Answer Posted / sundram saini
DG Netrual is earth for for Alternator protection because
practical load current difference always on always on all
phases so unwanted current goes to earth and safe the
alternator winding
Is This Answer Correct ? | 42 Yes | 1 No |
Post New Answer View All Answers
what is level 2 automation?
What do you mean by the zone of protection?
Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?
What is the working mechanism of OLTC in Power Transformers????
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
what is the id1 & id2 setting in differential protection relay of CSPC?
in my industry we are using 3 step up transformers for induction heaters..i.e 415/580v and other are 11/440v.in power consumption does a step trnsformer makes any difference compared to step up?? plz explain
Why does the adjacent zone of protection overlap?
List out the the types of Mounting Light fixture?
What is the principal of motor?
what is the safty of poly phase tranformer?
A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .
which metal is use in shunt
What do you understand by external characteristics of a d.c. Generator?
mccb service sittings be done?