3EQ Composite Housed Surge Arresters Saving Money and Space, Gaining Reliability Answers for energy. 1 A perfect Combination of Cost-Savings, Safety and Reliability 3EQ Surge Arresters: Your Reliable, Sturdy and Economic Choice 3EQ surge arresters are virtually indestructible. While their tube design provides the highest possible mechanical strength and enables them to support high bending moments, the silicone rubber insulation is ideal for outdoor applications in severe environmental conditions. No matter how tough the environmental or operating conditions may be, our 3EQ arresters assures a 100 % reliable pressure relief performance, they provide the ultimate in protection. They are break-proof and retain at least 75 % of their mechanical strength even after pressure relief. They provide the greatest stability, even in earthquakes. Reduced Space Requirements Their advantages are more than convincing, a perfect combination of cost-savings and safety for your substations. The combination of silicone rubber and fiber-glass-reinforced tube imparts enormous load carrying capacity to the structure. Thus, our 3EQ surge arresters are the perfect choice to replace existing post insulators in your substations up to voltages of 800 kV. Where space is most essential, 3EQ surge arresters can even be mounted over the transformer to support connectors without any danger to neighboring equipment. This assures maximum stability, even if the arresters should “blow out” after overloading. Pressure relief is absolutely reliable – there is no danger to equipments in the direct vicinity. Due to their unique tube design, no parts will be expelled, and the emerging arc will burn between the ends of the pressure relief device. Longevity and Reliability The 3EQ’s Silicone Rubber housings provide the best possible long-life-performance for high-voltage surge arresters. They make use of all the advantages of bonding vulcanized-on silicone rubber sheds to a fiberglass-reinforced plastic tube, providing enhanced safety and meeting every requirement. And, with their silicone rubber housings, the arresters enjoy all-round protection. The silicone rubber shield provides a reliable defense against snow, sandstorms, ozone, high-level UV radiation, sea salt, soot and acid rain in industrial regions. Only genuine silicone rubber is capable of maintaining its hydrophobic properties throughout its entire service life – and is resistant to UV radiation. The silicone rubber of the 3EQ surge arresters reliably prevents the formation of films of water or dirt. Surface currents resulting from conductive layers of accumulated dirt are eliminated. The cost-saving solution for your substation You require fewer post insulators for your installation, thereby saving you both money and space. Transformer Voltage GIS bushing transformer Surge Support arrester Transformer 3EQ as support Support Street Diagram of substation prior to 3EQ modification 2 Saved installment space Voltage transformer GIS