VACUTAP® VM®, VM 300, VMS® On-load tap-changer Technical Data PDF

THE POWER BEHIND POWER. Technical data VACUTAP® VM®, VM 300, VMS®. On-load tap-changer 2332907/07 EN © All rights reserved by Maschinenfabrik Reinhausen Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited unless expressly permitted. Infrin...

THE POWER BEHIND POWER. Technical data VACUTAP® VM®, VM 300, VMS®. On-load tap-changer 2332907/07 EN © All rights reserved by Maschinenfabrik Reinhausen Dissemination and reproduction of this document and use and disclosure of its content are strictly prohibited unless expressly permitted. Infringements will result in liability for compensation. All rights reserved in the event of the granting of patents, utility models or designs. The product may have been altered since this document was published. We reserve the right to change the technical data, design and scope of supply. Generally the information provided and agreements made when processing the individual quotations and orders are binding. The product is delivered in accordance with MR's technical specifications, which are based on information provided by the customer. The customer has a duty of care to ensure the compatibility of the specified product with the customer's planned scope of application. The original operating instructions were written in German. Table of contents 1 Introduction................................................. 4 4.2.8 746219............................................................. 38 1.1 On-load tap-changer designations.............................. 4 4.2.9 746224............................................................. 39 1.1.1 Example of on-load tap-changer type 4.2.10 746226........................................................... 40 designation...................................................... 4 4.2.11 10116560......................................................... 41 1.1.2 Number of positions and basic 4.2.12 746230........................................................... 42 connection....................................................... 4 4.2.13 10117022........................................................ 44 1.2 On-load tap-changer models....................................... 5 4.2.14 765192............................................................ 45 1.3 Basic connections......................................................... 5 4.2.15 768698........................................................... 46 4.2.16 769225............................................................ 47 2 Technical data.............................................. 9 4.2.17 769226............................................................ 48 2.1 On-load tap-changer properties.................................. 9 4.2.18 768851............................................................ 49 2.2 Permissible ambient conditions................................. 12 4.3 On-load tap-changer head........................................ 50 2.3 Step capacity diagrams............................................... 12 4.3.1 893899.............................................................. 51 2.3.1 Step capacity diagram for network 4.3.2 720026............................................................. 52 application for VACUTAP® VM and 4.3.3 720027............................................................. 53 VM 300............................................................ 13 4.3.4 896762............................................................. 54 2.3.2 Step capacity diagram for electrical arc 4.3.5 893896............................................................. 55 furnace operation for VACUTAP® VM® 4.3.6 895168............................................................. 56 and VM 300................................................... 14 4.3.7 766161.............................................................. 57 2.3.3 Step capacity diagram for network 4.4 Oil compartment....................................................... 58 application for VACUTAP® VMS III............... 15 4.4.1 730336............................................................. 59 2.4 Permitted voltage stresses........................................ 16 4.5 Selector....................................................................... 60 2.4.1 Insulation distances without multiple 4.5.1 890477.............................................................. 61 coarse change-over selector......................... 16 4.5.2 898013............................................................. 