Ab-3s-12 Series of Outdoor High-Voltage Vacuum Circuit Breakers Oil Transformer Power Distribution Cabinet

       Ab-3s-12 series circuit breaker is a new generation of intelligent vacuum circuit breaker on the column developed by our company, integrating advanced technology at home and abroad, taking advantage of the strength of many families, adopting a new design concept and using high-tech means. The product can be used as the switch of 10kV side and 10kV outlet of main transformer of 35kV substation, as well as the switch on the column of distribution network. It can easily realize control, protection, measurement and communication when combined with various control units produced by the company. It is the preferred equipment for realizing automation and miniaturization of distribution network.

Types of meaningNormal service conditions
Working environment temperature: no more than 40C; The average daily temperature does not exceed 35C; The lowest ambient air temperature is -25C;

Air relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%; The average water vapor pressure 8 is not greater than 2.2kpa; The monthly average is no more than 1.8kPa;

Altitude: not more than 2000m;

The surroundings are not visibly contaminated by dust, smoke, corrosive and/or flammable gases, vapors or salt spray;

Vibration or ground motion from outside the switchgear and control equipment is negligible;

The amplitude of induced emi in the secondary system is not more than 1.6kV.
Dimensions and mounting dimensions

Main technical parametersStructural characteristics of
1, magnetic (permanent magnet) mechanism, so that a large number of parts, closing power greatly reduced, stable and reliable, no regular maintenance. Ensure that the operation sequence of the reclosing device (t1-0.3s, t2-3s, t3-3S, latching) is successfully completed;

2, using imported outdoor epoxy as external insulation material, light weight, long life, good weather resistance, no oil, no SF6, meet the requirements of environmental protection.

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

4, adopt integrated sensor technology to realize the on-line monitoring of the device;

5. Adopt synchronous closing technology to realize synchronous closing of circuit breaker and effectively suppress operating overvoltage and inrush current;

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

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

8, with fast protection function, make the distribution network in the absence of master station cooperation, also can automatically complete isolation and restore power supply, greatly improve the reliability of power supply;

9. Online judgment of single-phase grounding fault and warning or tripping can be realized without additional configuration;

10. Adopting temperature measurement and temperature correction technology, the device can achieve high accuracy under various temperature conditions;

11, specially designed power management module can provide automatic conversion of 2 auxiliary power input lines (AC1 10V or AC220V), monitor the battery and control the battery charging voltage and charge and discharge power;

12, friendly interface, full Chinese display, easy to set up;

13, all stainless steel manufacturing, no rust, really maintenance free.The main function

1. Protection: there is no time limit current current break, timing overcurrent, reverse time overcurrent, direction overcurrent, over voltage, under voltage protection;

2, control: local operation and remote control, can also be in accordance with the preset program action;

3, automation: can automatically achieve line fault location, fault isolation, restore power supply, parameter analysis, etc.

4, according to the requirements of automatic low-frequency load shedding, capacitor automatic switching, etc., and through GPRS or special communication network timely report fault information;

5, communication: support TCP/IP protocol, support GPRS CAN rs232/485 communication port, support a variety of communication protocol (DNP3.0,IEC101, etc.)

6, it can record and store operation, operation and failure parameters, protect the setting of fixed parameters can be field and remote programming;

7, can monitor the mechanical parameters of the device online, arc extinguishing chamber, etc.;

8, the circuit breaker can realize synchronous closing, effectively inhibit the operation of overvoltage and inrush current, especially suitable for capacitor operation.
Appearance and installation dimensions
Ab-3s-12 series circuit breakers have a variety of installation methods, common with a single rod installation of double rod installation. For user site installation, the company according to the actual situation into the design.

The high-voltage inlet terminal and high-voltage outlet terminal of AB-3S-12 series circuit breaker are connected by double-nut reverse rotation. When connecting the body and the control box, special connection cable can be used, the bottom of the box should have at least 100mm manual operation gap.