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On-Load Tap-ChangerVACUTAP VR I II III/VR I HD

Technical Data

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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 ordersare binding.

The original operating instructions were written in German.

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Table of contents

Maschinenfabrik Reinhausen 2013 32188029/02 EN VACUTAP VR I II III/VR I HD

1 General ................................................................................................................................ 71.1 On-load tap-changer designations ...................................................................................................... 7

1.2 Summary of the technical data ........................................................................................................... 9

1.3 Rated insulation level ........................................................................................................................ 16

2 Technical data .................................................................................................................. 17

2.1 Step capacity diagram VRC and VRE .............................................................................................. 17

2.2 Step capacity diagram VRD, VRF, VRG* ......................................................................................... 17

2.3 Step capacity diagram VRC, VRE electrical arc furnace operation)*................................................ 18

2.4 Step capacity diagram VRD, VRF, VRG* (electrical arc furnace operation)** .................................. 18

2.5 Step capacity diagram VRC/VRE I HD ............................................................................................. 19

2.6 Step capacity diagram VRD/VRF/VRG* I HD ................................................................................... 19

2.7 Step capacity diagram VRC/VRE I HD (electrical arc furnace operation)* ....................................... 20

2.8 Step capacity diagram VRD/VRF/VRG* I HD (electrical arc furnace operation)** ............................ 20

2.9 Rated withstand voltages of the internal insulation ........................................................................... 21

2.10 On-load tap-changer VACUTAP VRC with multiple coarse change-over selector......................... 24

3 Special designs ................................................................................................................ 26

3.1 Parallel bridges for parallel connections ........................................................................................... 26

3.2 On-load tap-changer combination VACUTAP VRC I/VR II / VRF I/VRF II for delta connection .... 26

3.3 On-load tap-changer VACUTAP VRC III 700 Y, VRC I 701/1001/1301 undVRC I HD 701/1001/1301 with multiple coarse change-over selector (up to max. of 5 coarse tap con-nections) ........................................................................................................................................... 27

4 Appendix ........................................................................................................................... 28

4.1 VACUTAP VRC/VRE type overview (727017) ............................................................................... 28

4.2 VACUTAP VRD/VRF/VRG, type overview (727016) ..................................................................... 30

4.3 VACUTAP VR, basic connection diagrams, designation of tap selector connection contacts accord-ing to MR standard (719037) ............................................................................................................ 32

4.4 VACUTAP VRF I 1001, VRD/VRF I 1301, VRF I 1001 HD, VRD/VRF I HD 1301, dimensionaldrawing (899805) .............................................................................................................................. 34

4.5 VACUTAP VRF I 1001/1301 (Um 362 kV), VRF I HD 1001/1301 (Um 362 kV), dimensional draw-ing (899806) ...................................................................................................................................... 364.6 VACUTAP VRG I 1001/1301, VRG I HD 1001/1301, dimensional drawing (899810) ................... 38

4.7 VACUTAP VRG I 1001/1301 (Um 362 kV), VRG I HD 1001/1301 (Um 362 kV), dimensional draw-ing (899811) ...................................................................................................................................... 40

4.8 VACUTAP VRF I 1601, 72.5...300 kV, dimensional drawing (786915) .......................................... 42

4.9 VACUTAP VRF I 1601, 362 kV, dimensional drawing (786916) .................................................... 44

4.10 VACUTAP VRG I 1601, 72.5...300 kV, dimensional drawing (786917) ......................................... 46

4.11 VACUTAP VRG I 1601, 362 kV, dimensional drawing (786918) ................................................... 48

4.12 VACUTAP VRF I 2602, dimensional drawing (727033) ................................................................. 50

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Maschinenfabrik Reinhausen 20134 2188029/02 ENVACUTAP VR I II III/VR I HD

4.13 VACUTAP VRF I 2602 (Um 362 kV), dimensional drawing (727034) ............................................ 52

4.14 VACUTAP VRG I 2602, dimensional drawing (727035) ................................................................ 54

4.15 VACUTAP VRG I 2602 (Um 362 kV), dimensional drawing (727036) ........................................... 56

4.16 VACUTAP VRC I 401/551/701-0/W/G, VRC I HD 401/551/701-0/W/G, dimensional drawing(899990)............................................................................................................................................ 58

4.17 VACUTAP VRE I 701-0/W/G, VRE I HD 701-0/W/G, dimensional drawing (899991) ................... 59

4.18 VACUTAP VRC I 1001-0/W/G, VRC I HD 1001-0/W/G, dimensional drawing (718306) ............... 60

4.19 VACUTAP VRE I 1001-0/W/G, VRE I HD 1001-0/W/G, dimensional drawing (718307) ............... 61

4.20 VACUTAP VRC I 1301-0/W/G, VRC I HD 1301-0/W/G, dimensional drawing (718308) ............... 62

4.21 VACUTAP VRE I 1301-0/W/G, VRE I HD 1301-0/W/G, dimensional drawing (727040) ............... 63

4.22 VACUTAP VRC I 701/VRC I HD 701 with multiple coarse change-over selector, dimensional draw-ing (718316) ...................................................................................................................................... 64

