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LS Medium Voltage Vacuum Contactors - el

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1. 3 6 7 2kV blowing characteristic 3 6 7 2kV current limiting characteristic gg eles MN 125A 600 y 400 4 wi 100A ale 200 20 TH 75A 200 100 30A 63A 100 80 80 60 40 60 40 40 50A 125A 20 gt 20 100A 75 gt 10 10 x 63A A 6 6 50A 2 40 3 30A 6 2 2 20 S 1 10 08 08 8 06 2 06 0 4 8 0 4 0 2 0 2 0 1 0 1 0 08 0 08 0 06 0 06 0 04 0 04 0 02 0 02 0 01 0 01 3888 83828 8 x N Current sym Interrupting current sym 3 6kV blowing characteristic 3 6kV current limiting characteristic 1000 1000 800 800 600 600 400 400 160 200 200 100 100 80 80 60 60 40 40 200 20 20 PS 160A 5 10
2. Fuse link Fuse selection by load Application cree iai nenging nenging Transformer load kVA Capacitive load kVA Model kV A kA A Single phase Three phase Three phase LFL 3 6G 5B 5 4 8 8 16 67 14 13 28 98upto PA SANA LFL 3 6G 108 10 2 992 LFL 3 6G 208 20 159 31 90559211 25 5 51 107 1231 24 61 LFL 3 6G 30B 30 D A BA de tL ese 6 s 3 66 408 34 40 40 82 80 165 49 143 137 286 46 64 92 128 LFL 3 6G 508 7 2 50 49 102 oe 204 85 117 170 354 64 81 128 163 LFL 3 6G 608 l 63 Ain 06137 1132275 114 238 229 476 181 105 163 210 LFL 3 6G 75 75 68 165 134 330 117 285 233 571 105 150 210 300 LFL 3 6 1008 100 128 220 256 440 222 381 443 762 150 222 300 445 LFL 3 6 1258 125 151 275 302 550 261 476 522 952 222 2 5_ 445 550 LFL 3G 1608 36 160 40 211 59952 1365 610 275 370 LFL 3G 2008 200 265 440 495 762 370 550 LFL 6 1608 160 425 704 735 1 220 550 742 IFL 6G 2008 200 437 880 755 1 520 742 1 000 LFL 20G 5B 9 43 36 75 46up to LFL 20G 10
3. 1000 800 600 Ly 400 Vy wy 200 1 t 7 1 4 100 1 1 190 Him 60 400 T300 A X lt 40 300 T200 A 40 75 200 5 150 T100 A o 20 0 5 Q 20 75 150 2 10 50 T30 A 10 8 40 T20 A 2 30 T15 A 6 2 175 8 2 0 T3 A o AE 5 T15 A 8 A 5 08 AAS O og 0 8 2 0 6 2 2 DENG o VA d 0 2 0 4 VA WM 3 BONS 0 1 0 2 ov aN gt A 2 KW oy N 0 1 LN c LEX 0 08 C LN ue 0 06 0 04 oor o 0 02 o ooo ne 5 0 01 Interrupting current sym kA oooooc A OT LO COOCO OcOCOOdocc C CO 0090090 T mM OOOO O 00000 N Current sym M Motor protection type fuse 3 6kV blowing characteristic 7 2kV blowing characteristic 1200 1200 1000 800 1000 600 600 wi 400 m 400 vy 1 200 Va 200 Vh 100 100 80 Y 80 Y 60 60 40 40 20 20 D 9 19 6 2 5 exe ele As z sedes o 12 ele We 2 gt 1 Ie has amp gt 125 c gt gt gt gt 1 2 08 O 0 6 04 0 4 02 02 0 1 0 1 0 08 0 08 0 06 0 06 0 04 0 04 0 02 0 02 890858 5 55595598 225552 5 888888 S SYUDUO Q 5525058 222252 2
4. 340 Terminal hole DN 439 Mechanical Interlock type 251 MEC TRI 399 P 30 95 34 5 76 7 Mounting hole 719 71 atik he 3l 1 7 Il L 4 ex j 59 o o N 670 Terminal hole 821 6 4 914 Mounting hole ala 11 Terminal hole TRI 520 AL N 516 540 4 14 Mounting hole 2 Selection tables G General use type 28 DIN type 27 DIES wo E KCN
5. case of protection of two or more transformers Fuse rating should be selected on the basis of the phase condition where maximum current flows In the event of short circuit in the secondary of the transformer The lowest interrupting current of the fuse lt Short circuit current in the primary of the transformer case of potential transformers When the fuses are selected do not consider the short circuit happening in the secondary of the PT but protecting PT itself and the circuit against the fault in the primary side Select the fuse with higher rated current than the load current so as not to be damaged by overcurrent The characteristic curve of a fuse must lie to the right of those of other equipments to be protected The withstand strength such as permissible let through current 121 of the equipments to be protected must be higher than that of a fuse Note Refer to the general considerations other than the above mentioned 2 Power fuses for motor loads fuse with sufficient rated curent must be selected to avoid the deterioration of the fuse element due to permissible overload in the long term fuse s current time characteristic should cover the inrush current time of the motor The inrush current of the motor must be within 5 times of the fuse rating and the fuse should withstand at least 10 seconds under the condition Fuse rated current gt Motor full load current Note Refer to the
6. EMG BAR LIBE HREH BE een m HER NEN HE ADM DE OD ABE REN JAANA 1 0 11 Short circuit protection 40 Power tused type vacuum contactors tested according to IEC 602621 can provide short circuit protection up to 40 High performance high reliability and long service life LS vacuum interrupters that comply with IEC ANSI and NEMA standards are manufactured by the process of brazing and degasing together in a high vacuum furnace to assure high reliability Superior mechanical strength and degasing Providing long service life and suited for frequently operating purpose due to using high alumina ceramic tube and degasing in a high temperature 6 High speed interruption and short arcing time It has fast recovering characteristic of vacuum insulation When opening it breaks the current at the first current zero point to minimize the wearing of contacts Reliable interruption of fault current LS current limiting power fuse can protect the devices and systems from fault current by interrupting within half cycle High current such as short circuit current cause a fuse blown out due to the reaction on the material inside of a fuse within such a short time Applied standards IEC 282 1 DIN 43625 BS 2692 KSC 4612 Personnel safety
