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DBHG-D High Precision Portable CT PT Analyzer

DBHG-D High Precision Portable CT/PT Analyzer It is mainly used for field testing of P class CT and PT. The test items mainly include excitation characteristic, transformation ratio, polarity, degauss, 5% and 10% error curves, secondary circuit check, withstand test of power frequency alternating current and secondary load. Adopting LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to dump data, with simple and convenient operation.

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Description

Main Functions

Current Transformer (CT)		Voltage Transformer (PT)
Magnetization curve		Excitation characteristic test
Transformation ratio test		Transformation ratio test
Polarity		Polarity
5% and 10% error curve		Withstand test of power frequency alternating current
Current Injecting		Degauss
Degauss		Calculation of knee point value
Withstand test of power frequency alternating current		Actual secondary load test
Automatic calculation of excitation knee point value		Resistance test
Actual secondary load test
Resistance test

Technical Specifications
Accuracy		0.2%, 0.5%
Power supply		AC 220V±10% or AC 110V±10%
Excitation voltage output		0-2500Vrms
Excitation current output		0-5Arms (20A peak-value)
Large current output		0-600A
Accuracy		≤0.5% (0.2%RD+0.3%RG)
Secondary winding DC resistance measurement		Range: 0.1-300Ω Accuracy: ≤0.5% (0.2%RD+0.3%RG)
Secondary actual load measurement		Range: 5VA-1000VA Accuracy:≤0.5% (0.2%RD+0.3%RG)±0.1VA
CT/PT phase error measurement		Accuracy: ±4min Resolution: 0.01min
CT ratio error measurement		Range: ≤25000A/5A(5000A/1A) Accuracy: ≤0.5%
PT ratio error measurement		Range: 1-500KV Accuracy: ≤0.5%

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