On-load tap-changer OILTAP R
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1 Technical Data TD 115
2 2 TD 115/02
3 Table of Contents Table of Contents 1 General Summary of the technical data Survey Technical Data Rated through-current (I u ), rated step voltage (U i ) and step capacity (P StN ) Contact life Rated withstand voltages of the internal insulation Appendix dimensional and installation drawings NOTE These technical data are intended for the calculator and designer of the transformer. These type-specific data are only valid in connection with the information contained in the general section (TD 61) since this section contains important information on such subjects as potential connection, leakage inductance, current division, and so on. Dimensional drawings and connection diagrams are subject to change without prior notice. Drawings submitted during bidding and ordering are always binding. Since the on-load tap-changer is delivered to the specifications of the transformer manufacturer, the transformer manufacturer is responsible for selecting the correct properties of the on-load tap-changer so that the requirements of the transformer are met. TD 115/02 3
4 1 General 1 General 1.1 Summary of the technical data On-load tap-changer R III 1200 Y R I 1201 R I 2002 R I ) R I 3003 Number of poles and application 3 (neutral point) Max. rated through current I um (in A) Rated short-time withstand current (in ka) Rated short-circuit duration (in s) Rated peak withstand current (in ka) Max. rated step voltage U im (in V) 1) Step capacity (P StN ) ) ) ) 6000 (in kva) Rated frequency (in Hz) 50 to 60 Operating positions Without change-over selector: max. of 18 With change-over selector: max. of 35 Rated insulation level Highest voltage for ) ) equipment U m (in kv) 5) Highest operating voltage U b ) (phase-phase) on diverter switch (in kv) Rated lightning impulse with stand voltage (in kv, 1.2 I 50) Rated switching impulse withstand voltage (in kv) AC withstand voltage (in kv, 50 Hz, 1 min.) Rated withstand voltages of see table 3 internal insulation Oil compartment Pressure-proof up to 0.3 bar continuous difference pressure (test pressure 0.6 bar), head and cover of the on-load tap-changer are vacuum-proof. Oil suction pipe Installed as standard (for details, see BA 18) Temperature range The on-load tap-changer OILTAP R can be operated in the rated load range with oil temperatures of -25 C to +105 C. Table 1 a 4 TD 115/02
5 1 General On-load tap-changer R III 1200 Y R I 1201 R I 2002 R I 2402 R I 3003 Weight (in kg) ca. without change ) over selector with change- 595 (770 4) ) 410 (500 4) ) 505 (640 4) ) 505 (640 4) ) 595 (780 4) ) over selector Displacement volume (in dm 3 ) ca kv 289 (367 4) ) 274 (353 4) ) 280 (360 4) ) 280 (360 4) ) 286 (367 4) ) 123 kv 314 (392 4) ) 299 (376 4) ) 305 (384 4) ) 305 (384 4) ) 311 (392 4) ) 170 kv 334 (412 4) ) 319 (396 4) ) 325 (404 4) ) 325 (404 4) ) 331 (412 4) ) 245 kv 354 (432 4) ) 339 (416 4) ) 345 (424 4) ) 345 (424 4) ) 351 (432 4) ) 300 kv 369 (446 4) ) 374 (453 4) ) 374 (453 4) ) 380 (461 4) ) Oil filling quantity V S and minimum volume DV 6) of the diverter switch oil compartment 72.5 kv kv kv kv kv 240 Table 1 b Notes for tables 1a and 1b: 1) The maximum rated step voltage may be exceeded by 10% due to overexcitation of the transformer if the step capacity is limited to its rated value. 2) Higher step capacities available as special design 3) Forced current division by two parallel winding branches required 4) Applies to tap selector size E 5) In accordance with VDE 0111, part 1: R.m.s. value of the phase-phase voltage for which a piece of equipment is rated for its insulation 6) Minimum volume of oil conservator for oil temperature ϑ = 30 C C: DV = 0,1 V S + 4 (dm 3 ) 7) On request 8) Oil filter unit 0F 100 (combi-filter) required, U bst > 300 kv on request 9) Rated withstand voltages comply with IEC 60214: 1989; unrestricted tests possible up to 1050 kv or 460 kv, 50 Hz, 1 min. TD 115/02 5
