100 6LE008146B
Measurement functions
6.13 Measurement parameters
ENVA setting: taking neutral potential into account
Enables measurement of voltages between phase and neutral V1N, V2N, V3N as well as the
powers per phase.
On 4-pole circuit breakers this parameter is ON and cannot be changed. On 3-pole circuit
breakers, this parameter must be activated to enable measurement of the voltages between
phase and neutral V1N, V2N, V3N as well as the powers per phase, if the terminal vN is linked
to the neutral potential.
ENVA On or O
ENCT setting
Allows the neutral current measurement to be taken into account.
On 4-pole circuit breakers this parameter is ON and cannot be changed. On 3-pole circuit
breakers equipped with the ENCT sensor, this parameter must be activated to allow correct
operation of the earth fault protection and to obtain measured values of voltages between
phase and neutral V1N, V2N, V3N and current IN.
ENCT On or O
Measurement parameters must be configured in order to obtain correct measurements that
fulfil the requirements of the electrical installation.
These parameters are accessible from the CONFIGURATION MEASURES of the sentinel
Energy display, the panel display or the Hager Power setup software.
ENVA On or O; cannot be deactivated on 4-pole; On by default for 3-pole
ENCT On or O; cannot be deactivated on 4-pole; O by default for 3-pole
Phase seq. Defining the sequence of the connected electrical phases 1,2,3 or 1,3,2
Calculation
Defining the calculation convention of Qtot, Stot, Eap, ErOut, ErIn, PFtot and phitot.
Arithmetic or Vector
Interval 1 to 60 min in increments of 1 min
DEM. MODE Definition of the type of integration of averaged values. Sliding, Sync. Bus or Fixed
PF sign Defining the sign convention of the power factor. IEEE or IEC
Tari O or On
IMPORTANT
With a 3-pole circuit breaker installed in a earth fault protection system where the neutral is
distributed, the vN terminal must be connected to the neutral potential and this parameter
must be activated, otherwise the measurement values of the voltages between phase and
neutral V1N, V2N, V3N of the powers per phase will be erroneous. Similarly, non-activation
of this parameter will prevent correct operation of the reverse active power, undervoltage
and overvoltage advanced protection.
To Next Page
Loading...
Need help?
General
