Simple and straightforward explaination...but with a p.f. corrected cap in circuit your household wiring draws lower utility current...so it's that much lesser stressed... Now the properly rated hardware...( wire gauge..fuse ratings...thermal trips...ckt.brakers...switches & sockets... etc ..) can be optimally downsized..so this lowers the costs....& improves the overall " safety factor" of your household equipment..so you become a contributor to improving the " electricity footprint " in s small way.
Note that in the USA, while most home circuits are 110-120VAC, the input into the house is 220-240VAC and then split into two 110-120VAC legs. So if the house's wiring relies on only one of the two 110-120 VAC legs, you get charged as if you used both, doubling your bill. So it is generally best to make sure that the appliances that use the most current over each day are evenly split between the two different 110-120VAC legs.
how does that work? Meter gets measured off watts. If you use only 1 leg, you are using twice as many watts on one leg but if you split them on 2 legs you are still using the same amount of watts but they are simply split in 2
In your example, 2 variables have changed. Before capacity installed, PF=0.6 & current = 36A. After capacity installed, PF=0.8 & current = 27A. Why is there a change assuming all other factors remained the same. Should current also stays at 36A?
Thats a good question. Remember that any load has fixed maximum power in kw that it will consume and also voltage at which it operates. Only this that varies is the amount of current and power factor
All these Dumb unclear video is just for their own beneficial purpose. Don't follow these. Books tell you the truth. So we educate it. I don't believe in this video what is talking about.
In generator terms I'm not sure exactly what bad power factor is doing. Resistive loads provide constant slowing in the generator, but reactive loads are slowing the generator for part of the cycle and speeding it up for the other part - like putting a spring on an arm on the generator? Also they waste more energy in wires because you have higher peak currents than you need with a purely resistive load. It's like trying to start a car engine which is a combination of mechanical resistive and reactive loads. It has a flywheel which is inertia to accelerate (inductive) and compression in the cylinders (capacitive) and finally air resistance in the valves and exhaust and oil resistance and friction in the cylinders and coolant flow (resistive). Or if you take a fixed gear spin bike with a big steel flywheel from a gym, the inertia to pedal up the generator in the flywheel is inductive reactance that will kick your feet if you lock your legs from high speed. The felt pads on the flywheel are a resistive load. A capacitive load would be attaching a spring to the flywheel that stretches and actually prevents the pedals turning after a certain amount of stretch, so only if you pedal forwards and backwards will it work.
With a proper circuit board like ras pi you could hook up a capacitor for the start load, batteries for saving power, and set a charge time in your computer for the cheapest time of night. If you have solar, you can charge in daytime too. Test your home power usage before buying equipment or trying to salvage old equipment.
Its informative video. My question is , doesnt it depend on where we installed capaciotrs. If we install capacitor on HT side only to improve power factor but LT side equipment working inefficiently, so by improving PF at end , ultimately being converted to high units
WHEN YOU ADD A CAPACITOR THE POWER FACTOR WILL IMPROVE AND THE CAPACITOR WILL ELIMINATE THE LOSSES OF ENERGY FROM THERE YOU WILL HAVE SOME SMALL SAVINGS. THANK YOU
Attention between KW, KVA, KVAR, KVD (distorsion wave). KVA=KW+KVAR+KVD. The metter measures only KWH, means active power, means power like in DC current, U*I=P (watt). The metter doesn't know about KVAR, KVA, KVD. For this exist special metters. The cos xx si for metter ideal, means 1. For this the metter is built to measure correctly the power for what we pay the bill. The rest is theory for us. A capacitor consumes nothing in ac/dc circuit, the resistance, capacitance is big. The voltage is danger for it.
your explanation is good, but you need to mention the extra cupper power loss I^2 R withen the cables which can be reduced if we improve the power factor.
