ABB双电源开关保护器ATS021适用断路器Emax2原装现货可发性能

使用微信扫描二维码分享朋友圈，成交更快更简单！

ABB双电源开关保护器ATS021适用断路器Emax2原装现货可发性能

ABB双电源自动转换开关（ATS，160至1600 A）具有可靠功能和特性，在生产车间、码头、机场和数据中心等一系列广泛应用中帮助客户实现安全供电。
ABB为旗下的自动转换开关提供了3种具有不同功能的控制器，分别是OMD200、OMD300和OMD800。
节省安装空间和成本
优化空间利用
尺寸紧凑，可安装在更小的开关柜中 东莞
降低停机时间进而降低维护成本
通过熔断器防止电机过电流；任何情况下都支持带负载手动操作。
易于使用
OMD控制器具有界面友好型界面，菜单支持8种语言。
The role of the change-over switch
One of the key functions related to a Gen-set is the changeover
switching when the main power source fails.
This function is maintained with a change-over switching
device according to IEC 60947-6-1 norm. The change-over
switch is typically a dedicated switching device, consisting
of two mechanically interlocked switch-disconnectors and a
motor operator for electrical operation. The switching device
might also have an integrated automatic control unit, enabling
a full automatic operation of the switching device. Therefore
the change-over switches can be operated manually or
electrically by using an electric motor.
This solution also fulfills the requirement for making and
withstanding short-circuit currents (Class PC equipment).
Usually, the switch has three positions:
- Position I: load connected to the line
- Position II: load connected to the Gen-set
- Position 0: intermediate position which ensures that the load
is never connected to both power sources; can eventually
be used to isolate the load from both sources
When the load is properly powered by the main source, the
switch remains in “I” position.
A control unit processes the signals coming from the voltage
sensors.
Sensors normally monitor if voltage amplitude, frequency and
other parameters on the load fall within predefined limits.
When the control unit detects a fail condition, it sends a
command and speed stability after a start-up period.
Switching usually does not happen immediately after the
failure of the main power: this prevents to power the load with
voltage levels and frequencies different from nominal values.
As long as this voltage is not within the thresholds and is not
stabilized, the switch remains stationary in position 0 or I.
After the stabilization the switch can change to position “II”.
The load is powered by the generator until the line returns
within limits. At this point, the control unit sends a command
to move the switch to position I and, after a transitional period
needed to ensure a slow cooling, the engine is turned off