ELLEX ES47 Series, Руководство по эксплуатации, Страница: 11 / 20

BA-en-2075-2111_ES47
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3.5 Maximum active bar length and length of the high voltage cable
Both the lengths of the high voltage cable and of the active bars are

limited. The shielded high voltage cables cause a capacitive load on the
transformer inside the power supply. The maximum loading capacity is a
result of the function of the total active bar length and the total length of all
high voltage cables. Fig. 4 demonstrates this principle for R47 bars.
Example: The maximum permissible total cable length with a 3 meter
active bar length is 7 meters.
3.6 Connecting the supply voltage
Connect the supply voltage via the power supply lead (4, Fig. 1) using an
earthing pin plug (depending on country).
To ensure that no voltage is supplied to the bars when the material web is
at rest, enabling the supply voltage to the power supply via machine con-
tact is recommended. If the material web is at rest, or if the machine is not
in operation, no high voltage is supplied to the bars in this case.
For external security of the power supply the following circuit breaker is
recommended:

Tripping Characteristic 2A / K according to DIN EN 60947-2.
Fig. 4:

Loading capacity
of the Power

Supply as factor of
bar length and
length of high

voltage cable.
Z01
134e
n
5 10 15
6
4
2
Σ
lengths of active bars [m]
permissible
range
Σ
lengths of h.v. cable [m]