7. Rated curent A Control method Modification No Senggani ME 3 6 Fiyed type 4 4 2 200 ME Continuous EAM 6 72 Drawout type 4 400 excitation Conventional Combination drawout type Instantaneous type Fuse connectable excitation Direct drawout type For MCSC Combination direct drawout type Fuse connectable and for MCSC 10 Cradle 3 6 7 2kV common Mechanical interlock type Breaking current E class PS lalb 44 Rated current F class with shutter only class with shutter and bushings LVC 37 42ED 64 LVC 37 44ED LVC 67 42ED LVC 67 MED 32L 34L 621 LVC 37 42LD LVC 32 44LD LVC 62 42LD 641 61 44 0 200 400 common DI 0 DC 110V For MCSG 110V 32 LVC 37 42ED 52 2020 A2 AC 220V 34E LVC 37 44ED 62 LVC 6 42ED 64 LVC 67 44ED 321 LVC 37 42LD 34L 31 44 0 621 67 4210 64 67 4410 DI Al ACIIOV A2 220 11 External view eoo 8080 Front cover Fuse checking window amp Connector Unlock button Interlock lever Handle Draw in and Drawout ON OFF indicator 62 Operation counter Manual
8. Contactor over contactor arrangement uinterock button Drawoui cradle for MCSG mOne moldedhuse nolder Fuse Checher micro m Unification bushing Suitable for Metal Clad Switchgear The structure of G type cradle unification bushings and single molded fuse holder barrier enables vacuum contactors to build Metal Clad Switchgears Directly withdrawable equipment This enables the withdrawing of a vacuum contactor from a panel without opening a door to prevent any possibility of electric shock Additional equipment Interlock For the safety of a operator interlock is equipped as standard Auxiliary contacts Available up to SNO 5NC Technical data Fixed Z type Drawout D type Direct drawout DB type for MCSG Type LVC 3Z LVC 6Z LVC 3Z LVC 6Z LVC 3D LVC 6D LVC 3D LVC 6D LVC 3DB LVC 6DB LVC 3DB LVC 6DB 420D 420D 440D 440D 420D 420D 440D 440D 420D 420D 440D 440D Rated operation voltage kV 24 6 6 3 3 6 6 3 3 6 6 33 6 6 3 3 6 6 3 3 6 6 Rated voltage Ur kV 3 6 2 3 6 7 2 3 6 72 3 6 7 2 3 6 7 2 3 6 7 2 Rated operational current le A 200 400 200 400 200 400 Rated frequency fr Hz 50 60 Rated breaking current kA O 3min CO 2min CO 4 Rated short time current 2 4kA 30s 4
9. Auxiliary contact y Y 6 8 10 12 14 16 3a3b Impress the power to terminal No 1 and 2 ON OFF operating by using contacts of terminal No 3 and 4 Note User s wiring part AC control Main Circuit _ 5 00 gt 0 0 O Auxiliary contact lt 9 0 gt n lt _o 5 D 3a3b Impress the power to terminal No 1 and 2 ON OFF operating by using contacts of terminal No 3 and 4 Note User s wiring part 18 Fixed type Instantaneous excitation Instantaneous excitation DC control 2 13 14 Main Circuit i44 7 Auxiliary contact Impress the power to terminal No 1 and 2 Input ON OFF operating by using No 4 terminal e Output Trip by using No 5 terminal Note User s wiring part equipped Iii 11 Auxiliary contact 4 O 0 Impress the power to terminal No 1 and 2 Input ON OFF operating by using No 4 terminal e Output Trip by using No 5 terminal Note User s wiring part 19 Internal connection diagrams Drawout type Continuous excitation Continuous excitation DC control 1 3 4 lt 0 0 M
10. 4 Nad L on teh SZ MEN 670 Terminal hole 340 Terminal hole 820 4 014 2 Mounting hole 4 503 6 Mounting hole F Class Cradle 559 108 575 90 e 20 2 EIE i P 3 i j T 18 pi 1 0 g 14 Terminal 5 e ls ES 105 670 Terminal hole 340 Terminal hole 41 014 dd Mounting hole 821 6 Mounting hole 139 4 G Class Cradle 559 108 515 4 90 119 119 1 1 20 I 4 x Js 8 ii 1 i EZ Hg 6 4 l U E gt 11 6 T Terminal hole g d si SU T ee al 25 4 r de 195 T 95 1 670 Terminal hole 340 Terminal hole Mounting hole 821 6 4 614 Mounting hole 25
11. 105 6 25 6 3kA 1s 8KA 0 5s 10 0 15 Rated shorf time peak current kApeak 0 5 60 Switching frequency AC3 op hr Continuous 1200 L Instantaneous 300 Lifetime Mechanical 10 000operations Continuous 300 L Instantaneous 50 Electrical 10 0000perations 30 Impulse withstand Up kVp 60 Dielectric strength Ud kV 1min 20 Excitation method Continuous L Instantaneous Control voltage V 110V AC 220V DC 110V Auxiliary contact Arrangement Continuous 3a3b Instantaneous 2a2b 2a2b 2a2b Current A 10 AC Voltage V 600max 48min Max Applicable Motors kW 750 1 500 1 500 3000 750 1500 1500 3000 750 1 500 1 500 3000 Transformers kVA 1000 2 000 2 000 4000 1 000 2000 2 000 4 000 1 000 2000 2000 4000 Capacitors kVA 750 1 500 1200 2000 750 1500 1200 2000 750 1 500 1200 2000 Weight kg 24 4 56 Note DAS 7HS Power fuse Power fuses can be installed into combination G GB type contactors for the protection of equipments and systems from short circuit Fuse ratings are selected properly after system analysis and some accessories such as fuse link clips should be selected by the fuse rating Combination drawout G type Combination direct drawout GB type
12. External dimensions Combination drawout type Unit mm Fused combination E Class Cradle 440 20 014 T Terminal hole jll 222122722 5 61 aa eh aki aki ajaa 319 3 i i EE Ga 670 Terminal hole 4 614 820 Mounting hole Mounting hole 439 503 6 F Class Cradle 0003 OUL a wi 617 5 014 Terminal hole 340 Terminal hole 439 G Class Cradle 108 515 90 559 4 119 119 E 319 3 014 Terminal 166 0 amp 9 8 e 105 95 670 Terminal hole 4 014 Terminal hole 4 914 Mounting hole 821 6 Mounting hole 439 26 Direct drawout type Unit mm For MCSG B Class Cradle 5 14 Terminal hole
13. 10 o 8 gt d 0 6 d 6 4 2 4 2275 o S E D 1 1 08 Z 08 06 06 04 04 O 0 2 0 2 04 0 1 0 08 0 08 0 06 0 06 0 04 0 04 0 02 0 02 0 01 0 01 lt 3888 8 8988 8 8 G 0085 gt Current sym Interrupting current sym kA 7 2kV blowing characteristic 7 2kV current limiting characteristic 1000 1000 800 800 600 200 600 400 400 200 H 200 100 100 80 80 60 60 40 40 200A 20 _ 20 160 10 lt 10 x 8 2 6 5 4 5 2 8 2 S E 3 os Q 08 0 8 06 06 04 5 04 O 0 2 0 2 4 0 1 0 1 0 08 0 08 0 06 0 06 0 04 0 04 0 02 0 02 0 01 0 01 99898 8 8888 8 8888 E A 000 o ooo N Current sym Interrupting current sym kA 34 G General use type fuse 3 6 7 2kV blowing characteristic 3 6 7 2kV current limiting characteristic
