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Summary of Contents for ABB UBB
- Page 1 1ZSE 5492-156 en, Rev. 4 On-load tap-changers, type UBB User’s manual...
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Page 2: Original Instruction
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: Manufacturer's Declaration
Manufacturer’s declaration The manufacturer ABB AB Components SE-771 80 LUDVIKA Sweden Hereby declares that The products On-load tap-changers, type UB with motor-drive mechanisms, types BUE and BUL comply with the following requirements: By design, the machine, considered as a component of a mineral oil filled power transformer, complies with the requirements of •... - Page 4 CAUTION indicates a potentially hazardous situation, which if not avoided may result in minor or moderate injury. It may also be used to alert of unsafe practices. CAUTION may also indicate property-damage-only hazards. 4 User's manual UBB | 1ZSE 5492-156 en, Rev. 4...
- Page 5 – In case of a failure in power supply for the motor-drive mechanism, it is possible to handcrank the tap-changer. A specialist is a service engineer from ABB or an authorized Put the handcrank on the shaft. Make sure it has entered person trained by ABB for maintenance work on UB tap- the slot in the shaft.
- Page 6 Turn the control switch to the LOWER (RAISE) position. Check that the motor also works properly in that direction, the position indicator decreases (increases) one step and the counter advances one step more. Reset the draghands. 6 User's manual UBB | 1ZSE 5492-156 en, Rev. 4...
- Page 7 Restoring the gas cushion Before starting any work inside the motor-drive In case the tap changer has an oil filter unit from ABB that mechanism the auxiliary power must be switched off. is installed according to our instructions, no outage of the transformer is necessary.
- Page 8 Selector switch fixed contacts 18. Position indicator window Selector switch moving contacts 19. Current collector terminal Selector switch shaft 20. Transition resistor 10. Bottom drain screw 21. Shielding rings 11. Bottom 8 User's manual UBB | 1ZSE 5492-156 en, Rev. 4...
- Page 9 Layout of on-load tap-changer system. Bevel gear Horizontal shaft with protection cover Vertical shaft with protection cover Rating plate On-load tap-changer Motor-drive mechanism 1ZSE 5492-156 en, Rev. 4 | User's manual UBB 9...
- Page 10 12. Shaft for hand crank RAISE/LOWER switch 13. Protective motor switch Outgoing shaft 14. Door-operated switch for lamp Lamp (40 W socket E27) 15. Hand crank Lifting eye 16. Descriptions and circuit diagram Counter 10 User's manual UBB | 1ZSE 5492-156 en, Rev. 4...
- Page 11 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 1ZSE 5492-156 en, Rev. 4 | User's manual UBB 11...
- Page 12 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...