6 1 General 1.2 Survey E_01 Fig. 1a Survey of the on-load tap-changer designs (no. of poles, change-over selector, and installation lengths) 6 TD 115/02
7 1 General E_02 Fig. 1b Survey of the on-load tap-changer designs (no. of poles, change-over selector, and installation lengths) TD 115/02 7
8 1 General Survey of the basic connection diagrams (figures 2a, 2b, 2c) with designation of the tap selector contact terminals in accordance with MR standards. This contact terminal designation corresponds to the specifications in the on-load tap-changer dimensional drawings. Fig. 2a excerpt from E_1 8 TD 115/02
9 1 General Fig. 2b D_2 TD 115/02 9
10 1 General Fig. 2c D_3 10 TD 115/02
11 1 General Examples of connection diagrams (contact designation in acc. w. MR standards) Fig. 3 Example: On-load tap-changer R III 1200 Y C/D, basic connection diagram W TD 115/02 11
12 1 General Fig. 4 Example: On-load tap-changer R III 1200 Y E, basic connection diagram G 12 TD 115/02
13 1 General Fig. 5 Example: On-load tap-changer R I 2002 C/D, basic connection diagram W TD 115/02 13
14 1 General Fig. 6 Example: On-load tap-changer R I 3003 C/D, basic connection diagram W 14 TD 115/02
15 2 Technical Data 2 Technical Data 2.1 Rated through-current (I u ), rated step voltage (U i ) and step capacity (P StN ) On-loadtap-changer R I 2003 R III 1200 Y R I 1201 R I 2002 (Special design) R I ) R I 3003 I u (A) U i (V) P StN (kva) Table 2 Rated through-currents (I u ), related rated step voltages (U i ) and step capacities (P StN ), at highest and lowest rated step voltage of the step capacity curve (see fig. 7 and fig. 8) 1) Note: R I 2402 with forced current division by two parallel winding branches Fig. 7 Step capacities (rated step voltages U i, rated throughcurrents I u ) for on-load tap-changer R III 1200 Y, R I 1201, R I E CAUTION: Only applies to network service. When used for industrial transformers, please contact us. TD 115/02 15
16 2 Technical Data E Fig. 8 Step capacities (rated step voltages U i, rated through-currents I u ) for on-load tap-changer R I 2002, R I 2003 (= special design), R I 2402, R I Note: 1) R I 2402 with forced current division by two parallel winding branches. CAUTION: Only applies to network service. When used for industrial transformers, please contact us. 16 TD 115/02
17 2 Technical Data 2.2 Contact life The mean expected contact life of the arcing diverter switch contacts can be estimated based on the relative load (I u / I um ) as shown in figure 9. Since actual contact life in individual cases depends on many influencing factors while in service, only estimations can be given (not applicable to constant current service). The inspection regulations must be observed. Fig. 9 Expected mean contact life under average load n Number of operations I u Rated through-current I um Max. rated through-current KHW TD 115/02 17
18 2 Technical Data 2.3 Rated withstand voltages of the internal insulation Fig. 10 shows diagrams of the voltage stress present on the tap winding of the three primary basic connections of threepole on-load tap-changers and single-pole on-load tap-changers. When selecting the on-load tap-changer, a check must be made to determine whether the highest stress on the tap selector does not exceed the related rated withstand voltages. Without change-over selector With reversing switch With coarse tap selector in (+) - position With coarse tap selector in (-) - position M CAUTION Adhere to the maximum rated lightning impulse withstand voltage stress on a0 in mid-position. a0 = Between preselected and selected tapping on the diverter switch a1 = Between tap selector contacts of the winding of one tap position (connected or not) a = Between beginning and end of a tapped winding and, with coarse tap winding, between beginning and end of a coarse tap winding. Note for coarse tapping arrangement in (-) -position of the change-over selector: When stressed with impulse voltage, the permissible withstand voltage a must be adhered to between the end of a coarse tap winding connected with the K tap selector contact and the tap selector contact at the end of the tapped winding of the same phase. 