30
Digital Transformer Ratiometer DTR
®
Model 8510
1.
Connect the Primary (H) and Secondary (X) cables to the appropri
-
ate connectors on the DTR
®
8510 and the transformer under test
(see Fig. 5-2).
2.
Press
TEST
button. The test will run continuity first and then run the
ratio test.
Figure 5-3
WARNING:
It is important to make sure the Primary (H) and the
Secondary (X) cables are connected properly
BEFORE
running the
test. This is especially true for the high turn-ratio transformers since
dangerous high voltage may appear on the DTR
®
8510 terminals.
NOTE:
• Continuity checks for the integrity of the cable connections only.
It does not check for H/X reverse polarity.
If the continuity for the Primary connections is within specified
limits, the display shows ---- or equivalent to a Closed Switch.
If the continuity for the Primary connections is outside the speci
-
fied limits, the display shows --/-- or equivalent to an Open
Switch.
• During the Ratio test, the instrument will check for H/X reverse
polarity, short (excessive current) etc. before conducting Ratio
test.
In this example, the display will appear as shown below.
Figure 5-4
www.
ShopAEMC
.com
Shop for AEMC products online at:
1.877.766.5412