Electrical Engineering

Hot-rolled sheet has low hardness, easy processing, good ductility and cheaper price. Cold rolled sheet has high hardness, relatively difficult to process, but not easy to deformation, higher strength. If you want to buy cold-rolled steel, you can go to the official website of Changzheng, the price of Changzheng's steel is moderate, and it is the choice of the public. Buy cold-rolled steel plate recognized Changzeng.

The fuse box is located under the dashboard on the driver side. Dumb question

Yes it can run when single phasing in a delta configuration but the motor will not start from a dead stop. There will be quite a bit of degradation in its operation from its nameplate data.

Only one reported incident in Lathen Germany in 2006 during a test run where 23 people died. Accident was caused by human error not Maglev technology when a maintenance vehicle was on the track at the same time as the Transrapid train.

Since voltage is electrical potential difference, to measure the voltage across a component, you place the voltmeter across, or in parallel with, the component.

a major advantage of this form of heating is the ability to repadily heat throughout the volume

Yes, they can share a neutral

In North America, you can connect a 240-V load across two lines (not 'phases') of a three-phase system with a 240-V line voltage. In Europe, you would need to connect the load between any one line conductor and the neutral conductor.

Over 5,000 years ago lamps were invented. The Egyptians had oil lamps.

Testing and wiring should be carried out by a qualified , trained technician / engineer so that the electrical devices and wiring are properly done with safety.

The physics of the energy storage. In an inductor, the current must fight against the stored energy in the magnetic field which tries to keep the current unchanged. Any change in the current lags the voltage since the stored energy impacts the adjustment.

Similarly, the "displacement" current in a capacitor leads the electric field buildup in a capacitor, causing the voltage to lag the current until the stored energy building up in the electric field stabilizes. Any change in the voltage is first preceded by a change in the displacement current.

1 mw = 1000 kw

watt = v*a (volt x amp)

1000 watt = 1kw

when a machine or device that consumes 1 kw in order to operate does so during 1 hour - then we say 1kwh or 1kw/h.

there is no conversion from plain MW to KW/H - the time factor in the MW expression is missing.

Hope helps you.

The term, 'negative ground' or 'negative earth' refers to the system of chassis-grounding, or chassis-earthing, used in vehicles. With this system, the negative terminal of the battery is directly connected to the metal parts of a vehicle, while the positive terminal is connected to the various electrical devices (lamps, etc.) using insulated conductors. The vehicle's metal parts ('chassis') then act as the return conductor to the battery.

Variable transformer may also refer as auto transformer. We can vary the output voltage of the transformer. But in the ordinary transformers output voltage is already designed.

Electrical generators have sliding magnets that go back and forth to create mechanical energy in them....and that's why they are related.

It is applied not only for the elements f the network but also for the sourcesssss

To convert from KVA (kilovoltamperes) to KWH (kilowatthours) first convert to KW (kilowatts) by multiplying by power factor. Power factor is the cosine of the phase angle between voltage and current. Then multiply by the number of hours that you run the load.

The term, 'unbalanced system' refers to an unbalanced load. Under normal circumstances, an unbalanced load leads to unbalanced line currents. The line voltages are determined by the supply and remain symmetrical, even when the load is unbalanced. As your question refers to a 'line to neutral' voltage (i.e. a phase voltage), you must be referring to a star (wye) connected load, in which case the phase voltage (line to neutral voltage) is 0.577 (the reciprocal of the square-root of 3) times the line voltage (line to line voltage).

Ohms is the unit of measure and the symbol is Omega which looks a bit like a horseshoe with open end pointing down.

Any homogeneous system part of a system having all physical and chemical properties same throughout.

A piezo-electric material is one who's physical dimensions (size) noticeably change when a current is passed through it. So if an AC (alternating current) is passed through a piezo-electric material, it itself alternates, or oscillates. This type of material is exploited in Electron Microscopes and Atomic Force Microscopes, which is how they are able to get such small, yet precise images.