hager hw+ User Manual

956LE008146B
Measurement functions
6.10 Analysis of individual harmonics
The presence of several non-linear loads on an electrical network generates harmonic
currents.
Non-linear loads distort the current and voltage waves, degrading the quality of the energy
distributed.
If the distortions are large, they can result in:
- disruption to or degraded operation of powered devices,
- unwanted heating of devices and conductors,
- overconsumption.
These various eects increase the installation and operating costs of the system. It is therefore
necessary to monitor the quality of the energy distributed.
The sentinel Energy trip unit allows real-time monitoring of every voltage and current harmonic
up to the 40th order.
The availability of the individual harmonic voltage and current values depends on the type of
optional rating plug installed (see 2.1 General description).
The values of the individual harmonics are displayed graphically in the Hager Power touch
application.
They are also available on the Modbus communication.
Accuracy of measurement
Variable Measuring
range
Accuracy
Fundamental harmonic of currents on phase 1
Fundamental harmonic of currents on phase 2
Fundamental harmonic of currents on phase 3
0.2 x Ib... Imax 0.5 %
Harmonics 1 to 40 of currents on phase 1
Harmonics 1 to 40 of currents on phase 2
Harmonics 1 to 40 of currents on phase 3
0% -
655.35%
5 %
Fundamental harmonic of voltages between phase and neutral V1N
Fundamental harmonic of voltages between phase and neutral V2N
Fundamental harmonic of voltages between phase and neutral V3N
70 V - 440 V 0.5 %
Harmonics 1 to 40 of voltages between phase and neutral V1N
Harmonics 1 to 40 of voltages between phase and neutral V2N
Harmonics 1 to 40 of voltages between phase and neutral V3N
0% -
655.35%
5 %
Fundamental harmonic of voltages between phases U12
Fundamental harmonic of voltages between phases U23
Fundamental harmonic of voltages between phases U31
120 V - 690 V 0.5 %
Harmonics 1 to 40 of voltages between phases U12
Harmonics 1 to 40 of voltages between phases U23
Harmonics 1 to 40 of voltages between phases U31
0% -
655.35%
5 %

hager hw+ Specifications

General

Brand	hager
Model	hw+
Category	Circuit breakers
Language	English