Electrical Troubleshooting

A load increases the flow of electrical current in a series circuit. No load, no flow.

Megger the body and the earth point. It should be zero

If it has battery cells, ensure you have the good battery cells. The probes should be intact. The knobs should be in order. The device should not have any cracks or broken parts.

Most likely the ground (green) wire is mistakenly connected to hot instead of the hot wire (black) at the breaker panel!

Possibly you meant the neutral wire not the ground wire, in that case most likely the neutral (white) wire is mistakenly connected to hot instead of the hot wire (black) at the breaker panel!

In either case check all three wires in the breaker panel for that circuit to make sure they are all correctly connected! Black is hot, White is neutral, Green (or uninsulated in some cases) is ground.

Check the continuity of the ground wire from both the ends. Ensure the ground wire is properly connected to earth / ground terminals

If the main breaker is with out any fluid or oil then technically it is no problem. However the operator may get confused while using it, particularly during an emergency situation, he might actually put on trying to put off, which might lead to serious problems.

You need to mention the voltage to calculate the wattage

Yes, as long as the bar fridge wattage is less than 650 W

Operating at half the required voltage, the lamp will not operate at full capacity if it comes on at all.

The terminology down stream refers to an electrical circuit and where devices are connected into the circuit.

In reference to the breaker that feeds the circuit everything is down stream from it.

If a GFCI receptacle is added into the circuit as the first device, the GFCI can be wired to allow all of the regular receptacles to be protected down stream from that GFCI.

Every device added to the circuit will be down stream from the one that is ahead of it. The only device that will not have something down stream from it will be the last device in the circuit.

It is a rating that is used to size capacitors in microfarad. MFD is an acronym for the word microfarad.

No, a rotating masonry drill bit adjacent to a cable will not create a magnetic field and no it could not disrupt the electrical current within the cable

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their are many many types of 48 volt systems you need to show or state more info on your system

simple what goes in comes out mains has a % mark of around 10% under or over so that's not un normal to see this info

their are many reasons a compressor can fail (refrigeration)

1 low oil level due to low suction pressures or oil wash out due to liquid flooding back to the compressor 2 wrong supper heat setting on tx valve system3 wrong size compressor for the load 4 under or over voltage5bad starting or running cap or start relay and the list goes on....

According to 2011 nfpa 70 nec Motor conductors are sized with the flc- full load current or the nameplate rating fla- full load amperes

Across the line starter has a large inrush current.

There are three major causes of hot screws on a receptacle.

1.. Overcurrent: Receptacles are usually rated at 15 amps, occasionally 20

amps. If the circuit breaker feeding it is too large or faulty, the receptacle

could overheat due to the loads it is feeding.

2.. Loose screws at the receptacle. This condition leads to arcing at

the receptacle and evetually, fire.

3.. Copper contamination. Carbonization or crystalization can occur on the

conductors at the screw terminal. This can usually be cleaned up with

emery cloth.

"a broken connection or short in the wire between the ABS/TCS control unit and the PCM. "

You can see it on the connection on the inside of the package.

Yes, many large buildings are built with electrical vaults to house the electrical distribution system. The high voltage enters the building usually underground, where it connects to a transformer. The secondary side of the transformer is connected to a distribution system where the supply voltage is then sent to the individual apartment sub panels.

Here are [the only] two: too much Voltage is applied, or there is some short [a reduction in the normal Resistance of the armature] that increases Current and lets the Smoke leak out.

You need to describe symptoms. Check oscillator frequency and power supply.

You can, and you will get a reading if the leakage is within the operating parameters of the megger or there is a dead short in the windings. Most larger voltage motors need higher testing voltages. A hi-pot tester will deliver these higher voltages.