the federal law No. 261 made many think. Why? After all, it regulates energy efficiency issues. In addition, it obliges budgetary organizations to annually reduce electricity consumption.
Agree, the task is not easy. Imagine big government agency. Dozens of people work in it, for them there is impressive size canteen. It has stoves, lights and so on. The question is how to shorten Energy consumption without big expenses?
The answer to the question is simpler than it seems. This is an induction cooker. Given kitchen equipment designed to replace classic electric stoves. At the same time, the energy consumption of an induction cooker is significantly lower than that of a classic electric cooker. And the efficiency is higher.
Why is an induction cooker energy efficient?
Firstly, an induction cooker does not need a 20-30 minute warm-up, like a classic electric stove. Calculate how many precious watts you will thus save in a year in a departmental canteen.
Secondly, coefficient useful action at the induction hob more than one and a half times higher than that of the electric one. The first converts electrical energy into heat with an efficiency of 90 percent, and the second with an efficiency of 55 percent!
Third, induction cooker consumeselectricity discretely. That is, if necessary, the "gluttony" of technology is reduced, as are your electricity bills. Not a single classic electric stove can boast of such a thing, since it turns on in the morning, works throughout the day and turns off only at the end of work, while consuming very a large number of electricity.
So, are you ready to cut your electricity bills? improve energy efficiency and start making more money? Then contact Techno-TT and pick up your induction cooker.
Before purchase electric stove people ask themselves the question of choice - it is important not to make a mistake, because this kitchen appliances should serve for many years. One of the main aspects that you should pay attention to when buying is power. The electric stove is the number one consumer of electricity in the house. For optimal use, you need to know what kind of kitchen appliances are produced by manufacturers and how this indicator affects the operation of the unit.
Standard electric stove power indicators
Currently, there are classic stoves - with traditional burners. Heating element - spiral. They heat up and cool down quite slowly. Glass ceramic heats up more evenly and takes less time to cool down. The efficiency of such household appliances is quite low.
There are also stoves with induction burners. In them, heating occurs due to vortex flows, which are formed by a high-frequency magnetic field of 20–100 kHz. In this case, not the burner is heated, but the dishes standing on it. The working area is heated to a maximum of 60 degrees. This is its significant plus, since it is impossible to get burned during the operation of such equipment.
The power consumption of appliances increases with an increase in the number of burners and their diameter, and this indicator is also affected by the presence of other heating elements:
- 2 cast iron burners will take 2000 W;
- 4 - from 5000 W;
- 4 burners with induction heating may be required from 10400 watts.
But this is on condition that you have to use all the burners at the same time, and this is extremely rare - only when you need to cook a large amount of food. Usually one or two work.
How power affects operation and energy consumption
When choosing a stove, it should be taken into account that its power will affect the heating rate and the number of simultaneously fully working burners. The oven will require the most energy. But high-quality insulation of the oven will reduce the loss of electricity and money.
The user can optimize the electrical energy consumption of his stove if:
Many people ask the question: "How many kilowatts is the consumption of an electric stove?". The approximate amount of energy that, on average, a household appliance will consume in a month is:
- engine mounted on a grill spit - 6 W;
- lighting oven– 15.0–25.0 W;
- burner with a diameter of 14.5 cm - 1.0 kW;
- with a diameter of 18.8 cm - 1.5 kW;
- with a diameter of 20 cm - 2.0 kW;
- upper and lower heating elements in classic stoves 0.8 and 1.0 kW, respectively;
- Heating element installed on the grill in the oven - 1.5 kW.
A large burner needs the most energy to work, but its heating rate is significantly higher than smaller diameter burners.
REFERENCE! Currently, manufacturers label all household appliances according to economic efficiency classes. The less energy required to reach a given temperature, the higher the class. Marking is indicated English letters: A, B, C… G. At the same time, the “A” marking stands for high energy efficiency. There was even a class A+, A++ and A+++. This is the marking designation for the most cost-effective household appliances. Modern models stoves can be cheaper to operate than obsolete ones.
