Manual

Chapter 5 Configuring the EM920
Configuring the EN50160 Recorders
126 EM920 Power Quality and Revenue Meter
Option Range Default Description
Rapid Voltage Changes
Repetition Rate 1-10 1 Defines the maximum repetition rate in
variations per hour (equal or less than)
for rapid voltage changes. Voltage
changes at higher rates are not classified
since they will be subject for flicker.
Flicker
Pst Period 1-10 min 10 min Defines the period of time for the short-
term flicker evaluation. The standard
setting of 10 minutes can be temporarily
changed in the device for testing
purposes.
Harmonic Voltage
THD, up to order 25-50 40 Defines the highest harmonic order
included in the THD evaluation.
Harmonics, up to
order
25-50 25 Defines the highest harmonic order for
evaluation of the harmonic voltages.
Interharmonic Voltage
Evaluation Disabled, Enabled Disabled Enables the evaluation of the
interharmonic voltages
THD, up to order 25-50 40 Defines the highest interharmonic order
included in the THD evaluation.
Interharmonics, up
to order
25-50 25 Defines the highest harmonic order for
evaluation of the interharmonic voltages.
Mains Signaling Voltage
Evaluation Disabled, Enabled Disabled Enables the evaluation of the mains
signaling voltages
1st Signaling
Frequency
110-3000 Hz 183.0 Hz Specifies the mains signaling frequency
for the compliance evaluation
2nd Signaling
Frequency
110-3000 Hz 191.0 Hz Specifies the mains signaling frequency
for the compliance evaluation
3rd Signaling
Frequency
110-3000 Hz 217.0 Hz Specifies the mains signaling frequency
for the compliance evaluation
4th Signaling
Frequency
110-3000 Hz 317.0 Hz Specifies the mains signaling frequency
for the compliance evaluation
Transient Overvoltage
Detection and
Classification Method
Peak voltage
Impulsive voltage
Peak voltage Defines the method for detecting and
classifying transient overvoltages:
Peak voltage – transient overvoltages are
classified by the peak voltage;
Impulsive voltage - transient overvoltages
are classified by the impulse amplitude.
Clearing EN50160 Evaluation Counters
See Reset of Accumulators and Log Files in Chapter 6 on how
to clear the present contents of the EN50160 evaluation
counters before starting your EN50160 evaluation.