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4
INSTALLATION
Test system conforms to protection class 1. Local installation regulations must be respected
to ensure the safe flow of leakage currents.
WARNING - Operation without an earth connection is forbidden!
WARNING - Switch off EUT power before accessing EUT power IN or OUT
terminals.
The terminals of the three phases CDN 3153-S63.1
are accessible with the
included insulated Allen key.
An external fuse is required with max. 63 A current rating. There are no
built in fuses in the CDN 3153-S63.1.
Two independent ground connections are necessary - one for the test system and one for the
EUT. These must be connected back to the local permanent installation or to a fixed,
permanent ground conductor.
Operate the equipment only in dry surroundings. Any condensation that occurs must be
allowed to evaporate before putting the equipment into operation. Do not exceed the
permissible ambient temperature or humidity levels. Use only officially approved connectors
and accessory items. Take care to have access to all connectors for disconnect them in no
time in case of emergency.
Ensure that a reliable return path for the interference current is provided between the EUT
and the generator. The ground reference plane and the ground connections to the
instruments, as described in the relevant test standards, serve this purpose well.
Since the instrument works, on principle, with two independent power supplies (one for the
coupling network and one for the EUT), the CDN 3163-S62 must be disconnected from both
sources before any modifications to the test rig are undertaken. Besides the mains
connections themselves, certain components also operate at high voltages, which are not
provided with any form of extra protection against being accidentally touched.