1 00:00:23,786 --> 00:00:23,830 I 2 00:00:23,831 --> 00:00:23,875 In 3 00:00:23,876 --> 00:00:23,920 Int 4 00:00:23,921 --> 00:00:23,965 Intr 5 00:00:23,966 --> 00:00:24,010 Intro 6 00:00:24,011 --> 00:00:24,055 Introd 7 00:00:24,056 --> 00:00:24,101 Introdu 8 00:00:24,102 --> 00:00:24,146 Introduc 9 00:00:24,147 --> 00:00:24,191 Introduci 10 00:00:24,192 --> 00:00:24,236 Introducin 11 00:00:24,237 --> 00:00:24,281 Introducing 12 00:00:24,282 --> 00:00:24,326 Introducing 13 00:00:24,327 --> 00:00:24,371 Introducing “ 14 00:00:24,372 --> 00:00:24,416 Introducing “D 15 00:00:24,417 --> 00:00:24,461 Introducing “Di 16 00:00:24,462 --> 00:00:24,506 Introducing “Dis 17 00:00:24,507 --> 00:00:24,551 Introducing “Dist 18 00:00:24,552 --> 00:00:24,596 Introducing “Dista 19 00:00:24,597 --> 00:00:24,642 Introducing “Distan 20 00:00:24,643 --> 00:00:24,687 Introducing “Distanc 21 00:00:24,688 --> 00:00:24,732 Introducing “Distance 22 00:00:24,733 --> 00:00:24,777 Introducing “Distance” 23 00:00:24,778 --> 00:00:24,822 Introducing “Distance” 24 00:00:24,823 --> 00:00:24,867 Introducing “Distance” r 25 00:00:24,868 --> 00:00:24,912 Introducing “Distance” ro 26 00:00:24,913 --> 00:00:24,957 Introducing “Distance” roo 27 00:00:24,958 --> 00:00:25,002 Introducing “Distance” room 28 00:00:25,003 --> 00:00:25,047 Introducing “Distance” room, 29 00:00:25,048 --> 00:00:25,092 Introducing “Distance” room, 30 00:00:25,093 --> 00:00:25,137 Introducing “Distance” room, P 31 00:00:25,138 --> 00:00:25,182 Introducing “Distance” room, Pa 32 00:00:25,183 --> 00:00:25,228 Introducing “Distance” room, Par 33 00:00:25,229 --> 00:00:25,273 Introducing “Distance” room, Part 34 00:00:25,274 --> 00:00:25,318 Introducing “Distance” room, Part 35 00:00:25,319 --> 00:00:25,363 Introducing “Distance” room, Part I 36 00:00:25,364 --> 00:00:25,408 Introducing “Distance” room, Part II 37 00:00:25,409 --> 00:00:25,453 Introducing “Distance” room, Part III 38 00:00:25,454 --> 00:00:25,498 Introducing “Distance” room, Part III: 39 00:00:25,499 --> 00:00:26,274 Introducing “Distance” room, Part III: 40 00:00:26,483 --> 00:00:30,657 To simplify drawing the “Zone”s you can use “Predefined Shapes”. 41 00:00:30,682 --> 00:00:35,608 In this section, some patterns are predefined for three types of characteristics. 42 00:00:35,633 --> 00:00:38,886 Circle is used to draw “MHO” characteristic curves. 43 00:00:38,911 --> 00:00:45,296 In “Forward Reach” field, the maximum forward protective area is specified which is in “R” positive direction. 44 00:00:45,321 --> 00:00:52,518 If the characteristic is in a way that covers a part of the back of the relay, by using the “Offset” field, you can apply this item as well. 45 00:00:52,543 --> 00:00:57,620 About the mentioned subject, note that applying offset does not cause “Forward Reach” to change. 46 00:00:57,645 --> 00:01:04,976 Moreover, it is also possible to apply negative offset, which causes the characteristic to distance from the origin of the coordinates. 47 00:01:05,001 --> 00:01:13,339 By entering the angle in the “Angle” field, the center of the circle moves in counter clockwise direction as much as the value mentioned in this field. 48 00:01:13,364 --> 00:01:25,156 For example, if “5” and “1” are entered as “Forward Reach” and “Offset” respectively, in “0” degree you can see that “R=5 to “R=-1” is the area that is covered. 49 00:01:25,180 --> 00:01:33,137 Now, if “45” is entered as the angle, you see that the center of the circle rotates as much as “45” degrees. 50 00:01:33,196 --> 00:01:45,422 In this case, the radius and center of the circle can be obtained using “ " and “ ” relations respectively. 51 00:01:45,446 --> 00:01:49,001 “Polygon” characteristic are made of four line cartesians. 52 00:01:49,025 --> 00:01:54,887 To change any of the sides, first you need to select the intended line and enter the characteristics. 