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Why am I getting 240 volts from L1 to L2 and 240 volts from L1 to neutral and 0 volts from L2 to neutral?
Wiki User
∙ 8y ago
Answer for Canada, USA and countries running a 60 Hz, 120/240 volt, split supply service.
If this is a true question and not a scenario you should get an electrician to look at the panel. A diagnosis can not be given on just the information that is given. Additional information needed is whether there is a voltage between the ground and L1 and ground and L2. Also was the original voltages taken with all of the branch breakers in the off position. Also whether the bonding bolt was in position between the neutral and the ground. Is the ground wire attached to the neutral bus and at the other end to the ground rod. With the main breaker off and all of the branch breakers off is their continuity between L1 and neutral and L2 and neutral.
The voltage must be checked on the line side of the main breaker with the main breaker off to establish which side the fault is on, the utility side or the home owners side. This must be done by a qualified electrician who knows what they are doing. One wrong move and a serious shock or worse could be the result.
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself, on electrical circuits, equipment or appliances always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Wiki User
∙ 8y ago
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Can a 15 amp 240 volt circuit breaker be mounted in lower locations than the very top positions in the electrical panel?
Yes, a 15 amp 240 volt circuit breaker can be mounted in lower locations in the electrical panel. As long as the breaker is rated for the voltage and current, it can be installed anywhere in the panel that is designated for that size of breaker. However, it is important to follow the manufacturer's guidelines and local electrical codes when installing circuit breakers.
240 volt hook up compared to 110 volt hook up?
A 240 volt hook up provides more power compared to a 110 volt hook up, which means it can support larger appliances or equipment that require higher energy consumption. 240 volts is commonly used for larger household appliances such as stoves, dryers, or water heaters, while 110 volts is typical for smaller household electronics and devices. Make sure to use the appropriate voltage for your specific appliances to avoid damage.
Is 277 volt one hot wire?
No, 277 volts is the line to neutral of a 480 volt wye three phase system. L1- N, L2 - N and L3 - N will give you 277 volts. L1 to L2. L2 to L3 and L3 to L1 will give you 480 volts.
What voltage would be measured from any phase to ground on a 480 volt 3 phase wye system?
The voltage measured from any phase to ground on a 480 volt 3-phase wye system would be approximately 277 volts. This is because in a wye configuration, the line-to-neutral voltage is √3 times smaller than the line-to-line voltage. Given a line-to-line voltage of 480 volts, the line-to-neutral voltage would be 480 / √3 ≈ 277 volts.
How do the two 120 volt lines from the power grid become 240 volts when joined together?
When two 120 volt lines from the power grid are joined together, they are 180 degrees out of phase with each other. This means that when one line is at its peak voltage, the other is at its minimum voltage. By combining these two lines, the potential difference between them adds up to 240 volts, resulting in a 240 volt supply.
In a 220 volt AC single phase circuit the voltage from either leg to the neutral is?
The proper terminology is L1,L2,N. N is for neutral and it is this wire that is grounded. The voltage measurement from the L1 to N will give you 120 volts. Also from L2 to N will give you 120 volts and as you know from L1 to L2 will give you 240 volts. Single pole breakers in the panel board starting at the top, alternate between L1 and L2 all the way down to the bottom. These breakers all have 120 volt outputs. If you plug a 2 pole breaker into two slots then you get 240 outputs because L1 and L2 are adjacent to one another.
What voltage is commonly found in homes?
In North America 120/240 is the main voltages used. It is known as a three wire system. L1 to L2 supplies 240 volts. L1 to N supplies 120 volts and L2 to N supplies 120 volts.
How do you connect a 115 v circuit when only a 230 v location is available?
Usually in a 230 volt situation, there are three wires. One wire is called neutral or ground. When you hook a motor or lamp between one wire and neutral, you get 115 volts. They are designated usually as L1, L2 and neutral. Things hooked between L1 and L2 are at 230 volts. Anything between L1 and neutral or L2 and neutral are at 120 volts.
How many how many amps in 100 watts?
