Visión general
El disyuntor de vacío de media tensión para exteriores ZW32-24 (en lo sucesivo, el disyuntor) es un equipo de distribución para exteriores con una tensión nominal de 24 kV, CA trifásica de 50 Hz. Se utiliza principalmente para cortar y cerrar la corriente de carga, la corriente de sobrecarga y la corriente de cortocircuito del sistema eléctrico. Se aplica a la subestación y las empresas industriales y mineras en el sistema de energía para la protección y el control de uso, más adecuado para la red eléctrica rural y el lugar de operación frecuente.
Modelo Significado
| ZW |
32 |
|
24 |
1 |
T |
630 |
|
20 |
G |
|
□ |
| ↓ |
↓ |
|
↓ |
|
↓ |
↓ |
|
↓ |
↓ |
|
↓ |
En el exterior
Vacío
Circuito
Interruptor |
Diseño
secuencia
número |
|
Rated
tensión(kV) |
|
Ammunition
handling
mecanismo |
Rated
corriente(A) |
|
Rated
cortocircuito
rompiendo
corriente(kA) |
Cinta
aislamiento |
|
S mano
ejercicio
Delectric
ejercicio |
Quoted Standard
1. GB 1984-2003 AC high voltage circuit breaker
2. GB 3309-1989 Mechanical test of high voltage switchgear at room temperature
3. GB 5582-1993 The pollution level of insulating high voltage electric power equipment
4. GB 1985-2004 AC high voltage isolation switch and earthing switch
5. GB/T 11022-1999 Common technical requirement for high voltage switch equipment and control equipment standard
6. GB 16927.1-1997 The first part of high voltage test techniques: General test requirements
7. DL/T 402-2007 Technical conditions for AC high voltage circuit breaker order
8. DL/T 593-2006 The common technical specification of high voltage switch equipment and control equipment standards
Principales parámetros técnicos
| Tensión nominal |
kV |
24 |
Rated insulation
level |
1 min power
frequency withstand
tensión |
Dry test |
kV |
65/79(isolation fracture) |
| Wet test |
kV |
50/64(isolation fracture) |
| The auxiliary circuit and control circuit |
kV |
2 |
| Lightning impulse withstand voltage (peak) |
kV |
125/145(isolation fracture) |
| Frecuencia nominal |
Hz |
50 |
| Corriente nominal |
A |
6301250 |
| Rated operating sequence |
|
O-0.3s-CO-180s-CO |
| Corriente asignada de corte en cortocircuito |
kA |
16 20 |
25 |
| Rated short-circuit closing current(peak) |
kA |
40 50 |
63 |
| Corriente nominal de pico soportada |
kA |
40 50 |
63 |
| Corriente nominal de corta duración |
kA |
16 20 |
25 |
| Rated short circuit duration |
S |
4 |
| Rated short-circuit breaking current times |
Times |
20/25 |
| Breaking Times of rated current |
Times |
10000 |
| Hora de cierre |
ms |
20~80 |
|
Under maximum operating voltage |
ms |
20~80 |
| Hora de apertura |
Under rated operation voltage |
ms |
20~80 |
| Under lowest operating voltage |
ms |
20~80 |
| Full off time |
Times |
≤100 |
| Vida mecánica |
J |
10000 |
| Switch on power |
W |
70 |
| Energy storage motor rated input power |
V |
≤70 |
| Rated operational voltage and auxiliary circuits rated voltage |
V |
DC,AC 220 |
| Energy storage time under rated voltage |
S |
≤8 |
| Overcurrent release |
Corriente nominal |
A |
5 |
| Tripping current accuracy |
% |
±10 |
Circuit Breaker After Assembly And Adjustment Should Meet The Requirements Of Table 2
| ltem |
Unidad |
Parameter |
| Open clearance between contacts |
mm |
13±1 |
| Contactar con overtravel |
mm |
3±1 |
| Velocidad media de apertura |
m/s |
1.5±0.2 |
| Velocidad media de cierre |
m/s |
0.8±0.2 |
| Tiempo de rebote al cerrar el contacto |
ms |
≤3 |
| Three-phase tripping over the same period of time |
ms |
≤2 |
| DC resistance of circuit for every phase(with isolating switch) |
μΩ |
≤60(150) |
| Allowable wear thickness for dynamic and static contact |
mm |
3 |
| Phase center distance |
mm |
380±1.5 |
| The closing state rated contact spring pressure |
N |
2000±200 |
Circuit Breaker Equiped Isolation Switch Rated Parameters
| ltem |
Unidad |
Parameter |
| Tensión nominal |
KV |
24 |
| Frecuencia nominal |
Hz |
50 |
| Corriente nominal |
A |
1250 |
| Corriente nominal de pico soportada |
kA |
50 |
| Corriente nominal de corta duración |
kA |
20 |
| Rated short circuit duration |
S |
4 |
| Vida mecánica |
Times |
2000 |
| Isolation switch fracture operation torque |
N*m |
≤300 |
| Contact blade spring pressure |
N |
300±30 |
Rated terminal static
mechanical load |
Horizontal longitudinal load |
N |
500 |
| Horizontal transverse load |
N |
250 |
| Vertical force |
N |
300 |
Operating Conditions
1. Ambient air temperature: The daily temperature variation: -40℃ ~+40℃ diurnal variation of temperature less than 25℃;
2. Altitude: no more than 2000 meters
3. Wind speed is no more than 35m/s (equivalent to 700Pa on the surface of the cylindrical);
4. Ice cover thickness no more than 10mm;
5. The intensity of sunshine not more than 1000W/m ²
6. Pollution degree no more than GB 5582 IV class
7. Seismic intensity does not exceed 8 class
8. No flammable, explosive, chemical corrosion and severe vibration place
9. the conditions of use exceed the above-mentioned regulations, it shall be determined through consultation between the user and the manufacturer.
Overall And Mounting Dimensions (mm)
1. lower outlet
2. current transformer
3. Upper Inlet
4. Insulating pillar
5. The vacuum interrupter
6. wire guides
7. flexible connection
8. Insulated tension pole
9. actuator
10. case
