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Frequency response analysis method
Linear sweep distribution
Frequency sweep range: 1KHz~2MHz (4000 frequency sweep
points), resolution: 0.25KHz, 0.5KHz, 1KHz
Piecewise sweep distribution
0.5KHz~10KHz (2000 frequency sweep points)
0.5KHz~10KHz (500 frequency sweep points)
10KHz~100KHz (500 frequency sweep points)
100KHz~500KHz (500 frequency sweep points)
500KHz~1000KHz (500frequency sweep points)
User-defined
Frequency sweep range: 10Hz~10MHz (4000 frequency sweep
points at most)
Sweep mode: linear or logarithm, sweep interval and points
can freely set up
Attenuation amplitude measuring range: (-100dB) ~(+20dB)
Attenuation amplitude measuring accuracy: 0.1dB
Frequency sweep accuracy: 0.01%
Signal input impedance: 1MΩ
Signal output impedance: 50Ω
In-Phase test repetition rate: 99.5%
Input power: 220V±10%, 45~65Hz (AC)
Reactance method
1) AC Impedance measuring range: 0~999.999Ω, error:
0.2% RDG±2D
2) AC voltage measuring range: 0~600V, error: 0.2%
RDG±2D
3) AC current measuring range: 0~120A, error: 0.2%
RDG±2D
4) Active power test: cosφ>0.1, error: 0.5%
RDG±2D; cosφ<0.1, error: 1.0% RDG±2D
5) Reactive power test: 0.2% RDG±2D
6) Frequency measuring range: 45~65Hz,
error: <0.1% RDG
7) Working condition: 0~50℃, 85% (R.H.)
8) Weight: 10KG
Power transformer winding deformation tester is designed according to DLT911-2004 and DLT1093-2008, it combines frequency response analysis method and reactance method to test the winding deformation of power transformer 6KV above.
