应用案例

Application Of FOTRIC Thermal Camera In Power Transformation Equipment System Inspection

2019-06-04

Transformer Substation Inspection

With the gradual aging of infrastructure of power supply companies, the risk of power outage and continuous low voltage continuously increases. The continuous low voltage means the voltage drop in electric power supply and is named in such way because the low voltage often result in lamp illuminating dimmed. Power supply companies also face the expensive unplanned maintenance, soaring cost and other problems.

Transformer station has: transformer, mutual inductor, isolator switch, circuit breaker, lightning arrester, capacitor, rectifier, insulator, cable clamp, resistor and other equipment.

The infrared thermal imaging technique plays an important role in system inspection, equipment fault diagnosis, safety protection and other aspects. It features with long distance detection, non-contact, accuracy, real-time, rapid, and intuitive thermal image. Moreover, it allows rapid and real-time detection and diagnosis of equipment operation without the need of equipment power-off/shut-down and disassembly and addresses the fault point through analysis of infrared thermal image, to take timely measurements and reduce and avoid sudden equipment accident caused by high temperature and over-heat of power equipment.

 

What Problems Need To Be Solved By Customers

  • Inspection of the high voltage electrical equipment outlet connector and internal diversion circuit connection
  • All kinds of oxidation corrosion and poor contact of conductive joints, wiring pile head and poor connection defects
  • Poor contact of center contact in various high-voltage switches.
  • Poor contact between isolation switch blade and wafer, and between rotating cap and ball head
  • Poor connection between upper and lower ends of high and low-voltage casing of power transformer.
  • Cable clamp heat detection
  • Cable connector detection

 

How To Help Customers To Solve The Problems By Use Of FOTRIC Product And Its Advantages

  • Long distance, non-contact, accurate, real-time, rapid, and intuitive thermal image and other characteristics.
  • FOTRIC has the automatic thermal image naming capability and can name the picture automatically through scanning QR code, thus easing the management.
  • With cloud storage function, FOTRIC user can build its own cloud and upload all data to the cloud, to facilitate management and big data mining.
  • FOTRIC can add 8 spots, 8 boxes and 1 line on the thermal image and measure more locations simultaneously.
  • The pictures taken by Fotric can be used for analysis; and point, box and line can be added freely.
  • With rapid quick report creation function, FOTRIC can produce the report with thermal image inserted directly and send it to the cloud or share it with the person in charge.
  • With temperature and audible alarm capabilities.

 

Application Case Of FOTRIC Products In Transformer Substation Failure Inspection

Oil level of oil reservoir

Oil level of oil reservoir is an important parameter for judging whether the abnormal condition exists in the transformer in operation. The common problems include blockage in oil piping, failure in valve opening, shortage of oil in oil reservoir, false oil level and water accumulated in oil reservoir.

Transformer casing

The heating and oxidation at casing connection end is the basis for judging whether the abnormal condition exists in the transformer. The common problems include increased medium loss, casing oil starvation and poor contact of conducting circuit connectors.

Transformer box/cabinet

The common problems include cabinet eddy current loss and heating. It results mainly from heating of cabinet or connecting screw rod caused by magnetic flux leakage.

CT current transformer

Fault and partial discharge caused by internal aging.

 

PT voltage potential transformer

Fault caused by internal aging and accident defect caused by oil leakage.

Capacitor

Capacitor media loss and poor contact of electric fuse.

Lightning arrester

500KV, serious defects, damp, aging, and oil leakage of internal insulation.

 

Configuration Package

Fotric 225 or 226 equipped with wide angle and telephoto lens is recommended.

 

Other Customers Need To Solve Such Problems

  • Transformer substation, booster station and transmission work area of power grid
  • Power transformation equipment of petrochemical, railway, coal enterprises and so forth.
  • Thermal power plant, hydropower plant and other power plants