Description
|
S.No |
Particulars |
33KV |
11 KV |
|
1 |
Number of poles |
3 nos |
3 nos |
|
2 |
Frequency |
50 cycles |
50 cycles |
|
3 |
Nominal system voltage |
33 KV |
11 KV |
|
4 |
Highest system voltage |
36 kv |
12 kv |
|
5 |
Interrupting capacity at nominal system voltage |
1500 mva |
1500 mva |
|
6 |
Rated continuous current |
1250 amp |
1250 amp |
|
7 |
Short time current rating for 3 secs |
25 KA |
25 KA |
|
8 |
Basic insulation level |
170 KV |
75 KV |
|
9 |
Power frequency with stand voltage for one minute |
70 KV |
28 KV |
|
10 |
Total break time for any current upto the rated breaking current |
5 CYCLE (max) |
5 CYCLE (max) |
|
11 |
Control circuit voltage |
30 volt D.C. |
30 volt D.C. |
|
12 |
Operation duty for gang operation |
0-0.3 SEC |
0-0.3 SEC |
|
13 |
The VCBs shall be suitable for one reclsing followed by one delayed reclosing and lock out |
|
|
|
14 |
Between phases |
430 mm |
280 mm |
|
15 |
Between live parts and ground |
3700 mm |
2750 mm |
|
16 |
Creepage distance |
900 mm |
300 mm |
