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产品名称
NDFA-V variable frequency transformer integrated tester
Affiliate classification
Transformer detection class
Quantity
-
+
Product description
Product parameters
Reference standard: JB/T5356-2002, JB/T5357-2002.
Features:
● Supports detection of CT and PT （protection, metering class 0.2S, TP class） steady state and instantaneous parameters;
● Adopt advanced DC detection principle, the equivalent excitation voltage is up to 30kV;
● Unique one-button all detection and sub-test detection function, more flexible and convenient on-site use;
● Automatically give the inflection point value according to the procedure;
● Automatically give 5% and 10% error curves.
The main parameters:
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Device output
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0～100Vrms，5Arms（20A Peak）
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Equivalent excitation voltage
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30kV
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Excitation measurement accuracy
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≤0.5% (0.2%* Reading +0.3%* Range)
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Secondary resistance
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Range/Precision
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0.1～300Ω / ≤0.5%（0.2%*Reading+0.3%*Range）
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Secondary load
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Range/Precision
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5VA～1000VA / ≤0.5%（0.2%*Reading+0.3%*Range）
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Phase measurement
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Precision / Resolution
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±4min/0.1min
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Ratio difference measurement
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Range/Precision
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1-10000 / ≤0.05%
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PT ratio
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Range/Precision
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1-10000 / ≤0.5%
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CT ratio
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Range/Precision
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1-50000 / ≤0.5%
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Working power
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AC220V±10% /50Hz
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Dimensions
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410mm×250mm×300mm
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Weight
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About 8Kg
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Key words
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NDPCT-II type transformer field calibration device
NDFA-III transformer volt-ampere characteristic tester
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