Summary of Contents for Microelettrica Scientifica MG30
- Page 1 DATA BASE Doc. N° DB-0084 Rev. MG30 Pag. 1 of 11 MULTIFUNCTION GENERATOR PROTECTION RELAY TYPE MG30 OPERATION MANUAL Copyright 1999 Microelettrica Scientifica...
- Page 2 Current time: Months, Days (format: MMDD (BCD)) Note 1 C_T_3 Current time: Hours, Minutes (format: HHMM (BCD)) Note 1 C_T_4 Current time: Seconds, Hundredths of second (format: SSTT Note 1 (BCD)) 3th harmonic 0 sequence voltage Copyright 1999 Microelettrica Scientifica...
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Page 3: Maximum Values
Note 1 2361 LT_T_2 Trip time: Months, Days (format: MMDD (BCD)) Note 1 2362 LT_T_3 Trip time: Hours, Minutes (format: HHMM (BCD)) Note 1 2363 LT_T_4 Trip time: Seconds, Hundredths of second (format: SSTT (BCD)) Note 1 Copyright 1999 Microelettrica Scientifica... - Page 4 3068 W < Trip number W < 3069 Z < Trips number Z < 3070 Z< < Trips number Z< < 3071 F60FL Trips number F60FL 3072 F50/27 Trips number F50/27 3073 Un3< Trips number F64S100 Copyright 1999 Microelettrica Scientifica...
- Page 5 Cooling time from trip level to the state corresponding to I2 = 1Is Unit = s Min = 10, Max = 1800 5048 I >/U Voltage control on level I > 0 => OFF 1 => ON Copyright 1999 Microelettrica Scientifica...
- Page 6 3 => Dis 5083 Pick-up level of first frequency element Unit = 0.01Hz Min = 5, Max = 999 5084 Trip time delay of first frequency element Unit = 0.1s Min = 1, Max = 600 Copyright 1999 Microelettrica Scientifica...
- Page 7 Uo3 = 0 => Dis 5192 tUo3 Earth fault 100% time delay Unit = 0.01 sec Min = 5, Max = 999 tUo3 = 4 => Ist 5193 External PTs ratio Unit = 0.1 Min = 20, Max = 6550 Copyright 1999 Microelettrica Scientifica...
- Page 8 Minimum impedence first inst. element operates relays R1, R2, R3, R4 Note 3 6096 Z << Minimum impedence second inst. element operates relays R1, R2, R3, R4 Note 3 6097 Uo3< 3td harmonic 0 sequence voltage inst. element operates relays R1, R2, R3, R4 Note 3 Copyright 1999 Microelettrica Scientifica...
- Page 9 As above 7006.3 tZ< tZ< trip status As above 7006.4 Z<< Z<< trip status As above 7006.5 tZ<< tZ<< trip status As above 7006.6 Uo3 trip status As above 7006.7 tUo3 tUo3 trip status As above Copyright 1999 Microelettrica Scientifica...
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Page 10: Diagnostic Status
1 => fault 0 => no fault 9000.9 Programming 1 => relay is in PROG mode 0 => relay is not in PROG mode 9000.10 Breaker failure 1 => breaker failure 0 => no breaker failure Copyright 1999 Microelettrica Scientifica... - Page 11 Notes Number 64647 REL_ID Id of MG30 2.00 Value = 62 Notes 1) Date/time is expressed using 4 words containing BCD (Binary Coded Decimal) numbers. Each nibble represents a digit. The first word stores Years (in a 2 digits format), the second one Months and Days, the third one Hours and Minutes and the fourth one Seconds and Tenths of a second.
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