay is operated when the controlling Functional Output is activated and remains in the operated condition until a manual reset command is issued by the relay keyboard local commands menu...

Page 62: ...ings for 0 R1 Change settings for 0 R1 1I Normally Denergized Automatic reset 0 5 18 4 2 2 Linked Functions Select Linked Functions related to 0 R1 and press right button on mouse select Value change...

Page 63: ...6 Date 17 03 2022 Rev 2 Pag 63 of 70 18 4 2 3 Output Config Select Output Config related to 0 R1 and press right button on mouse select Value change Select Normally Denergized from combo box and press...

Page 64: ...tion related to 0 R1 and press right button on mouse select Value change Select Manual reset from combo box and press OK if Password is request see Password 18 4 2 5 tON Select tON related to 0 R1 and...

Page 65: ...s Disable Local Remote Discrepancy Status LRC Last reclose cycle status NotAvail Not available Success Recloser success ManClose Manual reclos success Failed Recloser Failed Blocked Recloser blocked T...

Page 66: ...W Day Es Wednesday 1 Press Menu for access to the main menu with icons 2 Select icon TimeDate by pushbuttons Increase or Decrease Press Select 3 Press Modify 4 The last two figures of the Year will ap...

Page 67: ...y Press Exit to go back to the main menu Press Modify to go back to the step 3 Press the button Next to go back to the previous display 20 1 Clock synchronization The internal clock has 1ms resolution...

Page 68: ...Corrupt Code Corrupt Data Corrupt Data Corrupt SPI Serial peripheral interface IIC I2C bus failure If an internal self clearing transient fault is detected it is recorded into an historical file with...

Page 70: ...aves Ring waves IEC61000 4 12 level 4 4kV c m 2kV d m Surge immunity test IEC61000 4 5 level 4 2kV c m 1kV d m Voltage interruptions IEC60255 4 11 Resistance to vibration and shocks IEC60255 21 1 IEC6...

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