Mô tả
Description
Digital ratiometer for transformers
The DTR 8510 is a portable digital ratiometer for testing power, voltage and current transformers.
When connected to an uncoupled transformer, the DTR 8510 accurately measures the primary-to-secondary transformation ratio, while also indicating the polarity and excitation current.
The DTR 8510 is totally automatic and uses a test method which complies with the ANSI/IEEE standard. Users are not required to perform any calibration or balancing.
During each measurement, the DTR 8510 self-calibrates automatically and checks:
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Open circuits, windings, connections and cut-off circuits,
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Short-circuits (excessive value of excitation current),
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Incorrect connection of the test cables,
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Polarity reversals.
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The measurements are displayed quickly and accurately.
Functions - Specifications
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Transformation ratio: from 0.8000:1 to 8,000:1 (power and voltage transformers) and from 0.8000 to 1,000.0 (current transformers) - Autorange function,
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Testing by excitation of the primary and reading of the secondary, in order to guarantee user safety,
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Display of alerts in the event of incorrect connection, reversed polarityn open circuits and short-circuits,
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Digital display – display of the ratios, winding directions - % deviation in relation to the rated values and excitation current. The bargraph indicates the progression of self-calibration and measurement,
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Storage of up to 10,000 measurement results in internal memory,
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USB connection and DataView PC software supplied as standard to set up the instrument, download and analyse the measurements and generate test reports.
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Power supply by NiMH rechargeable battery with external charger (battery life of 10 hours in continuous operation)
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IP53 protection
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IEC 61010 50V CAT IV safety
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Dimensions: 272 x 248 x 130 mm / 3.7 kg
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