Measurements


Electrical measurements and analysis of power network parameters

At DPS-TEL.com we realize that precise measurement is a guarantee of the efficient operation of the electric network.

We perform final, periodic and diagnostic measurements of electrical installations.

We have measuring tools, thanks to which we can make comprehensive inspections of the installation and precisely locate the damage to the device or cable line.

We take thermal imaging of cabling, electrical switchboards, boards and receiving devices.
We have tools for recording and analyzing the parameters of the power supply network. This type of research lasts 1-2 weeks and ends with a report containing specific conclusions and ways to solve the problem.

The network parameters are analyzed in order to:

  • Battery selection for reactive power compensation,
  • Detection of irregularities in the operation of installations, such as: voltage dips, excessive voltage drops, frequent failures of electrical devices,
  • Analyzes of the quality of the energy supplied by the energy supplier,
  • Investigate the sources and effects of higher harmonics in current and voltage.

OTDR (Optical Time Domain Reflectometer) measurements

We perform OTDR measurements by sending pulses of appropriate width and wavelength to the fiber and then detection and analysis of fragments at which reflection occurs. Measurements of this type are performed with a specialized device - a reflectometer.

Parameters that can be tested with this technique are: unit path attenuation, connector attenuation, total attenuation of the optical path, attenuation of reflections at the boundary of two media. The reflectometer allows to measure events occurring on the optical path - e.g. line break, unit loss (dB / km), end of line, splice losses, back reflection loss of connectors.

The measurements are made using the AFL FlexScan FS300 OTDR FS300-325-BAS-P1-W1 reflectometer in the optical wave range of 850/1300/1310 / 1550nm dynamics 29/29/37 / 36dB

Optical power measurements

Using the AFL FlexScan FS300 OTDR FS300-325-BAS-P1-W1 reflectometer, equipped with a power meter for optical wavelength 850/1300/1310/1490/1550/1625/1 650nm and a kit for transmission measurements of multimode (MM) and single-mode (SM) fibers, which include: universal power meter GRANDWAY FHP2 - NEO, light source (MM) 850/1310, light source (SM) 1310/1550, we perform measurements at the request of our clients optical power

LAN infrastructure measurements

The measurement of the transmission path is performed taking into account static measurements, i.e. verifying the correctness of the electrical connection and dynamic measurements performed as a function of frequency.

Measurement of the transmission path is necessary not only for the LAN system certification required by the end customer, but first of all to check the correctness of the LAN infrastructure performance in accordance with the applicable standard, along with checking the parameters of the cabling used with the data provided in the catalog card by the manufacturer.

The parameters that should be measured are strictly defined in the standard according to which the transmission path was made.

In the generated test report it is good practice to include the distance to each measurement - the track length.

HDTDX diagnostics allows for the analysis of crosstalk events and HDTDR diagnostics allows for the analysis of impedance events, in total for each transmission path we measure the following parameters:

  • Track length,
  • Delay of signal propagation along the path,
  • Delay difference between pairs,
  • DC loop resistance,
  • Pair resistance imbalance,
  • Resistance imbalance between pairs,
  • Insertion Loss - attenuation,
  • Return Loss - signal reflection in pairs,
  • NEXT - crosstalk,
  • PS NEXT,
  • ACR-N.

Static and dynamic measurements of LAN networks containing the above parameters are performed using a cable certification tester DSX2-5000, 1GHz, level V.

Thermographic measurements

Measurements made with a thermal imaging camera rely on non-contact temperature measurement. The image on the screen of the device illustrates the temperature distribution on the surface of the object to be inspected. We can thus identify points whose temperature is an anomaly. Too low or too high temperatures may indicate malfunction or overheating of electrical apparatus or devices. Thermographic measurements help detect problems in many areas. These include: thermal insulation of rooms, electrical installations (overloads, incorrect connections, inaccurately fastened wiring, blown fuses, loose terminals, etc.), excessive friction in moving parts, efficiency of heat exchangers.

Properly performed examination with an appropriate device class and correct interpretation of the image ensure great usefulness of this type of measurements.

Electrical audits

We conduct electrical audits related to the optimization of electricity consumption and the selection of the optimal tariff for electricity consumption and transmission. The audit may also indicate the existence of possible irregularities or threats affecting the functioning of a given facility or production process. It is also a starting point for the optimization of costs related to electricity consumption.

The audit is performed, inter alia, PQM 702 Sonel Electric Network Parameter Recorder and Sonel thermal imaging cameras.