VT28-12(24)系列户内高压交流真空断路器

产品名称

VT28-12(24)系列户内高压交流真空断路器

产品图片

适用范围Application Range

适用于三相交流50Hz、额定电压为12kV电力系统的户内开关设备，作为工厂企业、发电厂及变电站电气设施的控制和保护单元。

It is applicable to indoor switchgear of three phases AC 50Hz, rated voltage of 12KV power system, as the control and protection unit of factory enterprise, power plant and substation electric utility.

产品特点Product Features

真空断路器总体结构采用操动机构和灭弧室前后一字排开布置的形式，隔离开关、接地开关与断路器集成一体，与FT8负荷开关的外形与尺寸完全相同。开关为一体化侧装式结构设计，其包括安装机架、支撑绝缘筒、负荷开关、隔离开关、接地开关及操动机构。

1.小型化：宽度、高度尺寸小，可实现柜体宽度500mm，电缆接线高度≥650mm；

2.一体化：负荷开关（断路器）、隔离开关、接地开关一体式设计，开关可以倒装；

3.隔离开关分闸状态时，隔离刀对地距离扔大于125mm；

4.开关装在柜内后仍可进行机械特性测试；

5.完善的“五防”联锁装置、具有手动和电动两用操作功能。

The overall structure of the vacuum circuit breaker adopts the form of operation mechanism and arc-extinguishing chamber arranged one line before and after. The disconnector, fhe earthing switch and the circuit breaker are integrated to one unit, which has the same appearance and dimensions of FT8 load switch. The switch is designed to integrated side-installed structure, which includes installed frame, supporting insulating cylinder, load switch, disconnector, earthing switch and operation mechanism.

1. Miniaturization: Smaller width and height, which may realize the switchgear width of 500mm, the cable wiring height is not less than 650mm；

2. Integration: The integration design of the load switch, the disconnector, the earthing switch and fuse, the switch may he inverted to installed；

3. When the disconnector is in the state of open, the distance between isolating knife to earthing is still more than 125mm;

4. The switch may also be tested of mechanical characteristic after it is installed in the switchgear；

5. Perfect “five prevention” interlocking device, which has two operation functions of manual and motor.