产品详情
产品属性：
安装方式：手车式
额定电流：3150A
额定开断电流：50kA
尺寸（相间距I）:275mm
适用运行温度:标准产品（-15℃至+40℃）
产地：ABB Calor Emag（德国一个工厂名）
标准货期:90天
|
区 别 |
VD4 |
HD4 |
|
灭弧介质 |
真空 |
SF6气体 |
|
灭弧特性 |
开断能力强，会出现截流现象，属硬开断特性 |
开断能力强，无截流现象，操作过电压低，为软开断特性 |
|
机械、电气寿命 |
30000 |
10000 |
|
开断次数 |
100 |
20 |
|
应用环境条件 |
-15℃ ～+40℃ |
SF6气体在温度较低时易液化 |
HD4-12参数：
Calor Emag
The name Calor comes from the Latin Word for heat, corresponding to the response criterion of these protec-tion switches. During this initial period, high- and medium-voltage switchgear was built in the Emag works, which took its name from the Elektrische Meßinstrumente --und Apparatebau-Gesellschaft (Electrical measuring Instrument and apparatus company).
Within a few years only, the young CALOR-EMAG was manufacturing a well-rounded range of products for customers in heavy industry, the basic chemicals sector, and power supply. Exports in the prewar period, however, remained within modest limits. Nevertheless, at the outbreak of war in 1939, CALOR-EMAG was employing a staff of over 1,500. The extensive destruction of the works meant that reconstruction after 1945 was a slow process.
Deliberations on minimum-oil circuit-breakers from before the war were taken up again. In 1949, the first circuit-breakers on this principle went into series production, and from then on, success of CALOR-EMAG was closely coupled with advances in circuit-breaker construction.
Together with the development of circuit-breakers, the 1950s saw the start of another test program, which was to have extremely far-reaching consequences:
- CALOR-EMAG was the first manufacturer systematically to concern itself with the effects of arcing in high-voltage switchgear installations. The result - new switchboard versions for operating voltages of up to 35 kilovolts (kV) in bl-clad design with withdrawable circuit-breakers - was a Iandmark in switchgear design.
- The world's fastest switching device - the Is-Iimiter - for handling of high short-circuit currents, the first SF6insulated high-voltage switchgear installation in the world, and switchgear cubicle designs for a variety of special applications (including both underground and open cast mining) were further milestones on the company's road to success.
