MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 13 05/03/30
25
Thomson Technology
4.4.2. GENERATOR AC VOLTAGE/FREQUENCY/CURRENT
4.4.2.1.
GENERATOR UNDERVOLTAGE
The MEC 20 controller provides a 3-phase undervoltage sensor for the
generator supply. The undervoltage sensor is programmable for type of
fault action (i.e. alarm or shutdown), pickup and dropout voltage setpoints
(i.e. adjustable hysteresis) and transient time delay settings. Refer to the
programming instructions for further information.
4.4.2.2.
GENERATOR OVERVOLTAGE
The MEC 20 controller provides a 3-phase overvoltage sensor for the
generator supply. The overvoltage sensor is programmable for type of
fault action (i.e. alarm or shutdown), pickup and dropout voltage setpoints
(i.e. adjustable hysteresis) and transient time delay settings. Refer to the
programming instructions for further information.
4.4.2.3.
GENERATOR UNDERFREQUENCY
The MEC 20 controller provides an underfrequency sensor for the
generator supply. The underfrequency sensor is programmable for type of
fault action (i.e. alarm or shutdown), frequency setpoint, and transient
time delay settings. Refer to the programming instructions for further
information.
4.4.2.4.
GENERATOR OVERFREQUENCY
The MEC 20 controller provides an overfrequency sensor for the
generator supply. The overfrequency sensor is programmable for type of
fault action (i.e. alarm or shutdown), frequency setpoint, and transient
time delay settings. Refer to the programming instructions for further
information.
4.4.2.5.
GENERATOR OVERCURRENT
The MEC 20 controller provides a 3-phase current sensor for the
generator supply. The current sensor is programmable for type of fault
action (i.e. alarm or shutdown), pickup current setpoint, and transient time
delay settings. Refer to the programming instructions for further
information.
Summary of Contents for MEC 20
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