14. 3G 300 36 300 amp 5upo Mp 1000upto LFL 3G 400 400 750upio 15000pto LFL 66 150 150 500up to 1 000up to 800up to LFL 6G 200 200 750up to 1 500up 1o 1 200up 10 LFL 66 300 72 300 1 250up to 2 000up fo 3 LFL 6G 400 400 2 500up to LFL 20 20 50 LFL 3M 50 50 1500 LFL 3M 100 100 300upto LFL 150 3 6 150 400upio LFL 200 200 800upto LFL 300 300 1000 LFL 400 400 gt LFL 6M 20 100010 LFL 6M 50 50 300upto LFL 6M 100 100 600up to LFL 6M 150 7 2 150 800up to LFL 6M 200 200 LFL 6 300 300 EN LFL 6 400 400 Fuse selection by load Dimensions mm Motor load kVA Applicable holder A B C D Three phase 65 107 13 22 10 7 28 22 36 28 S7 36 86 50 85 86 117 1 59 85 115 117 220 LFH 6G D1HB 115 142 230 284 138 191 276 382 181 252 362 503 192 77 253 369 469 739 293 435 556 870 343 572 375 7630 292 77 LFH 6G D2HB 51 1223 1 154 1 760 442 55 442 77 LFH 20G D2HB 442 87 Fuse selection by load Dimensions mm
15. 3a2b gt 23 External dimensions Fixed type Unit mm 3 67 42 44 1 484 8 IT 234 247 us EP LLL A 5 2 E 25 p 9 ma i 398 6 Ld fer xls a lt NE um e T N 211 Terminal hole En y 1 p 15 115 Terminal hole 385 Terminal hole i LO e 2 d 247 I 440 S 4 09 4 09 Mounting hole Mounting hole Drawout type w o a cradle 3 60 42 44 1 Combination drawout type 2 2 w o a cradle Fused combination _ A LVC 3 6G 42 44E L D H H H H H H E 160 604 1 308 316 AL 139 472 2 1 Y H H H E H H E H H H E H H H E H H E H 24 Drawout type Unit mm E Class Cradle 90 AL A 11 Terminal 577 4 319 3
16. 7 2 160 200 292 5 101193 20 T7 5 115 40 20 50 130 6011 26 LFL 3 4G 34 72 5 T1 5 10119 20 T7 5 30 T15 40 720 50 730 601120 50 6 751150 100 T75 60 31 General use General 150 T100 20011150 60 311 transformers use LFL 3G 3 6 3001250 40011300 77 311 capacitors LFL 6G L 7 2 1501100 200 1150 77 31 KS type M20 M50 M100 60 200 LFL 3M 3 6 150 M200 77 200 For M300 M400 Note 87 250 Motors motors M20 M50 60 31 capacitors LFL 6M L 7 2 M100 150 M200 77 350 M300 M400 Note 87 450 Note FA 8244527 100 FAAMAS 0182 VC ASS 0 12 400884 AMES 939 x LFL 6G 300 4002 10 amp 7letulcr Ordering information Contactor Control vollage kV Fuse checker PT Position Switch FUSE type DI 0 Without 0 Without PT Without 01 LFL 3 6G 5 60 124 050 Al With 1EAof100Var 1 With 02 3 0 00 120 960 A2 AC 220 2 2EA of 100Var LFL 3 6G 75 100 1311 9 60 03 LFL 3G 150 200 3 IEA of 200Var 4 LFL 6M 20 50 _4 2FAof200Var 04 LFL3M 150 200 1200 077 LFL 3G 300 400 1311 077 LFL 6G 150 200 06 LFL 6M 100 200 1350 0 77 07 LFL 3M 300 250 087 08 LFL 6M 300 1450 0 87 LFL 3 6G 5B 100B 1258 9 45 LFL 3 6G 125B 200B L358 9 45 Contactor type Vacuum Rated vollage kV Installation Breaking
17. ae gt 17 gt gt 18 O lt 4 Note User s wiring part Auxiliary contact Y 8 Impress the power to terminal No 1 and 2 19 Fuse checker Option Y Y 20 21 Input ON OFF operating by using No 4 terminal e Output Trip by using No 5 terminal Note User s wiring part 21 Connection diagrams Mechanical interlock type Instantaneous excitation Instantaneous excitation 154 25D ae ene sees Id 14 24 25 913 230 1 12 221 VC2 EN nm lt 2 2 gt LT TT CT FER ZO LOT 20 Gul 2 C FII ELS lt 2 26 gt AUX S W 2 C5 C6 C1 CTD lt 2 26 gt 1 2 5 L 7 8 9 lt 2 2 gt AUX S W 2 Sl ss a a T 22 Mechanical interlock type Continuous excitation Continuous excitation VC1 E wak wk amah 24 gi Tele 11 lt
18. 222222 lt oooooo NDES S600 60 51 A ONG Current sym A Current sym A 200 100 80 60 40 Current limited peak kA ROO 10 or lO o ooo Interrupting current sym 35 Leader in Electrics amp Automation For your safety please read user s manual thoroughly before operating Contact the nearest authorized service facility for examination repair or adjustment Please contact qualified service technician when you need maintenance Do not disassemble or repair by yourself Safety Instructions Any maintenance and inspection shall be performed by the personnel having expertise concerned LS Industrial Systems Co Ltd www Isis biz HEAD OFFICE Global Network LS Industrial Systems Tokyo Office gt gt Tokyo Japan Yonsei Jaedan Severance Bldg 84 11 Namdaemunno 5ga Address 16F Higashi Kan Akasaka Twin Towers 17 22 2 chome Akasaka Minato ku Tokyo 107 8470 Japan Jung gu Seoul 100 753 Korea Tel 81 3 3582 9128 Fax 81 3 3582 0065 e mail dongjins lsis biz e LS Industrial Systems Dubai Rep Office gt gt Dubai U A E Tel 82 2 2034 4870 Address 114216 API World Tower 303B Sheikh Zayed road Dubai UAE Tel 971 4 3328289 Fax 971 4 3329444 e mail
19. Above picture shows korean standard type If you want to order DIN type fuse please contact LS Industrial Systems before you order it 31 Coordination graph Coordination between fuse and transformer circuit gt 5 lt n mb Full load current of a transformer The lowest interrupting current of the secondary circuit breaker 3 Permissible overload current of a transformer Rated current of a fuse 5 Lowest blow out current of a fuse Lowest interrupting current of a fuse 7 Inrush current at no load of a transformer rid id 2 gt 4 8 i _ H gt 1 6 pi Characteristic curve of a secondary Tto circuit breaker or low voltage fuse 1 ME Converted into the primary values Fuse TEE rt gt Permissible overload i TE Go characteristic curve of a transformer e od r 34 gt Time Current characteristic curve of a Fuse i d Blow out characteristic curve of a Fuse Transformer E 3 i gt Operation characteristic curve of a Fuse Circuit breaker WE i y or low voltage fuse RM Secondary short circuit current 9 0 Curreni Rated interrupting current of a secondary circuit breaker aumenti iege franstonmer Primary short circuit current B Permissible overload characteristi
