GU_TRIDENT_V_1_20_EN
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Characteristics of the network to be measured :
C O N F I G . P R O G R A M 2 / 4
T V : 2 0 0 0 0 / 1 0 0 . 0 V
C T : 1 0 0 0 A 1 . 0 V
S i m p l e V n = 1 5 0 0 0 . 0 V
H TRIDENT measures directly on the network or via voltage transformers (VT) and current
transformers (TC)
Voltages :
TRIDENT can measure up to 440 VS between phases and between phase and neutral. To
configure the TPs it is necessary to enter or validate values of the primary and the secondary.
The primary can be between 1 and 99999V (no decimal).
The secondary can be between 1 and 999,9V.
NOTE : the transformation ratio is not needed for the earth/neutral voltage.
Currents :
TRIDENT H /I accepts only current clamps with current ouput. It can measure directly up to
6A per phase. To configure the TCs it is necessary to enter or validate values of the primary
and the secondary.
The primary of the TCs can be between 1 and 9999A.
The secondary is 1 or 5A.
TRIDENT H /I is calibrated to measure from 5A inputs. If 1A is chosen, the measurement
precision will be slightly inferior.
TRIDENT H /V accepts only current clamps with voltage output. It can measure directly up
to 5V per phase. To configure the TCs it is necessary to enter or validate values of the
primary and the secondary.
The primary of the TCS can be between 1 and 9999A.
TRIDENT H /V is calibrated to measure from 5V inputs. If a lower value is chosen, the
measurement precision will be slightly inferior.
TRIDENT measures in different modes according to the network selection:
simple
(simple voltages) : TRIDENT gives the values of the voltages between phase and
neutral and performs all the event calculations as a function of these values. In the
absence of a neutral, an internal neutral is created by a high impedance resistive bridge.
line
(line voltages) : TRIDENT gives the value of the true voltages between phases U12,
U23, U31 and carries out all the event calculations as a function of these values.
Nominal voltage :
This is the nominal voltage for the primary. Its value can be between 50V and 99999,9V and
must be expressed as the voltage between phase and neutral, Vn if simple is selected, and Un if
line voltage is selected.
This value is important because it is the reference for all out-of-limits thresholds.
Note: if the real value is different to the theoretical nominal voltage, it is best to enter the real
value after having consulted the values measured by TRIDENT since its installation.
