1 00:00:23,687 --> 00:00:23,751 “ 2 00:00:23,752 --> 00:00:23,815 “T 3 00:00:23,816 --> 00:00:23,880 “Tr 4 00:00:23,881 --> 00:00:23,944 “Tra 5 00:00:23,945 --> 00:00:24,008 “Tran 6 00:00:24,009 --> 00:00:24,073 “Trans 7 00:00:24,074 --> 00:00:24,137 “Transi 8 00:00:24,138 --> 00:00:24,202 “Transie 9 00:00:24,203 --> 00:00:24,266 “Transien 10 00:00:24,267 --> 00:00:24,331 “Transient 11 00:00:24,332 --> 00:00:24,395 “Transient” 12 00:00:24,396 --> 00:00:24,459 “Transient” 13 00:00:24,460 --> 00:00:24,524 “Transient” s 14 00:00:24,525 --> 00:00:24,588 “Transient” st 15 00:00:24,589 --> 00:00:24,653 “Transient” sta 16 00:00:24,654 --> 00:00:24,717 “Transient” stat 17 00:00:24,718 --> 00:00:24,781 “Transient” state 18 00:00:24,782 --> 00:00:24,846 “Transient” state 19 00:00:24,847 --> 00:00:24,910 “Transient” state t 20 00:00:24,911 --> 00:00:24,975 “Transient” state ty 21 00:00:24,976 --> 00:00:25,039 “Transient” state typ 22 00:00:25,040 --> 00:00:25,104 “Transient” state type 23 00:00:25,105 --> 00:00:25,168 “Transient” state type: 24 00:00:25,169 --> 00:00:25,669 “Transient” state type: 25 00:00:25,694 --> 00:00:32,426 As mentioned before, one of the features of Vebko device and software is relay testing in transient state. 26 00:00:32,451 --> 00:00:35,600 To easily access the windows needed for this “State Type”, 27 00:00:35,625 --> 00:00:44,241 a “Layout” named “Default Layout for Transient” is designed specifically for this state which is located in the “Windows” menu. This layout includes “Detail View”, 28 00:00:44,266 --> 00:00:52,662 “Signal View”, “Measurement View”, “Vector View” and “Impedance View” windows. Here, to have a better view of the “Detail View” window, all other windows are closed. 29 00:00:52,687 --> 00:00:59,784 When a fault occurs, the relay saves the fault information and moments before the fault as a “Comtrade” file and provides the user with this file. 30 00:00:59,829 --> 00:01:06,732 By using this information it is possible to view impedance or differential trajectory or by injecting the same transient signal, 31 00:01:06,757 --> 00:01:10,870 simulate the fault moment and test the relay performance again. 32 00:01:10,915 --> 00:01:14,375 Other than “Comtrade” file with “cfg” extension, 33 00:01:14,400 --> 00:01:23,685 there is another file with “dat” extension. These two files have the same name and for the “comtrade” file to be loaded in the software, both files must be together. 34 00:01:23,710 --> 00:01:28,604 In “Transient Setting” section, the settings related to “comtrade” file are adjusted. 35 00:01:28,629 --> 00:01:34,106 By selecting “Import Comtrade”, the “comtrade” file exported from the relay is imported and loaded. 36 00:01:34,131 --> 00:01:39,089 Moreover, a list including several “comtrade” files is located in the software. 37 00:01:39,114 --> 00:01:45,269 By selecting “Import Comtrade from List” option this list opens and a file can be selected and loaded. 38 00:01:45,294 --> 00:01:51,219 After loading a transient file, the data related to that file is loaded in the table of this section. 39 00:01:51,244 --> 00:01:54,904 In “Signal” column, name of the output of the device is specified. 40 00:01:54,929 --> 00:02:00,353 To change the outputs of this section, “Analog Out” tab in the “Hardware Configuration” page can be used. 41 00:02:00,378 --> 00:02:06,131 In “Channel” column, current or voltage signals allocated to output of the device are displayed. 42 00:02:06,156 --> 00:02:10,113 By opening the drop down field, it is possible to change the allocated signal. 43 00:02:10,138 --> 00:02:16,641 In “Scale” column, the user can determine a specific percentage of the Transient signal amplitude for injection. 44 00:02:16,666 --> 00:02:22,936 In “Min” and “Max” columns, positive and negative amplitudes of signals of “Comtrade” file are specified. 45 00:02:22,961 --> 00:02:25,888 In “Pirm.factor” and “sec.factor” columns, 46 00:02:25,913 --> 00:02:36,627 the conversion ratio of “VT”s and “CT”s is specified in relation to the “Comtrade” file and it is possible that values of these coefficients are one in some files. 47 00:02:36,652 --> 00:02:39,266 In that case, the user needs to edit them. 48 00:02:39,291 --> 00:02:46,654 For example, here “Prim.factor” is set at 1 kilovolt and by right-clicking on this column and selecting “Apply to all Voltage”, 49 00:02:46,679 --> 00:02:49,228 this value is set for other voltages as well. 50 00:02:49,253 --> 00:02:54,963 In “PS” column, it is specified that the information of “Comtrade” is primary or secondary side. 51 00:02:54,988 --> 00:03:03,791 If it is “Primary”, in “Min” and “Max” columns the secondary values are placed in “Prim.factor” and “Sec.factor” in accordance with the given conversion ratio. 52 00:03:03,816 --> 00:03:09,534 If “Secondary” is selected, in “Min” and “Max” columns, the original values of the file are placed. 