EGII W2Tuesday

What two points is coil voltage measured between in a WYE system?

pg.39

• Phase to Phase

• Phase to Neutral

• Coil voltage= System voltage

• Coil current= Phase current

The system voltage is 1.732 times higher then the coil voltage in what type of system?

pg.39

• Three phase

• Single phase

• Delta

• WYE

What value is the same in a WYE system?

pg.39

• Coil current and phase current

• Coil voltage and phase voltage

• Phase voltage and System voltage

• Coil current and System current

System voltage is the same as coil voltage.

pg.39

• Delta

• WYE

• 4 wire WYE

• 3 wire WYE

Phase current in a Delta system is higher then the coil current by _______?

pg.39

• 2

• Its the same

• 1.732

• 120 degrees

Delta system

Phase current divided by 1.732= ?

pg.39

• Coil current

• System current

• Phase voltage

• System voltage

WYE system

Coil voltage times 1.732= ?

pg.39

• Coil current

• Phase current

• Phase voltage

• System voltage

WYE system

What is system voltage if coil voltage is 7,620?

pg.39

• 7,620

• 12,470

• 13,200

• 14,400

Delta system

What is the coil voltage if the system voltage is 12,000?

pg.39

• 6,928

• 12,000

• 6,000

• 7200

WYE system

If the phase current is 86, what is the coil current?

pg.39

• 1.732 times higher

• 1.732 times lower

• 86

• 49