TEP

TEP

The trolley measures track geometry as well as railway and
tramway rail head profiles and records results of track condition visual inspections.
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Laser Measurement Systems

Laser Measurement Systems

The measured wheel profile parameters include the entire wheel tread profile, flange height Sh, flange width Sw, slope qR, wheel diameter D, and back-to-back distance Az.
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TEE

TEE

The trolley measures track and turnout geometry as
well as records results of track condition visual inspections.
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Wheel flats and out of roundness wheel

Wheel flats and out of roundness wheel

Automatic measurement system makes it possible to classify the wheel tread surface condition by detecting wheel flats and out of round wheels.
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iTEC

iTEC

iTEC measures track geometry and record results of track condition. A new method for measuring horizontal and vertical irregularities enables the obtainment of highly repeatable measurement results.
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Track measurement

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Trolley for Track Geometry with Laser Cameras: TEP

Trolley for Track Geometry with Laser Cameras: TEP

The trolley measures track geometry as well as railway and tramway rail head profiles and records results of track condition visual inspections. The trolley is easy to use and has a modular design enabling its transport by one person and fixing on a track in less than 5 minutes. In addition, the possibility of using the trolley on any track gauge significantly increases work productivity.   

The TEP trolley has the entire functionality of the TEC trolley. In addition, equipped with laser measurement head, the TEP trolley enables: 
  •  measurements and recording of rail profiles with a measurement increment of 0.5 m,
  •  overview of profiles during measurements,
  •  rail profile measurements with an accuracy of ±0.3 mm
 The trolley is available in two versions, i.e. with one (TEP2.1) or two (TEP2.2) laser probes for rail profile measurements. The trolley can be easily and quickly (weight ca. 30 kg) removed from a track to allow the safe passage of trains. Measurements can be instantly resumed without calibration or zeroing.

The TEP trolley meets the requirements of the EN 13848-4 standard. Measurement results generated by the trolley are consistent with the requirements of the Polish Railway Lines (PKP PLK).

The trolley is provided with a colourful backlit display and a comfortable keyboard (typical of other GRAW products). Measurement results and information about exceedings of allowed values are perfectly visible even at night. Dedicated keys of typical defects facilitate the recording and annotation of cracks in welds or rails, missing bolts, sleepers requiring replacement, etc.


The trolley control panel can be removed, facilitating the overview of results after the completion of measurements. The transfer of data to a PC is performed via a USB Pendrive.


Screenshot of the PC measurement data analysis and reporting software delivered with the trolley
 

The trolley is supplied with the GeoTEC System software (for PCs) enabling, among other things, the graphic presentation and comparison of measurement results as well as the printing of measurement reports or calculating typical track quality factors. Measurement results are also available in the tabular form containing track defect locations. Measurement data can be exported in MS Word, MS Excel and PDF formats.

In addition, the software enables the saving of measured profiles in the DXF format, comparing measured profiles with model profiles, automatic sizing and printing of rail profile-related reports.
 

Specifications

Measured parameters Track gauge, cant, vertical irregularities, horizontal irregularities, horizontal and vertical rail head wear
Measurement increment 0.5 m; 0.25 m
Ranges Track gauge: -15 ÷ +50 mm of the nominal value
Cant: ±200 mm
Vertical irregularities: ±2 mm
Horizontal irregularities: ±5 mm
Rail profile: full rail profile
Accuracy Track gauge: from ±0.5 mm
Cant: ±1.5 mm
Vertical irregularities: ±0.2 mm
Horizontal irregularities: ±0.2 mm
Rail profile: ±0.3 mm
Operating conditions Temperature: -20 ÷45 °C
Humidity: 15 ÷ 85%, no condensation
Memory capacity 1 400 km (TEP2.2) or 2 800 km (TEP2.1)
Weight 30 kg
Functionality Trolley records the measurement route using the on-board GPS receiver
Display legible even in direct sunlight, as well as in the tunnel; visual signalling of exceedings
Transferring of the measurement data to the PC via a USB Pendrive
Software for printing measurement reports, archiving and comparing measurement results
Profile measurement technology Non-contact optical measurement method
Rail types Rails: Vignoles type, grooved, turnout elements
Continuous operation Replaceable batteries making continuous operation possible (about 3 hours with one set of batteries)
Availability The trolley is available for all track gauges, e.g.: 914, 1000, 1067, 1435, 1520, 1524, 1600, 1668, 1676 mm
Calculated parameters Track twist
Horizontal and vertical irregularities on a chord of up to 20 m
Vertical and horizontal rail profile wear
Groove width and depth (for grooved rails)
Comparison of rail profile with the nominal one
Data formats PDF, MS Word, MS Excel, DXF

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