53 00:03:09,559 --> 00:03:16,208 To calculate the “RMS” value of the signals of “Comtrade” file and displaying it in “Signal View”, 54 00:03:16,233 --> 00:03:25,034 first, “Calculate RMS, Phase and Other” option should be checked and then in “Setting” tab, in “Show Type” box, the “RMS” radio button is checked. 55 00:03:25,059 --> 00:03:31,160 after seeing signal's "RMS"value, "show type" goes back to the instantanous state. 56 00:03:31,185 --> 00:03:34,095 By checking “Select All Channel” in “Channel” column, 57 00:03:34,120 --> 00:03:42,826 it is possible to select all voltage and current signals existent in the “Comtrade” file for outputs of the device while if this option is unchecked, 58 00:03:42,851 --> 00:03:49,094 in the list of every output, it is possible to only select signals from the same type of output. 59 00:03:49,119 --> 00:03:55,514 For example, in “VL1-E” output, only voltage signals of the “Comtrade” file are visible. 60 00:03:55,539 --> 00:04:00,101 The reason for the existence of this option is that in some transient files, 61 00:04:00,140 --> 00:04:10,106 the unit of signals is not given in volt and ampere and the software is not able to differentiate between current and voltage and allocate it to the output of the device. 62 00:04:10,131 --> 00:04:16,596 So, it is necessary for the user to manually introduce the voltage and current signals to outputs of the device. 63 00:04:16,621 --> 00:04:27,734 If the user wishes to view the waveform of all voltage, current and digital signals existent in the “Comtrade” file in “Signal View”, he should select “Current State” from the toolbar. 64 00:04:27,759 --> 00:04:33,835 Then from the “Setting” tab in “Signal View”, he should select the signals that he wishes to view. 65 00:04:33,860 --> 00:04:35,759 But in “All State” state, 66 00:04:35,784 --> 00:04:43,621 it is only possible to view the waveform of the outputs of the device in each “State” and not the waveform of all signals in “Single View”. 67 00:04:43,646 --> 00:04:47,169 To better analyze the transient signals in “Vector View” window, 68 00:04:47,194 --> 00:04:53,523 it is possible to open up to 5 “Vector Views” and, view the vector of different signals in different times. 69 00:04:53,548 --> 00:04:59,363 Complementary description about “Vector View” window will be provided in the videos related to this window. 70 00:04:59,410 --> 00:05:08,512 If the current and voltage values allocated to the output of the device which are specified in “Max” and “Min” columns exceed the allowed injection amount of the device, 71 00:05:08,537 --> 00:05:11,817 an error message is recorded in the “Errors” section. 72 00:05:11,842 --> 00:05:21,083 By selecting the “Limit Voltage and Current of Transient File to Setting”, the amplitude of these signals is limited to the injectable amount by the device. 73 00:05:21,108 --> 00:05:25,276 The difference between this option and “Scale” is that by selecting this option, 74 00:05:25,301 --> 00:05:35,573 a part of the signal amplitude which is exceeding the allowed amount is cut but in “Scale”,only a coefficient is multiplied by signal amplitude and no part of the signal is cut. 75 00:05:35,598 --> 00:05:39,505 The name of the “Comtrade” file is written in “File Name” section. 76 00:05:39,593 --> 00:05:43,158 By right-clicking on “Prim. Factor” column or “Sec. 77 00:05:43,183 --> 00:05:47,567 Factor” and selecting “Fill Primary Secondary from Device” option, the “Prim. 78 00:05:47,530 --> 00:05:56,621 Factor” and “Sec.factor” values are entered in the “Test Object” page from “Device” block and if “Fill Primary Secondary from Comtrade File” is selected, 79 00:05:56,691 --> 00:06:00,078 the values of this column are entered from the “Comtrade” file. 80 00:06:00,112 --> 00:06:06,821 In “Sampling Rate” section, the information related to sampling frequency of the device and “Comtrade” file is specified. 81 00:06:06,846 --> 00:06:11,915 In “Original” field, the original value of the signal sampling frequency, in “Used” field, 82 00:06:11,940 --> 00:06:19,596 the value of used sampling frequency to be displayed in “Signal View” window and in “Frequency” section, the test signal frequency is specified. 83 00:06:19,621 --> 00:06:32,302 If the user wishes to apply a part of the transient waveform to the device, he can use the “Trim Time” section where its start time is specified in “Start Time” section and the end time is specified in “End Time” section. 84 00:06:32,327 --> 00:06:37,785 In this section, when the “Comtrade” file is loaded, the time value is extracted from the “Comtrade” file. 85 00:06:37,810 --> 00:06:43,315 To inject a part of the transient signal by device, first, the “Current State” option should be selected. 86 00:06:43,343 --> 00:06:51,267 Then, by activating “Cursor1” and “Cursor2” in “Setting” of the “Signal View” window, the beginning and end of the signal is specified. 87 00:06:51,323 --> 00:06:57,942 Finally by clicking on “Apply from trackbars” option, the values of “Cursors” are entered automatically. 88 00:06:58,029 --> 00:07:02,549 Also by selecting “Reset Time” option, these times reset.