How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

1201

Keywords: Die, Card, Coin, B/N 2 To 12

804

how to calculation increase power factor for single phase

1824

solar inverters was not connected to the nuteral link .this nutwral possible to any other systems

1353

how to calculate the no load current in transformer?

1982

Advantages/Disadvantages of earthing of neutral bus on MSB instead of separate neutral earthing for transformer/DG sets feeding to MSB

2313

what is th basic difference between a d latch time line and a d flip flop time line???

1469

to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????

1498

WHAT IS MEANT BY SHEATH VOLTAGE IN 132Kv cable?

1819

what is the difference between unarmoured & Flexible cable? How to identified?

5439

IN SINGLE PH TRANSFORMER IF LEKAGE IMPEDANCE DROP IS NEGLECTED ,THE FLUX IN THE MAGNETIC CORE and the lekage flux linking a winding are a)proportional to the applied v to the winding i respectively.

1634

why and where we use early make & late break contacts in protection?

7618

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

1858

What are the classifications of oscillators?

684

If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?

939