Emergency Power Supplies in Hospitals and Data Centres.

Experts are in demand.

According to DIN VDE 0100 part 710, if the voltage over one or more external cables providing the general power supply to a hospital falls to less than 90% of the nominal grid voltage for a period of more than 0.5s, the power supply must be switched for safety. Looking in the direction of energy flow, this switching has to take place at the main distribution board level, behind the feed transformers and power sources. To ensure safety, it has to guarantee that the electrical systems can be connected within 15s to a secure power source providing energy for 24 hours. Reduction of the operational period from 24 hours to 3 is only permissible if the medical treatment and inspection of patients can be safely ended within this period and the hospital evacuated.

Summary

Only proper project planning and quality-assured measurement prevent nasty surprises. The required measurement technology has to fulfil diverse requirements. Voltages, currents, power and frequency must be recorded at a high resolution of 10 ms. An average measured over 200ms or one second would not be able to detect these network fluctuations. Deviations from the sinusoidal wave and voltage transients can be recorded using oscilloscopes. Using various trigger options such as a sine envelope curve trigger can provide even more information on the fault.

Our range for problem-solving

The mobile network analysers by A. Eberle GmbH & Co. KG, Nuremberg, fulfil all these requirements. These record and evaluate over 2,200 measurement values in parallel. These measurement devices are particularly suitable for mobile use thanks to their robust design and simple means of operation. Built-in network analysers and fault recorders are perfectly suited for permanent monitoring at a notable network point.

Do you need further information?

Feel free to contact us!


Contact

You might also be interested in

Economic Analysis Low Voltage Regulation

Smart Grids and the resulting changes in the distribution grids face many distribution grid operators with different challenges. These include...

Mehr erfahren

Parallel Charging of E-Vehicles

he Technische Hochschule Bingen (THB) charged e-vehicles in parallel at ten charging points. What was of interest here was measuring the charging current and its effect on the THB network; to determine pulse frequencies and their distribution across the network and to assess network asymmetries...

Mehr erfahren

Evaluating Supraharmonics up to 150 kHz in E-Vehicles at TH Bingen

In the first part of the measurement campaign in 2016, various e-vehicles were assessed as to their charging behaviour and feedback to the network. The evaluation considered DC harmonics up to the 50th...

Mehr erfahren

Pilot Project on a Motorway Parking Lot

In 2018, the “Auergründel” PWC (car park with WC) on the A6 suffered repeat failures of its fresh and waste water pumps...

Mehr erfahren
a-eberle kontakt newsletter ×