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 tapped winding or with a tap selector contact. f = Between diverter switch terminal and ground Additional for coarse tapping arrangement in (+) - position of the change-over selector: c1 = From one (-) -change-over selector contact to terminal of the same phase. c2 = Between (-) -change-over selector contacts of different phases Fig. 10 Rated withstand voltages 18 TD 115/02
19 2 Technical Data Insulation Tap selector size C Tap selector size D 1) Tap selector size E distances kv 1.2I50 kv, 50 Hz, 1 min kv 1.2I50 kv, 50 Hz, 1 min kv 1.2I50 kv, 50 Hz, 1 min a0 U b 72.5 kv: 140 kv 1.2I50; 30 kv, 50 Hz, 1 min / U b >72.5 kv: 80 kv 1.2I50; 3 x U St a a ) b 3) ) c ) c Table 3 Note: Rated withstand voltages (in kv) of the internal insulation of the tap selector 1) Tap selectors in accordance with basic connection diagrams W, W, W are designed as W, W, W. Tap selectors in accordance with basic connection diagrams W and W are not possible. 2) Higher values up to 550 kv on request 3) Omitted for on-load tap-changers R I 1201, R I 2002/2402, R I 3003 The tap selector size (ID letters C, D, E) characterizes the internal insulation of the tap selector whose rated withstand voltages must be adjusted to the requirements of the transformer winding. The permissible maximum service voltage along the individual tap selector paths is half the AC withstand voltages listed in table 3. TD 115/02 19
20 3 Appendix 3 Appendix Dimensional drawings III 1200 Y, tap selector size C/D, E , I 1201, tap selector size C/D, E , I 2002, tap selector size C/D, E , I 2402, tap selector size C/D, E , I 3003, tap selector size C/D, E , Tap selector and change-over selector terminal contacts, tap selector size E Installation drawings Tap selector size C/D Tap selector size E Additional drawings On-load tap-changer head On-load tap-changer cover with mounting flange for pressure relief valve Versions of the on-load tap-changer head, swiveling range of gear unit Special design for installation in bell-type tanks Horizontal drive shaft, tap selector size C/D, E , Jumpers for parallel connection of tap selector terminal contacts for on-load tap-changer OILTAP R I 2002, R I 3003, selector size C/D, E , Tap selector bottom, shielding, tap selector size C/D Tap selector bottom, tap selector size E Tie-in resistors, tap selector size C/D , Potential switch, tap selector size C/D, E , Additional drawings for on-load tap-changer TD 115/02
21 E R III C/D, dimension drawing TD 115/02 21
22 E R III E, dimension drawing 22 TD 115/02
23 E R I C/D, dimension drawing TD 115/02 23
24 E R I E, dimension drawing 24 TD 115/02
25 E R I C/D, dimension drawing TD 115/02 25
26 E R I E, dimension drawing 26 TD 115/02
27 E R I C/D, with forced current division with two parallel winding branches, dimension drawing TD 115/02 27
28 E R I E, with forced current division with two parallel winding branches, dimension drawing 28 TD 115/02
29 E R I C/D, dimension drawing TD 115/02 29
30 E R I E, dimension drawing 30 TD 115/02
31 E Tap selector size E, tap selector and change-over selector terminal contacts TD 115/02 31
32 E Tap selector size C/D, installation drawing 32 TD 115/02
33 E Tap selector size E, installation drawing TD 115/02 33
34 893899AE On-load tap-changer OILTAP MS, M, R, RM On-load tap-changer head, centric drive 34 TD 115/02
35 E On-load tap-changer OILTAP MS, M, R, RM With flange for pressure relief valve TD 115/02 35
36 E Versions of the on-load tap-changer head, swiveling range and drive direction of the gear unit 36 TD 115/02
