SF 6 load break fault make switches for

SF 6 load break fault make switches for overhead networks © MV Technology - 1 3/17/2018 Insert image here SECTOS

© MV Technology - 2 - Distribution network Sectos NXB + DTU

Definition of a Switching Device A switch CAN n Open a circuit n Close a circuit n Open a Load n A switch CAN NOT Close a Fault n Open a Fault A disconnector © MV Technology - 3 - Must provide a safe isolating distance

Sectos switch-disconnector 12… 24 k. V (BIL max. 125 k. V) NXB technology Manual Conical epoxy bushings Outdoor epoxy bushings NXA technology NXBD Motor up © MV Technology - 4 - NXB 24… 36 k. V (BIL max. 170 k. V) NXA Motor up Motor down Conical epoxy bushings Manual

Sectos n NXA n 36 k. V, 630 A n NXB © MV Technology - 5 - n 12. . . 24 k. V, 630 A n NXBD n 12. . . 24 k. V, 630 A

Sectos NXA 36 k. V (38 k. V ANSI) n 2 -position load break-fault make switch n single or double spring mechanism n Manual or motor operated n © MV Technology - 6 - n Manual operation by hook stick

Sectos NXA Insulation level (IEC 60265 -1 (1998)) 36 k. V Power frequency withstand voltage, 60 sec wet - to earth and between phases - across isolating distance © MV Technology - 7 - Rated voltage 70 k. V 80 k. V Lighting impulse withstand voltage - to earth and between phases - across isolating distance 170 k. V 195 k. V

Sectos NXA Current ratings (IEC 60265 -1 (1998)) E 2 / E 3 Rated normal current 630 A Mainly active load breaking current 630 A / 400 A Number of breaking operations CO 50 / 100 Closed loop breaking current 630 A Line-charging breaking current 40 A Cable-charging breaking current 40 A Earth fault breaking current © MV Technology - 8 - Electrical endurance class 175 A Cable charging breaking current under earth fault conditions 87 A No-load transformer breaking current 20 A

Sectos NXA Short-circuit ratings (IEC 60265 -1 (1998)) E 2 / E 3 Short-time withstand current, Ith (3 s) 12, 5 k. A Peak withstand current, Idyn, peak 31, 5 k. A Short-circuit making current 31, 5 / 25 k. A Number of making operations 3/5 Mechanical endurance class M 2 Number of close-open operations 5000 Ambient air temperature limits © MV Technology - 9 - Electrical endurance class -40. . . +60 o. C Filling pressure 1. 5 bar (abs) Weight with plug-in insulators 95 kg

Sectos NXB 12, 17. 5 and 24 kv n 2 - or 3 -position load break-fault make switch n Single or double spring mechanism n Manual or motor operated n © MV Technology - 10 - n Manual operation by hook stick

Sectos NXB Insulation level (IEC 60265 -1 (1998)) Rated voltage k. V 12 17. 5 24 Power frequency withstand voltage, 60 sec wet © MV Technology - 11 - - to earth and between phases - across isolating distance k. V 28 32 38 45 50 60 Lighting impulse withstand voltage - to earth and between phases k. V - across isolating distance k. V 75 85 95 125 110 145

Sectos NXB Current ratings (IEC 60265 -1 (1998)) 630 A Mainly active load breaking current (100 CO) 630 A Line-charging breaking current 50 A Cable-charging breaking current 50 A Earth fault breaking current 50 A Cable charging breaking current under earth fault conditions © MV Technology - 12 - Rated normal current 28 A No-load transformer breaking current 6. 3 A

Sectos NXB Short-circuit ratings (IEC 60265 -1 (1998)) Short-time withstand current, Ith (3 s) 20 k. A Peak withstand current, Idyn, peak 50 k. A Short-circuit making current 50 k. A Number of making operations n 50 k. A (CL E 2) 3 - main switch 31. 5 k. A (CL E 3) 10 - earthing switch 50 k. A © MV Technology - 13 - - main switch (CL E 2) 3 - earthing switch 31. 5 k. A (CL E 3) 5

Sectos NXB Mechanical endurance (IEC 60265 -1 (1998)) Number of close-open operations n - main switch 5000 - earthing switch 1000 Ambient air temperature limits Filling pressure (abs) Weight -40. . . +60 o. C 1. 5 bar 81 kg - silicone insulators © MV Technology - 14 - - cast resin insulators 82 kg - without bushing 71 kg

Sectos NXBD n 12, 17. 5 and 24 k. V n Two switches in same housing n two switched ways and one tapped way 2 - or 3 -position load break-fault make switches n single or double spring mechanism n © MV Technology - 15 - n Manual operation by hook stick

