Xformers week 2

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Author:
harlanjr
ID:
261716
Filename:
Xformers week 2
Updated:
2014-02-12 20:49:05
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Xformers week
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Xformers week 2
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  1. the most versatile transformer
    can be connected phase to phase or phase to ground
  2. 277/480,120/208
    Wye secondary voltages
  3. 120/240,240/480
    Delta secondary
  4. 120 volts
    two secondary coils in parallel, on a 120/240 transformer
  5. phase to phase primary connection
    Delta connection
  6. phase to ground primary connection
    Wye connections
  7. transformer with one primary coil voltage
    can only be connected phase to phase, delta, primary connection
  8. vector
    has magnitude and direction
  9. Alley Cat, Bad Dog
    the term used when paralleling the secondary coils of a transformer to obtain the maximum KVA rating
  10. 12470/7200 transformer nameplate
    has only one primary bushing and can only be connected phase to ground
  11. line voltage refers to
    phase to ground voltage
  12. system voltage refers to
    phase to phase voltage
  13. 120000 volts, only primary coil rating
    can only be connected phase to phase, delta connection
  14. X2 secondary bushing
    always used as the secondary bushing
  15. additive polarity
    the X1 bushing is on the same side as the H2 bushing when facing the secondary side of a transformer
  16. subtractive polarity
    the X1 bushing is on the same side as the H1 bushing when facing the secondary side of a transformer
  17. primary bushing
    the high voltage insulator of a transformer
  18. secondary bushing
    the low voltage insulator of a transformer
  19. A,B,C,D
    letters used to identify the secondary coil leads of a transformer
  20. Delta primary connections
    phase to phase connections on the primary
  21. Wye primary connections
    phase to ground connections on the primary

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