Older non digital meters use magnetic field to read electric current, if you allegedly stuck a big magnet or put a magnet around the old meters it would slow them and cause your electric bill to go down I guess. Haven't tried it myself. But I've partially or fully bypassed meters before out of necessity on new construction. It's a general practice around here and nobody really says anything when we're building new houses.🤷
I don't know yet about the other, but some of the metering device used in houses calculate the power consumed by only reading the current without the voltage and power factor. They just use magnetic induction caused by the pasing current and show the kwh consumed
Those so-called "electric saver" devices are actually a capacitor used to "dampen" the inductive effect of electrical devices with coils such as old flourescent lights or old aircond compressor on the electrical wiring's total resistance (inductance contributes to resistance in AC circuits). If the inductive effect is either small or absent due to usage of energy-saving electrical devices or flourescent lamps being replaced with LED counterparts, then the capacitor itself will contribute to the total resistance of the wiring via capacitive effect. Total resistance R (total) = R + √(xL^2 - xC^2)
I connected two 2.2mfd capacitor in parallel very near to the main switch(that is near to the meter). Now Iam getting electricity bill continuously 25% less than before how?
Only large usage of KW/electricity that have inductive loads will benefit from capacitive power factor correction. It's better to focus on the efficiency of specific devices by factoring in lumens/watts or horsepowere/watts.
I'm your new subscriber frm the Philippines. You are ok! Your explanation is clear. The only thing unclear is the value of the capacitor, where to connect it & how to connect it. I consume 250 KW every month. Now, forgetting all other videos and or explanations, let's go straight to the point. Would a 5 - 10 uF/450v rated capacitor used in washing machines & air conditioners achieve the purpose? Which one along that range is the best? Also, I constructed below a table (if you will), where, as I said, being straight to the point, you can fill up, based on your computations, the capacitor ratings in accordance to monthly consumptions. KW USED CAP VALUE 400KW. ____uF This, based on the assumption that the capacitor is wired in the main panel thru a circuit breaker or a fuse. Thanks in advance for the answer.
Thanks for your time and lovely comment. What I get from your question is that you are interested in finding the value of capacitor to be connected across main supply for power factor improvement. I will soon upload the video from which you can easily compute the values in the table
I would say that modern smart power meters may detect the existing PF and calculate pwr consumed as per formula mentioned. In contrast, OLD spinning disc meters turn cogs which moves the revolution counters depends on the number of revolutions to register pwr consumed by customers. In this case, adding a capacitor reduces current and disc spin speed, hence lower meter readings for the appliance used. It was benefitial then, but doubtful nowadays...
If the voltage drop across the cable is large, does the change in power factor not cause the voltage drop in the conductors to decrease? The power loss on the conductor would decrease and the wasted power would be less. Maybe the calculation of economic efficiency should be more complex.
@@electricallectures The total power would decrease if the capacitor were placed next to the consumer => the total current decreases => the current per conductor decreases => the power lost per conductor decreases (real part) => the total bill decreases. Even if the inductive part is not billed.
I doubt the average home would have enough induction motors to affect the PF very much, I worked in mining for many years, I served my apprenticeship as a coal mine electrician in the 1960's and it was policy to install PF correction capacitors to reduce "wattless" current. The power utilities charged my employer extra for poor PF correction. Our coal mines contained vast numbers of electric motors from low HP to large 300HP motors, later mines much larger HP's, so without correction we'd have poor PF and the utilities would charge us extra. For many years fluorescent lights had built in PF correction capacitors.
@@TimpBizkit that’s a good point, I just started to think that because it caused some lights to flicker but those are already LED lights on dimmers which are possibly just causing their own noise
Most of the household appliances are now inverter based. They are efficient and intelligent and consumes less electricity. Also for airconditioning its always recommended to set your temperature setpoint to 26 or 25 not less than this.
Leading power factors can damage the power source devices such as generators, alternators, etc because generators, alternators cannot withstand the leading power factor. Leading Power causes to increase the receiving end voltage than the sending end voltage in a transmission line.
Yes here comes the point: IS every meter calculating also by cos(pf) ? - If Yes, it makes not much sense to avoid it at private home usage. But I try to as fE a server PC takes 50 Watt at 0.87 pf, and so I had an opportunity to test calculation and result. Adding the calculated 2uF Capacitor parallel to the load, the pf even got worse. So I stuck anyway, but your point makes it take easier anyway ... IF our meter is doing V * I * cos0 ... So far I see the higher the load of more PC and Monitor, the better the pf is getting ... another NOT energy saving solution. Ha
@@electricallectures Ok, here we got: * I have a private 5(15) meter, added about 3 households on this meter and THERE I don't have data * research yesterday about Thailand electric meter show that this 5(15) meter are NOT including a pf correcter, pdf's show far clear only Volt * Amp = P (Watt) * also as private connection so far I see now extra charge as of 'more' reactive power or fined as of to low pf * ... charge by KWh, yes ... but Watt/hour is still is "Volt * Ampere", and when the Ampere is higher as of leading or lagging reactive power, also Watt is higher than needed and so also the bill.
