Answer / aamod tripathi

IN GIS SF6 GAS IS USED FOR INSULATION.SINCE SF6 HAS HIGH
DIELECTRIC STRENGTH THAN AIR. AND THUS GIS IS USED FOR
HIGHER VOLTAGES AND REQUIRES MUCH LESS SPACE THEN AIS BUT
AT HIGHER COST.

Answer / a.yougaraj

AIS: AIR INSULATED SW. GR.
GIS: GAS INSULATED SW. GR.

Answer / eswari

GIS - Gas insulated substation
AIS - Air Inuslated Substation

GIS - high efficiency, requires less maintenance, less
space and less global warming when compared to AIS. but GIS
cost is two times higher than AIS.

Answer / janardhan reddy

IDENTIFICATION OF ERRORS IN GIS IS IS DIFFICULT AND IT WILL TAKE MORE TIME WHEN COMPARED TO AIS

Answer / jaideep

gis meanse
gas insulated substation
ais means air insulated substation
gis is of high cost than ais
but works efficiently
gis requres very less land when compared with ais
these are some differences there are many
but gis replaces ais in soon

For maintenance Department What type documention requir for ISo & TS audit

1 Answers   Megatron Solutions, Sams,

---

why ups in kva ratings?

2 Answers  

---

Please elaborate th´evenin’s theorem?

0 Answers  

---

Why we use DC for charging of Batteries??Why not AC Supply???

6 Answers   Emerson, Infosys,

---

What mean by MLTP

0 Answers   Machino,

---

---

why swityard is necessrry requirement in any bis power distributin systems?

0 Answers  

---

How do we calculate the Out put voltage of generator, after the excitation is being given?

0 Answers  

---

Why two main buses and one transfer bus scheme not using for 400kV switchyard

5 Answers  

---

what is stper motor.what is its uses

9 Answers   Bhel, HCL,

---

Brief difference btween aluminium & copper conductor

2 Answers  

---

how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?

0 Answers  

---

Why lightning arrester blast in rainy day?

1 Answers   Eco Cement, Mahaveer, MBDL,

---