OTLM device

OTLM device simultaneously measures conductor temperature, sag (icing), ambient temperature, humidity and current of power lines. Measurements are carried out directly at the OTLM fixing points on the OHL phase conductor and are transmitted to the OTLM Centre via available communication channels with the exact GPS time stamp. The current transformer (energy harvesting) and the supply unit provide the power supply for the operation without any other outside source of power supply (battery as an additional option). Housing is made of fire-resistant composite material for heavy ambient conditions. In case of communication failure data is stored locally in OTLM. Installation is simple and fast. The device can be installed on a conductor with a diameter from 15,00 mm and up to 45,00 mm.

 

Architecture:

  • Measurement unit (conductor temperature conductor current, sag – clearance, icing)
  • CPU and communication with mobile, WiFi, optics (OPGW)
  • Power supply with current transformer
  • Housing with fixing system

 

Technical data:

  • Outside diameter (w x h): 300 x 296 mm
  • Length: 315 mm
  • Weight: approx. 11.0 kg
  • Diameter of a conductor: from 15,0 mm to 45,0 mm
  • Min. operational current in conductor: 65 A
  • Power Supply (current transformer): from 65 A
  • Frequency: 50 Hz (60 Hz)
  • Operating ambient temperature range: from – 40 ºC to +85°C

Conductor temperature measurement:

  • Range: from -40°C to +125°C
  • Resolution: 0.5°C
  • Deviation: ±2.0°C

 

Conductor current measurement:

  • Range: from 65 A
  • Resolution: 1 A

 

Housing and other benefits:

  • Housing – fire resistant composite material
  • GPS position and UTC clock
  • Notification triggered by ice or temperature
  • Low maintenance
  • Remote diagnostic

Tested in accordance with:

  • IEC 60068-2-1
  • IEC 60068-2-2
  • IEC 60068-2-6
  • IEC 60068-2-14
  • IEC 60068-2-30
  • IEC 60068-2-31
  • IEC 60068-2-68
  • IEC 60068-3-1
  • IEC 60529
  • IEC 61000-4-2
  • IEC 61000-4-3
  • IEC 61000-4-4
  • IEC 61000-4-5
  • IEC 61000-4-6
  • IEC 61000-4-8
  • IEC 61000-4-9
  • IEC 61000-4-10
  • IEC 61000-4-20
  • MIL-STD 810G – Method 509.5
  • MIL-STD 810G – Method 521.3
  • EN 303 446-2
  • EN 60950-1
  • EN 60950-22

You might be interested in:

OTLM weather station
OTLM Center software


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