Electrical Engineering

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sirs if you could explain me detail about the staircase lighting ckt diagram & explain how does the switch function.

Uninterruptible Power Supplies (UPSs) can be configured in parallel mode by connecting the output terminals of both UPSs. The capacity and all technical specifications and feautures of the UPS should match with another UPS. The UPS manufacturers ensure the synchronization of all UPSs connected in parallel using bus connectors that serve as frequency, phase, voltage, and current monitoring to maintain the stability of the systems.

It can be paralleled more than 2 units which is usually up to 8 units depending on the manufacturer's specification. Before switching on the UPS make sure that all the parameter settings are all the same for the rest of units to be paralleled. If all units are now running, if one UPS fails the protected load should not be affected since there are still some units that can be able to support the entire loads.

This will depend on the motor. You should ask the manufacturer.

Some do.....

as far i think,there is no current flowing between two fully charged capacitor.current flow in a capacitor happens until it gets fully charged.if it is fully charged then there is no lack of potential,so no current flow.

Bolivia uses the same as electricity service standards as countries in Europe: 230 volts 50 Hz single phase alternating current. Home appliances are fitted with Europlugs Types A and C.

All electrical equipment, regardless of the voltage, should have a voltage supply that is no more than plus or minus 5 per cent of the equipments stated voltage requirement.

50V

A light bulb connected between to wires, each having 300 volts to ground that are in phase, will not light, because there is no differential voltage available to do any work. If each wire has 300 volts to ground and are out of phase (600 volts between them) the light bulb will be lit, if it is rated at least for 600 volts, otherwise it will burn out.

20,000 watts

The current flowing through an electric circuit when you flick the switch on or off.

Shaft(rotor) of DC motor and Alternator(AC Generator) are alligned axially and radially to each other and connected.

The ability of any component part to radiate heat depends partly on the materials it is made from and mainly on its surface area. So, as large-sized resistors have a much bigger surface area than small ones, the power rating of a resistor is made according to the power (Watts) it has been designed to dissipate safely without overheating.

What will happen pretty much instantaneously is that the bird will be electrically coupled to the wire, but will not really be a significant part of the circuit as far as conduction. The current is flowing through the wire. It won't want to go up the bird's leg, through its body and down the other leg because there really isn't a lot of electrical advantage to that. Current just runs along through the relatively low resistance path of the wire. The bird has provided a parallel path for current flow to be sure, but it isn't a low resistance one, and it's in parallel with the low resistance path of the wire. A few dozen or a few hundred (or some other small number) electrons per unit time will pass through the bird, but the bird won't notice because the current is so tiny. The current will pretty much begin instantaneously, as was asked, but it's minute. An ampere is a coulomb per second or 6.24 x 1018 electrons per second. A few thousand electrons per second going through the bird is far less than microcurrent. Our birdie won't notice and will be unaffected. Birds land on high voltage lines all the time and fly off with no ill effects. It's when birds fool around on top of power poles near the wires and the insulators that they have a chance to become part of a circuit around the insulator to ground. That's when trouble can come calling.

The locomotive was important because it was a way that goods could be moved quickly and cheaply from one area to another. It increased trade possibilities while reducing prices, and allowed farmers and tradespeople to settle further out from cities than ever before.

Your AC electrical service's voltage and frequency, and the types of plugs and sockets you can use, depend on the place where you live in the world.

If you want more detailed information please see the Related Link and some Related Questions shown below.

The maximum temperature in Class F insulation is 150* C.

hey i have mint pics step by step how to do it my e mail is pmeigeljr@yahoo.com

Low insulation resistance causes power loss in that system. That's a direct loss. If you're paying for something like gasoline and it's leaking out the hose you use to get it into your vehicle, you don't get all you pay for. And then there's the distinct possibility that damage to the distribution system can result and further degradation of the conductor/insulator bundles can occur. The second thing could be a killer. There's always the possibility of a fire. That'd be bad.

It depends. The 2A current, did you measure that while the soldering iron was on? Or is it rated at 2A current consumption on the device itself (on the powercable or the stem of the soldering iron). Generaly speaking you can calculted the real power consumption by using P=V*I (thus 2A*24V = 48W). But do remeber that this power consumption is in the steady state, that is, after its switch on and all transient effects have died down. To be safe allow for 3A-4A switching currents that occurs at power on.

The typical test equipment for this is a megger. The megger is connected to two conductors at a time to test the insulation between the two.

To my knowledge, Melde's Experiment is to do with standing waves in wires under tension. Accordingly, perhaps you should explain exactly what you are referring to?