EE 110 - Electrical Engineering Workshop DEE
Exp.No: 3
Date: 26-06-21
WIRING OF SINGLE PHASE DISTRIBUTION BOARD
OBJECTIVE
Wiring of power distribution arrangement using single phase MCB distribution board
with ELCB, Main switch and Energy meter.
THEORY
In India, state electricity boards are the authorities to generate and distribute electric
energy. At present private agencies are also there like TATA, Reliance.KSEB
generates electric power at a voltage of 11 KV. This power is transmitted by
increasing the voltage at different levels as 66KV, 110 KV, 220KVor 400 KV from
different substations. At load dispatch stations this voltage is again stepped down as
11 KV and a feeder network is created. This feeder line energizes the 11KV/415V
step down transformer, and from these transformers electric supply can be given to
consumers at 240V and 415 V as single phase or three phases respectively.
All domestic and commercial consumers get electric energy from the distribution
network of concerned electricity boards. Based on the power requirements of
consumers, Electricity Boards may give 3-phase connection (for connected load
above 5000W) or single phase connection (up to 5000W connected load). In the three
phase connections 4 wires are provided, where as in single-phase connection one
phase and a neutral connection are provided to the consumers. Phase to neutral
voltage in our country is 230 V and phase-to-phase voltage is 400 V of frequency 50
Hz. Most of the appliances work on single-phase supply. There are some motors,
which require three phase supply.
A KWh meter is provided at the consumer end for measuring the electrical energy
consumed. KSEB introduces different tariffs for different consumers, as per their
connected load and nature of connection.
ITEMS REQUIRED
Energy meter, Main switch, ELCB, MCBs, Screw Driver, Line tester , Wire stripper ,
Pliers, Screws
1
Rajagiri School of Engineering and Technology
Exp.No: 3
Date: 26-06-21
WIRING OF SINGLE PHASE DISTRIBUTION BOARD
OBJECTIVE
Wiring of power distribution arrangement using single phase MCB distribution board
with ELCB, Main switch and Energy meter.
THEORY
In India, state electricity boards are the authorities to generate and distribute electric
energy. At present private agencies are also there like TATA, Reliance.KSEB
generates electric power at a voltage of 11 KV. This power is transmitted by
increasing the voltage at different levels as 66KV, 110 KV, 220KVor 400 KV from
different substations. At load dispatch stations this voltage is again stepped down as
11 KV and a feeder network is created. This feeder line energizes the 11KV/415V
step down transformer, and from these transformers electric supply can be given to
consumers at 240V and 415 V as single phase or three phases respectively.
All domestic and commercial consumers get electric energy from the distribution
network of concerned electricity boards. Based on the power requirements of
consumers, Electricity Boards may give 3-phase connection (for connected load
above 5000W) or single phase connection (up to 5000W connected load). In the three
phase connections 4 wires are provided, where as in single-phase connection one
phase and a neutral connection are provided to the consumers. Phase to neutral
voltage in our country is 230 V and phase-to-phase voltage is 400 V of frequency 50
Hz. Most of the appliances work on single-phase supply. There are some motors,
which require three phase supply.
A KWh meter is provided at the consumer end for measuring the electrical energy
consumed. KSEB introduces different tariffs for different consumers, as per their
connected load and nature of connection.
ITEMS REQUIRED
Energy meter, Main switch, ELCB, MCBs, Screw Driver, Line tester , Wire stripper ,
Pliers, Screws
1
Rajagiri School of Engineering and Technology
