Related Manuals for ABB BUE
Summary of Contents for ABB BUE
- Page 1 1ZSC000498-ABH en, Rev. 1 Motor-drive mechanisms, types BUE and BUL2 Maintenance guide...
- Page 2 Any specific application not covered should be referred directly to ABB or its authorized representative. ABB makes no warranty or representation and assumes no liability for the accuracy of the information in this document or for the use of such information. All information in this document is subject to change without notice.
- Page 3 To avoid damaging the unit, never exceed the operating limits WARNING stated in delivery documents and on rating plates. Do not alter or modify a unit without first consulting ABB. Before starting any work inside the motor-drive mechanism, the auxiliary power must be switched off.
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Page 5: Table Of Contents
3.4 Counter ........................13 3.5 Heater ...........................13 3.6 Toothed belt ........................14 3.7 Motor cable connections ....................14 3.8 Overhaul type BUE .......................14 3.8.1 Disc brake ......................14 3.8.2 Brake for the holding contact ..................15 3.8.3 Position transmitter and other position switches .............15 3.8.4 Lubrication ......................15 3.9 Overhaul type BUL2 ......................17... -
Page 7: Introduction
1.2 Design The design and layout of the motor-drive mechanisms are shown in Figs. 1 and 2 (BUE) and Figs. 3 and 4 (BUL2). 1.3 Legend Towards motor-drive upper limit Towards motor-drive lower limit... - Page 8 Fig. 1. Cabinet layout of motor-drive mechanism, type BUE. Locking device prepared for padlock 10. Tap-change in progress indicator Emergency stop 11. Position indicator with drag hands for max. and min. Air vent position LOCAL/REMOTE switch 12. Shaft for hand crank RAISE/LOWER switch 13.
- Page 9 Arm system Brake for holding contact Drive roller One turn shaft Cam disc Toothed belt Geneva wheel Position transmitter Contact plate Motor Fig. 2. Mechanical design of motor-drive mechanism, type BUE. 1ZSC000498-ABH en, Rev. 1 | Maintenance guide BUE/BUL2 9...
- Page 10 Outgoing shaft with multi-hole coupling half 13. Door-operated switch for lamp Shaft for hand crank 14. Lamp Locking device prepared for padlock 15. Descriptions and circuit diagram (Option) Outlet 16. Hand crank 10 Maintenance guide BUE/BUL2 | 1ZSC000498-ABH en, Rev. 1...
- Page 11 Cam disc (Grease) Brake arm Geneva wheel Adjusting screw Holding contact (Grease) Bracket Brake disc Limit switch Toothed belt Multi-position switches (Grease) Fig. 4. Mechanical design of motor-drive mechanism, type BUL2. 1ZSC000498-ABH en, Rev. 1 | Maintenance guide BUE/BUL2 11...
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Page 12: Inspection
LOCAL position. Then turn the control switch to the RAISE (LOWER) position. 10. Complete the inspection by turning the switch to the REMOTE position and closing the cabinet door. 12 Maintenance guide BUE/BUL2 | 1ZSC000498-ABH en, Rev. 1... -
Page 13: Overhaul
– Heater function (Section 3.5) WARNING – Toothed belt (Section 3.6) – Cable connections (Section 3.7) – Disc brake function (Section 3.8.1 for BUE; Section 3.9.1 Before starting any work inside the motor-drive for BUL2) mechanism, the auxiliary power must be switched off. -
Page 14: Toothed Belt
(see Fig. 5). At a 10 N load the See Fig. 6. The kinetic energy in the motor and the toothed belt should yield about 5 mm on BUE, and at a 6 N load the wheels should be absorbed by the brake, and the motor- belt should yield about 2 mm on BUL2. -
Page 15: Brake For The Holding Contact
Wipe off excess lubricant. Reconnect the power supplies. Moving contact Contact arm Contact arm +0.3 -0.3 Geneva wheel Contact plate Fixed contact View A – A Fig. 7. Contact arm play. 1ZSC000498-ABH en, Rev. 1 | Maintenance guide BUE/BUL2 15... - Page 16 Grease Grease Grease Grease NOTE: The small bevel gear for the position indicator shaft must be greased. Grease Fig. 8. Lubrication points, type BUE. 16 Maintenance guide BUE/BUL2 | 1ZSC000498-ABH en, Rev. 1...
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Page 17: Overhaul Type Bul2
Roller on the brake arm in center of the notch in the cam disc Brake arm Cam disc Contra nut Adjusting screw Brake disc Min. 15 Fig. 9. Brake adjustment, type BUL2. 1ZSC000498-ABH en, Rev. 1 | Maintenance guide BUE/BUL2 17... -
Page 18: Operation Test
Hand crank back to the end-position (where the indicator flag is positioned in the middle for the BUE, and when the indicator flag shows white color for the BUL2). Operate the tap-changer electrically to the other end-position and carry out the same test procedure as above. -
Page 19: Specification Of Materials
CAUTION Materials listed in the table above without any specification of amount are included because they may cause pollution problems during de- commissioning, even in the small quantities used. 1ZSC000498-ABH en, Rev. 1 | Maintenance guide BUE/BUL2 19... - Page 20 Contact us ABB AB Components SE-771 80 Ludvika, Sweden Phone: +46 240 78 20 00 Fax: +46 240 121 57 E-Mail: sales@se.abb.com www.abb.com/electricalcomponents...