bushing Support Street Diagram of substation with integrated 3EQ modification A lot more speaks for the efficiency of 3EQ Their dramatically reduced weight means savings right from the start – in transportation, in support structures and in installation. The weight reduction in our polymeric arresters compared with porcelain types is amazing. In fact, highvoltage arresters with composite housings are about 50 % lighter than their porcelain counterparts. This makes all the difference: Initially in terms of transportation costs. Then there is installation and commissioning – involving reduced labor costs, less complex support structures and simple hoisting gear. The cranes required can be significantly smaller – and the cost using them correspondingly lower. And there‘s another way in which they save costs – polymeric arresters don‘t need cleaning. By virtue of its hydrophobic properties, everything is so much simpler with silicone rubber throughout its entire service life. They provide numerous advantages – a gain for everyone, thanks to Siemens know-how for innovations and unsurpassed quality of manufacture. All 3EQ advantages at a glance are ■ Maximized service life ■ 100 % break-proof – reliable overload performance, no hazardous splinters even under maximum pressure: these arresters can even be installed in close proximity to costly system components ■ Safe from damage – unbreakable during transportation, installation, storms, earthquakes and immune to vandalism ■ Outstanding stability in earthquake and storm: these arresters can be used to replace post insulators ■ Use of silicone rubber – hydrophobic, resistant to pollution and to UV radiation ■ Extremely rugged – reliable in any climate and polluted environment ■ Substantially reduced weight – ease of installation with simple lifting gear ■ Complete and wide product range, special versions to order ■ Cost-effective in all respects – maximum availability – for many special application and installation needs Reduce the required space even more It‘s no problem to install our 3EQ surge arrester on top of the transformer! There is no danger to equipment, even in the direct vicinity. 3EQ as support Voltage transformer Sealing system Directional pressure relief device GIS bushing Transformer FRP rods Metal oxide blocks Glass fibre reinforced tube Street Silicone rubber housing Clearance between equipment according to technical standards 3 Choose the Appropriate Arrester In just four steps you can choose the right surge arrester: 1. First step choose the type 3EQ1, 3EQ4 or 3EQ3 from diagram 1. 2. Second step verify the maximum technical data with table 1. 3. Third step choose the surge arrester with table 2. 