Power Electronics SD750K, Hardware And Installation Manual

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SD750K POWER ELECTRONICS
52
POWER CONNECTION
EN
EMC installation requirements
Introduction
The EMC European Directive defines electromagnetic compatibility as the capability of an apparatus,
an industrial plant, or a system to work satisfactorily in the electromagnetic environment without at the
same time causing electromagnetic disturbances in the apparatus, industrial plant or systems present
in the same environment.
The Electromagnetic Compatibility (EMC) depends on two main characteristics of the equipment:
Electromagnetic Interference (EMI) and Electromagnetic Susceptibility (EMS). The EMC standards
aims to ensure that all the electrical equipment that could operate simultaneously in the same
environment are compatible. This means that the interference immunity of all the devices is greater
than the interference emission of all the devices within the same environment.
The EMC requirements for Power Drive System (PDS) are defined in IEC/EN 61800-3 standard that is
included in the Declaration of conformity CE enclosed. In the European Union, EN61800-3 standard
takes priority over all generic standards. The PDS in the context of this standard comprises the drive
converter, the motor cables and the motor. Therefore, the installer as the ultimate responsible must
follow the installation instructions given within this manual.
Depending on the location of the drive, the standards define four categories distributed in two
environments.
•
First Environment: Domestic installations. It also includes premises directly connected to a
low-voltage power supply network without an intermediate transformer which supplies
buildings used for domestic purposes such as shopping malls, cinemas, hospitals…
•
Second environment : Industrial installations. Second Environment includes all plants other
than those directly connected to the public low-voltage network which supplies buildings used
for domestic purposes, e.g. factories and those other premises supplied by their own
dedicated transformer.