This is also why the majority of 480 to 120/208 transformers are delta primary. A 6 lead motor that is connected wye for high voltage and delta for low is an exception to the above. These motors are dual-voltage, but the two voltages are not half or double like a 9 or 12 lead one. The high voltage is 1.73 X the low.
Report Abuse. It's either called a sonogram or an ultrasound scan. They rub gel on your belly and rub a device on it. You will see the baby on a screen next to the hospital bed. ...
Typically, first trimester screening is done between weeks 11 and 14 of pregnancy. Using your age and the results of the blood test and the ultrasound, your health care provider can gauge your risk of carrying a baby with Down syndrome or trisomy 18. If results show that your risk level is moderate or high, you might choose to follow first trimester screening with another test that's more definitive.