what is the difference between 3 phase 3wire &3phase 4 wire meter?what is the advantage of 3p3w over 3p4w?
Answer / prakash
A 3-phase 3-wire system does not contain a neutral. This
occurs when you have 3-phase loads such as motors that do
not require a neutral. A 3-phase 4-wire system has a
neutral. A neutral is required to obtain either 120 or 277
volts in a 3-phase system. Both of these scenarios can
occur on wye and delta systems.
Is This Answer Correct ? | 10 Yes | 18 No |
could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....sirisha.shaik@gmail.com
what is the purpose of vector group in a transformer ? if 2 tranaformers r connected in parallel the vector group is same or not? for parallel operation 2 transformers of different manufacturers maintain same vector group or not?
what is power factor when in view of a lineman
Why design 150Hz in Exciter
What is ZCT? it operating principle and how is work with RCCB (residual current circuit breaker)?
What will be the current rating of Main switch for 80 kVAR panel
which type of capacitors using in single phase motors
how much test voltage should applied for tan delta test.
how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.
How to use earthing on shipments.
In a synchronous motor armature current flows due to revolving flux which in turn rotates the load,but in no load condition armature current is zero hence thr is no revolving flux then how motor rotates?
Differentiate between low pass, high pass and band pass filter?