Sectos Rating plate Silicone rubber insulators Series 400 Outer Cone bushings, M 16 Earthing terminal Hook-stick lever © MV Technology - 16 - Gas filling valve Stainless steel housing (sealed pressure system, IEC 56) Reliable position indicator Terminal pad

Details Large position indicator symbols n Reflective colours n © MV Technology - 17 - n The reliable indication of the device fulfills the design and testing of IEC 129 A 2

Details Mechanical housing made of aluminium alloy n Stainless steel spring mechanism n © MV Technology - 18 - n IPX 7

Details Manual operation, single spring mechanism n © MV Technology - 19 - n Motor operation, single spring mechanism

Details Temperature compensated gas density switch as standard n © MV Technology - 20 - n Optional gas density gauge

Details © MV Technology - 21 - n Optional low gas locking mechanism

Details Stainless steel housing n AISI 304 n © MV Technology - 22 - n Laser cut, robot welded

Details Outer cone bushings, series 400 n © MV Technology - 23 - n Flexible plug-in silicone rubber insulators

Details Hook-stick lever (3 position switch) n © MV Technology - 24 - n Hook-stick lever (2 position switch) + optional locking device

Accessories © MV Technology - 25 - n Many different types of mounting accesories

Accessories © MV Technology - 26 - n Different types of terminal pads

Current Transformer n Ring type transformer, installed around the bushings n Type: KOKU 072 G 4 n Ratio: 600/1 A n Burden/Class 3 VA / 5 P 10 0. 5 VA / 5 P 20 © MV Technology - 27 - n Standards IEC 185

DTU (Distribution Terminal Unit) n REC 501 n Digital inputs 24 VDC battery n 1… 2 contactor logic with local control push buttons and MCB’s n Place for communication device n Heating element n © MV Technology - 28 - n IP 55 stainless steel enclosure

DTU (Distribution Terminal Unit) n REC 523 n Digital inputs (15 pcs) n Analog inputs for measuring transformers and sensors (3… 9 pcs) 24 VDC battery n 1… 4 contactor logic with local control push buttons and MCB’s n Place for communication device n © MV Technology - 29 - n Heating element n IP 55 stainless steel enclosure

REC 5 xx © MV Technology - 30 - n REC 501 n REC

Desired Signals Some key signals which are desired from a remotely controlled switch Position: OPEN / CLOSE / EARTH n Operation: LOCAL / REMOTE n Gas level: Enough gas to permit safe operation n Battery status: enough to operate the switch and maintain communication n Cabinet temperature n Door alarm n Fault passage indicator n © MV Technology - 31 - n Fault passage counter n Measurements: Voltage, Current

REC 5 xx Remote-controlled equipment Compact switchgear Network Control protocol Radio REC 5 xx Public line Leased lines Optional modem RMU Optical cable Radio Modem Network control system Adapter Optional adapter Modem RS 232 DLC GSM Disconnector A Radio modem Modem A Radio modem Protocols • LON / SPA interface ( REC 501 only SPA) © MV Technology - 32 - Communication media • SPA • LON (for REC 501 with adapter) • ANSI X 3. 28 • RP 570 (REC 501) • IEC 870 -5 -101 • DNP 3. 0 • MODBUS • Others. . . • RS 232 interface • Fibre-optic connection • Radio modem • Modem (option) for - conventional radio telephone - fixed or switched cable connection - leased or public telephone lines - GSM • DLC

Feeder Automation Ready Solutions n Ready-made, fully tested packages n n © MV Technology - 33 - DTU n n Sectos REC 523 From remotly controllable packages to automatic sectionalizer functions with current and voltage logic

Feeder Automation Ready Solutions Sectos NXB switch-disconnector n Motor operating device integrated in the switch n CT’s installed around the bushings n Cable for motor control , position indication and gas density monitoring n Control box type DTU 131 including REC 523 n Optional VT’s for power supply and voltage measurement n © MV Technology - 34 - n Surge arresters recommended as an option

Vegetation, nesting birds and other animals? n The sealed enclosure eliminates risks from environmental hazards and increases the reliability of electrical distribution systems. © MV Technology - 35 - Solved by Sectos! Cali, Colombia

Salt, sand, moisture and pollution? n The enclosure of stainless steel is hermetically sealed and corrosion resistant. The hydrophobic silicone rubber insulators are well suited even to the most extreme conditions. Solved by Sectos! © MV Technology - 36 - Israel Norway China

Ice, snow and high altitudes? n © MV Technology - 37 - Finland Bolivia (3750 m) The switch inside the sealed tank in an inert SF 6 gas atmosphere is insensitive to outside pressure changes. Sectos is also practically maintenance-free. Solved by Sectos!

Tölby station outside Vaasa, Finland n SECTOS NXBD 24. Double switch-disconnectors 2 pcs. All 4 motors remote controlled from same DTU 131 operating box using REC 523 type of RTU. © MV Technology - 38 - Before