MM30-D
Doc. N° MO-0037-ING
Rev.
4
Date
24.02.2003
Copyright 2010 - Microener
Pag
34
of
36
23. KEYBOARD OPERATIONAL DIAGRAM
Страница 1: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 1 of 36 MICROPROCESSOR MOTOR PROTECTION RELAY WITH DIRECTIONAL EARTH FAULT ELEMENT TYPE MM30 D OPERATION MANUAL...
Страница 2: ...resolution__________________________________________________________________________ 13 2 4 4 Operation during power off_________________________________________________________________ 13 2 4 5 Time...
Страница 3: ...must be compatible with their declared performance 1 6 PROTECTION EARTHING When earthing is required carefully check its effectiveness 1 7 SETTING AND CALIBRATION Carefully check the proper setting of...
Страница 4: ...alibrations and components should not be altered or replaced For repair please ask the Manufacturer or its authorised Dealers Misapplication of the above warnings and instruction relieves the Manufact...
Страница 5: ...ary of the input Current Transformers and refers all its measurements to that value To make the relay properly working with any C T when programming the relay settings we have to input the value of th...
Страница 6: ...are correctly measured in any case two directly 2 2 2 3 Earth Fault Current and Voltage Inputs The real time measurement of the r m s Earth Fault Current is displayed as percent of the rated current...
Страница 7: ...omputed current Ip preheating current Ib continuously admissible current 1 1 3 Im step 0 01Im Im motor rated current 0 1 1 5 In step 0 1In Steady motor cooling down time constant to 1 10 tm step 1tm T...
Страница 8: ...nbalance also controls another inverse time element Minimum Negative Sequence current operation level Is 0 1 0 8 Im step 0 1lm lf ls DIS the function is disactivated Time current curve tIs 1 8 s step...
Страница 9: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 9 of 36...
Страница 10: ...energized for the time tI tBO After this delay the relay it is anyhow reset tBO 0 05 0 5 s step 0 05s 2 2 3 7 F64 Earth Fault protection Minimum Pick up Zero Sequence Residual Current level O 0 02 2 O...
Страница 11: ...the inhibition is permanent until the RESET key is operated 2 2 3 9 Starting Sequence Control During start up of the motor the unit can control an output relay used to operate the switch over of two...
Страница 12: ...tep 1A Motor rated current lm 0 1 1 5 In step 0 01In Motor starting current lst 0 5 9 9 Im step0 1 Im Starting time tst 1 120 s step 1s Transition current level ITr 0 11 Ist step 0 1 Ist Transition ti...
Страница 13: ...Io cos o o Fig 1 Fig 2 The relay measurement is 3Io x cos o o Io The relay trips when Io O fig 2 i e when the component of the input current in the measuring direction of the relay exceeds the set tri...
Страница 14: ...displayed with one of the groups of digits YY MMM or DD blinking The DOWN key operates as a cursor It moves through the groups of digits in the sequence YY MMM DD YY The UP key allows the user to mod...
Страница 15: ...ter scanning by the key SELECT Parameter modification by the key Set validation by the key ENTER Scanning of the menus by the key MODE SELECT ENTER Enabled only if input current is zero ENTER RESET MO...
Страница 16: ...LED O Flashing when earth fault current exceeds the set level O Illuminated on trip after tO time delay h Yellow LED ROTOR STALL Illuminated on trip of the Locked Rotor element I ILR and or on activat...
Страница 17: ...orts see diagram herebelow The module REX 8 includes eight RA RB RC RD RE RF RH RG user programmable plus one R Diag diagnostic output relays The master module MM30 DX can control altogether up to six...
Страница 18: ...ption can be connected via a cable bus or with proper adapters a fiber optic bus for interfacing with a Personal Computer type IBM or compatible All the operations which can be performed locally for e...
Страница 19: ...robe This function is enabled by programming the variable RTD ON see 12 1 If the function is enabled the input RTD is activated when the resistance connected to the terminals 1 14 exceeds the limits 5...
Страница 20: ...in the memory SET DISP Reading of the settings and of the configuration of the output relays as programmed PROG Access to the programming of the settings and of relay configuration TEST PROG Access t...
Страница 21: ...e degree 0 999 Uo xxxxxV RMS Voltage displayed as primary volts 0 65000 o xxx Phase displacement h xxxxx Operation hours 0 65000 If no keys is operated in 60 sec the display comes back to the default...
Страница 22: ...rrent Is mxxx Negative sequence component of current T Tnxxx Motor heating UoxxxxxV Zero sequence secondary voltage oxxxxx Io Uo phase displacement angle in degrees 10 4 TRIP NUM Counters of the numbe...
Страница 23: ...he key SELECT now scrolls the available parameters By the key the displayed values can be modified to speed up parameter s variation press the key SELECT while or are pressed Press key ENTER RESET to...
Страница 24: ...during run 1 25 1 s Is 0 3Im Trip level of inverse time current unbalance protection element Dis 0 1 0 8 0 1 Im tIs 4s Trip time delay of inverse time current unbalance protection when I2 Im 1 8 1 s...
Страница 25: ...1 R2 R3 R4 RA RB RL StNo 1 Start No limitation tripping operates relay R1 R2 R3 R4 RA RB RL ILR 1 Locked Rotor tripping operates relay R1 R2 R3 R4 RA RB RL tI2 1 Time delayed unbalance tripping operat...
Страница 26: ...est It is generally recommended that this test be run only in a bench test environment or after all dangerous output connections are removed 14 MAINTENANCE No maintenance is required Periodically a fu...
Страница 27: ...1MHz Electrical fast transient burst IEC61000 4 4 level 3 2kV 5kHz HF disturbance test with damped oscillatory wave 1MHz burst test IEC60255 22 1 class 3 400pps 2 5kV m c 1kV d m Oscillatory waves Ri...
Страница 28: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 28 of 36 16 CONNECTION DIAGRAM SCE1423 Rev 2 Standard Output 16 1 CONNECTION DIAGRAM SCE1499 Rev 0 Double Output...
Страница 29: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 29 of 36 17 WIRING THE SERIAL COMMUNICATION BUS SCE1309 Rev 0 18 CHANGE PHASE CURRENT RATED INPUT 1 OR 5A...
Страница 30: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 30 of 36 19 THERMAL IMAGE CURVES TU0249 Rev 1...
Страница 31: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 31 of 36 20 INVERSE TIME UNBALANCE PROTECTION ELEMENT TU0248 Rev 1...
Страница 32: ...osition of the screws driver mark Draw out the PCB by pulling on the handle 21 2 Plug in Rotate clockwise the screws and in the horizontal position of the screws driver mark Slide in the card on the r...
Страница 33: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 33 of 36 22 OVERALL DIMENSIONS MOUNTING...
Страница 34: ...MM30 D Doc N MO 0037 ING Rev 4 Date 24 02 2003 Copyright 2010 Microener Pag 34 of 36 23 KEYBOARD OPERATIONAL DIAGRAM...
Страница 35: ...hermal time constant 3 1 10 Ta n Prealarm motor heating level 90 50 110 Ts n Motor restart heating level 100 40 100 Ib Rated maximum continuous motor overload 1 05 Im 1 1 3 StNo Max No of startings al...
Страница 36: ...Ta ITr Starting switch over tripping ITr StNo 1 Start No limitation tripping StNo ILR 1 Locked Rotor tripping ILR tI2 1 Time delayed unbalance tripping tI2 I No load running tripping I I Instantaneou...
