Power-Cast II™ / Uni-Cast II

Power-Cast II™ / Uni-Cast II™
Cast-Coil Transformers
Power-Cast II™ / Uni-Cast II™
Transformadores de bobina moldeada
Power-Cast IIMC / Uni-Cast IIMC
Transformateurs à enroulements moulées
Class / Clase / Classe 7310
Instruction Bulletin
Boletín de instrucciones
Directives d'utilisation
Retain for Future Use. / Conservar para
uso futuro. / À conserver pour usage
ultérieur.

Power-Cast II™ / Uni-Cast II™
Cast-Coil Transformers
Class 7310
Instruction Bulletin
Retain for future use.

ENGLISH
NOTICE Read these instructions carefully and look at the equipment to become
familiar with the device before trying to install, operate, or maintain it. The
following special messages may appear throughout this bulletin or on the
equipment to warn of potential hazards or to call attention to information that
clarifies or simplifies a procedure.
The addition of either symbol to a “Danger” or “Warning” safety label
indicates that an electrical hazard exists which will result in personal injury if
the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
NOTE: Provides additional information to clarify or simplify a procedure.
PLEASE NOTE Electrical equipment should be serviced only by qualified electrical
maintenance personnel. No responsibility is assumed by Schneider Electric
for any consequences arising out of the use of this material.
DANGER
DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
WARNING indicates a potentially hazardous situation which, if not
avoided, can result in death or serious injury.
CAUTION
CAUTION indicates a potentially hazardous situation which, if not
avoided, can result in minor or moderate injury.
CAUTION
CAUTION, used without the safety alert symbol, indicates a potentially
hazardous situation which, if not avoided, can result in property damage.

43500-054-01R3 Power-Cast II™ / Uni-Cast II™ Cast-Coil Transformers
09/2005 Table of Contents
© 1992–2005 Schneider Electric All Rights Reserved 3
ENGLISH
TABLE OF CONTENTS
Section 1—Introduction ............................................................................5
Warranty .....................................................................................................5
Section 2— Safety Precautions................................................................6
Section 3—Receiving, Handling, and Storage ........................................7
Initial Inspection .......................................................................................... 7
Handling ......................................................................................................8
Unloading and Lifting .............................................................................8
External Lifting Procedures ...................................................................8
Optional Lifting Procedures............................................................. 9
Using a Forklift................................................................................. 9
Towing and Moving .............................................................................10
Storing ....................................................................................................... 10
Section 4—installation ............................................................................ 10
Transformer Location .......................................................................... 10
Restricting Access to the Transformer ................................................ 10
Cable Connections .............................................................................. 11
Lightning Arresters .............................................................................. 11
Grounding ............................................................................................ 12
Section 5—Start-Up Testing ................................................................... 13
Insulation Resistance Testing ............................................................. 13
Turns Ratio Test ..................................................................................13
Core Megger® Test ............................................................................. 13
Section 6—Operation .............................................................................. 15
Energizing the Transformer .................................................................15
Changing Tap Positions to Adjust Voltage .......................................... 15
Sound Level ........................................................................................16
Reduction of Structure Borne Noise ....................................................16
Section 7—Maintenance.......................................................................... 17
After a Major Fault ...............................................................................18
Cleaning ..............................................................................................18
Section 8—Optional Equipment............................................................. 19
Temperature Monitoring Systems .......................................................19
Fans (Forced Air) ................................................................................19
Neutral Grounding Resistors ...............................................................19
Other Optional Equipment ...................................................................19
Replacement Parts ..............................................................................20
Section 9—Troubleshooting................................................................... 20
Maintenance Log ......................................................................................21