SIEMENS
SINAMICS G180
Introduction
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Siemens D 18.1 · 2014
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Overview
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The leading expert in the field of explosion-proof drives
LOHER Motors & Drives has been a leading supplier of ex-
plosion-proof drives since 1960 and has since built an excellent
reputation around the world as a recognized expert in the field.
We are always 100 % reliable when it comes to designing the
key explosion-proof features of drive systems. We examine
every single element of the entire drive package.
Our frequency converters are specially designed for operation
with explosion-proof motors and are certified for EEx n, EEx e
and EEx d types of protection according to ATEX.
The motors are protected thermally by temperature sensors
which are evaluated directly in the converter. The PTC thermistor
input (with ATEX certification) on the converter makes any further
accessories such as main contactor or PTC relay completely
unnecessary.
We don't leave our customers on their own to deal
with the "Ex" problem!
We can answer all your questions such as
•
What is the correct converter clock frequency?
•
What is the maximum permissible terminal voltage at the
motor terminal box?
•
How high are the voltage peaks at the motor when long motor
cables are used?
•
What winding insulation does the motor need?
•
Fed-in winding or preformed coil?
•
Should the motor be protected by PTCs and/or Pt100s?
• etc.
We will be glad to document the proper functioning and
quality of your drive!
We use a state-of-the-art test bay to verify and confirm the
proper functioning and quality of each individual converter – and
do this gladly in the presence of the customer by way of an
acceptance test. In addition to visual inspections and function
tests, we can also test and document the output and efficiency
of the overall drive and its line supply behavior. Our test stand is
equipped with loading devices and measuring instruments for
outputs of up to around 6600 kW.
Our quality management is certified in accordance with
DIN
ISO
9001 and is therefore subject to regular stringent quality
audits by independent test institutes.
© Siemens AG 2014