= Automatic Load Shed = LogicLab RTEMS-base Automatic Load Shed = Hardware technical data = = Power Supply = Power supply voltage: 110V DC ± 20% * Medium power: 20W * Voltage dips and short interruptions Insensitive to 100% of Vaux for 50 ms (min) Insensitive to 50% of Vaux for 100ms (min) = Dimensions = * Height: 3U * Width: 19” * Depth: 34cm = Voltage inputs = * 4 isolated voltage input channels * 6 inputs on 3 voltage channels with fullscale 100V (M2) * 1 inputs on 1 voltage channel with fullscale 400V (M1) * Dielectric strength 3000V DC (1 min) * Rated Voltage (Vn) M1: 57Vrms 100Vrms 400Vrms * Rated Voltage (Vn) M2: 57Vrms 100Vrms * Operating range: 0.01 ÷ 1.6 Vn * Rated voltage selection (Vn): software * Frequency Range: 10 ÷ 130 Hz * Permanent overload capability: 1.5 Vn * Transient overload capability - not measurable(<10s): 2Vn * Power dissipation: <1VA @Vn = 400V <0,1VA @Vn = 100V * Accuracy: * RMS value: ±0,001 Vn * Voltage rate: ±0,002 Vn/S * Frequency: ±0,002 Hz @ Vn * 0,01 Hz @ V>0,3VnVn * 0,02 Hz @ V<0,3Vn * Frequency rate: ±0,002 Hz/s = Alarms (digital outputs) = * 15 Relays * Out of order * 81/81R Threshold 1 * 81/81R Threshold 2 * 81/81R Threshold 3 * 81/81R Threshold 4 * 27/59/27R Threshold 1 * 27/59/27R Threshold 2 * Stop threshold Min/Max voltage and/or voltage imbalance * Stop threshold maximum frequency difference * 27/59/27R/81/81R Threshold 1 * 27/59/27R/81/81R Threshold 2 * 81/81R Threshold 3 and/or 4 * General alarm * Relay available on connector C1 * Relay available on connector C2 * Dielectric strength 3300V DC (1 min) * Rated voltage: 110V * Rated current: 5A * Maximum Switching Capacity (L/R=40ms): 0,5A @110V * Endurance (mechanical): ?10e7 = Digital inputs = * 2 isolated inputs * Input signal close status HV switch (Red line) * Input signal close status HV switch (Green line) * Dielectric strength 33000V DC (1 min) * Threshold voltage: 60V ± 10% * Input Voltage (max): 140V * Time resolution: 1 ms = Current outputs = * 4 current loop transmitters * Dielectric strength 33000V DC (1 min) * Current range: 4-20mA or ±5mA software selectable * Accuracy: <0,5% * Transient: <200ms * Maximum load: * <2K? @ ±5mA * <1K? @ 4÷20mA = Communication = * HMI with 4 lines display and keypad * 16 LED * Local and remote interface * Ethernet 10/100 BASE-TX with auto MDI/MDI-X * Ethernet 100BASE-FX (SC) - optical link * Configurable as knot of a net LAN/WAN * 1 RS232 front side (19.200 baud fixed) * 1 RS232 back side (up to 115.200 baud) * Remote connection with analog modem (not included) * Isolated comunication port (Ethernet: 1500Vrms – Serials: 2500 Vrms) * Field connection with 50 pins rectangular connectors = Customizing = * Power Supply with different input voltage * Different full-scales on voltage inputs on client demand * Up to 6 digital inputs available for custom application * 24V digital input with threshold 18V ± 10% * Custom range for current outputs * HMI multi functions * Additional Ethernet port 10/100BASE-TX backside * ST connector for ethernet 100BASE-FX optical link * Configuration parameters and thresholds are modifiable at the request within the limits of the device * Integrated WebServer for parameterization with Internet Browser * FTPserver for record download * Different range for recording time * AC digital input * Optional relay outputs * Different logical assignments to alarm = Standards and specifications compliance = * IEC 61000 – 4 – 2 (Level 3) * IEC 61000 – 4 – 3 (Level 3) * IEC 61000 – 4 – 4 (Level 3) * IEC 61000 – 4 – 5 (Level 4) * IEC 61000 – 4 – 6 (Level 3) * IEC 61000 – 4 – 8 (Level 5) * IEC 61000 – 4 – 10 (Level 3) * IEC 61000 – 4 – 12 (Level 3) * IEC 61000 – 4 – 16 (Level 4) * IEC 61000 – 4 – 17 (Level 3) * IEC 61000 – 4 – 29 (Level 3) * ENEL DV938 * ENEL REMC01 * ENEL REMC02 * ENEL RMEC01 * ENEL RCLI01 * CEI 45-5 * CEI 70-1 IP30 (front) IP20 (case) * COMTRADE standard IEEE Std C37.111-1991 = Software technical data = = Parameterization and device management software - SpyEAC = * Communication interface selection (RS232, UDP, TCP, modem setup) * Software access configuration and folder management * Voltage input full scales setup * Device, Substation, voltage input labelling * Full TCP/IP Ethernet configuration parameters * Backside RS232 throughput configuration * Operating mode selection (M1/M2) * Trip and stop protection threshold setup * Output current setup * Digital input, relay output, protection status * Recording time setup (Pre-trigger time, fault time, post-fault time) * Memory configuration setup (circular buffer or full-fill buffer) * Recording extension setup (disable, on fault time, on