Asco Froment 8800 Series, Руководство пользователя

Страница: 25 / 114

Introducing Froment Load Banks
1 - 15
Using Multiple Load Banks
Froment’s Sigma control system allows up to fourteen load banks to be interconnected and
controlled from a single terminal as if they were a single unit. This means that multiple load
banks can be combined to match particularly large generating sets, or that a combination
of resistive, capacitive or inductive loads can be mixed for special purpose or one-off tests.
Figure 1-11
Connecting multiple load banks
One example of the use of multiple load banks might be where a purely resistive load bank
is to be permanently installed for ongoing routine maintenance engine tests. A load bank
with inductive elements could be added for a short period so that commissioning and
acceptance tests can be carried out.
Note: When multiple
load banks of different
capacities are used the
load applied is shared
proportionally depend-
ing on the ratio of the
load banks’ capacity.
The cable sizes for the
Supply-on-Test must
take this into account.
Total control cable length = 1km
Sigma interface cable Load Bank
1
Load Bank
2
Load Bank
n
Remote
control
unit
Supply
under
test
In Out
In Out
In
















 
 
 
 
 
 
 
 
 






© NJ Froment & Co. Ltd. This document may not be copied
or disclosed in whole or part without prior written authority.

 



 

 






   
   