4. Fourth step select the suitable installation and grounding and complete the order number with table 3. Diagram 1 LD-class Long duration current impulse Max. value/A Bending Moment/kNm 5000 72 4125 5 42 2750 2100 38 1600 21 3 and 4 1200 2 and 3 850 2 500 Special application 3EQ3 Special application 3EQ4 6 Special application 12 36 52 3EQ1 72 123 145 170 245 300 362 420 550 800 Um kV Table 2 Highest voltage for equipment Standard lightning impulse withstand voltage Rated voltage Um [kV] BIL min [kV] Ur [kV] Uc [kV] LD-Cl 72.5 325 325 325 325 54 54 60 60 43 43 48 48 2 3 2 2 325 325 325 325 60 66 66 66 48 53 53 53 325 325 72 72 325 325 Continuous Line operating discharge voltage class Long duration current 2 ms Maximum values of the residual voltages at discharge currents of the following impulses Arrester type [A] 8/20 µs 5 kA [kV] 8/20 µs 10 kA [kV] 8/20 µs 20 kA [kV] 30/60 µs 0.5 kA [kV] 30/60 µs 1 kA [kV] 30/60 µs 2 kA [kV] 500 850 500 850 133 122 148 130 143 130 159 138 160 144 178 153 110 104 122 110 114 106 127 113 120 111 134 119 3EQ1 3EQ1 3EQ1 3EQ1 054 054 055 056 – – – – 1 2 1 2 P P P P B B B B 2 3 2 2 1 1 1 1 – – – – 3 2 2 3 850 500 850 850 135 163 143 149 144 175 152 158 160 196 168 176 115 135 121 127 118 140 124 130 124 147 131 136 3EQ1 3EQ1 3EQ1 3EQ1 060 066 066 066 – – – – 2 1 2 2 P P P P B B B B 3 2 2 3 1 1 1 1 – – – – 58 58 2 3 500 850 177 162 191 173 214 192 147 138 153 142 160 149 3EQ1 3EQ1 072 072 – – 1 2 P P B 2 1 – B 3 1 – 30 30 24 24 2 3 500 850 74,0 67,7 79,5 72,0 89,0 79,9 61,2 57,6 63,6 59,0 66,8 61,9 3EQ1 3EQ1 030 030 – – 1 2 S S B 2 1 – B 3 1 – 450 450 450 450 96 96 96 102 77 77 77 82 2 2 3 2 500 850 850 500 237 208 217 251 254 221 230 270 285 245 256 303 196 177 184 208 204 181 189 216 214 190 198 227 3EQ1 3EQ1 3EQ1 3EQ1 096 096 096 102 – – – – 1 2 2 1 P P P P J J J J 2 2 3 2 1 1 1 1 – – – – 450 450 450 450 102 108 108 111 82 86 86 89 3 2 3 3 850 500 850 850 230 266 244 250 245 286 259 266 272 321 288 296 196 220 207 213 201 229 213 218 211 240 223 229 3EQ1 3EQ1 3EQ1 3EQ1 102 108 108 111 – – – – 2 1 2 2 P P P P J J P P 3 2 3 3 1 1 1 1 – – – – 123 Resonant earthed 450 550 550 51 90 96 41 72 77 2 2 2 500 850 850 126 195 208 135 207 221 151 230 245 104 166 177 108 170 181 114 178 190 3EQ1 3EQ1 3EQ1 051 090 096 – – – 1 2 2 S S S B 2 1 – E 2 1 – J 2 1 – 145 550 550 550 550 111 111 120 120 89 89 96 96 2 2 2 3 500 850 500 850 274 240 296 271 294 255 318 288 329 283 356 320 227 204 245 230 235 209 254 236 247 220 267 248 3EQ1 3EQ1 3EQ1 3EQ1 111 111 120 120 – – – – 1 2 1 2 P P P P J J P P 2 2 2 3 1 1 1 1 – – – – 550 550 550 550 126 132 144 144 101 106 115 115 3 3 2 3 850 850 850 850 284 298 311 325 302 317 331 346 336 352 368 384 242 253 265 276 248 260 272 283 260 272 285 297 3EQ1 3EQ1 3EQ1 3EQ1 126 132 144 144 – – – – 2 2 2 2 P P P P P P P P 3 3 2 3 1 1 1 1 – – – – Neutral-ground arresters Um [kV] 72.5 123 Neutral-ground arresters Um [kV] Neutral-ground arresters Um [kV] 145 550 60 48 2 500 148 159 178 122 127 134 3EQ1 060 – 1 S B 2 1 – 170 650 650 650 138 138 138 110 110 110 2 2 3 500 850 850 340 298 311 366 317 331 410 352 368 282 254 265 293 260 272 307 273 285 3EQ1 3EQ1 3EQ1 138 138 138 – – – 1 2 2 P P P P P P 2 1 – 2 1 – 3 1 – 650 144 115 2 500 355 382 427 294 305 321 3EQ1 144 – 1 P P 2 1 – 650 650 650 144 144 150 115 115 