Filtering And Interference Suppression; Admissible Load Current Depending On The Ambient Temperature And The Site Altitude - JUMO 709061/8-01-032 Operating Manual

2.1.2 Filtering and interference suppression

2.1.3 Admissible load current depending
on the ambient temperature and the site altitude
Ambient tem-
perature
V1.04/EN/00561071 [Thyristor Power Switch TYA 201]
To prevent radio-frequency interference, generated with a soft start in phase-
angle operation for example, electrical apparatus and plants must have inter-
ference suppression implemented.
The control electronics of the thyristor power controller comply with the EMC
requirements of EN 61326.
However, electrical modules such as thyristor power controllers do not have
any purpose by themselves. They only serve as a component function within a
plant.
Where applicable, the power controllers's entire load circuit must also have
suitable interference suppression filters fitted by the plant provider.
There are a number of specialist companies that provide appropriate ranges of
interference suppression filters to deal with any interference problems. These
filters are normally supplied as complete modules that are ready to be con-
nected.
Load current in A
Reduction at a temperature of 45 °C:
2 %/kelvin
250
200
150
100
75
50
20
45 50
2 Mounting
70 %
T/°C
60
17