Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for ABB UC
Summary of Contents for ABB UC
- Page 1 1ZSE 5492-155 en, Rev. 1, 2000-01-15 On-load tap-changers, type UC User’s manual...
- Page 2 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.
-
Page 3: Manufacturer's Declaration
Manufacturer’s declaration ABB Power Technologies AB, Components The manufacturer SE-771 80 LUDVIKA Sweden Hereby declares that The products On-load tap-changers type with motor-drive mechanism type comply with the following requirements: By design, the machine, considered as component on a mineral oil filled power transformer, complies with the requirements of •... -
Page 4: Warning And Caution
Introduction The UC range of on-load tap-changers manufactured by ABB has been developed over many years to provide maximum reliability. The simple and rugged design gives a service life equal to the service life of the transformer. Minimum maintenance is required for trouble-free operation. The only parts requiring maintenance are contacts that might need replacement during the service life, the insulating oil and the motor-drive mechanism. -
Page 5: Operation
Operation – The position indicator shows the actual tap-position. – The draghands show the max. and min. tap-position between which the on-load tap-changer has been working since last resetting. – For BUE: The tap-change in progress indicator shows POSITION in service position, RAISE when operating in a raise operation and LOWER when operating in a lower operation. -
Page 6: Maintenance Schedule
To maintain the high reliability of the on-load tap-changer it is important that the inspections and the overhauls be carried out at the interval stated on the rating plate. A specialist is a service engineer from ABB or an authorized person trained by ABB for maintenance work on UC on-load tap-changers. - Page 7 Call a specialist for restoring the gas cushion. Prepare for the outage of the transformer during the restoring. NOTE: In case the on-load tap-changer has an oil filter unit from ABB that is installed according to our instructions, no outage of the transformer is necessary.
- Page 8 7 Checking of the oil filter unit (option) If the on-load tap-changer is equipped with an oil filter unit from ABB: Read the pressure gauge. Note the reading so the change from year to year can be seen.
- Page 9 Layout of motor-drive mechanism, type BUE 1. Locking device prepared for padlock 12. Position indicator with draghands for max. and min. position 2. Emergency stop 13. Shaft for handcrank 3. (Option) Switch for extra heater 14. Heater 50 W + optional 100 W (behind the panel) 4.
- Page 10 Layout of motor-drive mechanism, type BUL 1. Position indicator with draghands for max. and 12. (Option) Earth fault protector (when outlet is installed) min. position 13. Emergency stop 2. Tap-change in progress indicator 14. RAISE/LOWER switch (Red = in progress, White = in position) 15.
- Page 12 ABB Power Technologies AB Components Visiting address: Lyviksvägen 10 Postal address: SE-771 80 Ludvika, SWEDEN Tel.+46 240 78 20 00 Fax +46 240 121 57 E-mail: sales@se.abb.com www.abb.com/electricalcomponents...
Need help?
Do you have a question about the UC and is the answer not in the manual?
Questions and answers