120 3 3 3 850 850 850 325 325 338 346 346 360 384 384 400 276 276 288 283 283 295 297 297 310 3EQ1 3EQ1 3EQ1 144 144 150 – – – 2 2 2 P P P P P P 3 1 – 3 1 – 3 1 – 183 205 141 146 154 3EQ1 069 – 1 S B 2 1 – Neutral-ground arresters Um [kV] 170 4 650 69 55 2 500 170 1) According to IEC 60099-4 these values are measured on individual housing units Diagram 2/Diagram 3: Power-frequency voltage versus time characteristic Table 1 Maximum values 3EQ1 3EQ4 3EQ3 p. u. Ur [kV] 1.4 Preheating to 40 °C 1.3 Nominal system voltage Un kV 345 500 765 Highest voltage for equipment Um kV 362 550 800 1.1 Maximum rated voltage Ur kV 288 468 612 1.0 Maximum nominal discharge current In kA 10 20 20 3 5 5 kJ/kVr 8 18 27 A 850 2100 5500 1.3 kA 50 65 80 1.2 Rated short circuit current Maximum permissible service load 0.9 0.8 Maximum line discharge class Maximum energy absorption capability Maximum long duration current impuls Preheating to 60 ° C and stressing with rated energy 1.2 kNm 6 38 0.7 0.1 1 10 100 1000 t [s] p. u. Ur [kV] 1.4 Preheating to 40 ° C Preheating to 60° C and stressing with rated energy 1.1 72 1.0 0.9 Temporary Over Voltage (TOV) 0.8 To find the right arrester just follow the color codes 3EQ1 3EQ4 3EQ3 Height [H] Number of units [mm] 0.7 Housing insulation Creepage distance Lightning impulse withstand voltage 1.2/50 µs1) [kV] Power frequency withstand voltage 1 min., wet1) [kV] 0.1 1 10 100 1000 Top load dynamic Grading ring diameter [D] Weight t [s] TOV Diagram Figure [mm] [N] [mm] [kg] 4 4 4 4 xxx xxx xxx xxx 885 885 885 885 1 1 1 1 348 348 348 348 162 162 162 162 2075 2075 2075 2075 6800 6800 6800 6800 – – – – 25 27 25 27 2 2 2 3 11 11 11 11 4 4 4 4 xxx xxx xxx xxx 885 885 885 885 1 1 1 1 348 348 348 348 162 162 162 162 2075 2075 2075 2075 6800 6800 6800 6800 – – – – 27 26 28 28 2 2 3 2 11 11 11 11 4 xxx 4 xxx 885 885 1 1 348 348 162 162 2075 2075 6800 6800 – – 26 29 2 2 11 11 4 xxx 4 xxx 885 885 1 1 348 348 162 162 2075 2075 6800 6800 – – 23 24 2 2 11 11 4 4 4 4 xxx xxx xxx xxx 1235 1235 1235 1235 1 1 1 1 551 551 551 551 257 257 257 257 3390 3390 3390 3390 4900 4900 4900 4900 – – – – 32 35 36 33 2 3 2 2 11 11 11 11 4 4 4 4 xxx xxx xxx xxx 1235 1235 1235 1235 1 1 1 1 551 551 551 551 257 257 257 257 3390 3390 3390 3390 4900 4900 4900 4900 – – – – 37 33 38 38 2 2 2 2 11 11 11 11 4 xxx 4 xxx 4 xxx 885 1035 1235 1 1 1 348 435 551 162 203 257 2075 2635 3390 6800 5800 4900 – – – 25 33 33 2 3 3 11 11 11 4 4 4 4 xxx xxx xxx xxx 1235 1235 1485 1485 1 1 1 1 551 551 696 696 257 257 324 324 3390 3390 4330 4330 4900 4900 4000 4000 – – – – 68 71 72 76 2 3 2 2 11 11 11 11 4 4 4 4 xxx xxx xxx xxx 1485 1485 1485 1485 1 1 1 1 696 696 696 696 324 324 324 324 4330 4330 4330 4330 4000 4000 4000 4000 – – – – 77 78 79 79 2 2 3 2 11 11 11 11 4 xxx 1050 1 484 334 2490 5700 – 26 2 11 4 xxx 4 xxx 4 xxx 1485 1485 1485 1 1 1 696 696 696 324 324 324 4330 4330 4330 4000 4000 4000 – – – 39 44 45 2 3 2 11 11 11 4 xxx 1485 1 696 324 4330 4000 – 39 2 11 4 xxx 4 xxx 4 xxx 1485 1485 1485 