Unit 29 Industrial Maintenance
dielectric oil - answer provides electric insulation between winding and case
three phase bank - answer connect three single phase banks together
When Closing a delta - answer voltages should be checked for proper polarity
Only ______ can be used for calculating transformer values - answerphase values
Open Delta - answerCan be made with two transformers without the third
Three phase transformer connections are often used to supply - answerSingle Phase
Loads
High leg - answerthe leg with voltage that is higher than average
If the transformer connection is powered by a three phase three wire system than -
answerit must be in delta
T connection - answerFrom 2 phase to 3 phase
Scott Connection - answerFrom 3 phase to 2 phase
Zig Zag connection - answertypically used for grounding purposes
Harmonics - answerFrequencies in multiples of 60 hertz
dielectric oil - answer provides electric insulation between winding and case
three phase bank - answer connect three single phase banks together
When Closing a delta - answer voltages should be checked for proper polarity
Only ______ can be used for calculating transformer values - answerphase values
Open Delta - answerCan be made with two transformers without the third
Three phase transformer connections are often used to supply - answerSingle Phase
Loads
High leg - answerthe leg with voltage that is higher than average
If the transformer connection is powered by a three phase three wire system than -
answerit must be in delta
T connection - answerFrom 2 phase to 3 phase
Scott Connection - answerFrom 3 phase to 2 phase
Zig Zag connection - answertypically used for grounding purposes
Harmonics - answerFrequencies in multiples of 60 hertz