62 2.4.2 Insulation distances with multiple coarse 4.5.3 730335.............................................................. 63 change-over selector..................................... 19 4.5.4 723590............................................................. 64 2.4.3 Realizable connections.................................... 21 4.5.5 891108.............................................................. 65 4.5.6 891110.............................................................. 66 3 Special designs.......................................... 23 4.5.7 891109.............................................................. 67 3.1 Bridges for parallel connection of selector 4.5.8 891107.............................................................. 68 planes....................................................................... 23 4.5.9 725649............................................................. 69 3.2 On-load tap-changer combination for delta 4.5.10 893934........................................................... 70 connection............................................................... 23 4.5.11 893935............................................................. 71 3.3 On-load tap-changer VACUTAP® 4.5.12 899598........................................................... 72 VM III 650 Y...VM I 1503 with multiple coarse 4.5.13 898804........................................................... 73 change-over selector (up to maximum 4.5.14 719733............................................................ 74 5 coarse tap connections)...................................... 24 4.5.15 898690........................................................... 75 3.4 Two-phase on-load tap-changer 4.5.16 898691............................................................ 76 VACUTAP® VM II 302/352/502/652...................... 25 4.5.17 898692........................................................... 77 3.5 On-load tap-changer for Y connection with 4.5.18 10117025........................................................ 78 open neutral point................................................... 25 4.5.19 10117029........................................................ 79 4.5.20 10116563........................................................ 80 4 Drawings................................................... 26 4.5.21 898041............................................................ 81 4.1 Type overview............................................................ 26 4.5.22 891114............................................................ 82 4.1.1 899740............................................................. 27 4.5.23 898695........................................................... 83 4.1.2 10117026.......................................................... 28 4.5.24 898694.......................................................... 84 4.1.3 765835.............................................................. 29 4.5.25 898693........................................................... 85 4.2 Dimensional drawings............................................... 30 4.6 Connection diagrams (examples)............................. 86 4.2.1 746221............................................................... 31 4.6.1 SBI_2414658.................................................... 87 4.2.2 746227............................................................. 32 4.6.2 SBI_2414670.................................................... 88 4.2.3 746222............................................................. 33 4.6.3 SBI_2414631.................................................... 89 4.2.4 746228............................................................. 34 4.6.4 SBI_2407535................................................... 90 4.2.5 746223............................................................. 35 4.6.5 SBI_2414636..................................................... 91 4.2.6 746229............................................................. 36 4.6.6 SBI_6228951.................................................... 92 4.2.7 746220............................................................. 37 4.6.7 SBI_6228952.................................................... 93 2332907/07 EN Table of contents 3 1 Introduction This technical file contains detailed information about the technical properties of the product. Basic information is given in the "Technical Data (TD 61) - General Section". 