Answer / madhusudhan

Maintaining unity power factor reduces losses in
distribution and in switchgear system not in actual power
consumption. If we maintain the power factor above 1 there
will be more losses in distribution transformers and
capacitors(which are used to increase PF). The capacitive
power reduces the inductance power in transformer thereby
increasing the losses.

Answer / glen

if power factor is one means it is a resistive load no
loses due to induction it is like a dc ckt

Answer / anusha reddy.m

If the power factor is unity that means the load is
resistive load and as the load with lpf wil draw high
current and load with high pf wil draw less current ,so we
have less losses and the pf can never bemore than 1 because
the cosine function varies a max. of 1.
Since load is resistive the output waveform is
purely a sinusoidal waveform without any diturbances

Answer / arun

Voltage at transformer terminal increases.You can utilise
full KVA of transformer.Electricity company asks to
maintain pf near to unity to reduce the losses in
transmission as the current reduces reducing the I2R loses.
This is why we get incentive on energy charges from supply
company.

Answer / provas

if power factor is above 1 then the load takes lees current
than rated.

In Fluorescent tube there is a writing like 6500k . what this 6500k represents?

4 Answers  

Define piezo-electric effect?

0 Answers  

WHY IN WESTERN COUNTRIES THE ELECTRIC SHOCK IS VERY SLOW AS COMPARE TO INDIA.&IF ANY ONE HAVE CORRECT KNOWLEDGE THEN SEND OTHERWISE NOT

1 Answers  

What are the different sign conventions used in electric circuits?

0 Answers  

what is transient earth voltage

2 Answers  

hi Is there any possibilities to find out the rotation of a shaft or something else by using electromagnectic waves or by IR rays.If s then can v change the dir., of rotation of the same by remotely?& how? plz dn't any1 say "NO r CAN'T"

0 Answers  

Hello friends., my question is related to testing of current transformer... A Ct having knee point voltage of 750 volts., and I have two step up transformer's of rating 230 v to 440 volts., can I obtain the value of 750 volts by using the two transformer's.... If yes then how could I connect the transformer's to obtain knee point voltage?? thank you in advance

1 Answers   ABB,

is it ok to switch lights from a mcb instead of switches

5 Answers  

What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

0 Answers  

can we use generator(a.c) as a motor.if so how if not why.

2 Answers  

What are differences between Conventional & Addressable type smoke detectors?

1 Answers  

can we replace Dyn11 transformer to Yy0 transformer and what is the difference between the two type

1 Answers   Arab Contractors,