Product Description
ZN85 40.5 vacuum circuit breaker
1, indoor type
2, 3phase
3, rated voltage: 40.5kv
4, apply for GB IEC
36kv vacuum circuit breaker
Type ZN85-40.5 indoor alternating current high voltage vacuum circuit breaker
Usage and Characteristics
Type ZN85-40.5 indoor alternating current high voltage vacuum circuit breaker is applicable for the three-phase AC 50Hz. 40.5kv power system. It can used as the protective and contorl device in the industrial and mining enterprise. Power plant and substation. It is applicable for frequently operation.
The circuit breaker meet the requirements of state standard GB 1984 Alternating current high voltage circuit breaker and JB3855 3.6-40.5kv indoor alternating current high voltage vacuum circuit breaker
Service and Environmental Condition
1, Ambient Temperature: -25° C~+40° C, Daily mean: ≤ 35° C
2, Relative humidity: Daily mean ≤ 95%, monthly mean ≤ 90%, Water Vapor: Daily mean ≤ 2.2Mpa
3, Water Vapor: Monthly mean ≤ 1.8Mpa
4, Sea-level Altitude: ≤ 1000m
5, no dust, smoke, corrosive and inflammable gas, vapor, salt spray or strenuous vibration.
6, The amplitude of electromagnetic interference induced in the auxiliary circuit: ≤ 1.6KV
Main Technical Parameters
| No. |
Item |
Unit |
Data |
| 1 |
Rated voltage |
KV |
40.5 |
| 2 |
Rated insulation level |
Power frequency withstand voltage 1min (effective value) |
KV |
95 |
| Lightning impulse withstand voltage (effective value) |
KV |
185 |
| 3 |
Rated current |
A |
1000 1250 1600 2000 |
| 4 |
Rated frequency |
Hz |
50 |
| 5 |
Rated short - time withstand current |
KA |
20 25 31.5 |
| 6 |
Rated peak withstand current |
KA |
50 63 80 |
| 7 |
Rated short-circuit breaking current |
KA |
20 25 31.5 |
| 8 |
Rated short circuit making current(peak value) |
KA |
50 63 80 |
| 9 |
Rated Short-circuit Continuing Time |
S |
4 |
| 10 |
Rated operating sequence |
|
C-0.3s-CO-180s-CO |
| 11 |
Breaking time |
ms |
<80 |
| 12 |
Rated short circuit breaking current times |
time |
20 |
| 13 |
Single capacitor unit breaking current |
A |
630 |
| 14 |
Machinery life |
Time |
10000 |
| 15 |
Rated operating voltag |
V |
-110/~110,-220/~220 |