Cookers with induction hobs consume more power. But there are advantages to saving money when correct use devices:
- When using not only special utensils, but also utensils with ferromagnetic qualities (this includes even outdated pans covered with enamel), less heat loss occurs. If the magnet attached to the bottom of the pot sticks, the pan is suitable for induction heating.
- A quick removal of the pot or pan from the stove will also save money, because the burner in this case immediately stops heating up.
- Some options that are equipped with an induction heating stove also provide an opportunity to save money: auto-off when boiling, timer.
To work 4 – x induction hotplates most often up to 7 kW is required. Heating consumes 3–5 kW. It should be noted that the heating of such a plate takes half the time.
Usually they are equipped with a display. It displays modes and power levels. Due to the low temperature of the working surfaces, nothing will burn to such a stove. Therefore, it is easy to keep clean. If you try to use cookware with a diameter that is very different from the diameter of the burner, it will not turn on. How it will not turn on when you try to put dishes with a diameter of less than 100 mm on it.
REFERENCE! There are also combined plates. They have burners with induction heating and with installed heating elements. In them, as in any other technique, the power consumption will be prescribed in the technical operation manual.
Features of connecting the stove to the network
Since the electric power of the stove is quite large, when designing electrical circuits in the house, be sure to take into account the maximum power of the stove. When installed, it needs a separate line and outlet.
You will also need:
- a three-core cable with double insulation and a copper cross section of at least 4 square millimeters;
- protective shutdown device not less than 32 A;
- power socket 32 A;
- introductory machine at least 32 A.
If the user is not an electrician, it is better to invite a specialist to install an electric stove (you should not forget to ask him for a certificate of completion), because all connections must be made very high quality. Large power consumption household appliance can lead to overheating of the contacts and a short circuit.
Under the condition of choosing a high-class cost-effectiveness slab, fulfilling correct installation and compliance optimal conditions operation, you can not only save money, but also enjoy the use of modern household appliances.
It is worth being prepared for the fact that it will require a huge amount of electricity. This appliance, compared to other household appliances, has the most high power. For this reason, the installation of such a stove requires separate sockets and lines. For houses where there is no gas equipment, and only electric stoves are used, preferential tariffs for electricity are established. So, what is the standard power of an electric stove?
An electric stove with two cast-iron heating elements most often has a power of 2000W, and a similar device with 4 elements - from 5000W. If a four-burner stove, then the value will start from 10400 watts. Naturally than more number heating and other functional elements, the greater the indicator of electricity consumption.
When choosing a device, it is worth remembering that the power of the electric stove also affects the heating rate of the burners.
A separate place among electric stoves is given to devices with induction heating elements. Such equipment also has a cost. But if it is used correctly, then the energy costs will be less. This is ensured by:
- heating occurs very rapidly;
- the heating switches off automatically when the dishes are removed;
- special dishes do not allow heat loss.
Dependence of power and energy consumption
Each owner wants to know how much electricity his device consumes, taking into account its functionality. A conventional electric stove, which has four cast iron burners, consumes on average approximately 4 to 8 kilowatts per hour. But this indicator is calculated on the condition that all burners work together, respectively, if only one is turned on, consumption is significantly reduced.
Every housewife should remember that with proper save electricity consumption. With a few rules, this is easy to do:
- in order not to lose excess heat, the diameters of the burner and the pan should match as much as possible;
- the smooth bottom of the dish improves heat transfer;
- cast iron burners can be turned off a little earlier, as they cool down for a long time, respectively, cooking continues after turning off.
Choosing cookware with the same burner diameter
Also, to achieve maximum savings, it is worth knowing the power of individual functional elements of the device. Below are the approximate values of this indicator of the main components of the plate:
- burner with a diameter of up to 14.5 cm - 1 kW;
- heating element with a diameter of 18 cm -1.5 kW;
- electric hotplate with a diameter of 20 cm - 2 kW;
- lighting - 15-20 W;
- Grilled heater - 1.5 kW;
- Heating element from below - 1 kW;
- TEN from above - 0.8 kW;
- spit motor - 6 watts.
