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How would you measure power using three watt meter and one watt meter for balanced and unbalanced loads?
Wiki User
∙ 12y ago
The 'one wattmeter method' can only be used for balanced, wye-connected, loads where the load's neutral point is accessible. The wattmeter's current coil is inserted into any line conductor, and the voltage coil is connected between the same line and the neutral point. The wattmeter reading indicates the power of one phase, so the total power is three times the wattmeter reading.
To measure the total power of a balanced or unbalanced wye- or delta-connected load, it is only necessary to use twowattmeters -this is called the 'two wattmeter method'. In this case, the current coils of each wattmeter are inserted into any two line conductors, and the voltage coils are connected between the two line conductors and the third line conductor. The sum of the two wattmeter readings will indicate the total power of the load.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoone wattmeter method' can only be used for balanced, wye-connected, loads where the load's neutral point is accessible. The wattmeter's current coil is inserted into any line conductor, and the voltage coil is connected between the same line and the neutral point. The wattmeter reading indicates the power of one phase, so the total power is three times the wattmeter reading.
To measure the total power of a balanced or unbalanced wye- or delta-connected load, it is only necessary to use
twowattmeters -this is called the '
two wattmeter method'. In this case, the current coils of each wattmeter are inserted into any two line conductors, and the voltage coils are connected between the two line conductors and the third line conductor. The sum of the two wattmeter readings will indicate the total power of the load.
Wiki User
∙ 9y agoThe three-wattmeter method work in a 3-phase system even when it's unbalanced. For a system that's guaranteed balanced one wattmeter can be used, and mutiply the answer by 3.
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What is the difference between Kilowatt Meter with balanced load and with unbalanced load?
'Balanced loads' apply to three-phase a.c. loads. A three-phase kilowatt hour meter will measure both balanced and unbalanced loads, when correctly connected.
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You can measure the electrical current with an amp meter. Amperage measures the current flow.
What device is used to measure the resistance of a resistor?
You can use a multi-meter to measure resistance. The specific portion of the meter for measuring resistance is called an ohmmeter.
How do you measure alternating current voltage and resistance?
You measure current by inserting an amp meter in series with the circuit or using a clamp-on meter to measure current by induction. You measure voltage with a volt meter across the supply. You measure resistance in ohms across the resistance. Luckily all these functions are in the same meter in most cases.
Which meter used to measure the batteery voltage?
A voltmeter.
What is the difference between Kilowatt Meter with balanced load and with unbalanced load?
'Balanced loads' apply to three-phase a.c. loads. A three-phase kilowatt hour meter will measure both balanced and unbalanced loads, when correctly connected.
What are the Effects of unbalance loading on kWh meter?
You are, presumably, talking about an unbalanced three-phase load. The answer is no, because the wattmeter takes unbalanced loads into account.
How do you measure power in a three phase circuit?
Use the following formula Kilowatts = I x E x 1.73 x pf/1000 where pf = power factor. If you have the access to a three phase watt meter, connect it into the circuit for a specific time interval and you will obtain a reading in kWhs.AnswerThe above answer is only applicable to a balancedthree-phase load. If the load is unbalanced, then you need to determine the power of the three individual loads, and add them together. If you have access to wattmeters, then (in accordance with Blondel's theorem) you can use one less wattmeter than there are conductors supplying the load, to measure the total power whether balanced or unbalanced.
How do you measure the power by 3 voltmeter method?
first we connect the 3 volt meter in three loads then we measure the voltage and find the resistance of the loads then put the formula p=v/r so in this method we get the power by using 3 volt meter ....(prashant)
If your breaker box is balanced will your electric bill be less?
No. In North America you are billed on the consumption of watts (amps x volts). Both legs L1 and L2 are monitored inside the watt-meter that is situated on the side of your house and are independent from the unbalanced or balanced load on the neutral.
What comes from the greek word metron meaning measure?
θερμός/thermos: warm +μέτρον/metron: meter, measure =θερμόμετρο/thermometron = thermometer("warmth-measure")Also: thermos, thermal, thermostat, thermonuclear, thermodetonator, hypothermia, thermodynamics, etc.
How can you measure a square meter?
Using a meter stick, measure out a meter. Then turn pi/2 radians according to the unit circle and measure out another meter.
Why is one watt meter method of power measurement not applicable to unbalanced circuits?
The one wattmeter method will only measure the power of the phase to which it is connected. So, by reconnecting it to measure each phase separately, you can measure the power in each phase in turn, and add them up to give you the total power.
Convert cubic meter into square meter?
Impossible!!! Cubic meter is a volume measure and square meter is a measure of area!!!
What difference square meter and linear meter?
A square meter is a measure of area; whereas a linear meter is a measure of length.
How do you convert grams per square meter to kg per cubic meter?
Grams are a measure of weight, a square meter is a measure of area, and a cubic meter is a measure of volume. These are not comparable.
How to convert meter into kilogram?
You don't. Meter is used to measure length, kilogram is for mass.You don't. Meter is used to measure length, kilogram is for mass.You don't. Meter is used to measure length, kilogram is for mass.You don't. Meter is used to measure length, kilogram is for mass.
