How it Works
Marathon
Loading...
DVR 2000E
User Manual
93 pgs5.97 Mb0

Marathon DVR 2000E User Manual

®
DVR
Installation, Operation,
and Maintenance Manual
2000E
Main Index
3
INTRODUCTION
• General Information and Specications
• Human-Machine Interface
• Functional Description
• Installation
• Software for Windows Operating System
• Software for the Palm Operating System Platform
• Maintenance and Troubleshooting
WARNING!
DVR2000E presents an electric shock risk. Terminals and heat sinks are live at potentially lethal voltages. This high voltage may cause electrical shock that could result in injury or death.
To avoid personal injury or equipment damage, only qualied personnel should perform the procedures presented in this manual.
CAUTION Meggers and high potential test equipment should be used with extreme care. Incorrect use of such equipment could damage components contained in the device.
It is not the intention of this manual to cover all details and variations in equipment, nor does this manual provide data for every possible contingency regarding installation or operation. The availability and design of all features and options are subject to modication without notice.
Main Index
3
1
S
ection
1
CONTENTS
3
3
Main Index
A table of contents in the front of each section provides detailed information for that section. The sections in this manual are as follows.
Section 1 General Information ...............................................................................................................3
Section 2 Human-Machine Interface......................................................................................................7
Section 3 Functional Description ......................................................................................................... 17
Section 4 Installation............................................................................................................................ 25
Section 5 Marathon-DVR2000E-32 Software for Windows® OS ..........................................................38
Section 6 Marathon-DVR2000E Software for the Palm OS® Platform .................................................68
Section 7 Maintenance and Troubleshooting .......................................................................................85
2
SECTION 1 • GENERAL INFORMATION
TABLE OF CONTENTS
SECTION 1 • GENERAL INFORMATION ....................................................................................................4
GENERAL..............................................................................................................................................4
FEATURES ............................................................................................................................................4
SPECIFICATIONS .................................................................................................................................4
Operating Power..............................................................................................................................5
Generator Voltage Sensing..............................................................................................................5
Generator Current Sensing .............................................................................................................5
Contact Input Circuits ......................................................................................................................5
Common Alarm Output....................................................................................................................5
Field Output .....................................................................................................................................5
AVR Operating Mode.......................................................................................................................5
FCR (Manual) Operating Mode .......................................................................................................5
Var Operating Mode (Optional)........................................................................................................5
PF Operating Mode (Optional) ........................................................................................................5
Parallel Compensation.....................................................................................................................5
Communication Port ........................................................................................................................5
Field Overvoltage Protection ...........................................................................................................5
Field Overcurrent Protection............................................................................................................5
Generator Overvoltage Protection...................................................................................................5
Soft-Start Function ..........................................................................................................................6
Analog (Auxiliary) Input ...................................................................................................................6
Metering...........................................................................................................................................6
Environment ....................................................................................................................................6
Type Tests........................................................................................................................................6
Physical ...........................................................................................................................................6
ection
S
1
Main Index
3
3
S
S
ection
1
5
3
Main Index
5
Section 1 Index
ection
1
SECTION 1 • GENERAL INFORMATION
GENERAL
The DVR2000E is an electronic, solid-state, microprocessor-based control device. The DVR2000E regulates the output voltage of a brushless, ac generator by controlling the current into the generator exciter eld. Input power to the DVR2000E is from a multi-pole, high-frequency, permanent magnet generator (PMG).
The DVR2000E is supplied in an encapsulated package designed for behind-the-panel mounting. The DVR2000E is held in place by thread-forming screws that thread into its plastic shell. Front panel indicators (LEDs) annunciate regulator status and system conditions. DVR2000E connections are made through quarter-inch, quick-connect terminals on the rear panel. A 9-pin DB-9 type connector on the rear panel provides communication between the DVR2000E and an IBM compatible PC.
FEATURES
DVR2000E units have the following features and capabilities.
• Four control modes: automatic voltage regulation (AVR), manual or eld current regulation (FCR), power
factor (PF) regulation, and reactive power (Var) regulation.
• Programmable stability settings.
• Soft start control with an adjustable time setting in AVR control mode.
• Overexcitation (OEL) limiting in AVR, Var, and PF control modes.
• Underfrequency (volts/hertz) regulation.
• Crowbar circuitry protects the eld.
• Overtemperature protection.
• Three-phase or single-phase generator voltage (RMS) sensing/regulation in AVR mode.
• Single-phase generator current sensing for metering and regulation purposes.
• Field current and eld voltage sensing.
• Four contact sensing inputs for system interface.
• One common output relay for alarm indication and trip functions.
• Six protection functions (overexcitation shutdown, generator overvoltage shutdown, DVR overtemperature
shutdown, loss of generator sensing shutdown, overexcitation limiting and crowbar shutdown).
• Generator paralleling with reactive droop compensation and reactive differential compensation.
• Front-panel human-machine interface (HMI) indicates system and DVR2000E status and gives the ability to
make setting changes at the front panel.
• Rear RS-232 communication port for personal computer communication using MARATHON-DVR2000E-32
Windows® based software for fast, user-friendly, setup and control.
SPECIFICATIONS
DVR2000E electrical and physical specications are listed in the following paragraphs. The adjustment increments shown apply to the PC software. Adjustment increments for the Front Panel Controls are listed in Section 2.
