Schaffner Ecosine max FN 3470, Руководство пользователя и инструкция по установке

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Schaffner Group
User and Installation Manual
Ecosine
max
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5 Filter appearance and elements
Ecosine max passive harmonic filters are available in IP00 open frame, and all designed for floor-
mounted installation. The compact design makes it an optimized open frame for cabinet integration.
The filter is all-wired with 3 inputs and 3 outputs, which can be easily installed into standard and cus-
tomized cabinet.
The appearance of the filters can be differentiated depending whether the load choke is present or not
in the filter.
5.1 Mechanical design of FN3470/80/72/82 (with load choke present)
The general design of FN3470/80/72/82, filters with load choke and circuit breaker module (E0XXSXX)
is shown in Figure 18.
On the right side of the frame, there is trap choke L
t
sitting on top of the line choke L
i
, and the load
choke L
o
is next to them. The trap capacitor C
t
, and circuit breaker or trap disconnect jumper is
mounted on the left side of the frame.
Switch module, namely a circuit breaker, is required in high power passive harmonic filters for safety
reasons. The short circuit current of high power passive harmonic filters can go beyond 10’000A, how-
ever the capacitors are only protected with failure current of max. 10’000A. Therefore, an external
switch able to disconnect the capacitors automatically under overloading and short circuit conditions is
mandatory to ensure the installation safety at all operation situations. When the filter is overloaded, de-
pending on the overcurrent value, circuit breaker will release after a certain time. The faster and higher
the current rise is, the faster will the circuit breaker release. The characteristics curve of current and
tripping time and more information can be found in the circuit breaker datasheet
i
. In case the circuit
breaker is released, the connected load must be shut down immediately and remains off until the fail-
ure is investigated, and problem is solved. Once everything solved and source of issue removed, the
circuit breaker can be switched on again to re-start the system.
i
Online datasheet and documentation for circuit breaker 250A , 300A , 400A and 500A