4.23 VACUTAP VRC I 1001/VRC I HD 1001 with multiple coarse change-over selector, dimensionaldrawing (718318) .............................................................................................................................. 65

4.24 VACUTAP VRC I 1301/VRC I HD 1301 with multiple coarse change-over selector, dimensionaldrawing (718321) .............................................................................................................................. 66

4.25 VACUTAP VRF II 1302, dimensional drawing (899814) ................................................................ 67

4.26 VACUTAP VRF II 1302 (Um 362 kV), dimensional drawing (899815) ........................................... 69

4.27 VACUTAP VRG II 1302, dimensional drawing (899816) ............................................................... 71

4.28 VACUTAP VRG II 1302 (Um 362 kV), dimensional drawing (899817) .......................................... 73

4.29 VACUTAP VRC III 400/550/700 Y-0/W/G, dimensional drawing (899981) .................................... 75

4.30 VACUTAP VRE III 700 Y-0/W/G, dimensional drawing (899982) .................................................. 76

4.31 VACUTAP VRD/VRF III 1000/1300 Y, dimensional drawing (899803) .......................................... 774.32 VACUTAP VRG III 1000/1300 Y, dimensional drawing (899804) .................................................. 79

4.33 VACUTAP VRC II 402/552/702-0/W/G, dimensional drawing (899989) ........................................ 81

4.34 VACUTAP VRC III 700 Y with multiple coarse change-over selector, dimensional drawing (718314)........................................................................................................................................................... 82

4.35 VACUTAP VRC III 400/550/700 Y-10191W, detailed connection diagram (ZS030355) ................ 83

4.36 VACUTAP VRE III 700 Y-10193W, detailed connection diagram (ZS030356) .............................. 84

4.37 VACUTAP VRD III 1300 Y-C/D-10191W, detailed connection diagram (ZS030201) .................... 85

4.38 VACUTAP VRG III 1300 Y-E-14271G, detailed connection diagram (ZS030202) ........................ 86

4.39 VACUTAP VRC/VRE, installation drawing (899992) ..................................................................... 87

4.40 VACUTAP VRD/VRF, installation drawing (899898) ...................................................................... 884.41 VACUTAP VRG, installation drawing (899945) .............................................................................. 89

4.42 VACUTAP VRC/VRE, connecting leads 3W, 1G, 3G, dimensional drawing (723590) .................. 90

4.43 VACUTAP VR, on-load tap-changer head (720847) ...................................................................... 91

4.44 VACUTAP VR, on-load tap-changer head with flange for pressure relief device (899946) ........... 92

4.45 VACUTAP VR, special design for bell-type tank installation (720781)........................................... 93

4.46 VACUTAP VRC/VRE, arrangement of contacts on tap selector, tap selector division 1022(899993)............................................................................................................................................ 94

4.47 VACUTAP VRC/VRE I 1001/1301, VRC/VRE I HD 1001/1301, bridges to parallel connection of tapselector connection contacts (727025) ............................................................................................. 95

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4.48 VACUTAP VR, installation position of tap selector connection contacts (727042) ........................ 96

4.49 VACUTAP VR installation position of tap selector connection contacts (743603) ......................... 97

4.50 VACUTAP VRC III 400/550/700 Y, VRE III 700 Y, arrangement of tap selector (899994) ............ 98

4.51 VACUTAP VRC I 401/551/701, VRC I HD 401/551/701, VRE I 701, VRE I HD 701, arrangement oftap selector (899995) ........................................................................................................................ 99

4.52 VACUTAP VRC/VRE I 1001, VRC/VRE I HD 1001, arrangement of tap selector (899996) ........ 100

4.53 VACUTAP VRC/VRE I 1301, VRC/VRE I HD 1301, arrangement of tap selector (727043) ........ 101

4.54 VACUTAP VR, variants of the on-load tap-changer head, gear unit swivel range and drive direction(721216).......................................................................................................................................... 102

4.55 VACUTAP VR, swivel range of gear unit (728474) ...................................................................... 103

4.56 VACUTAP VR, horizontal drive shaft (899958) ............................................................................ 104

4.57 VACUTAP VRG, horizontal drive shaft, tap selector size (899959) ............................................. 105

4.58 VACUTAP VRC/VRE III, tie-in resistors with or without potential switch (899972) ...................... 106

4.59 VACUTAP VRC II, tie-in resistors with or without potential switch (899986) ............................... 107

4.60 VACUTAP VRC/VRE I, VRC/VRE I HD, tie-in resistors with or without potential switch (718447) .... 108

4.61 VACUTAP VRC/VRE, tie-in resistor cylinder with potential switch without tie-in resistors (899973)......................................................................................................................................................... 109

4.62 VACUTAP VRD/VRF/VRG, fine tap selector connection contact and change-over selector connec-tion contact (899941) ...................................................................................................................... 110

4.63 VACUTAP VRF, bridges to parallel connection of tap selector connection contacts (786919) ... 111

4.64 VACUTAP VRG, bridges to parallel connection of tap selector connection contacts (786920) ... 112

4.65 VACUTAP VRD/VRF, tap selector size C/D, tap selector bottom depiction of the lowest live parts

(899968).......................................................................................................................................... 1134.66 VACUTAP VRG, tap selector size E, tap selector bottom depiction of the lowest live parts (899969)

