You are here: Home > Products > MV CT & PT
Rated voltage |
KV |
12(IEC) |
17.5 (IEC) |
12(GB) |
24(GB) |
36 (IEC) |
|||||||
Rated frequency |
Hz |
50/60 |
50/60 |
50 |
50 |
50 |
|||||||
Rated impulse withstand voltage |
Between phases and to earth |
KV |
75 |
95 |
75 |
125 |
170 |
||||||
Between breaks |
KV |
85 |
110 |
85 |
145 |
195 |
|||||||
Rated power frequency withstand voltage 50Hz,1min |
Between phases and to earth |
KV |
42 |
45 |
42 |
65 |
70 |
||||||
Between breaks |
KV |
42 |
60 |
48 |
79 |
80 |
|||||||
Rated short circuit making current(peak) |
KA |
67 |
50 |
50 |
50 |
50 |
|||||||
Rated peak withstand current |
KA |
82 |
82 |
50 |
50 |
50 |
|||||||
Short time withstand current |
KA |
25/2s |
25/2s |
20/4s |
20/2s |
20/2s |
|||||||
31.5/2s |
|||||||||||||
Rated active load switch breaking current |
A |
630 |
1250 |
630 |
1250 |
630 |
1250 |
630 |
630 |
||||
Rated closed-loop breaking current |
A |
630 |
1250 |
630 |
1250 |
630 |
1250 |
630 |
630 |
||||
Rated cable charging breaking current |
A |
10 |
10 |
10 |
16 |
21 |
|||||||
Main circuit resistance |
μ Ω |
≤105 |
≤105 |
≤105 |
≤105 |
≤105 |
|||||||
Phase distance (center distance) |
mm |
150/170/210 |
170/210 |
170/210 |
235/275 |
360 |
|||||||
Rated current of fuse switch disconnector |
A |
100 |
100 |
100 |
100 |
100 |
|||||||
Maximum fuse current of the fuse switch disconnector |
A |
125 |
125 |
125 |
125 |
50 |
|||||||
Main circuit resistance the fuse switch disconnector |
μ Ω |
≤250 |
≤250 |
≤250 |
≤250 |
≤250 |
|||||||
Rated short circuit breaking current of fuse switch disconnector |
KA |
31.5 |
31.5 |
31.5 |
31.5 |
31.5 |
|||||||
Rated short circuit making current of fuse switch disconnector (peak) |
A |
80 |
80 |
80 |
80 |
80 |
|||||||
Rated transfer current of fuse switch disconnector |
A |
1200 |
1200 |
1200 |
800 |
200 |
|||||||
Maximum operating torque |
Switch disconnector, with K type single spring operating mechanism |
close |
Nm |
≤120 |
≤120 |
≤120 |
≤120 |
≤120 |
|||||
open |
Nm |
≤120 |
≤120 |
≤120 |
≤120 |
≤120 |
|||||||
Fuse switch disconnector, with A type double springs operating and energy-stored mechanism |
Energy-stored and close |
Nm |
≤120 |
≤120 |
≤120 |
≤120 |
≤120 |
||||||
open |
Nm |
≤3 |
≤3 |
≤3 |
≤3 |
≤3 |
|||||||
Shaft corner |
degree |
120 |
120 |
120 |
120 |
120 |
|||||||
Close speed |
m/s |
≥6 |
≥6 |
≥6 |
≥6 |
≥6 |
|||||||
Open speed |
m/s |
4.5~6 |
4.5~6 |
4.5~6 |
4.5~6 |
4.5~6 |
|||||||
Three phase close synchronism |
m/s |
≤3 |
≤3 |
≤3 |
≤3 |
≤3 |
|||||||
Mechanical life |
time |
≥2000 |
≥2000 |
≥2000 |
≥2000 |
≥2000 |
|||||||
Remark:(1) NALF36 can only equipped with A type double springs operating and energy-stored mechanism. (2) According to the actual requirements, different operation modes like manual, manual with shunt tripping, electrical and electrical shunt tripping are available. |
E Type Switch Disconnector with Earthing Switch |
|||||
Rated voltage |
KV |
12(IEC) |
17.5(IEC), 12(GB) |
24(GB) |
40.5(GB) |
Rated short circuit making current(peak) |
KA |
40 |
40 |
40 |
40 |
Rated peak withstand current |
KA |
40 |
40 |
40 |
40 |
2S short time withstand current |
KA |
16 |
16 |
16 |
16 |
Closing operating torque |
Nm |
≤120 |
≤120 |
≤120 |
≤120 |
Opening operating torque |
Nm |
≤120 |
≤120 |
≤120 |
≤120 |
Mechanical life |
time |
≥2000 |
≥2000 |
≥2000 |
≥2000 |
Phase distance (center distance) |
mm |
150/170/210 |
170/210 |
275 |
360 |