20. B 10 43 90 15 157 46 83 LFL 20G 20B 20 99 206 172 358 83 203 LFL 20G 30B 30 149 310 258 538 W3 37 LFL 20G 40B 40 267 557 464 965 317 425 LFL 20G 50B 24 50 345 719 598 1 246 425 564 LFL 20G 60B 60 430 897 745 1 554 564 710 LFL 20G 75C 75 580 1 145 1 000 1 983 710 1 021 LFL 20G 100C 100 923 1 527 1 600 2 645 1 021 1 655 LFL 20G 1258 125 25 1 364 1 908 2 362 3 304 1 655 2 370 LFL 20G 1608 160 2 125 2 443 3 680 4 232 2 370 3 170 LFL 20G 2008 200 2 650 3 050 372 225207 3 170 4 000 Fuse link Fuse selection by load Application a rw Model kV A kA A Single phase Three phase Three phase EL ONES 9 5 ISupto x 006010 10 lOypio l5upto l5upio 30upto lOupio 25upto 20 20upto 50 30upio 7Supto 30upio SOupto LFL 3 6G 30 3 6 30 30uplo 75up to 75upto 150upto 50uplo 100upio LFL 3 6 40 7 2 40 50upto 100upio 100upto 200up to 75upto 150upto LFL 3 6 50 50 75upto 150upto 150upto 300 1000010 200up to LFL 3 6 60 63 _ LFL 3 6G 75 75 1500 200upto 200upto 4000 2000010 400up to LFL 3 6G 100 100 40 5In 200upto 400 375 750upto 3O0upio 600upto LFL 3G 150 150 300upto 500upto 400upto LFL 3G 200 200 400upto 750upio 600upio LFL
21. Leader Electrics amp Automation Tri MEC LS Medium Voltage Vacuum Contactors Electric Equipment LS Industrial Systems WWW lsis biz Customer satisfaction through quality and service 5 medium voltage vacuum contactors LS medium voltage vacuum contactors using LS vacuum interrupters manufactured with worldclass technology are type tested in LS PT amp T that is accredited high power test lab by worldclass KOLAS Contents agenda nag UE 4 10 Ordering information 12 External view 14 S afety components RAM 15 Internal structure 16 Vacuum interrupters 17 18 Drawin g operations ANA FT 19 Electrical circuit diagram 20 Internal connection diagrams 22 External dimensions ss 24 Selection tables sss 28 Power fuse ee 30 Power fuse selection guides 5 3 Coordination graph e 32 Operation CUNY ES etti nane rena ian ia 34 TRI F LS Tri MEC vacuum contactors are mainly used for the switching of motors transformers capacitors in AC power lines They can be installed in multi stack cubicles A vacuum contactor comprises several assemblies such as switching mechanism including vacuum interrupters magnetic actuator high strength molded front cover and auxiliary devices Stable and high operating cycle is executed by the vacuum interrupters made of high alumina ceram
22. Motor load kW Applicable holder A B C D Three phase z 261 50 47 25 LFH 6G D60 311 60 57 30 LFH 6G D1H 311 77 73 43 LFH 6G D2H 350 110 108 55 LFH 6G D4H 37 75 x 902200 12 200 60 58 30 LFH 3M 100 220 400 450 630 ZEE 200 77 73 43 LFH 3M 200 900 1250 1 500 250 87 84 50 3 400 75 160 185 400 311 60 58 30 LFH 6M 50 450 800 700 1250 350 77 73 43 LFH 6M 200 1 500 2500 3000 450 87 84 50 LFH 6M 400 A Selecting conditions and warning 1 2 The valuesin apply to the loads of 7 2kV It is assumed that the inrush current of a transformer is 10 times of the full load current of a motor for 0 1 second The rated current of a fuse is selected to carry continuously the current of 1 5 times of rated current of a transformer 1 3 times in the case of the transformer load table it is assumed that the interruption will be made at 25 times of rated current within 2 seconds lt is assumed that the inrush current of a motor is 5 times of full load current for 10 seconds In the case of using the M motor protection type fuses for the purpose of the short circuit protection of a motor or a starter select the proper rating in addition refer to the characteristic curves on the catalog to make the device protected from overload by a circuit breaker or a contactor It is assumed that the inrush curent of a capaci
23. a contactor into a cradle 1 Check that the contactor is in the state of open TEST Position 2 While pushing the both sides of Interlock handle to the direction of the arrows insert the contactor about 50mm into the cradle ever 3 Insert the drawout lever into a hole as shown in the fig While pushing the Interlock gt 6 Interlock push button swing the lever clockwise two times and release the ned m _ N Interlock push button 4 Turning the lever clockwise until the contactor reaches the RUN position When draw out a contactor from a cradle RUN Position 1 Check that the contactor is in the state of open RUN Position 2 Insert the drawout lever into a hole as shown in the fig While pushing the Interlock push button swing the lever counterclockwise two times and release Interlock _ the Interlock push button 4 Turning the lever counterclockwise until the contactor reaches in the TEST Interlock gt position TM 5 case of separating the contactor from the cradle pull the contactor while pushing the both sides of Interlock handle to the direction of the arrows as shown in the fig Note Check the power before connecting or disconnecting 17 Electrical circuit diagram Fixed type Continuous excitation Continuous excitation DC control 1 3 4 2 Qpeeescoscos ON E OFF Main Circuit VZb 85 5 7 9 11 13 15 A
