Protection Relays. U-MLEs-PLv. Ultra Line. DC SUBSTATION PROTECTIVE RELAY (double voltage Line Test) 32, 45, 49, 64, 76, 79, 80

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1 Ultra Line DC SUBSTATION PROTECTIVE RELAY (double voltage Line Test) 3, 45, 49, 64, 76, 79, 80 D.C. Feeder protection relay with setting parameters programmable locally or via serial communication. Suitable for protection of D.C. feeders with High-Speed DC Breakers, for railway application. The relay measures the Line current and voltage through one current transducer and one voltage transducer. The transducers (type MHCO and MHIT) are galvanically insulated. Via fiber optic and have the following measuring ranges: Line voltage : (0 )Vn Line current : (0 0)In Insulation voltage 0kVac min. Real time measurements of primary input values can be read continuously both from the display and via ports communication. Relay settings can be done via the front and via rear serial communication. Pannel The associated Circuit Breaker can be controlled via the frontal keyboard and via serial communication. Settings, events and oscillographic recordings are stored in a non-volatile memory (E PROM). Besides the normal Watchdog and Powerfail functions, a comprehensive program of self-test and self diagnostic provides: Diagnostic and functional test with checking of programroutines and memory contents, running every time the auxiliary power supply is switched on. Dynamic functional test running during normal operation. Complete Test activated by the keyboard or via the communication bus. Any internal fault detected is indicated by a fault message on the display and by de-energization of associated I.R.F. output relay. The relay is available in three different executions: Flush mounting. Surface mounting. 9 Rack mounting.

2 Protective Functions Thermal image protection of the Cable/Line 4 Overcurrent levels Forward/Reverse programmable Current Step level with di/dt dependance Rate of rise level Impedance monitoring level with di/dt dependance Current monitoring level with di/dt dependence Frame Fault Current and Voltage monitoring levels 4 Shot Automatic Reclosure Overvoltage levels Undervoltage levels Automatic programmable Line Test Energy counter pulse C/B Lock Remote Trip Control Trip circuit supervision Associated Circuit Breaker control (OPEN / CLOSE) Breaker failure protection Breaker interruption energy i t Recording Two complete setting programs switchable locally or remotely Blocking input and Blocking output for pilot wire selectivity coordination and intertripping scheems Event Recording (last 00 events) Trip Recording (last 0 trips) complete with cause of tripping and values of the input quantities at the moment of trip Oscillographic recording of input quantities Communications Modbus RTU, Modbus RTU on TCP-IP and IEC communication protocols RS3 communication port on Front Face RS485 or RJ45 (optional) communication port on Back Panel Synchronisation with other relays (resolution ms) CanBus line for control of slave I/O Expansion modules Technical Characteristics Graphic Display (8x64 dots) 4 LEDS for: Power on/internal relay fault, Trip / alarm, Trip circuit fault 6 Output relays totally user programmable 4 Digital inputs user programmable Mounting Module box, totally draw-out execution IP44 protection case (on request IP54) Totally draw-out execution Power Supply Ratings Type : 4V(-0%) / 0V(+5%) a.c. - 4V(-0%) / 5V(+0%) d.c. Type : 80V(-0%) / 0V(+5%) a.c. - 90V(-0%) / 50V(+0%) d.c. Software MSCom Program interface for device management Accessories High-Voltage Current/Voltage measuring Transducer with Fiber Optic output : Type MHCO-T/V-I High-Voltage Current measuring Transducer with Fiber Optic output : Type MHCO-T-I. High-Voltage Voltage measuring Transducer with Fiber Optic output : Type MHCO-T-V Voltage measuring reciver with fiber optic input and 3 Analogic outputs : Type MHCO-R-V Current measuring reciver with fiber optic input and 3 Analogic outputs : Type MHCO-R-I Input/Output Expansion Module: UX Digital Inputs + 4 Outputs Relay UX4DI - 4 Digital Inputs UX4DO - 4 Outputs Relay Line Test Contactor Line Test Resistor Rail Earthing Contactor Other protection Relay SCADA and Communication systems

3 3 Real Time Measurements I = Current V = Voltage P = Power +Wh, = Exported Energy -Wh, = Imported Energy F49 (T>): Thermal Image element with prealarm Temperature prealarm Continuous admissible current Time constant F - 67/50/5 (I>): st Overcurrent Element F - 67/50/5 (I>): nd Overcurrent Element 3F - 67/50/5 (3I>): 3rd Overcurrent Element 4F - 67/50/5 (4I>): 4th Overcurrent Element F - (DI): st DI Element Minimum di/dt level to start DI : Tal = (0 00)%Tn : Is = (0.5.5) : Kt = ( 600)min step %Tn step 0.0 step 0.0min : Is = (0. 4)In step 0.0In : ts = (0.0 00)s step 0.0s : Is = (0. 4)In step 0.0In : ts = (0.0 00)s step 0.0s : Is = (0. 0)In step 0.0In : ts = (0.0 00)s step 0.0s : Is = (0. 0)In step 0.0In : ts = (0.0 00)s step 0.0s : DI = ( )A step 0A : di = (4 400)A/ms step A/ms : tdi = (0 500)ms step ms Detection reset time delay : tdi = (0 00)ms step ms F - (DI): st DI Element Minimum di/dt level to start DI : DI = ( )A step 0A : di = (4 400)A/ms step A/ms : tdi = (0 500)ms step ms Detection reset time delay : tdi = (0 00)ms step ms

