6.3.4.4.
Power plant configuration (Several generating sets in parallel)
Without common part and without Normal/Emergency inverter (A632)
This configuration is designed to provide:
Emergency electricity supply to an installation following a grid loss (The grid loss is not controlled by Kerys). Return to the grid
will be achieved by Normal / Emergency switchover by means of a self-driven inverter (not controlled by Kerys).
FORCED OPERATION with a generating set.
Operation in “Effacement Jour de Pointe” (EJP)* mode or other rates.(Information transmitted by dry contacts).
An active power regulation (speed of the generating sets) by parallel lines connected between all the regulation modules.
Regulation
module
Base
module
C
A
N
b
us
E
th
e
rn
et
3PH + N
3PH
M
3PH 3PH
Regulation
module
Base
module
C
A
N
b
us
E
th
e
rn
et
3PH + N
M
3PH
Genset 1
Genset 2
Genset x
Parallel line
(*) the “EJP” (Peak Day Load Shedding) system is specific to the French power grid.
Note 1: In this operating mode there is no reactive power regulation (generating set voltage); the generating sets are static.
Note 2: In an installation of the power station type (several generating sets in parallel) two modes of coupling between generating sets
are possible
•
Coupling
when
stopped.
•
Coupling in normal operation.
Principle of coupling when stopped
- all the generating set power units are switched off,
-
starting of all the generating sets,
- when the speed reaches 1450 rpm, activated excitation command on all the generating sets,
- the voltage generated by each generating set increases gradually and the voltage is therefore the same in all generating
sets,
- the generating sets therefore reach 1500 rpm at 400 V 50 Hz.
At the end of global operation, if the power consumed by the installation does not require the operation of all the generating
sets within the power plant, one or more generating sets will be stopped according to the wattmetric control.
Restarting of the generating set (these generating sets) depends on the load and wattmetric control of the load.
However, if a generating set is reconnected to a busbar already subjected to a load, the “recoupling” is carried out in normal
operation and not when the generating set is stopped.
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Summary of Contents for R570U
Page 1: ...User and maintenance manual for generating sets R570U 33504081501NE_1_1 ...
Page 15: ...Alternator Cabinet Figure 1 3 Examples of identification plates 13 297 ...
Page 18: ...Sockets voltage 208 120V 16 297 ...
Page 125: ...9 Appendix 9 1 Appendix A Engine user and maintenance manual 123 297 ...
Page 126: ...124 297 ...
Page 128: ...126 297 ...
Page 129: ...OPERATOR S MANUAL Generating set and industrial engines 16 liter EMS 2 127 297 ...
Page 159: ...157 297 ...
Page 218: ...216 297 ...
Page 220: ...218 297 ...
Page 222: ...7748681 English 12 2011 220 297 ...
Page 223: ...9 2 Appendix B Alternator user and maintenance manual 221 297 ...
Page 224: ...222 297 ...
Page 226: ...224 297 ...
Page 250: ...www leroy somer com 248 297 ...
Page 261: ...Installation and maintenance R250 A V R 4067 en 2009 05 b LEROY SOMER 11 259 297 ...
Page 281: ...2012 03 e LEROY SOMER 19 Installation and maintenance R 450 AVRs 4531 en 279 297 ...
Page 282: ...www leroy somer com 280 297 ...