Kudos for the Video! Apologies for the intrusion, I would appreciate your thoughts. Have you heard the talk about - Chiveard Wealth Storage Framework (do a google search)? It is a smashing one off product for slashing your energy bills by generating your own without the headache. Ive heard some super things about it and my cooworker at last got excellent results with it.
Volt-amperes measures all power passed through a distribution network, including reactive and actual. This is equal to the product of root-mean-square volts and amperes. They are different from the utility energy meters at consumers end
@@electricallectures The instrument to measure power at the consumer (customer ) does NOT measure Apparent power (real and reactive ) - For example: The meter at my residence measures real power only.
But why we use capacitor to chakki motor in 3 phase. Im also a electrician i have practical experience whe we add 11 kvar capacitor in 15 hp motor it takes 10 ampare but without adding capacitor it takes 15 ampare.
Ampere will reduce bcz power factor is increased by adding capacitor. Overall power of motor remain the same. You add capacitor in order to reduce current which has lots of benefits but not electricity bill
27 amps?? From where this arrived ... Not explained in details,,, We have installed automatic capacitor Bank for our building which automatically switch on and switch off the capacitors to maintain the power factor 0.9 ,,, the overall electricity bill has drastically reduced...
a power factor of .6 will use more apparent power by your motor running less power, restoring 40% to the grid and you will not be paying for it. Caps are added by the power company to make a pf of one so they get full billing.
Then One my Question sir Every place Bill should e same while ampere is no.matter it is less or high ampere Secondly go for .999 pf not at 0.80 ...why go for only .80
Electricity is charged for kW not current. It may be less or more for same kW depending on power factor. Secondly most machines designed at 0.8 pf at rated load. You can only improve it with capacitor bank
.999pf. is ideal...but very difficult to achieve...the cost for trying to reach it will rise exponentially...and equipment will also be complex...not just more capacitors... ideally today 0.9-0.93 is more realistic
Tell me something, how can a radio station, or television station transmit 100k watts 24/7 and pay the power bill ? Just sayin, someone knows something !
They are consuming electricity from the grid depending on transmitted power requirement. It is to be noted that there are different types of tariffs and there are different criteria of calculating bills. Its not that simple. This video focuses mainly on residential and industrial tariffs
Can I use a capacitor to save for my electricity bill? If yes, which capacitor does save more electricity No, you cannot use capacitor to save for electricity bill ! Why ? For this we need to know about power in alternating current Circuit. ! The answer is going to be long ! There are 3 types of power in alternating current : Active power : The active power is the real power, and it is measured in killowatts.(PRODUCT OF VOLTAGE•CURRENT•COSΦ cos Φ being the angle between voltage amd current). Reactive power : The power which flows back and forth that means it moves in both the directions in the circuit or reacts upon itself, is called Reactive Power.reactive power does not do any real work and thus sometimes called as imaginary power. Measure in kVAR.(PRODUCT Of VOLTAGE•CURRENT•SINΦ.) APPERENT Power : the vector combination of above 2 power is called apperent power ! Measure in KVA.(product of just voltage and current) Now What does capacitor do ? It stores electrical energy in form of electric field which can supply current when there is change in voltage which keeps it constant ! For ac current it reacts in ac power in which current leads voltage by 90° (ideal capacitor) What does inductor do ? It stores electrical energy in form of magnetic field around it. It reacts in ac power i.e voltage lead current by 90° (ideal inductor) Since almost all ELECTRICAL device are inductive in nature ( microwave oven, induction motor fan, pump motor) this gadgets consume reactive power along with real power which increses current In wire (real power current + reactive power current) and also reduce power factor(pf) In real power the cos fi is also indicates nature of load.for example pf=1 means there is no reactive load.(only resistive)Below 1 to 0 is inductive load. And above 1 there is capacitive load. The more the pf is toward unity the better the power factor(less current) Since electricity board charges only for active power the capacitor cannot generate or consume real power(exception are there). Thus using capacitors is useless for domestic consumer as well as commercial consumer. But wait, Since industries use inductive load it also uses huge amount of reactive power.. Which causes huge amount of i^2r losses in wire resulting in more capacity grid and expenses for electricity board.thus electricity board not only measures active power but also reactive power.Reactive power can be compensated by introducing capacitor not one but many (usually bank which operates as per power factor being bad). This capacitor bank helps in increasing pf. The electricity board penalize the industry for there pf being bad thus capacitor bank helps them maintain good Pf which not only save them from penalty but also get token of appreciation(usually a very little discount )from electricity board for maintaining good power factor. Bottom line : capacitor does not save electricity neither electricity bill. Sorry for long answer. If you like the answer don't forget to upvote !