4
Main Index
3
Section 1 Index
5
Operating Power
Single-Phase: 180 to 240 Vac Frequency Range: 200 to 360 Hz Burden: 350 VA Terminals: 3, 4
Underfrequency (V/Hz) Characteristic: Slope from 1 to 3PU is adjustable in
0.01 increments. Range: 40 to 65 Hz Increment: 0.01 Hz
Generator Voltage Sensing
Type: 1-phase/3-phase, 4 ranges, 50/60 Hz Terminals: E1, E2, E3 Burden: <1 VA per phase Range 1: 120 Vac (100 to 140 Vac) Range 2: 240 Vac (200 to 280 Vac) Range 3: 480 Vac (400 to 560 Vac) Range 4: 600 Vac
Generator Current Sensing
Type: 1-phase (BØ), 50/60 Hz Rating: 5 Aac maximum continuous Burden: <0.1 VA Terminals: CT1, CT2
Contact Input Circuits
Type: Dry Contact Interrogation Voltage: 13 Vdc Terminals Unit/Parallel Control: 52L, 52M Raise: 6U, 7 Lower: 6D, 7 Var/PF Enable 52J, 52K
Common Alarm Output
Type: Form A Rated Load: 7 Aac/7 Adc continuous Make: 30 Aac/30 Adc, carry for 0.2 sec Break: 7 Aac/0.1 Adc Operating Voltage: 240 Vac/250 Vdc maximum Terminals: AL1, AL2
Field Output
Continuous Rating: 75 Vdc, 3.0 Adc 10 Second Forcing Rating 200 Vac Power Input: 150 Vdc, 7.5 Adc Field Resistance: 18 minimum Terminals: F+, F-
FCR (Manual) Operating Mode
Adjustment Range: 0 to 3 Adc Increment: 0.01 A
Var Operating Mode (Optional)
Adjustment Range: 100% to –100% Increment: 0.1%
PF Operating Mode (Optional)
Adjustment Range: 0.6 lead to 0.6 lag Increment: 0.001
Parallel Compensation
Modes: Reactive Droop and Reactive Differential (cross-current)* Droop Adjustment Range: 0 to 10% Increment: 0.01% *Burden can exceed 1 VA if external resistors are added to
the CT circuit.
Communication Port
Interface: Full Duplex RS-232 Connection: DB-9 connector on rear panel Baud: 4800 Data Bits: 8 Parity: None Stop Bit: 1
Field Overvoltage Protection
Pickup: 0 -250 Vdc Time Delay: 15 seconds (xed)
Field Overcurrent Protection
Pickup Adjustment Range: 0 to 7.5 Adc Increment: 0.001 Adc Time Delay Adjustment Range: 0 to 10 seconds Increment: 1 second
ection
S
1
AVR Operating Mode
Adjustment Range: See generator voltage sensing Voltage Regulation: ±0.25% over load range at rated
power factor and constant generator
frequency. Temperature Drift: ±0.5% for a 40°C change Response Time: ≤1 cycle
Main Index
3
Section 1 Index
5
Generator Overvoltage Protection
Pickup Range: 105 to 120% of setpoint Increment: 1.0% Time Delay Fixed Setting: 0.75 seconds
5
S
7
3
Main Index
ection
1
Soft-Start Function
Time Adjust Range: 1 to 120 seconds Increment: 1 second
Analog (Auxiliary) Input
Voltage Range: -3 Vdc to +3 Vdc Setpoint Range: -30% to +30% shift Burden: 1 k Terminals: A, B
Metering
Accuracy of all metering values assumes 25°C, 50/60 Hz and less than 20% THD.
Generator Voltage Range: 10 V to 79 kV Accuracy: 0.5% Generator Current Range: 0.1 to 5,000 A (5 A CTs) Accuracy: 0.5% Frequency Range: 40 to 65 Hz Accuracy: 0.2 Hz Field Voltage Range: 0 to 200 Vdc Accuracy: 5.0% Field Current Range: 0 to 8.0 Adc Accuracy: 0.5% Power (Apparent, Real and Reactive) Range: 0 to 99 MVA, MW and MVar Accuracy: 3.0% Power Factor Range: -1.0 to –0.6, +0.6 to +1.0 Accuracy: 0.02
Environment
Operating Temp.: -40°C to +70°C (-40°F to
+158°F)
Storage Temp.: -40°C to +85°C (-40°F to +185°F)
Type Tests
Shock: 20 Gs in 3 perpendicular planes Vibration: 1 G at 5 to 26 Hz
0.036” double amplitude (27 to 52 Hz) 5 Gs at 53 to 500 Hz Salt Fog: Tested per MIL-STD-810E
Physical
Weight: 1.52 lb. (690 g)
Phase Angle
Range: 0 to 360° Accuracy: 2.0°
Main Index
3
Section 1 Index
5
6
SECTION 2 • HUMAN-MACHINE INTERFACE
TABLE OF CONTENTS
SECTION 2 • HUMAN-MACHINE INTERFACE .................................................................................... 8
GENERAL....................................................................................................................................... 8
FRONT PANEL CONTROLS AND INDICATORS ........................................................................... 8
INITIAL ADJUSTMENTS ................................................................................................................ 9
MAKING SETTINGS CHANGES .................................................................................................. 10
Front Panel Operation............................................................................................................. 10
Setting Level Indication........................................................................................................... 11
COMMUNICATION PORT ............................................................................................................ 16
Figures
Figure 2-1. DVR2000E Front Panel Indicators....................................................................................... 8
Figure 2-2. DVR2000E Communication Port Location ........................................................................ 16
Tables
Table 2-1. DVR2000E Front Panel Control Descriptions........................................................................ 8
Table 2-2. DVR2000E Front Panel Mode Status Indicator Descriptions ................................................ 9
Table 2-3. DVR2000E Front Panel Adjustment Indicator Descriptions ................................................ 10
Table 2-4. Coarse Voltage Adjust Setting Ranges ............................................................................... 11
Table 2-5. Sensing Mode (Single-phase/Three-phase) Select ............................................................ 11
Table 2-6. Manual Mode (On/Off) Select ............................................................................................. 12
Table 2-7. Manual Mode (If – Limit) Adjustment Ranges..................................................................... 12
Table 2-8. On-Line Operating Mode (AVR (OFF) / VAR / PF) Select ................................................... 12
Table 2-9. VAR Control Adjustment Ranges ........................................................................................ 13
Table 2-10. Power Factor Control Adjustment Ranges ........................................................................ 13
Table 2-11. Underfrequency Adjustment Ranges................................................................................ 14
Table 2-12. Droop Adjustment Ranges................................................................................................ 14
Table 2-13. Stability Range Selection Settings.................................................................................... 15
Table 2-14. Gain Adjustment Ranges.................................................................................................. 15
Table 2-15. Fine Voltage Adjust Setting Ranges.................................................................................. 15
ection
S
2
Main Index
3
7
S
ection
2
SECTION 2 • HUMAN-MACHINE INTERFACE

































9
3
Main Index
5
Section 2 Index
GENERAL
FRONT PANEL CONTROLS AND INDICATORS
S
ection
2
DVR2000E front panel controls and indicators consist of 12 red LEDs and three pushbuttons. Figure 2-1 illustrates the front panel controls and indicators of the DVR2000E. The LEDs indicate control mode and status conditions and are also used when adjusting settings at the front panel.
