Phase Sequence Testing - Eaton Magnefix MD4 User Manual

4.8.3

Phase sequence testing

In order to carry out phase sequence testing, the cable is to
be connected inductively to suitable measuring equipment
(e.g. MUCO phase sequence testing unit).
R
EMARK
The earthing caps with extended connection pins
are used.
Procedure:
1. Isolate the installation.
2. Provide earthing using the earthing caps with
extended connection pins and the earthing spider.
R
EMARK
Do not remove the short-circuit strip nor the
earthing spider.
3. For each phase, place the induction coil of the testing
unit around the extended connection pin, between the
earthing cap and the short-circuit strip.
4. Perform the measurement.
5. Remove all measurement connections.
(MUCO) phase sequence testing unit
2.
Magnefix MD4
991.184 G01 03 95