One phase failure or phase sequence under voltage.
Operates on the principle of sensing negative sequence components of the system. Suitable for the protections of motors of any H.P. Protection against single phasing, reverse phasing, unbalance supply, under/over voltage. Variable trip voltage setting for under/over voltage protection. Fixed unbalance trip setting at 40 volts.
One phase failure or phase sequence under voltage, under water safe motor.
Protection of induction motors against single phasing or reverse phasing or unbalance supply is one of the major problems in electrical systems. For safe running of 3-phase motors, special protections that keep a continuous watch on supply conditions are very essentials. The major cause of maxium motors burn-out is overloading which occurs due to unbalance supply or single phasing.
One phase failure or phase sequence under voltage, Delay time to start motor.
Magnum Single Phasing Voltage Sensing Preventor with Auto Start Unit is a powerful electronic circuit which prevents three phase operated electrical machines from single phase cut off, phase sequence reversal and unbalanced voltage. It can be used for any three phase motor of any HP.
Star to Delta purpose.
The major cause of maxium motors burn-out is overloading which occurs due to unbalance supply or single phasing. Phase failure occurs in case of fuse blown-off, loose connections or loss of phase from supply itself.
Under water level on time and off time set automatic.
A cyclic timer with independently adjustable ON and OFF periods, which can be adjusted via two PC board mounted trimmer potentiometers. Programmable Timer Integrated Circuits which will send a signal to the relay circuit once it reaches a specific count of cycles generated by the oscillator.