Putting Into Service - Siemens 7SG164 Ohmega 400 Series Manual

operations occur correctly. If possible, using a P.C. or laptop computer loaded with Reydisp Evolution software,
check the current and voltage waveforms and relay operations. For phase-earth faults, check that correct
tripping as per scheme is obtained i.e. either single pole tripping or three pole tripping with the associated control
operations.

6 Putting Into Service

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Remove the external test connections and heavy duty test plugs
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Check that the current and voltage transformer are wired for normal operation
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Check that all a.c. and d.c. supply links and fuses are inserted
•
Check that the earth links are inserted
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Check that all the relay settings are as recommended.
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Test and reset the LED indication display
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Replace the relay cover
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Insert the trip link
©2011 Siemens Protection Devices Limited
7SG164 Ohmega 400 Series Commissioning
Chapter 9 Page 6 of 6