Transformer Frequency Response Tester (GDRB-II)

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
Operating Temperature: -10...+60degree
Storage Temperature: -20...+70degree
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: 50Ω Or 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