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How to check the electricity consumption in a single-family house

miron_60 48740 13
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  • #1 7742794
    miron_60
    Level 11  
    Hello, and first of all, I'm sorry that I'm asking for help right away. The problem is the high electricity consumption of 1800 KWh
    for two months /old bill for the amount of PLN 902 gross/. Yesterday, when reading the meter, the legs gave way - the bill was 1150 !!!. From this bill you have to deduct the electricity used by the aquarium, approx. 17KWh per day, and so about 20 KWh per day escapes somewhere. I have energy-saving lighting, a freezer, a fridge with a freezer, an electric cooker, two computers working /laptop and stationary/ washing machine and TV. Well, and central heating with two circulation pumps. A family of 3 where only computers work 12 hours a day. I wrote down the meter at 2.40 am and at 8.40 am and the consumption was 1.723 KWh for 6 hours / the consumption of the aquarium was already calculated on the basis of the "Voltcraft" power consumption meter connected. I don't know if something is hitting the wall or the mass. A year ago, before setting up an aquarium, I paid 270,- for two months and I was tearing my hair out and now I'm going to hang myself. I even replaced the odometer.
    How can I check if my current is leaking somewhere? I was thinking about connecting this Voltcraft box by the meter to the socket and I wanted to plug in a plug with two cables, one cable to the ground strip and the other to touch the wires of the transfer plugs /those that click when there is a short circuit and you have to flip the lever with your finger/ I wanted to check through it current consumption on the relevant lines, i.e. light on the first floor, ground floor, in the basement and the same in sockets. My question is whether such a connection of this box to measure consumption will be appropriate and whether I will not burn something. I've messed up more than once, so now I prefer to ask in such a respectable forum. I will be grateful for help and direction in solving this knot. Regards. Miroslaw
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  • #2 7742876
    ziomus90210
    Level 35  
    Maybe it will be easier to disconnect all devices one by one and observe the counter.
    And I would recalculate it all again and think more deeply about what you wrote.
    PC is approx. 200W * 12h = 2.4kWh
    TV let's say 50W * 12h = 0.6kWh
    lighting + cooker + fridge + freezer = ?
    the circulation pump is. 50W * 12h * 2 = 1.2kWh
    etc. maybe from time to time a heater in the washing machine about 2kW
    The kitchen is also not much.
    You wrote that for 6 hours the consumption was 1.7kWh, it will consume a receiver with a power of about 300W, which is not much, e.g. two pumps and some lighting.
  • #3 7742961
    sim_
    Level 18  
    Hello, the safest way in this situation is to use a clamp meter. I would suggest borrowing you (assuming you have someone from whom) a clamp meter, preferably with True RMS, if it will be without RMS then
    the measurements will be burdened with some error, but to "catch" what consumes the most electricity will be enough. The second requirement for the meter would be good if it could remember the minimum and maximum values. When it comes to the measurement itself, you put it on the cable of one of the phases and it is best that the measurement is carried out for a longer period of time, e.g. a day and so, the next phases are sequentially, this will allow you to find the phase with the highest current consumption. I suggest a longer measurement because, with momentary manual switching on of devices, you can miss something, and after a day you can see the consumption on the meter and the maximum current on the meter. Once you know which phase has the highest current consumption, you can start to check which device is doing it.
    The method of connecting the "Voltcraft box" proposed by you is dangerous for many reasons, the two most important are:
    - risk of electric shock
    - you connect the device without protecting it, which may result in damage to the installation or even a fire. I don't care about electrical licenses.
    Seeing your knowledge of electricity, I would suggest, but the simplest solution in the form of an electrician with such a meter, with his participation and experience, should catch the fault within an hour and propose a reasonable solution, assuming that it is a fault. The cost of such a visit will be disproportionately lower than the bill. Regards, Janek.
  • #4 7743041
    Lukas555Lukas
    Level 13  
    The simplest solution, as you wrote, is to calculate approximately how long the devices work and what power they have. Then you sum it all up and you are ready to calculate.
    Perhaps you have a damaged meter (even though it was replaced), or someone just steals energy from your installation in some way.
    Also describe what your installation looks like, how old it is, what system it was assembled in, and what your house or apartment looks like. Everything that will help in diagnosing the problem. I had a similar case once, but we need more information to compare it.
    Regards.
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  • #5 7743648
    Anonymous
    Anonymous  
  • #6 7744174
    Miniax
    Electrician specialist
    miron_60 wrote:
    Hello, and first of all, I'm sorry that I'm asking for help right away. The problem is the high electricity consumption of 1800 KWh
    in two months From this bill, you have to deduct the electricity used by the aquarium, approx. 17KWh per day, and so about 20 KWh per day is escaping.


    Since the energy consumption in two months is 1800kWh, and the aquarium uses 17kWh per day, then:
    17kWh * 60 days = 1020kWh
    1800kWh - 1020kWh = 780kWh
    780kWh / 60 = 13kWh
    As you can see, 13 kWh is not about 20 kWh per day, excluding the aquarium.

    Despite this, there is no denying that the consumption is at least twice as high. Unless you use some flow water heaters and e.g. a cooker with an electric hob.

    ziomus90210 wrote:

    PC is approx. 200W * 12h = 2.4kWh
    TV let's say 50W * 12h = 0.6kWh
    lighting + cooker + fridge + freezer = ?
    the circulation pump is. 50W * 12h * 2 = 1.2kWh
    etc. maybe from time to time a heater in the washing machine about 2kW


    Nowadays, a computer needs a minimum of 400W (300 - 600W computer power supply + monitor and similar approx. 100W). And that he wrote "computers" means that he has at least two, i.e. approx. 800W * 12h = 9.6kWh / day, so such consumption is possible (unless you meant a laptop or some very old 200W machines for the computer ).
    You also need at least 100W for your TV.
    If it also has this electric hob, it is possible that such bills come.
  • #7 7744186
    Alana
    Level 37  
    Quote:
    A family of 3 where only computers work 12 hours a day.