It is easy to come to the conclusion that the electric stove consumes the most energy when it is working. large burner, but do not forget that the cooking process on it is accelerated and goes much faster.
Energy classes
Each manufacturer is trying to increase the competitiveness of their products. Therefore, they strive to reduce energy consumption as much as possible. Electric stoves, like any appliances, are divided into classes according to electricity consumption. Designation is done with Latin letters from A to G, starting from the highest. Today you can see the following designations: A ++ or A +++. This means that the energy consumption figures are higher than class A.
The class depends on the amount of energy consumed when the set temperatures are reached. Ovens consume the most energy, but with improved insulation that will reduce heat loss, significant savings are achieved.
Network connection features
When it is worth considering its high power, so you must adhere to certain rules. To install such a device, you will need:
- power outlet 32A;
- introductory machine more than or equal to 32A;
- three-core copper cable, which has double insulation and a cross section of more than 4 sq. mm;
- RCD not less than 32A.
To not happen contact overheating, each element of the wiring must be of high quality in compliance with safety regulations and installation instructions.
According to experts, the power consumption of a stove not only depends on the characteristics of the appliance itself, but to a greater extent on the conditions of use.
Electric induction hobs are very popular today. Everyone talks about their economical consumption of electric current, so it was impossible to ignore the issue associated with such a concept as the power of an induction cooker. The inhabitants believe that if the device is economical, it means that it has less power. In principle, this is how it should be, but this does not apply to cooking surfaces, because without a certain power it is impossible to heat metal dishes with liquid. I mean, maybe, but it will take a long time.
The principle of operation of induction cookers is based on the formation magnetic field, under the influence of which induction currents. Therefore, conventional heating elements such as heating elements are not used in the stove itself. They have induction coils with a copper conductor. It is they who form a magnetic field when an electric current moves through them.
Induction currents do not act on the hob, they act directly on the cookware. True, this requires special dishes; an element made of a magnetic alloy is installed at the bottom of it. And this is one of the minuses of the hob of this type because such dishes are more expensive than usual.
But on the other hand, induction cookers have a high efficiency. It is equal to 80%. The thing is that inductive currents do not heat the panel itself, although it itself can heat up to + 60C from the dishes. That is, the effect of the magnetic field occurs directly on the dishes, hence the high efficiency, which is not wasted on intermediate elements in the form of metal elements, under which heating elements are installed.
Plate power
So, let's move on to the question, how many kilowatts does an induction hob consume? Let's start with the fact that manufacturers today offer different models with different power characteristics. There are low-power models - up to 3.5 kW, there are quite powerful ones - up to 7.0 kW. Let's take a look at the second option for clarity.
Such an induction hob four burners:
- Two burners are small with a heating diameter of 160 mm. The power of each is 1.5 kW.
- The middle burner has a diameter of 180 mm. Its power is 2.0 kW.
- And a large one with a diameter of 210 mm also has a power of 2.0 kW.
If we compare conventional electric hobs with this induction one, then they will be the same in terms of power characteristics. That is, it seems impossible to say that induction models are more economical than conventional electric ones. But there are savings, and it’s not for nothing that manufacturers talk about it all the time. Where is she?
We return to induction currents, which directly affect the dishes. It is the high efficiency of the device, it is the magnetic field and induction currents that create the conditions under which water boils two to three times faster in the dishes. The same goes for heating food. That is, cooking induction panels faster, and therefore less electricity is spent on them. An experiment was made in which a kettle with 1.5 liters of water was placed on two different stoves. So here on electrical panel where heating elements are installed, the kettle boiled after 14 minutes. On induction this happened after 5.5 minutes. That's all the savings for you.
Induction cookers - saving electricity That is, the power consumption this case does not depend on the power of the burners, it directly depends on the heating time of the dishes. In addition, I would like to add that in hobs you can save in another way. And many housewives do not know or do not know about it. But it is some cooking tricks that make it possible to save a lot Money. For example, after boiling water, you can reduce the intensity of heating. In hobs, this is very easy to do. You don't need to twist anything, everything is done by pressing your finger.
