The installation method of complete electrical works is an important factor while designing electrical works. It defines how to execute the whole electrical works To finalized the installation, it requires coordination with other services like civil Architecture, Air-Condition, mechanical and plumbing works. Light fitting fixing method, arrangement depends on the basis of False ceiling type, whether it is recessed or suspended type or ceiling mounted or latch to ceiling or wall. Cables may be laid underground or in a cable tray suspended from the ceiling.
The transformer is the static device that transfer a.c energy from one level to Another level at the same frequency and power factor through electromagnetic induction. Transformers are used in transmission and distribution system. in consumer premises to step up and step down voltage. Power transformers are used to get various voltage (415 volts) in Sub-Station. It normally consists of a ferromagnetic core and two or more coil or windings. When one of the windings (primary) is connected to the A.C supply, alternating current magnetic flux is produced in the core. The flux linkage of other windings on the same core alternates. Thereby e.m.f. of the same frequency is induced in other windings called secondary windings. The e.m.f. is induced in the transformer by electromagnetic induction of ternating magnetic flux. Power transformer rated 11/0.415kv is normally is used to provide power supply in the project. Kuwait transformer rating is 000 KVA,1250 KVA, and 1600 KVA.
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