Answer Posted / nagaraju

when transmission voltage exceeds 30kv/cm breaking voltage
occurs due to this ionization will take place around the
conductor follwed by hissing noise ,color appearing ,light
glowing finally corona

how to ctrl motor by use of ac or dc drive.plz explain evdintly

2054

---

whatis the commertial spec. of distribution boards ?

2084

---

What are the effects of electrical faults?

1040

---

What is Anemometer used to measure?

1136

---

why US countries maintains 110v and 60HZ

2197

---

circuit diagram of trip circuit supervision relay

2054

---

what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?

1448

---

when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

1985

---

Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

1649

---

how to test YNyn0 vector group in transformer?

3904

---

if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

1916

---

Explain the operation of grid connected central solar inverter ?

1544

---

Explain different types of d.c motors? Give their applications

1136

---

I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

3818

---

surge tank, hrc fuse, earthing transformer, firm power objective type

1644

---