Get control on today's tricky switched power grid
The HIN agency Fluke, with its 1770 model series, delivers a voltage quality meter that provides both clear images and documentation of waveforms on 3-phase mains supplies with a clear emphasis on harmonics. This is important with today's many switched devices.
Get control of power quality and documentation on today's tricky switched power grid
There was a time when the voltage on the power grid was beautiful and sinusoidal, and the only thing that could disturb it was inductive or capacitive shifts of cos(phi). But then we came across switched and energy-optimized power supplies in all kinds of devices, and since then the sinusoidal shape has been almost non-existent on the power grid, and the harmonics can be disruptive to operation in many places – and damn hard to define in relation to the desired voltage quality.
However, the HIN agency, Fluke, is at home in terms of measuring voltages, currents, P and Q in power measurement and visualizing waveforms that deviate from what is expected. This has led to the development of the instrument, the 1770, which is a very easy-to-use power quality meter that makes life easier for both installation and troubleshooting on 3-phase power networks.
The range of measurements with the Fluke 1770 is enormous. The instrument measures harmonics up to 30kHz, which detects virtually all disturbing elements on supplies. In addition, the Fluke 1770 can register transients up to 8kV, and such high – often short-term – voltage peaks can be vital to find and repair, as such high voltages exceed the insulation voltage in many devices, which can be destroyed if such a violent transient suddenly comes out of the power grid. The top model in the series can perform overvoltage classification according to CAT IV 600V / CAT III 1,000V, and the fast transient measurements guarantee that you will not “miss” a transient.
Measurements with the Fluke 1770 are performed automatically, recording up to 500 parameters that affect power quality. In addition to displaying power quality and the distribution of harmonics, the meter also logs and records waveforms and events, making documentation easy and simple to perform. A “PQ function” shows the measurements live on the large and clear display. The instrument guides the user through the measurement process, and with data logging there is no risk of losing valuable measurements, otherwise having to go back and perform them again.
Via the Fluke 1770 and a PC in the office or workshop, you can perform and print reports according to standards such as EN 50160, IEEE 519 and IEC 61000-2-2, or export data to other software that may be important for reporting, with the push of a single button. During field measurements, you can define your power quality limits in relation to harmonics, so that you can achieve a simple “go/nogo” definition for the user in relation to the expectations of the connected devices or functions.
For the instruments in the 1770 series, HIN can supply a wide range of equipment such as a practical transport case that can also contain all the necessary, optional connections for the measurement tasks.
Read more about Fluke-1773 Fluke 1773 Power Quality Analyzer (hin.dk), Fluke-1775 Fluke 1775 Power Quality Analyzer 3-phase (hin.dk) and fluke-1777 Fluke 1777 Power Quality Analyzer 3-phase w/4 FLEX1500A current probes (hin.dk)
A clear display on the Fluke 1770 shows power quality in real-time with measurements of up to 500 parameters, harmonics up to 30kHz and transients up to 8kV. At the same time, the instrument logs measurement data that can be easily transferred to an office PC for reporting according to the latest electrical engineering standards.