......................................................................................................................................................... 1144.67 VACUTAP VRD/VRF, arrangement of potential switches/tie-in resistors (899950) ..................... 115

4.68 VACUTAP VRD/VRF I WP, VRD/VRF I HD WP, tap selector size C/D, tie-in resistor cylinder andpotential switch (899951) ................................................................................................................ 116

4.69 VACUTAP VRD/VRF I WR, VRD/VRF I HD WR, tap selector size C/D, tie-in resistor cylinder(899955).......................................................................................................................................... 117

4.70 VACUTAP VRD/VRF III WP, tap selector size C/D, tie-in resistor cylinder and potential switch(899962).......................................................................................................................................... 118

4.71 VACUTAP VRD/VRF III WR, tap selector size C/D, tie-in resistor cylinder (899964) .................. 119

4.72 VACUTAP VRD/VRF I/III WS, VRD/VRF I HD WS, tap selector size C/D, potential switch (899966)

......................................................................................................................................................... 1204.73 VACUTAP VRG I/III WS, VRG I HD WS, tap selector size E, potential switch (899967)............. 121






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4.80 VACUTAP VRD/VRF III WP, tap selector size C/D, tie-in resistor cylinder and potential switch(899963).......................................................................................................................................... 128

4.81 VACUTAP VRD/VRF III WR, tap selector size C/D, tie-in resistor cylinder and potential switch(899965).......................................................................................................................................... 129

4.82 VACUTAP VRF II 1302 WP, tap selector size C/D, tie-in resistor cylinder (728691) ................... 130

4.83 VACUTAP VRF II 1302 WR, tap selector size C/D, tie-in resistor cylinder (728690)................... 131

4.84 VACUTAP VRF I 2602 WP, tap selector size C/D, tie-in resistor cylinder (729538) .................... 132

4.85 VACUTAP VRF I 2602 WR, tap selector size C/D, tie-in resistor cylinder (729537).................... 133

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1 General


General

On-load tap-changer designations

Example: VRF I 1301 Y245 / C10 19 1W R

VRF = Type VACUTAP VRC VRC

VACUTAP VRE VRE

VACUTAP VRD VRD

VACUTAP VRF VRF

VACUTAP VRG VRG

I = Number of phases 1 phase I

2 phases II

3 phases III

1301 = Ium[A] VRC 400

VRC 550

VRC, VRE 700

VRC, VRE, VRD, VRF, VRG 1000


VRF, VRG 1600

VRF, VRG 2600

1301 = Number of parallel main switching con-tacts

1 (3-phase Y) 0

1 (1-phase) 1

2 (1-phase) 2

3 (1-phase) 3

Y = Applications For use with neutral point only Y

245 = Um[kV] VRC, VRE, VRD, VRF, VRG 72.5





VRF, VRG 362

C = Tap selector size VRC, VRE B

VRC VRE, VRD, VRF CVRC, VRE, VRD, VRF D

VRC, VRE DE

VRG E

10 = Maximum number of operating posi-tions without change-over selector

10 10

12 12

14 14

16 16

18 18

1

1.1

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1 General


19 = Maximum number of operating posi-tions with change-over selector

19 19

23 23

27 27

31 31

35 35

1W = Mid-positions 0 mid-positions (without change-over selector)

0

1 mid-position 1

3 mid-positions 3

1W = Change-over selector Reversing change-over selector W

Coarse tap connection G

R = Tie-in measures Tie-in resistor R

Potential switch SPotential switch with tie-in resistor P

Table 1: Explanation of type designation

If intended to be used in applications with increased number of tap-changeoperations, the on-load tap-changer is also available as VACU-TAP VR I HD.

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1 General


Summary of the technical data

VACUTAP VRC/VRD I

On-load tap-changer VRC I 401 VRC I 551 VRC I 701 VRC I 1001 VRC I 1301

VRD I 1301

Number of phasesand application

1 1 1 1 1

Maximum ratedthrough current Ium(inA)

400 550 700 1000 1300

Rated short-time cur-rent (kA)

6 8 10 12 15

Rated duration ofshort-circuits (s)

3 3 3 3 3

Rated peak withstandcurrent (kA)

15 20 25 30 37.5

Maximum rated stepvoltage Vin(V)

1)

3300 3300 3300 3300 3300

Step capacity (PStN)(kVA)

1320 1500 1500 1500 1500

Table 2: Technical data for VACUTAP VRC/VRD I

1)The maximum rated step voltage may be exceeded by 10 % due to over-excitation of the transformer if the step capacity is limited to its rated value.

1.2

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1 General


VACUTAP VRE/VRF/VRG I

On-load tap-changer VRE I 701 VRE I 1001VRF I 1001

VRG I 1001

VRE I 1301VRF I 1301

VRG I 1301

VRF I 1601VRG I 1601

VRF I 2602

1)

VRG I 26021)


1 1 1 1 1


700 1000 1300 1600 2600


10 12 15 19 26


3 3 3 3 3

Rated peak withstandcurrent (kA)

25 30 37.5 47.5 65


2)

4000 4000 4000 4000 4000


2800 3750 3750 3750 6000

Table 3: Technical data for VACUTAP VRE/VRF/VRG I

1)Forced current splitting by two parallel winding branches required (notavailable for VR I HD).