1 1 1 696 696 696 324 324 324 4330 4330 4330 4000 4000 4000 – – – 45 45 46 2 2 2 11 11 11 4 xxx 885 1 348 162 2075 6800 – 26 2 11 5 Highest voltage for equipment Standard lightning impulse withstand voltage Rated voltage Um [kV] BIL min [kV] Ur [kV] Uc [kV] LD-Cl 245 850 850 850 850 192 192 192 192 154 154 154 154 2 2 3 3 850 850 850 192 198 198 154 158 158 850 850 850 198 198 198 850 850 228 228 245 850 300 850 850 850 850 Continuous Line Long operating discharge duration voltage class current 2 ms Maximum values of the residual voltages at discharge currents of the following impulses Arrester type [A] 8/20 µs 5 kA [kV] 8/20 µs 10 kA [kV] 8/20 µs 20 kA [kV] 30/60 µs 0.5 kA [kV] 30/60 µs 1 kA [kV] 30/60 µs 2 kA [kV] 500 850 850 850 473 415 433 433 509 442 461 461 570 490 511 511 392 353 369 369 407 362 378 378 427 380 396 396 3EQ1 3EQ1 3EQ1 3EQ4 4 2 2 1200 500 850 424 488 428 451 525 455 496 588 505 366 404 364 375 420 373 393 441 392 3EQ4 192 – 3 P R 4 1 – 3EQ1 198 – 1 P J 2 2 – 3EQ1 198 – 2 P J 2 2 – 158 158 158 3 3 4 850 850 1200 447 447 437 475 475 465 527 527 512 380 380 377 390 390 386 409 409 405 3EQ1 198 – 2 P J 3 2 – 3EQ4 198 – 2 P R 3 1 – 3EQ4 198 – 3 P R 4 1 – 182 182 3 3 850 850 514 514 547 547 607 607 438 438 449 449 471 471 3EQ1 228 – 2 P J 3 2 – 3EQ4 228 – 2 P V 3 1 – 102 82 2 500 251 270 303 208 216 227 3EQ1 102 – 1 S J 2 1 – 228 228 228 228 182 182 182 182 2 2 3 3 500 850 850 850 562 493 514 514 604 524 547 547 677 582 607 607 465 420 438 438 483 430 449 449 508 451 471 471 3EQ1 3EQ1 3EQ1 3EQ4 850 950 850 228 240 240 182 192 192 4 2 2 1200 500 850 504 592 519 536 636 552 589 712 613 434 490 442 445 509 453 466 534 475 3EQ4 228 – 3 P V 4 1 – 3EQ1 240 – 1 P P 2 2 – 3EQ1 240 – 2 P P 2 2 – 850 850 850 240 240 240 192 192 192 3 3 4 850 850 1200 541 541 530 576 576 564 639 639 620 461 461 457 472 472 468 495 495 491 3EQ1 240 – 2 P P 3 2 – 3EQ4 240 – 2 P V 3 1 – 3EQ4 240 – 3 P V 4 1 – 300 850 120 96 2 500 296 318 356 245 254 267 3EQ1 120 – 1 S J 2 1 – 362 950 950 1050 276 276 288 220 220 230 3 4 3 850 1200 850 623 610 650 662 649 691 735 713 767 530 526 553 543 538 567 570 564 594 3EQ4 276 – 2 P N 3 2 – 3EQ4 276 – 3 P N 4 2 – 3EQ4 288 – 2 P N 3 2 – 1050 1175 288 360 230 288 4 2 1200 850 636 778 677 828 744 919 548 662 562 679 589 712 3EQ4 288 – 3 P N 4 2 – 3EQ4 360 – 2 P N 2 2 – 362 950 147 117 3 850 332 353 392 282 289 303 3EQ1 147 – 2 S P 3 1 – 420 1175 1175 1175 336 336 336 268 268 268 3 4 5 850 1200 1600 758 742 734 806 790 773 895 869 842 645 640 634 661 656 657 694 687 680 3EQ4 336 – 2 P R 3 2 – 3EQ4 336 – 3 P R 4 2 – 3EQ4 336 – 4 P R 5 2 – 1175 1300 1300 1175 336 360 360 360 268 288 288 288 5 3 4 5 1600 850 1200 1600 734 812 795 787 773 864 846 828 842 959 931 903 634 691 685 679 657 708 702 704 680 743 736 729 3EQ3 3EQ4 3EQ4 3EQ4 1175 360 288 5 1600 787 828 903 679 704 729 3EQ3 360 – 4 P N 5 2 – 420 1175 168 134 3 850 379 403 448 323 331 347 3EQ1 550 1300 1300 396 396 316 316 5 5 1600 2100 865 839 911 883 993 954 747 742 774 760 802 