Why Lighting transformers are used ?

(2 Min Read)

• Lighting Transformers are designed to supply power to lighting equipment in a commercial / industrial / domestic unit.
• Lighting transformers serves as isolation between primary and secondary, it also restricts any high voltage spikes and EMF coming with the raw mains incoming power.
• The prime reason for using Lighting transformer is to reducing the fault level of the lighting installation where the wires/switch gears used would have a lesser short time withstand rating.
• Another reason is to isolate the other loads like motors etc from lighting loads which basically operate on single phase supply and hence prone to unbalance as well as ground faults. so its better to use a isolation transformer having ration 1:1, it will provide the complete isolation to the equipment which is connected to PCC/MCC.
• It is also used where incoming supply is 3 phase 3 wire and lighting load is 220 Volt single phase.