2)The maximum rated step voltage may be exceeded by 10 % due to over-

excitation of the transformer if the step capacity is limited to its rated value.

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1 General


VACUTAP VRC/VRF/VRG II

On-load tap-changer VRC II 402 VRC II 552 VRC II 702 VRF II 1302VRG II 1302

Number of phases and application 2 2 2 2

Maximum rated through current Ium(inA)

400 550 700 1300

Rated short-time current (kA) 6 8 10 15

Rated duration of short-circuits (s) 3 3 3 3

Rated peak withstand current (kA) 15 20 25 37.5

Maximum rated step voltage Vin(V)1) 3300 3300 3300 4000

Step capacity (PStN) (kVA) 1320 1500 1500 3000

Table 4: Technical data for VACUTAP VRC/VRF/VRG II


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1 General


VACUTAP VRC/VRE III

On-load tap-changer VRC III 400 Y VRC III 550 Y VRC III 700 Y VRE III 700 YNumber of phases and application 31) 31) 31) 31)

Maximum rated through current Ium(inA)

400 550 700 700


Rated duration of short-circuits (s) 3 3 3 3

Rated peak withstand current (kA) 15 20 25 25

Maximum rated step voltage Vin(V)2) 3300 3300 3300 4000


Table 5: Technical data for VACUTAP VRC/VRE III

1)

neutral point2)The maximum rated step voltage may be exceeded by 10 % due to over-excitation of the transformer if the step capacity is limited to its rated value.

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1 General


VACUTAP VRD/VRF/VRG III

On-load tap-changer VRD III 1000 Y VRD III 1300 Y VRF III 1000 YVRG III 1000 Y

VRF III 1300 YVRG III 1300 Y

Number of phases and appli-cation

31) 31) 31) 31)

Maximum rated through cur-rent Ium(in A)

1000 1300 1000 1300


Rated duration of short-cir-cuits (s)

3 3 3 3

Rated peak withstand current(kA)

30 37.5 30 37.5

Maximum rated step voltageVin(V)2) 3300 3300 4000 4000


Table 6: Technical data for VACUTAP VRD/VRF/VRG III

1)neutral point


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1 General


VACUTAP VRC I HD

On-load tap-changer VRC I HD401 VRC I HD551 VRC I HD701 VRC I HD1001 VRC I HD1301


1 1 1 1 1


400 550 700 1000 1300


6 8 10 12 15


3 3 3 3 3

Rated peak withstand

current (kA)

15 20 25 30 37.5


1)

3300 3300 3300 3300 3300


1320 1500 1500 1500 1500

Table 7: Technical data for VACUTAP VRC I HD


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1 General


VACUTAP VRE/VRD/VRF/VRG I HD

On-load tap-changer VRE I HD 701 VRE I HD 1001VRF I HD 1001

VRG I HD 1001

VRD I HD 1301 VRE I HD 1301VRF I HD 1301

VRG I HD 1301

Number of phases and appli-cation

1 1 1 1

Maximum rated through cur-rent Ium(in A)

700 1000 1300 1300


Rated duration of short-cir-cuits (s)

3 3 3 3

Rated peak withstand current

(kA)

25 30 37.5 37.5

Maximum rated step voltageVin(V)

1)

4000 4000 3300 4000


Table 8: Technical data for VACUTAP VRE/VRD/VRF/VRG I HD


For all on-load tap-changer variants

Rated frequency (in Hz) 50...60

Operating positions without change-over selector: maximum of 181)with change-over se-lector: maximum of 351)

Oil compartment Pressure-tight up to 0.3 bar permanent differential pressure (test pres-sure 0.6 bar), head and cover of the on-load tap-changer are vacuum-proof

Temperature range The on-load tap-changer VACUTAP VR can be operated in the ratedload range at oil temperatures of between 25 C and + 105 C andoverload up to + 115 C according to IEC 60214-1.

Dimensions Weight, displacement volume and oil content of the diverter switch oilcompartment are shown in the relevant dimension drawings.

Table 9: Technical data for VACUTAP VR

1)For more operating positions, see chapter "Special designs [26]"

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1 General


Rated insulation level

Rated insulation level On-load tap-changer 72.5 kV362 kV VRF/VRG I 1001; VRF/VRG I HD 1001

VRF/VRG I 1301; VRF/VRG I HD 1301VRF/VRG II 1302VRF/VRG I 1601VRF/VRG I 2602

72.5 kV300 kV VRC I 401/551/701; VRC I HD 401/551/701VRC I 1001; VRC I HD 1001VRC I 1301; VRC I HD 1301VRE I 1001; VRE I HD 1001VRE I 1301; VRE I HD 1301VRD I 1301; VRD I HD 1301

VRE I 701; VRE I HD 701VRC II 402/552/702

72.5 kV245 kV VRC III 400/550/700 YVRD III 1000 Y; VRD III 1300 YVRE III 700 Y; VRF/VRG III 1000 YVRF/VRG III 1300 Y

Highest voltage for equipment Vm(kV)1) 72.5 123 170 245 300 362

Rated lightning impulse withstand voltage (kV,1.2/50 s)

350 550 750 1050 1050 1175

Rated switching impulse voltage (kV) 850 850 950

Rated short-duration power frequency withstandvoltage (kV, 50 Hz, 1 min)

140 230 325 460 460 510

1)According to IEC 60214-1, chapter 3.57: highest effective value for phase-to-phase voltage in a three-phase system for which a on-load tap-changer isdesigned with respect to its insulation.

