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Help CenterZN28-12C Seires of Withdrawable HV Indoor Vacuum Circuit Breaker
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ZN28-12C Seires of Withdrawable HV Indoor Vacuum Circuit Breaker
ZN28-12(C) withdrawable type indoor HV vacuum circuit breaker can be matched with switchgear JYN2-12 (Z). It is widely used for 12kV voltage systems which is accordance with GB1984-2003 standards. Products include: Vacuum circuit breaker truck, isolation truck, PT truck,
Measurement truck and truck for substation.
Structural characteristics:
1. This vacuum circuit breaker adopts air insulation; it can meet air distance and creepage
under normal run condition.
2. The operating mechanism can use CD17 or CT17, the outlet line has good adaptation
for the requirements of vacuum interrupters. It has high reliable with characteristics of long life and easy maintenance.
1.Ambient temperature: -10°C~+40°C.
2.The height above sea level: ≤ 1000 m (Not including special requirements).
3. Relative humidity: the average humidity of a day should be no more than 95%,the average humidity of a month should be no more than 90%.
4. Saturated vapor pressure: the average pressure of a day should be no more than 2.2kPa; the average pressure of a month should be no more than 1.8Kpa.
5. Earthquake intensity: not exceed 8 degrees.
6. It should be installed in places without fire, explosion, serious filth,
and chemical erosion and violent vibration.
Serial No. |
Item |
Unit |
Specification |
||
1 |
Rated voltage |
kV |
12 |
||
2 |
Rated frequency |
Hz |
50 |
||
3 |
Rated current |
A |
630, 1250, 1600 |
630, 1250, 1600 |
630, 1250, 1600 |
4 |
Rated short-circuit breaking current |
kA |
20 |
25 |
31.5 |
5 |
Rated short-circuit breaking current breaking times |
TIMES |
30 |
||
6 |
Rated short-circuit closing current(peak value) |
kA |
50 |
63 |
80 |
7 |
Rated dynamic stability current |
50 |
63 |
80 |
|
8 |
Rated thermal stability current |
20 |
25 |
31.5 |
|
9 |
Rated thermal stability time |
S |
4 |
||
10 |
Closing time |
≤0.2 |
|||
11 |
Opening time |
≤0.06 |
|||
12 |
1min power frequency withstand voltage |
kV |
42 |
||
13 |
Mechanical life |
TIMES |
10000 |
||
14 |
Rated operation sequence |
|
0-0.3S-CO-180s-0 |
||
15 |
Model of operating mechanism |
|
CD17 I, CT19 I |
CD17 II, CT19 II |
|
16 |
Rated operation voltage of operating mechanism opening&closing coil |
V |
CD17:DC110, DC220 CT19:AC110, AC220,AC380, DC48, DC110, DC220 |
||
1.Over 20 years of manufacturing experience with good quality & stable product performance.
2. Hossin provides full line of MV-HV electrical products, including drop-out fuse, disconnector, surge arrester, vacuum circuit breaker, fuse, load switch, insulator etc.
3. Quick feedback, Timely quotation, Fast delivery
4. Complete set of testing machine to ensure product quality.
5. Hossin can customize non-standard product as per client’s requirement.
6. Hossin sells pressing parts& pressing mould at low price.
7. Hossin offers electrical installation & commission service.
To order the vacuum circuit breaker, please let us know below info:
1. Rated Voltage
2. Rated Current
3. Rated Breaking Current
4. Fixted type or Draw-out Type
Send Inquiry to This Supplier
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