Specifications

17
S
ection
3
SECTION 3 • FUNCTIONAL DESCRIPTION
TABLE OF CONTENTS
SE
CTION
3
• FUNCTIONAL DESCRIPTION
............................................................................................
18
INTRODUCTION
..................................................................................................................................
18
DVR
®
2000E FUNCTION BLOCKS
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18
Analog Inputs
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18
Generator Voltage
...............................................................................................................................
19
Phase B Line Current
..........................................................................................................................
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Field Voltage (V
FIELD
)
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19
Field Current (I
FIELD
)
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19
Analog (Auxiliary) Input
.......................................................................................................................
19
Contact Input Circuits
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19
Raise
...................................................................................................................................................
20
Lower
...................................................................................................................................................
20
VAR/Power Factor Control (52J/K) Option
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20
Parallel Generator Compensation (52L/M)
..........................................................................................
20
Communication Port
......................................................................................................................
20
Microprocessor
..............................................................................................................................
20
Power Input Stage
.........................................................................................................................
20
Power Supply
.................................................................................................................................
20
Power Amplifi er Stage
...................................................................................................................
20
Front Panel Indicators
....................................................................................................................
20
Front Panel Switches
.....................................................................................................................
21
Relay Output
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DVR
®
2000E OPERATING FEATURES
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21
Operating Modes
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21
Automatic Voltage Regulation Mode
...................................................................................................
21
Manual Mode
.......................................................................................................................................
21
VAR Control Mode (Optional)
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21
Power Factor Control Mode (Optional)
................................................................................................
21
Reactive Droop Compensation
......................................................................................................
22
Underfrequency
.............................................................................................................................
22
Generator Underfrequency
..................................................................................................................
22
Engine Unloading
................................................................................................................................
22
Protection
......................................................................................................................................
22
Overexcitation Shutdown (Field Voltage)
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23
Generator Overvoltage Shutdown
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DVR
®
2000E Overtemperature Shutdown
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Loss of Generator Sensing Shutdown
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23
Overexcitation Limiting (Field Current)
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23
Crowbar Shutdown
..............................................................................................................................
24
Generator Soft Start
......................................................................................................................
24
Figures
Figure 3-1. Simplifi ed Block Diagram
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