1 00:00:23,678 --> 00:00:23,745 C 2 00:00:23,746 --> 00:00:23,814 CB 3 00:00:23,815 --> 00:00:23,882 CB 4 00:00:23,883 --> 00:00:23,950 CB “ 5 00:00:23,951 --> 00:00:24,019 CB “T 6 00:00:24,020 --> 00:00:24,087 CB “Ti 7 00:00:24,088 --> 00:00:24,155 CB “Tim 8 00:00:24,156 --> 00:00:24,223 CB “Timi 9 00:00:24,224 --> 00:00:24,292 CB “Timin 10 00:00:24,293 --> 00:00:24,360 CB “Timing 11 00:00:24,361 --> 00:00:24,428 CB “Timing 12 00:00:24,429 --> 00:00:24,497 CB “Timing T 13 00:00:24,498 --> 00:00:24,565 CB “Timing Te 14 00:00:24,566 --> 00:00:24,633 CB “Timing Tes 15 00:00:24,634 --> 00:00:24,702 CB “Timing Test 16 00:00:24,703 --> 00:00:24,770 CB “Timing Test” 17 00:00:24,771 --> 00:00:25,271 CB “Timing Test” 18 00:00:25,296 --> 00:00:28,924 One of the most important tests performed in CB is “Timing Test”. 19 00:00:28,949 --> 00:00:34,720 To perform a “Timing Test” it is necessary to specify three main important sections including 20 00:00:34,745 --> 00:00:43,398 1- Supplement method of bobbins, 2- Wiring type of “Binary Outputs” and 3- type of “Binary inputs”. 21 00:00:43,423 --> 00:00:53,518 The supplement method of bobbins is specified in “Power Supply” section which is set at “AMT105” by default and its value is taken from “Test Object”. 22 00:00:53,543 --> 00:01:00,440 To control the voltage applied to “Open” and “Close” bobbins, “Binary Outputs” of the device are used. 23 00:01:00,480 --> 00:01:09,720 In “Binary Output” section it is specified that which “Binary Outputs” are to be used to control “Close” and “Open” commands which is set at “Series” by default. 24 00:01:10,357 --> 00:01:18,936 In this mode, huge voltages which occur during opening and closing are divided between the two relays which prevents damage to the device. 25 00:01:18,961 --> 00:01:25,679 But if one of the “Binary Outputs” is not available, by selecting other options, it is possible to use only two “Binaries”. 26 00:01:25,703 --> 00:01:35,283 For example, by selecting “Bin1” and “Bin4” you can only use the “Binaries” 1 and 4. In this instruction, “Series” mode is used. 27 00:01:35,307 --> 00:01:42,936 “Binary Input” is used to sense when the CB is closed or open. Since there is noise in substations, 28 00:01:42,960 --> 00:01:49,140 “Binary Inputs” are set at “Wet” by default so noise is removed from the “Binary Inputs”. 29 00:01:49,164 --> 00:01:58,079 But if there is no noise in the test environment you can set the type of “Binary Inputs” at “Dry” and by changing the “Binary” type, the wiring changes as well. 30 00:01:58,104 --> 00:02:09,527 Next you need to select the test type from among “Open—Close—Open Close--…” By selecting any of them, you need to enter the time in the specified box. 31 00:02:09,551 --> 00:02:17,958 For example, in “Open” test, you need to enter “three” times in the designed fields; the first “time” is related to before command, 32 00:02:17,982 --> 00:02:26,510 the second “time” is related to the Duration which the command is kept on the bobbin and the third time is related to after command. 33 00:02:26,534 --> 00:02:35,787 In this example, the bobbin is supplied by the device and “Binary Output” and “Binary Input” are set at “Series” and “Wet” respectively. 34 00:02:35,811 --> 00:02:40,460 For “Open” test, the default time values are considered as the time values. 35 00:02:40,484 --> 00:02:44,423 Then, you need to set the wiring according to the specified picture. 36 00:02:44,447 --> 00:02:48,972 Note that by double-clicking on the picture, it is possible to magnify it. 37 00:02:57,682 --> 00:03:05,682 In this wiring, the specified connections must be set, those points that have the same name must be connected to each other, 38 00:03:21,998 --> 00:03:34,630 Close and Open bobbins must be connected to the lower end of “Binary Outputs” number 3 and 4 and finally, 39 00:03:34,668 --> 00:03:40,395 the connections of “Binary Input” must be set to receive the key contacts. 40 00:04:13,326 --> 00:04:20,198 After setting the wiring, open “Signal View” and initiate the test by selecting “Init Test”. 41 00:04:22,364 --> 00:04:29,638 In “Signal View” window, it is possible to view the voltage and current loaded from the device as well as the CB opening time. 42 00:04:29,662 --> 00:04:35,068 “Vc1+” and “Vc2+” indicate the status of the “Close” 43 00:04:35,108 --> 00:04:45,480 command control “Binary Outputs” while “Vo1+” and “Vo2+” are indicators of the status of the “Open” command control “Binary Outputs”. 44 00:04:45,504 --> 00:04:49,903 “L1”, “L2” and “L3” indicate the status of the CB contacts: 45 00:04:49,927 --> 00:04:56,287 Three colored lines mean that the CB contacts are closed while no lines suggest the opposite. 46 00:04:56,311 --> 00:05:03,529 “AUX Open” and “AUX Close” signals are used to determine the origin time for measuring the performance time. 47 00:05:04,053 --> 00:05:13,697 As mentioned before, the CB performance is measured since when the voltage of the “Binaries” 7 and 8 exceeds the “Threshold” specified in “Test Object”. 48 00:05:14,395 --> 00:05:19,009 Moreover, the test results are available in “Summary of Result” section. 