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What is the amperage rating of an 2800 VA computed load connected to a 120 volt single phase branch circuit?
Wiki User
∙ 12y ago
Consider the 2800va (v)olts x (a)mps the same as 2800 watts (at unity power factor). The formula for amps is A = W/E, 2800/120 = 23.33 amps.
Wiki User
∙ 12y ago
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What are four characteristics of parallel circuit?
an example would be thus. if you had say 2 1.5 volt batteries each say .006 amps. When these batteries are in series the positive end of one is in contact with negative end of the other, pretty much like a common flashlight, and the voltage would be 3 volts., .006 amps. When the same two batteries are connected negative to negative and positive to positive the voltage would still be 1.5 volts but the amperage would be .012 amps. (amps doubled when in parallel, voltage doubled when in series)
In a parallel circuit what is the total current equal to?
In all branches of a parallel circuit, it is voltage that is the same. Across each parallel branch of a circuit, we'll measure the same voltage. Probably the best example of equal voltages appearing across all branches of a parallel circuit is a household electrical distribution curcuit. The voltage at any outlet where you'd care to plug in an appliance or device will be the same. A fan plugged into an outlet in a bedroom will "feel" the same voltage as it would if it were in the living room and plugged into an outlet there.One other way to look at things like this is that each branch of the parallel circuit is connected across the voltage source. Each branch could be looked at as an "independent" circuit, and any given branch doesn't care what is happening in any other branch. Does turning that fan we mentioned on and off, or even unplugging it from the outlet affect the operation of, say, the refrigerator? No, it does not. Any device plugged into an outlet is connected "directly" to the source of voltage. And each parallel branch of the circuit will operate independently of any other branch. We know that the voltage in (or across) any branch of a parallel circuit is the same as the voltage across any other branch.
Is the trolley busway considered to be a feeder or a branch circuit?
Feeder because the trolley will have overcurrent protection. Branch circuit is the final OCD to the load.
Can each branch in a parallel circuit may hold several resistors?
Yes, but then it would be a 'series-parallel' circuit, not a 'parallel' circuit!
What is the allowable voltage drop for a branch ct?
The voltage drop in any branch (closed loop) of a series parallel circuit is equal to the APPLIED VOLTAGE(NOVANET) Without looking in my codebook, I believe it is 2% on a branch circuit.
What is the amperage rating of an 9250 VA computed load connected to a 208 volt three-phase branch-circuit?
Divide 9250 VA by 208 V and again by 3, to get a per phase load of 14.8 A. If the load is connected delta, then multiply by 1.732 (square root of 3) to get 25.7 A per phase current.This calculation, of course, is sensitive to your definition of 208 V. I took it to mean delta, driving a delta load.
What is power rating of appliances?
Wattage = voltage x amperage. Every appliance in North America is built to work at 120 V, so you have the voltage. The amperage rating is probably written in the microwaves manual if the wattage is not. Remember the amperage you put on a circuit can't be more that 80% of what the wiring is rated for in the branch circuit.
What is the purpose of a branch circuit?
To supply power to all electrical devices in a house, apartment, condominium, etc. A branch circuit is connected to the circuit breaker panel which is usually found in a closet or a cupboard
What is the purpose of branch?
To supply power to all electrical devices in a house, apartment, condominium, etc. A branch circuit is connected to the circuit breaker panel which is usually found in a closet or a cupboard
What is the purpose of a branch?
To supply power to all electrical devices in a house, apartment, condominium, etc. A branch circuit is connected to the circuit breaker panel which is usually found in a closet or a cupboard
Can you run an extra set of wires off a 20 amp breaker?
No, this is stated very clearly in the electrical code. Only one branch circuit is to be allowed connected to each individual circuit breaker no matter what the amperage is. If a new branch circuit is installed and there are no spare breakers then most distribution panels have the ability to let tandem breaker be installed in it. Tandem breakers have two terminals and two handles and have the ability to fit into a single slot in the distribution panel.
What happens to an ammeter when there is a break in a circuit?
An ammeter reads the current that is flowing through a branch of a circuit. If there is a break within that same branch of the circuit, current will not be able to flow through that branch of the circuit as it forms an incomplete loop, so the ammeter will read 0 A of current. If there is a break in a circuit in a branch that is not connected to the ammeter however, the ammeter will give a higher reading of the current. This is assuming that the break in the other branch does not short out the branch with the ammeter attached, and that the circuit can still form a complete loop without that branch.
What is the difference between a run and a circuit?
run in a electrical system means a wiring & conduit runs coming from Panel Board Circuit Breaker to its branch circuit loads in a circuit. while circuit is a designated number of branch breaker in a panel board where power load was individual connected.
What is the maximum cannot exceed total amperage allowed on a 20 amp 120 V circuit?
The total allowable load in amps on a branch circuit by Code is 80 per cent of the circuit rating. Therefore, a 20 amp circuit shouldn't be loaded over 16 amps total.
What ampacity should branch circuit conductors have?
Branch circuits wire sizes are governed by the connected load amperage of the circuit. The wire size ampacity then governs the size of the breaker that is used to protect the circuit from overloading. For general home wiring circuits the conductors used are, receptacles and lighting #14 - 15 amps, dedicated circuits load dependant, hot water tank and baseboard heaters #12 - 20 amps, clothes dryer #10 - 30 amps, range #8 -- 40 amps.
Suppose you have a number of light bulbs connected on a circuit with each bulb on a separate branch what happens if one of the bulbs burns off?
As they are connected in parallel (each has its own branch) the remaining bulbs keep shining exactly as they did before.
DoesCode permit connecting receptacles to a 20ampere branch circuit using short lengths of 14AWG conductors as the pigtail between the receptacle terminals and the 12AWG branch-circuit conductors?
No. This practice is a violation of Article 210.19 (A) of the NEC. "Conductors of branch circuits supplying more than one receptacle for cord-and-plug-connected portable loads shall have an ampacity of not less than the rating of the branch circuit."
