'inputs'

Salient Features Maintenances Free(no moving part) Very Fast Correction Speed. High Efficiency & 87% Zero Voltage Potential between Output, neutral and ground. Protected Against overload/Short circuit ARMO CVTs are based on static, Magnetic (Ferroresonant) Principle. The input winding normally runs at very moderate levels of flux linkage. The output winding exhibits an intrinsic energy storage characteristic and this energy storageco-operates in conjunction with mains capacitors to produce self-generated AC flux fields which is indirectly excited from the input winding.This results in instantaneous voltage regulation,no transient,no spikes,sine wave output,noise less operation and high isolation between inputs and outputs.

Low Burden Wide operating voltage range Wide frequency setting range 39. 00 to 70. 00 Hz Independently adjustable tripping stages. Consistent accuracy (± .03 Hz) Unaffected by voltage fluctuations Insensitive to harmonics & transient Built in timer(.1 to 99.9 Sec.) Built in event recorder for last three events. Under frequency & over frequency relay with 2 to 4 frequency stages. Adjustable under voltage blocking level. Field Adjustable relay rated frequency One operate time can give to each frequency stage. Protection stages can be separately blocked via internal blocking inputs. Application ARMO UFT frequency relays are used to monitor the frequency of an electrical system. Due to inadvertent splitting of inner connection in power system, isolated areas of the system may become deficient in the generation & frequency of the same may drop considerably giving rise to emergency conditions. In order to maintain control of system tinder this low frequency emergency some form of grated load shedding in needed. ARMO UFT relay is used to detect such condition & initiate load shedding to prevent complete system collapse.