1.1 On-load tap-changer designations Each type of on-load tap-changer is available in a number of models, offering a different number of phases, maxi- mum rated through-current, highest voltage for equipment Um, selector size and basic connection diagram. The des- ignation of a particular on-load tap-changer model therefore depends on these features, hence ensuring an unmis- takable and non-interchangeable on-load tap-changer designation. 1.1.1 Example of on-load tap-changer type designation On-load tap-changer VACUTAP® VM III 650 Y–72,5 / C–10 19 1W R. Type designation VACUTAP® VM III 650 Y–72,5 / C–10 19 1W R VACUTAP® VM® On-load tap-changer type III Number of phases 650 Maximum rated through-current Irm in A and number of equipped sectors (last digit) for single-phase on- load tap-changers Y Use with neutral point 72.5 Highest voltage for equipment Um (in kV) C Selector size 10 19 1W R Basic connection Table 1: Example of designation of on-load tap-changer 1.1.2 Number of positions and basic connection The selector can be adapted to a large extent to the required number of positions and tap winding connection. The basic connections differ in terms of selector division, number of operating positions, number of mid-positions, change-over selector model and type of potential connection. Example: 10 19 1 WR Designation of basic connection 10 19 1 WR 10 Contact circle pitch of selector 19 Maximum number of operating positions 1 Number of mid-positions W Change-over selector model: W = reversing change-over selector G = coarse tap connection R Type of potential connection: R = attached tie-in resistors S = tie-in switches and tie-in resistors on board P = tie-in switches with attached tie-in resistors Table 2: Example of designation of basic connection 4 Introduction 2332907/07 EN 1.2 On-load tap-changer models You will find an overview of the on-load tap-changer models in the Type overview [►Section 4.1, Page 26] section. 1.3 Basic connections Below you will find some examples of the on-load tap-changer's basic connections with designation of selector con- nection contacts in accordance with MR standard. You will find the connections that can actually be made in the sec- tion "Permitted voltage stresses". Figure 1: Basic connections without change-over selector, VACUTAP® VM® I II III and VACUTAP® VMS® III, selector size C 2332907/07 EN Introduction 5 Figure 2: Basic connections for reversing change-over tap selector connection, VACUTAP® VM® I II III and VACUTAP® VMS® III, selector size C 6 Introduction 2332907/07 EN Figure 3: Basic connections for coarse tap selector connection, VACUTAP® VM® I II III and VACUTAP® VMS® III, selector size C 2332907/07 EN Introduction 7 Figure 4: Basic connections, VACUTAP® VM 300 and VACUTAP® VMS® III, selector size B 8 Introduction 2332907/07 EN 2 Technical data 2.1 On-load tap-changer properties Electrical data for VACUTAP® VM On-load tap-changer VM I 351 VM I 501 VM I 651 VM I 802 VM I 1002 VM I 1203 VM I 1503 Max. rated through-current Irm [A] 350 500 650 800 1 000 1 200 1 500 Rated short-time current [kA] 4.2 5 6.5 8 10 12 15 Rated duration of short-circuits [s] 3 Rated peak withstand current [kA] 10.5 12.5 16.25 20 25 30 37.5 Max. rated step voltage Uirm [V]1) 3 300 Step capacity PStN [kVA] 1 155 1 625 1 625 2 600 2 600 3 500 3 500 Rated frequency [Hz] 50...60 Table 3: Electrical data for VACUTAP® VM I On-load tap-changer VM II 352 VM II 502 VM II 652 Max. rated through-current Irm [A] 350 500 650 Rated short-time current [kA] 4.2 5 6.5 Rated duration of short-circuits [s] 3 Rated peak withstand current [kA] 10.5 12.5 16.25 Max. rated step voltage Uirm [V]1) 3 300 Step capacity PStN [kVA] 1 155 1 625 1 625 Rated frequency [Hz] 50...60 ® Table 4: Electrical data for VACUTAP VM II On-load tap-changer VM III 350 Y VM III 500 Y VM III 650 Y Max. rated through-current Irm [A] 350 500 650 Rated short-time current [kA] 4.2 5 6.5 Rated duration of short-circuits [s] 3 Rated peak withstand current [kA] 10.5 12.5 16.25 Max. rated step voltage Uirm [V]1) 3 300 Step capacity (PStN) [kVA] 1 155 1 625 1 625 Rated frequency [Hz] 50...60 Table 5: Electrical data for VACUTAP® VM III 1) The maximum rated step voltage may be exceeded by 10% due to overexcitation of the transformer if the step ca- pacity is limited to its rated value. 