786 3EQ4 396 – 4 P V 5 2 – 3EQ4 396 – 5 P V 5 2 – 1300 1300 1425 399 399 420 319 319 336 5 5 5 1600 2100 1600 872 845 918 918 890 966 1000 961 1053 753 747 792 780 765 821 808 792 850 3EQ4 399 – 4 P V 5 2 – 3EQ4 399 – 5 P V 5 2 – 3EQ4 420 – 4 P V 5 2 – 1425 1425 1550 1550 420 420 444 444 336 336 355 355 5 5 5 5 2100 2100 1600 1600 890 890 970 970 937 937 1021 1021 1011 1011 1113 1113 787 787 837 837 806 806 868 868 834 834 899 899 3EQ4 3EQ3 3EQ4 3EQ3 1425 1425 444 444 355 355 5 5 2100 2100 941 941 990 990 1069 1069 832 832 852 852 881 881 3EQ4 444 – 5 P V 5 2 – 3EQ3 444 – 5 P T 5 2 – 1208 1246 1265 1297 1271 1311 1331 1365 1373 1416 1438 1474 1068 1101 1118 1146 1093 1128 1145 1174 1131 1167 1185 1215 192 192 192 192 – – – – 1 2 2 2 P P P P J J J R 2 2 3 3 2 2 2 1 – – – – Neutral-ground arresters Um [kV] 228 228 228 228 – – – – 1 2 2 2 P P P P P P P V 2 2 3 3 2 2 2 1 – – – – Neutral-ground arresters Um [kV] Neutral-ground arresters Um [kV] 336 360 360 360 – – – – 4 2 3 4 P P P P M R R R 5 3 4 5 2 2 2 2 – – – – Neutral-ground arresters Um [kV] 800 6 1800 570 456 5 2100 1950 588 470 5 2100 1950 597 477 5 2100 1950 612 489 5 2100 1) According to IEC 60099-4 these values are measured on individual housing unit 3EQ3 3EQ3 3EQ3 3EQ3 168 – 2 S S 3 1 – 420 420 444 444 570 588 597 612 – – – – – – – – 5 5 4 4 5 5 5 5 P P P P P P P P V S V T S T T U 5 5 5 5 5 5 5 5 2 2 2 2 3 3 3 3 – – – – – – – – Height [H] Number of units [mm] Housing insulation Creepage distance Lightning impulse withstand voltage 1.2/50 µs1) [kV] Power frequency withstand voltage 1 min., wet1) [kV] Top load dynamic Grading ring diameter [D] Weight TOV Diagram Figure [mm] [N] [mm] [kg] xxx xxx xxx xxx 2470 2470 2470 2060 2 2 2 1 1102 1102 1102 806 513 513 513 375 6780 6780 6780 6210 2400 2400 2400 10200 800 800 800 800 64 71 72 109 2 3 2 2 12 12 12 41 4 xxx 4 xxx 4 xxx 2060 2470 2470 1 2 2 806 1102 1102 375 513 513 6210 6780 6780 10200 2400 2400 800 800 800 119 65 72 2 2 3 41 12 12 4 xxx 4 xxx 4 xxx 2470 2060 2060 2 1 1 1102 806 806 513 375 375 6780 6210 6210 2400 10200 10200 800 800 800 72 110 120 2 2 2 12 41 41 4 xxx 4 xxx 2470 2460 2 1 1102 1035 513 482 6780 7715 2400 8500 800 800 76 118 2 2 12 41 4 xxx 1235 1 551 257 3390 4900 – 33 2 12 4 4 4 4 xxx xxx xxx xxx 2970 2970 2970 2460 2 2 2 1 1392 1392 1392 1035 1008 1008 1008 750 8660 8660 8660 7715 2000 2000 2000 8500 1000 1000 1000 800 77 85 86 118 2 3 2 2 12 12 12 41 4 xxx 4 xxx 4 xxx 2460 2970 2970 1 2 2 1035 1392 1392 750 1008 1008 7715 8660 8660 8500 2000 2000 800 1000 1000 130 79 86 2 2 3 41 12 12 4 xxx 4 xxx 4 xxx 2970 2460 2460 2 1 1 1392 1035 1035 1008 750 750 8660 7715 7715 2000 8500 8500 1000 800 800 88 119 132 2 2 2 12 41 41 4 xxx 1235 1 551 399 3390 4900 0 34 2 11 4 xxx 4 xxx 4 xxx 3520 3520 3520 2 2 2 1624 1624 1624 1176 1176 1176 10170 10170 10170 6000 6000 6000 1200 1200 1200 175 189 176 2 2 2 42 42 42 4 xxx 4 xxx 3520 3520 2 2 1624 1624 1176 1176 10170 10170 6000 6000 1200 1200 191 183 2 3 42 42 4 xxx 1485 1 696 504 4330 4000 