Pomiar energii elektrycznej
Specifications |
QE81WH4W |
QE83WH4W |
|
---|---|---|---|
Measuring circuit |
phase wire system |
3-phase (4-wire) |
3-phase (4-wire) |
rated voltage |
110 V AC, 480 V AC (When an optional external instrument transformer is used, voltages from 440 V to 6600 V can be measured.) |
110 V AC, 480 V AC (When an optional external instrument transformer is used, voltages from 440 V to 6600 V can be measured.) |
|
rated current |
5 A, 50 A, 100 A, 250 A, 400 A, 600 A (Using an optional external current transformer, currents up tp 6000 A can be measured.) |
5 A, 50 A, 100 A, 250 A, 400 A, 600 A (Using an optional external current transformer, currents up tp 6000 A can be measured.) |
|
no. of circuits |
1 |
3 |
|
Measured items |
Current, voltage, frequency, current demand*, active power, active power demand*, power factor, active energy (consumption, regenerative), reactive energy, energy consumption over a specified time period |
Current, voltage, frequency, current demand*, active power, active power demand*, power factor, active energy (consumption, regenerative), reactive energy, energy consumption over a specified time period |
|
Accuracy |
current, voltage, power |
±1.0 % |
±1.0 % |
power factor |
±3.0 % |
±3.0 % |
|
active energy |
±2 % (within 5 to 100% of rated range, power factor = 1) |
±2 % (within 5 to 100% of rated range, power factor = 1) |
|
Buffer memory data update rate |
250 ms |
250 ms |
|
Power failure compensation |
Settings and measured items are backed up in a non-volatile memory |
Settings and measured items are backed up in a non-volatile memory |
|
I/O points |
16 |
16 |
|
Dimensions (WxHxD) mm |
27.4x98x90 |
27.4x98x90 |
|
Order information Art. no. |
259456 |
259457 |
* “Demand” is the average movement within the specified time period.