21
Instruction Manual
SVGm
The use of transformers with ratios close to the current to be measured is recommend-
ed.
The correct connection of the current transformers is vital for the
SVGm
static genera-
tors to operate properly. If the phases L1, L2 and L3 are switched in the secondary, the
static generator will not work properly.
The
SVGm
devices have built-in fuse overcurrent protection.
Install external protection according to the type of installation, the facility’s maximum
short-circuit current, the maximum fuse current, and the regulations in force at the
place of installation.
If local regulations require the use of earth leakage protection devices, only DC sensitive
RCD (RCD type B) should be used with
SVGm
. Static generators work internally with DC
currents, and, in case of failure, the DC currents may produce malfunction on type A
RCD devices.
Ensure that the installation of the device in your electric distribution system (TN, VT, IT)
complies with current standards.
Check that there is a neutral in the place where three-phase static generator connections are made
with neutral,
SVGm-4WF-xxxx
.
Do not install various static generators in series one after another in the same instal-
lation, configured to correct the same disturbances. This can produce an overcompen-
sation of the disturbances, which could cause instability in the mains (
)
Figure 7: Do not install various static generators in series�
Summary of Contents for SVGm-3WF-100C-480
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