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How can you establish a short circuit problem?
The most common indicator that the circuit is not complete is when the
circuit breaker trips.
short circuit is an electrical circuit in a device that permits current
to flow along an intended path with minimal or no electrical impedance.
Usually, it is a result of excessive current following through the
use the term short circuit to speak of a state where a hot wire that
carries live current comes into contact with a neutral wire. When this
occurs, resistance lowers immediately and a high capacity of current
streams through an unlikely path. A ground fault is a short circuit that
happens when a hot wire transmitting current corrodes with some
grounded portions of any given system.
Measuring resistance of a short circuit using an analog multimeter
Resistance is usually the testing of opposition to electric current. The steps to follow are as follows:
Locate the short circuit. It may either be in the wall wiring or the circuit breaker.
the probes into the multimeters ports. Usually, the multimeter will
have separate ports for the test. Plugin the probes in the right ports.
They can be labeled COM, and in others, you could find the ohms sign.
the required range. It is necessary to select range in an analog
multimeter to obtain the best readings. Usually, the switch shows the
maximum readings for resistance.
Reset your multimeter to zero readings. Short circuit the circuit by placing the probes together.
Read the measurement on your multimeter.
off the multimeter. It is advisable to switch off the multimeter
function switch to a higher voltage range once the resistance
measurement is complete.
Measuring resistance using a digital multimeter
a digital multimeter is easy and fast, as there is no zeroing as in an
analog multimeter. Here are the steps to follow in measuring resistance
using a digital multimeter:
Position the switch to read the maximum reading
Plugin the probes in the required ports. The multimeter has several ports, which might be labeled as COM or with the ohms sign.
You can now switch on the multimeter.
is to select the range. This is to aid you in obtaining the best
reading. Choose a range where the estimated resistance value is below,
but close the highest range
Take the measurement. Apply the probes to the wires that are under test. If necessary, the range can be changed.
off the multimeter, to save energy. It is advisable to rotate the
function switch higher voltage range before switching off.
Insert the probes into the voltage sockets on the multimeter.
Switch on the multimeter to measure current.
Enhance the range to get the most accurate reading. Adjust the multimeter to the highest deflection.
Return the probes into the voltage measurement ports. Turn the range to the highest voltage point before switching off
Measuring current using a digital multimeter
Turn on the multimeter.
Insert the probes into the correct connection. In this case, use the resistance sockets.
the multimeter switch to measure current. Ensure the highest range goes
above the anticipated reading. Avoid overloading the meter by selecting
a range that is too high.
Note down the readings on the multimeter.
Switch off the multimeter to save power.
Note that on measuring, the current power should be on.
Measuring voltage using an analog multimeter
Plugin the probes into the negative and positive ports of the multimeter.
Set the range to put up with the highest anticipated value that allows a little more as harm could occur due to high voltage.
Ensure that the red lead is pointing the live lead.
Probe the maximum voltage point with the live lead probe.
to achieve the positive rebound of the multimeter. To obtain the most
accurate readings, adjust the multi-user range switch to minimize the
range until the highest deflection is read on the multimeter.
Note down the readings
Make the next measurement or unplug the probes when done with the test.
Measuring voltage using a digital multimeter
Plugin the probes into the resistance ports on the multimeter.
Switch on the multimeter.
Set the meter range to accommodate the highest expected value.
First, probe the low voltage points.
Probe the higher voltage points.
If necessary, adjust the range switch to obtain the best readings.
Note down the readings.
Do the next reading or turn off the meter if done.
The significant difference between the two multimeters how they display their readings. The digital multimeter displays its readings in digits mostly on LED or LCD screens. The digital multimeter is also easy to use. Hopefully, this article will be of help to you as it has explained what to measure in a short circuit using an analog or a digital multimeter.