• Soft start control with an adjustable time setting in
AVR mode
• Dual slope voltage versus frequency (V/Hz)
characteristic
• Three-phase or single-phase voltage sensing
• Single-phase current sensing
• Field current sensing and field voltage sensing
• Ten protection functions
Adjusting the Cat DVR
In order to view and configure the parameters of the
Cat DVR, a PC with the Cat DVR software is
required.
Refer to Specifications, Systems Operation, Testing
and Adjusting, RENR7941, “Cat Digital Voltage
Regulator” for complete information.
Integrated Voltage Regulator (IVR)
The Integrated Voltage Regulator (IVR) provides
excitation current to the generator. The IVR is
controlled by the IVR function in the EMCP4. The IVR
function allows the EMCP4 to control the generator
voltage, optimize transient performance, and provide
feature specification.
The excitation module may interface with any of the
following excitation systems: Self Excitation (SE),
Internal Excitation (IE) and Permanent Magnet
(PMG) excitation systems.
For additional information about the IVR, see
Application and Installation, LEBE0006, and Special
Instruction, REHS9106.
80
SEBU7125-13
Operation Section
Voltage Regulators
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