EUVI-1 UV imager is a novel corona discharge instrument based on photomultiplier tube (PMT) and ultraviolet technology, which has excellent functions of distance detection for corona discharge in determined region from surface of high voltage equipments and corona characteristics data analysis. It is mainly applied to detect the incipient fault and performance decreasing of high voltage polymer insulators, high voltage cable and other high voltage equipments for saving the great maintenance and repair cost of the high voltage items, minimizing the nonscheduled electricity failure, improving the power distribution reliability, which will bring huge economic benefits as well as social benefits. 

 

Main Technical Parameters  Model  EUVI-1 
 Name  Ultraviolet Imager(Ultraviolet Corona Observation Instrument) 
 Item  Value  Unit
 Sensitivity  >20  mA/W
 Brightness gain  70~80  dB
 Brightness output  3~8  cd/m2
 Equivalent background illumination  <0.25  μlx
 Optical resolution  >30  lp/mm
 Screen resolution  >36  lp/mm
 Image size  240.5  mm2
 Spectral response  200~900  nm
 Field of View  &asymp; 10  0
 Relative aperture  5.6~22  
 Vision adjustable range  &plusmn;5  0
 Measure distance  0.6~100(&infin;)  m
 Rated voltage  2.2~3.4  V(2*AA battery)
 Rated current  <20  mA
 Ambient temp.  -45~+45 Celsius (2 hours)
 Storage temp.  -55~+65 Celsius (2 hours)
 Storage temp.  +5~+35 Celsius (long term)
 Relative humidity  95  %
 Impact resistance  75  g
 Vibration withstand  1.25  mm
 MTTF  2000  h
 Dimensions  248*70*180  mm
 Weight  1.15  KG