Related Manuals for MICROELETTRICA MC30-BC
Summary of Contents for MICROELETTRICA MC30-BC
- Page 1 MC30-BC MO-0365-ING Doc. N° MICROPROCESSOR OVERCURRENT & EARTH FAULT+ BROKEN CONDUCTOR RELAY TYPE OPERATION MANUAL Copyright 2008 980.09.01.X Date 15.06.2022 Rev. Pag.
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Page 2: Table Of Contents
MC30-BC MO-0365-ING Doc. N° 1. General Utilization and Commissioning Directions ________________________________________________________ 3 1.1 - Storage and Transportation ______________________________________________________________________ 3 1.2 - Installation __________________________________________________________________________________ 3 1.3 - Electrical Connection ___________________________________________________________________________ 3 1.4 - Measuring Inputs and Power Supply _______________________________________________________________ 3 1.5 - Outputs Loading ______________________________________________________________________________ 3 1.6 - Protection Earthing ____________________________________________________________________________ 3... -
Page 3: General Utilization And Commissioning Directions
MC30-BC MO-0365-ING Doc. N° 1. General Utilization and Commissioning Directions Always make reference to the specific description of the product and to the Manufacturer's instruction. Carefully observe the following warnings. 1.1 - Storage and Transportation must comply with the environmental conditions stated on the product's instruction or by the applicable IEC standards. -
Page 4: Maintenance
MC30-BC MO-0365-ING Doc. N° 1.10 - Maintenance Make reference to the instruction manual of the Manufacturer; maintenance must be carried-out by specially trained people and in strict conformity with the safety regulations. 1.11 - Waste Disposal of Electrical & Electronic Equipment (Applicable throughout the European Union and other European countries with separate collection program). -
Page 5: General Characteristics
MC30-BC MO-0365-ING Doc. N° 2. General Characteristics The MC is a very innovative and versatile line of Protective Relays which takes advantage of the long and successful experience coming from the M-Line. The main features of the MC-Line relays are: Compact draw-out execution for Flush Mounting or for assembly in 19”... -
Page 6: Operation And Algorithms
MC30-BC MO-0365-ING Doc. N° 2.2 - Operation and Algorithms 2.2.1 - Reference Input Values Display Description Setting Range Step Unit Rated Primary current of phase C.T. 9999 Rated Secondary current of phase C.T. Reference main primary current of the relay... - Page 7 MC30-BC MO-0365-ING Doc. N° 2.2.2.4 - Algorithm of the time current curves The Time Current Curves are generally calculated with the following equation: • • t(I) α −...
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Page 8: Time Current Curves Iec (Tu1029 Rev.0)
MC30-BC MO-0365-ING Doc. N° 2.2.3 - Time Current Curves IEC (TU1029 Rev.0) Copyright 2008 980.09.01.X Date 15.06.2022 Rev. Pag. -
Page 9: Time Current Curves Ieee (Tu1028 Rev.0)
MC30-BC MO-0365-ING Doc. N° 2.2.4 - Time Current Curves IEEE (TU1028 Rev.0) Copyright 2008 980.09.01.X Date 15.06.2022 Rev. Pag. -
Page 10: Functions And Settings (Function)
MC30-BC MO-0365-ING Doc. N° 3. Functions and Settings (Function) 3.1 - T> (F49) - Thermal Image protection level FuncEnab → Enable [Disable / Enable] Options → No Param No Parameters TripLev → (50 110) step → (10 100) -
Page 11: Thermal Image Curves (Tu0445 Rev.0)
MC30-BC MO-0365-ING Doc. N° 3.1.2 - Thermal Image Curves (TU0445 Rev.0) Copyright 2008 980.09.01.X Date 15.06.2022 Rev. Pag. -
Page 12: I> (1F51) - First Overcurrent Protection Level
MC30-BC MO-0365-ING Doc. N° 3.2. - I> (1F51) - First overcurrent protection level FuncEnab → Enable [Disable / Enable] Options → [D / A / B / C / MI / VI / I / EI / / SI] Disable [Disable / Enable] →... -
Page 13: I>> (2F51) - Second Overcurrent Protection Level