    I wouldn't be surprised if that was the reason. My box pulls about 120VA, CRT monitor probably twice as much, 50 paws, 60 server.
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  • #8 7744211
    MARCIN.SLASK
    Home appliances specialist
    Average 1.25kWh. The heater(s) may have been running frequently.
  • #9 7745044
    =Grzegorz=
    Level 25  
    miron_60 wrote:
    I will be grateful for help and direction in solving this knot. Regards. Miroslaw


    The energy meter is a very good instantaneous meter, you calculate the current power consumption from the rotation of the dial, you look at what is turned on at the moment and it must match
    simple formula:

    P[kW]=( 3600 * RPM ) : ( time * C )

    RPM - the number of revolutions of the counter disc
    time - time measured by the stopwatch in seconds
    C - constant of the counter given on the plate, e.g. 375 for the A52 counter, 120 for the C52

    For example: you measured that the A52 counter made 8 revolutions in 42 seconds, it gives: P= ( 3600 * 8 ) : ( 42 * 375 ) = 1.82kW, so you consume 1820W at the moment


    Record the meter once a day for several days to know the daily consumption

    You said you used it yourself 30kW a day from it 17kW it's an aquarium, it remains 13kW the rest is perfectly normal

    I have a daily consumption of approx 9kW

    my calculation suggestions:
    1.5kW refrigerator
    2kW electric cooker (this is a massacre)
    2kW computers
    1kW pump
    1kW lighting
    0.5kW TV
    0.5kW average 1 wash
    0.5kW small devices in standby

    You already have 9kW...
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  • #10 7749763
    ziomus90210
    Level 35  
    That's right, writing 200W on a PC, I underestimated the rest, like everything else.
    Where's your counter? (in house - box outside)
    If I were you, I'd think about saving energy, not digging a hole in the whole thing.
    As my colleagues wrote, I advise you to count again.
    And so on the side.
    What kind of aquarium is this?
    Do you keep alligators in it?

    Colleague not interested :(
  • #11 7750145
    Anonymous
    Anonymous  
  • #12 7762731
    miron_60
    Level 11  
    thanks for your interest and suggestions, however, I did not have access to a clamp meter, and I was tempted to use the VOLTCRAFT current meter. At first, there were short circuits because the plug inserted into the meter was connected to the power cable, e.g., the set of sockets on the floor / of course, behind the switched off fuse, and the other cable hung on the ground. The problem was ruled out when I clamped the end of the cable to the power supply and the other to the return but disconnected from the mass. In this way, I found all receivers mounted on the line as well as checked the power consumption. When I turned off all the receivers, the display showed zero, so I didn't find any breakdown. The problem occurred with the sixth line, where after disconnecting from the fuse and unscrewing the other end from the ground after connecting to Voltcraft and measuring the consumption of the refrigerator connected to the kitchen socket, after a while there was a short circuit after which the fuse under Voltcraft blew out and the cable burned on the end. With the line of sockets in the kitchen disconnected, there should be no voltage and the neon light is on, and that's where I stopped. When examining with a Phaser 777 neon lamp, for example, the previously checked cables screwed to the ground in the box, holding the metal zero in the neon lamp, it squeaks slightly, but the red indicator does not light up. Touching the unscrewed cable from the sockets in the kitchen to one or the other end, the neon lamp squeaks loudly and the red diode lights up. And here I was already stupid. If any of my colleagues know why I have a short circuit once and I don't have it and why the neon lamp is lit on the disconnected power line, I will be grateful. Regards, Miroslaw
  • #13 7907796
    neo_dc
    Level 32  
    Take it guy draw in paint what you did because at least I don't get it.
  • #14 14630419
    Pan_Tofian
    Level 8  
    This means that you have a damaged electrical installation and like a neon lamp
    If it doesn't light up, you must have put it on wrong. Have you checked the installation puncture?
    near the counter? If so, you may have a bad installation
    for example in a wall. In this situation, it would be the most reasonable to invite
    Have an electrician check the entire installation.

    Added after 9 [minutes]:

    This means that you have a damaged electrical installation and like a neon lamp
    If it doesn't light up, you must have put it on wrong. Have you checked the installation puncture?
    near the counter? If so, you may have a bad installation
    for example in a wall. In this situation, it would be the most reasonable to invite
    Have an electrician check the entire installation.

    Moderated By Łukasz-O:

    3.1.19. It is forbidden to post entries in archived discussions.
    Don't you think that for five years the author of the topic has already dealt with the problem?

Topic summary

The discussion revolves around diagnosing high electricity consumption in a single-family house, where the user reports a consumption of 1800 kWh over two months, with a significant portion attributed to an aquarium. Participants suggest various methods to identify the source of excess consumption, including disconnecting devices to monitor the meter, using a clamp meter for accurate readings, and calculating the power usage of appliances. Concerns about potential meter malfunction or energy theft are raised, along with recommendations for measuring the time of meter dial rotations to assess consumption. The user later shares their experience using a Voltcraft power meter to check the consumption of devices, indicating a need for further investigation into the electrical installation.
Summary generated by the language model.
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