Negative Power Values
I am seeing all negative values from the WattNode meter I just installed. Does that mean the CTs are installed backwards?
CausesThere are a few different reasons for negative power readings:
Category: WattNode "-" means power is being exported instead of import in case of a import/export dual porpose meter
Because the meter is connected backwards
.93k ohms
When reading the needle on an analog meter, you can get a slightly different reading depending on the position of your eye relative to the needle and the scale behind the needle. This is parallax. The digital meter reads the exact value measured (to the accuracy of the meter), and then displays it in the form of "numbers" or "digits" so your eye is not interpreting the value from a scale.
The meter constant represents the number of pulses will generated per hour nothing but after n number of pulses the meter reading is incremented by one.Read more: What_is_the_meter_constant_of_energy_meterAnswerAn energy meter measures the quantity of energy used by an installation. It does this, by monitoring the supply voltage and the in-phase component of the installation's load current.
Yes. This is usually an indication that either its current coil or its voltage coil has been wired incorrectly.
If you are referring to using a volt meter then you will just get a negative reading on most modern digital meters. If you are using an old analogue meter you may get no reading.
This is important when meter cannot display negative values, e.g. it is analogous meter with scale. Most digital meters can display negative values. P.S. I am amateur in elecrtonics.
Yes!
the number on the digital electric meter after the reading
On a digital multi-meter the black lead connects to the common (COM) port in the meter.
Because the meter is connected backwards
In a DC circuit, just connect your meter across the source or electrical bus. The meter, because it is one of the newer digital ones, will work regardless of which way the leads are connected. If the leads are plugged into the meter correctly, the investigator need only look at the sign associated with the reading on the meter and the position of the leads. If the reading on the meter is "13.6 V" on a DC setting, then the red lead is connected to the positive side or negative rail, and the black to the negative side or negative rail. Conversely, if the reading is "-13.6 V" on a DC setting, the red lead is on the negative side or negative rail, and the black lead is on the positive side or positive rail. The DMM is a wonderful innovation and will allow someone making measurements to not have to worry about which way to connect the leads - as long as that someone pays attention to the sign displayed with the voltage reading.
.93k ohms
I hope it cannot be done, that would be illegal.
It may do this if you have the leads to the meter connected to the wrong ends of the battery.
An analogue meter will deflect the needle the wrong way. A digital meter will show a negative value.
When reading the needle on an analog meter, you can get a slightly different reading depending on the position of your eye relative to the needle and the scale behind the needle. This is parallax. The digital meter reads the exact value measured (to the accuracy of the meter), and then displays it in the form of "numbers" or "digits" so your eye is not interpreting the value from a scale.