1ZSE 5492-133 en, Rev. 5
On-load tap-changers, types UC and VUC with motor-drive mechanisms, type BUE/BUL Spare parts list
This document must not be copied without our written permission, and the contents thereof must not be imparted to a third party nor be used for any unauthorized purpose. Contravention will be prosecuted.
Recommended practices ABB recommends careful consideration of the following factors for maintenance work on safety devices: Before you start any work, make sure that the personnel doing the job have read and fully understood the documents provided with the unit. To avoid damaging the unit, never exceed the operating limits stated in delivery documents and on rating plates. Do not alter or modify a unit without first consulting ABB. Follow local and international wiring regulations at all times. Use only factory authorized replacement parts and procedures.
WARNING, CAUTION and NOTE WARNING A WARNING provides information which, if disregarded, could cause injury or death. CAUTION A CAUTION provides information which, if disregarded, could cause damage to the equipment. NOTE: A NOTE provides additional information to assist in carrying out the work described.
Safety precautions WARNING This documentation is intended for procurement of spare parts only. Only personnel familiar with repairs of transformers and accessories should carry out replacement of parts. Electrical and other safety regulations at the repair site must be strictly adhered to.
Contents 1. Introduction________________________________________________________7 1.1 Type designation and serial number________________________________7 1.2 Item number_ __________________________________________________7 1.3 Name of item___________________________________________________7 1.4 Quantity_______________________________________________________7 1.5 Remarks_______________________________________________________7 2. General arrangement________________________________________________8 2.1 Standard spare parts____________________________________________8 2.2 Special spare parts______________________________________________8 3. Spare parts for on-load tap-changer___________________________________10 3.1 Type UCG______________________________________________________10 3.2 Type UCL______________________________________________________12 3.3 Types UCC and UCD____________________________________________13 3.4 Types VUCG_ __________________________________________________14 4. Accessories for on-load tap-changer___________________________________15 5. Spare parts for motor-drive mechanism, type BUE_ ______________________16 5.1 Electrical details_________________________________________________16 5.2 Mechanical details_______________________________________________18 6. Spare parts for motor-drive mechanism, type BUL_ ______________________22 6.1 Electrical details_________________________________________________22 6.2 Multi-position switches___________________________________________24 6.3 Mechanical details_______________________________________________26 7. Recommended set of spare parts for motor-drive mechanisms_____________26
1ZSE 5492-133 en, Rev. 5
7
1. Introduction This spare parts list has been compiled to help you with procurement of spares. To obtain trouble-free deliveries you should note a few things which are explained in the following text. The breakdown level and general contents of this list have been worked out to cover normal customer requests. Our spare parts sales people will be happy to assist if you require any specific item that is not included in the list. 1.1 Type designation and serial number The rating plate on the on-load tap-changer (OLTC) shows the type and serial number of the device you are ordering spares for. It is important to have this information, because the manufacture of parts gradually changes as materials and manufacturing technology improves. ABB makes every effort to supply spares that should fit your requirements. Some parts of later manufacture than those you are replacing may need some adaptation to fit into your device. Our spare parts sales people need to know the type designation and serial number to supply exactly what you require. 1.2 Item number Item numbers are shown on the drawings and lists. As you will observe, one item number is used for several items of the same general type. These items have a specific specification for each and every variant of OLTC, hence you need to specify type and serial number in addition to the item number to obtain the appropriate spare. 1.3 Name of item The name should be specified when ordering to make sure the right type of item is ordered. 1.4 Quantity The figures given represent the number of items that are fitted to one OLTC. 1.5 Remarks Information pertinent to different variants of the OLTC is given in this column. Your model should be one of those shown.
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1ZSE 5492-133 en, Rev. 5
2. General arrangement The general arrangement of an UC type on-load tap-changer is shown in Fig. 1. 2.1 Standard spare parts The rugged design of ABB OLTCs means that only the fixed and moving contacts of the diverter switch might require replacement during lifetime of the transformer. This spare parts list tells you the part number of the contacts when ordering for your replacement requirements. 2.2 Special spare parts If you need parts other than the contacts in the lists, our staff will be happy to assist you. Please use Fig. 1 as a reference when discussing your requirements. As usual, the type designation and serial number are essential for ordering.
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1ZSE 5492-133 en, Rev. 5
Diverter switch housing
Cover
Oil valve
Pressure relay
Bevel gear Position indicator
Top-section
Serial No.
Shielding-ring 1)
Earthing terminal
Draining tube
Connection flange for gas operated relay
Insulating cylinder
Insulating shaft
Diverter switch
Shielding-ring 1) Shielding-ring 2) Plug-in contacts
Transition resistors Fixed and moving contacts
Bottom section
Serial No. Guide-pins
Current terminal
Driving disc for the diverter switch
Tap selector
Bottom valve for drying process Intermediate gear Geneva gear
1) Only at impulse withstand voltage to earth of 650 kV and 1050 kV
Change-over selector
2) Not on UCG of the short type
Moving fineselector contacts
Fixed fine-selector contacts
Fig. 1. General arrangement of on-load tap-changer, type UC.