- Maximum heating is carried out at position "9". But they are rarely used.
- More often use intensity at positions 6-8.
- Warm up food for 3-4 hours.
That is, by heating the dishes with water to a boil, you can cover the same pan with a lid and reduce the power supply to position “3”. The same soup at this intensity of the stove will cook as much as at maximum heat without a lid.
And one more thing, which concerns the very convenient option of the induction hob. If you remove the dishes from the burner, the power supply is immediately turned off. That is, there is no need to manually turn off the device, the automation will do it for you. Where is the savings? It consists in the fact that many housewives first move the dishes away, and then only turn off the stove. The habit is not the best, but many women suffer from it (such a mindset).
Therefore, the manufacturers took care of automatic shutdown. It would seem that there are some seconds. But if you add it all up for a month, then a decent amount accumulates. After all, engineers who work at manufacturing plants are trying to reduce energy consumption to a minimum, based on the possibilities modern technology. Because this indicator is the most important for many consumers. After all, no one wants to pay.
Conclusion on the topic
What can be said in conclusion. Induction stoves appeared on the market not so long ago, but they have already occupied their niche. Yes, they are more expensive, which causes a decrease in the percentage of sales. But their popularity is growing, and this, of course, is to blame for advertising, which constantly drips on the brain, which this species tiles are more economical.
This is how it really is. But you should not assure everyone that this savings lies in the fact that the power of the burners of induction cookers is less than that of models electric type. As you can see from the article, this is not true. The point is not in kilowatts, but in kilowatt-hours, that is, for how long a certain amount of electrical energy can be used. And the less this time, the less energy will be spent. This is the whole point of induction cookers. Therefore, once again - energy is saved not by reducing the power of the device, but by reducing the time of its operation.
Induction cookers are gradually gaining popularity among housewives due to their cost-effectiveness. Is it really? Let's try to figure out whether an induction cooker is really more economical than an electric one and how the power consumption of an induction cooker affects electricity bills.
How an induction cooker works and how it works
The induction hob consists of a housing, a temperature sensor, a control panel and a power section.
The control panel controls the process. It is she who determines whether the dishes are placed on it or not.
By the way, not all dishes are suitable for such a device: you need dishes with high ferromagnetic properties, that is, metal utensils with the ability to magnetize. As a rule, cookware for induction is marked in a special way with the word "Induction" in the translation "induction", or with a zigzag icon. But if the manufacturer is a non-name, and there is no marking, you just need to bring a magnet to the bottom of the dishes: if it sticks, everything is in order, the dishes will do.
There is also an adapter for induction cookers - it allows you to cook food in aluminum, ceramic and glassware.
The technical data sheet of the device states that the size of the cookware should not be half the size of the burner, otherwise electromagnetic waves can affect everything that is nearby - electrical appliances or people.
The thickness of the bottom of the cookware for the induction cooker must be at least 2 mm
The principle of the device is fundamentally different from the device of a classic electric stove.
The stove works on the principle of a transformer - under the glass-ceramic panel there is an induction coil as the primary winding, and the flow of inductive energy passes through it. Its frequency is approximately 20-60 kHz. The dishes that are placed on the surface act as a secondary transformer winding. In this way, a high-frequency electromagnetic field is created, which generates heat and transfers it to the dishes and their contents. Located next to hob objects, as well as the burner itself, do not heat up.
The algorithm of the induction cooker
Induction panels may differ in the following parameters:
- in terms of performance;
- by the number of contours;
- by the presence or absence of an oven;
- by the size of the cooking surface;
- by the presence of a control system for regulating the heating temperature.
Power consumption of electricity by induction hobs: how is it determined?
Most induction cookers have 4 burners different size: the smallest consumes 1kW, two medium-sized ones consume 1.5-2kW, and one large consumes 2-3kW. The number of burners can be up to six. Each circuit is heated and regulated separately, independently of the others.
