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How To Wire Single Phase kWh meter?

How To Wire Single Phase kWh meter (3-phase,4 Wire Energy Meter) ?

(from the Supply to The Main Distribution Board (MDB)
 
below is the The Connection of Single-Phase (3-phase,4 Wire)) kWh meter (Digital or Analog Energy Meter) from the Supply to The Main Distribution Board

The Red Wire shows the Live or Line or Phase  and the Blake shows the Neutral wire.

This image shows the above idea in very simple way.

How To Wire Single Phase kWh meter (3-phase,4 Wire Energy Meter) ?
How To Wire Single Phase kWh meter (3-phase,4 Wire Energy Meter) ?

 In Real,

Click image to enlarge

How To Wire a Single Phase kWh meter
The connection and circuit diagram of Single-Phase (3-phase,4 Wire)) kWh meter (Digital or Analog Energy Meter) from the Supply to The Main Distribution Board

in the above image,  
Pin =  incoming Phase or Live
Pout = Out going Phase.
Nin =  incoming Neutral 
Nout = Out going Neutral 

Warning: This example shows the most common arrangement in the world, but there are variations. The setting may be different in other type of kWh meter in different areas. if confuse, Please contact to the supply and service provider to confirm the connection type.

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10 comments

  1. *thumb up*

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  3. thanks for the great info.<br />i need another info like this.<br />i.e i have a single 3 pin plugin socket connector and i have energy meter like as you shown above so how to connect the 3 pin spike buster plug to energy meter to find out energy consumed?

  4. please tel me that the neutral of input and output are common or not in digital energy meter

  5. I read this paragraph fully about the difference of
    most recent and preceding technologies, it’s remarkable article.

  6. Muhammad Hayat

    GoodGood knowledge

  7. abdullateef moshood

    Good good one

  8. Doulathrao Kadam

    what happen when two meters r connected in parallel. Whether the consumption of units of both meters r same or differ.

    • Dear Sir,
      We have already done the experiment by connecting two parallel wires to two different energy meters, connected (common single load of) halogen lamps of 2 X 1 Kw, capacity each, both the lamps connected parallel, and each input and output connected to 2 X 42.5 Mtr. wire length to each lamp.

      Wire resistance was 1.032 and other 4 wires of 1.63, 1.9, 2.03, 2.33 and 2.37 connected simultaneously against common wire having 1.03 Ohm. each length was 42.5 X 2 mtr length.

      Live source to both the meter, and neutral to 2 nd meter, Neutral made common at mtr end to run both the energy meter.

      Current observed 8.69 Amps = I1 + I2 , 230 V for both lamps at source. It was observed that 2 nd mter reading was moving fast, and the ratio of power consumption observed in the ratio of 1.6/1.032 ohms. Calculated Amps for each lamps 4.35 amp.

      Power consumption in second meter observed fast compared to 1st, even after alter terminations from 2 nd to 1 st meter.

      Result are attached. This is because of high resistance in wire. as per calculation losses is comes approxy.

      KWH ( Power in Hour) = KW ( Speed) X Hours, Hence in less ampacity wire takes more time to consume same enegy, and it is proportional to its resistance ratio.

      We can say if the ampacity of wire does not meet the requirement in high res. wires takes more time and leading to heat the wire also.

      If same wire connected to AC , high res wire takes more time to cool the room compared to low res wire.

      waiting response from expert, energy saving point of view.

      M. No 7718885109.

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