|
This type of
instrument is adopted by introduction of foreign technology
and the latest nondestructive examination equipment of
the power transformer internal fault. It is used for confirming
the degree of the deformation of transformer internal
winding which is the important method of the preventative
nondestructive examination. It applies to the power transformer
of 6.3kV-500kV. The whole operating function will be pointed
out in Chinese or simple English on the screen of the
microcomputer. It is made up of a portable computer, a
color printer and the main measurement system. The instrument
can be divided into two types of testing methods by frequency
response and short-circuit impedance.
Range of frequency point: 1-5 kHz
1-100 kHZ 1-500kH 500-1MHz (The special layout)
Precision: Wandering of frequency point Δfni≤2‰fni (The
average value in the frequency domain)
Amplitude resolution: 0.001dB
Irregularity degree of the passband≤0.05dB ((The average
value in the frequency domain)
Weight: 20kg
Experience accumulation: 200 main transformers |
|