1.3

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2 Technical data


Technical data

Step capacity diagram VRC and VRE

Figure 1: Step capacities (rated voltage V i, rated through current Iu)

Step capacity diagram VRD, VRF, VRG*

* VRG: Versions identical to VRF but with tap selector size "E"

Figure 2: Step capacities (rated step voltages V i, rated through current Iu)

2

2.1

2.2

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2 Technical data


Step capacity diagram VRC, VRE electrical arc furnace op-eration)*

* Please contact MR

Figure 3: Step capacities electrical arc furnace and ladle furnace operation (EAF/LF),(rated step voltages Vi, rated through current Iu)

Step capacity diagram VRD, VRF, VRG* (electrical arc fur-nace operation)**


** Please contact MR

Figure 4: Step capacities electrical arc furnace and ladle furnace operation (EAF/LF),(rated step voltages Vi, rated through current Iu)

2.3

2.4

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2 Technical data


Step capacity diagram VRC/VRE I HD

Figure 5: Step capacities (rated step voltages V i, rated through current Iu)

Step capacity diagram VRD/VRF/VRG* I HD


Figure 6: Step capacities (rated step voltage Vi, rated through current Iu)

2.5

2.6

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2 Technical data


Step capacity diagram VRC/VRE I HD (electrical arc furnaceoperation)*

* Please contact MR

Figure 7: Step capacities electrical arc furnace and ladle furnace operation (EAF/LF),(rated step voltage Vi, rated through current Iu)

Step capacity diagram VRD/VRF/VRG* I HD (electrical arcfurnace operation)**

* Please contact MR

** VRG: Versions identical to VRF but with tap selector size "E"

Figure 8: Step capacities electrical arc furnace and ladle furnace operation (EAF/LF),(rated step voltage Vi, rated through current Iu)

2.7

2.8

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2 Technical data


Rated withstand voltages of the internal insulation

The following diagrams show the voltage stress present on the tap windingof the three primary basic connections of three-pole on-load tap-changersand single-pole on-load tap-changers.

When selecting the on-load tap-changer, you must check that the higheststress on the tap selector does not exceed the related rated withstand vol-tages.

without change-over selector with reversing change-over selector

with coarse change-over selector in (+) posi-tion

with coarse change-over selector in (-) position1* Notice: Observe maximum rated lightning impulse withstand voltage stress at a0 in mid-position!

a0 = between selected and preselected tap on the diverter switch

a1 = between fine tap selector contacts of the winding of one tap position (connected or not connected)

2.9

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2 Technical data


a = between start and end of a tapped winding and, in version with coarse winding, between start andend of a coarse winding

Note for coarse tap selector connection (-) position of the change-over selector: When loading withimpulse voltage, note the permissible withstand voltage "a" between the end of a coarse windingconnected with the K fine tap selector contact and the fine tap selector contact at the end of thetapped winding of the same phase.

b = between the fine tap selector contacts of different phases and between change-over selector con-tacts of different phases, which are connected with the beginning/end of a tapped winding or with afine 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

Insulation distances Tap selector size C Tap selector size D1) Tap selector size E

kV1.2/50 s

kV50 Hz1 min

kV1.2/50 s

kV50 Hz1 min

kV1.2/50 s

kV50 Hz1 min

a0 Maximum1502)

20 Maximum1502)

20 Maximum1502)

20

a1 150 30 150 30 150 30

a 400 85 5003) 110 670 180

b4) 400 100 5003) 150 670 180

c1 550 180 590 210 820 250

c24) 550 195 590 225 820 280

Table 10: On-load tap-changer VRD, VRF, VRG, rated withstand voltages of the internal on-load tap-changer insulation

1)Tap selectors according to basic connection diagram 10 09 1 W, 12 111W, 14 13 1 W are designed as 18 09 1 W, 18 11 1 W, 18 13 1 W. Tap se-lectors according to basic connection diagram 16 15 1 W and 18 17 1 W arenot available.