24. ain Circuit jar OFF ii P VZb PT FUSE OPTION b DC gt 16 gt gt 18 Co 9 y 7 7 M gt 5 5 7 9 I 19 Auxiliary contact 4 Fuse checker Option V wv YV V M M 6 8 10 12 20 21 2a2b Impress the power to terminal No 1 and 2 ON OFF operating by using contacts of terminal No 3 and 4 Note User s wiring part AC control Main Circuit OPTION gt 17 21 18 5 7 9 1 19 Auxiliary contact lt _ Fuse checker Option V V 6 8 10 12 20 21 2a2b Impress the power to terminal No 1 and 2 ON OFF operating by using contacts of terminal No 3 and 4 Note User s wiring part 20 Drawout type Instantaneous excitation Instantaneous excitation DC control Main Circuit N N OPTION gt 17 gt 16 18 Impress the power to terminal No 1 and 2 IMEEM 5 ON A DC x VZb vza 11 13 Auxiliary contact C 4 0 0 4 O 0 8 lt lt I 2a2b 19 A Fuse checker Option Y 20 21 Input ON OFF operating by using No 4 terminal e Output Trip by using No 5 terminal AC equipped
25. blown out e When the fuses are selected the inrush currents arising from the starting transformers motors capacitors should be considered When the fuses are selected their usage and circuit requirements should be considered For the purpose of protection from the fault current below the lowest interrupting current of the fuse it is desirable to replace it with a fuse having lower interrupting rate or add other overcurrent relay in series e Withstand voltage of the circuit should be higher than that of a fuse that protects it If possible select the fuse whose rated current is much higher than the load current The rated current not sufficiently exceeding the normal current of the load may cause reduction in the service life Replace all three fuses in case of blowing in a fuse Determination of the rated current The rated current of the fuse must be selected properly after examination of the current time characteristics of fuses equipments and the related circuit conditions General considerations e When the fuses are selected the sufficient rated current should be considered to avoid the deterioration of the fuse element due to sustained load current in the long term fuse rated current should be higher than the sum of all load currents he estimated overload current should be within the fuse s time current characteristics The estimated overload current should not exceed the allowable overload withstand
26. c of a transformer Operation characteristic curve of a Fuse Rated interrupting current of a fuse C inrush current and time at no load of a transformer Coordination in the graph When any protection device is not installed in the secondary Zone of 1 Protection of primary side from short of a transformer circuit by a fuse e Zone of 2 Protection of a transformer e Zone of 3 Out of the scope of fuse operation e Zone of 4 Interruption is not ensured even though the fuse blows e Zone of 5 Protection of a transformer is not e Permissible overload current of a transformer point must lie to the left of the curve time current characteristic curve of a Fuse Full load current of a transformer D x Rated current of a fuse 4 e Point C inrush current and time at no load of a transformer must lie to the left of the point time current characteristic curve of a Fuse ensured even though the fuse Secondary short circuit current gt Lowest interrupting current of a fuse interrupts the circuit Point must lie to the left of the secondary short circuit current Zone of 3 4 5 No protection zone of a e Primary short circuit curent lt Rated interrupting current of a fused transformer Circuit breaker or low voltage fuse required for the transformer protection When a circuit breaker or fuse is installed in the secondary of a transformer Must meet the requirements above mention
27. currents of the equipment and the number of its events should not exceed 100 times characteristic curve of a fuse must lie to the right of those of other equipments to be protected withstand strength such as permissible let through current t of the equipments to be protected must be higher than that of a fuse e Coordination of permissible time limit Protection equipments in the line side lt Fuses lt Protection equipments in the load side e Coordination when fuses are used as back up protection Permissible let Through current of a fuse lt That of a protection equipment Use the same rating for all three phases even the differential current between phases exists 30 KERI Bg an Bi s iu d TI NH KERI 24kV Power fuse selection guides Considerations by the type of load 1 Power fuses for transformer loads fuse with sufficient rated current must be selected to avoid the deterioration of the fuse element due to permissible overload in the long term fuse s current time characteristic should cover the inrush current time of the transformer case of power transformers the symmetrical inrush curent must be within 10 times of the fuse rating and the fuse should withstand at least O 1second under the condition e Fuse rated current gt Transformer rated current The lowest interrupting current of the fuse lt Short circuit current in the primary of the fuse
28. e kV 7 2 1 Rated current A 400 Rated interupting curent 4 5 lt j Contact stroke mm 4 75 Opening speed average m s 0 6 4 M8X1 25 DP12Min M8X1 25 DP18Min Closing speed average m s 03 Contact force kg Min Dimensions Moving side weight kg 0 23 Interrupter weight kg 0 52 Max contact erosion mm 1 i Weld i Contact jets i Arc instability ii Bridge explosion 1 Shield involvement 1 Interruption Arc initiation 0 current arc mode Current zero gt Fault current Time ms Voltage phenomena i Arc re ignition ii Restrikes iii Recovery voltage iv A C voltage withstand AC arcing and interruption phenomena in vacuum 15 Accessories Fuse checker Micro switch Fuse checker is operated in case of fuse blowing and output mechanical signal at same time A micro switch is a part of N fuse checker The mechanical input signal is changed to electrical out signal by micro switch Note 19 20 NO contact 19 21 NC contact PT Potential transformer 2 each of PTs can be mounted on drawout type contactors and fuse combination type These are 100VA and 200VA PTs rated 3 6 7 2kV Rated voltage V Secondary voltage V Burden Var Frequency Hz 3300 6600 110 220 100 200 50 60 Fuse clip It is Used to install or Uninstall a fuse link to the holder Its dimensions depend on ratings N
