Answer Posted / c.a.chokkalingam

As per India-IE Rules, Below 1000Volts is Low Voltage-LV & Above 1000V is High Voltage HV, When referring to Transmission Lines, Each line being stringed in Tension to withhold the weight of ACSR Conductor, hardware accesories & Current carrying with in, TLs are given in terms of HT or LT [11KV, 132KV, HT Line]
&
Referring to M/Cs it’s mentioned in terms of HV or LV [for an instance: 990KW, 11KV Ring Granulator]
There is one other Voltage Level-EHV or EHT, Above 132KV are EHT[ 220KV, 400KV & 765KV as such max. in india]

Thanks,
Chokkalingam

Plz let me know if there is any update.

which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

2053

---

What is distance between electrical panel to land ?

1553

---

detailed procedure how we calculate cost for pcc m10 and rcc m20 including centering and labour excluding steel/ iron

3136

---

On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?

1609

---

In parallel operation time both NGR’s close or not close if both close what will happen

3743

---

In MEP Services what are parts of STP and what are there function?

3558

---

why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?

3156

---

In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.

2171

---

In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.

1963

---

How does cost of generation from hydropower plant compare with other sources of electricity?

1065

---

IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8

3872

---

What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.

1349

---

how to identify vector group of three phase transformer by voltage method?

1634

---

Hoe do calculate the Cable size for Amps rating ?

2173

---

CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

1888

---