What is Lilo in substation?

GENERAL. Some times it may be necessary to construct a transmission line by tapping the existing transmission line to feed load of a nearby Sub-Station. The tapping is done by Loop-In-Loop-Out (LILO) arrangement by providing slack jumpers with the existing transmission line.

What is Lilo point in transmission line?

The substation is the part of an electrical supply system which transmits the high voltage from the generating substations to the local distribution networks. In this substation, a long distribution line is brought in and brought out from newly created substation.

What is double circuit line?

Double circuit transmission line refers to the arrangement in which a total of six conductors are provided to make two different transmission circuit. In double circuit transmission line, there are two circuits each consisting of three conductors corresponding to three phases.

What is Loop in loop out?

Lighting Circuits – Loop In, Loop Out This is a form of parallel wiring that has one cable (usually twin and earth 6242Y) containing the live, neutral and earth wires looping in and then out of leach light fitting.

What is tapping in electrical engineering?

“Tapping” is an electrical term meaning adding new wiring to an existing branch circuit to provide electrical power for added loads such as receptacles or lighting.

Why is double circuit required?

Power supply using Double Circuit Transmission Line enables the transfer of more power over a particular distance. However, running two circuits in close proximity to each other will involve inductive coupling between the conductors.

What is difference between single circuit and double circuit?

What’s the difference between a single circuit and double circuit transmission line? A single circuit transmission line has three sets of conductors, while a double circuit transmission line has two independent circuits on the same structure with each circuit made up of three sets of conductors.

What is L1 L2 L3 in electrical?

Terminology. The three winding end connected together at the centre are is called the neutral (denoted as ‘N’). The other ends are called the line end (denoted as ‘L1’, ‘L2’ and ‘L3’). The voltage between two lines (for example ‘L1’ and ‘L2’) is called the line to line (or phase to phase) voltage.

What is 11kv substation?

11 KV Substation. Pole-Mounted Sub-Station: 1. It is a distribution sub-station placed overhead on a pole. It is the cheapest form of substation as it does not involve any building work.