How would we calculate the no of earthing pits required
for motor /panel
- 5 Answers
- 22937 Views
- APGenco, National Engineering Industries, Practical Viva Questions, I also Faced
- E-Mail Answers
Answer Posted / syed rafiudeen
18. The GI conductor sizes shall be as listed below.
(1). HT switchgear, structures, cable trays & fence, rails,
gate and steel column
50 X 6 mm
(2). PCC & MCC EARTH PITS
50 X 6 mm
(3). DB
25 X 6 mm
(4). Motor rated above 55 KW & above
50 X 6 mm
(5). Motor rated above 22 KW & up to 55 KW
40 X 6 mm
(6). Motor rated above 5.5KW & up to 55KW
25 X 6 mm
(7). Motor rated up to 5.5 KW
8 SWG. GI wire
(8). Lighting panels & local panel
25 X 6 mm
(9). Control & relay panel
25 X 6 mm
(10). DG frame, excites
50 X 6 mm
(11). DG & TX’mer neutral
50 X 6 mm cu flat
(12). TX’mer body
50 X 6 mm
(13). Push button station
8 SWG. GI wire
(14). Receptacles & welding outlets
8 SWG. GI wire
(15). Lightning Arrestor
25 X 3 mm copper
(16). PLC & WF panels
25 X 3 mm copper
| Is This Answer Correct ? | 16 Yes | 5 No |
Post New Answer View All Answers
sir i used 3 hp of motor for spraying pump, other home light and other home items which size of allminium pvc wire ix used
On what cycle does thermal power plant operate?
how to design the heater in temperature control unit to heat 50KL of water?
What would be the size of wire used for 2 Ton of window A.C?
Draw transformer phasor diagram.(full load,no load)
hello!my name is sheikh iam preparing for indian engineering servieces,please send me the old question papers..to sheikhshaazforjobs@gmail.com
what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end
what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.
can anyone tell me can the electromagnetic waves can be reflected back?if so how &by which material it can be reflected back?please tell me so that it can help to my wireless power trasnmission device.
Starting current of a 10 HP induction Motor is ______ time’s full load current.
FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?
what is DRP panels?
What is Annunciation?
What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?
I completed my BE EEE degree 2006 .... which license should i apply .... ?????
