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A product overview
This device is suitable for AC 50HZ, rated voltage 0.4KV, outdoor power transformation and distribution system of urban power network reactive power automatic compensation device, and operation management.
Devices meet the requirements of outdoor running unattended, its intelligent, complete protection, protection class, high and low temperature and humidity environmental performance measures reasonably designed, thoughtful and reliable.
Running automated management to adapt to the urban network of low voltage distribution transformer, the devices have data collection, storage, communication and other functions.

 Second, the basic working principle

1 control part
(1) device on the low voltage side of transformer and distribution of three-phase voltage, current phase acquisition, integrated treatment program logic, switching capacitor bank orders issued in due course.
(2) sampling physical quantities for reactive current, eliminates switching shocks and compensation in the process of switching, the device is stable and has a high compensation accuracy.
(3) the capacitor switching group implemented logical combinations of coding and looping control, grading and delicate, discipline and network are equal, extend the life of compensate electric.
2, automatic cycles per device and distribution transformer monitoring health, directed to monitor a device and distribution transformer.
3, automatic sampling grid parameters.
Up priority 4, monitoring of fault alarm function.
5, a monitoring centre could be the more relay stations, each hop may 6 on communication lines, each communications line could pick up 30 units.
6, wireless communication method can be used.