Figure 2-1. DRV2000E Front Panel Indicators
Main Index
3
Control Description
SELECT
DOWN This pushbutton decreases the setting level of the function being adjusted.
UP This pushbutton increases the setting level of the function being adjusted.
5
Table 2-1. DVR2000E Front Panel Control Descriptions
This pushbutton selects a function for adjustment. Successive presses of the SELECT pushbutton scrolls through the list of DVR2000E functions to be adjusted.
Section 2 Index
8
Table 2-2. DVR2000E Front Panel Mode Status Indicator Descriptions
Indicator Description
Over Excitation LED #12
This LED blinks rapidly when the Overexcitation Protection feature is enabled and the eld voltage exceeds the setpoint (80 V default) for 15 seconds. The DVR2000E will shut down when an overexcitation condition is detected. The Over Excitation LED blinks for 5 seconds when the DVR2000E is powered up following an overexcitation condition.
Over Temperature LED #11
Under Frequency LED #7 This LED blinks rapidly during an under frequency condition.
Var/PF Active LED #5 This LED blinks rapidly when operating in Var or Power Factor mode.
If – Limit LED #4
Manual Mode LED #3 This LED blinks rapidly when operating in Manual mode.
Loss of Sensing LED #2
Over Voltage LED #1
This LED blinks rapidly when the internal temperature of the DVR2000E has exceeded its limit and causes the unit to shut down.
This LED blinks rapidly when the eld current exceeds the programmed overexcitation limit. It will continue to ash until the overexcitation condition ceases or the overexcitation time delay expires and the DVR2000E shuts down. The Overexcitation Limiting LED ashes for 5 seconds when the DVR2000E is powered up following an overexcitation limiting condition.
This LED blinks rapidly when a loss of generator sensing voltage is detected. The DVR2000E will shut down. The Loss of (Generator) Sensing LED ashes for 5 seconds when the DVR2000E is powered up following shutdown for loss of generator sensing condition.
This LED blinks rapidly when the generator output voltage exceeds the setpoint for 0.75 seconds. The DVR2000E will shut down when a generator overvoltage condition is detected. The (Generator) Overvoltage LED ashes for 5 seconds when the DVR2000E is powered up following a generator overvoltage condition.
INITIAL ADJUSTMENTS
ection
S
2
CAUTION
Read and understand the operation of the individual adjustments before attempting any initial adjustments.
Before starting the generator, the procedures in the following paragraphs should be performed.
Remove the 5 ampere fuse before starting the generator for the rst time. Perform all preliminary engine governor adjustments without the regulator energized.
After initial governor adjustments are complete, reinstall the 5 ampere fuse and connect only the power input leads or PMG leads to the regulator. Remove all other regulator connections that may be present and temporarily insulate them.
Start and run the generator at rated speed. The regulator will perform the self-test and enter a shutdown mode. At this time, initial adjustments can be made. To do this, step through each adjustment using the “SELECT” button. For each adjustment, press the “UP” or “DOWN” button to obtain the desired level on the LED bar graph.
After the initial adjustments are made, shut down the generator and connect the remaining regulator leads. The generator may be started and nal adjustments may be performed on the regulator.
9
Main Index
3
Section 2 Index
5
S
S
ection
2
11
3
Main Index
5
Section 2 Index
ection
2
MAKING SETTINGS CHANGES
The following paragraphs describe how the HMI is used to make setting changes.
Front Panel Operation
The LEDs indicate control mode and status conditions and are also used when adjusting settings at the front panel. Repeatedly pressing the “SELECT” button steps through the various adjustments, starting with the “Course Voltage” adjustment and progressing through to the “Fine Voltage” adjustment. The next press of the “SELECT” button exits the adjustment mode.
When in the adjustment mode, only the adjustment LEDs will be lit. All mode status LEDs will be turned off. Adjustment LEDs are of two types. The rst type is the LED that indicates the function being adjusted. This LED blinks slowly (approximately once per second). The second type is the LED that indicates the level of adjustment. This LED is on steady. The level of adjustment is changed by pressing the “UP” or “DOWN” button. When an adjustment level LED (on steady) overlaps the function LED (slow blinking), the LED will remain in the slow blinking mode. If no button is pressed for a period of one minute, the regulator saves the settings and exits the adjustment mode. If regulator power is interrupted before the automatic save feature is commanded, that level of adjustment will be lost.
When the regulator is not in the adjustment mode and either the “UP” or “DOWN” button is pressed, the regulator enters the “Fine Voltage” adjustment mode and changes the generator ne voltage set point by 0.1V. Successive presses of the “UP” or “DOWN” button shall continue to adjust the ne voltage setting. Pressing the “SELECT” button causes the regulator to exit the adjustment mode. Mode status LEDs blink approximately twice per second.
Table 2-3. DVR2000E Front Panel Adjustment Indicator Descriptions
Indicator Description
Fine Voltage
LED #11
Gain
LED #10
Stability Range
LED #9
Droop
LED #8
Under Frequency
LED #7
VAR/PF Adjust
LED #6
VAR/PF Select
LED #5
Manual Mode Adj.
LED #4
Manual Mode On/
Off LED #3
This LED blinks slowly when the “Fine Voltage” level is selected for adjustment via the front panel push buttons.
This LED blinks slowly when the “Gain” adjustment is selected for ne tuning of loop gain via the front panel push buttons.
This LED blinks slowly when selecting the desired “Stability Range” via the front panel push buttons.
This LED blinks slowly when the “Droop” percentage level is selected for adjustment via the front panel push buttons.
This LED blinks slowly when the “Under Frequency” knee point is selected for adjustment via the front panel push buttons.
This LED blinks slowly when the level of the programmed mode (VAR or Power Factor) is selected for adjustment via the front panel push buttons (DVR2000EC only).
This LED blinks slowly when selecting the programmed mode (VAR, Power Factor, or none(AVR)) via the front panel push buttons. When in this adjustment mode, LED #1 is on solid for none(AVR), LED #2 is on solid for Power Factor mode, and LED #3 is on solid for VAR mode (DVR2000EC only).
This LED blinks slowly when the “Manual Mode” (eld current) regulation set point is selected for adjustment via the front panel push buttons.
