3 phase distribution board wiring:

This diagram shows 3 phase distribution board wiring diagram. In this circuit, we use a ct coil, an amper meter, two voltage meters, 3 signal lights, and five MCCBs. This circuit diagram is very simple and easy to make connect it. If you want to know more about this circuit, please check our youtube video below the post. For more information please check our category.


Diagram of 3 phase distribution board wiring:

3 phase distribution board wiring diagram

Components needed For this Project:

You can get the components from any of the sites below:

  1. Single Phase Amperemeter [See Buy Click Amazon]
  2. single phase Volt Meter [See Buy Click Amazon]
  3. MCCB 100A [See Buy Click Amazon]
  4. CT Transformer [See Buy Click Amazon]
  5. Indicator Light 220v AC [See Buy Click Amazon]

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

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Components used to make the 3 phase distribution board wiring:

01. Ampere Meter:

Ammeter, an instrument, with the help of which the flow of electricity can be measured directly in Electrical units, amperes. It is a galvanometer with very low resistance. As a result, the entire current flows through the meter coil. Current is measured with an ammeter. So it can be said that the device that measures the flow of current in an ampere unit is an ammeter. Electric current is the flow of electrons whose unit is an ammeter. So it can be said that the device that measures the flow of current in an ampere unit is an ammeter. An ideal ammeter has no internal resistance. But in reality. the ammeter has little internal resistance. The range of the ammeter depends on this resistance.

02. Voltage Meter:

An instrument that measures the potential difference between any two points in a circuit directly in volts is called a voltmeter. A voltmeter is an Electrical instrument that directly measures the potential difference between any 2 points in a circuit in volts. The voltmeter is connected in parallel with the 2 points in the circuit where the potential difference is to be measured. This instrument consists of a galvanometer. Like an electric cell or an ammeter, a voltmeter has 2 terminals, a positive and a negative terminal. Usually, the positive end is red and the negative end is black.

03. TP MCCB:

The MCCB consists of a bimetallic sheet that expands and contracts when the temperature of the MCCB changes. Due to overload, the bimetallic strip will start to bend and eventually. it will trip if more current flows in the circuit than the predetermined current. The trip mechanism opens the breaker. MCCB stands for Molded Case Circuit Breaker. It is another type of electrical protection device that is used when the load current exceeds the limit of a miniature circuit breaker. The MCCB provides Protection against Overload, and Short Circuit Faults and is also used for Switching the Circuits.

04. CT Coil:

A current Transformer is a device used to measure alternating currents. The transformer used with the ammeter for high-quality AC current measurement is called a current transformer abbreviated as CT. Current transformers are mainly used to measure high current flow. We know that high power lines carry a lot of currents. In this case, an ordinary ammeter or multimeter cannot measure this current flow. Current transformers are used in Acorn.

05. Indicator Light:

An indicator lamp just Sounds Technical, Sometimes it is called a Supervisory light Indicator. Indicator lights are amber in color and can be located at the Front, the Rear, and Sometimes at the Side of the car on both the left And Right-hand sides. The Common colors used by Indicator lamps are red, yellow, blue, white, and green line system. A Panel Indicator Lamp Generally has up to 5 Differently Colored Segments to Indicate Various Conditions on the Machine or Process system.

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Frequently asked questions

How does a 3-phase distribution board work?

A 3-phase board, also known as a 3 Phase Distribution Board or TPN is an essential part of a 3-phase electrical installation. It acts as a central hub that receives power supply from the electricity grid or a generator and then distributes it to various circuit diagrams within a building or facility.

How does a three-phase distribution work?

In a 3-phase power supply, the voltage on each wire is 120 degrees phase shifted relative to each of the other wires. Because it is an AC system, it allows the voltages to be easily stepped up using transformers to high voltage for the transmission and back down for distribution or giving high efficiency.

What is the working principle of the distribution board?

A distribution board or distribution panel (DP) is an important part of an electricity power supply system. Its job is to split an incoming electrical power supply feed into multiple secondary or subsidiary circuit diagrams. Most of the time, each of these secondary circuit diagrams will be protected with a fuse or breaker.

How many wires are in 3-phase?

3-phase installations are those formed by three different alternating currents diagram that divide the installation into several parts which are reached by a constant power supply. Their standardized powers are currently flow-adapted to 400 volts. Three phases have four wires: three actives (called phases) and one neutral.

What is MCB in the distribution board?

Miniature Circuit Diagram Breakers (MCB): A miniature circuit breaker controls the power supply to various miniature circuit diagrams on the main circuit. They switch off if they detect an overcurrent flow i.e. current that supersedes the circuit's diagram current flow rating.

Read more Single Phase Wiring


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