Chauvin Arnoux DTR 8510 Bedienungsanleitung Seite 60

1. Connect the Primary (H) and Secondary (X) cables to the appropriate connectors on the DTR
(see Fig. 5-2).
2. Press TEST button. The test will run continuity first and then run the ratio test.
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.
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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 specified 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.
- Typical Connection
H
RED
H
BLACK
X
BLACK
- Alternate Connection
H
RED
X
BLACK
X
RED
H
BLACK
RATIO 2.767 : 1
PRIMARY
H
RED
19920 : 7200CT
X
RED
H
BLACK
RATIO 1.383 : 1
PRIMARY
H
RED
H
BLACK
Figure 5-2
Figure 5-3
60
SECONDARY
X
RED
X
BLACK
SECONDARY
19920 : 7200CT
X
RED
X
BLACK
8510 and the transformer under test
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