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Electrical Troubleshooting

Electrical troubleshooting involves checking and resolving an electrical problem (such as when an electrical device stops working correctly). Common troubleshooting practices include checking if the power is on, the bulb has burnt out, or the breaker tripped.

885 Questions

Which value capacitors is more effective as a filter element the larger or smaller and explain why?

In filtering applications, larger value capacitors are generally more effective because they can store more charge and thus provide better smoothing of voltage fluctuations. They have a lower equivalent series resistance (ESR) and can filter out lower frequency noise more effectively. Smaller capacitors, while useful for high-frequency filtering, are less effective in stabilizing the voltage at lower frequencies due to their limited charge storage capacity. Therefore, for general filtering purposes, larger capacitors are preferred.

When using the remote for a Hunter fanlight the light will turn on-off using the remote-but will not turn on using wall switch?

Using the remote is like having two switches in series. Both switches have to be on at the same time. Do not use the remote to turn off the fan when you want to turn the fan off with the wall switch.

Can DC solar panels be located 100' from a house?

Yes, unless your local electrical code or zoning ordinances prohibit it. Check with your local building officials to be sure.

However, longer wiring runs result in larger voltage drop, and wasted energy. In order to avoid this you must increase the size of the wiring, which increases the cost of the installation. It may not be cost effective depending on the size of your installation.

What is ac1 and ac3 contactor?

AC-1This applies to all AC devices (Resistive loads) with a power factor of at least power factor of 0.95

AC-3

This applies to AC Inductive loads. Like squirrel cage motors.

What will happen if 2 phase load is connected to generator?

There is no such thing as a two phase load any more. Any two legs from a three phase system are classed as single phase. If this single phase load is connected across the generator it will induce an imbalance in the output voltages of the generator. This is one reason that single phase loads on a three phase generator should be shifted around to find the best possible balance.

Where can you find service manual for Thermal Zone TZPA-3422-A757 ie thermostat wiring condenser?

There are many sites on the internet where you can search for manuals for different types of equipment.

What are the problems associated with electric woks?

Electric woks usually do not get hot enough to fully cook the food, and also it is very common for the food to stick rather badly after the cooking process is finished.

What does ctsy-clk mean on fuse box?

It is a circuit fuse in a vehicle. The fuse is used to protect the courtesy/clock circuit.

Where do you set the dial when you are measuring resistance on house current?

YOU DO NOT "measure resistance on house current".

You never measure resistance of anything that has any path to any source of

power ... not to a wall outlet, a battery, a windmill, a solar panel, etc. You only

measure resistance when all power is REMOVED from the circuit or component

you're measuring. Then, the range you choose for the ohmmeter depends on

the component or circuit you're measuring, NOT on how it's powered when it's

turned on.

What must be checked when inspecting isolator enclosure?

When installing an isolator switch enclosure, make sure that the terminations are tight and secure.If you are using the isolation switch to disconnect a load that must be worked on the following should be checked. Make sure that the handle of the switch is down and locked in the off position. For isolation switches that have windows in the front of them look and make sure that the switch blades are physically in the open position. Then lock the switch in the off position. Always safety first.

What is the purpose of a tone generator and tone probe?

They are used to trace wiring. There may be multiple conductors in a bundle that are unmarked, or perhaps unmarked wires that go to different locations. The tone generator is connected to a pair of conductors (or one conductor and ground), and the probe is used to find the same conductor on the opposite end. The probe is used to look for the conductor that is carrying the tone.

In a bundle of conductors, or several conductors in a raceway, the tone may be induced, or "bleed" into other conductors. In this case, the desired wire has the strongest tone. Connecting the generator to one conductor and ground tends to induce the signal into other conductors. Toning a pair, with neither one grounded, is the most selective, making identification more sure.

How you check the stability of the cable feeder?

To make sure that a feeder cable is secure it must be supported. The support distance is stated in the electrical code book. The code also gives support of cable trays, conduit and all the different ways to support cables.