Simple and straightforward explaination...but with a p.f. corrected cap in circuit your household wiring draws lower utility current...so it's that much lesser stressed...
Now the properly rated hardware...( wire gauge..fuse ratings...thermal trips...ckt.brakers...switches & sockets... etc ..) can be optimally downsized..so this lowers the costs....& improves the overall " safety factor" of your household equipment..so you become a contributor to improving the " electricity footprint " in s small way.
Too complicated here in Africa we just bypass the meater and don't pay
The energy loss in the wires are reduced with capacitor installed. That's how it will save energy. So capacitor definitely helps
Note that in the USA, while most home circuits are 110-120VAC, the input into the house is 220-240VAC and then split into two 110-120VAC legs. So if the house's wiring relies on only one of the two 110-120 VAC legs, you get charged as if you used both, doubling your bill. So it is generally best to make sure that the appliances that use the most current over each day are evenly split between the two different 110-120VAC legs.
Thanks for sharing useful information
look like we still underestimate the power company of criminal intent.
how does that work? Meter gets measured off watts. If you use only 1 leg, you are using twice as many watts on one leg but if you split them on 2 legs you are still using the same amount of watts but they are simply split in 2
Very good sir...adding capacitor will not save power
P=i²r
If current decreases the power also decreasing
R resistant is constant
a capacitor is can only improve pf not KW/H reduce
informative video tnX
thou with lower total Amp need smaller gage cable so it helping but not the way ppl think thou
Such an informative video. Wonderful explanation in a simple way
Thanks a lot to describe actual scientific logic.
Thanks stay tuned and dont forget to subscribe
@Electrical lectures Your channel has already been *_subscribed_* .
Great video sir. Thank you for your clear explanation.
Stay tuned and dont forget to subscribe
In your example, 2 variables have changed. Before capacity installed, PF=0.6 & current = 36A. After capacity installed, PF=0.8 & current = 27A. Why is there a change assuming all other factors remained the same. Should current also stays at 36A?
Thats a good question. Remember that any load has fixed maximum power in kw that it will consume and also voltage at which it operates. Only this that varies is the amount of current and power factor
@@electricallectures Our billing is based on kWh only. If kW remains the same then how do we reduce the bill and witness the savings in our case?
All these Dumb unclear video is just for their own beneficial purpose.
Don't follow these.
Books tell you the truth.
So we educate it.
I don't believe in this video what is talking about.
@@ashwath722 good one
@@ashwath722 your question is wrong. Electrical lectures clarified 100%
In generator terms I'm not sure exactly what bad power factor is doing. Resistive loads provide constant slowing in the generator, but reactive loads are slowing the generator for part of the cycle and speeding it up for the other part - like putting a spring on an arm on the generator? Also they waste more energy in wires because you have higher peak currents than you need with a purely resistive load.
It's like trying to start a car engine which is a combination of mechanical resistive and reactive loads. It has a flywheel which is inertia to accelerate (inductive) and compression in the cylinders (capacitive) and finally air resistance in the valves and exhaust and oil resistance and friction in the cylinders and coolant flow (resistive).
