M b control & systems manufactures an intelligent multi-stage power factor controller [series s5], which is available in six stages and twelve stages. The multi-stage power factor controller also supplies digital indication power factor. Required pf and sensitivity can be adjusted via the front panel potentiometers fitted in the multi-stage power factor controller. Ct ratio and delay time can also be aadjusted at site. To enhance life of capacitor banks the capacitor bank selection sequence can be chosen. The multi-stage power factor controller from m b control can be operated in auto or manual mode. Test features are also provided with the multi-stage power factor controller. Even after power is switched off, the programmed data is preserved in non volatile memory of the power factor controller. This multi-stage power factor controller from m b control provides alarm for failure of capacitor bank. This panel mounting [panel cut out 138 x 138 mm, depth 70 mm] controller is accommodated in strong abs plastic case. Multi-stage power factor controller from m b control is suitable for operation up to 60°c ambient temperature.
