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The results of application DayCor camera
for
Railways of Russia
Michael Vikhrov JSC «PANATEST»
UGM 2005
According the results of testings executed «NIIEFA-ENERGO»
(S-Petersburg, Russia, October 2004),
Mr. Y. I. Plotnikov
Mr. V. P. Gerasimov
Mr.Y.M. Fedorishin
Mr. V.F. Grachev
IR & UV Methods of diagnostic:
Thermal method of diagnostic:
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The thermal method of testing is
able to find the problem with connectors of wires only, but
is not able to find out the condition of insulators.
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| Thermo Cameras NEC (TH7102WX with interface
IEEE1394 FireWire) are installed on the diagnostic railways cars. |
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UV method of diagnostic:
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OFIL's DayCor Camera installed on
the diagnostic railways car.
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Corona emission from rail insulator
Tower no.82
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Example: insulators defects on 27.5 kV power line
The Conditions of testings:
Date: 20 October 2004
Time: 10-12 AM
Place of testings: The Gorkovskaya railway (Russia)
Voltage: 27,5 kV (AC)
Ambient: +7 C, rain
Velocity of railway car: 35-45 km/h
| Constituents of contact system |
Quantity of Failures % |
| |
data for DC |
data for AC |
| Contact-wire line |
38 (12) |
22 (8) |
| Another wire |
18 (13) |
26 (7) |
Fixing devices and construction
|
9 (4) |
7 (4) |
| Insulators |
9 (6) |
29 (21) |
Others
|
26 |
26 |
| Sum total |
100 (35) |
100 (40) |
NOTE:
1) Russian railways use DC 3kV and AC 27,5 kV.
2) The meanings in brackets is damages thru staff's fault.
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Interval recording of corona phenomenoa on
railway insulators
Digital processing results varies according
to the brightness level of the UV signal.
Conclusions:
- The results of testings have confirmed the efficiency DayCor camera
for finding the defects of insulators by railway car motion with
velocity 45 km/h and above.
- Together with thermal method of diagnostics, DayCor cameras allow
to test the wires, insulators and armature of the contact grid at
complex.
- According to results of testings had been decided to install
cameras DayCor for diagnostic railway cars for all railways of Russia
at period 2005-2007.
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