Answer / ravi

It is nothing but a Dialer,

It is used in FAS,In the event of Alarm it will dail all
the pre programed numbers & send the the prerecorded voice
msg...

Answer / joy

a dialer in an FDAS will also automatically dial or call the
fire station number when fire alarm occurs or when the
building is on fire.

Why Aluminium wires are used for High tension(HT) lines? 11 KVA/32KVA & aboue

6 Answers  

---

Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

0 Answers  

---

what is the difference between neutral and earth

11 Answers  

---

What would be the steps and parameters in case if a fault occurs in transmission line at a distance far from the generating station?

0 Answers  

---

A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

---

How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

1 Answers  

---

what is fault level in 66kV system?

3 Answers  

---

Why stand-by earth fault relay and restricted earth fault relays are connected between neutral and ground in transformer?

1 Answers  

---

What are the protection schemes used for protection of transformers ?

3 Answers   Engineers India Limited,

---

which tap of the transormer you will use in critical condition(worst)?

1 Answers  

---

what type of motor is used in fan

6 Answers  

---

What is servo motor? what is its purpose?

0 Answers  

---