What you are looking at is a two pole 100 amp breaker. Distribution panels in North America are designed to use 120/240 volts. Any two adjacent breakers will give you a 240 volt circuit and either leg to the neutral will give you 120 volts.
On the main breaker of a panel the number stated on the breaker is the amount of amperage that the breaker will allow to pass before tripping regardless of which leg the current passes through.
A 200 amp service will have a two pole main breaker with a rating stating its capacity of 200 amps.
Wire size into the breaker will give you a good clue as 100 amp breakers will use a #3 conductor whereas a 200 amp breaker will be fed with a 3/0 conductor.
NEC 310.16 #3 Thhn Copper
In copper 2/0 (2 Ought)
The meter is typically installed in the main circuit panel of the house. If you want to move it, you can do it as part of a service / panel upgrade. We did this when we moved into our new house - we replaced the 1950s vintage main circuit panel and 100A service with a newer 200A panel and service. It was about a grand, but we didn't actually move the panel from where it was, so it may cost more for what you want.
4 gauge AWG copper minimum. Use this:http://www.electrician.com/vd_calculator.htmlI found this invaluable when wiring our outbuildings. This one puts out the wire size:http://www.alternate-energy.net/voltlosscalc03.html
A #1 aluminum wire with a insulation factor of 90 degrees C is rated at 105 amps. Three #1 wires can be installed into an 1 1/2" conduit.
The wiring is like this:[[30KW Motor ---- Star Delt Starter(100A Breaker inside) ----- 200A Breaker------50A Breaker(Inside the breaker box which located inside the factory) -----100A Main Breaker]]Once I try to start the Motor, the Main Breaker trips immediately.
Home owner big jobYes but none of the equipment from the 100 amp service can be reused, it will be a total rebuild. It is a complicated job in as much as you have to know wire sizes, ampacity of wires and proper electrical workmanship. Such a project should be left to a licensed electrical contractor to take out the proper permits and call for proper inspections. By taking this route it will leave you confident that if any mishaps happen to the installation down the road your insurance company will be behind you 100%.Some 200A upgrades can be accomplished simply by making the existing service panel a subpanel of a new 200A main panel and adding as many more 100A subpanels as you may need in your installation. It is not very difficult but requires a licensed electrician to deal with the power-grid side of the connections to the new 200A drop.
You answered your own question. Call a pro, your life could depend on it!
Absolutely not. #2awg conductors are only good for about 100 amps depending on Cu or al. see nec table 310-16.
You would have to ensure that the service entrance cable can support 100A. Depending where you are located, you should inquire of your electricity provider if you are equipped for 100A. It may also require a meter change out.
Your main breaker cannot exceed the rating of your panel.
It depends on a number of factors. The size of the service wires, the meter rating, the main breaker panel rating, etc. will have to be rated for the amperage you want to go up to.
== == == == Multi-unit load calculation Use NEC Annex D.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 JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
The two basic types of circuits are series and parallel circuits.
It is illegal for you to do this yourself and the power company won't reinstall your meter if you do. Call an electrician. Because of the danger of a fire for an improperly sized service cable , you should seek the advice of a certified electricion, or your local electric provider or an employee in the electric dept. in a home improvement store.
It depends on what you mean by 'main circuits'. One example could be 'radial' and 'ring'.
well it usually has a 200 A main breaker the 200A panels in the largest can hold 40 breakers panels in 200A can also have 20 or 30 slots these are cheaper so politicians, developers and scoundrels will generally put these in new houses ... making adding anything very difficult. half size breakers are still sold so circuits can be added to the small panels but the double breakers get 4x as hot ... and are very dangerous. for that matter ungrounded receptacles are still sold and are not legal in new or old work or replacement in short if you get a 200 amp panel get the 40 slot one for the extra 20% of cost you can get a 225A panel and get 42 circuits which is the maximum allowed
household circuit comprises of main swith,circuit breakers,wires and control switches.
1) If you are tripping the main breaker and you do not have an electrical fault in the home. 2) If you are installing additional circuits or appliances and you expect to exceed 80% of the load capacity of the existing service panel.
Its not recommended because your new main breaker will allow up to 100 amps and your old wire can only safely handle 60amps. If you put a 60amp main breaker in the new box, that would be acceptable. No, it is perfectly safe. Because the box is overrated, there is no problem. If the box is the main panel, and not a subpanel, install a 60A main breaker so you cannot overload your service. If it is a subpanel this 60A breaker should be in the main panel.
When I went to a 100 amp service I could not find a 100 amp. breaker in stock. I used a 60 amp. breaker and have never blown it. The 200 amp you are using can handle up to 200 amps, but if you use a smaller breaker it will only handle up to that amperage. The 200 amp is usally the total amperage of all the breakers comming out of the box. You will probably never come anywhere near using 200 amps at one time.
The main breaker limits the overall current to the building. Most buildings have many branch circuits that sum to more current than the service is rated for. This is not a problem as all the branch circuits are not used under high current draws at the same time. The main breaker protects the main wiring in the meter and to the transformer, and the transformer itself, from heavy current loads. It also protects from shorts in the main distribution panel.
Gate circuits should be isolated from the main power circuit to avoid any damage to the power circuit if gate is damaged.
A main switch controls the entry of power into the property. Inside the property there may be several circuits that are individually switched
For DC circuits, an alebraic sum is required. For AC circuits, a phasor sum is required.