Tag Archive: AC

Know The Difference Between Switchboards And Switchgear

There are two systems or panels that are used to redistribute power or electric current to other equipment or circuits. One is the switchboard and the other is switchgear.

Electric switchboards are a device that directs the electricity from one source to another. It is composed of an assembly of panels. Each panel contains switches to allow electricity to be redirected.

With a switchboard, a technician is protected from possible electrocution. The switches in the board control the amount of current that goes into the switchboard. Such switches are fed from a generator which has AC frequency and load sharing controls. It also has gauges that show the frequency and synchroscope.

It is important that the amount of electric power that goes into the switchboard is equal to the electric power going. When you take a look inside the switchboard, you will see a bank of busbars.

The busbars, which are generally bare and supported by insulators, are wide strips of copper that connect to switchgear. The busbars act to allow passage of large electric current through the switchboard.

Before the switchboard is opened for maintenance, it is important to isolate the power because the busbars are bare. These active busbars are a deadly source of power. When working on live switchboards, precautionary measures are crucial. Be ready with your protective equipment such as thick rubber mats and gloves, when working with an open switchboard.

Switchboards are isolated and protected with other equipment including substations, motors, high or medium voltage distribution networks and transformers.

Switchgear are also essential a type of electrical distribution device that is used to convert incoming electrical power into several smaller voltages. Switchgear can also be used as a circuit breaker.

There are many different types of circuit breaker switchgear. Vacuum circuit switchgear have minimal arcing. The arc quenches when it is stretched to less the 2 to 3 mm. Theyre frequently used in modern medium-voltage switchgear of up to 35,000 volts.

If you need to de-energizing equipment, you can use switchgear. It also clears faults downstream and comes in varied parameters, which include number of panels, electrical specifications and mounting style.

The common types of switchgear are vacuum circuit breakers, oil insulated switchgear, gas insulated switchgear, and a simple open air circuit breaker. Oil insulated switchgear depend on an oil vaporization blast through its arc.

The gas insulated switchgear stretches the arc with a magnetic field and also depends on the dielectric strength of the gas to quench the stretched arc. The open air switchgear circuit breakers use compressed air to blow out the arc. The displaced air that tries to escape thus blows out the arc.

Circuit breakers are a unique type of switchboards that interrupts fault currents. Their design is especially made for interruption of fault currents.

The Classifications of switchboards are based on the current rating, the amount of interrupting rating, by voltage class, insulating medium, construction types, operating method, type of current, interrupting type, and application.

Honda Eu3000is Power Generator

The Honda EU300IS generator is the most popular generator on the market for several reasons,it is very quiet for a generator that puts out 3000 watts (49 to 58db),most of the generators its size are loud and sound like a big construction project is underway rattling like crazy. This generator is much different you can actually speak and carry on a conversation in a normal tone of voice when standing fight next to it,honda has employed what is called a 2 tier damper muffler coupled with a eco throttle that ensures the most quiet opperation and that makes this a excellent choice of a generator if you tailgate at ballgames or go camping where people are trying to relax instead of trying to talk over the noisy generator which can be anoying as hell.

Using the eu300is is so easy because it has an electric start,just turn the switch and she starts up without any trouble,of course you have to maintain this piece of equipment just as if it was any other type of motorized equipment such as changing the oil at intervals of time ,also changing or cleaning the air filter,these important things will insure that you generator last a long time. Before shutting your generator off for a length of time you need to shut the fuel flow off and let the carburetor run dry of gas because when gas gets old it will gum up your carb and cause major problems resulting in having to remove the carb and cleaning it. Another thing to consider is the gas in this day and time is very poor and has ethanol in it ,ethanol is corrosive and causes problems when it ages making the fuel unstable,it will not burn as it should so always add fresh gas to your tank if it has been sitting for very long.

If your looking to save some fuel and keep the operation cost at a minimum the eu3000is is the excellent choice,it will get up to 20hrs use per tank of fuel,if you use a lot of power it will be lower but a normal load will run it for 20hrs and that is very reasonable for a 3000 watt generator. There are tri fuel kits available so LP or Natural gas can be used which is even better ,these gasses have very little pollutant emissions and will actually make you generator last longer. You see gasoline has a lot of carbon byproduct that builds up in the oil which makes your oil dirty and black also causes carbon buildup on the piston and valves,LP and Natural gas have no carbon emissions or buildup and will make your generator run extremely clean,you can run it for hundreds of hrs and the oil will not get black however it is still adviseable to change the oil at times because there are metal filings that are small and get filtered out.

Honda thinks ahead of the other generator manufactures with innovations that set standards others would like to follow,the eu3000is is dynamic in ways other generators cant match. Honda makes parallel cable kits that you can hook 2 of the same generator types together,linking 2 eu300is together will put out 6000 watts and that’s a bunch of power,sure it will double the fuel consumption but also double the power. This generator has a reliability record that is unsurpassed just like all honda products it will last and last if taken care of properly. An inverter is built into this package which means you can have AC or DC power,DC power is great to do such things as charge up a battery. If you want to use the eu300is for emergency or standby power it is suggested to use a transfer switch that will assure there is a safe connection to the home so it won accidentally electrify external power wires and cause a fire or injury.