This LED blinks slowly when selecting or deselecting “Manual Mode” (eld current regulation) as the active operating mode via the front panel pushbuttons. When in this adjustment mode, LED #1 is on if Manual Mode is off, LED #2 is on if Manual Mode is on.
Main Index
3
Section 2 Index
5
10
1 - 3 Phase
Sensing
LED #2
This LED blinks slowly when selecting single or three phase sensing via the front panel push buttons. When in this adjustment mode, LED #1 is on if single phase sensing is selected, LED #3 is on if three phase sensing is selected.
Coarse Voltage
LED #1
Setting Level Indication
Indication of a setting level is provided by the 12 front panel LED indicators. The upper limit of a setting range is represented by the top LED which is labeled GEN/LAG and MAX. The lower limit of a setting range is represented by the bottom LED which is labeled MIN and ABSORB/LEAD. The setting range for each LED is summarized in Tables 2-4 through 2-15. LEDs in the tables are numbered from 1 to 12 with 1 being the lowermost LED (labeled MIN/ABSORB/LEAD) and 12 being the uppermost LED (labeled GEN /LAG/MAX.
This LED blinks slowly when the “Coarse Voltage” level is selected for adjustment via the front panel push buttons.
Table 2-4. Coarse Voltage Adjust Setting Ranges
Coarse Voltage – LED 1 Blinking Slowly
Maximum Adjustment Range
Increment: 6 Vac
Increase Decrease
Minimum
LED
12 563 600 558 600 11 521 557 516 552 10 479 515 474 510
9 437 473 432 468
8 395 431 390 426
7 353 389 348 384
6 311 347 306 342
5 269 305 264 300
4 227 263 222 258
3 185 221 180 216
2 143 179 138 174
1 95 137 95 132
Value
Maximum
Value
Minimum
Value
Maximum
Value
ection
S
2
Main Index
3
Table 2-5. Sensing Mode (Single-phase/Three-phase) Select
Single-phase/Three-phase select – LED #2 Blinking Slowly
LED MODE
12 N/A 11 N/A 10 N/A
9 N/A 8 N/A 7 N/A 6 N/A 5 N/A 4 N/A 3 Three-phase 2 N/A 1 Single-phase
11
Section 2 Index
5
S
S
ection
2
13
3
Main Index
5
Section 2 Index
ection
2
Table 2-6. Manual Mode (On/Off) Select
Manual Mode On/Off – LED 3 Blinking Slowly
LED MODE
12 N/A 11 N/A 10 N/A
9 N/A 8 N/A 7 N/A 6 N/A 5 N/A 4 N/A 3 N/A 2 ON 1 OFF
Table 2-7. Manual Mode (If – Limit) Adjustment Ranges
Manual Mode Adjust – LED 4 Blinking Slowly
Adjustment Range: 0 to 3 Adc
Increment: 0.01 Adc
LED Minimum Value Maximum Value
12 2.75 3 11 2.50 2.74 10 2.25 2.49
9 2.00 2.24 8 1.75 1.99 7 1.50 1.74 6 1.25 1.49 5 1.00 1.24 4 0.75 0.99 3 0.50 0.74 2 0.25 0.49 1 0 0.24
Main Index
3
Table 2-8. On-Line Operating Mode (AVR (OFF)/VAR/PF) Select *
AVR (OFF) / VAR / PF Select – LED #5 Blinking Slowly
LED MODE
12 N/A 11 N/A 10 N/A
9 N/A 8 N/A 7 N/A 6 N/A 5 N/A 4 N/A 3 Var 2 PF 1 AVR
* Var/PF control is available only on DVR2000EC.
12
Section 2 Index
5
Table 2-9. VAR Control Adjustment Ranges *
VAR Control Adjust – LED 6 Blinking Slowly
Maximum Adjustment Range: −100% (absorb) to +100%
(generate)
Increment: 1.0%
LED Minimum Value † Maximum Value †
12 84 100 11 67 83 10 51 66
9 34 50 8 17 33 7 1 16 6 -16 0 5 -33 -17 4 -49 -34 3 -66 -50 2 -83 -67 1 -100 -84
* Var/PF control is available only on DVR2000EC.
† Minimum and maximum values may differ from the Table 2-9 values if
the value has been changed in MARATHON-DVR2000E-32 software.
MARATHON-DVR2000E-32 software has 0.5 percent resolution compared
to the 1.0 percent resolution of the HMI.
ection
S
2
Table 2-10. Power Factor Control Adjustment Ranges *
Power Factor Control Adjust – LED 6 Blinking Slowly
Maximum Adjustment Range: +0.6 (lag) to –0.6 (lead)
Increment: 0.01
LED Minimum Value † Maximum Value †
12 0.66 0.60 11 0.73 0.67 10 0.80 0.74
9 0.86 0.81 8 0.93 0.87 7 1.0 0.94 6 -0.94 -0.99 5 -0.87 -0.93 4 -0.80 -0.86 3 -0.74 -0.79 2 -0.67 -0.73 1 -0.60 -0.66
* Var/PF control is available only on DVR2000EC.
† Minimum and maximum values may differ from the Table 2-10 values if
the value has been changed in MARATHON-DVR2000E-32 software.
MARATHON-DVR2000E-32 software has 0.001 resolution compared to
the 0.01 resolution of the HMI.
Main Index
3
Section 2 Index
5
13
S
S
ection
2
15
3
Main Index
5
Section 2 Index
ection
2
Table 2-11. Underfrequency Adjustment Ranges
Underfrequency Adjust – LED 7 Blinking Slowly
Maximum Adjustment Range: 40 to 65 Hz
Increment: 0.1 Hz
LED Minimum Value Maximum Value
12 63.0 65.0 11 60.9 62.9 10 58.8 60.8
9 56.7 58.7 8 54.6 56.6 7 52.5 54.5 6 50.5 52.4 5 48.4 50.4 4 46.3 48.3 3 44.2 46.2 2 42.1 44.1 1 40.0 42.0
Table 2-12. Droop Adjustment Ranges
Droop Adjust – LED 8 Blinking Slowly
Adjustment Range: 0 to 10%
Increment: 0.25%
LED Minimum Value * Maximum Value *
12 9.25 10.00 11 8.5 9.00 10 7.75 8.25
9 6.75 7.50 8 6.00 6.50 7 5.25 5.75 6 4.25 5.00 5 3.5 4.00 4 2.75 3.25 3 1.75 2.5 2 1 1.5 1 0 0.75
* Minimum and maximum values may differ from the Table 2-12 values if
the value has been changed in MARATHON-DVR2000E-32 software. MARATHON-DVR2000E-32 software has 0.01% resolution compared to the 0.25 percent resolution of the HMI.