0 45 2 11 4 xxx 4 xxx 4 xxx 4120 4120 4120 2 2 2 1612 1612 1612 1168 1168 1168 12420 12420 12420 5100 5100 5100 1500 1500 1500 191 210 227 2 2 2 42 42 42 4 4 4 4 xxx xxx xxx xxx 3600 4120 4120 4120 2 2 2 2 1682 1612 1612 1612 1218 1168 1168 1168 10540 12420 12420 12420 11700 5100 5100 5100 1200 1500 1500 1500 279 194 214 234 2 2 2 2 32 42 42 42 4 xxx 3800 2 1798 1302 11300 11100 1200 292 2 32 4 xxx 1635 1 783 567 4895 3700 0 50 2 11 4 xxx 4 xxx 4920 4920 2 2 2071 2071 1499 1499 15430 15430 4300 4300 1800 1800 251 311 2 2 42 42 4 xxx 4 xxx 4 xxx 4920 4920 4920 2 2 2 2071 2071 2071 1499 1499 1499 15430 15430 15430 4300 4300 4300 1800 1800 1800 251 311 256 2 2 2 42 42 42 4 4 4 4 xxx xxx xxx xxx 4920 4600 4920 4800 2 2 2 2 2071 1891 2071 2007 1499 1369 1499 1453 15430 14300 15430 15060 4300 9100 4300 8800 1800 1800 1800 1800 319 386 263 333 2 2 2 2 42 32 42 32 4 xxx 4 xxx 4920 4800 2 2 2071 2007 1499 1453 15430 15060 4300 8800 1800 1800 327 397 2 2 42 32 4 4 4 4 6900 7200 7200 7500 3 3 3 3 2836 3010 3010 3184 2054 2180 2180 2306 21450 22590 22590 23700 6100 5800 5800 5600 2200 2200 2200 2650 557 571 577 592 2 2 2 2 33 33 33 33 4 4 4 4 xxx xxx xxx xxx 7 Housings 3EQ1 11 8 3EQ1 12 3EQ4 41 3EQ4 42 3EQ3 32 3EQ3 33 Figure Installation and Grounding 3EQ1 100 50 114 8 30 (15) (87) 3 50 24 30 60 200 260 Ø14 25 M12 200 260 298 4 mounting holes 200 x 200 mm for insulated installation DIN flat terminal 100 44.5 Ø14 28 380 310 8 114 44.5 30 (16) (87) 380 310 3 30 60 24 M12 Ø24 NEMA flat terminal 80 44.5/50 Ø30 80 M12 80 44.5/50 4 mounting holes 310 x 310 mm for insulated installation Additional cable clamp for flat terminal Bolt terminal 9 Control Devices for Surge Arresters These control devices can be connected to all shown surge arresters in this catalogue. Arrester condition indicator The arrester condition indicator (ACI) shows the arrester status at a glance. Its easy-to-understand “traffic light” visualisation is based on a 3rd-harmonicevaluation of the leakage current. Control spark gap To estimate the current that flows through the surge arrester in case of an over voltage and to count the surges Surge counter Surge counter with leakage current meter Order number: 3EX5070 Order number: 3EX6040 Order number: 3EX5030 Order number: 3EX5050 Installation and Grounding 3EQ4 380 M20 310 M20 44.5/50 80 M12 (15) 310 380 80 44.5/50 80 M12 4 mounting holes 310 x 310 mm for insulated installation Additional cable clamp for flat terminal 100 100 44.5 Bolt terminal 10 44.5 28 Ø14 DIN flat terminal Ø14 114 80 Ø30 114 50 25 50 NEMA flat terminal Display Up to 200 m Sensor LCM II System for live condition check of metal oxide surge arresters Surge counter with leakage current meter remote indication Order number: 3EX5060 Order number: 3EX5062 Installation and Grounding 3EQ3 M20 M20 M12 (15) M12 270 330 44.5/50 80 330 270 44.5/50 80 Additional cable clamp for flat terminal 4 mounting holes 270 x 270 mm for insulated installation 100 100 44.5 Bolt terminal DIN flat terminal 44.5 