<s>
A	O
dispatcher	B-Application
training	I-Application
simulator	I-Application
(	O
DTS	O
)	O
,	O
also	O
known	O
as	O
an	O
operator	B-Application
training	I-Application
simulator	I-Application
(	O
OTS	O
)	O
,	O
is	O
a	O
computer-based	O
training	O
system	O
for	O
operators	O
(	O
known	O
as	O
dispatchers	O
)	O
of	O
electrical	O
power	O
grids	O
.	O
</s>
<s>
The	O
EMS	O
enables	O
remote	O
operation	O
of	O
electrical	O
equipment	O
,	O
such	O
as	O
circuit	O
breakers	O
or	O
transformers	B-Algorithm
.	O
</s>
<s>
The	O
user	B-Application
interface	I-Application
typically	O
displays	O
the	O
state	O
of	O
the	O
transmission	O
system	O
on	O
computerised	O
one-line	B-Application
diagrams	I-Application
with	O
controllable	O
points	O
for	O
simulated	O
operation	O
of	O
plant	O
such	O
as	O
circuit	O
breakers	O
or	O
transformer	B-Algorithm
tap-changers	O
.	O
</s>
<s>
The	O
model	O
will	O
normally	O
extend	O
to	O
the	O
limits	O
of	O
the	O
system	O
operator	O
's	O
region	O
of	O
interest	O
,	O
and	O
include	O
representations	O
of	O
plant	O
such	O
as	O
lines	O
,	O
generators	O
,	O
transformers	B-Algorithm
,	O
circuit	O
breakers	O
and	O
capacitors	O
.	O
</s>