A three wire home distribution service rated at 100 amps has a wattage capacity of;From L1 to L2 at 240 volts x 100 amps = 24000 watts or 24 kilowatts. From L1 to neutral at 120 volts x 100 amps = 12000 watts or 12 kilowatts. From L2 to neutral at 120 volts x 100 amps = 12000 watts or 12 kilowatts.
How do you create 120V from 240V 3 wire L1 L2 G in a residential system?
The proper terminology is L1,L2,N. N is for neutral and it is this wire that is grounded. The 120 voltage is already there to use in a residential system. The voltage measurement from the L1 to N will give you 120 volts. Also from L2 to N will give you 120 volts and as you know from L1 to L2 will give you 240 volts. Single pole breakers in the panel board starting at the top, alternate between L1 and L2 all the way down to the bottom. These breakers all have 120 volt outputs. If you plug a 2 pole breaker into two slots then you get 240 outputs because L1 and L2 are adjacent to one another.
Is 277 volt one hot wire?
No, 277 volts is the line to neutral of a 480 volt wye three phase system. L1- N, L2 - N and L3 - N will give you 277 volts. L1 to L2. L2 to L3 and L3 to L1 will give you 480 volts.
What is an AC single phase 2 wire system?
two wires coming off the secondary of the transformer ex. residential voltage of 120 volts each line, and one neutral wire, L1 to neutral is 120 volts, L2 to neutral is 120 volts, L1 to L2 is 240 volts.AnswerA single-phase, two-wire, system comprises a line conductor and a neutral conductor. In European countries, the line conductor for a residential supply is at a nominal potential of 230 V with respect to the neutral.In North America, a 'split phase' system is used for residential supplies; this is a single-phase, three-wire, system comprising two line conductors which and a neutral conductor. The nominal potential difference between the line conductor is 240 V, while the potential of each line conductor with respect to the neutral is 120 V.
How do you get line voltage from a single phase 3 wire system?
Answer for USA, Canada and countries running a 60 Hz supply service.A three wire system uses two lines L1 and L2 and a Neutral. You can obtain a 120 volt potential from L1 to N or 120 volt potential from L2 to N. Between L1 and L2 you can obtain a potential of 240 volts.
How do you run110v to 240v?
On a home electrical panel board the wiring numbers go from left to right, top to bottom. There are 2 hot legs coming into the panel. L1 and L2. Breakers on L1 are 1,2,5,6,9,10. Breakers on L2 are 3,4,7,8,11,12. This is a 12 circuit board. This configuration allows every two adjacent breakers to connect to 240 volts. Example 1 and 3, 3 and 5, 5 and 7, 7 and 9, 9 and 11. Same with the even number side. So you see that a two pole breaker connects across the two hot legs L1 and L2 no matter where it is on the panel board. Any of these breakers on a panel board to the neutral will give you 120 volts no matter if the supply leg is L1 or L2. Just remember L1 to Neutral equals 120 volts, L2 to Neutral equals 120 volts, L1 to L2 equals 240 volts. The amperage of a breaker is a limit of the amount of amperage it will allow to pass through its circuit before it will trip. The wire has to be correctly sized for the breaker. Under sized wire will heat up if more current is applied to it that its rating will allow.
Can a 15 amp 240 volt circuit breaker be mounted in lower locations than the very top positions in the electrical panel?
Yes, a 15 amp 240 volt circuit breaker can be mounted in lower locations in the electrical panel. As long as the breaker is rated for the voltage and current, it can be installed anywhere in the panel that is designated for that size of breaker. However, it is important to follow the manufacturer's guidelines and local electrical codes when installing circuit breakers.
Can you single phase 220VAC in place of three phase 220VAC?
Yes, just use L1 and L2 ( just 2 of the 3 legs), or one of the legs to a neutral wire if equipped. Just make sure the voltage is the same as the 220 volts you wish to have with single phase service.
240 volt hook up compared to 110 volt hook up?
A 240 volt hook up provides more power compared to a 110 volt hook up, which means it can support larger appliances or equipment that require higher energy consumption. 240 volts is commonly used for larger household appliances such as stoves, dryers, or water heaters, while 110 volts is typical for smaller household electronics and devices. Make sure to use the appropriate voltage for your specific appliances to avoid damage.
