MarelliMotori MEC-100 Manuel De L'utilisateur page 92

Power Factor Regulation Stability (see Par. 3.11.3):
❑
Proportional Gain: enter in this field the proportional constant value of the regulation loop.
❑
Integral Gain: enter in this field the integrative constant value of the regulation loop.
5.7.6. Limiters
In Fig. 5.7.6.a the limitation parameters configuration area is shown.
Underfrequency Limiter (see Par. 3.7.1):
❑
Corner frequency (Hz): enter in this field the corner frequency value in the under-frequency voltage limitation curve (40 to
60Hz, with minimum increase of 0.1Hz).
❑
Zero Volt Frequency (Hz): enter in this field the zero Volt frequency value in the under-frequency voltage limitation curve (0
to 40Hz, with minimum increase of 0.1Hz).
Overexcitation Limiter (see Par. 3.7.2):
❑
Maximum Current (A): enter in this field the maximum allowed current level value (0 to 25A, min. increase of 0.1A).
❑
Time Delay (s): enter in this field the minimum operation time value during which the MEC-100 is authorized to supply the
Maximum excitation Current (0 to 600s, with minimum increase of 1s).
❑
Max. Continuative Current (A): enter in this field the maximum continuative current level value (0 to 15A, with minimum
increase of 0.1A).

Enable Limiter: limiter activation flag; click on this button to activate the over-excitation limitation function.

Apply to Relay 1: relay 1 assignment flag; click on this button to assign the limitation intervention signal to relay 1.

Apply to Relay 2: relay 2 assignment flag; click on this button to assign the limitation intervention signal to relay 2.
Underexcitation Limiter (see Par. 3.7.3):
❑
Leading Power at P=0 (%): in this field you will have to enter the maximum leading power value allowed, expressed as a
percentage of the maximum apparent power (0 to 60%, minimum increase 1%) when the active power is null.
❑
Leading Power at P=100 (%): in this field you will have to enter the maximum leading power value allowed, expressed as a
percentage of the maximum apparent power (0 to 60%, minimum increase 1%) when the active power is equal to 100% of
the rated one.
❑
Time Delay (only in Droop): in this field you will have to enter the underexcitation limiter notification time, for the Droop
operating mode only.

Enable Limiter: limiter activation flag; click on this button to activate the under-excitation limitation function.

Apply to Relay 1: relay 1 assignment flag; click on this button to assign the limitation intervention signal to relay 1.

Apply to Relay 2: relay 2 assignment flag; click on this button to assign the limitation intervention signal to relay 2.
5.7.7. Field Protections
In Fig. 5.7.7.a the field protection parameters configuration area is shown.
963857137_M
Fig. 5.7.6.a
Limitation Parameter Area
MEC-100 – Marelli Motori
92