Current collector
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1ZSE 5492-133 en, Rev. 5
3. Spare parts for on-load tap-changer 3.1 Type UCG Item No.
Name of item
Quantity
Remarks
1
Contact set
1 set
UCG.E .../300 UCG.E .../500
1
Contact set
3 sets
UCG.T .../300 UCG.T .../500
1
Contact set
3 sets
UCGYD .../300 UCGYD .../500
1
Contact set
1 set
UCG.E .../600
1
Contact set
3 sets
UCG.T .../600
1
Contact set
3 sets
UCGYD .../600
1
Contact set
1 set
UCG.N .../300
1
Contact set
1 set
UCG.N .../500
1
Contact set
1 set
UCG.E .../1200
1
Contact set
3 sets
UCG.T .../1200
1
Contact set
3 sets
UCGYD .../1200
1
Contact set
1 set
UCG.N .../600
1
Contact set
1 set
UCG.E .../1500
1
Contact set
3 sets
UCG.T .../1500
1
Contact set
3 sets
UCGYD .../1500
Complete diverter switch
1
Complete tap selector
1
1ZSE 5492-133 en, Rev. 5
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Fig. 2. Diverter switch for UCG with replacement contacts.
NOTE: This picture shows a neutral point type. Single phase types do not always have Âcontacts in all the three poles of the diverter switch.
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1ZSE 5492-133 en, Rev. 5
3.2 Type UCL Item No.
Name of item
Quantity
Remarks
1
Contact set
1 set
UCL.E .../600, UCL.E .../900
3 sets
When the step voltage is outside the envelope for the 900 A type
1
Contact set
3 sets
UCL.E .../1800, UCL.E .../2400
1
Contact set
3 sets
UCL.N .../600, UCL.N .../900
1
Contact set
3 sets
UCL.T .../600, UCL.T .../900
9 sets
When the step voltage is outside the envelope for the 900 A type
1
Contact set
9 sets
UCL.T .../1800, UCL.T .../2400
1
Contact set
3 sets
UCL.B .../600, UCL.B .../900
Complete diverter switch
1
Complete tap selector
1
Fig. 3. Diverter switch for UCL with replacement contacts.
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1ZSE 5492-133 en, Rev. 5
3.3 Types UCC and UCD Item No.
Name of item
Quantity
Remarks
1
Contact set
1 set
UCC.N .../800 UCC.N .../1200 UCC.N .../1600 UCC.E .../3600 UCC.E .../4500 UCD.N .../1000 UCD.E .../2400
Complete diverter switch
1
Complete tap selector
1
Fig. 4. Diverter switch for UCC and UCD with replacement contacts.
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1ZSE 5492-133 en, Rev. 5
3.4 Types VUCG Item No.
Name of item
Quantity
Replacement set of vacuum interrupters
1 set
Remarks
fm_00301
Fig. 5. Diverter switch for VUCG with replacement set of vacuum bottles.
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1ZSE 5492-133 en, Rev. 5
4. Accessories for on-load tap-changer Item No.
Name of item
Quantity
1
Pressure relay
1
2
Pressure relay with test valve
1
3
Pressure relief valve
1
4
Oil valve
1
5
Vent
1
6
Cover for connection to oil conservator
1
7
Bottom valve key
1
Remarks
3
fm_00283
Fig. 6. Accessories (The figure shows type UCG).
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1ZSE 5492-133 en, Rev. 5
5. Spare parts for motor-drive mechanism, type BUE Item No.
Name of item
Quantity
Complete motor-drive mechanism with cabinet
1
Name of item
Quantity
Remarks
5.1 Electrical details Item No.
Remarks
1
Control selector switch
1
2
Control switch raise/lower
1
3
Motor contactor
1
Raise
4
Motor contactor
1
Lower
5
Starting contact
1
6
Maintaining contact
1
7
Motor
1
8
Limit switch
1
11
Interlocking switch
1
12
Heater 50 W
1
14
Position transmitter
1
15
Continuation contact
1
19
Motor-protective switch
1
21
Step-by-step contactor
1
26
Terminal blocks
1
27
Heater 100 W
28
Thermostat
1
29
Switch for heater
1
31
Tap-changer for current transformer
1
33
Tap-changer for voltage transformer
1
36
Lamp for cabinet light
1
37
Door-operated switch
1
83
Master switch
1
84
Follower switch
1
86
Odd-even switch
1
1ZSE 5492-133 en, Rev. 5
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fm_00136
Fig. 7. Electrical details.