2332907/07 EN Technical data 9 Electrical data for VACUTAP® VM 300 On-load tap-changer VM I 301 / VM II 302 / VM III 300 Y Max. rated through-current Irm [A] 300 Rated short-time current [kA] 4 Rated duration of short-circuits [s] 3 Rated peak withstand current [kA] 10 Max. rated step voltage Uirm [V]1) 3 300 Step capacity PStN [kVA] 990 Rated frequency [Hz] 50...60 Table 6: Electrical data for VACUTAP® VM 300 1) The maximum rated step voltage may be exceeded by 10% due to overexcitation of the transformer if the step ca- pacity is limited to its rated value. Electrical data for VACUTAP® VMS® On-load tap-changer VMS III 400 Y VMS III 650 Y Max. rated through-current Irm [A] 400 650 Rated short-time current [kA] 4 6.5 Rated duration of short-circuits [s] 3 Rated peak withstand current [kA] 10 16.25 Max. rated step voltage Uirm [V]1) 1 300 Step capacity (PStN) [kVA] 520 845 Rated frequency [Hz] 50...60 ® ® Table 7: Electrical data for VACUTAP VMS III, selector size C On-load tap-changer VMS III 400 Y Max. rated through-current Irm [A] 400 Rated short-time current [kA] 4 Rated duration of short-circuits [s] 3 Rated peak withstand current [kA] 10 Max. rated step voltage Uirm [V]1) 1 300 Step capacity (PStN) [kVA] 520 Rated frequency [Hz] 50...60 Table 8: Electrical data for VACUTAP® VMS® III, selector size B 1) The maximum rated step voltage may be exceeded by 10% due to overexcitation of the transformer if the step ca- pacity is limited to its rated value. 10 Technical data 2332907/07 EN Mechanical data for VACUTAP® VM Number of operating positions Without change-over selector: maximum 18 With change-over selector: maximum 35 With multiple coarse change-over selector: maximum 107 Number of equipped sectors 1…3 Selector sizes B, C, D, DE (not with multiple coarse change-over selector) Dimensions See dimensional drawings Weight Displacement and oil volume Table 9: Mechanical data for VACUTAP® VM I II III Mechanical data for VACUTAP® VM 300 Number of operating positions Without change-over selector: maximum 14 With change-over selector: maximum 27 Number of equipped sectors 1…3 Selector sizes B Dimensions See dimensional drawings Weight Displacement and oil volume Table 10: Mechanical data for VACUTAP® VM I 301 / VM II 302 / VM III 300 Y Mechanical data for VACUTAP® VMS® Number of operating positions Without change-over selector: maximum 18 With change-over selector: maximum 35 Number of equipped sectors 3 Selector sizes C Dimensions See dimensional drawings Weight Displacement and oil volume Table 11: Mechanical data for VACUTAP® VMS® III, selector size C Number of operating positions Without change-over selector: maximum 14 With change-over selector: maximum 27 Number of equipped sectors 3 Selector sizes B Dimensions See dimensional drawings Weight Displacement and oil volume Table 12: Mechanical data for VACUTAP® VMS® III, selector size B 2332907/07 EN Technical data 11 2.2 Permissible ambient conditions Air temperature during operation -25 °C…+50 °C Temperature of the insulating fluid in operation -25°C…+105°C (up to +115°C when the transformer is in emergency opera- tion) Transport temperature, storage temperature -40 °C…+50 °C Drying temperatures See installation and commissioning instructions, "Mounting" chapter Compressive strength The on-load tap-changer oil compartment is pressure-resistant to 0.3 bar of continuous differential pressure (test pressure 0.6 bar). The head and cover of the on-load tap-changer and de-energized tap-changer are vac- uum-resistant. Insulating fluid – Unused insulating oils derived from petroleum products1) in accordance with IEC 60296 and ASTM D3487 (equivalent standards on request) – Unused insulating oils derived from other virgin hydrocarbons in accor- dance with IEC 60296, or blends of these oils with petroleum products1) in accordance with IEC 60296, ASTM D3487 or equivalent standards on request – Alternative insulating fluids, such as natural and synthetic esters or sili- cone oils, on request. 1) Gas-to-liquid oils (GTL oils) are understood in this context to be petro- leum products Table 13: Permissible ambient conditions 2.3 Step capacity diagrams 12 Technical data 2332907/07 EN 2.3.1 Step capacity diagram for network application for VACUTAP® VM and VM 300 Figure 5: Step capacities (rated step voltage Uir with rated through-current Ir) 2332907/07 EN Technical data 13 2.3.2 Step capacity diagram for electrical arc furnace operation for VACUTAP® VM® and VM 300 Figure 6: Step capacities (rated step voltage Uir with rated through-current Ir) 14 Technical data 2332907/07 EN 2.3.3 Step capacity diagram for network application for VACUTAP® VMS III Figure 7: Step capacities (rated step voltage Uir with rated through-current Ir) 2332907/07 EN Technical data 15 2.4 Permitted voltage stresses This section describes the permitted voltage stresses on the on-load tap-changer. When selecting the on-load tap-changer, you must check that the highest stresses do not exceed the related rated withstand voltages at the insulation distances. 