Or if you take a fixed gear spin bike with a big steel flywheel from a gym, the inertia to pedal up the generator in the flywheel is inductive reactance that will kick your feet if you lock your legs from high speed. The felt pads on the flywheel are a resistive load. A capacitive load would be attaching a spring to the flywheel that stretches and actually prevents the pedals turning after a certain amount of stretch, so only if you pedal forwards and backwards will it work.
Informative
With a proper circuit board like ras pi you could hook up a capacitor for the start load, batteries for saving power, and set a charge time in your computer for the cheapest time of night. If you have solar, you can charge in daytime too. Test your home power usage before buying equipment or trying to salvage old equipment.
Well explained I hope all layman realize how they get fooled by such devices.
Thanks . This is actually my purpose is. Stay tuned and dont forget to subscribe
Its informative video. My question is , doesnt it depend on where we installed capaciotrs. If we install capacitor on HT side only to improve power factor but LT side equipment working inefficiently, so by improving PF at end , ultimately being converted to high units
WHEN YOU ADD A CAPACITOR THE POWER FACTOR WILL IMPROVE AND THE CAPACITOR WILL ELIMINATE THE LOSSES OF ENERGY FROM THERE YOU WILL HAVE SOME SMALL SAVINGS. THANK YOU
Attention between KW, KVA, KVAR, KVD (distorsion wave). KVA=KW+KVAR+KVD. The metter measures only KWH, means active power, means power like in DC current, U*I=P (watt). The metter doesn't know about KVAR, KVA, KVD. For this exist special metters. The cos xx si for metter ideal, means 1. For this the metter is built to measure correctly the power for what we pay the bill. The rest is theory for us. A capacitor consumes nothing in ac/dc circuit, the resistance, capacitance is big. The voltage is danger for it.
Karim from Algeria. Thanks. For this explain.
Stay tuned and dont forget to subscribe plz
Very good and informative.Keep it up.
Stay tuned and dont forget to subscribe plz
Hi, How about capasitor in dc ceiling fan? Is it consuming electricity even you off the fan switch?
Been
Electrician 5o years mate utter chap 👦
Great explanation.
Thanks alot. Stay tuned and don't forget to subscribe
your explanation is good, but you need to mention the extra cupper power loss I^2 R withen the cables which can be reduced if we improve the power factor.
Yes you are right but this is another discussion that is disadvatages of low power factor which is covered in my latest video. Thanks
Disadvatages of low power factor
ua-cam.com/video/s1oH6yO_wcE/v-deo.html
nice explanation
You should start with the conclusion: THE SHORT ANSWER IS ________
Nothing
What is the value of the capacitor
Nicely explained
Which capacitor value.
@@electricallectures capacitor used to increase the power factor
What is the advantage of opperate a sircut with leading power factor?
used to own a coil you needed to put between a few point on the meter and made the thing run backwards
Older non digital meters use magnetic field to read electric current, if you allegedly stuck a big magnet or put a magnet around the old meters it would slow them and cause your electric bill to go down I guess. Haven't tried it myself. But I've partially or fully bypassed meters before out of necessity on new construction. It's a general practice around here and nobody really says anything when we're building new houses.🤷
(in the USA)
Good morning sir,thank you for yours explanations, loud and clear, from your side how to reduce bill?
Thanks alot stay tuned
Thank you for clearing doubts
I don't know yet about the other, but some of the metering device used in houses calculate the power consumed by only reading the current without the voltage and power factor. They just use magnetic induction caused by the pasing current and show the kwh consumed
Is the power factor not included in the magnetic induction see 5amp in 2 amp back you get 3 amp of induction
Those so-called "electric saver" devices are actually a capacitor used to "dampen" the inductive effect of electrical devices with coils such as old flourescent lights or old aircond compressor on the electrical wiring's total resistance (inductance contributes to resistance in AC circuits). If the inductive effect is either small or absent due to usage of energy-saving electrical devices or flourescent lamps being replaced with LED counterparts, then the capacitor itself will contribute to the total resistance of the wiring via capacitive effect. Total resistance R (total) = R + √(xL^2 - xC^2)
yes for the surge...not for running amp..
I connected two 2.2mfd capacitor in parallel very near to the main switch(that is near to the meter).
Now Iam getting electricity bill continuously 25% less than before how?
Nice to hear the lecture. So the function of capacitor is to correct the Power Factor.
