It is in some places, but not generally because it requires at least 3 wires, and can only transmit 2/3 of the power of an equivalent 3 wire, 3 phase system.
In a two-phase connection, the phases are displaced by 90 degrees. Two lines (not 'phases') of a three-phase system will provide a single-phase supply, not a two-phase supply.
furnaces in industries...
It's unlikely you have a two-phase supply. Two-phase systems (two phases, displaced by 90 electrical degrees) are very old, and there are very few two-phase systems around. Assuming you really mean 'two phase', t's unlikely, therefore, that you can use a three-phase energy meter using its standard terminals.
If you are asking whether it is possible to upgrade from single phase to two phase, then you should understand that a two phase system is archaic and will not be available from your electricity supply company. If you are asking whether your company can supply two lines (out of three) it's quite unlikely -they will normally supply single phase or three phase! You can likely upgrade to three-phase if you have a reason to do so -e.g. to operate three-phase motors. As for the cost -you'll have to check that our yourself!
With no three phase power supply you can't use a three phase motor of any kind at all!
In a two-phase connection, the phases are displaced by 90 degrees. Two lines (not 'phases') of a three-phase system will provide a single-phase supply, not a two-phase supply.
Your question is rather confusing, as you do not specify what you mean by 'panels'. Your reference to a 'two-phase' supply is also confusing because two-phase supplies are an archaic precursor to 'three-phase' supplies, and it's unlikely you'll come across any two-phase supplies anywhere these days!
Not necessarily. Two single-phase supplies could be supplying the same phase, which means you don't get the same range of voltage options you get with a true two-phase supply.
furnaces in industries...
It's unlikely you have a two-phase supply. Two-phase systems (two phases, displaced by 90 electrical degrees) are very old, and there are very few two-phase systems around. Assuming you really mean 'two phase', t's unlikely, therefore, that you can use a three-phase energy meter using its standard terminals.
A Scott transformer converts 3-phase to 2-phase and vice versa, so if you get a Scott transformer it can convert a 2-phase supply into 3-phase for the motor. Caution: the 2-phase supply has to be a genuine 2-phase as defined, with 90 degrees phase between the two phases, and these are extremely uncommon. A Scott transformer CANNOT be used with the split-phase supply found in many US homes which have a 240 v single-phase transformer with the centre earthed and connected to a neutral wire to produce two 120 v circuits.
If you are asking whether it is possible to upgrade from single phase to two phase, then you should understand that a two phase system is archaic and will not be available from your electricity supply company. If you are asking whether your company can supply two lines (out of three) it's quite unlikely -they will normally supply single phase or three phase! You can likely upgrade to three-phase if you have a reason to do so -e.g. to operate three-phase motors. As for the cost -you'll have to check that our yourself!
Technically two-phase has not been used for about 100 years, but a 240 v supply comes from a 240-v single-phase transformer. One of those with a centre-tap is often used to provide two 120 v supplies as well as a 240 v supply, and that's a split-phase supply. Although 240 v bulbs are universal in some countries like the UK, bulbs are normally made for 110-120 v in USA/Canada.
With no three phase power supply you can't use a three phase motor of any kind at all!
Yes
i don know
A 3-phase 3-wire system provides a single-phase supply between any two wires. On a 3-phase 4-wire system with one line out but the neutral intact, the system is described as a faulty 3-phase system but it would allow a 3-phase motor to start, but not run properly. True 2-phase systems with the voltages in quadrature (90 degrees or one quarter cycle apart) were used in the 19th century but not since then because 3-phase was found to be better.