2.4.1 Insulation distances without multiple coarse change-over selector without change-over selector with reversing change-over selector with coarse change-over selector in position + with coarse change-over selector in position - Note maximum stress with rated lightning impulse withstand voltage at a0 in mid-position! Figure 8: Insulation distances a0 Between selected and preselected tap on the diverter switch a1 Between tap selector contacts of the winding of one tap position (connected or not connected) a Between beginning and end of a tap winding and, for a coarse winding model, also between beginning and end of a coarse winding. Note for coarse tap selector connection in position (-) of the change-over selector: Especially when stressed with impulse voltage, the permissible withstand voltage "a" between the end of a coarse winding connected with the K tap selector contact and the tap selector contact at the end of the tap winding of the same phase must be adhered to. 16 Technical data 2332907/07 EN  b between the tap selector contacts of different phases and between change-over selector contacts of different phases, which are connected with the beginning/end of a tap winding or with a tap selector contact f between diverter switch output terminal and ground Additionally for coarse tap selector connection in position (+) of the change-over selector: c1 from one change-over selector contact (-) to take-off lead of the same phase c2 between change-over selector contacts (-) of different phases Abbreviations for the rated insulation level: LI Full wave lightning impulse (kV, 1.2/50 μs) LIC Chopped wave lightning impulse (kV, 1.2/50/3 µs) SI Switching impulse voltage (kV, 250/2500 µs) AC Applied voltage (kV, 50 Hz, 1 min) Rated insulation level on diverter switch Insulation distance f Um1) LI LIC SI AC 72.5 350 385 - 140 123 550 605 460 230 170 750 825 620 325 2452) 1 050 1 155 850 460 3002)3) 1 050 1 155 850 460 Table 14: Rated insulation level on diverter switch 1) In accordance with IEC 60214-1: highest effective value for phase-to-phase voltage in a three-phase system for which an on-load tap-changer is designed with respect to its insulation. 2) VACUTAP® VMS® only up to Um=170 kV 3) Only single-phase on-load tap-changers Rated insulation level of the inner insulation on the selector, VACUTAP® VM® I II III, selector sizes B, C, D, DE and VACUTAP® VMS® III, selector size C, without multiple coarse change-over selector The admissible maximum operating voltage on the individual selector distances corresponds to half the value of the values listed below for applied voltage (AC). Insulation distance Selector size B C D DE 2) a0 LI 150 1502) LIC 1652) 1652) SI 1002) 1002) AC 20 20 a1 LI 150 150 LIC 165 165 SI 100 100 AC 30 30 2332907/07 EN Technical data 17  Insulation distance Selector size B C D DE a LI 265 350 490 550 LIC 295 385 540 605 SI 175 230 320 360 AC 50 82 105 120 ) b1 LI 265 350 490 550 LIC 295 385 540 605 SI 175 230 320 360 AC 50 82 146 160 c1 LI 485 545 590 660 LIC 535 600 650 725 SI 315 355 385 430 AC 143 178 208 230 c21) LI 495 550 590 660 LIC 545 605 650 725 SI 325 360 385 430 AC 150 182 225 250 Table 15: Rated insulation level of inner insulation on the selector 1) not applicable to single-phase on-load tap-changer 2) varistor response voltage at 1.2/50 µs lightning impulse: starting at 45 kV (U100%(t)standardized ≠U75%(t)standardized), residual voltage at 3 kA peak withstand current: 56 kV Rated insulation level of the inner insulation on the selector, VACUTAP® VM 300 and VACUTAP® VMS® III, selector size B, without multiple coarse change-over selector The admissible maximum operating voltage on the individual selector distances corresponds to half the value of the values listed below for applied voltage (AC). Insulation distance Selector size B a0 LI 1501) LIC 1651) SI 1001) AC 20 a LI 300 LIC 330 SI 195 AC 70 b LI 300 LIC 330 SI 195 AC 70 18 Technical data 2332907/07 EN  Insulation distance Selector size B c1 LI 400 LIC 440 SI 260 AC 120 C2 LI 400 LIC 440 SI 260 AC 120 Table 16: Rated insulation level of inner insulation on the selector 1) varistor response voltage at 1.2/50 µs lightning impulse: starting at 45 kV (U100%(t)standardized ≠U75%(t)standardized), residual voltage at 3 kA peak withstand current: 56 kV 2.4.2 Insulation distances