Yes of course
Yes u r right
Do how much value of capacity of capacitor to be use ti will be great to good
Dear for accurate calculation it depends on your load. For calculation you can watch my video calculation of capacitor for power factor improvement
Only large usage of KW/electricity that have inductive loads will benefit from capacitive power factor correction. It's better to focus on the efficiency of specific devices by factoring in lumens/watts or horsepowere/watts.
Yes rightly said
What is 5 star rating equipments than , why they are more expensive
I'm your new subscriber frm the Philippines.
You are ok! Your explanation is clear. The only thing unclear is the value of the capacitor, where to connect it & how to connect it.
I consume 250 KW every month. Now, forgetting all other videos and or explanations, let's go straight to the point. Would a 5 - 10 uF/450v rated capacitor used in washing machines & air conditioners achieve the purpose? Which one along that range is the best? Also, I constructed below a table (if you will), where, as I said, being straight to the point, you can fill up, based on your computations, the capacitor ratings in accordance to monthly consumptions.
KW USED CAP VALUE
400KW. ____uF
This, based on the assumption that the capacitor is wired in the main panel thru a circuit breaker or a fuse. Thanks in advance for the answer.
Thanks for your time and lovely comment. What I get from your question is that you are interested in finding the value of capacitor to be connected across main supply for power factor improvement. I will soon upload the video from which you can easily compute the values in the table
I lake your video 👍👍👍👍
Stay tuned and dont forget to subscribe
Capacitor are use to control apprant current and recative current
I would say that modern smart power meters may detect the existing PF and calculate pwr consumed as per formula mentioned. In contrast, OLD spinning disc meters turn cogs which moves the revolution counters depends on the number of revolutions to register pwr consumed by customers. In this case, adding a capacitor reduces current and disc spin speed, hence lower meter readings for the appliance used. It was benefitial then, but doubtful nowadays...
Yes absolutely correct
This useful video highlights the useless scam devices being sold as energy saving devices which connect across mains plug outlet s.
Thanks for understanding
If the voltage drop across the cable is large, does the change in power factor not cause the voltage drop in the conductors to decrease? The power loss on the conductor would decrease and the wasted power would be less. Maybe the calculation of economic efficiency should be more complex.
Voltage drop would increase but the total power remain the same
@@electricallectures The total power would decrease if the capacitor were placed next to the consumer => the total current decreases => the current per conductor decreases => the power lost per conductor decreases (real part) => the total bill decreases. Even if the inductive part is not billed.
Hai dear I dought single phase load on 1 kWh depending which number mfd capacitor putting low cosuption power repaly msg
What is Leading power factor ?
What does a 'smart meter' actually record?
What to do reduce bill in single pH capacitor what should be value?
Depending on your load. Please watch my video on capacitor calculation
for domestic in my country, there is no penalty for power factor. we charged by consumption kWh
Mostly only commercial or industrial users are penalized not domestic
,,i m from philipines,,really, kvar,,capacitor,,save electricity bill
I doubt the average home would have enough induction motors to affect the PF very much, I worked in mining for many years, I served my apprenticeship as a coal mine electrician in the 1960's and it was policy to install PF correction capacitors to reduce "wattless" current. The power utilities charged my employer extra for poor PF correction. Our coal mines contained vast numbers of electric motors from low HP to large 300HP motors, later mines much larger HP's, so without correction we'd have poor PF and the utilities would charge us extra. For many years fluorescent lights had built in PF correction capacitors.
It only became a “thing” for me once i installed a 36kw hot water heater
@@Scuba_Bro I would have thought most heaters are largely resistive, although perhaps AC in a coiled element is lowering the power factor a bit.
@@Scuba_Bro Thats a resistive load, shouldn't affect the pf
@@TimpBizkit that’s a good point, I just started to think that because it caused some lights to flicker but those are already LED lights on dimmers which are possibly just causing their own noise
Sounds great.
Stay tuned and dont forget to subscribe
@@electricallectures Done Subscribe Sir.
what is the capacitor valive sir
Now I understand the whole concept
True why can't make mandatory by bescom national savings.
Please can you do to reduce the bill?
Good concept. Nicely explained. But how o reduce electricity bill.
