Elent Electronics Pvt. Ltd. Offers Constant Voltage Transformers. Elent Electronics Pvt. Ltd. Is an ISO 9001:2000 registered organization that supplies different types of power conditioning equipment like On-line Uninterruptible Power Supplies, Off-line & Line Interactive UPS, Constant Voltage Transformers and Servo Voltage Transformers. In Constant Voltage Transformers, the AC mains powers the input winding which is widely separated physically form the isolated output winding. The input winding normally runs at very moderate Flux linkage levels. The output winding exhibits on intrinsic energy storage characteristic and this energy storage operates in conjunction with mains capacitor to produce self-generated AC flux field which is indirectly excited from the input windings.