Testing A 3 Phase Distribution System - Martindale Electric PC15250 Mk2 Instruction Manual

Connect the L1, L2 and L3 test probes respectively to the L1, L2 and
L3 phases of the voltage source.
The PC15250 must indicate as shown below.
L1 L2
PHASE
THREE LIT: CORRECT
ONE LIT: THAT PHASE FAULTY
L1
L2
L3
PHASE SEQUENCE
Do not use the unit if the unit does not give the correct indications
above.
During this verification emphasis should also be placed upon the
flexing of the individual cables along their length, and particularly at
the entry points to the hand held elements, to confirm that the cable/s
have not fractured.

3.4 Testing a 3 Phase Distribution System

Take all required safety precautions when connecting the test probes
to the 3-phase electrical distribution system to be tested.
1. The three test probes are marked L1, L2, L3. These relate to the
L1, L2, L3 LED's on the instrument facia.
2. To determine phase presence and phase sequence, connect
the test probes to the phase cables of the 3-phase electrical
distribution system to be tested. Refer to table 2 of section 3.5 to
determine to which cables to connect L1, L2 and L3 (see Note 2).
5
L3
L1
L3
L2
L1, L2 & L3 LED's must illuminate red
Phase Sequence L1 L2 L3 LED must
illuminate red
Phase Sequence LED L1 L3 L2 LED
must be extinguished