Answer Posted / ali
The cosec angle bt voltage and curent is called power factor
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?
How is the gain affected by the introduction of feedback in a control system.
how the B-H loop obtain under the static condition
EXPLAIN THE TRANSFORMER MAINTENANCE?
Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir
What does the a,b,c of 95a,95b,95c relays denotes?
what are the parameters plays a major role in Potential transformer Burden calculation??
how do we calculate length of starting time and repeated starting of a direct online starter?
When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?
in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
Do inductive loads have distorted current waveforms ?
Explain bypass capacitor?
Do closed loops systems require manual input?
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
