Active Components

GDRB-Ⅱ Transformer Frequency Response Tester detects transformer winding movements and mechanical failures due to mechanical shock, transportation or short circuits. Detection of these displacements ahead of a dielectric failure can reduce unplanned maintenance costs, and provide the possibility to improve system reliability by preventing outages. Additionally, when damage is discovered, repairs may be targeted to a specific phase winding. GDRB-Ⅱ can detect all level power transformers.

Technical specifications
General
Operating Temperature: -10 .. +60°C
Storage Temperature: -20 .. +70°C
Relative Humidity: 10 .. 90 % non-condensing
Mains Universal: 220±10% (110±10%) VAC, 50 / 60 Hz, 100W
Dimensions Instrument: 32cm x 30cm x 12 cm
Weight Instrument: 20 kg
Automatic interpretation according to Chinese standard DL/T911-2004.
Calibration interval: 3 years

Measurement
Source output: one channel
Source frequency range: 10Hz~10MHz
Source Frequency accuracy: 0.01%
Source impedance: 50Ω
Source amplitude: Max.10Vpeak_peak,user difined
Analog input number: two channels
Input impedance: 50Ωor 1MΩ
Sampling: Max 100MHz per channel
Accuracy: 0.5dB at +20dB~-80dB
Dynamic range: +20dB~-80dB
Protection: against short circuit overload
Measuring Points: max. 3’000, user defined

Data Display and Data export
Plot: Frequency vs. Magnitude, Impedance, Phase
Sweep mode :Scaling Logarithmic or Linear
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