Use efficient inverter based appliances and most of above air conditioning setpoint must be set within comfort zone. No other short cut
Works for a watt hour meter but not with a demand, or kvar meter.
What is the best option to safe electricity ?
Most of the household appliances are now inverter based. They are efficient and intelligent and consumes less electricity. Also for airconditioning its always recommended to set your temperature setpoint to 26 or 25 not less than this.
Very good information.
Enjoy share with others and subscribe plz
what capacitor do I use for power factor?
Watch my video " capacitor calculation for pf imrovement"
Can we use power factor = 1 or more than that ???
Leading power factors can damage the power source devices such as generators, alternators, etc because generators, alternators cannot withstand the leading power factor.
Leading Power causes to increase the receiving end voltage than the sending end voltage in a transmission line.
Yes here comes the point:
IS every meter calculating also by cos(pf) ? - If Yes, it makes not much sense to avoid it at private home usage.
But I try to as fE a server PC takes 50 Watt at 0.87 pf, and so I had an opportunity to test calculation and result.
Adding the calculated 2uF Capacitor parallel to the load, the pf even got worse.
So I stuck anyway, but your point makes it take easier anyway ... IF our meter is doing V * I * cos0 ...
So far I see the higher the load of more PC and Monitor, the better the pf is getting ... another NOT energy saving solution. Ha
Its not the meter actually, its how the active power is calculated. The load will always have the same kw and most of the countries charge for kw
@@electricallectures Ok, here we got:
* I have a private 5(15) meter, added about 3 households on this meter and THERE I don't have data
* research yesterday about Thailand electric meter show that this 5(15) meter are NOT including a pf correcter, pdf's show far clear only Volt * Amp = P (Watt)
* also as private connection so far I see now extra charge as of 'more' reactive power or fined as of to low pf
* ... charge by KWh, yes ... but Watt/hour is still is "Volt * Ampere", and when the Ampere is higher as of leading or lagging reactive power, also Watt is higher than needed and so also the bill.
how to calculate the capacitor required for specific Amp load?
I will upload today. Power factor improvement calculation
Kudos for the Video! Apologies for the intrusion, I would appreciate your thoughts. Have you heard the talk about - Chiveard Wealth Storage Framework (do a google search)? It is a smashing one off product for slashing your energy bills by generating your own without the headache. Ive heard some super things about it and my cooworker at last got excellent results with it.
Capacitor Value to be use to reduce electricity bills
This is explained in the video
Watt-hr meters measure "True" power, not "Apparent" power. True power is the product of rms current in phase (no phase lag or lead) with rms voltage.
Volt-amperes measures all power passed through a distribution network, including reactive and actual. This is equal to the product of root-mean-square volts and amperes. They are different from the utility energy meters at consumers end
@@electricallectures The instrument to measure power at the consumer (customer ) does NOT measure Apparent power (real and reactive ) - For example: The meter at my residence measures real power only.
How to install the capacitor?
کنتور قدیمی میشه با برد سیستم خازنی چیزی دورش کند کرد؟
But why we use capacitor to chakki motor in 3 phase. Im also a electrician i have practical experience whe we add 11 kvar capacitor in 15 hp motor it takes 10 ampare but without adding capacitor it takes 15 ampare.
Ampere will reduce bcz power factor is increased by adding capacitor. Overall power of motor remain the same. You add capacitor in order to reduce current which has lots of benefits but not electricity bill
50uf is good...sir. 150 unit for mouth. .,
It reduces the input current
Yes it does
but by adding kvar,,capacitor reducing amphere, !!
How to use capacitor
In parallel with circuit
Capacitor bank will reduce 25 % electricity bill .
27 amps?? From where this arrived ... Not explained in details,,,
We have installed automatic capacitor Bank for our building which automatically switch on and switch off the capacitors to maintain the power factor 0.9 ,,, the overall electricity bill has drastically reduced...
If your building is commercial then obviously it will reduce sue to penality avoidance
In short, if the charge is based on KWH , the only way to reduce cost is to useless power.
Can it also help in stabilization of current?
True
Stay tuned and dont forget to subscribe plz
a power factor of .6 will use more apparent power by your motor running less power, restoring 40% to the grid and you will not be paying for it. Caps are added by the power company to make a pf of one so they get full billing.