with multiple coarse change-over selector Figure 9: Insulation distances for VACUTAP® VM® I II III, selector sizes B, C, D, with multiple coarse change-over selector a0 Between selected and preselected tap on the diverter switch a1 Between tap selector contacts of the winding of one tap position (connected or not connected) a between beginning and end of a tap winding and between the connected K contact and any points of the tap winding of the same phase b between the tap selector contacts of different phases and between the connected K contact of one phase and any points of the tap winding of another phase c1 between any coarse tappings of one phase to the diverter switch output terminal of the same phase 2332907/07 EN Technical data 19 c2 between identically-named, unconnected coarse tappings of different phases d1 between connected and adjacent coarse tap contacts in one phase d2 between unconnected, adjacent coarse tap contacts in one phase d3 between beginning and end of all coarse tap connections of one phase f between diverter switch output terminal and ground Insulation distance f see Rated insulation level on diverter switch. Rated insulation level of the inner insulation on the selector with multiple coarse change-over selector, VACUTAP® VM® I II III, selector sizes B, C, D The admissible maximum operating voltage on the individual selector distances corresponds to half the value of the values listed below for applied voltage (AC). Insulation distance Selector size B C D a0 LI 1502) LIC 1652) SI 1002) AC 20 a1 LI 150 LIC, SI Values on request AC 30 a LI 265 350 450 LIC, SI Values on request AC 50 82 105 b1) LI 265 350 450 LIC, SI Values on request AC 50 82 146 c1 LI 455 525 590 LIC, SI Values on request AC 127 165 210 c21) LI 455 525 590 LIC, SI Values on request AC 127 165 215 d1 LI 265 350 450 LIC, SI Values on request AC 50 82 105 d2 LI 350 450 450 LIC, SI Values on request AC 82 105 105 20 Technical data 2332907/07 EN  Insulation distance Selector size B C D d3 LI 350 450 490 LIC, SI Values on request AC 82 105 120 Table 17: Rated insulation level of inner insulation on the selector with multiple coarse change-over selector 1) not applicable to single-phase on-load tap-changer 2) varistor response voltage at 1.2/50 µs lightning impulse: starting at 45 kV (U100%(t)standardized ≠U75%(t)standardized), residual voltage at 3 kA peak withstand current: 70 kV 2.4.3 Realizable connections Realizable connections with associated selector sizes, VACUTAP® VM® I II III The connections listed below can also be realized for change-over selectors with reversing change-over selectors and 3 mid-positions (3W) and for change-over selectors with coarse tap connection and 3 mid-positions (3G). Without change-over selector With reversing change-over selector With coarse change-over selector Connection Selector size Connection Selector size Connection Selector size 10050 B/C/D/DE 10071W B/C/D/DE 10071G B/C/D/DE 10060 B/C/D/DE 10081W B/C/D/DE 10081G B/C/D/DE 10070 B/C/D/DE 10091W B/C/D/DE 10091G B/C/D/DE 10080 B/C/D/DE 12101W B/C/D/DE 12101G B/C/D/DE 10090 B/C/D/DE 12111W B/C 12111G B/C 10100 B/C/D/DE 14111W D/DE 14111G D/DE 12110 B/C/D/DE 14121W B/C 14121G B/C 12120 B/C/D/DE 14131W B/C 14131G B/C 14130 B/C/D/DE 16121W D/DE 16121G D/DE 14140 B/C/D/DE 16131W D/DE 16131G D/DE 16150 B/C/D/DE 16141W B/C/D/DE 16141G B/C/D/DE 16160 B/C/D/DE 16151W B/C 16151G B/C 18170 B/C/D/DE 18151W D/DE 18151G D/DE 18180 B/C/D/DE 18161W B/C 18161G B/C 22190 B/C/D/DE 18171W B/C 18171G B/C 22200 B/C/D/DE 10191W B/C/D/DE 10191G B/C/D/DE 22210 B/C 12231W B/C/D/DE 12231G B/C/D/DE 22220 B/C 14271W B/C/D/DE 14271G B/C/D/DE 16311W B/C/D/DE 16311G B/C/D/DE 18351W B/C/D/DE 18351G B/C/D/DE Table 18: Realizable connections for VACUTAP® VM® I II III 2332907/07 EN Technical data 21 Realizable connections for VACUTAP® VMS® III, selector size C The connections listed below can also be realized for change-over selectors with reversing change-over selectors and 3 mid-positions (3W) and for change-over selectors with coarse tap connection and 3 mid-positions (3G). Connection without change-over selector Connection with reversing change-over se- Connection with coarse change-over selec- lector tor 10050 10071W 10071G 10060 10081W 10081G 10070 10091W 10091G 10080 12101W 12101G 10090 12111W 12111G 10100 14121W 14121G 12110 14131W 14131G 12120 16141W 16141G 14130 16151W 16151G 14140 18161W 18161G 16150 18171W 18171G 16160 10191W 10191G 18170 12231W 12231G 18180 14271W 14271G 16311W 16311G 18351W 18351G Table 19: