System Monitoring; System Status - MarelliMotori MEC-100 Manual De Instrucciones

5.8. SYSTEM MONITORING

The MEC-100 allows to display on a real-time basis the value taken by the main electrical system parameters and the status of
inputs and outputs. The section of the MEC-100 Interface System dedicated to the system monitoring is that identified by the
label 1, as shown in Figure 5.3.2.a. It consists of six monitoring areas, which are described here below.
5.8.1. Electrical System Parameters
In Fig. 5.8.1.a the system parameters monitoring area is shown.
It allows to measure in real time:

The three phase-to-phase voltages.

The current in the sensed phase.

The generator electrical frequency.

Excitation current and voltage.

Network frequency and voltage.

Real, reactive and apparent powers.

The power factor.

The internal MEC-100 bus voltage.

Analogue Auxiliary Input 1 current value (mA).

Analogue Auxiliary Input 2 current value (mA).

Excitation Current Ripple (%).
In the last column the units of measurement of the measured electrical
parameters are defined.

5.8.2. System Status

In Fig. 5.8.2.a the system status monitoring area is shown.
It allows to display in real time:

Voltage Matching.

Reactive Droop Compensation.

Parallel with Line.

Field Current Regulation FCR.

Operating Status.
In the last column, each one of the illuminated LEDs identifies the relevant
active function (see the description of contacts in Par. 3.5).
5.8.3. Alarm Status
In Fig. 5.8.3.a the alarm status monitoring area is shown.
It allows to display in real time:
 Limiter status.
 Protection status.
In the last column, each one of the illuminated LEDs identifies the relevant
active alarm. Together with the LED, also the relative description of the
alarm is flashing red.
5.8.4. Phase Graphical Display
In Fig. 5.8.4.a an image of the graphical display relative to the angle
deviation between generator voltage and current is shown.
Moreover it allows to display the numerical values of:

Phase (Degrees).
 Sin φ.
 Cos φ.
963857137_G
Fig. 5.8.1.a
System parameter monitoring
Fig. 5.8.2.a
System status monitoring
Fig. 5.8.3.a
Alarm status monitoring
Fig. 5.8.4.a
Phase Graphical Display
MEC-100
95