Eaton COOPER POWER SERIES - Default Chapter; Table of Contents

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QD5 QUIK-DRIVE TAP-CHANGER INSTALLATION AND MAINTENANCE INSTRUCTIONS MN225012EN March 2016
Contents
SAFETY INFORMATION
Safety information .............................................................................iv
PRODUCT INFORMATION
Introduction ...................................................................................1
Standards .....................................................................................1
General .......................................................................................1
Motor ........................................................................................1
Motor resistance ...............................................................................1
Motor capacitor ................................................................................2
Holding switch .................................................................................2
Contacts ......................................................................................3
Main stationary contacts .........................................................................3
Main movable contacts ..........................................................................3
Reversing stationary contacts .....................................................................3
Main reversing movable contacts ..................................................................4
Micro switches .................................................................................4
QD5 tap-changer operating sequence ...............................................................4
MAINTENANCE, SERVICE AND TROUBLESHOOTING .................................................5
QD5 TAP-CHANGER SCHEMATIC ...................................................................10
QD5 TAP-CHANGER TORQUE REGUIREMENTS.......................................................13
QD5 TAP-CHANGER REVERSING MOVABLE CONTACT ASSEMBLY KIT 5740785B72ER .................19
QD5 TAP-CHANGER REVERSING NEUTRAL STATIONARY CONTACT ASSEMBLY KIT 5791646A26 ......23
QD5 TAP-CHANGER MAIN STATIONARY CONTACT ASSEMBLY KIT 5791646A24 .......................30
QD5 TAP-CHANGER VL REVERSING STATIONARY CONTACT ASSEMBLY KIT 5791646A25 ..............33
QD5 TAP-CHANGE VR REVERSING STATIONARY CONTACT ASSEMBLY KIT 5791646A27 ...............36
QD5 TAP-CHANGER MOTOR REPLACEMENT PROCEDURE KIT 57A63675100A .........................39
QD5 TAP-CHANGER MAIN MOVABLE CONTACT REPLACEMENT KIT 5740785B33 ......................46