How npn and pnp transistor works

1200

What is the technical difference between On delay timer and a Star delta timer?

1684

What do you mean by a phase angel of instrument transformer?

1158

A 50Hz,4-pole,3-phase,star-connected synchronous motor has a synchronous reactance of 12ohmsper phase and negligible armature resistances.the excitation is such as to give an open-circuit voltage of 13.2kilovolt.the motor is connected to 115kilovolt, 50hertz supplying. what maximum load can be the motor torque,line current and power factor?

2528

Can anyone provide with a SLD for HT panel installation for a 33KV line and distribution end has three 1.5MV transformers. Is it suitable to use OCB or VCB and also provide me the suitable rating and its connection diagram.

3410

what is the difference between directional & non directional earth fault with example please explain.

1898

DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

2100

Explain how you intend to work under pressure to meet up with deadline target?

2442

PLEASE INFORM ABOUT THE IDEAL TEST RESULTS OF MAGNETIC BALANCE TEST OF TRANSFORMER 33/11 kv DELTA-STAR T/F

2268

write a c++ code that receives an integer number and display the sum of the number and its revers integer?

2086

Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

2203

checking procedure of capacitor based motors.used in fans etc?

2183

ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

2162

Can RCD's used to protect the VVVF drive if not why.

2209

what is distribution board?

2358