Rated power, also known as P.R.P. (Prime Power), is the power a generator can deliver continuously for an unlimited number of hours between recommended service intervals. It is expressed in kilowatts (kW) or kilovolt-amperes (kVA).
Maximum power, E.S.P. (Emergency Standby Power), is the highest power a generator can supply for a short period of time, usually a few minutes. It is used when energy demand temporarily exceeds the normal load. Overloading is not permitted.
kW - kilowatts, a unit of active (real) power
kVA - kilovolt-amperes, a unit of apparent power
More information: https://akmel.eu/aktualnosci/blog/kw-kva-o-co-w-tym-chodzi
Generators can be powered by various fuels:
- Gasoline > commonly used in portable generators
- Diesel > often used in high-power generators due to efficiency and durability
- Natural gas > increasingly popular
- Biogas > allows reuse of biomass, very eco-friendly
Each generator can run for a different amount of time on one tank. Check the fuel tank capacity and fuel consumption at different load levels. Analyzing these parameters will show how long a given generator can operate on a full tank.
An additional external fuel tank can also be considered.
Generators produce varying noise levels. If noise is important due to the location, check the noise parameters in the datasheet. Noise can be reduced by:
• Buying a soundproof (silent) enclosure
• Placing the generator in a container with sound-insulating elements
• Changing the location to increase distance from people
An automatic start system (ATS), also called a transfer switch system, ensures uninterrupted power. It monitors the primary power source and automatically starts the generator in case of a failure. It is crucial wherever power continuity is essential.
AVR (Automatic Voltage Regulator) is a system that stabilizes output voltage. If voltage fluctuates, AVR stabilizes it and protects connected electronic devices from damage.
Generator size matters when installation space is limited. Dimensions and weight vary by model, so always check the technical datasheet.
Service a generator according to the warranty and manufacturer's guidelines. Proper maintenance ensures reliable operation when grid power fails.
The purpose of a power generator is to ensure constant, guaranteed access to electrical power. To be certain that the generating set will start properly in the event of a power outage, regular inspections are necessary.
It is also required to run the generator regularly in order to verify that all operating parameters are correct.
An annual insulation resistance test of the alternator is essential. This test ensures safe operation (protecting against electric shock and guaranteeing the proper functioning of electrical installations and devices).
Like any machine or vehicle, if a generator is not started regularly, it may fail to perform its task in an emergency situation.
PROPER OPERATION AND MAINTENANCE OF A POWER GENERATOR ARE ESSENTIAL IF WE WANT TO FEEL SAFE AND BE CONFIDENT THAT IT WILL WORK WHEN NEEDED.
A power generator is a device that is very easy to operate. Each time, you can count on receiving detailed information and training on how to use the generator.
However, it should be remembered that this is an electrical device, which means that special caution must be exercised and access to the generator should be restricted to persons who have not been properly trained in its operation.
Generator overload occurs when more power is drawn from the generator than specified in the user manual. In practice, this means connecting too many receivers/devices or creating excessive power demand during the startup of equipment.
It is extremely important to select the generator properly and then operate it correctly.
Overloading may lead to dangerous situations such as equipment damage, overheating, or even fire.
It indicates that the electrical device can operate in various weather conditions and has protection against dust and water splashes.
The Euro Stage V standard introduces more stringent exhaust emission limits. Generators marked with this standard produce lower emissions of harmful substances such as NOx, PM, HC, and CO. As a result, they are more environmentally friendly.
Important information: Mobile generators mounted on trailers are required to comply with the Stage V emission standard.
- Power – what devices will be powered?
- Fuel type – availability and cost
- Mobility – stationary or mobile use
- Noise – impact on surroundings
They may include: Low-oil automatic shutdown; Overload protection, Overheat protection
- Reliability > keeps operations running during outages
- Independence > power anywhere, even off-grid
- Loss prevention > reduces financial losses from downtime
- Safety > ensures power for hospitals, hazardous work, etc.
It depends on the type:
Manual start - user must start it; takes several minutes.
With ATS - starts automatically after detecting a power failure.


