We have one Energy meter for Measuring the
voltage,current,power,energy(KWH,KVARH,KVAH) & power
factor.The problem is that the meter does not show whether
the PF is lagging or leading.So i want to know that is
there any way or calculation to find out that whether the
PF sign (lagging or leading) depending upon the above
mentioned parameters?
Answers were Sorted based on User's Feedback
Answer / john
Is this a revenue meter from the utility company or a power
quality meter? In the case of a power quality meter, there
should be something letting you know if your PF is in a lead
or lagging. I have an Amprobe DMII Pro and it showes an i
after the PF to indicate lagging, .98i, and a c to indicate
leading, .98c. I have also seen meters with lagging PF -0.98
and leading +0.98. Another simple thing you can do is look
at your VAR, if it is in the negative, your in a lead.
As far as a revenue meter from the utility company is
concerned, call the utility company and ask them.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / ram
please check the meter must be indicating sign as +
(leading) or - (Lagging) power factor.
Is This Answer Correct ? | 1 Yes | 2 No |
Answer / ds01151
By using the formula KW/KVA you can find the pf
Is This Answer Correct ? | 2 Yes | 4 No |
Answer / ashwini
by using formula p=vicos(pf) v can calculate power factor......
Is This Answer Correct ? | 1 Yes | 9 No |
What are the essential parts of a transformer?
which turbine has high thermal efficiency a)open gas turbine b)close gas turbine
flurescent bulb rating is to 230v,50HZ.now flurescent connected 230v,25HZ.whether nreduced frequency will affect the glowing properties of flurescent.
what do u mean by bus bar?
If NO contact of relay gets supply from other sources or other part of circuit and at a time relay coil activates,then current will flow in which direction & will it cause to damage relay??
WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?
what is the principle to generate energy from water or coal, plz define the step by step how & when electricity energy start from resource area to ours home meter & separate & how meter read the voltage or current?
capacitor is load free component but why ampare meter shows current when capacitor bank breaker close?
how many minutes or seconds taken by the transmission of electrical power from generating end to distributing end?
why protection and metering CT's are always connected in star why not in delta?
if an induction motor is operated at unity power factor what will happen? will motor run or not? kindly describe a logical answer?
What is the minimum permissive IR value for LT & HT motor for safe starting?