2)Varistor response voltage at 1.2/50 s lightning impulse: as of 55 kV (U100%(t)standardized U75%(t)standardized, residual voltage at 3 kA peak current: 70 kV

3)Higher values up to 550 kV on request

4)Insulation distance omitted for single-pole on-load tap-changers

Insulation distan-ces

Tap selector sizeB

Tap selector sizeC

Tap selector sizeD

Tap selector sizeDE

kV1.2/50

s

kV50 Hz1 min

kV1.2/50

s

kV50 Hz1 min

kV1.2/50

s

kV50 Hz1 min

kV1.2/50

s

kV50 Hz1 min

a0 Maxi-mum1501)

20 Maxi-mum1501)

20 Maxi-mum1501)

20 Maxi-mum1501)

20

a1 150 30 150 30 150 30 150 30

a 265 50 350 82 490 105 550 120

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2 Technical data



Tap selector sizeB

Tap selector sizeC

Tap selector sizeD

Tap selector sizeDE

b2) 265 50 350 82 490 146 550 160

c1 485 143 545 178 590 208 660 230

c22) 495 150 550 182 590 225 660 250

Table 11: On-load tap-changer VRC, VRE, rated withstand voltages of the internal on-load tap-changer insulation



The tap selector size (ID letters B, C, D, DE, E) characterizes the internal in-sulation of the tap selector, whose rated withstand voltages must be match-

ed to the requirements of the transformer winding.

The admissible maximum operating voltage on the individual tap selectordistances corresponds to half the value of the above mentioned rated short-duration power frequency withstand voltages.

without change-over selector with reversing change-over se-lector

with coarse change-over selec-tor

Tap-changeoperation

Tap selector size Tap-changeoperation

Tap selector size Tap-changeoperation

Tap selector size

10050 B/C/D/DE 10071W B/C/D/DE 10071G 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


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


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 12: Available connections (also available as 3 W, 3 G)

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2 Technical data


On-load tap-changer VACUTAP VRC with multiple coarsechange-over selector

Extremely fine voltage adjustment requires a great number of operating posi-tions which sometimes can only be achieved with a multiple coarse tappingarrangement.

The multiple coarse change-over selector is attached to both sides of thefine tap selector.

Multiple coarse change-over selector

Figure 9: Designation and definition of insulation distances

a0 = between selected and preselected tap on the diverter switch

a1 = between fine tap selector contacts of the winding of one tap posi-tion (connected or not connected)

a = between beginning and end of a tapped winding and between theconnected K contact and any points of the tapped winding of thesame phase

b = between the fine tap selector contacts of different phases and be-tween the connected K contact of one phase and any points of thetapped winding of another phase

c1 = between any coarse tappings of one phase to the diverter switchoutput terminal of the same phase

c2 = between identically-named, unconnected coarse tappings of differ-ent phases

d1 = between connected and adjacent coarse tap contacts in onephase

d2 = between unconnected, adjacent coarse tap contacts in one phase

d3 = between beginning and end of all coarse tap connections of onephase

f = between diverter switch output terminal and ground

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2 Technical data



Tap selector size B Tap selector size C Tap selector size D

kV1.2/50 s

kV50 Hz1 min.

kV1.2/50 s

kV50 Hz1 min.

kV1.2/50 s

kV50 Hz1 min.

a0 Maximum1501)

20 Maximum1501)

20 Maximum1501)

20

a1 150 30 150 30 150 30

a 265 50 350 82 450 105

B2) 265 50 350 82 450 146

c1 455 127 525 165 590 210

c22) 455 127 525 165 590 215

d1 265 50 350 82 450 105

d2 350 82 450 105 450 105

d3 350 82 450 105 490 120

Table 13: On-load tap-changer VACUTAP VRC with multiple coarse change-over selector, rated withstand voltages ofthe internal on-load tap-changer insulation



The admissible maximum operating voltage on the individual tap selectordistances corresponds to half the value of the above mentioned rated short-duration power frequency withstand voltages.

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3 Special designs


Special designs

Parallel bridges for parallel connections

Current division on the connection contacts of 2 tap selector planes only foron-load tap-changers VACUTAP VR I 1001 [95], VACUTAP VR I1601 [111] and of 3 tap selector planes only for on-load tap-changersVACUTAP VR I 1301 [95].

Parallel bridges on the tap selector connection contacts are then mandatoryif the tap winding has been wound in two or more branches and each ofthese branch taps is connected to the contacts of the tap selector.

This measure reliably prevents the following:

Introduction of circulating currents into the current paths of tap selectorand diverter switch

Commutating arc on movable tap selector contact bridges

Overvoltage between adjacent tap selector connection contacts con-nected in parallel

On-load tap-changer combination VACUTAP VRC I/VR II /VRF I/VRF II for delta connection

The on-load tap-changers VRC II 402, VRF II 1302 and VRG II 1302 can al-so be used with the single-pole on-load tap-changers VRC I 401, VRF I 1301and VRG I 1301 as two-column on-load tap-changer combinationsVRC I 401/VRC II 402, VRF I 1301/VRF II 1302 and VRG I 1301/VRG II 1302 to set the voltage for transformer windings in delta connections(the same is true with VRC I 551/VRC II 552 und VRC I 701/VRC II 702).

The tap developments for this should be provided as shown below.

3

3.1

3.2

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3 Special designs


Figure 10: On-load tap-changer combination VRC I 401 and VRC II 402 for delta con-nection

a VRC I 401 b VRC II 402

On-load tap-changer VACUTAP VRC III 700 Y,

VRC I 701/1001/1301 und VRC I HD 701/1001/1301 with mul-tiple coarse change-over selector (up to max. of 5 coarsetap connections)

Extremely fine voltage adjustment requires a great number of operating posi-tions which sometimes can only be achieved with a multiple coarse tappingarrangement.

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 thefine tap selector.