29. ed D characteristic curve of a secondary circuit breaker or low voltage fuse 8 must lie to the left of permissible overload characteristic curve of a transformer b and under the point B characteristic curve of a secondary circuit breaker or low voltage fuse 8 must lie to the Time Current characteristic curve of a Fuse and under the Secondary short circuit current 8 Secondary short circuit curent lt Characteristic curve of a secondary circuit breaker or low voltage fuse 8 secondary circuit breaker or low voltage fuse should meet the above mentioned requirements to each branch circuit Another medium voltage protection device is required for the ensured protection against the fault happening between the secondary protection devices and the internal short circuit of a transformer the zone of 3 4 5 32 Coordination between fuse and Time Fuse Vacuum contactor Motor Inrush time of a motor Q Full load current of a motor Rated current of a fuse 9 Inrush current of a motor Locked rotor current Lowest interrupting current of a fuse Rated interrupting current of a vacuum contactor Short circuit current Rated interrupting current of a fuse motor circuit gt A The lowest operation characteristic of a vacuum contactor opening characteristic 1 1 b Operation characteristic of a vacuum contactor c Overload characterictic of a m
30. eijing Office gt gt Beijing China Address B Tower 17 FI Beijing Global Trade Center B D No 36 BeisannUanDong Lu DongCheong District Beijing 100013 P R China Tel 86 10 6462 3254 Fax 86 10 6462 3236 e mail linsz lgis com cn LS Industrial Systems Guangzhou Office gt gt Guangzhou China Address Room 1403 14F New Poly Tower 2 Zhongshan Liu Road Guangzhou China Tel 86 20 8326 6754 Fax 86 20 8326 6287 e mail zhangch lgis com cn LS Industrial Systems Chengdu Office gt gt Chengdu China Address 12Floor Guodong Building No52 Jindun Road Chengdu 610041 P R China Tel 86 28 8612 9151 Fax 86 28 8612 9236 e mail hongkonk Q vip 163 com LS Industrial Systems Qingdao Office gt gt Qingdao China Address 7B40 Haixin Guangchang Shenye Building B No 9 Shangdong Road Qingdao China Specifications in this catalog are subject to change without notice due to Tel 86 532 580 2539 Fax 8 532 583 3793 e mail bellkuk hanmail net continuous product development and improvement 2006 07 LS Medium Voltage Vacuum Contactors E 2003 04 06 2006 07 Printed in Korea STAFF
31. for MCSG Type LVC 3G LVC 6G LVC 3G LVC 6G LVC 3GB LVC 6GB LVC 3GB LVC 6GB 42LID 420D 440D 440D 420D 420D 440D 440D Rated operation voltage 3 3 6 6 oe 6 6 99 6 6 3 3 6 6 Rated voltage Ur kV 3 6 7 2 3 6 7 2 3 6 7 2 3 6 7 2 Rated operational current le A 200 400 200 400 Rated frequency fr Hz 50 60 Rated breaking current kA O 3min CO 2min CO kA 40 with fuse PF Combination Making 40kA Rated breaking Breaking 40 take over O 3min O 3min O Rated short time current kA sec 2 4kA 305 4 10 6 25 6 3kA 1s 8KA 0 5s 10kA 0 1s Rated short time peak current kApeak 0 5Cycle 60 Switching frequency AC3 op hr Continuous 1200 L Instantaneous 300 Lifetime Mechanical 10 000operations Continuous 300 L Instantaneous 50 Electrical 10 0000perations 30 Impulse withstand Up kVp 60 Dielectric strength Ud kV 1min 20 Excitation method Continuous L Instantaneous Control vollage V AC 110V 220V DC 110V Auxiliary contact Arrangement 2020 Current A 10 AC Voltage V 600max 48min Weight kg 46 62 Note HAFA HAA AoE Power fuse ratings combination type Rated Diameter Te Standard Type vollage kV Rated current A mm mm Application LFL 3 6G LIB 3 6 7 2 5 10 20 30 40 50 63 75 100 192 All application LFL 3 6G B 3 6 7 2 ae 292 DIN type 45 including transformers LFL 3G B 3 6 160 200 292 motors and capacitors LFL 6G B
32. general considerations other than the above mentioned 3 Power fuses for combination with vacuum contactors current at the intersection between a fuse characteristic curve and contactor operation curve should greater than the lowest interrupting curent of a fuse lt And the current at the cross point between a fuse curve and contactor minimum dropout curve should not greater than the rated interrupting current of a contactor Note Refer to the general considerations other than the above mentioned 4 Power fuses for capacitor loads fuse with sufficient rated curent must be selected to avoid the deterioration of the fuse element due to permissible overload in the long term fuse s current time characteristic should cover the inrush current time of the capacitor size of inrush current depends on whether or not the serial reactors and parallel capacitors exist inrush curent of the capacitor must be within 70 times of the fuse rating and the fuse should withstand at least 0 002 second under the condition Fuse rated current gt Capacitor rated current In the case of serial reactor 6 connected the inrush current must be within 5 times of the fuse rating and the fuse should withstand at least 0 1 second under the condition Note Refer to the general considerations other than the above mentioned Power fuses for transformer loads Power fuses for motor loads Note