Main Index
3
Section 2 Index
5
14
Table 2-13. Stability Range Selection Settings
Stability Range Select – LED 9 Blinking Slowly
Adjustment Range per LED: 1
Frame/Poles LED Range Selected
12 N/A 11 N/A
10 N/A
9 N/A
Programmable 8 21
1,000/6 7 7
740/6 6 6
1,000/4 5 5
740/4 4 4 570/4 3 3 430/4 2 2 360/4 1 1
Table 2-14. Gain Adjustment Ranges
Gain Adjust – LED 10 Blinking Slowly
Maximum Adjustment Range:
0.5 to 4.5 kg for AVR and 0 to 100 kg for FCR
When the unit is operating in AVR, PF, and var modes, gain adjustments are made to AVR kg. When in FCR mode, gain adjustments are made to FCR kg. Front Panel increments: AVR kg = 0.01 FCR kg = 0.1
Minimum Value * Maximum Value *
LED
12 4.17 11.1 4.50 12 11 3.84 10.1 4.16 11 10 3.50 9.1 3.83 10
9 3.17 8.1 3.49 9 8 2.84 7.1 3.16 8 7 2.50 6.1 2.83 7 6 2.17 5.1 2.49 6 5 1.84 4.1 2.16 5 4 1.50 3.1 1.83 4 3 1.17 2.1 1.49 3 2 0.85 1.1 1.16 2 1 0.5 0 0.84 1
MARATHON-DVR2000E-32 software.
AVR FCR AVR FCR †
† MARATHON-DVR2000E-32 software allows a maximum FCR kg setting of 1,000 kg. A kg setting of 12 or
more entered in MARATHON-DVR2000E-32 software will be reduced to 12 with the rst push of the HMI “DOWN” pushbutton when adjusting FCR kg via the front panel.
ection
S
2
Main Index
3
Table 2-15. Fine Voltage Adjust Setting Ranges
Fine Voltage Adjust – LED #11 Blinking Slowly
Maximum Adjustment Range: -15% to +15%
Increment: 0.1V The adjustment range for Fine Voltage Adjust is based on the ne voltage adjustment band setting. The default adjustment range is –10% to +10%. See Section 5, MARATHON-DVR2000E-32 Software for Windows® OS, Setting Denitions, Setting Adjustments for information about the Fine Voltage Adjustment Band Setting.
15
Section 2 Index
5
S
17
3
Main Index
ection
2
COMMUNICATION PORT
A communication port is located on the rear panel and consists of a female RS-232 (DB-9) connector. The communication port serves as an interface for programming (setup) of the DVR2000E. Figure 2-2 illustrates the location of the communication port.
Programming requires a standard 9-pin serial communication cable connected between the DVR2000E and an IBM-compatible PC or handheld computer operating with MARATHON-DVR2000E-32 software. MARATHON-DVR2000E-32 is a Windows® 98/NT based communication software package that is supplied with the DVR2000E. A detailed description of MARATHON-DVR2000E-32 software is provided in Section 5, MARATHON-DVR2000E-32 Software.
Main Index
3
Section 2 Index
5
Figure 2-2. DVR2000E Communication Port Location
16
SECTION 3 • FUNCTIONAL DESCRIPTION
TABLE OF CONTENTS
SECTION 3 • FUNCTIONAL DESCRIPTION ............................................................................................18
INTRODUCTION..................................................................................................................................18
DVR2000E FUNCTION BLOCKS ........................................................................................................18
Analog Inputs.................................................................................................................................18
Generator Voltage ...............................................................................................................................19
Phase B Line Current.......................................................................................................................... 19
Field Voltage (VFIELD)........................................................................................................................... 19
Field Current (IFIELD) ............................................................................................................................19
Analog (Auxiliary) Input .......................................................................................................................19
Contact Input Circuits ....................................................................................................................19
Raise ...................................................................................................................................................20
Lower...................................................................................................................................................20
Var/Power Factor Control (52J/K) Option ............................................................................................20
Parallel Generator Compensation (52L/M)..........................................................................................20
Communication Port ...................................................................................................................... 20
Microprocessor .............................................................................................................................. 20
Power Input Stage .........................................................................................................................20
Power Supply................................................................................................................................. 20
Power Amplier Stage ...................................................................................................................20
Front Panel Indicators.................................................................................................................... 20
Front Panel Switches..................................................................................................................... 21
Relay Output..................................................................................................................................21
DVR2000E OPERATING FEATURES..................................................................................................21
Operating Modes ........................................................................................................................... 21
Automatic Voltage Regulation Mode....................................................................................................21
Manual Mode.......................................................................................................................................21
Var Control Mode (Optional)................................................................................................................ 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).............................................................................................23
Generator Overvoltage Shutdown....................................................................................................... 23
DVR Overtemperature Shutdown........................................................................................................ 23
Loss of Generator Sensing Shutdown.................................................................................................23
Overexcitation Limiting (Field Current)................................................................................................23
Crowbar Shutdown.............................................................................................................................. 24
Generator Soft Start ......................................................................................................................24
ection
S
3
Figures
Figure 3-1. Simplied Block Diagram .........................................................................................................18
17
Main Index
3
S
ection
3
SECTION 3 • FUNCTIONAL DESCRIPTION
19
3
Main Index
5
Section 3 Index
INTRODUCTION
This section describes how the DVR2000E functions and explains its operating features. To ease understanding, DVR2000E functions are illustrated in the block diagram of Figure 3-1. A detailed description of each function block is provided in the paragraphs under the heading of DVR2000E Function Blocks.
DVR2000E operating features include four operating modes, four protective functions, startup provisions, reactive droop compensation, underfrequency compensation, and an auxiliary analog input. A detailed description of each operating feature is provided in the paragraphs under the heading of DVR2000E Operating Features.
S
ection
3
Figure 3-1. Simplied Block Diagram
DVR2000E FUNCTION BLOCKS
The following paragraphs describe each of the function blocks illustrated in Figure 3-1. The function of each block is explained along with the operation of all function block inputs and outputs.