37 E On-load tap-changer OILTAP MS, M, R, RM Special design for installation in bell-type tank O-Ring ,7 Lifting device Suction pipe Drilling hole in sectional plane Transformer cover O-Ring Level traverse Guiding ring with U m = 170 kv, 245 kv, 300 kv Supporting flange Level traverse Z = Guiding pin Drive side of the tap selector TD 115/02 37
38 E On-load tap-changer OILTAP MS, M, R, RM Horizontal drive shaft (limit dimensions) Tap selector size C/D, centric drive 38 TD 115/02
39 E Horizontal drive shaft (limit dimensions) Tap selector size E, centric drive TD 115/02 39
40 E R I 2002, R I 3003, tap selector size C/D Jumpers for parallel connection of tap selector terminal contacts 40 TD 115/02
41 E R I 2002, R I 3003, tap selector size E Jumpers for parallel connection of tap selector terminal contacts TD 115/02 41
42 E On-load tap-changeroiltap R Tap selector size C/D, tap selector bottom shown with the lowest parts connected to the voltage, standard design without grading ring, special design with grading ring 42 TD 115/02
43 E Tap selector size E, tap selector bottom shows lowest parts connected to voltage TD 115/02 43
44 E Tap selector size C/D, principal arrangement of potential switch and tie-in resistors 44 TD 115/02
45 M Tie-in resistor cylinder R I to WP, tap selector size C/D, U m = 72.5 kv to 300 kv, 2 x 14 to 2 x 18 resistors TD 115/02 45
46 M Tie-in resistor cylinder R I to WP, tap selector size C/D, U m = 72.5 kv to 300 kv, 2 x 3, 2 x 5, to 2 x 13 resistors 46 TD 115/02
47 M Tie-in resistor cylinder R I to WP, tap selector size C/D, U m = 72.5 kv to 300 kv, 2 x 4, 2 x 6 to 2 x 12 resistors TD 115/02 47
48 M Tie-in resistor cylinder R I to WP, tap selector size C/D, U m = 72.5 kv to 300 kv, 3 to 26 resistors 48 TD 115/02
49 M Tie-in resistor cylinder R I to WR, tap selector size C/D, U m = 72.5 kv to 300 kv, 2 x 14 to 2 x 18 resistors TD 115/02 49
50 M Tie-in resistor cylinder R I to WR, tap selector size C/D, U m = 72.5 kv to 300 kv, 2 x 3, 2 x 5, to 2 x 13 resistors 50 TD 115/02
51 M Tie-in resistor cylinder R I to WR, tap selector size C/D, U m = 72.5 kv to 300 kv, 2 x 4, 2 x 6, to 2 x 12 resistors TD 115/02 51
52 M Tie-in resistor cylinder R I to WR, tap selector size C/D, U m = 72.5 kv to 300 kv, 3 to 26 resistors 52 TD 115/02
53 M Tie-in resistor cylinder R III 1200 WP, tap selector size C/D, U m = 72.5 kv to 245 kv, 3 x 2 to 3 x 7 resistors TD 115/02 53
54 M Tie-in resistor cylinder R III 1200 WP, tap selector size C/D, U m = 72.5 kv to 245 kv, 3 x 8 to 3 x 10 resistors 54 TD 115/02
55 M Tie-in resistor cylinder R III 1200 WR, tap selector size C/D, U m = 72.5 kv to 245 kv, 3 x 2 to 3 x 8 resistors TD 115/02 55
56 M Tie-in resistor cylinder R III 1200 WR, tap selector size C/D, U m = 72.5 kv to 245 kv, 3 x 9 to 3 x 11 resistors 56 TD 115/02
57 M Potential switch R III 1200 WS, R I to WS, tap selector size C/D, U m = 72.5 kv to 300 kv TD 115/02 57
58 M Potential switch R III 1200 WS, R I to WS, tap selector size E, U m = 72.5 kv to 300 kv 58 TD 115/02
59 E Additional drawings for on-load tap-changer Basic connection diagrams Tap selector and change-over selector terminal contacts, tap selector size E Tap selector bottom, shielding, tap selector size C/D Tap selector bottom, tap selector size E Versions of the on-load tap-changer head Horizontal drive shaft, tap selector size C/D Horizontal drive shaft, tap selector size E Installation drawing, tap selector size C/D Installation drawing, tap selector size E On-load tap-changer head TD 115/02 59
60 Maschinenfabrik Reinhausen GmbH Phone Falkensteinstrasse 8 Fax Regensburg, Germany sales@reinhausen.com Please note: The data in our publications may differ from the data of the devices delivered. We reserve the right to make changes without notice. TD 115/02 en 0903/1000 F Printed in Germany
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