EMR LX10.2 Manuale utente
LX10.2
Voltage regulator for generators
Instruction Manual V1.2
Product version V1.1.0.0
Manual V1.2 Page 2 of 20
Warnings And Commissioning information
Revision history
The manual does not cover all technical details of the product. Specifications may be modified by
the manufacturer without notice. For further information, the manufacturer should be contacted.
Manual V1.2 Page 3 of 20
Table of contents
General description
The LX10.2 is designed for use in brushless generators and can be used as a cost effective
universal replacement for a great variety original manufacturers AVR’s.
The LX10.2 can be used for parallel operation with other generators that also control voltage
droop by means of Quadrature Droop Compensation (QDC).
Parallel operation is possible with an additional droop CT, which can be 0.5 or 1A secondary.
Installation, maintenance and adjustment don’t require special application software.
The AVR is protected from the environment by a PUR coating
.
Manual V1.2 Page 4 of 20
Absolute maximum rating
Manual V1.2 Page 5 of 20
Protections
Manual V1.2 Page 6 of 20
Modes of control I
Sensing voltage
Sensing voltage
Generator voltage
Generator voltage
Manual V1.2 Page 7 of 20
Modes of control II
Sensing voltage
Sensing voltage
Sensing voltage
+
Sensing voltage
+
Manual V1.2 Page 8 of 20
Modes of control III
Sensing voltage
Sensing voltage
Max. excitation voltage
(AVR supply voltage x √2 )
Max. excitation voltage
(AVR supply voltage x √2 )
AVR supply
Manual V1.2 Page 9 of 20
Commissioning set up
Commissioning set up
Start (AVR Active / Generator running ! )
Underspeed protection
Done
Threshold underspeed
Underspeed Slowly
Until led on
Setpoint underspeed
Underspeed Very slowly
Until led off
Led not red flickering!
Nominal speed
GM
Note:
It is recommended to turn
the potentiometer a little
further clockwise,
to allow for short
frequency dips.
Indication setpoints
Manual V1.2 Page 10 of 20
Quic reference I
A D ModeMinimum Rfield
ormula
Minimum field resistance
actory settings
Sensing voltage
Underspeed frequency
Underspeed slope
Droop
Sta ility P-action
Sta ility I-action
Max. out
Dipswitch 1
Dipswitch 2
Dipswitch 3
Dipswitch 4
Dipswitch 5
Dipswitch 6
Dipswitch 7
Dipswitch 8
: 400V
: 45Hz
: Trip slope
: 100%
: 50%
: 50 %
: 100 %
: On
: Off
: Off
: On
: Off
: Off
: Off
: Off
Link: 3- 4, EX-EX
AVR field current.
Max. rating: Intermitted 12A < 10s.
Max. rating: ield forcing 20A < 1s.
Max. out Droop Underspeed Stability Voltage
(Page 6)(Page 6)(Page 6)(Page 8)
Underspeed
Coarse
Fine
- +
- +
Range 230V sensing
+/- 185 .. 290V
Range 400V sensing
+/- 315 .. 505V
+ -0% 100%0% 100% - + - +
I-action
(Integral time)
P-action
( roportional gain)
Dipswitch
ON
1234
dip
5678
400V sensing voltage.
Phase loss protection disa led.
Remote adjust ena led.
DI Off On
S-T internally shorted.1
2
3
4
5
6
7
8
Underspeed trip disa led.
Underspeed F/V curve disa led.
Buildup speed 2 sec.
Normal Integral time.
Underspeed trip voltage +/- 27.5% of Unom.
Phase loss protection ena led.
230V sensing voltage.
Underspeed trip ena led.
Buildup speed 5 sec.
Increased Integral time.
Do not place or remove link!
Inputs are for EMRI AFD.
AFD is an option unit
for dual AVR applications.
For more information
see manual AFD.
Underspeed F/V curve ena led.
Underspeed trip voltage +/- 17.5% of Unom.
(Page 5..8)
Trip @
Higher – RPM - Lower
+/- 62Hz +/- 27Hz
Indice
