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Topic Title: Voltage transformer calibration errors Topic Summary: VT Errors for settlement metering Created On: 14 December 2011 09:20 AM Status: Post and Reply |
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 14 December 2011 09:20 AM
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I wonder if anyone can help me
I am trying to obtain generic errors for a metering 33Kv metering VT to satisfy the meter operator. The original errors have been mislaid by the manufacturers and I require a copy of typical errors for a similar VT Details are below:- Manufacturer = AEG Type EY36TAW1 Burden 60Va Class 0.5 to IEC standard 186 Ratio 33000/110V If someone can help with this query than that would be great Thanks and Merry Xmas all Viv. |
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14 December 2011 12:27 PM
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A class 0.5 VT should have the voltage within +/- 1% and the phase within +/- 40'
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14 December 2011 12:52 PM
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My Areva NPAG manual gives a class 0.5 VT as +/- 0.5% accuracy with a +/- 20 minute displacement for a burden of between 0.25 and 1.0 at 0.8pf.
I believe IEC 60044 is the series for instrumentation transformers with part 2 being for inductive voltage transformers and part 5 for capacitive voltage transformers Kind regards Donald Lane |
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16 December 2011 10:45 AM
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Thanks Arthur
Merry Xmas |
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16 December 2011 10:46 AM
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Many thanks Donald
Merry Xmas Viv |
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Voltage transformer calibration errors
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