MULTIFUNCTION MICROPROCESSOR PROTECTION RELAY TYPE IM30-G DATA BASE

Transcription

1 Pag. 1 of 6 MULTIFUNCTION MICROPROCESSOR PROTECTION RELAY TYPE DATA BASE

2 Pag. 2 of Supported MODBUS functions. Both the communication ports support the following MODBUS RTU commands: - Read N words (codes 3 and 4). - Write N words (code 16). 2 ACTUAL MEASUREMENTS 1 IA True R.M.S. value of the current of phase A displayed as primary Amps. Unit = A 2 IB As above, phase B Unit = A 3 IC As above, phase C. Unit = A 4 Io As above, earth fault current Unit = A 5 Us R.M.S. voltage as % of rated VTs secondary Unit = % 7 ϕ Symmetric phase displacement (IΛE). Unit = 360 = overflow 14 I2 R.M.S. Negative sequence current as % of basic setting Ib Unit = %Ib 3 MAX VALUES 1000 Max. value of phase A current after the first 100ms, displayed as p.u. of C.Ts rated Unit = 0.1 In IA current 1001 IB As above, phase B Unit = 0.1 In 1002 IC As above, phase C. Unit = 0.1 In 1003 Io As above, earth fault current Unit = 0.01 On 1004 Us Max. val. of input voltage after the first 100ms, as % of rated input Unit = % 1008 I2 As above, negative sequence current Unit = % Ib 1009 SA Max. current of phase A during the first 100ms. Unit = 0.1 In 1010 SB As above, phase B. Unit = 0.1 In 1011 SC As above, phase C. Unit = 0.1 In 1012 So As above, earth fault current. Unit = 0.01 On 1076 SU Max. input voltage during the first 100ms Unit = %

3 Pag. 3 of 6 4 LAST TRIP 2000 Cause Function which caused the last trip (Last Trip - 0) Ia Phase A current (as p.u. of C.T.'s rated current) (Last Trip - 0) Unit = 0.1 In 2002 Ib Phase B current (as p.u. of C.T.'s rated current) (Last Trip - 0) Unit = 0.1 In 2003 Ic Phase C current (as p.u. of C.T.'s rated current) (Last Trip - 0) Unit = 0.1 In 2004 Io Earth fault current (Last Trip - 0) Unit = 0.01 On 2005 Us Input voltage (Last Trip - 0) Unit = % 2013 I2 Negative sequence component ( as % of full load current) (Last Trip - 0) Unit = % Ib 5 COUNTERS 3000 I> Low set time delayed overcurrent I>> High set time delayed overcurrent Io> Low set time delayed earth fault Is Low set unbalance time delayed element Is High set unbalance time delayed element Ir> Reverse power delayed element Z< Under impedance delayed element - 6 SETTINGS All the following words can always be read. To write them the user must first write a password (2295) into word Such password is valid for 30 sec NodeAddress MOBDUS node address. Min = 1 This is the relay s address for MODBUS communication. It Max = 250 is taken into account ONLY AT POWER UP 5001 FN System rated frequency 0 => 50Hz 1 => 60Hz 5002 In Rated primary current of the phasec.t.'s Unit = 1 Min = 1, Max = On Rated primary current of the tore C.T. Unit = 1 Min = 1, Max = Uns Rated secondary phase to phase voltage of system's P.Ts. Unit = 1 Min = 100, Max = Ib Generator s rated current as p.u. of Cts rated current Unit = 0.1 In Min = 5, Max = F(I>) Operation characteristic of the low set overcurrent element 0 => D 1 => SI 5009 I> Trip level of low-set overcurrent element Unit = 0.01 Ib Min = 100, Max = => Disable 5010 ti> Trip time delay of low-set overcurrent element Unit = 0.01 sec Min = 5, Max = 3000

4 Pag. 4 of I>> Trip level of high-set overcurrent element Unit = 0.1 Ib Min = 10, Max = = Disable 5012 ti>> Trip time delay of high-set overcurrent element Unit = 0.01 sec Min = 5, Max = O> Trip level of low-set earth fault element Unit = 0.01 On Min = 2, Max = => Disable 5016 to> Trip time delay of low-set earth fault element Unit = 0.01 sec Min = 5, Max = tbf Max reset time delay of the instantaneous element Unit = 0.01 sec Min = 5, Max = Is Trip level of unbalance 1 element Unit = 0.01 Ib Min = 5, Max = => Disable Is Negative sequence current alarm level Unit = 0.01 Ib Min = 3, Max = => Disable 5038 t2is Independent trip time delay of alarm element Unit = 1 sec Min = 1, Max = Ks Time multiplier of the I 2 t time-current curve Unit = 1 sec Min = 5, Max = tc Cooling time from trip level to cold state Unit = 1 sec Min = 10, Max = α Impedance characteristic angle 0 => 0 R, 1 => 330 R+C, 2 => 300 R+C, 3 => 270 C, 4 => 240 C-R, 5 => 210 C-R, 6 => 180 -R, 7 => 150 L-R, 8 => 120 L-R, 9 => 90 L, 10 => 60 L+R, 11 => 30 L+R 5099 tz Trip time delay of the under impedance element Unit = 0.1 sec Min = 2, Max = ti Integration time Unit = 0.1 sec Min = 0, Max = K1 Diameter of the circle Unit = 1 % Min = 50, Max = K2 Offset of the circle including the under impedance tripping zone Unit = 1 % Min = 5, Max = Ir> Trip level of the reverse power element Unit = 0.01 In Min = 2, Max = tir> Independent trip time delay of reverse power element Unit = 0.01 sec Min = 10, Max = 6000