53 00:01:54,911 --> 00:02:00,361 Explanations for this matter are exactly the same as the explanations provided for “Line Cartesian”. 54 00:02:00,385 --> 00:02:02,867 The last characteristic is “Lens/Tomato”. 55 00:02:02,891 --> 00:02:07,782 The use of “Forward Reach”, “Offset” and “Angle” fields is the same as “MHO” characteristic. 56 00:02:07,806 --> 00:02:16,694 Parameters “A” and “B” stand for “Width” and “Forward Reach” respectively and in “A/B” field the proportion of these two is entered. 57 00:02:16,718 --> 00:02:27,431 If “A/B” is bigger than “1”, smaller than “1” or equalls “1”, the characteristic will be in “Tomato” form, “Lens” form and “Mho” form respectively. 58 00:02:27,455 --> 00:02:36,793 If “A/B” is selected in the “Type” field, by changing the “Forward Reach”, the proportion of “A/B” remains the same and the “Width” changes 59 00:02:36,817 --> 00:02:44,058 For example you can see that if “A/B” equals “0.5”, by changing “Forward Reach” the value of “Width” changes. 60 00:02:44,082 --> 00:02:51,972 However, if “Width” is selected as “Type”, by changing “Forward Reach”, you see that the “Width” remains the same and “A/B” changes. 61 00:02:51,996 --> 00:03:02,414 Practically this characteristic curve is made of “2” circles and the radius of these circles is shown as the “R” formula, the center of the first circle is shown as “M1”, 62 00:03:02,450 --> 00:03:10,592 and the center of the second circle is in the form of “M2” where “α”, “β” and “ϕ” are as illustrated. 63 00:03:10,616 --> 00:03:14,505 In the end, some points about this section is mentioned: 64 00:03:14,529 --> 00:03:19,461 By selecting any element, any information entered earlier will be deleted. 65 00:03:19,485 --> 00:03:23,258 By checking “Invert all” option, the selected area inverses. 66 00:03:23,282 --> 00:03:28,740 This means that if this option is checked and “1” second is entered as the trip time, 67 00:03:28,764 --> 00:03:36,165 on the test page you can see that inside the curve is “NO TRIP” while outside the curve is “Tripping” area. 68 00:03:36,189 --> 00:03:41,302 By clicking on “Clear” on this page, all information will be deleted. 69 00:03:41,326 --> 00:03:46,491 After specifying the zone, the type of the zone should be specified in “Type” field. 70 00:03:46,515 --> 00:03:58,873 If “Tripping” is selected, its trip time and time and impedance tolerances should be entered in “Zone Details” section and for changing any tolerance, its checkbox should be checked and then the changes can be made. 71 00:03:58,897 --> 00:04:02,973 Generally, “Starting” zones are very big zones which contain “Tripping” 72 00:04:02,998 --> 00:04:12,233 zones and the condition under which the relay performs a trip is that the fault impedance is located not only in the “Tripping” area but also inside the “Starting” area. 73 00:04:12,257 --> 00:04:21,290 “Extended” zones are those that are activated by receiving a specific signal from the network and usually cause the zone cover a bigger part of the line. 74 00:04:21,314 --> 00:04:27,587 In “Fault Loop” field you can specify the type of faults that the defined zone can be used for. 75 00:04:27,611 --> 00:04:34,609 To specify that a zone is to be used only for two-phase faults you need to select “LL” in “Fault Loop” field 76 00:04:34,633 --> 00:04:41,133 and check “LL Fault Group Exclude L1L2L3 fault Type” in “System Setting”. 77 00:04:41,157 --> 00:04:45,299 You can use “Active” column to activate or deactivate a zone. 78 00:04:45,323 --> 00:04:50,210 “Up” and “Down” options at the top of the table are used to move the defined zones. 79 00:04:50,234 --> 00:05:01,090 At the bottom of the page there is a box including ground coefficients by using which it is possible to specify a different single-phase ground coefficient for every zone. However, 80 00:05:01,114 --> 00:05:04,985 this section is in progress and is not ready for use yet.