Outline

BRE66-12 Type indoor high voltage dual power switching devices for AC 50Hz, rated voltage of 12kV, rated current up to 2000 high-voltage dual power supply system, a high voltage dual power supply system of the automatic switch, over-current, inrush current, short circuit, overvoltage and undervoltage protection purposes. This product realization high voltage double-circuit power supply on a reliable piece of equipment to convert, with small size, light weight, low investment, easy installation and so on. The product is designed to ensure that the two fully isolated high voltage power supply, while using sound and reliable mechanical and electrical interlocking, with a very high safety and reliability. The product is suitable for high power supply reliability and security requirements of dual power supplies for power users, as the control and protection equipment dual power supply system.

Adapt to the environment

1. The upper temperature limit high altitude environment + 40 ℃, lower limit of -25 ℃
2. The altitude does not exceed 1000m;
3. The daily average relative humidity less than 95%, on average less than 90%;
Daily average water vapor is not larger than 2.2 × 10-3 Mpa,
On average less than 1.8 × 10-3 Mpa;
The ambient air pollution from corrosion or obvious combustible gases, water vapor and the like.

Technical Parameters

The main structure and characteristics

1. The product is a metal sheathed Fixed design, side-mounted structure, arranged around the bus, the next line, the outlet, small size, easy installation.
2. Double-products from electric rotary isolating switch, vacuum circuit breakers, voltage transformers, current transformers and microprocessor core intelligent controller and other components, simple structure,
Reliable performance.
3. The product automatically detects the main power supply and backup power in case the main power off and automatically switch to standby power to ensure continuity of supply.
The products have reliable mechanical and electrical interlocks, industry "Five Anti" requirements, to ensure the safe operation of the product.
5. The simple manual operation designed to safely complete the main power supply and backup power conversion by manual operation.
6. electric rotary isolating switches support duplex three-position manually operated, has a manual inspection station and with a locking device can in the maintenance state, the main power supply and standby power off and
    Lock isolation switch, to prevent misuse of the product, to ensure that equipment and personal safety.
7. Product main circuit is linear layout, circuit resistance, low temperature rise, thermal performance.
8. complete product specifications, can be used in conjunction with a variety of switchgear, adapt to a variety of occasions.

3. How it works:

The lower part of the product for the electric rotary isolation switch, two working position, corresponding to the main power supply and backup power. In any case, the isolation switch only way the power is turned on, the other way in the off position. After the main power supply and standby power by turning the isolation switch selection, the current transformers, into the vacuum breaker, then the upper portion of the outlet from the product.
　　In normal operation, the rotary isolation switch connected to the main power circuit, vacuum circuit breaker closing by the main power supply to the load. When the intelligent controller detects that the primary power failure, the first vacuum circuit breaker, then turn isolation switch actuator circuit so isolating switch breaking from the main power supply, standby power is turned on at the same time. Finally, closing the vacuum circuit breaker to ensure the continuity of supply.
　　Intelligent control through the current transformer for detecting a load current. When the load current exceeds the current setting of intelligent controller, it will trigger overcurrent or short program, and by the set delay time (overcurrent) or immediate (short) made the opening command to the circuit breaker, rapid, accurate, Reliable fault removal. Main power supply and backup power line side are equipped with voltage transformer, not only provides a voltage signal to the intelligent controller, at the same time provide normal operating power to the product, the product can not rely on an external power supply.

Ordering Information
1. Order should provide the following information;
Figure 2. The first system solutions;
3. with container type and parameters;
The primary current and current transformer ratio, accuracy class and other parameters;
5. Other special requirements should be made together when ordering.