Analog Inputs
Six analog voltage and current inputs may be sensed and brought to the DVR2000E input.
18
Main Index
3
Section 3 Index
5
Generator Voltage
Generator voltage is monitored at terminals E1 (A-phase), E2 (B-phase), and E3 (C-phase). Nominal voltages of up to 600Vac may be sensed at these terminals. Voltage applied to these inputs is scaled and conditioned before being applied to the input of the ADC. The voltage signal from phase C and A (V the ADC to calculate the rms value of generator voltage across phases C and A. Likewise, the voltage signal from phase C and B (V phases C and B. The rms value of generator phase B to phase A voltage (V from the phase C to phase A signal (V
Additionally, the generator phase C to phase A (V signal is applied to the microprocessor and is used to calculate generator frequency.
Phase B Line Current
The phase B line current (IB) signal is developed through a customer supplied current transformer (CT) and monitored through terminals CT1 and CT2. Current up to 5 amperes rms may be monitored at these terminals. The current monitored at these terminals is scaled and conditioned by an internal current transformer and active circuitry for use by the ADC. The signal applied to the ADC is used to calculate the rms value of phase B line current.
Additionally, the phase angle between phase B line current and phase C to phase A generator voltage is calculated for use during Droop and Var/Power Factor operation.
) of the generator is used by the ADC to calculate the rms value of generator voltage across
C-B
)and the phase C to phase B (V
C-A
) signal is applied to a ltered zero cross detector circuit. This
C-A
) is calculated by the microprocessor
B-A
) signal.
C-B
) of the generator is used by
C-A
ection
S
3
CAUTION
The DVR2000E CT connections are reversed from the DVR2000.
Field Voltage (VFIELD)
Voltage across the regulator eld output terminals, F+ and F-, is monitored, scaled, and conditioned before being applied to the ADC. This signal is used to calculate the dc value of eld voltage for use in system protection.
Field Current (IFIELD)
Current through the main power output switch is converted to a proportional voltage level. This voltage signal is scaled and conditioned before being applied to the input of the ADC. The result is used to calculate the dc value of eld current for use in the Manual mode of operation as well as protection of the system.
Analog (Auxiliary) Input
CAUTION
If the DC voltage is removed from the Analog (Auxiliary) Input, the operating setpoint will
return to the original value.
This input allows adjustment of the DVR-2000E regulation setpoint by the application of a positive or negative dc voltage across terminals A and B. Voltage up to +3 Vdc may be applied at this input. The circuit induces a 1,000-ohm burden on the dc source. The application of a +3 Vdc signal corresponds to a +30 percent change in setpoint.
Contact Input Circuits
Four contact input circuits powered from an internal 13 Vdc supply provide input control from user-supplied contacts.
19
Main Index
3
Section 3 Index
5
S
S
ection
3
21
3
Main Index
5
Section 3 Index
ection
3
Raise
Closing a contact across terminals 6U and 7 causes the active operating setpoint to increase. This function is active as long as the contact is closed.
Lower
Closing a contact across terminals 6D and 7 causes the active operating setpoint to decrease. This function is active as long as the contact is closed.
Var/Power Factor Control (52J/K) Option
Closing a contact across terminals 52J and 52K disables var/power factor control. An open contact enables the DVR2000E(C) to control the generator reactive power in either the var or the power factor mode. The contact has no effect when this option is not present. For more information, refer to the Parallel Generator Compensation (52L/M) contact input.
Parallel Generator Compensation (52L/M)
Closing a contact across terminals 52L and 52M disables parallel operation. An open contact enables parallel operation and the DVR2000E operates in reactive droop compensation mode.
If the Var/Power Factor Control option is present, the 52J/K input has priority. Therefore, if the 52J/K and the 52L/M inputs are both open, the system operates in var/power factor mode.
Communication Port
The communication port provides the interface for user programming (setup) of the DVR2000E. Connection is made to the female RS-232 (DB-9) connector with a user-supplied, standard 9-pin cable. The communication port is optically isolated and is powered from a transformer-isolated supply.
Microprocessor
Power Input Stage
Input power is applied to terminals 3 and 4 from the PMG. It is rectied and ltered before being applied to the power amplier and the power supply. Input power is single-phase in the range of 180 to 240 Vac at a frequency of 200 to 360 hertz.
Power Supply
The internal switch-mode power supply receives power from the power input stage and supplies power at the required dc voltage levels to the internal circuitry of the DVR2000E.
Power Amplier Stage
The power amplier receives power from the power input stage and supplies a controlled amount of power to the exciter eld via terminals F+ and F-. The amount of power supplied to the exciter eld is based on gating pulses received from the microprocessor. The power amplier uses a solid state power switch to provide the required power to the exciter eld. Power amplier output to the eld is rated up to 75 Vdc at 3 Adc continuous and 150 Vdc at 7.5 Adc for 10 seconds.
Front Panel Indicators
Twelve front panel LED indicators light to indicate various operating modes, protective functions, and adjustments. Section 2, Human-Machine Interface provides more information about the front panel indicators.
Main Index
3
Section 3 Index
5
20
Front Panel Switches
Changes to settings can be made at the front panel using the three pushbutton switches. These push-buttons are labeled Select, Up, and Down. Section 2, Human-Machine Interface provides more in-formation about the front panel switches.
Relay Output
A common alarm output contact is provided through terminals AL1 and AL2. This normally open, form A contact annunciates alarm or generator trip conditions and closes in the event of a protective shutdown or transfer. The relay output is non-latching.
DVR2000E OPERATING FEATURES
The following paragraphs describe the characteristics of each DVR2000E operating feature.
Operating Modes
The DVR2000E provides up to four modes of operation selectable through Windows® or Palm OS® communication software. Automatic voltage regulation mode and Manual mode are standard features. Var and Power Factor modes are an option.
Automatic Voltage Regulation Mode
In Automatic Voltage Regulation (AVR) mode, the DVR2000E regulates rms generator output voltage. This is accomplished by sensing generator output voltage and adjusting dc output excitation current to maintain voltage at the regulation setpoint. The regulation setpoint is adjusted by the Raise and Lower contact inputs, front panel switches, or through Windows® or Palm OS® communication software. The regulation point may also be modied by the Droop function or the Underfrequency function under certain conditions.
ection
S
3
Manual Mode
In Manual mode, also known as Field Current Regulation (FCR) mode, the DVR2000E maintains dc excitation current at a set level. The current-level setpoint is adjustable from 0 to 3 Adc by the Raise and Lower contact inputs, front panel switches, or through Windows® or Palm OS® communication software.
