Answer / s raghavendra

for different types of applications different kinds of switches are required . for starting of induction motors especially 3-phase squerriel cage induction motors at start it consumes more current to stop that we keep the switch in star position and after it attains 70-80percent of rated speed switch is kept in delta mode as already backemf will be generated which reduces currrent and like this there are many applications......................................

installation of subsatation of33kv

0 Answers  

---

What will be the excat cable specification in Sq MM...please find the details below.... Induction Motor HP:55 Amps:70(starting Amps),45(Running Amps). Volts:415

1 Answers  

---

The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

0 Answers  

---

what is strip power factor?

0 Answers   TATA,

---

how to select the power contactor in Diffrent AC motors.

6 Answers   Titan,

---

Why Cables are always circular and not square or rectangular?

3 Answers  

---

what you mean by transformer neutral earthig

1 Answers   IOCL,

---

what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

0 Answers  

---

Why shunt Generator is not recommended to start at ON LOAD condition???

3 Answers  

---

what is the major difference between dc generator and synchronous generator?

4 Answers  

---

what is the reason for connecting hvdc monopolar line with negative conductors

0 Answers  

---

hou we find and calculate the maximum lode capesity of transforer?

1 Answers  

---