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ZW32-12 Outdoor Vacuum Circuit Breaker
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln
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Product Details
● ZW32-12 outdoor MV vacuum circuit breaker is the outdoor distribution equipment with rated voltage 12KV, three phase AC 50Hz. It is used in substation and industrial and mining enterprises distribution system for protecting and controlling use. It is also used in rural power grid places with frequent operation for breaking and closing the load current and over load current and short circuit current of power system.
● The out insulation of the vacuum interrupter adopts silicone rubber casing, with longer life, higher reliability, good weather resistance, convenient for transportation, good rating. The operating mechanism adopts miniaturization, high reliable spring operation mechanism, has the advantages of simple structure, mechanical life up to 10000 times.
● This circuit breaker and controller can form a complete set as recloser, realize remote control, telemetry, remote communication, remote adjustment four remote function.Product features: no combustion and explosion hazards, maintenance free, small size, light weight (less than 100kg), long service life (million), safety and reliability, simple operation, convenient maintenance and installation.
● Can be equipped with power electronics PT for short distance remote control Can be equipped with dual power supplyautomatic
switching device and intelligentautomatic recloser prepaymentmetering automation system.
● Standard: IEC 62271-100.
Selection
Operating conditions
1. The environment temperature: upper limit +40℃, lower limit -30℃
2. Altitude ≤ 2000 meters
3. Wind pressure: no more than 700Pa (corresponding to the wind speed 34m/s)
4. Earthquake intensity: do not exceed 8 degree
5. Pollution grade: III class
6. Maximum daily temperature: less than 25℃ .
Technical data
| Item | Unit | Parameter | ||
| Voltage, current parameters | ||||
| Rated voltage | kV | 12 | ||
| Rated short time power frequency withstand voltage (1min) | kV | 42/48 | ||
| Rated lightning impulse withstand voltage (peak) | kV | 75/85 | ||
| Rated frequency | Hz | 50/60 | ||
| Rated current | A | 630 | 1250 | |
| Rated short-circuit breaking current | kA | 20 | ||
| Rated short-time withstand current (RMS) | kA | 20 | ||
| Rated peak withstand current | kA | 50 | ||
| Rated short-circuit closing current | kA | 50 | ||
| Rated single / back-to-back capacitor bank breaking current | A | 630/400 | ||
| Rated short-circuit current duration | S | 4 | ||
| Rated short-circuit current breaking times | Times | 50 | ||
| The main circuit resistance | μΩ | ≤80(140) | ||
| Rated operational voltage | AC/DC≌220 | |||
| Mechanical life | Times | 10000 | ||
| The overcurrent regulating ☆ | A | 1~10 | ||
| Quick-break current ☆ | A | 6~20 | ||
| The delay time ☆ | ms | 40~850 | ||
| Remote control distance ☆ | m | > 30 | ||
| Reclose time ☆ | Times | 0~3 | ||
| Rated operating sequence ☆ | O-0.3s-CO-180s-CO | |||
| CT ※ | Ratio | A | ()/5 | |
| Capacity | VA | 15 | ||
| The output voltage ※ | A | AC220 | ||
| The output capacity ※ | W | 600 | ||
| The overcurrent regulating ※ | A | 1~10 | ||
| The delay time ※ | ms | 40~850 | ||
| Remote control distance ※ | m | 30 | ||
Overall and mounting dimensions(mm)
1.upper outlet
2.arc extinguish chamber
3.the insulating cylinder
4.lower outlet
5.onductive clip
6.flexible connection
7.insulated tension pole
8.the pressure spring of contact
9.the opening spring
10.the drive connecting plate
11.the output shaft
12.actuator
13.mechanism case
14.current transformer
1.operating handle
2.spindle of solation
3.circuit breaker manualon-off handle
4.circuit breaker energy storage handle
5.on-off instructions
6.connection plug
7.current transformer
8.insulator
9.Isolation frame
10.insulated tension pole
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