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Surge Testing AWA Unit
12/7/2009 | 71-026 V2
PP24
34
8)
Ground the product :
This product is grounded through the grounding conductor of the
power cord. To avoid electrical shock, plug the power cord into a properly
wired/grounded receptacle before connecting the product test leads.
a.
Danger from loss of ground – Upon loss of the protective ground
connection, all accessible conductive parts, including knobs and controls
that may appear to be insulated, can cause an electric shock!
9)
This instrument is
NOT
waterproof or sealed against water entry.
10)
The unit is for indoor use. If used outdoors, the unit must be protected from rain, snow
and other contaminants.
Surge Testing with the AWA and PP24
Surge testing a three phase AC induction motor with the AWA and a PP24 is done one lead at
a time. The PP24’s test leads are arranged as follows:
For testing Lead 1 / Phase A:
−
Connect the single red test lead to the motor’s Phase A lead
−
Connect one of the black test leads to the motor’s Phase B lead
−
Connect a second black test lead to the motor’s Phase C lead
−
Connect the third black test lead to the motor’s frame
−
Perform the surge test with the PP24 (to be described in detail below)
−
Save the waveform in a record under Lead 1 (again, to be described in detail below)
For testing Lead 2 / Phase B
−
Connect the single red test lead to the motor’s Phase B lead
−
Connect one black test lead to the motor’s Phase A lead
−
Connect one black test lead to the motor’s Phase C lead
−
Leave the third black test lead to the motor’s frame
−
Perform the surge test with the PP24
−
Save the waveform in a record under Lead 2
For testing Lead 3 / Phase C
−
Connect the single red test lead to the motor’s Phase C lead
−
Connect one black test lead to the motor’s Phase A lead
−
Connect one black test lead to the motor’s Phase B lead
−
Leave the third black test lead to the motor’s frame
−
Perform the surge test with the PP24
−
Save the waveform in a record under Lead 3
Fig 5-1: Lead connections