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5.2 Mechanical details Item No.
Name of item
Quantity
101
Toothed belt
1
102
Conical toothed wheel
1
103
Outgoing shaft
1
104
Hand crank
1
105
Operating shaft
1
106
Gear
1
107
One turn shaft
1
108
Geneva drive with shaft
1
109
Conical toothed wheel
1
110
Hand for position indication
1
111
Coupling
1
+1 for each contact plate
112
Geneva drive with shaft
1
For position transmitter
112
Geneva drive with shaft
1
For other contact device
113
End stop, cam disc
1
114
Shear pin
1
115
Cam disc
1
116
Arm
1
117
Brake
1
118
Brake disc
1
119
Front plate
1
120
Operation counter
1
121
Pulley
1
122
Pulley
1
123
Conical toothed wheel
1
124
Cylindrical toothed wheel
1
125
Geneva wheel
1
126
Geneva wheel with arm
1
127
Contact guide device
1
128
Cam bar
1
129
Brake for maintaining contact (item No. 6)
1
130
Cam disc for starting contact (item No. 5)
1
131
Driving disc for item No. 130
1
136
Screw for end stop
1
Remarks
For double contact
1ZSE 5492-133 en, Rev. 5
19
fm_00137
Fig. 8. Mechanical details.
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1ZSE 5492-133 en, Rev. 5
Item No.
Name of item
Quantity
Remarks
132
Cabinet
1
For BUE 1
132
Cabinet
1
For BUE 2
133
Gasket for door
1
For BUE 1
133
Gasket for door
1
For BUE 2
134
Hand knob
1
135
Air vent
1
140
Cover
1
141
Gasket
1
142
Vibration damper
4
143
Coupling
1
145
Shaft for maintaining contact (item No. 6)
1
146
Shaft for starting contact (item No. 5)
1
147b
Lever
1
148
Drive
1
149
Shaft
1
150b
Toothed wheel
1
151
Drive
1
152
Shaft
1
153
Shaft
1
154
Panel
1
155
Brake disc
2
156
Spring
2
157
Brake disc
1
158
Spring
1
159b
Sleeve
1
160
Nave
1
161
Operating wire for operation counter (item No. 120)
1
180
Door with window
1
For BUE 1
180
Door with window
1
For BUE 2
For DAG motor-switch
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143
135
132
134
133
180 142
146 151
161
141 156
154
140
155 159b
157
150b 158
160 148 149 147b
152
fm_00274
153 Fig. 9. Mechanical details (cont.).
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1ZSE 5492-133 en, Rev. 5
6. Spare parts for motor-drive mechanism, type BUL Item No.
Name of item
Quantity
Complete motor-drive mechanism with cabinet
1
Remarks
6.1 Electrical details Item No.
Name of item
Quantity
Remarks
B1
Thermostat
1
1)
B2
Hygrostat
1
1)
E1
Anti-condensation heater
1
50 W
E2
Extra heater
1
100 W 1)
E3
Cabinet light, Hand lamp
1
1)
K1
Step-by-step relay
1
M1
Motor 1
1
Q1
Motor protective switch
1
Q2
Contactor, Raise
1
Q3
Contactor, Lower
1
S1
Control selector switch
1
Local-0-Remote
S2
Control switch
1
Lower-0-Raise
S3+S4
Maintaining, interlocking and auxiliary contacts
1
Raise and lower, assembled on a mounting plate
S5
Interlocking switch
1
For handcrank
S6
Limit switch, Upper tap position
1
Including mounting plate with arm and roller
S7
Limit switch, Lower tap position
1
Including mounting plate with arm and roller
S9
Door operated switch
1
1)
S10
Switch for extra heater
1
U1
Measuring amplifier
1
X1-17
Terminal blocks
1
X38
Outlet
1
1) When ordering, it must be stated for this optional item, if it was already installed in the motor-drive mechanism. If it is not the case, other assembly details will be included in the order.
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1ZSE 5492-133 en, Rev. 5
S6
S3 + S4
S7 B2 B1
S10
M1
X38
S5 K1
X1-17
U1
S2
Q3
S1
Q2 Q1
E2 E1
E3 S9 fm_00246
Fig. 10. Electrical details, type BUL.
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1ZSE 5492-133 en, Rev. 5
6.2 Multi-position switches Item No.
Name of item
S14, S24
Position transmitter, potentiometer
Quantity
Remarks
S15
Continuation contact
S20-S23
Auxiliary contacts, break before make
S25-S28
Auxiliary contacts, make before break
S86, S87
Step switch for parallel control
111.1
Coupling half
111.2
Torque disc
112
Shaft
164
Transparent cover
165
Distance screw
L=10, L=20, L=35 or L=60
166
Terminal, plug part
4-pole, 8-pole
