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Which is the most common encapsulation in use on BRI Interface?
Which is the most common encapsulation in use on BRI Interface ? A. SDLC B. ATN C. HDLC D. PPP
Why is power generated only on 1 or 3-phase not any other?
Most electricity for the power grid is generated as 3-phase because this can be most economically sent long distances on high voltage power transmission lines. While the additional wire and equipment is more expensive than 1-phase, resistive losses are minimized by using high voltage and radiative losses are minimized because the different phases partially cancel each other. Most power transmission lines use 3-phase-delta as it requires no separate return/neutral line (as required by 3-phase-wye, 2-phase, and 1-phase) thus saving some money on these very long lines. Using more than 3 phases would be uneconomical as the costs for additional wire, insulators, poles in switches, transformers, and other equipment would increase without any additional savings beyond the use of 3-phase. By use of transformers the electricity generated, transmitted, and distributed as 3-phase can be converted to whatever must be delivered to the customer according to their needs: 3-phase-delta, 3-phase-wye, 2-phase, or 1-phase. Most industries have 3-phase delivered as either delta or wye because large motors start and run easier and more efficiently on 3-phase than on 2-phase or 1-phase. Also if the industry needs DC, 3-phase is easier to rectify (using a 3-phase bridge rectifier) and filter to get DC with less ripple than using 2-phase or 1-phase. Most homes have 2-phase delivered and use both phases for appliances, and one or the other phase for devices needing only 1-phase power. Most small generators/alternators generate only 1-phase to keep them simpler and less expensive.
Why is important for three phase supply voltage to be in-phase?
The phase voltages (i.e. line-to-neutral in a 4-wire system, or line-to-line in a 3-wire system) of a three-phase system are displaced from each other by 120 electrical degrees. Each phase voltage, in fact, is rarely in phase with its phase current, as the phase-angle (the angle by which a phase current lags or leads its phase voltage) is determined by the load not by the supply.In general, most loads are resistive-inductive so the phase current usually lags the phase current.So, to answer your question, it's not important that a phase current is in phase with its phase voltage -if that is what you are asking.
What is the difference between a single phase compressor and a 3 phase compressor?
One uses single phase AC current (120/240), the other uses 3 phase AC current (most households will not have 3 phase in their home) One uses a 3 phase motor the other a single phase motor. 3 phase is usually used in industrial applications while single phase is used in home or small business apps.
Can a 380volt's 3 phase motor can be converted to 230volt's three phase motor?
Only if you want to damage it. "277" Volt 3-phase will usually mean 277 from each phase to neutral, and 480 from phase to phase. By "230 3-phase", you likely mean 120 phase-to-neutral, and 208 phase-to-phase. If you really mean 230, then you are probably NOT talking about a three phase motor.
What is usually the most expensive part of a state's budget?
payroll
What is usually the most expensive part of the states budget?
education
Most expensive food item in the menu?
The entree usually, though some deserts can be very expensive.
What types of antique clocks are the most expensive?
Usually grandfather clocks are the most expensive kind of antique clocks and can cost over $500,000.
What is the most costly military vehicle?
Usually, the most expensive military are air craft and battleships. Most expensive aircraft: B2 Spirit Bomber. $2.2B Most expensive battleship (aircraft carriers): USS Nimitz. $4.5B.
Are Audi's expensive to insure?
In most cases yes. They are usually high performance first of all, and they are really expensive to fix.
Is The microprocessor the most important component of a computer and usually the most expensive single component?
Yes the CPU (aka microprocessor or Central Processing Unit) is the most important, but it is not necessarily the most expensive.
How can you quickly get crafting experience on RuneScape?
I found cutting gems very fast. It is also fairly expensive, but this is common in RuneScape: the fastest methods to gain experience are usually also the most expensive.I found cutting gems very fast. It is also fairly expensive, but this is common in RuneScape: the fastest methods to gain experience are usually also the most expensive.I found cutting gems very fast. It is also fairly expensive, but this is common in RuneScape: the fastest methods to gain experience are usually also the most expensive.I found cutting gems very fast. It is also fairly expensive, but this is common in RuneScape: the fastest methods to gain experience are usually also the most expensive.
Does a pit bull male or female cost more?
females are usually the most expensive
What phase of electric box do you put in an residential home?
In a residential home, you typically install a single-phase electrical box. Single-phase power provides one 120-volt hot wire and one neutral wire. This configuration is sufficient for most residential electrical needs.
What is the most expensive appliance to purchase for a new home?
Usually the most expensive appliance for a new home would be between the refrigerator or the washer and dryer combination. Those can generally cost over $1,000 if you get an expensive brand or style.
How expensive are the most common swimming pool fountains?
Not very expensive and they can add to the appearance oif your pool. They are under $100 usually, and can go up from there.