MC30-BC MO-0365-ING Doc. N° 3.3 - I>> (2F51) - Second overcurrent protection level FuncEnab → Enable [Disable / Enable] Options → Disable [Disable / Enable] Disable [Disable / Enable] → → Enable [Disable / Enable] TripLev → I>> 2.00 (0.50 40.00) step 0.01... -
Page 14: Ih (3F51) - Third Overcurrent Protection Level
MC30-BC MO-0365-ING Doc. N° 3.4 - IH (3F51) - Third overcurrent protection level FuncEnab Enable [Disable / Enable] → Options → Disable [Disable / Enable] → Enable [Disable / Enable] → Enable [Disable / Enable] TripLev → 5.00 (0.50 40.00) step 0.01... -
Page 15: Io> (1F51N) - First Earth Fault Protection Level
MC30-BC MO-0365-ING Doc. N° 3.5 - Io> (1F51N) - First Earth Fault protection level FuncEnab → Enable [Disable / Enable] Options → [D / A / B / C / I / VI / EI / MI / SI] Disable [Disable / Enable] →... -
Page 16: Ioh (3F51N) - Third Earth Fault Protection Level
MC30-BC MO-0365-ING Doc. N° 3.7 - IoH (3F51N) - Third Earth Fault protection level FuncEnab → Enable [Disable / Enable] Options → Disable [Disable / Enable] Enable [Disable / Enable] → TripLev 2.00 step 0.01 → (0.01 9.99) Timers tIoH 0.10... -
Page 17: Bc (I2/I1) - Broken Conductor
MC30-BC MO-0365-ING Doc. N° 3.9 - BC (I2/I1) – Broken Conductor FuncEnab → Enable [Disable / Enable] Options → Disable [Disable / Enable] TripLev → BC> 10.00 (10 100) step Timers → tBC> 0.20 (0.05 60.00) step 0.01... -
Page 18: S Sel - Setting Selection
MC30-BC MO-0365-ING Doc. N° 3.11 – S Sel – Setting Selection Selecting the mode of operation of the change value of rated current. FuncEnab → Disable [Disable / Enable] Options → HourSE [HourSE / InputSE] TripLev → No Param No Parameters Timers →... -
Page 19: Osc - Oscillographic Recording
MC30-BC MO-0365-ING Doc. N° 3.13 - Osc - Oscillographic Recording FuncEnab → Enable [Disable / Enable] Options → Trip [Disable / Start / Trip / Ext.Inp.] TripLev → No Param No Parameters Timers → tPre (0.1 0.5) step →... -
Page 20: Comm - Communication Parameters
MC30-BC MO-0365-ING Doc. N° 3.15 - Comm – Communication Parameters FuncEnab → No Param No Parameters Options → 9600 [9600 / 19200 / 38400 / 57600] → 9600 [9600 / 19200] → 8,n,1 [8,n,1 / 8,o,1 / 8,e,1] → Modbus... -
Page 21: Logic Blocking Of Functions
MC30-BC MO-0365-ING Doc. N° 4. Logic Blocking of Functions 4.1 - Blocking outputs The instantaneous element of each of the protection functions (1F50, 2F50, 3F50, 1F50N, 2F50N, 3F50N) can be programmed to control one of the Output Relays. This relay picks-up as soon as the input quantity exceeds the set trip level of the Protection Function associated and it automatically resets when the input quantity drops below the function reset level (95% of... -
Page 22: Digital Inputs
MC30-BC MO-0365-ING Doc. N° 6. Digital Inputs Three optoisolated, self-powered Digital Inputs D1, D2, D3 are provided. A Digital Input is activated when its terminals are shorted by a cold contact. (Terminals 22 - 19) : It is usable as Function Blocking Input It is used to switch setting from [In] to [InL]. -
Page 23: Relay Management
MC30-BC MO-0365-ING Doc. N° 8. Relay Management The relay can be totally managed locally, either by the RS232 communication port or by means the 4 key buttons and the LCD display, or remotely via the rear communication port RS485. The 2-line x 8 characters LCD display shows the available information. -
Page 24: Signalizations
MC30-BC MO-0365-ING Doc. N° 9. Signalizations Four signal leds are available on the Front Face Panel: Lit-on when C/B open status is detected. OPEN (Digital Input D3 Open) Lit-on when C/B close status is detected. (Digital Input D3 closed) CLOSED Flashing when Breaker Failure is detected. -
Page 25: Serial Communication Port
Note: any change of this setting becomes valid at the next power on. Each relay is identified by its programmable address code (NodeAd) and can be called from the P.C. A dedicated communication software (MSCom) for windows is available on www.microelettrica.com. Maximum length of the serial bus can be up to 200m. -
