Mosa GE 7000 Manual De Uso página 64

REV.1-09/05
DIFFERENTIAL SWITCH
The differential switch or differential relay guarantee
protection against indirect contacts due to malfunction
currents towards the ground. When the device detects a
malfunction current that is higher than the nominal current
or the set current, it intervenes
by cutting off power to the
circuit connected.
In the case of an intervention
by the differential switch, check that there are no
sheathing defects in the installation: connection cables,
sockets and plugs, utilities connected.
+ Before each work session, check the operation of the
differential protection device by pressing the test key. The
electricity-generating group must be in operation, and the
lever on the differential switch must be in the ON position.
THERMIC PROTECTION
Generally present to protect against overloads on an
individual power socket c.a.
When the nominal operating current has been exceeded,
the protection device intervenes by cutting off power to
the socket.
The intervention of the protection device against
overloads is not instantaneous, but follows a current
overload/time outline; the greater the overload the less
the intervention.
In case of an intervention, check that the current
absorbed by the load does not exceed the protection's
nominal operating current.
Allow the protection to cool off for a few minutes before
resetting by pressing the central pole.
ON OFF
ATTENTION
!
Do not keep the central pole on the thermic
protection forcefully pressed to prevent its
intervention.
Using the generator
RESET
A
1 a 0
tx10
1 b 0
x1
1 c 0
I°
x10
1 d 0
T5.9
T5.3
RESET
T5.5 T5.4
A M
tx10 tx1
x1
RESET I° x0.1I° TEST
x10
1 1.5 0.2 0.3
0.5 2 0.1 0.4
T5.2
0.25 2.5 ON TRIP 0.02 0.5
I° (A) t (s)
T5.6 T5.7
T5.8
PRESS TO
RESET
USAGE WITH EAS AUTOMATIC START-UP PANEL
The electricity-generating group in combination with the
EAS automatic start-up panel forms a unit for distributing
electrical energy within a few seconds of a power failure
from the commercial electrical power line.
Below is some general operating information; refer to
M
the automatic panel's specific manual for details on
tx1
x0.1I°
installation, command, control and signalling operations.
T5.10
 Perform connections on the installation in safety
conditions. Position the automatic panel in RESET
or LOCKED mode.
T5.1
 Carry out the first start-up in MANUAL mode.
Check that the generator's LOCAL START / REMOTE
START switch (I6) is in the REMOTE position.
Check that the generator switches are enabled (input
lever in upward position).
Position the EAS panel in manual mode by pressing
MAN. key, and only after having checked that there
are no dangerous situations, press the START key to
start the electricity-generating group.
 During the operation of the generator, all controls and
signals from both the automatic panel and group are
enabled; it is therefore possible to control its operation
from both positions.
In case of an alarm with a shutdown of the motor
(low pressure, high temperature, etc.), the automatic
panel will indicate the malfunction that has caused
the stoppage, while the generator's front panel will be
disabled and will no longer supply any information.
M
37.
2