|
1.Outline
The ZN65 - 12 vacuum circuits-breaker are 3 ~ 10KV, in the 50HZ three phase ac system indoors power distribution equipment, supposes spare as the control and the protection high pressure electricity, is suitable for the frequent operation place. This product main characteristic is:
1. series consummations: Nominal current from 630A to 4000A; The rating short-circuit current from 25KA to 50KA, may satisfy the user each kind of need.
2. suitably matches the nature well: May match to KYN18C - 10 and KYN3A - 10 and so on has the domestic advanced level the switching gear, simultaneously may match to KYN3 - 10, JYN3 - 10 and so on the domestic ordinary use switching gear.
3. technical parameters high: The rating short-circuits the pass to gather the electric current (peak value), the rating moves steadily grades the technical parameter to be higher than the present national standard the stipulation.
4. this circuit breaker uses on the current international most advanced miniaturized copper chromium contact longitudinal magnetic field explosion chamber. Explosion chamber technology parameter high, full capacity accumulation switch number of times many, dams the current the level to be low.
5. users may according to own need to choose glass case, ceramic shell in two kind of explosion chambers wilfully one kind, moreover the same specification two kinds of two kind of explosion chambers may exchange.
6. reliability high: The advanced reasonable structural design, the excellent manufacture as well as strict leaves the plant the examination, has guaranteed this product redundant reliability.
7. outlooks artistic are novel.
2.uses environmental condition
2.1. Ambient temperature: -25 ℃ ~ +40 ℃ ;
2.2. Altitude above sea level: <= 1000m;
2.3. Relative humidity: Daily average <= 95%, monthly mean <= 90%;
2.4. Earthquake intensity: <= 8;
2.5 Uses the place: Does not have the fire, the explosion hazard, the serious contamination, chemistry corrosion and the fierce vibration place;
3.The technical parameter (main technical parameter sees next table:)
|
Serial number |
Fixed parameter |
Unit |
Parameter value |
|
1 |
Rated voltage |
KV |
12 |
|
2 |
Fixed insulation level |
1min labor frequency Durable voltage （ has effect value ） |
KV |
42 |
|
Lightning surge durable voltage (peak value) |
KV |
75 |
|
3 |
Auxiliary return route 1min labor frequency pressure resistance |
V |
2000 |
|
4 |
Nominal frequency |
Hz |
50 |
|
5 |
Nominal current |
A |
630、1000、1250、1600、2000、2500、3150、4000 |
|
6 |
The rating short-circuits the durable electric current |
KA |
25、 25、 31 . 5、 40、 50 |
|
7 |
Fixed peak value durable electric current |
KA |
50、 63、 100、 130、 130 |
|
8 |
Heat-stable time |
s |
4 |
|
9 |
The rating short-circuits the pass to gather the electric current (peak value) |
KA |
50、 63、 100、 130、 130 |
|
10 |
The rating short-circuits the drop-out current |
KA |
25、 25、 31 . 5、 40、 50 |
|
11 |
Fixed operation sequence |
|
C－0 . 3 s－CO－180 s－CO
C－180 s－CO－180 s－CO |
|
12 |
Fixed single condenser bank drop-out current |
A |
630 |
|
13 |
Fixed back to back condenser bank drop-out current |
A |
400 |
|
14 |
Gathers floodgate time |
ms |
65 ± 10 |
|
15 |
Minute floodgate time |
ms |
55 ± 10 |
|
16 |
The rating short-circuit current opens breaks the number of times |
|
50、 30、 20 |
|
17 |
Mechanical life |
|
20000、 10000 |
|
18 |
Stored energy electrical machinery rated voltage |
V |
AC：110、220； DC：110、 220 |
|
19 |
Minute floodgate electro-magnet rated voltage |
V |
AC：110、220； DC：110、 220 |
|
20 |
Gathers floodgate electro-magnet rated voltage |
V |
AC：110、220； DC：110、 220 |
4、 outlooks and install the size (to see attempt:)
 |
