Answer / ravi

The name signifies the meaning that the Power is derated by
a factor. Real power is readuced by that factor, as the
reactive component which is in perpendicular to real power
is acting.

It can be improved by reducing the reactive component viz.
adding capacitors in the circuit.

Capacitive load leads the real power by 90degree and
inductive load lags the real power by 90degrees. Generally
electrical equipments are predominently inductive and hence
to compensate capacitors are added in the circuit, their by
improving the power factor.

Answer / raghunandan

Power factor is the cosine of the angle by voltage and load
current differ.
For example if there is a load of 1KW and the power factor
is 0.8 then the actual power utilized is 800 watts.
since all household equipments like
fans,grinder,refrigerator,washing machine etc. have motors
which are inductive loads this results in low power factor,
to improve power factor capacitors are used which restore
the phase diff.

How to calculate the Meter constant for the given Meter (by using any formula)

4 Answers   HCL, Viva,

---

We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

0 Answers  

---

how to calculate size of cable from motor current given and how to calculate full load current of a induction motor.

3 Answers   Aarti Steels,

---

hi can you give any body fault level calculation, generator fault level calculation,transformer fault level calculation for system fault level with equation? i have 3.3kv generation voltage three gas gen sets, one is 1.9MW,2nd is 2.5MW,& 3rd is 3.8MW & i have 11 kv generation voltage one gas gen sets is 3.8MW, we are step up to 22kv by transformer

3 Answers   Hindalco, Piramal Healthcare,

---

What are the different types of cable jointing methods for HT and LT power cable?

1 Answers  

---

---

what is the difference between contactors & relay.

2 Answers  

---

which circuit breaker enclosure is best for maintenance guy? 16 bolt & 20 bolt squre or 16,20 bolt hinge

2 Answers  

---

What does VVVF stands for in VVVF drive ? How does it differ from VVF drive?

8 Answers   HAL,

---

my diploma certificate in my higher education college

0 Answers   Aastha Spintex,

---

size of condotory fron voltage level

0 Answers  

---

Define pole pitch?

0 Answers  

---

in the Distribution system .which one is Most Economically used by Power Engineer ? a)3 Phase3 wire System or b) 3Phase -4wire System

6 Answers   APTransco,

---