33. hwyim 0 lsis biz Fax 82 2 2034 471 3 e LS VINA Industrial Systems Co Ltd gt gt Hanoi Vietnam Address LSIS VINA Congty che tao may dien Viet Hung Dong Anh Hanoi Vietnam Tel 84 4 882 0222 Fax 84 4 882 0220 e mail srjo hn vnn vn e LS Industrial Systems Hanoi Office gt gt Hanoi Vietnam Address Room C21 5Th Floor Horison Hotel 40 Cat Linh Hanoi Vietnam Tel 84 4 736 6270 1 Fax 84 4 736 6269 Cheong Ju Plant 1 Song Jung Dong Hung Duk Ku Dalian LS Industrial Systems Co Ltd gt gt Dalian China Ch eong Ju 361 720 Korea Address No 15 Liaohexi 3 Road Economic and Technical Development zone Dalian China Tel 86 411 8273 7777 Fax 86 411 8730 7560 e mail lixk 9 lgis com cn LS Industrial Systems Wuxi Co Ltd gt gt Wuxi China Address 102 A National High amp New Tech Industrial Development Area Wuxi Jiangsu China Tel 86 510 534 6666 Fax 86 510 522 4078 e mail Xuhg lgis com cn LS Industrial Systems International Trading Shanghai Co Ltd gt gt Shanghai China Address Room E G 12 Floor Huamin Empire Plaza 726 West Yan an Road Shanghai 200050 China Tel 86 21 6278 4291 Fax 86 21 6278 4372 e mail xuhg lgis com cn LS Industrial Systems Shanghai Office gt gt Shanghai China Address Room 1705 1707 17t Floor Xinda Commercial Building No 322 Xian Xia Road Shanghai 200336 China Tel 86 21 6208 7610 Fax 86 21 6278 4292 LS Industrial Systems B
34. ic tube which makes it possible to degas in a high temperature with excellent mechanical strength Actuating is available either at instantaneous or continuous excitation Functions for safety in connecting and disconnecting are also provided Ambient temperature 5 to 40 C Maximum temperature of 24 hour mean 35 C Altitude 1000m Humidily 24 hour measured average max 9576 RH 1 month measured average max 9076 RH IEC Pub 60470 IEC 60282 1 JEM 1167 KEMC 1126 Reliability Up graded performance Rated short time current 6 3kA 6 3kA is uossrzded to Sayeng eurvent and switching capacity 4 according to IEC60470 E Bg KERI m B Bi ALBI AEN A s BRE 7 2 MAA HI BATIK nuda agra WHIG ual 804 WE MBILI ANG UE XE JEHAN unm mm Saca gw mg gu OE INS Pee Le Sc Sess 1 HES TEN Beate rapi me AE ES BAWN PASDE APER O NH uwEg Haga Wee 8 GB NOE y 1 Bui dr E xw LE BT
35. ing to be used This enables checking contactor the cradles of G type drawout 2 positions visibly when connecting or contactors It provides high insulation disconnecting contactor level so recommended to use in contactors for MCSG Note Applied G Class Cradle Note Applied direct drawout type only ON OFF indicator To visiblly check whether power is Direct drawout carrier It is a screw sliding type drawout equipment to draw in and draw out a supplied or not contactor directly out of a panel for personal safety It is built in DB and GB type contactors Lever It is a bent lever to actuate a direct Fuse checking window Enables the visible check of a fuse like its drawout carrier by inserting and turning outside status and temperature rise in a DB and GB type contactors E fuse combination type contactor 13 Internal structure Main contact part Consists of vacuum interrupters main terminals and moving shunts that are supported by a one moulded frame that maintains insulation between phases Vacuum interrupters are operated by means of the actuating mechanism that is connected to movable parts of a vacuum interrupter with a insulation rod Actuating mechanism Designed simply without any linkage to be suited for frequent operation and long service life The actuating lever connected to a moving core of a actuating magnet that carrys out the function of a actuati
36. ng shaft moves up and down to control the contact pressure for stable operations Control method Continuous excitation During a contactor is closed the control coil is required to be excited continuously to pull the moving core magnetically In case of discontinuing the control power the moving core is to be returned by a spring because of the disappearance of magnetic force which causes the opening of a contactor Instantaneous excitation In this method the continuous exciting of a control coil to maintain the closing of a contactor is not required as the latch built in it holds the mechanism In case of manual tripping a contactor will be tripped by releasing the latch when turn on the manual trip button Instantaneous excitation Continuous excitation Line terminal Insulation mold frame Load terminal Shunt Control coil Return spring Protection cover Vacuum interrupter Insulation rod Contact spring Actuating lever Fixed core Moving core Spring guide Spring spacer Main contact part Latch mechanism Control method Control voltage Closing cureni A Trip Holding Pick up Drop out Tripping V fime ms time ms fime ms voltage voltage voltage DC 110 3 100 0 6 40 3 4 Continuous 42 AAED excitolion E AC 110 3 100 0 6 40 85 75 220 2 100 0 3 40 Instantane
37. ote Refer to fuse selection table on page 11 Auxiliary switch Auxiliary switches are 2NO 2NC as standard and additional 3NO 3NC can be added on request Position switch This enables checking contactor positions when draw in and draw out Remote checking is also possible through signaling via micro switches in each position 16 Fuse checker Micro switch LA Fuse clip Auxiliary switch Drawing operations For standard draw out types D G When draw in a contactor into a cradle lt TEST Position gt 1 Check that the contactor is in the state of open TEST Position 2 While pushing the unlock push button insert the contactor about 50mm into the cradle Unlock gt 3 Release the unlock push button and push the contactor into the cradle by the Interlock RUN position x Unlock pin m When draw out a contactor from a cradle 1 Check that the contactor is in the state of open RUN Position 2 While pushing the unlock push button draw the contactor about 50mm out of RUN Position the cradle 3 Release the unlock push button and pull the contactor from the cradle by the TEST position Unlock button Dao gt NENNEN Unlock buttton gt 108mm Stroke ace plate Unlock plate Unlock 108mm Stroke Details of TEST RUN Position For direct draw out types DB GB TEST Position gt When draw in