Knowing the power of the burners from the technical passport, by simple calculations you can find out how much electricity the device will consume in 10, 15 or 30 minutes.
All information can be found in the passport
If you operate the device in accordance with the rules, you can significantly reduce its energy consumption. Manufacturers recommend:
- use the smallest burners for brewing coffee, a small portion of porridge or stewed vegetables and meat;
- the largest outline is for a large pot of borscht or a pan of fried potatoes;
- medium contours suggest cooking, stewing, etc. in medium-sized dishes;
- some models have twin burners, they can use oval dishes such as ducklings;
- some devices are equipped with special express burners, which have a very high power (1.5-3 kilowatts) and are fast heating burners.
Double burner induction hob
Naturally, the more burners and the sum of their performance, the more electricity the appliance will consume. If the wiring allows, it is better to purchase a stove with 4-6 electric burners with good power - this will reduce the cooking time and the cook himself in the kitchen.
If the wiring is old and its capabilities are not credible, it is better to choose a device with a consumption of up to 3.5 kW. A model with such power consumption can be connected independently by simply plugging the plug into an outlet.
If the wiring is modern and there is no doubt, you can take a model with an energy consumption of up to 10 kW, but a powerful stove cannot simply be plugged into a free outlet, without taking into account the permissible load. In this case, individual electrical wiring is required to power the electric stove.
Do not use extension cords and tees to connect the induction hob: for safe work it must be connected to a power supply with a working ground.
Induction Cooker Energy Testing
Comparing an induction hob with a conventional electric hob, we can conclude that they have the same energy consumption. What is the economy?
- We will test the energy consumption of an induction hob and a classic electric stove. Take two 4-burner stoves, in which the power is 3.5 kW. On both surfaces we put two 3-liter containers with two liters of liquid room temperature. We do not cover with lids. On a classic electric stove, water began to boil in half an hour - 3.5 × 30 \u003d 1.05 kW per hour. On induction after 6 minutes - 3.5 × 6 = 0.21 kW per hour.
- The next test is induction versus microwave. The task is to heat a glass of milk to 50 degrees. A microwave oven heated a glass of milk in 40 seconds, a stove the same amount of milk in 30 seconds.
- The third test is the operating time of the burners.
For a quarter of an hour, the consumption of electricity by induction will be 0.175 kW per hour, only 0.5 kW per hour. In a conventional electric stove for 15 minutes, 0.175 kW per hour, but the energy consumption will be 1.93 kW per hour.
Induction electricity costs:
- electrical circuits - 4 pieces;
- operation two hours a day for a month - 0.5 × 1.3 × 4 × 2 × 30 = 156 kW;
- operation 2 hours a day during the year - 0.5 × 1.3 × 4 × 2 × 365=1890 kW;
- 1890 kW × 5 rubles per 1 kW = 9450 rubles during the year.
Electricity costs of a classic electric stove:
- consumption per hour - 1.3 kW;
- electrical circuits - 4 pieces;
- operation two hours a day for a month - 1.93 × 1.3 × 4 × 2 × 30 = 602 kW;
- operation 2 hours a day during the year - 1.93 × 1.3 × 4 × 2 × 365=7362 kW;
- 7362 kW × 5 rubles per 1 kW = 36810 rubles during the year.
The efficiency of the induction cooker is the highest
It turns out that in comparison with the energy efficiency of a classic electric stove, induction is 5 times more efficient.
Thus, the answer is found. Savings with this device lies in its high efficiency - 90% (due to the absence of leakage of temperature heating outside the dishes). By the way, the efficiency of a classic electric stove is 60%, gas - 40%. That is, the whole point is for what period of time it is used Nth quantity electricity. The smaller it is, the less electricity will be spent. Energy savings occur by reducing the time of its use. Also, when removing the dishes from the surface, it instantly turns off, which also saves electrical energy.
In a certain amount of time, induction will justify the investment in it, not to mention the pleasure of cooking on it.