5 Pag. 5 of 6 7 OUTPUT RELAYS 5021 t2= The operation of the blocking input (2) can be programmed so that it lasts as long the blocking input signal is present (t 2=OFF) or so that, even with the blocking 0 => OFF 1 => 2tBF input still present, it only lasts for the set trip time delay of the function plus an additional time 2xtBF (t 2=2xtBF) = The input (2) for blocking the time delayed elements relevant to phase and ground faults operate on I>(Il) or I>>(Ih) or O>(Io) as programmed 0 => Il, 1 => Ih, 2 => IlIh, 3 => Io, 4 => IoIl, 5 => IoIh, 6 => IoIhIl = The blocking input (3) operate on function Z< or IR> as programmed 0 => Ir, 1 => Z, 2 => Z+Ir 5025 tfres The reset after tripping of the relays associated to the time delayed elements can take place: (A) automatically (M) manually. 0 => Man, 1 => Aut 6000 I> Instantaneous element of low-set overcurrent ti> As above, time delayed element I>> Instantaneous element of high-set overcurrent ti>> As above, time delayed element O> Instantaneous element of low-set earth fault element to> As above, time delayed element Is First unbalance element (time delayed) Is As above, second unbalance element Z< Under impedance time delayed element Ir> Reverse power time delayed element tbf Breaker Failure function operates TRIP STATUS 7000,0 I> Low-set overcurrent instantaneous element 0 => No Trip, 1 => Trip 7000,1 ti> Low-set overcurrent time delayed element 0 => No Trip, 1 => Trip 7000,2 I>> High-set overcurrent instantaneous element 0 => No Trip, 1 => Trip 7000,3 ti>> High-set overcurrent time delayed element 0 => No Trip, 1 => Trip 7000,4 O> Low-set earth fault instantaneous element 0 => No Trip, 1 => Trip 7000,5 to> Low-set earth fault time delayed element 0 => No Trip, 1 => Trip 7000,12 1Is Unbalance current 1st level instantaneous element 0 => No Trip, 1 => Trip 7000,13 t1is Unbalance current 1st level time delayed element 0 => No Trip, 1 => Trip 7000,14 2Is Unbalance current 2nd level instantaneous element 0 => No Trip, 1 => Trip 7000,15 t2is Unbalance current 2nd level delayed element 0 => No Trip, 1 => Trip 7002,15 Z< Underimpedence instantaneous element 0 => No Trip, 1 => Trip 7003,0 tz< Underimpedence time delayed element 0 => No Trip, 1 => Trip 7003,1 Ir> Reverse power instantaneous element 0 => No Trip, 1 => Trip 7003,2 tir> Reverse power time delay element 0 => No Trip, 1 => Trip 9 COMMANDS / DATETIME 8000 CMD Remote commands Commands are encoded as follows: 0 => No Command 1 => Test W/O trip 2 => Test W trip

6 Pag. 6 of DIAGNOSTIC STATUS The following bits are read only 9000,0 ALU_FLT C.P.U. ALU fault 1 => fault, 0 => no fault 9000,1 ADC_FLT Analog to Digital Converter fault 1 => fault, 0 => no fault 9000,2 E2P_FLT Non volatile memory fault 1 => fault, 0 => no fault 9000,4 KBD_FLT Keyboard fault (stuck key) 1 => fault, 0 => no fault 9000,6 DSP_FLT Display fault 1 => fault, 0 => no fault 9000,9 PRG Programming 1 => fault, 0 => no fault 9000,10 BRF BReaker Failure 1 => fault, 0 => no fault 11 - RELAY ID This word allows the host P.C. to identify the type of relay REL_ID Id of Value = 22 Notes: 1) Trip causes are coded as follow: Code Cause 0 No trip 1 I> 2 I>> 3 O> 4 1Is 5 2Is 6 Ir> 7 Z< 2) --- 3) --- 4) F => relays words are encoded as follows: each element has its own F => relays word, whose bits 0, 1, 2, 3 respectively corresponds to output relays R4, R3, R2, R1. Bits are ignored by the unit. 5) 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.