Technical Detailing Of The Product

Switching of capacitors through thyristors have distinct advantages over contactor switching. Thyristor is a solid state device unlike electro-mechanical contactors. Contactor is necessarily a moving component, hence have many disadvantages, like:

• Capacitors draw heavy inrush current at the time of switching “on”, resulting in reduced capacitor life.
• Minimum 60 seconds delay is required between two switching operations to allow capacitors to discharge. This is 600 seconds in case of HV capacitors. Thus contactor switching system cannot be used for fast variable loads. In our system capacitors are switched at “Zero” cross over, thus those can be switched “ON” even under fully charged condition.
• In case of thyristor switching the circuits can be designed to switch capacitors at “ZERO” cross over. This method allows the capacitor switching theoretically every alternate cycle.
• Such circuits are complicated but at “UDEET ELECTRICALS”, we have perfected this technology.
• All such systems manufactured by “UDEET ELECTRICALS” are simple to maintain. In fact complete maintenance & attending to faults can be done by a trained skilled electrician. However, maintenance of HV systems & SVCs need services of a skilled engineer.
• Switching of capacitors at fast rate is of great advantage in states like Maharashtra, Uttar Pradesh, Haryana, Delhi etc where the energy charges are calculated on the basis of kVAH consumption. Fast controlling of kVAh consumption, results in reduced energy & maximum demand charges.

We at Udeet Electricals envisaged this possibility & benefits of fast switching systems about 22 yrs back & prepared ourselves to meet the challenges. We were the “first company” in India to manufacture such systems with fully indigenous technology & locally available components.