49 00:05:19,096 --> 00:05:28,536 In this section, the peak current and “Steady State” current and in the “Open” table the opening time of each contact is provided separately. 50 00:05:28,560 --> 00:05:35,647 Note that the evaluation of these times is done in accordance with the “Opening Time” and “Opening Sync” specified in “Test Object”. 51 00:05:35,671 --> 00:05:43,414 If the operating time is somewhere within the range specified in “Test Object” the test “Passes”, otherwise it “Fails”. 52 00:05:43,438 --> 00:05:49,252 For adding the results to the report, you can do so by pressing “Add to Report”. Also, 53 00:05:49,276 --> 00:05:57,300 if you wish to add some specific parts to the report, or delete and edit the report, you need to use the “Add to Report” cog. 54 00:05:57,324 --> 00:06:07,602 By clicking on this cog, you can view the items that can be added to the report. If you do not need each of them, you can unselect by unchecking them. 55 00:06:07,626 --> 00:06:19,582 Note that after performing a test the results are not automatically added to the report and it is necessary to add the results to the report by “Add To Report” before “Clearing” the test. 56 00:06:19,606 --> 00:06:23,907 In the following, some points about the test are provided: 57 00:06:24,296 --> 00:06:28,699 The first point is that if you wish to use only one voltage group, 58 00:06:28,723 --> 00:06:36,671 first you need to press “Init Test” and then check “Don’t Change Hardware Setting” and by going to the “Hardware Configuration”, 59 00:06:36,695 --> 00:06:46,765 activate your intended voltage phases and deactivate the others in the “Analog Output” tab and perform the test using only the voltages of the intended group. 60 00:06:46,789 --> 00:06:53,511 For example, here voltage group “A” is activated and voltage group “B” is deactivated. 61 00:06:53,535 --> 00:07:05,029 The second point is that when you enter “150” milliseconds as the command time, this means that the command voltage is kept on the bobbin for “150” milliseconds 62 00:07:05,069 --> 00:07:11,504 If you check “Command Termination Trigger” option and enter “10” milliamps as the “Minimum Time”, 63 00:07:11,528 --> 00:07:19,035 the command is removed from the CB, “10” milliseconds after its operation. To view this item, “Close” test is selected. 64 00:07:19,059 --> 00:07:26,431 To initiate the test, “Init” is pressed and test starts. After that, you can see that because of checking this option, 65 00:07:26,463 --> 00:07:32,876 unlike the previous case, “10” milliseconds after the CB operation the command is removed. 66 00:07:32,900 --> 00:07:41,685 The third point is that if the current needed to exciting the bobbin is more than “2.5” amps, it is necessary to use an external source. 67 00:07:41,709 --> 00:07:49,137 In this case, check the “External” option and set the new wiring and start the test after pressing “Init Test”. 68 00:07:49,162 --> 00:07:54,741 If you are using an external source to provide the voltage of the bobbins, to better protect the bobbins, 69 00:07:54,766 --> 00:08:06,355 put a glass relay with the “Binary Outputs” in series so that if something unexpected happened to the “Binary Outputs” which made them no longer able to disconnect the voltage applied to the bobbins, 70 00:08:06,379 --> 00:08:14,438 the CB is not damaged and in this way you can have more control on connecting and disconnecting the supply applied to them. 71 00:08:14,463 --> 00:08:20,935 In using a glass relay, since the voltage of the binaries number 7 and 8 is used as the time origin, 72 00:08:20,959 --> 00:08:27,402 delay of the glass relay has no effect on the test result and this delay is deleted by the software. 73 00:08:27,426 --> 00:08:32,654 Also, when testing the CB time test, it is necessary to know the current loaded by the CB. 74 00:08:32,678 --> 00:08:38,263 A “100” milliohm resistance is considered for this and when the current flow, 75 00:08:38,287 --> 00:08:45,445 a voltage is measured by the “Binary Input” 10 and by dividing the voltage by the resistance, 76 00:08:45,469 --> 00:08:53,164 “Coil Current” is calculated by the software and displayed in “Coil Current” section in “Signal View”. 77 00:08:54,283 --> 00:09:08,634 The third point is that “Error Other” while performing a test means that there is an issue with the connections or the high current loaded by the bobbins in a way that the device is unable to provide needed current. 78 00:09:08,681 --> 00:09:14,339 Therefore, in case of encountering this error, check the “Actual Current” value in “Signal View”. 79 00:09:14,363 --> 00:09:23,713 If the “Actual Current” reaches “2.5” amps and then the test is stopped, it means that the device is not capable of injecting that current and an external source should be used. 80 00:09:23,744 --> 00:09:34,886 If the time recorded in the table is “-1ks”, this means that the CB has been “Open” before performing the test or it has been closed for the “Close” test of the CB. 81 00:09:34,918 --> 00:09:40,240 In this case, other than the wiring, you need to check whether the CB is closed or open.