True
Is there any other possible way to reduce electricity bill? I heard about diode. Can you explain it please.
The best is to use renewable energy source i.e. solar
Of course there is, it's called switching off appliances and lights not in use.
@@yauwohn nice bro.....where are you? Please come to me, I want to kiss you
it doesn’t make any change in power bill
Yes for domestic use
Then One my Question sir
Every place Bill should e same while ampere is no.matter it is less or high ampere
Secondly go for
.999 pf not at 0.80 ...why go for only .80
Electricity is charged for kW not current. It may be less or more for same kW depending on power factor.
Secondly most machines designed at 0.8 pf at rated load. You can only improve it with capacitor bank
.999pf. is ideal...but very difficult to achieve...the cost for trying to reach it will rise exponentially...and equipment will also be complex...not just more capacitors... ideally today 0.9-0.93 is more realistic
Capacitor used to increase the power factor
Yes . There is proper calculation for power factor correction. I have not covered that topic in this video
@@electricallectures is it ligal
So why do we hav cos phi correctors in factoryes...you dont have a clue about electricity metering
If you watch the video may be you should find your answer in it
If it really worked, there would be plug-in adaptors with a capacitor inside on the market, I never seen one.
Yes absolutely right
Tell me something, how can a radio station, or television station transmit 100k watts 24/7 and pay the power bill ? Just sayin, someone knows something !
They are consuming electricity from the grid depending on transmitted power requirement. It is to be noted that there are different types of tariffs and there are different criteria of calculating bills. Its not that simple. This video focuses mainly on residential and industrial tariffs
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Utter. Crappi
Can I use a capacitor to save for my electricity bill? If yes, which capacitor does save more electricity
No, you cannot use capacitor to save for electricity bill ! Why ?
For this we need to know about power in alternating current Circuit. !
The answer is going to be long !
There are 3 types of power in alternating current :
Active power : The active power is the real power, and it is measured in killowatts.(PRODUCT OF VOLTAGE•CURRENT•COSΦ cos Φ being the angle between voltage amd current).
Reactive power : The power which flows back and forth that means it moves in both the directions in the circuit or reacts upon itself, is called Reactive Power.reactive power does not do any real work and thus sometimes called as imaginary power. Measure in kVAR.(PRODUCT Of VOLTAGE•CURRENT•SINΦ.)
APPERENT Power : the vector combination of above 2 power is called apperent power ! Measure in KVA.(product of just voltage and current)
Now
What does capacitor do ?
It stores electrical energy in form of electric field which can supply current when there is change in voltage which keeps it constant ! For ac current it reacts in ac power in which current leads voltage by 90° (ideal capacitor)
What does inductor do ?
It stores electrical energy in form of magnetic field around it. It reacts in ac power i.e voltage lead current by 90° (ideal inductor)
Since almost all ELECTRICAL device are inductive in nature ( microwave oven, induction motor fan, pump motor) this gadgets consume reactive power along with real power which increses current In wire (real power current + reactive power current) and also reduce power factor(pf)
In real power the cos fi is also indicates nature of load.for example pf=1 means there is no reactive load.(only resistive)Below 1 to 0 is inductive load. And above 1 there is capacitive load. The more the pf is toward unity the better the power factor(less current)
Since electricity board charges only for active power the capacitor cannot generate or consume real power(exception are there). Thus using capacitors is useless for domestic consumer as well as commercial consumer.
But wait, Since industries use inductive load it also uses huge amount of reactive power.. Which causes huge amount of i^2r losses in wire resulting in more capacity grid and expenses for electricity board.thus electricity board not only measures active power but also reactive power.Reactive power can be compensated by introducing capacitor not one but many (usually bank which operates as per power factor being bad). This capacitor bank helps in increasing pf.
The electricity board penalize the industry for there pf being bad thus capacitor bank helps them maintain good Pf which not only save them from penalty but also get token of appreciation(usually a very little discount )from electricity board for maintaining good power factor.
Bottom line : capacitor does not save electricity neither electricity bill.
Sorry for long answer.
If you like the answer don't forget to upvote !
Great explanation. Very well done