38. otor gt 4 Time Current characteristic curve of a Fuse gt e Blow out characteristic curve of a Fuse f Operation characteristic curve of a Fuse T 0 Q Current Operation characteristic of a vacuum contactor Time Current characteristic curve of a Fuse B The lowest operation characteristic of a vacuum contactor Operation characteristic curve of a Fuse Inrush current of a motor Inrush time of a motor e Full load current of a x Rated current of a fuse e Short circuit current lt Rated interrupting current of a fuseM Inrush curent of a motor Locked rotor current lt Rated interrupting current of ava cuum contactor 5 e Point C must lie to the left of The lowest operation characteristic of a vacuum contactor and characteristic curve of a Fuse Operation characteristic of a vacuum contactor p must lie to the left of Overload characteristic of a motor Point A must lie to the right of Lowest interrupting current of a fuse e Point B must lie to the left of Rated interrupting current of a vacuum contactor Note The current less than point A can be protected by a vacuum contactor and the current greater than point B is to be protected by a fuse 33 Operation curves
39. ous excitation L DC 110 4 5 145 3 35 LVC 3 6 With CTD AC 220 3 4 145 10 14 35 Note The values are maximum allowable currents in case of using CTD voltage increment considered 14 TRI Vacuum interrupters MEC Features Vacuum interrupters In the closed position normal current flows H Moving electrode through the interrupter When a fault occur Moving electrode terminal and interruption is required the contacts are quickly separated The are which is oriented ts Bellows between surfaces of contact shall diffuse at Bellows shield the contact structure of flat shape It prevents local heating and damage The arc burns in Arc shield an ionized metal vapor which condenses on Cua the surrounding metal shield Fixed electrode terminal The arc is extinguished and vapor production IN Fixed electrode is ceased at current zero The metal vapor External view Internal structure plasma is very rapidly dispersed cooled recombined and deionized and the metal LS vacuum interrupters consists of spiral contact vapor products are quickly condensed so that the material of which is CuCr to provide a long service life and the contacts withstand the transient recovery high withstand voltage characteristic voltage e 114 5 E Rati ngs Fixed electrode 18 5 gal Rated voltag
40. tor is 71 times of its rated current for 0 002 second The rated current of a fuse is selected to carry continuously the current of 1 43 times of rated current of a capacitor In case service life of more than 1000 operations is required select in the M motor protection type fuse table above mentioned comments are according to KS Korean Industrial Standard and subject to the real situation DIN Type fuse 29 Power fuse Power fuse LS Prime MEC power fuses are designed to protect equipments from fault curent such as short circuit and generally used for the protection the circuits of transformers capacitors and motors they protect For further safety and reliability the elements inside of fuses are made of silver and high quality quartzs and and ceramic are used for magnetic rods and tubes respectively LS medium voltage vacuum contactors using 1 vacuum interrupters manufactured with worldclass technology are type tested in LS PT amp T that is accredited high power test lab by worldclass KOLAS To ensure the performance they installed in vacuum contactor are tested according to IEC 60282 1 in LS PT amp T that is accredited high power test lab by worldclass KOLAS Considerations in application Power fuses are suitable for the protection from a short circuit Overload curent will not protected Reset or re use after blowing is not possible Fuse reset or re use is not possible after fused are
41. trip button Drawout carrier Direct drawout carrier Interlock lever D Interlock button Hole for Interlock lever insertion M Test Run indicator D Cradle CTD Condensor trip device D Fuse case Safety components CTD Condensor Trip Device CTD 110 220 SWI Y For discharge 315V 400uF AC input 450 160uF C3 CTD is built as standard in the contactor with AC control of instantaneous Control circuit diagram Terminal excitation so that the contactor can be tripped within 30 seconds in the event of an electricity failure The automatic trip 124 circuit in the event of an electricity failure is to be built by a customer 117 kaing mich och CONDENSER TRIP DEVICE Type CTD 100 CTD 200 eee 2 Rated input voltage V 100 110 200 220 A Frequency Hz 50 60 50 60 ep yes ese Rated impulse voltage V 140 155 280 310 EC c Dc Charging time Within 5sec Within5sec 1 Trip Max 30sec Max 30sec possible fime 5 Dimensions Input vollage range 85760 11076 8590 1104 Capacitor rating uF 400 160 Fuse case Counter Made of high strength BMC resin to offer This is ON OFF operation counter by superior insulation and safety D Note Applied fuse combination type using 5 digit Bushing Test Run position indicator It is mono block bush

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