Realizable connections for VACUTAP® VMS® III, selector size C Realizable connections for VACUTAP® VM 300 and VACUTAP® VMS® III, selector size B The connections identified with 1) can also be realized for change-over selectors with reversing change-over selectors and 3 mid-positions (3W) and for change-over selectors with coarse tap connection and 3 mid-positions (3G). Connection without change-over selector Connection with reversing change-over se- Connection with coarse change-over selec- lector tor 10100 10091W 10091G 12120 12111W 12111G 14140 14131W 14131G 10191W1) 10191G1) 12231W1) 12231G1) 14271W1) 14271G1) Table 20: Realizable connections for VACUTAP® VMS® III, selector size B 22 Technical data 2332907/07 EN 3 Special designs 3.1 Bridges for parallel connection of selector planes For current division on the connection contacts of 2 selector planes only for on-load tap-changers VACUTAP® VM I 802/1002 and of 3 selector planes only for on-load tap-changers VACUTAP® VM I 1203/1503. Bridges on the selector connection contacts are mandatory if the tap winding has been wound in two or more branches and each of these branch taps is connected to the contacts of the selector. This measure reliably prevents the following: – Introduction of equalizing currents into the current paths of selector and diverter switch – Commutating arc on movable selector contact bridges – Overvoltage between adjacent selector connection contacts connected in parallel 3.2 On-load tap-changer combination for delta connection Single-phase on-load tap-changers can be combined with two-phase on-load tap-changers to set the voltage of transformer windings in a delta connection. This two-column on-load tap-changer combination is known as "VM III K" ("K" for the German "Kombination"). The following on-load tap-changer combinations are available: – VM I 301 with VM II 302 – VM I 351 with VM II 352 – VM I 501 with VM II 502 – VM I 651 with VM II 652 2332907/07 EN Special designs 23 You must provide the tap windings for this as shown below: Figure 10: On-load tap-changer combination VM III K for delta connection VM I 351/VM II 352 (a = VM I 351, b = VM II 352) 3.3 On-load tap-changer VACUTAP® VM III 650 Y...VM I 1503 with multiple coarse change-over selector (up to maximum 5 coarse tap connections) Extremely fine voltage setting requires a great number of operating positions which sometimes can only be achieved with a multiple coarse tapping arrangement. For instance, 107 operating positions can be obtained by using a coarse 5-tap winding and a tapped winding with 18 taps. The multiple coarse change-over selector is attached to both sides of the tap selector. The on-load tap-changers are available for Um = 72.5 up to max. 300 kV and for 2...5 coarse tap connections (selector sizes B, C and D). 24 Special designs 2332907/07 EN 3.4 Two-phase on-load tap-changer VACUTAP® VM II 302/352/502/652 The on-load tap-changer VM II 302/352/502/652 can be supplied as a two-phase on-load tap-changer for single- phase centerpoint tap-change connections with the same technical data as on-load tap-changer VM III 300 Y, VM III 350 Y, VM III 500 Y oder VM III 650 Y. 3.5 On-load tap-changer for Y connection with open neutral point If on-load tap-changers have an open neutral point, only current transformers may be connected to the open neutral point. Otherwise impermissible overvoltages arise at the neutral point. Reactors must not be connected. i Connection of three oil vessel out- VACUTAP VM III 300/350/500/650 Y puts (= open neutral point) Current transformer connection and A) Test voltages permitted between the oil vessel output contacts neutral point formation outside on- – Rated lightning impulse withstand voltage < 140 kV (1.2/50 µS)1) load tap-changer – Rated short-duration power frequency withstand volt- 1 kV (50 Hz, 1 min) age B) Permissible maximum operating voltage between oil 1 kV (50...60 Hz) vessel output contacts 1) varistor response voltage at 1.2/50 µs lightning impulse: > 1.4 kV, residual voltage at 1000 A (8/20 µs) peak withstand current: < 3 kV, maximum permissible energy load of the varistor < 100 J Table 21: Permissible test voltages and operating voltages for VACUTAP® VM III 300/350/500/650 Y 2332907/07 EN Special designs 25 4 Drawings 4.1 Type overview 26 Drawings 2332907/07 EN  THE REPRODUCTION, DISTRIBUTION AND UTILIZATION OF THIS DOCUMENT AS WELL AS THE COMMUNICATION OF ITS CONTENTS TO OTHERS WITHOUT EXPRESS AUTHORIZATION IS PROHIBITED. OFFENDERS WILL BE HELD LIABLE FOR THE PAYMENT OF DAMAGES. ALL