The on-load tap-changers are available (on request) for Vm= 72.5 up to max.300 kV and for 2...5 coarse tap connections (tap selector sizes B, C) or 2and 3 coarse tap connections (tap selector size D).

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4 Appendix


Appendix

VACUTAP VRC/VRE type overview (727017)

4

4.1

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4 Appendix


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4 Appendix


VACUTAP VRD/VRF/VRG, type overview (727016)4.2

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4 Appendix


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4 Appendix


VACUTAP VR, basic connection diagrams, designation oftap selector connection contacts according to MR standard(719037)

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4 Appendix


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4 Appendix


VACUTAP VRF I 1001, VRD/VRF I 1301, VRF I 1001 HD,VRD/VRF I HD 1301, dimensional drawing (899805)

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4 Appendix


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4 Appendix


VACUTAP VRF I 1001/1301 (Um 362 kV),VRF I HD 1001/1301 (Um 362 kV), dimensional drawing(899806)

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4 Appendix


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4 Appendix


VACUTAP VRG I 1001/1301, VRG I HD 1001/1301, dimen-sional drawing (899810)

4.6

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4 Appendix


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4 Appendix


VACUTAP VRG I 1001/1301 (Um 362 kV),VRG I HD 1001/1301 (Um 362 kV), dimensional drawing(899811)

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4 Appendix


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4 Appendix


VACUTAP VRF I 1601, 72.5...300 kV, dimensional drawing(786915)

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4 Appendix


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4 Appendix


VACUTAP VRF I 1601, 362 kV, dimensional drawing(786916)

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4 Appendix


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4 Appendix


VACUTAP VRG I 1601, 72.5...300 kV, dimensional drawing(786917)

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4 Appendix


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4 Appendix


VACUTAP VRG I 1601, 362 kV, dimensional drawing(786918)

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4 Appendix


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4 Appendix


VACUTAP VRF I 2602, dimensional drawing (727033)4.12

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4 Appendix


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4 Appendix


VACUTAP VRF I 2602 (Um 362 kV), dimensional drawing(727034)

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4 Appendix


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4 Appendix


VACUTAP VRG I 2602, dimensional drawing (727035)4.14

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4 Appendix


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4 Appendix


VACUTAP VRG I 2602 (Um 362 kV), dimensional drawing(727036)

4.15

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4 Appendix


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4 Appendix


VACUTAP VRC I 401/551/701-0/W/G,VRC I HD 401/551/701-0/W/G, dimensional drawing (899990)

4.16

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4 Appendix


VACUTAP VRE I 701-0/W/G, VRE I HD 701-0/W/G, dimen-sional drawing (899991)

4.17

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4 Appendix


VACUTAP VRC I 1001-0/W/G, VRC I HD 1001-0/W/G, di-mensional drawing (718306)

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4 Appendix


VACUTAP VRE I 1001-0/W/G, VRE I HD 1001-0/W/G, di-mensional drawing (718307)

4.19

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4 Appendix


VACUTAP VRC I 1301-0/W/G, VRC I HD 1301-0/W/G, di-mensional drawing (718308)

4.20

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4 Appendix


VACUTAP VRE I 1301-0/W/G, VRE I HD 1301-0/W/G, di-mensional drawing (727040)

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4 Appendix


VACUTAP VRC I 701/VRC I HD 701 with multiple coarsechange-over selector, dimensional drawing (718316)

4.22

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4 Appendix



4.23

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4 Appendix



4.24

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4 Appendix


VACUTAP VRF II 1302, dimensional drawing (899814)4.25

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4 Appendix


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4 Appendix


VACUTAP VRF II 1302 (Um 362 kV), dimensional drawing(899815)

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4 Appendix


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4 Appendix


VACUTAP VRG II 1302, dimensional drawing (899816)4.27

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4 Appendix


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4 Appendix


VACUTAP VRG II 1302 (Um 362 kV), dimensional drawing(899817)

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4 Appendix


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4 Appendix


VACUTAP VRE III 700 Y-0/W/G, dimensional drawing(899982)

4.30

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4 Appendix


VACUTAP VRD/VRF III 1000/1300 Y, dimensional drawing(899803)

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4 Appendix


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4 Appendix


VACUTAP VRG III 1000/1300 Y, dimensional drawing(899804)

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4 Appendix


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4 Appendix


VACUTAP VRC II 402/552/702-0/W/G, dimensional drawing(899989)

4.33

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4 Appendix


VACUTAP VRC III 700 Y with multiple coarse change-overselector, dimensional drawing (718314)

4.34

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4 Appendix


VACUTAP VRC III 400/550/700 Y-10191W, detailed con-nection diagram (ZS030355)

4.35

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4 Appendix


VACUTAP VRE III 700 Y-10193W, detailed connection dia-gram (ZS030356)

4.36

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4 Appendix


VACUTAP VRD III 1300 Y-C/D-10191W, detailed connec-tion diagram (ZS030201)

4.37

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4 Appendix


VACUTAP VRG III 1300 Y-E-14271G, detailed connectiondiagram (ZS030202)

4.38

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4 Appendix


VACUTAP VRC/VRE, installation drawing (899992)

