26 ATS115-ATS115Plus User’s Manual
If the ATS115-ATS115
Plus
has been configured correctly, it is possible to measure the
negative-sequence current, the auxiliary current, the neutral current and the differential
current. Consequently, they will be displayed on the right side of the screen, identified by the
following symbols:
I− : negative-sequence current.
Ax : auxiliary current.
An : neutral current.
A∑ : differential current.
The neutral and differential currents are displayed only when the measure is available, or if
the P.0314 parameter (Usage of auxiliary current) has been set to “2 - Neutral”, if the CTs of
the auxiliary current have the same report of the primary and the secondary and if the CTs are
connected to the same line (both on the genset or on the load, or if the load is supplied with
power from the genset).
The auxiliary current is displayed if the parameter P.0314 (Usage of auxiliary current) has been
set to a value different from “0 – Not used”.
The page only exists if the primary and the secondary CTs values for the phase current and
for the auxiliary current are set to a value different from zero (respectively in the parameters
P.0302 – “C.T. Primary Source/Load” and P.0310 – “C.T. Secondary Source/Load” and
P.0311 – “C.T. Primary Auxiliary current” and P.0312 – “C.T. Secondary Auxiliary current”).
This page shows the active powers (kW), the power factors and the loading types on single or
total phases (for single-phase systems, the information related to phases 2 and 3 are replaced
by dashes). At the right bottom corner, the Source (A or B) together with its related icon (genset
or mains) are displayed, in order to indicate which are the powers under consideration (see
note in 5.5.3.7).
The powers, the power factors and the loading types are not measured if the C.T. value is set
to zero in the parameter P.0302 – “C.T. Primary Source/Load”.
This page shows the reactive powers (kvar), the apparent powers (kVA) on single or total
phases (for single-phase systems, the information related to phases 2 and 3 are replaced by
dashes). At the right bottom corner, the Source (A or B) together with its related icon (genset
or mains) are displayed, in order to indicate which are the powers under consideration (see
note in 5.5.3.7).
The powers, the power factors and the loading types are not measured if the C.T. value is set
to zero in the parameter P.0302 – “C.T. Primary Source/Load”.
This page shows the active and reactive power counters (partial and total) and the working
hours (partial and total) counted by the controller relating to the Source A, that is when the
load is connected to the Source A.
The active power is counted only if positive (it is not counted in case of reversed power). The
reactive power is counted in module (the counter goes up both with capacitive and inductive
load).
On this page, you can reset to zero the partial counters individually. To this purpose, it is
necessary to:
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