AB-3S-12 630-25 outdoor vacuum circuit breaker 12KV

Service condition

1. Altitude: ≤ 2000m;
2. Ambient temperature: -40°C~+40°C
3. Wind speed: 34m/s
4. Earthquake intensity: ≤8 degree
5. Ambient pollution: IV 
6. Ice thickness: 10mm
7. Applicable occasions should be free from inflammables, explosives, corrosives and severe vibrations.

New tech feature

Using magnetic actuation (permanent magnet) mechanism, the parts are greatly reduced, the closing power is greatly reduced, stable and reliable, without regular maintenance. Ensure the smooth completion of the operation sequence of the recloser (t1-0.3s, t2-3s, t3-3s, locking);

Using imported outdoor epoxy as external insulation material, light weight, long life, good weather resistance, no oil, no SF6, in line with environmental requirements.

Using advanced DSP chip, set control, protection, measurement, communication in one, so that the system has advanced design, super function.

The integrated sensor technology is adopted to realize the on-line monitoring of the device.

Synchronous closing technology is adopted to realize synchronous closing of circuit breakers and effectively suppress operating overvoltage and inrush current.

Flexible communication mode, support general wireless packet service (GPRS), support Chinese and English short message;

Sampling up to 128 points per week and fast FFT conversion provide high speed and high precision data from fundamental wave to 19th harmonic wave for line measurement and protection.

With fast protection function, the distribution network can automatically isolate and restore power supply without the cooperation of the main station, which greatly improves the reliability of power supply.

The single-phase grounding fault can be judged online without additional configuration, and the alarm or tripping can be given according to the rule.

The temperature correction technology is adopted to make the device achieve high precision under various temperature conditions.

Technical parameter