Microwave power: how to check and adjust correctly?


Addi­tion­al fea­tures of the microwave oven should pro­vide for an increased load on the pow­er grid. Device para­me­ters such as microwave pow­er deter­mine the amount of elec­tric­i­ty con­sump­tion in the mode of switch­ing on all the pro­vid­ed func­tions.

Measuring utility

The main char­ac­ter­is­tics of a microwave oven among ordi­nary con­sumers are con­sid­ered to be pro­duc­tiv­i­ty and vol­ume. The dimen­sions of the appli­ance are deter­mined in liters (13–42 l), and the pow­er in watts (W). The numer­i­cal val­ues ​​of the pow­er para­me­ters increase in pro­por­tion to the volume/displacement of the appa­ra­tus. For a fam­i­ly of 4, a microwave oven with a vol­ume of 20–28 liters and a pow­er of 1.5 kW is enough. But how to check the nec­es­sary para­me­ters of a kitchen appli­ance for the needs of an aver­age fam­i­ly?

The breadth of its func­tion­al­i­ty and intend­ed use in the kitchen depends on the design of the device:

  • 500–800 W — for defrost­ing, heat­ing and cook­ing sim­ple dish­es;
  • from 900 W — cook­ing com­plex dish­es using addi­tion­al func­tions.

Low net­work para­me­ters when sev­er­al house­hold appli­ances are turned on at the same time can reduce the pow­er of the microwave oven.


Make sure that your home/office pow­er sup­ply is reli­able so that the load from oper­at­ing the microwave oven at full pow­er does not lead to fire haz­ard over­loads.

Mode appetites

Tools com­bined in a home microwave:

  • 500‑1700 W — mag­netron, microwave heater;
  • 1.5 kW — grill (quartz / heat­ing ele­ment);
  • 2 kW — a con­vec­tor that blows hot air with a fan.

A quartz-type grill is more eco­nom­i­cal, since it con­sumes less ener­gy than a heat­ing ele­ment, which also takes up the use­ful vol­ume of the cham­ber. Adding grill and con­vec­tion func­tions (what are they?) auto­mat­i­cal­ly increas­es the total ener­gy con­sump­tion and pow­er require­ment. Sep­a­rate use of addi­tion­al microwave tools is pro­vid­ed, which auto­mat­i­cal­ly reduces ener­gy con­sump­tion.

Discrete and inverter principles

The amount of microwave ener­gy sup­plied depends on the mag­netron — a heater of intense radi­a­tion of radio waves. The prin­ci­ple of oper­a­tion of a dis­crete device is based on the sup­ply of a con­stant 100% of the spec­i­fied pow­er. When switch­ing to low­er val­ues ​​of pow­er para­me­ters required in var­i­ous modes of the device, the emit­ter alter­nates on/off cycles dur­ing the time set by the timer. The dura­tion of the peri­ods depends on the select­ed mode — the longer the switch-on, the greater the heat­ing.

More advanced microwave invert­er tech­nol­o­gy involves a grad­ual increase in heat­ing pow­er. This prin­ci­ple of oper­a­tion of the appli­ance opti­mal­ly pre­serves the nutri­ents and tex­ture of the prod­ucts. There are elec­tri­cal appli­ances equipped with two microwave emit­ters for even dis­tri­b­u­tion of ener­gy. In every­day life, the pow­er con­sump­tion of a microwave oven varies from 500 to 1700 W — the speed of process­es in the cham­ber of the device depends on this val­ue. In the indus­tri­al sec­tor, the max­i­mum pow­er of a microwave oven is 2500 watts.

It is also use­ful to know about the basic prin­ci­ples of how a microwave oven works.

Where is the data

In the accom­pa­ny­ing doc­u­ments of house­hold appli­ances, the para­me­ters of the microwave pow­er pro­duced by the mag­netron (heater) are not indi­cat­ed — only the amount of elec­tric­i­ty con­sumed by the devices of the microwave oven in the aggre­gate is indi­cat­ed. The out­put pow­er emit­ted by the mag­netron is pro­por­tion­al to the pow­er sup­ply volt­age.

And how do you know what the pow­er of the kitchen appli­ance? The tech­ni­cal spec­i­fi­ca­tions declared by the man­u­fac­tur­er are indi­cat­ed:

  • on the back of the device on the rat­ing plate;
  • in the attached user man­u­al, instruc­tions.


Depend­ing on the pur­pose and the spe­cif­ic recipe, the microwave oven is used in modes referred to in var­i­ous ver­sions. The def­i­n­i­tions of microwave heat­ing lev­els apply:

  • 10%, 100 W — low, low. The mode of auto­mat­ic heat­ing of the dish at the end of cook­ing, defrost­ing / warm­ing up del­i­cate food.
  • 25%, 200–400 W — medi­um / low, below aver­age. Defrost­ing / heat­ing of semi-fin­ished prod­ucts and raw prod­ucts; cook­ing dish­es that do not tol­er­ate sig­nif­i­cant tem­per­a­tures.
  • 50%, 500 W — medi­um, medi­um. Leisure­ly cook­ing soups, fish / meat dish­es; fast heat­ing of cooked food.
  • 70%, 700 W — medi­um / high, above aver­age. Cook­ing fruits/vegetables, sauces/drinks, poul­try and sim­ple meals.
  • 100%, 800‑1000 W — high, max­i­mum. Inten­sive cook­ing mode, rarely used.

The aver­age pow­er of elec­tron­ic devices is most in demand among users. All val­ues ​​are pro­grammed by the man­u­fac­tur­er or set man­u­al­ly. Most mod­ern mod­els have a mem­o­ry func­tion for the modes used.

Types of control units

The pow­er con­trol of the device depends on the type of the select­ed admin­is­tra­tive pan­el. Con­trol sys­tems are divid­ed into:

  • mechan­i­cal — rotary con­trols of time, pow­er, grill mode;
  • push-but­ton — tac­tile dis­play and dis­play;
  • touch but­tons.

Manual power adjustment

The mechan­i­cal type is suit­able for old­er fam­i­ly mem­bers who are bet­ter off set­ting up the microwave oper­at­ing modes in a famil­iar and under­stand­able way. The push-but­ton con­trol unit is equipped with a timer, con­ve­nient for pre­cise com­pli­ance with the recipe con­di­tions. Dia­logue prompts are dis­played on digital/text dis­plays of such ovens. Touch mod­i­fi­ca­tion allows you to accu­rate­ly pro­gram modes based on pow­er.

All microwave own­ers must read: How to remove an unpleas­ant smell in the microwave.

Related video

A use­ful plot of cen­tral tele­vi­sion about the prin­ci­ples of choice and some rules for using a microwave kitchen assis­tant. At an accel­er­at­ed pace of pro­fes­sion­al pre­sen­ta­tion of infor­ma­tion, inter­est­ing, capa­cious mate­r­i­al was pre­sent­ed about the pow­er, safe­ty and design of the device.

In the fol­low­ing arti­cle, you can learn more about how to choose the right microwave oven.

A home microwave oven has a num­ber of advan­tages that com­ple­ment the clas­sic cook­ing option. Automa­tion of cook­ing process­es still requires the user to have min­i­mal knowl­edge of how to adjust modes and how much ener­gy they con­sume.





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