post-fault time) * Self-diagnostic device state * Reset and trigger command from PC * Realtime viewing tools (analog and measure waveform, rms measure, statistic) * Automatic download scheduler * Firmware update wizard * Recording management (Id, Date and time, Length, Trigger condition with user label) * Easy-To-Use Recording management (single, selected, all recordings) * Device parameterization file management tools (off-line editing, default file, download file) * Threshold M1 mode * Trip threshold - frequency (ANSI 81) ::Threshold available: 4 ::Range: 45÷55Hz @50Hz rated frequency - 55÷65Hz @60Hz rated frequency ::Step: 50mHz ::Enable: included/excluded ::Periods of measurement: 4÷16 ::Periods selection: software ::Trip delay time: ?100ms ::User trip delay time: 0,1÷60s ::Step: 50ms * Trip threshold - Frequency rate (ANSI 81R) ::Threshold available: 4 ::Range: -5Hz/s ÷ +5Hz/s ::Step: 100mHz/s ::Logical operator with 81: AND/OR ::Enable: included/excluded ::Periods of measurement: 4÷16 ::Periods selection: software ::Trip delay time: ?250ms ::User trip delay time: 0,1÷60s ::Step: 50ms * Stop threshold - Min/Max voltage ::Threshold available: 3 ::Range: 0,1÷1,4Vn ::Step: 0,01Vn ::Enable: included/excluded ::Min/Max selection: software ::Stop delay time: ?50ms ::User hold time: 0,1÷60s ::Step: 50ms * Threshold M2 mode * Trip threshold - frequency (ANSI 81) ::Threshold available: 4 ::Range: 45÷55Hz @50Hz rated frequency - 55÷65Hz @60Hz rated frequency ::Step: 50mHz ::Enable: included/excluded ::Periods of measurement: 4÷16 ::Periods selection: software ::Trip delay time: ?100ms ::User trip delay time: 0,1÷60s ::Step: 50ms * Trip threshold - Frequency rate (ANSI 81R) ::Threshold available: 4 ::Range: -5Hz/s ÷ +5Hz/s ::Step: 100mHz/s ::Logical operator with 81: AND/OR ::Enable: included/excluded ::Periods of measurement: 4÷16 ::Periods selection: software ::Trip delay time: ?250ms ::User trip delay time: 0,1÷60s ::Step: 50ms * Trip threshold - Voltage (ANSI 27/59) ::Threshold available: 2 ::Range: 0,5÷1Vn ::Step: 0,01Vn ::Enable: included/excluded ::Trip delay time: ?50ms ::User trip delay time: 0,1÷60s ::Step: 50ms * Trip threshold - Voltage rate (ANSI 27R) ::Threshold available: 2 ::Range: -0,2V/s ÷ +0,2V/s ::Step: 0,0005Vn/s ::Logical operator with 27: AND/OR ::Enable: included/excluded ::Time of measurement: 80÷200ms ::Time setup: software ::Trip delay time: ?120ms ::User trip delay time: 0,1÷60s ::Step: 50ms * Stop threshold - Min/Max voltage ::Threshold available: 3 ::Range: 0,1÷1,4Vn ::Step: 0,01Vn ::Enable: included/excluded ::Min/Max selection: software ::Stop delay time: ?50ms ::User hold time: 0,1÷60s ::Step: 50ms * Stop threshold - Voltage imbalance :::? = max[(V4 – ?), (V8 – ?), (V12 – ?)] / ? :::with ? = (V4 + V8 + V12) / 3 ::Threshold available: 1 ::Range: 0,05÷1 ::Step: 0,05 ::Enable: included/excluded ::Stop delay time: ?50ms ::User hold time: 0,1÷60s ::Step: 50ms * Stop threshold - Maximum frequency difference :::? = max[(fV4 – fV8), (fV8 – fV12), (fV12 – fV4)] ::Threshold available: 1 ::Range: 10÷100mHz ::Step: 10mHz ::Enable: inclusa/esclusa ::Stop delay time: ?100ms ::User hold time: 0,1÷60s ::Step: 50ms = Recordings analysis software - LogOscilloEAC = * Waveform selection wizard with colours assignment * Automatic selection filters for analog and digital inputs * Decimation value for waveform preview * Dual time cursor * Time and amplitude value in time cursor position * Cursor time difference * Time and amplitude value in mouse cursor position * Windows and vertical zoom tool * Drag-and-Drop capability for waveform overlapping * Signal processing and rms waveform visualization * Signal processing and true rms waveform visualization * Signal processing and spectrum visualization * Spectrum analysis with THD * Waveform export tool for image (JPG, BMP, MetaFile, PCX, PostScript, SVG) * Waveform export tool for Acrobat Reader (pdf) * Waveform export in COMTRADE format * Samples waveform export tool for Excel = Link = = ==Product flyer=== [English: http://www.logiclab.it/Documents/Fault%20recorder%20LogicLab.pdf] [Italian: http://www.logiclab.it/Documents/BrochureOscilloperturbografo.pdf] ===Website=== [LogicLab: http://www.logiclab.it] [PowerProbe (italian site): http://www.logiclab.it/en/DV938.htm] [PowerProbe (italian site): http://www.logiclab.it/it/DV938.htm] ===RTEMS related pages=== [wiki:TBR/UserApp/LogicLab_S.r.l. LogicLab S.r.l.] [wiki:TBR/UserApp/DV938EAC_Automatic_Load_Shed DV938EAC Automatic Load Shed] ===Other LogicLab Applications=== Description: [wiki:TBR/UserApp/PowerProbe PowerProbe] Technical data: [[Digital Fault Recorder]]