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1、 Outline
The ZN63 - 12 vacuum circuits-breaker are 3 ~ 10kV, in the 50Hz three phase ac system indoors power distribution equipment, may supply in the industry and mining enterprise, the power plant, the transformer substation as the electric appliance equipment protection and the control using of, specially is suitable to the request does not have the oiling, the few overhauls and the frequent operation use place, the product may dispose in the center sets at in the cabinet, the double-decked cabinet, the fixed cabinet supposes spare as the control and the protection high pressure electricity. This product main characteristic is:
1. reliability high: Under the nominal current, allows to break the number of times to reach as high as 20,000 time. Under the fixed short-circuit current, experiments breaks number of times 50.
2. functions complete: But ideal Opens together resistance, Rong Xing, perceptual load.
3. few maintenances, usually only needs to hold the drive mechanism to do few sweeps clear or the lubrication.
4. has used the vertical insulation bushing, may defend each kind of environment the influence. Thus, circuit breaker suitable Yu Gezhong special environmental condition.
5. has the integrity the product series parameter: Its nominal current from 630A to 3150A; The rating short-circuits the drop-out current from 20kA to 50kA.
6. fixed short-circuits the pass to gather the electric current fixed (peak value), moves technical parameter standard and so on the steady state current is higher than the present country standing operating procedure. Front
7. products left the plant completely carry on the machinery based on the reliable principle to wear in experienced, guarantee product reliability.
8. products series nature, the versatility are good, user maintenance easy to operate. The product conforms to GB - 1,984, DL403 as well as the IEC standard 56 and the 694th publication and so on the present standing operating procedure.
3、 The technical parameter (sees next table:)
|
Serial number |
Fixed parameter |
Unit |
Parameter |
|
1 |
Rated voltage |
kV |
12 |
|
2 |
Fixed
Insulation level
|
1 1min labor frequency bears voltage ( Has Effect value ) |
kV |
42 |
|
Lightning surge standing 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、100、1250、1600、2000、2500、3150 |
|
6 |
The rating short-circuits the drop-out current |
kA |
20、25、31.5、40、50 |
|
7 |
4s thermally stable electric current |
kA |
20、25、31.5、40、50 |
|
8 |
The rating short-circuits the pass to gather the electric current (peak value) |
kA |
50、63、100、130 |
|
9 |
The rating moves the steady state current |
kA |
50、63、100、130 |
|
10 |
Fixed single condenser bank drop-out current |
A |
630 |
|
11 |
Fixed back to back condenser bank drop-out current |
A |
400 |
|
12 |
Fixed operation sequence |
|
Minute … 0.3s … Gathers the minute
… 180s … Gathers the minute
Minute … 180s … Gathers the minute
… 180s … Gathers the minute |
|
13 |
Gathers the knife switch time |
ms |
60 ＋10 －15 |
|
14 |
Minute floodgate time |
ms |
60 ＋10 －15 |
|
15 |
The rating short-circuit current opens breaks the number of times |
|
50 |
|
16 |
Mechanical life |
次 |
20000 |
|
17 |
Burns the arc time |
ms |
≤ 15 |
|
18 |
Sound of something astir contact permission attrition accumulation thickness |
mm |
3 |
|
19 |
Fixed operation voltage |
Gathers floodgate coil |
V |
AC：110、220； DC：110、220 |
|
Minute floodgate coil |
V |
|
20 |
Coil power |
Gathers floodgate coil |
W |
245 |
|
Minute floodgate coil |
W |
|
21 |
Stored energy electrical machinery power |
W |
70 |
|
22 |
Stored energy electrical machinery rated voltage |
V |
DC：110、220 |
|
23 |
Stored energy time |
s |
≤ 15 |
4、 External dimensions: (Sees attempts:)
Chart 5ZN63A-12 indoors a.c. high voltage vacuum circuit-breaker outlook dimensional drawing
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