28 Ø14 114 80 Ø30 Ø14 114 50 25 50 NEMA flat terminal 11 Table 3: Example Order number Silicone rubber housed surge arrester tube design Surge arrester model Bending moment 6 kNm Bending moment 21 or 38 kNm Bending moment 42 or 72 kNm Rated voltage in kV Long duration current 500 A 850 A 1200 A 1600 A 2100 A Application Phase surge arrester Neutral point surge arrester Housing size of single unit Line discharge class (for example) LD 1 LD 2 LD 3 LD 4 LD 5 LD 5+ / 2 columns LD 5+ / 3 columns LD 5+ / 4 columns Number of units 1 unit 2 units 3 units Form of sheds and colour Alternating sheds, grey High-voltage terminal Metal plate (connection with cable eye) Bolt 30 mm diameter, 70 mm long Bolt 30 mm diameter, 80 mm long Bolt 30 mm diameter, 80 mm long Bolt 30 mm diameter, 100 mm long Bolt 35/36 mm diameter, 80 mm long Bolt 40 mm diameter, 80 mm long Bolt 40 mm diameter, 100 mm long Bolt 40 mm diameter, 120 mm long DIN Flat 100 mm x 100 mm DIN Flat 100 mm x 100 mm DIN Flat 200 mm x 100 mm NEMA Flat 100 mm x 100 mm NEMA Flat 100 mm x 100 mm NEMA Flat 100 mm x 100 mm DIN Flat NEMA Flat Special Name plate German/Englisch (standard) French Czech Slovene Russian Spanish Portuguese IEEE Brazil Special Mounting 4 hole Not insulated 4 hole Insulated 4 hole insulated, 310 mm x 310 mm, M20 4 hole 10" not insulated 4 hole 16.5" not insulated 4 hole 10" insulated 4 hole 16.5" insulated Not all combinations are possible. Published by and copyright © 2010: Siemens AG Energy Sector Freyeslebenstrasse 1 91058 Erlangen, Germany E Q (for example) 3 E Q 1 120 – 2 P F 3 1 – 4 D A 1 1 4 3 (for example) The top row in table 3 shows an example of the build-up of our order numbers. The items in dark grey are customer specific variables. 120 1 2 3 4 5 P S F 1 2 3 4 5 6 7 8 1 2 3 4 A B C D E F G H J K L M N S U V W Z stainless steel hot-dip galvanized steel stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel hot-dip galvanized steel hot-dip galvanized steel, 20 mm thick hot-dip galvanized steel hot-dip galvanized steel copper aluminum A B C D E F G H T Z (3EQ1/3) (Standard) (3EQ1) (3EQ1/4) (3EQ3/4) (3EQ1/4) (3EQ3/4) Please contact us at: Phone: +49 30/386 33 222 Fax: +49 30/386 26 721 E-mail: [email protected] Siemens AG Energy Sector Power Transmission Division High Voltage Products Nonnendammallee 104 13629 Berlin, Germany www.siemens.com/energy/arrester-download 12 www.siemens.com/energy (for example) 3 0 1 3 5 6 7 8 Power Transmission Division Order No. E50001-G630-A111-X-4A00 Printed in Germany Dispo 30002 TH 263-091033 470867 WS 01101.0 Printed on elementary chlorine-free bleached paper. All rights reserved. Trademarks mentioned in this document are the property of Siemens AG, its affiliates, or their respective owners. Subject to change without prior notice. The information in this document contains general descriptions of the technical options available, which may not apply in all cases. The required technical options should therefore be specified in the contract.