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How much rating of voltage and current is required for a house?
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoMost residential power is supplied as 240 volt. A more important factor would be how many amps the service is sized for. Most modern residential services are supplied 200 amp service, which should be sufficient for an all electric house.
Wiki User
∙ 10y agoIn the UK the service rating is 60 amps at 240 volts.
In North America the average is 100 to 150 amps. All new homes being built today usually have a 200 amp 42 circuit distribution panel installed.
Wiki User
∙ 14y agoTwo 120 legs are inside breaker panel. 220v.
Wiki User
∙ 11y agoalternating current
Wiki User
∙ 10y ago60 for a small one, 100 for a big one.
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Why transformer is rating kva?
the short answer: to distinguish as an AC transformer, as opposed to a DC transformer. The long answer: A Kva stands for Kilo-Volt-Amps. The transformers mounted on telephone poles work with hundreds of thousands of volts so rather than 750,000 V, we use the abbreviation kilo, being the metric prefix for thousand and write 750 kV. As for 'VA' some high school physics tells us Voltage*Current=Power. voltage being measured in volts (V), current in amperes or amps for short (A), and power being Watts (W). However alternating current is a very fickle beast and the voltage and current vary in a wave like fashion causing the power to reverse direction. Other factors come into play such as power sag, types of electrical loads, and wasted energy, the equation soon becomes very messy. at times the power is actually negative and is flowing away from your house! so to simplify things they use Volt-Amps to represent the maximum amount of power as an absolute value that the electricity can deliver. as opposed to the USEFUL amount of power which is lower due to resistances in the wires and other loses. Engineers have to worry about the KVA when designing a system so it can handle everything thrown at it, keeping the wires from melting and that transformer from blowing up!
Techniques required for increasing the input impedance?
...of what? to a house, to a breaker (to lower fault current level?), to an amplifier circuit?
Why alternating current is represented by sinusoidal wave form?
AC voltage, like the voltage in your house, is typically referred to as 120vAC. This means the voltage swings 120V positive and 120V negative 60 times per second (60 Hz) 360 degrees total (sine wave). Current and voltage go hand-n-hand so the current alternates with the voltage. the RMS value is what we experience at the output (160vAC is actually sent to the circuits)
Why is the electric current you receive at your house is called alternating current?
The voltage and current are delivered in a sine wave that goes positive and then negative at 60 cycles per second. Google sine wave to see what a sine wave looks like.
What are advantages power supply in computer?
The power supply converts the high voltage (e.g. 120VAC in US, 240VAC in Europe) alternating current house electricity supply down to the various different low voltage direct current supplies needed by different devices that make up the computer. These low voltage direct current supplies are tightly regulated in the power supply circuitry to prevent transients in the house electric supply from perturbing the computer's electronics as well as to compensate for variations in power demand as the different devices that make up the computer operate.
Will a fan requiring 230 volts ac run on normal house current?
Yes if the house supply is 220-240 volts. The required voltage range should be printed somewhere on the fan.
What is the difference between ac voltage and dc voltage?
access current ( like plugs in your house ) direct current (like batteries)
Are high voltage transmission lines 60Hz like the wiring in a house?
Yes, the frequency stays the same. Only the voltage and current change as the voltage is stepped down.
What is the same in a parallel circuit?
Always voltage constant in parallel circuit if you look your house wiring all are in parallel therefore 220 volt present in every house but current is different
How does ac dc power supplies work?
The mains to the house is an alternating current and this high voltage is stepped down using a transformer. The low voltage secondary alternating current is converted to direct current using 4 diodes wired as a bridge rectifier. The 'lumpy' direct current is smoothed using an electrolytic capacitor to smooth the resulting dc. It may need to be voltage regulated if the circuits it feeds are voltage sensitive.
How much electricity does a house need?
its not a question of voltage but current(amps) a load calculation needs to be done to determine service size required refer to section 8 of the cec CIRCUIT LOADING AND DEMAND FACTORS section 8-200 (1)
What is the voltage that causes the most human deaths each year?
120 volts A/C, or some might refer to it as house current.
How do you check a transformer for ac house unit?
Check that the input and output voltages are as required. Check that the transformer is big enough for the current required for the unit you have.
Why transformer is rating kva?
the short answer: to distinguish as an AC transformer, as opposed to a DC transformer. The long answer: A Kva stands for Kilo-Volt-Amps. The transformers mounted on telephone poles work with hundreds of thousands of volts so rather than 750,000 V, we use the abbreviation kilo, being the metric prefix for thousand and write 750 kV. As for 'VA' some high school physics tells us Voltage*Current=Power. voltage being measured in volts (V), current in amperes or amps for short (A), and power being Watts (W). However alternating current is a very fickle beast and the voltage and current vary in a wave like fashion causing the power to reverse direction. Other factors come into play such as power sag, types of electrical loads, and wasted energy, the equation soon becomes very messy. at times the power is actually negative and is flowing away from your house! so to simplify things they use Volt-Amps to represent the maximum amount of power as an absolute value that the electricity can deliver. as opposed to the USEFUL amount of power which is lower due to resistances in the wires and other loses. Engineers have to worry about the KVA when designing a system so it can handle everything thrown at it, keeping the wires from melting and that transformer from blowing up!
Can you run 125v air conditioner on 120v house current?
Yes ,it's the same voltage.You have a +-5% of voltage range
How do you start when designing circuits?
The answer to this question must start with another question, "what kind of circuit?" There are residential house wiring circuits, 3-phase power circuits, electronic circuits, analog and digital circuits, etc... There are many parameters involved in creating a well designed circuit, and would take an entire electrical engineering degree to understand them all. However, let's just go over the basics to give you an idea. You should begin with the load parameters. The load is whatever is being powered and becomes the focal point of the circuit. Sometimes the load may vary, or a circuit can be designed for a wide range of loads. Nevertheless, you always want to design a circuit so the the load doesn't burn out or get damaged in any other way. Therefore, I like to begin with the maximum power that the load can consume. Power can be calculated as voltage*current, (voltage)^2/resistance, or (current)^2*resistance. Say for instance, I am building an amplifier circuit to drive a speaker. The maximum power rating on the speaker may be 50 W. Most speakers are 4 or 8 ohms. Therefore, the 50 W maximum power rating sets the limit on the current and voltage used to drive the speaker according to the above relationships for power. Now, you have reduced one parameter, power, into two parameters, voltage and current. Next, look at the maximum current and voltage rating of the load. If the maximum voltage is, say 10 V, then determine the amount of current needed at 10 V to produce 50 W. If this is above the maximum current rating, then something is wrong. It should be well below the maximum current allowable. So the next step is reduce the voltage to, say 5 V, which is only half the maximum. Now recalculate the current needed to reach 50 W and decide if this is above the maximum current rating. Much of electrical engineering is this trial and error process. As you work your way from the load to the source, make sure that you never exceed any of the maximum ratings, whether it be voltage, current, or power. When you are finished with the design, go back and recalculate everything to ensure that it meets specifications. For more advanced circuits that may involve frequency responses, parameters such as capacitance and inductance become extremely important. Finally, designing a residential house wiring circuit has parameters that cannot change, such as the voltage. If you go across one hot and the neutral, the voltage is about 120 V. If you go across both hots, the voltage is about 240 V. This makes things much easier and all that you have to worry about is current and power. Designing a circuit that functions well is an art, takes lots of practice, and requires many checks. I hope this article can get you started in the right direction!
How do you power a whole house with one generator?
Use a generator with a high enough rating to power the house, of course. Trying to power a house that draws 60A of current with a 10A generator is just never going to work.
