lb6-110
lb7-220
main features of the product:
1. oil-paper capacitive insulation, uniform electric field distribution and excellent insulation performance.
2. the limit seal is adopted to solve the problem of easy cracking and aging of the sealing rubber and improve the sealing performance.
3. the oil drain valve is sealed for the second time, making it easy to take oil in vacuum and ensuring that the product is not susceptible to moisture and oil leakage.
main technical parameters:
|
parameter name |
unit |
parameter name | ||
|
equipment model |
|
lb6-110 |
lb7-220 | |
|
rated voltage of equipment |
kv |
110 |
220 | |
|
maximum equipment voltage |
kv |
126 |
252 | |
|
rated power-frequency withstand voltage (effective value) |
kv |
230 |
395 | |
|
rated lighting impulse withstand voltage (peak value) |
kv |
500 |
950 | |
|
rated primary current |
a |
100～2000 |
200～2500 | |
|
rated secondary current |
a |
1, 5 | ||
|
rated short-time thermocurrent (1 s) |
kv |
45（1s） |
31.5（3s） | |
|
rated dynamic stable current (effective value) |
kv |
160 |
120 | |
|
number of secondary windings |
nrs |
4～5 |
5～6 | |
|
creepage distance |
mm/kv |
25 or 31 | ||
|
measurement |
accuracy level |
|
0 2s, 0.5s, 0.2, 0.5 | |
|
instrument security factor |
|
fs5, fsl0 | ||
|
protection |
accuracy level |
|
5p, 10p | |
|
accuracy limit factor |
|
10, 20, 30 | ||
|
rated output capacity |
va |
20～50 | ||
|
amount of partial discharge |
um |
pc |
10 | |
|
1.2um/ |
5 | |||
|
dielectric loss factor tan δ |
|
≤0.005 | ||
|
dielectric loss factor of end shield tan δ |
|
≤0.02 | ||
|
mechanical strength |
n |
2000 |
2500 | |
|
weight |
kg |
550 |
1400 | |