What is Wattage?
The first thing you need to consider when selecting a generator is the wattage of the generator. Add the wattage of the equipment you will use in your home together. This may include lights, refrigerators, washing machines, etc. This calculation will give you a rough idea of the generator size you need. Moreover, there are many appliances whose power consumption depends on whether they are on or off. You need to add their wattage when calculating. In this way, even an estimate can be calculated.
The Method Of Calculating Wattage of Generators.
First, list the loads you will be using. If you have something with an electric motor, such as a blender or a blower machine, then count to 3x of the rated kilowatts. All load manuals have a description of their kilowatts. Even then, if it’s not rated, you must multiply the watts by the power factor. 0.8 is the ideal power factor for general housing. Let’s take a look at an example of load.
Electric Heater | 2000 Watt |
10 Electrical Lights ( 100 Watt Each) | 1000 Watt |
Total Load | 3000 Watt |
Now, we will calculate 3x for the motor-related load.
Running Load | 3000 Watt |
Starting Load | 500X3= 1500 Watt (MAX) |
However, you may have to extend the load considering future usage. Let’s take a look at a sample model.
1st Step | Running Load= 3000 WATT | Starting Load= 1500 WATT |
2nd Step | +500 | +1500 |
3rd Step | 3500 WATT | 3000 WATT |
+25% | +875 | +750 |
4th Step | 4375 WATT | 3750 WATT |
Now, it is possible to calculate the kVA of the generator by multiplying the obtained watts by the power factor after calculating the current load.
kW= kVA X Power Factor
Or, kVA / Power Factor
Or, kVA= 3750/0.8 = 4688 kVA = 5000 kVA = 5 kVA
Always remember generators with higher loads than the required load can be used, but using fewer loads can be risky. This can create issues like overload.
By the above formulas, you can easily calculate the capacity of the load. Besides this online calculator, you can calculate kVA easily.
Different Types of Generators
Recreational Inverter
With a backup capability of 2000 watts, this generator weighs up to 80 pounds. This type of generator is the smallest in size, does not require any special installation, and is easy to carry. Used for very light usage, this generator can often be controlled by mobile applications.
Mid-Sized Inverter
With a backup capacity of 3,500 watts, this generator weighs up to 150 pounds. Like the recreational inverter, it is smaller in size but more capable in terms of backup. This generator is capable of giving backup for about 16 hours. For properties that are less prone to load shedding or blackouts, this may be an ideal choice.
Portable Generator
With a backup capacity of 6,500 watts, this generator weighs up to 300 pounds. This type of generator is suitable for an average-size property that needs to be connected via a power connection circuit breaker or a semi-heavy run like a pump.
Large Inverter
With a backup capacity of 6,500 watts, this generator weighs 250-300 pounds or more. This type of generator has the capability to back up appliances like refrigerators or air conditioners. These are mostly power efficient. These types of generators run using stabilized gasoline instead of propane or gas. Large inverters are very efficient for properties that have frequent power outages.
Home Standby
With a backup capacity of 6,500 watts, this generator weighs 350-600 pounds or more. Such a generator is a permanent solution. Home standby uses ATS technology so that when the power goes out, the generator automatically turns on and backs up. This type of generator is run by LPG or propane. Remember, this type of generator is expensive, as well as its installation charges are relatively expensive. It is good to know that its installation charge may be higher than the original generator.
From the above discussion, you will learn how to choose a generator for your property, details of different types of generators, and different methods of measuring kVA.
Contact us today at 01877-826686 or visit our website for any inquiries regarding your generator or any information regarding your purchase.