Eaton DST-2-VR+ Series Instruction Book

Contents

9Instruction Book IB182942EN July 2018 www.eaton.comDST-2-VR+VR-Series+ Replacement Circuit Breaker3.2 HANDLING WARNINGDO NOT USE ANY LIFTING DEVICE AS A PLATFORM FOR PERFORMINGMAINTENANCE, REPAIR OR ADJUSTMENT OF THE CIRCUIT BREAKER ORFOR OPENING, CLOSING THE CONTACTS OR CHARGING THE SPRINGS.THE CIRCUIT BREAKER MAY SLIP OR FALL CAUSING SEVERE PERSONALINJURY. ALWAYS PERFORM MAINTENANCE, REPAIR AND ADJUSTMENTSON A WORKBENCH CAPABLE OF SUPPORTING THE CIRCUIT BREAKERTYPE.VR-Series+ circuit breaker shipping containers are designed to behandled either by use of an overhead lifting device or by a fork lifttruck. If containers must be skidded for any distance, it is preferableto use roller conveyors or individual pipe rollers.Once a circuit breaker has been inspected for shipping damage, itis best to return it to its original shipping crate until it is ready to beinstalled in the metal-clad switchgear.When the circuit breaker is ready for installation, a lifting harness inconjunction with an overhead lift or portable floor lift can be used tomove the circuit breaker. If the circuit breaker is to be lifted, positionthe lifting device over the circuit breaker and insert the lifting harnesshooks into the circuit breaker side lifting points and secure (liftingstraps should have at least a 1000lbs lift capacity). Be sure the hooksare firmly attached before lifting the circuit breaker. Stand a safedistance away from the circuit breaker while lifting and moving.3.3 STORAGEIf the circuit breaker is to be placed in storage, maximum protectioncan be obtained by keeping it in the original shipping crate. Confirmthat the circuit breaker is free from shipping damage and is insatisfactory operating condition before placing it in to storage.The circuit breaker is shipped with its contacts open and closingsprings discharged. The indicators on the front cover should confirmthis. Insert the end of the maintenance tool into the manual chargesocket opening and charge the closing springs by moving thehandle up and down the full range of motion. When charging iscomplete the ratchet will no longer advance and the spring charged/ discharged indicator displays ‘Charged’. (Figure Set 3.3). Removethe maintenance tool. Push the “manual close” operator. The circuitbreaker will close as shown by the circuit breaker contacts ‘Closed’indicator. Push the “manual trip” operator. The circuit breaker willtrip as shown by the circuit breaker contacts ‘Open’ indicator. Aftercompleting this initial check, leave the closing springs ‘Discharged’and circuit breaker contacts ‘Open’.Outdoor storage is NOT recommended. If unavoidable, the outdoorlocation must be well drained and a temporary shelter from sun,rain, snow, corrosive fumes, dust, dirt, falling objects, excessivemoisture, etc. must be provided. Containers should be arrangedto permit free circulation of air on all sides and temporary heatersshould be used to minimize condensation. Moisture can causerusting of metal parts and deterioration of high voltage insulation.A heat level of approximately 400 watts for each 100 cubic feet ofvolume is recommended with the heaters distributed uniformlythroughout the structure near the floor.Indoor storage should be in a building with sufficient heat andcirculation to prevent condensation. If the building is not heated, thesame general rule for heat as for outdoor storage should be applied.3.4 APPROXIMATE WEIGHT BY TYPETablt 3. Approximatt Wtight by TyptType Amperes LBsDST-2-VR+ 500 1200 650*2000 750*DST-2-VR+ 750 1200 630*2000 750*otte:N * = An additional 75# is added with the optional internal Rotary Rackingsystem.Figurt 3.2. Lifting DST-2-VR+