What is the symbol for 3-phase?

What is the symbol for 3-phase?

Three-phase electric power (abbreviated 3φ) is a common type of alternating current used in electricity generation, transmission, and distribution.

How do you read a 3-phase energy meter?

Each meter is assigned a unique individual serial number, and the first four digits are the meter code followed by a six digit serial number. These indicate the active voltage presents of each phase.

How many terminals does a 3-phase energy meter have?

For Three phase Energy meters:- For installation of these meters there are 12 No. s terminals 6 no. s for three phase power supply at Input and 6 no’s for output power supply .

What is 3-phase energy meter?

Definition: The meter which is used for measuring the power of three phase supply is known as the three phase energy meter. The three phase meter is constructed by connecting the two single phase meter through the shaft. The total energy is the sum of the reading of both the elements.

What is a phase symbol?

(symbol: ϕ) The difference in phase between two sinusoidally varying quantities of the same frequency. It may be expressed as an angle (the …

What is the symbol for 3 phase motor?

IEC Symbol Preview – 3 Phase Motors

How many types of 3-phase energy meter are there?

Basically three types of energy meters are present. It consists of rotating aluminum disc mounted on a spindle between two electro magnets. Speed of rotation of disc is proportional to the power and this power is integrated by the use of counter mechanism and gear trains.

How do you wire 3-phase?

Practical Procedure of Three Phase wiring of distribution board & installation

1. First of all, connect the three-phase energy meter as shown in fig.
2. Connect the MCCB (Molded Case circuit Breaker) as main switch to the incoming three phases (R, Y, B) from 3-phase energy meter. (

What is the symbol of energy meter?

Wattmeter Symbol A wattmeter is an electrical measuring instrument used to measure electrical power. An energy meter has two coils – a current coil and a voltage coil. The symbol of a wattmeter can be drawn by a circle on the capital letter W.

How do you type the electrical phase symbol?

It can also be typed under any keyboard setting by pressing NumLock, holding down the Alt key while typing 0 2 1 6 (for uppercase) or 0 2 4 8 (for lowercase) on the numeric keypad, provided the system uses code page 1252 as system default.

What is the electrical symbol for phase?

ϕ
(symbol: ϕ) The difference in phase between two sinusoidally varying quantities of the same frequency. It may be expressed as an angle (the …

How do you calculate kW in a 3 phase circuit?

kW = √3 × PF × A × V / 1000 The power (kW) equals the square root of three (√3) multiplied by the power factor (PF) times the current (Amps or A), times the line-to-line RMS voltage (V) divided by 1000.

How do you read a kWh meter?

Always read the dials from the right to the left, starting from Dial A to Dial E. Read the number by the pointer of the dial. When the pointer is between two (2) numbers, the lower number is recorded. To compute your electric consumption, simply subtract the previous reading from the present reading.

How many kWh makes a unit?

If you use 1000 Watts or 1 Kilowatt of power for 1 hour then you consume 1 unit or 1 Kilowatt-Hour (kWh) of electricity.

What are the main parts of energy meter?

The components of this system are two silicon steel laminated electromagnets. The upper electromagnet is called shunt magnet and it carries a voltage coil consisting of many turns of thin wire. The lower electromagnet is called series magnet and it carries the two current coils consisting of a few turns of thick wire.

How many wires does a 3 phase system have?

four wires
Three-phase has four wires: three actives (called phases) and one neutral. The neutral wire is earthed at the switchboard.