Eaton DS-206S series Instructions Manual

Contents

15Instruction Booklet IB 33-790-1JEffective November 2010Instructions for Low Voltage PowerCircuit Breakers Types DS and DSLEaToN CorPoraTIoN www.eaton.comNote: On breakers equipped for power operation,when they are in the compartment and in either theTEST or CONNECT position, the spring-charge motornormally runs automatically and charges the closingsprings as soon as the breaker opens. The closingsprings normally remain discharged while thebreaker stands in the closed position. Also see Sec-tion 5.1.2.1.Now to become better acquainted with the breaker,charge the closing springs, close and open the breakerseveral times. Also, place the levering crank handle onthe levering device work shaft and rotate the leveringarms to their various positions by turning the leveringcrank handle. Leave the levering arms horizontal, withrollers toward rear of breaker, i.e. in the remove posi-tion.The breaker is now ready to be put into its various operat-ing positions in the compartment.4.5 PLACE THE BREAKER IN THE TEST POSITIONPush the breaker into the REMOVE position.YOU WILL NOTE THAT, WITH THE COMPARTMENTDOOR OPEN, THE FRONT PANEL ASSEMBLY OFTHE BREAKER FORMS A STEEL PROTECTIVESHIELD.Place crank on the levering device worm shaft. Turncrank clockwise until drawout unit position indicatorshows “TEST.” Remove the levering device crank. Theshutter will close over the hex shaft. All manual opera-tions can now be performed. On power operated break-ers the spring is charged automatically as the breakerarrives in the TEST position. The breaker can also beopened with the shunt trip device, and it can be electri-cally closed with the spring release device.4.6 PLACE THE BREAKER IN THE CONNECTPOSITIONPress the trip plate and lower the shutter. Place the crankhandle on the levering device worm shaft and turn thecrank clockwise until the CONNECT position stop isreached, as indicated by sudden increase in load on thecrank, as previously described in paragraph 4.1.Note however, that before the stop is reached, anincrease in load on the crank will be felt after the breakerhas moved about an inch. This is caused by the makingup on the main disconnecting contacts. The load on thecrank will decrease after reaching a peak. The nextincrease in load is when the stop is reached.Note: Do not try to crank after the stop is reached.Further tightening of the crank does not help keepthe breaker in position. When the crank handle isremoved, the shutter and the trip plate should snapinto normal position.4.7 REMOVE THE BREAKER FOR FINALINSPECTIONWithdraw the breaker from the CONNECT position in thecompartment to the end of the extended rails followingthe reverse procedure described above. Inspect it thor-oughly to see that no foreign objects have lodged withinit. If any defects were found during these preliminaryoperations, complete their corrections at once.4.8 FINAL INSPECTIONMAKE SURE THE THREE (3) ARC CHUTES AREPROPERLY INSTALLED. MAKE SURE ALL FOUR (4)INSULATING BARRIERS ARE PROPERLY INSTALLED.1. With the breaker withdrawn, rotate levering device toconnected position before attempting to charge thespring.2. Close and trip the breaker several times as previ-ously described.3. Return the levering device to the remove position;i.e., with the roller arms pointing toward the rear asshown in Figure 6.4. This completes the “dry run.”4.9 AMPTECTOR TRIP SETTINGSWhen the breaker is shipped, the calibrating dials of theAmptector trip unit are at the nominal settings. For spe-cific overload tripping characteristics to coordinate withthe load or the system, refer to Section 8 and Curvesfound later in this instruction book.4.10 PLACE THE BREAKER IN SERVICELever the breaker into the connected position as previ-ously described, and latch the compartment door.