Page 26: Communication Port On Front Face Panel
MC30-BC MO-0365-ING Doc. N° 11.2 - Communication Port on Front Face Panel This port is used for communication through the Front Face Panel between a local Lap-top PC. The physical link is RS232 by the standard female 9-pin D-sub connector available on the Front Face Panel. -
Page 27: Menu And Variables
MC30-BC MO-0365-ING Doc. N° 12. Menu and Variables 12.1 - Real Time Measurements Automatic scrolling display of the Real Time Measurements is the Default operation. Scrolling can be stopped at any of the measurements and restarted by pressing the Reset button When stopped on one variable, a mark appears aside the measurement. -
Page 28: Counter (Operation Counters)
MC30-BC MO-0365-ING Doc. N° 12.3 - Counter (Operation Counters) The operation of any of the function here below reported, is counted, and recorded in the menu “Counters”. “Real Time Meas” “Counter” “1 counters other counters to go back to “Counter”... -
Page 29: R/W Set (Programming / Reading The Relay Settings)
MC30-BC MO-0365-ING Doc. N° 12.5 - R/W Set (Programming / Reading the Relay Settings) “Main Menu” select “Function” select among following sub menus: 12.5.1 - CommAdd (Communication Address) “CommAdd” “Add: #” “Password ????” (If not yet entered; see § Password) to select the Address (1-250) to validate. -
Page 30: Function (Functions)
MC30-BC MO-0365-ING Doc. N° 12.5.4 - Function (Functions) “Function”, function, to scroll available Functions, to Read/Write setting of the selected function, to select the different definable fields - FuncEnab - TripLev - Options - Timers to access the selected field and read the actual setting of the relevant variable to modify the actual setting;... - Page 31 MC30-BC MO-0365-ING Doc. N° Display Description Setting Range Step Default Function Type Variable Unit Value FuncEnab → Enable Enable of the protection function Enable/Disable (3F51N) Options → Disable Operation controlled by Blocking Digital Input Enable/Disable Enable Function operation triggers the oscillographic wave...
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Page 32: Relaycfg (Relay Configuration)
MC30-BC MO-0365-ING Doc. N° 12.6 - RelayCfg (Relay Configuration) To associate one of the Output Relays to one or more functions: enter the menu “R/W Set”, select “Relay Cfg”, select the “Relay #” to be programmed, select “Link”; at this stage the list of the available functions is displayed. -
Page 33: Keyboard Operational Diagram
MC30-BC MO-0365-ING Doc. N° 13. Keyboard Operational Diagram Copyright 2008 980.09.01.X Date 15.06.2022 Rev. Pag. -
Page 34: Password
OK button when the password is requested. 15. Maintenance No maintenance is required. In case of malfunctioning please contact Microelettrica Scientifica Service or the local Authorised Dealer mentioning the relay's Serial No reported in the label on relays enclosure. -
Page 35: Connection Diagram
MC30-BC MO-0365-ING Doc. N° 17. Connection Diagram 18. Overall Dimensions PROTECTION DEGREE IP44 (IP54 on request) Copyright 2008 980.09.01.X Date 15.06.2022 Rev. Pag. -
Page 36: Direction For Pcb's Draw-Out And Plug-In
MC30-BC MO-0365-ING Doc. N° 19. Direction For Pcb's Draw-Out And Plug-In 19.1 - Draw-Out Rotate clockwise the screws in the horizontal position of the screws-driver mark. Draw-out the PCB by pulling on the handle 19.2 - Plug-In Rotate clockwise the screws in the horizontal position of the screws-driver mark. -
Page 37: Electrical Characteristics
This publication may be subject to alteration without prior notice. Therefore, a printed copy of this document may not be the latest revision. Please contact your local representative for the latest update. The trademarks MS Microelettrica Scientifica, Knorr and Knorr-Bremse as well as the figurative mark “K” are registered. Copyright ©...
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