Have a alternator that is 6 inch across and 4 inch back to front no information on alt what is its voltage and amperage?

Look very closely for a serial number stamped on the unit. The suggested course of action is to take the alternator to an auto parts store to see if they can recognize what vehicle the alternator should belong to. Automotive alternators are three phase and should have a full wave diode bridge concealed within the alternator housing. If you open the alternator case, the diode bridge will have diode numbers or a number stamped on the bridge network. Cross referencing this number to other diode bridges will tell you what amperage the alternator should be able to output. If you find a number there let the automotive parts store see if they can find a substitute for it.

How does a 240 volt hot water heater thermostat test for normal operation?

As with any thermostat it is based on where the set point is on the temperature scale. On hot water tanks the thermostat opens the element circuit when the set point temperature is reached. For example the set point should be around 135 degrees F. When cold water enters the tank, the thermostat closes due to sensing a temperature lower than the set point is set at. When the water heats up to 135 degrees the thermostat open because the set point is reached.

To test the thermostat shut the power off at the distribution panel for the hot water tank. To do this test the water in the tank should be up to temperature. Remove the wires from the thermostat that is to be tested. Make a diagram of how the wires were connected. Using a continuity tester (ohm meter works fine) place the leads across the terminals where the wires were connected. If there is no reading then the set point is satisfied and the circuit is open. Leaving the tester leads on the terminals, with a screw driver raise the set point to a higher value. The meter should now show continuity between the terminals. Turn the set point down and the terminal reading should open. If this is happening then that thermostat is operating fine. Reposition the thermostat to the original set point. If you are working on the top thermostat now do the same to the bottom thermostat to see if it is working also.

See related link below.

Where is the reset button on the belkin surge protector BG108000ce2M?

The reset is part of the resettable circuit breaker. It is located just below the "not grounded" light that indicates when a ground is not present

What will be the effect if you were using different brand outlet and lighting fixture instead?

As long as the outlet and the fixture are compatible in voltage, amperage and pin configuration, there should be no problem using them together.

Which standard covers the cable sequence in cable trench?

The CEC and NEC both cover this in the electrical code of the particular country.

How do you reduce the noise in electrical circuits?

Depending on the circuit, typically a combination of a coil (commonly called a choke) and a capacitor can be put in circuit at multiple places to significantly reduce noise in a circuit.

What is the number of a megger test to shoot for?

A good number on a megger test should be around 2 megohms.

What are the causes of fire on MCB?

loose screws or corroded cables or over current above breakers rating (faulty breaker not tripping when meant to) internal fault with breaker.

What is recoil the heating element for cooking appliance?

FWIW: Here is one answer I learned working with my father in appliance repair.

In older stoves (and probably newer ones) , baking ovens and such, the heating elements at the time consisted of long coiled pieces of nichrome wire that resembled a stretched door spring. These wires were fed through round ceramic doughnut hole type insulator holders mounted on a metal frame. When these elements burned out the element wire would be removed and you could purchase a new one, stretch it out, feed it through all the insulators and terminate the ends to the electrical connector. This was referred to as "Recoiling an element"

Later on preformed metal rode type elements were designed and are primarily used today.

What is meggameter?

I've never heard of a meggameter. However, since the question is under the heading of Electrical Troubleshooting, I'm assuming that you are referring to a megohmmeter.

A megohmmeter is a testing device that measures the resistance of insulators and insulation of electrical conductors. Since their resistance is generally very high, this device uses a voltage between 500 and 2000 volts at a fixed current.

This combination can detect minute pinhole leaks in conductors that are not visible to the human eye. These pinhole leaks can cause arcing and eventually an electrical short.

How do you find out why a fuse keeps blowing out?

First check what's actually serviced by that fuse, maybe you've added something that wasn't there from the beginning, pushing the draw over the allowable limit.

If that still looks OK, start by disconnecting the stuff hooked up to that fuse one by one, see if that can narrow things down.

If that doesn't show anything, then you have to start inspecting the wiring itself for damages.