if 1hp jet motar drop voltage when start from 220v to 120v give the reason and solution.
Answer Posted / k.prakashchandra
It may be due to voltage drop in the line.Momentary drop
while starting only, can be ignored.Connect a load of about
500W and check for voltage drop.If the drop persists then
examine for loose connection/joint which could be any where
from dist transformer to the point of measurement .If you
don't detect any fault still, test the motor.Voltage between
neutral and the earth indicates a loose joint in the neutral.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What does the kvar means?
which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?
Draw torque - speed curve and load curve of induction motor? mark operating point ?
Which standard we are following earthing resistance test
electrical knowelge
what are the tests comes under the type test, what tests comes under routine tests.
What are the protections for safe running of electric generator?
how does ELR works? explain
why we get 2 differnet values for power factor in 2 watt meter method in 3 phase
STATE USE OF ARC RUNNERS & SPLITTERS ?
what are problems caused by the pdu in rack server
What are the different methodes for calculating the short circuit Current?
WITCH CARDS IN USE IN FIRE CONTROL PANEL.
how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable
what is gridrotor resistance starter