Product Features; Description - Chauvin Arnoux DTR 8510 Manual De Instrucciones

2.1. DESCRIPTION

The Digital Transformer Ratiometer DTR
potential and current transformers.
Operation of the DTR 8510 is fully automatic. No user calibration, range selection, hand cranking or tedious balancing is required.
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During each test cycle, the DTR
„ H/X lead reversal
„ Continuity of tested circuits/windings (if configured)
„ Short circuit conditions (high current)
Upon completion of a test cycle, the DTR
„ Turns Ratio: The ratio of the primary to secondary voltage at the transformer terminals due to test excitation.
„ Excitation Current: The RMS excitation current in the H winding due to test excitation during negligible loading of the as-
sociated X winding.
„ Polarity: Indicates the polarity (phase) of X relative to H.
„ Deviation: Indicates the deviation from nameplate ratio in %.
Turns Ratio, Excitation Current, Polarity and Deviation are useful parameters in diagnosing and predicting a variety of faults that
occur in power, potential and current transformers.
The DTR 8510 will display the following messages:
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„ Incorrect Lead Connections
„ H/X Reversal (accidental step-up misconnection)
„ Short (excess excitation current)
„ Open Circuits
„ Circuit Continuity
„ Low Battery
In addition, the DTR 8510 allows the user to store the data in automatic or manual mode after each test eliminating the need to
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write down the test results. Each measurement record is date and time stamped providing complete test information.
The user can also save Nameplate voltages and compare the results as the data is being gathered. The data can later be down-
loaded to a PC and analysed using the DataView
DataView allows full control of the instrument.
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The DTR 8510 utilizes an advanced, low-voltage, step-down measurement technique in which the high voltage "H" wind-
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ings are subjected to test excitation. This results in greater operator safety and the ability to test a much wider array of
transformer types and sizes.

2. PRODUCT FEATURES

8510 is a lightweight, rugged, portable instrument designed for onsite testing of power,
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8510 automatically checks for:
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8510 displays:
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software package which is included with the product.
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