WARNING!
The Manual mode excitation level must be evaluated prior to enabling this feature. If the level of
excitation current is inappropriate for the generator, severe damage to the generator may occur.
For initial startup, if the regulator is in Manual mode and set at 0.25 amperes, the generator should come up to approximately half-voltage. This allows wiring and sensing leads to be checked before the regulator is switched to AVR mode. Increasing the eld current to 0.5 amperes will bring the generator up to approximately rated, no-load voltage.
Var Control Mode (Optional)
In Var Control mode, the DVR2000E(C) maintains generator vars (volt-amperes, reactive) at a set level when paralleling with an innite bus. The DVR2000E(C) calculates generator vars using the sensed generator output voltage and current quantities and then adjusts the dc excitation current to maintain vars at the setpoint. Var control is enabled and disabled through the front panel switches, Windows® or Palm OS® communication software. When the software is turned on, var control is enabled or disabled through the Var/Power Factor Control (52J/K) contact input circuit. The var setpoint is adjustable from 100 percent absorb to 100 percent generate through the Raise and Lower contact inputs, front panel switches, or through Windows® or Palm OS® software.
Power Factor Control Mode (Optional)
In Power Factor Control mode, the DVR2000E(C) maintains generator power factor at a set level when paralleling
21
Main Index
3
Section 3 Index
5
S
S
ection
3
23
3
Main Index
5
Section 3 Index
ection
3
with an innite bus. The DVR2000E(C) calculates generator power factor using the sensed generator output voltage and current quantities and then adjusts the dc excitation current to maintain power factor at the setpoint. Power factor control is enabled or disabled through the front panel switches, Windows® or Palm OS® software. When the software is turned on, it is enabled or disabled through the Var/Power Factor Control (52J/K) contact input circuit. The power factor setpoint is adjustable between 0.6 lag and 0.6 lead through the Raise and Lower contact inputs, front panel switches, or through Windows® or Palm OS® communication software.
Reactive Droop Compensation
The DVR2000E provides a reactive droop compensation feature to assist in the sharing of reactive load during parallel generator operation. When this feature is enabled, the DVR2000E calculates the reactive portion of the generator load using the sensed generator output voltage and current quantities and then modies the voltage regulation setpoint accordingly. A unity power factor generator load results in almost no change in generator output voltage. A lagging power factor generator load (inductive) results in a reduction of generator output voltage. A leading power factor generator load (capacitive) results in an increase of generator output voltage. Droop is adjustable up to 10 percent with rated, nominal B-phase line current (5 amperes applied through terminals CT1 and CT2) and 0.8 power factor. The droop feature is enabled and disabled through the Parallel Generator Compensation contact input circuit (terminals 52L and 52M). If the Var/Power Factor option is present, the 52J/K input must also be closed to disable droop.
Underfrequency
Generator Underfrequency
When generator frequency drops below the selected knee frequency setpoint, the voltage setpoint is automatically adjusted by the DVR2000E so that generator voltage follows the selected PU (per unit) V/Hz curve. When operating on the selected PU V/Hz curve, the Underfrequency Active indicator ashes on the front panel and in MARATHON-DVR2000E-32. The knee frequency is adjustable from 40 to 65 hertz and the PU V/Hz curve may be set to a slope from 1 to 3 in increments of 0.01 through the Windows® or Palm OS® communication software. The default is 59 Hz and a slope of 1.
Engine Unloading
The Engine Unloading feature modies the underfrequency curve. This feature becomes active when the generator frequency decreases a programmable amount (Unloading Activation – Frequency) below the knee frequency setpoint, and when the speed change rate is greater than the Unloading Activation - Rate. The amount of droop while Engine Unloading is active is adjusted by the Unloading Droop - Percentage (%) setting. The amount of time Engine Unloading is active is set by Unloading Droop - Time (sec.).
Engine unloading adjustments are made through the Windows and Palm OS communication software.
Unloading Activation – Frequency (Hz) is entered as a value below the underfrequency corner where the engine unloading feature may be activated. A frequency value of 0.9 to 9.0 hertz can be entered in 0.1 hertz increments. The default value is 0.9 hertz.
Unloading Activation – Rate (Hz/25 msec) of 0 to 25.5 hertz per 25 milliseconds can be entered in 0.1 hertz per 25 millisecond increments. The engine unloading feature is activated when the frequency rate of change exceeds the setting of this eld. The default value is 0.1.
Unloading Droop – Percentage (%) eld denes the percent drop in generator output voltage for each 1.5 percent decrease in generator frequency when operating in the Engine Unloading mode. The Unloading Droop Percentage is adjustable from 1 to 20 percent in 1 percent steps. The default value is 10 percent.
Unloading Droop – Time (sec) value denes the length of time that the Engine Unloading mode may be active before control is passed to the normal Underfrequency mode of operation. Droop time is adjustable from 1 to 5 seconds in 1 second increments. The default value is 1 second.
Protection
The DVR2000E has the six protective functions listed below:
Main Index
3
Section 3 Index
5
22
• Overexcitation shutdown
• Generator overvoltage shutdown
• DVR overtemperature shutdown
• Loss of generator sensing shutdown
• Overexcitation limiting
• Crowbar shutdown
Overexcitation Shutdown (Field Voltage)
This function is enabled or disabled through MARATHON-DVR2000E-32 software. When enabled, if eld voltage exceeds the setpoint (80 Vdc default), the Overexcitation Shutdown indicator ashes on the front panel and in the Windows® or Palm OS® communication software, the relay output closes after 15 seconds and the DVR2000E shuts down. When the DVR2000E is powered up following an over-excitation shutdown, the Overexcitation Shutdown indicator will ash for 5 seconds.