RIGHTS RESERVED IN THE EVENT OF THE GRANT OF A PATENT, UTILITY MODEL OR DESIGN. WITHOUT CHANGE- WITH REVERSING WITH COARSE WITH MULTIPLE COARSE OVER SELECTOR CHANGE-OVER CHANGE-OVER CHANGE-OVER SELECTOR (MG) SELECTOR SELECTOR ONLY SIZE B, C AND D INSTALLATION LENGTH h IN MM M III 350 Y *) M III 500 Y *) SELECTOR SIZE M III 600 Y max. 397 481 Um B C D/DE D [kV] 0/W/G MG 0/W/G MG 0/W/G MG VM III 350 Y *) h h h h 72,5 1894 1856 2069 2031 2524 2486 VM III 500 Y *) 123 2024 1986 2199 2161 2654 2616 VM III 650 Y 170 2154 2116 2329 2291 2784 2746 245 2254 2216 2429 2391 2884 2846 O 531 O 531 O 531 1381 SELECTOR SIZE Um C VMS III 400 Y [kV] 0/W/G 72,5 2069 VMS III 650 Y h h h 123 2199 170 2329 M I 351 *) SELECTOR SIZE M I 501 *) Um B C D/DE D M I 601 max. 397 481 [kV] 0/W/G MG 0/W/G MG 0/W/G MG h h h h VM I 351 *) 72,5 1514 1476 1589 1551 1784 1746 VM I 501 *) 123 1644 1606 1719 1681 1914 1876 170 1774 1736 1849 1811 2044 2006 VM I 651 O 531 O 531 O 531 1381 245 1874 1836 1949 1911 2144 2106 300 2026 1988 2101 2063 2296 2258 SELECTOR SIZE M II 352 © MASCHINENFABRIK REINHAUSEN GMBH 2018 Um B C D/DE M II 502 [kV] 0/W/G 0/W/G 0/W/G M II 602 max. 397 481 72,5 1704 1829 2154 h h h VM II 352 123 1834 1959 2284 VM II 502 170 1964 2089 2414 245 2064 2189 2514 VM II 652 300 2216 2341 2666 O 531 O 531 O 531 SELECTOR SIZE M I 802 Um B C D/DE D VM I 802 max. 397 481 [kV] 0/W/G MG 0/W/G MG 0/W/G MG VM I 1002 72,5 1724 1686 1799 1761 1994 1956 h h h h 123 1854 1816 1929 1891 2124 2086 170 1984 1946 2059 2021 2254 2216 245 2084 2046 2159 2121 2354 2316 SCALE - SED 1663609 000 04 300 2236 2198 2311 2273 2506 2468 O 531 O 531 O 531 1381 DOCUMENT NO. CHANGE NO. 1086956 M I 1203 SELECTOR SIZE Um B C D/DE D M I 1503 [kV] 0/W/G MG 0/W/G MG 0/W/G MG VM I 1203 max. 397 481 72,5 1934 1896 2009 1971 2204 2166 VM I 1503 h h 123 2064 2026 2139 2101 2334 2296 h h 170 2194 2156 2269 2231 2464 2426 PRODASTSCHUK 245 2294 2256 2369 2331 2564 2526 WILHELM BUTERUS NAME 300 2446 2408 2521 2483 2716 2678 O 531 O 531 O 531 1381 *) NOT AVAILABLE AS MULTIPLE COARSE CHANGE-OVER SELECTOR (MG) STAND. 16.07.2018 CHKD. 16.07.2018 DFTR. 13.07.2018 DATE SERIAL NUMBER DIMENSION IN mm ON-LOAD TAP-CHANGER OILTAP® M / VACUTAP® VM®, VMS®-C EXCEPT AS M-SELECTOR SIZE B/C/D/DE MATERIAL NUMBER SHEET NOTED SURVEY OF MODELS 8997404E 1 /1 A1  DATE NAME DOCUMENT NO. © MASCHINENFABRIK REINHAUSEN GMBH 2018 DFTR. 11.07.2018 BUTERUS SED 6185260 001 00 THE REPRODUCTION, DISTRIBUTION AND UTILIZATION OF THIS DOCUMENT AS WELL AS THE COMMUNICATION OF ITS CONTENTS TO OTHERS WITHOUT EXPRESS AUTHORIZATION IS CHKD. 16.07.2018 WILHELM CHANGE NO. SCALE PROHIBITED. OFFENDERS WILL BE HELD LIABLE FOR THE PAYMENT OF DAMAGES. ALL RIGHTS RESERVED IN THE EVENT OF THE GRANT OF A PATENT, UTILITY MODEL OR DESIGN. STAND. 16.07.2018 PRODASTSCHUK 1086956 - IN mm NOTED DIMENSION EXCEPT AS h O432 WITHOUT 150 CHANGE-OVER SELECTOR h O432 WITH 150 407 CHANGE-OVER SELECTOR SELECTOR SIZE B SURVEY OF MODELS ON-LOAD TAP-CHANGER VACUTAP® VMS® 170 123 72,5 Um [kV] VMS III 400 Y 2202 2072 1942 SELECTOR SIZE B INSTALLATION LENGHT h IN MM MATERIAL NUMBER SERIAL NUMBER SHEET 101170260E 1 / 1 A1  DATE NAME DOCUMENT NO. DFTR. 22.01.2016 RAEDLINGER SED 2416819 001 01 © MASCHINENFABRIK REINHAUSEN GMBH 2016 CHKD. 25.02.2016 TKBIRKMANN CHANGE NO. SCALE THE REPRODUCTION, DISTRIBUTION AND UTILIZATION OF THIS DOCUMENT AS WELL AS THE COMMUNICATION OF ITS CONTENTS TO OTHERS WITHOUT EXPRESS AUTHORIZATION IS STAND. 25.02.2016 PRODASTSCHUK 1072100 - PROHIBITED. OFFENDERS WILL BE HELD LIABLE FOR THE PAYMENT OF DAMAGES. ALL RIGHTS RESERVED IN THE EVENT OF THE GRANT OF A PATENT, UTILITY MODEL OR DESIGN. IN mm NOTED DIMENSION EXCEPT AS h h h O432 O432 O432 without 150 150 150 change-over selector h h h O432 O432 O432 with 150 150 150 407 407 407 change-over selector SELECTOR SIZE B SURVEY OF MODELS 245 170 123 245 170 123 72,5 245 170 123 72,5 72,5 Um [kV] Um [kV] Um [kV] VM I 301 VM II 302 VM III 300 Y ON-LOAD TAP-CHANGER VACUTAP® VM 300 2302 2202 2072 1942 1902 1802 1672 1542 2102 2002 1872 1742 Selector size B Selector size B Selector size B Installation length h in mm 7658351E MATERIAL NUMBER SERIAL NUMBER SHEET 1/1 A1 4.2 Dimensional drawings 30 Drawings 2332907/07 EN  THE REPRODUCTION, DISTRIBUTION AND UTILIZATION OF THIS DOCUMENT AS WELL AS THE COMMUNICATION OF ITS CONTENTS TO OTHERS WITHOUT EXPRESS AUTHORIZATION IS PROHIBITED. OFFENDERS WILL BE HELD LIABLE FOR THE PAYMENT OF DAMAGES. ALL RIGHTS RESERVED IN THE EVENT OF THE GRANT OF A PATENT, UTILITY MODEL OR DESIGN. Z A-B