3 phase SPD connection:

This diagram shows how to make 3 phase SPD connection. In this circuit, we use a three-phase energy meter, an FP MCB ( 4 Pole Miniature Circuit Breaker ), an SPD ( Surge Protection Device ), an RCBO ( Residential Current Circuit Breaker ), a Busbar, a Three Phase Motor. This diagram is very easy to connect. If you want to know more about this circuit please check our youtube video in the below article.

Diagram of 3 phase SPD connection:

3 phase SPD connection

Components needed For this Project:

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

  1. Three-Phase Energy Meter [See Buy Click Amazon]
  2. FP MCB  [See Buy Click Amazon]
  3. SPD [See Buy Click Amazon]
  4. RCBO [See Buy Click Amazon]
  5. Busbar [See Buy Click Amazon]
  6. Single Phase Motor[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!

Components used to make the 3 phase SPD connection:

01. Three Phase Energy Meter:

The Meter Which is used for Measuring the Power of 3 Phase supply is known as the 3-phase energy meter. A 3-phase Energy meter is a Three-phase 4-wire direct Connected meter that is Used to estimate the electricity on the Three-phase power supply, mostly for residential & commercial use. A Three-phase meter helps consumers & utilities in revenue protection. It Provides Data Storage and Communication Facilities as well. The 3-phase meter is Constructed by Connecting the two single-phase meters through the shaft.

02. FP MCB:

4 pole MCCB for 4-Wires Connections, the one additional 4’th pole for Neutral Wire Connection so that between Neutral and any of the other three will supply. In 4-Pole MCCB the Neutral Pole is also having Protective release as in the Phase Poles. Three Phase Supply with Neutral. TPN means triple pole TP + Neutral which is 3 – phases and Neutral, but the Protection is given for Three Phases only and in 4 poles MCB Protection is given to all 3-Phases as well as Neutral. In the case of a 4-pole MCB, the Purpose is not to protect the Neutral but it is rather to Isolate the Neutral.

03. SPD:

The ability of an SPD to limit overvoltage in the electrical distribution network by diverting the surge current is the surge-protective component, the mechanical structure of the SPD, and the connection to the electrical distribution network. A surge protection device SPD is a component of an electrical installation protection system. This device is connected to the power supply in parallel with the load circuit it is intended to protect. It can be used at all levels of the Power Supply Network. It is widely used in overvoltage protection.

04. RCBO:

An RCBO protects electrical equipment against two types of faults; Residual current and over current. Residual current, or earth leakage as it is sometimes referred to, occurs when there is a break in the circuit which can be caused by faulty electrical wiring or if the wire is accidentally cut. When there is a break in the circuit which may be due to faulty electrical wiring or accidental cutting of the wire. To prevent the current from being redirected and causing an electric shock, the RCBO current breaker stops it.

05. Busbar:

Busbar is a type of electrical conductor. It is made of copper or brass or aluminum. Busbar is most commonly used in factories. We supply the power from the transformer to the busbar. We take the electricity from this busbar to the circuit breaker. The advantage of using a busbar is that through it we can provide multiple power connections in multiple places very easily. How many thick copper bars are aggregates of busbars? A copper bar is rectangular (rectangular) or copper type or triangular in shape.

06. Three Phase Motor:

A Three-Phase electric motor uses a 3-Phase Power Supply to Convert Electric Energy into Mechanical Energy. It contains four Wires (Three hot Wires and one Neutral Wire) and Uses 3 Alternating Currents of the Same Frequency. Since it Generates a Rotating Magnetic Field, it does not need a Capacitor for the Startup. Some Three-Phase Motors are Reversible, Which Means they can serve as Generators by Turning Mechanical Energy into Electrical Energy.

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