4 4 F - (di/dt): st Current Rate of Rise Element F - (di/dt): nd Current Rate of Rise Element Rapp: Impedance monitoring with di/dt dependence Arc Voltage Internal Resistance Total Resistance of the circuit Internal Inductance Total Inductance of the circuit Resistance trip level Limit value of di/dt Iapp: Current monitoring with di/dt dependence Current trip level when di/dt = 0 Current trip level when di/dt ³ [g] Limit value of di/dt Drop-out percentage : G = (4 400)A/ms : tg = ( 500)ms : G = (4 400)A/ms : tg = ( 500)ms step A/ms step ms step A/ms step ms : Va = (0 800)V : Ri = (0 0.50)W step V step 0.00W : Rt = (0.00.5)W step 0.00W : Li = ( )H step 0.00H : Li = ( )H step 0.00H : R* = (0 00)W step 0.0W : g = (0 500)A/ms step A/ms : g = (0 00)ms step ms : Ia = ( )A step 0A : I* = ( )A step 0A : g = (30 500)A/ms step A/ms : Res = (80 00)%Iapp step %Iapp : tr = (0 5)s step 0.0s F - 64 (Ig): st Frame Fault Element Current setting range : Is = (0. 4)Ign step 0.0Ign Voltage setting range : Us = (0.0 )Ugn step 0.0Ugn : ts = (0.0 00)s step 0.0s F - 64 (Ig): nd Frame Fault Element Current setting range : Is = (0. 4)Ign step 0.0Ign Voltage setting range : Us = (0.0 )Ugn step 0.0Ugn : ts = (0.0 00)s step 0.0s

5 5 RCL: Automatic Reclosure Number of Reclosure Reclaim time : ShN = / / 3 / 4 : tr = ( 00)s step s Time first reclosure : t = (0. 000)s step 0.s Time second reclosure : t = (0. 000)s step 0.s Time third reclosure : t3 = (0. 000)s step 0.s Time fourth reclosure : t4 = (0. 000)s step 0.s LT: Automatic Line Test (Double Voltage Line test) Number of Test Minimum residual voltage downstream : TestN = 0 / / 3 / 4 : Vv< = (0 )Vn step 0.00Vn Minimum residual voltage upstream : Vm< = (0 )Vn step 0.00Vn Minimum residual resistance : RR< = (0 500)W step W Minimum line voltage : VFast = (0.5 )Vn step 0.Vn Waiting time after C/B closing : tp = (0 30)s step s Duation of the Line Test : tt = ( 0)s step s Wait time between consecutive tests : tcy = ( 60)s step s Wait time to start recl.after succes fine test : tw = (0 0)s step s F - 59 (U>): st Overvoltage Element : Us = (0.5.5)Un step 0.0Un : ts = (0 650)s step s F - 59 (U>): nd Overvoltage Element : Us = (0.5.5)Un step 0.0Un : ts = (0 650)s step s F - 7 (U<): st Undervoltage Element : Us = (0. )Un step 0.0Un : ts = (0 650)s step s F - 7 (U<): nd Undervoltage Element : Us = (0. )Un step 0.0Un : ts = (0 650)s step s Wi: Circuit Breaker Energy Maintenence : Ii = (0. 99)In step 0.In Conventional interrupption current : Wi = ( 9999) step RT: Remote Trip : ts = (0 0)s step 0.0s Wh: Energy Counter Pulse Energy level : WpP = (0 000)kW step 0kW Pulse duration : Pulse = (0. )s step 0.0s CB-L: C/B Lock Breaker Failure Element Alarm time delay : tbf = ( )s step 0.0s

6 6 (Example with MHCO Transducer) R PL + - LINEE LINEA FRAME-TO-GROUND VOLTAGE MONITORING INPUT FRAME-TO-GROUND CURRENT MHCO-TV MHCO-TVI MONITORING INPUT MHCO-RV MHCO-R-I MHCO-R-V 3 4 (4) (4) (8) (9) POWER SUPPLY ALIM. AUSILIARA. OPTION OPTION In 0In _ MS-SCE387-R0 = ULTRA D.C. Feeder Manager Relay POWER TRIP ON OFF BPU R R R3 R4 R5 FRONT - RS3 R6 RS485 CAN R R R3 R4 R5 R6 D D D3 D4 ETHERNET A(S+) B(S-) C C H L RJ N.O. 34 N.C TRIP COIL SUP. (5) OUTPUT RELAY RELE' DI USCITA DIGITAL INPUTS INGRESSI DIGITALI RS485 AI MODULI AGGIUNTIVI TO EXPANSION MODULE RJ45 (ModbusOnTCP) RJ45 (Serial on Ethernet) RJ45 (IEC6850) RS485 (Modbus RTU) Typical Characteristics Accuracy at reference value of influencing factors Input Averange power supply consumption Output relays % FS for measurements % +/- 0ms for times 0 0 ma < 0 VA rating 5A; Vn = 380V A.C. resistive switching = 00W (380V max) make = 30A (peak) 0.5 sec. break = 0.3A, 0Vcc L/R = 40ms ( op.) Order code - Example : Power Supply Configuration R (4-5) = Type = N.O. = Type = N.C. st Expansion module = None = UX0-4 3 = 4DI 4 = 4DO nd Expansion module = None = UX0-4 3 = 4DI 4 = 4DO Communication Protocol = ModbusRTU (standard) = Modbus TCP-IP 3 = IEC6850 The performance and the charecteristics reported in this document are not binding and can modified ant any moment without notice. Microelettrica Scientifica S.p.A Buccinasco (MI) - Via Lucania, Italy Tel Fax sales.relays@microelettrica.com