1,Building containing 25 flats how much Amp 3 pole MCCB are required?
2, For the safey of each flat how many Amp RCCB can install -loaded with A/C
whis is the formula of converting KW into HP ?
in our 6.6kv motor feeder[it is having two sources from Bus A&B] earth fault relay is acting, we checked CBCT connection and cable meggerd values found very good still earth fault acting during first two are three start after that it will hold. please clarify what was the reason. if same motor is starting from other Bus-A it will start.
Why do we need ring main unit (RMU). what is its purpose and its advantages . what is the operating function of rmu
What is the range of efficiency of thermal or steam power plants? Why it is so low?
what is power factor? is it good or bad for a system? what will happen if power factor increase or decrease?
how unidirectional torque is produced in DC motor?
What is difference between dc three point starter and dc four point starter?
Why current transformer is earthed??
what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth
What is Difference Between static & Dynamic Pressure of Fan & Blowers
WHY ARMAD USE IN CABLE
In dc ckt. 24v or 110v, which one is more efficient and why?
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