1KVA - 300 KVA Double Isolation: A preferred method for noisy environments? Power Lines and Transformers Power lines should be assumed to have transient voltages on them. In wiring an AC line to your electronics, employ devices which will isolate those electronics from the AC power line. Generally this will be a transformer. A transformer should be provided in the AC power connection to your electronics, even if no reduction in voltage is needed. It will be best if the transformer selected is an isolation transformer, designed especially to provide maximum isolation. If your installation is subject to severe voltage transients from the AC power line, (from variable speed motor drives, for example, or servo/spindle motor drive amplifiers), the double isolation technique illustrated here is strongly recommended. Isolation Transformer eliminate such noises and attenuates the spikes to minimal values, providing complete protection against such electrical disturbances. It consists of double wound Transformers with Extremely low coupling capacitance to isolate the voltage spikes and reduce noise from mains with extremely high insulation resistance. The turn ratio of Isolation transformer is 1:1. It is generally installed with the separate machines?? Switching of Electrical Equipments in industrial and commercial Generates spikes up to 10000 Volts and high frequency Noises thus disturbing the sine wave output. The spikes can cause the failure of Thyristor, Microprocessor or other sensitive devices. The High frequency noise can interface with digital – Electronic Equipments Causing data corruption erratic behaviors, loss of memories etc…