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4 Appendix


VACUTAP VRD/VRF, installation drawing (899898)

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4 Appendix


VACUTAP VRG, installation drawing (899945)

4.41

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4 Appendix


VACUTAP VRC/VRE, connecting leads 3W, 1G, 3G, di-mensional drawing (723590)

4.42

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4 Appendix


VACUTAP VR, on-load tap-changer head (720847)

4.43

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4 Appendix


VACUTAP VR, on-load tap-changer head with flange forpressure relief device (899946)

4.44

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4 Appendix


VACUTAP VR, special design for bell-type tank installa-tion (720781)

4.45

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4 Appendix


VACUTAP VRC/VRE, arrangement of contacts on tap se-lector, tap selector division 1022 (899993)

4.46

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4 Appendix


VACUTAP VRC/VRE I 1001/1301, VRC/VRE I HD 1001/1301, bridges to parallel connection of tapselector connection contacts (727025)

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4 Appendix


VACUTAP VR, installation position of tap selector con-nection contacts (727042)

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4 Appendix


VACUTAP VR installation position of tap selector connec-tion contacts (743603)

4.49

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4 Appendix


VACUTAP VRC III 400/550/700 Y, VRE III 700 Y, arrange-ment of tap selector (899994)

4.50

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4 Appendix


VACUTAP VRC I 401/551/701, VRC I HD 401/551/701,VRE I 701, VRE I HD 701, arrangement of tap selector(899995)

4.51

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4 Appendix


VACUTAP VRC/VRE I 1001, VRC/VRE I HD 1001, arrange-ment of tap selector (899996)

4.52

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4 Appendix


VACUTAP VRC/VRE I 1301, VRC/VRE I HD 1301, arrange-ment of tap selector (727043)

4.53

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4 Appendix


VACUTAP VR, variants of the on-load tap-changer head,gear unit swivel range and drive direction (721216)

4.54

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4 Appendix


VACUTAP VR, swivel range of gear unit (728474)

4.55

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4 Appendix


VACUTAP VR, horizontal drive shaft (899958)

4.56

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4 Appendix


VACUTAP VRC II, tie-in resistors with or without potentialswitch (899986)

4.59

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4 Appendix


VACUTAP VRC/VRE I, VRC/VRE I HD, tie-in resistors withor without potential switch (718447)

4.60

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4 Appendix


VACUTAP VRC/VRE, tie-in resistor cylinder with potentialswitch without tie-in resistors (899973)

4.61

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4 Appendix


VACUTAP VRD/VRF/VRG, fine tap selector connectioncontact and change-over selector connection contact(899941)

4.62

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4 Appendix


VACUTAP VRF, bridges to parallel connection of tap se-lector connection contacts (786919)

4.63

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4 Appendix


VACUTAP VRG, bridges to parallel connection of tap se-lector connection contacts (786920)

4.64

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4 Appendix


VACUTAP VRD/VRF, tap selector size C/D, tap selectorbottom depiction of the lowest live parts (899968)

4.65

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4 Appendix


VACUTAP VRG, tap selector size E, tap selector bottomdepiction of the lowest live parts (899969)

4.66

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4 Appendix


VACUTAP VRD/VRF, arrangement of potential switches/tie-in resistors (899950)

4.67

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4 Appendix


VACUTAP VRD/VRF I WP, VRD/VRF I HD WP, tap selectorsize C/D, tie-in resistor cylinder and potential switch(899951)

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4 Appendix


VACUTAP VRD/VRF I WR, VRD/VRF I HD WR, tap selectorsize C/D, tie-in resistor cylinder (899955)

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4 Appendix


VACUTAP VRD/VRF III WR, tap selector size C/D, tie-in re-sistor cylinder (899964)

4.71

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4 Appendix


VACUTAP VRD/VRF I/III WS, VRD/VRF I HD WS, tap selec-tor size C/D, potential switch (899966)

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4 Appendix


VACUTAP VRG I/III WS, VRG I HD WS, tap selector size E,potential switch (899967)

4.73

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4 Appendix



4.74

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4 Appendix



4.75

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4 Appendix



4.76

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4 Appendix



4.77

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4 Appendix



4.78

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4 Appendix



4.79

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4 Appendix


VACUTAP VRD/VRF III WP, tap selector size C/D, tie-in re-sistor cylinder and potential switch (899963)

4.80

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4 Appendix


VACUTAP VRD/VRF III WR, tap selector size C/D, tie-in re-sistor cylinder and potential switch (899965)

4.81

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4 Appendix


VACUTAP VRF II 1302 WP, tap selector size C/D, tie-in re-sistor cylinder (728691)

4.82

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4 Appendix


VACUTAP VRF II 1302 WR, tap selector size C/D, tie-in re-sistor cylinder (728690)

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4 Appendix


VACUTAP VRF I 2602 WP, tap selector size C/D, tie-in re-sistor cylinder (729538)

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4 Appendix


VACUTAP VRF I 2602 WR, tap selector size C/D, tie-in re-sistor cylinder (729537)

4.85

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MR worldwide

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Reinhausen Australia Pty. Ltd.

17/20-22 St Albans Road

Kingsgrove NSW 2208

Phone: +61 2 9502 2202

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