Classification of generator sets acc. to ISO 8528

The PN-ISO 8528 standard refers to alternating current generating sets driven by an internal combustion piston engine, i.e. popular generating sets.
According to this standard, we have created a device that allows to test the operating parameters of power generators and classify them into specific groups.

Class G1 – The device meets the basic requirements for grid parameters in terms of voltage and frequency. Generators of this class can power lighting or electric heaters.
Class G2 – The device provides a grid quality similar to that guaranteed by the public electricity network. In the case of load changes, temporary deviations from the nominal values of voltage and frequency are allowed. These units are suitable for powering devices such as power tools or electronics.
Class G3 – The device provides a higher quality of electrical parameters compared to the public electricity grid. This type of generators is used when there is electronics in the building that are sensitive to the quality of power supply.
Class G4 – The device meets the special requirements for the electrical network specified by the customer. Special-purpose devices supplying key infrastructure facilities, e.g. Data Center.

During the tests, the device saves measurements with a frequency of 0.04 s to ensure the highest quality of data for analysis. After the tests are completed, it is possible to generate an automatic report along with an analysis of the results.

Classification protocol

Classification report

Parametry sprawdzane podczas testów

Parametr	Jednostka	G1	G2	G3
Spadek częstotliwości	%	≤8	≤5	≤3
Pasmo zmian względnych wartości częstotliwości w stanach ustalonych	%	≤2,5	≤1,5	≤0,5
Odchyłka napięcia w stanach ustalonych	%	≤5	≤2,5	≤1
Niezrównoważenie napięcia	%	≤1	≤1	≤1
Przejściowa różnica częstotliwości od częstotliwości początkowej – Nagły wzrost mocy	%	≤-15	≤-10	≤-7
Przejściowa różnica częstotliwości od częstotliwości początkowej – 100% nagłego spadku mocy	%	≤+18	≤+12	≤+10
Przejściowa odchyłka częstotliwości od częstotliwości początkowej – Nagły wzrost mocy	%	≤-15	≤-10	≤-7
Przejściowa odchyłka częstotliwości od częstotliwości początkowej – 100% nagłego spadku mocy	%	≤+18	≤+12	≤+10
Przejściowa odchyłka napięcia - Nagły wzrost mocy	%	≤-25	≤-20	≤-15
Przejściowa odchyłka napięcia - 100% nagłego spadku mocy	%	≤+35	≤+25	≤+20
Czas odbudowy częstotliwości	s	≤10	≤5	≤3
Czas odbudowy napięcia	s	≤10	≤6	≤4

Published: 24 października 2021

Remote and local control

Our devices can be controlled in many different ways.

The basic way is to control the device with a touch panel mounted in the load bank. It has all the functions available in the device.

Another method is to control with remote controls.
The basic and advanced remote control allows to control the load bank at a distance and are connected to the device via a cable.
The synchronization panel allows to control several devices at the same time, provided that they are clamped with a synchronization cable.

The load bank can also be controlled by a computer and there are several ways to do this:
The software by Prototypownia has the option of remote control using a computer. This is a copy of the panel, which is on the device and has all the available functions. It is necessary to connect to the device using an ETHERNET cable.
You can also connect via a web browser. It is also a copy of the panel on the device and has all the functions available. The device must have access to the Internet.
It is also possible to connect the device to the SCADA system already installed in the enterprise.

Published: 24 października 2021

Synchronization

Load bank synchronization

We synchronize load banks when we need more load power and it is necessary to control them with one device. For this purpose, the remote control is used for synchronization. It has special software that allows to control up to 9 devices at the same time. The panel also has an emergency stop, which immediately stops all connected load banks. The devices are connected via a synchronization cable with a plug that fits into the socket on the control panel.

Published: 24 października 2021

Test reporting

Guaranteed power system test reporting

When testing power sources, in addition to the test itself, it is also important to have a measurement protocol that confirms the correct operation of the device being tested. Our load banks, which have an electrical parameter meter, record the measurements to the internal memory of the device. Then, with the help of external memory, we can upload data to the computer and generate a ready-made report with aggregate data, graphs and measurement values using our application. The application has an easy and intuitive interface that allows to quickly generate reports.
In our offer we also have devices enabling the classification of power generators, which you can read about in the Classification of power generators according to ISO 8528. They also have the ability to generate reports from the tests carried out with automatic analysis of the results.
Below are sample reports generated using our applications.