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what parameter stay the same in LCR circuit ?
What else can I help you with?
Why UPF wattmeter is used in SC test?
Alright, honey, listen up. The UPF wattmeter is used in short-circuit tests to measure the power factor of the equipment under test. It helps in determining the efficiency and performance of the system during a short-circuit condition. So, in simple terms, it's like having a nosy neighbor peeking in to see if everything's running smoothly when things go haywire.
Is a power factor of 1 possible?
No, as 100% efficiency is not possible.AnswerYes, it occurs at resonance. That is, when a circuit's inductive reactance is exactly equal to its capacitive reactance. This can be achieved by adjusting the frequency of the supply until resonance is achieved. Incidentally, power factor has nothing to do with 'efficiency'.
Can you replace a 47UF 160v capacitor on your tv with a 100UF 160V?
That depends what circuit it is in. If it is in a sweep circuit (vertical/horizontal) no because it will change the frequency of the circuit. If it is in a power supply circuit, probably yes becuase it is probable only being used as a filter. BUT if that leg of the power circuit supplies a sweep circuit, no.
What are the limitations of norton's theorem?
norton's theorem is valid only for linear elements.. The power dissipation across norton equivalent circuit in not identical with the power dissipation in real system circuit...
What is the formula used to calculate electrical power in an ac circuit?
The following equation only works for a balanced three-phase load, that is, where each of the three phases is identical in all respects:P = 1.732 VL IL x power factor, where VL and IL represent line voltage and line current, respectively.For unbalanced loads, you must determine the power of each phase, using the following equation, and add them together to find the total power:Pp = VP IP x power factor, where VPand IP represent phase voltage and phase current, respectively.
What is the only thing that can use power in an electrical circuit?
The load that is connected to the circuit is what draws the power of the electrical circuit.
Why UPF wattmeter is used in SC test?
Alright, honey, listen up. The UPF wattmeter is used in short-circuit tests to measure the power factor of the equipment under test. It helps in determining the efficiency and performance of the system during a short-circuit condition. So, in simple terms, it's like having a nosy neighbor peeking in to see if everything's running smoothly when things go haywire.
Can short circuit occur when power is not used?
No because a circuit without power applied can only be shown to be a short circuit after the power is applied between the 'right' two points.
Power factor of dc ballast is 0.8. what will be the power factor same ballast in AC?
Power factor is an AC only term, and has no meaning for DC.
Is a power factor of 1 possible?
No, as 100% efficiency is not possible.AnswerYes, it occurs at resonance. That is, when a circuit's inductive reactance is exactly equal to its capacitive reactance. This can be achieved by adjusting the frequency of the supply until resonance is achieved. Incidentally, power factor has nothing to do with 'efficiency'.
Why to use kva?
The kVA (kilovolt ampere) is the vector sum of real + reactive power in an AC circuit. The kW (kilowatt) is a measure of the real power in that circuit. Inherently, a circuit will not require only real power, but also reactive power. Thus kVA is a more meaningful value when considering sizing equipment (such as transformers, bus work, breakers, etc.) because this equipment must be sized for the total current drawn, not just the real power usage.
Can you replace a 47UF 160v capacitor on your tv with a 100UF 160V?
That depends what circuit it is in. If it is in a sweep circuit (vertical/horizontal) no because it will change the frequency of the circuit. If it is in a power supply circuit, probably yes becuase it is probable only being used as a filter. BUT if that leg of the power circuit supplies a sweep circuit, no.
What do you call a number with only one prime factor?
A power.
Why use relay insted of switch?
Because a switch is a 'permanent' action. A relay only completes the circuit while there is power. If there is a fault in the circuit, a switch will still allow power through, whereas a relay will break the circuit.
Which power factor is advantage lagging or leading and why?
A lagging power factor is caused by inductive reactance, which is composed of resistance and inductance -- and the resistance component lowers the supply volts. A leading power factor provides capacitive reactance that actually helps improve source voltage -- this helps motor loads run cooler.
What the prime factor of 49?
The only prime factor of 49 is seven (7).
How many pathways exits for electricity travel on in a series circuit?
In a series circuit, there is only one path for electricity to travel along the circuit from the power source through each component connected in series back to the power source.