Generator Overvoltage Shutdown
The DVR2000E monitors the sensed generator output voltage. If it exceeds the overvoltage setpoint (a percent of nominal) for 0.75 seconds, the Generator Overvoltage indicator ashes on the front panel LED and in the Windows® and Palm OS® communication software, the relay output closes and the DVR2000E shuts down. When the DVR2000E is powered up following a generator overvoltage shutdown, the Generator Overvoltage indicator will ash for 5 seconds. The default setpoint is 120 percent of nominal.
ection
S
3
DVR Overtemperature Shutdown
A temperature sensor within the DVR2000E continually monitors the temperature of the device. If the temperature exceeds 70°C (158°F), the DVR Overtemperature indicator ashes on the front panel and in the Windows® and Palm OS® communication software, the relay output closes and the DVR2000E shuts down.
Loss of Generator Sensing Shutdown
The DVR2000E monitors the sensed generator output voltage and takes protective action if a loss of sensing voltage is detected. For single-phase sensing, a sensed voltage of less than 50 percent of nominal is interpreted as a loss of sensing. For three-phase sensing, the total loss of a sensed phase or an imbalance between phases of more than 20 percent nominal is interpreted as a loss of sensing. When sensing input continuity is not lost, an adjustable time delay of 0 to 25 seconds is present when a loss of sensing condition is detected. If sensing input continuity is lost, the time delay is disabled.
If a loss of sensing occurs, the Loss of Generator Sensing indicator ashes on the front panel and in the Windows® and Palm OS® communication software, the relay output closes, and the DVR2000E shuts down. When the DVR2000E is powered up following a loss of generator sensing shutdown, the Loss of Sensing indication will ash for 5 seconds.
This function is disabled when a generator short circuit condition is detected or when sensed frequency drops below 12Hz. A generator short-circuit is determined when the phase B CT current exceeds 3PU (>15 Aac sensing current). Loss of sensing is not active during soft start time.
Overexcitation Limiting (Field Current)
The DVR2000E has a eld current limit that is factory preset at 6.5 amperes. The limit is adjustable from 0 to 7.5 amperes with an adjustable time delay that has a range of 0 to 10 seconds. Both settings are made through the Windows® and Palm OS® communication software. When the overexcitation limit is exceeded, the Overexcitation Limiting indicator ashes on the front panel and in the Windows® and Palm OS® communication software. When the adjustable time delay expires, the relay output closes and the DVR2000E shuts down. When the DVR2000E is powered up following overexcitation limiting, the Overexcitation Limiting indicator will ash for 5 seconds.
Main Index
3
Section 3 Index
5
23
S
25
3
Main Index
Crowbar Shutdown
The Crowbar Shutdown Circuit protects the generator rotor from overcurrent damage resulting from a shorted DVR2000E power switch. During operation, if the eld voltage exceeds the setpoint and the power stage receives no gating pulses for 1.5 seconds, the Crowbar Circuit activates and places a short-circuit across the DVR2000E input power terminals. This protects the generator by blowing the input power fuse and removing operating power from the device.
Generator Soft Start
The DVR2000E incorporates an adjustable soft start feature that controls the time for generator voltage to ramp to the regulation setpoint. The ramp rate is adjustable from 1 to 120 seconds in 1 second increments through the Windows® and Palm OS® communication software. The underfrequency feature is also active during soft start and takes priority in control of the generator voltage. The default setting is 7 seconds.
ection
3
Main Index
3
Section 3 Index
5
24
SECTION 4 • INSTALLATION
TABLE OF CONTENTS
SECTION 4 • INSTALLATION.....................................................................................................................26
GENERAL............................................................................................................................................ 26
MOUNTING .........................................................................................................................................26
CONNECTIONS ..................................................................................................................................29
DVR2000E Terminations................................................................................................................ 29
Generator Voltage Sensing Inputs................................................................................................. 30
Phase B Line Current Sensing Input .............................................................................................30
Raise and Lower Contact Inputs ...................................................................................................30
Var/Power Factor Control Contact Input ........................................................................................30
Parallel Generator Compensation .................................................................................................30
Analog (Auxiliary) Adjust ...............................................................................................................30
Power Supply Inputs...................................................................................................................... 30
Chassis Ground.............................................................................................................................31
Power (Field) Output...................................................................................................................... 31
Relay Output..................................................................................................................................31
Communication Port ...................................................................................................................... 31
DVR2000E Connections for Typical Applications...........................................................................32
PRELIMINARY SETUP........................................................................................................................ 37
ADJUSTMENTS ..................................................................................................................................37
ection
S
4
Figures
Figure 4-1. DVR2000E Dimensions............................................................................................................ 27
Figure 4-2. Cutout and Drilling Dimensions................................................................................................ 28
Figure 4-3. DVR2000E Rear Panel Terminals ............................................................................................29
Figure 4-4. Communication Port Pin Assignments .....................................................................................31
Figure 4-5. Personal Computer to DVR2000E Connections....................................................................... 32
Figure 4-6. Typical Connections with ABC Rotation and Three-Phase Sensing......................................... 33
Figure 4-7. Typical Connections with ABC Rotation and Single-Phase Sensing ........................................34
Figure 4-8. Typical Connections to a Single-Phase Generator ...................................................................35
Figure 4-9. Cross-Current (Reactive Differential) Connections for Two Generators ...................................36
Figure 4-10. Cross-Current (Reactive Differential) Connections for Three or More Generators.................36
Tables
Table 4-1. Generator Voltage Sensing Terminals........................................................................................30
Table 4-2. Communication Port Pin Functions............................................................................................31
Main Index
3
25
S
ection
4
SECTION 4 • INSTALLATION
27
3
Main Index
5
Section 4 Index
GENERAL
The DVR2000E is delivered in a sturdy carton to prevent shipping damage. Upon receipt, check the part number against the requisition and packaging list for agreement. Inspect for damage, and if there is evidence of such, immediately le a claim with the carrier and notify your sales representative or a sales representative at Marathon Electric.
If the unit is not installed immediately, store it in the original shipping package in a moisture and dust free environment.
MOUNTING
The DVR2000E is normally located in the generator conduit box. It is designed for behind the panel mounting and requires a cutout for front panel viewing and access. Mounting hardware consists of six customer supplied, #12 thread-forming screws that pass through mounting holes in the conduit box and thread into the plastic shell of the DVR2000E. The unit must be mounted where the ambient temperature does not exceed the allowable environmental conditions called out in Section 1, General Information, Specications. DVR2000E package dimensions are shown in Figure 4-1. Cutout and drilling dimensions are shown in Figure 4-2.
S
ection
4
Main Index
3
Section 4 Index
5
26
Loading...
+ 65 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use