Answer / rahul das

power factor can be improved by various methods...some of
them are...
1. by the use of capacitors used in paralel
2. by the use of synchronous capacitors

Answer / hit_dav

By putting Automatic power factor correction panel which
has the capacitors in steps as per load requirement for
improving power factor & with relay for identifying whether
it is leading or lagging.For that first of all we need to
understand our load(KW) conditions then we can calculate
how much capacitors in KVAR we required.

Answer / md.atikur rahman

how we can improve power factor from 0.8 to 0.85 or 0.9

Answer / k

According to formula

PF=kW(Tan phi1 - Tan Phi2)

Answer / ahmed

How to improve power factor. Watch this video will clear your concept.https://youtu.be/SpZ0354kTMk

Answer / ramya

hit dav thanks for posting your answer please can you
explain with example ?

Answer / milinda4p

most of the loads are inductive so most of them are lagging

what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).

0 Answers  

Resistor switching is used in which type Circuit Breaker ? a) oil filled CB b) Air blast CB c) Gas filled CB

11 Answers   Engineers India Limited, wbsedcl,

I have connected 04nos. earthings to a transformer through 04nos. earthing pits seperately. 02nos. earthings are connected to T/F body, and 02nos. earthings are connected to T/F neutral.T/F capacity is 2000KVA, 11KV/415V. But after completing of 02 years successful operation ,we are facing following problems- 1. CT/PT occured blast one time 2. HT cable box occured blast two times 3. One body earthing strip and one neutral earthing strip of transformer are overlapping at some places. Whenever these two strips are pressed at overlapped points, they made spark. What is the reason of spark? Please explain the reason & rectification of above problems

5 Answers  

How can transformer oil be used in transformers with voltage rating above its breakdown voltage?

2 Answers  

WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.

0 Answers  

How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

0 Answers   ABB,

1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.

0 Answers  

what is on line transformer and off line transformer.

3 Answers   Cisco, HP, ICC,

Power Factor Controller

1 Answers  

Wat is da difference b/w neutral earthing and unearthed system?

2 Answers  

1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?

0 Answers  

where used impendence relay?

3 Answers