Mine Furnace Low Voltage Short Net Dynamic Reactiv

详情

Parameters of device
 1, Operating environments and conditions
 Maximum temperature: **5℃
 Minimum temperature: **5℃
 Elevation: ≤ ***0m
 Relative humidity: *0%
 Filth degree: Ⅲ
Installation site: indoor or outdoor
 2, Control objective: power factor 0.*5 ~ 0.*9
 Grid connection side harmonic content conforming to GB/T *******3 Quality of electric energy supply - Harmonics in public supply network
 3, Response time: the mine furnace low voltage short net dynamic reactive compensation device response time is ≤**0ms.
 4, Terminal controller technical index:
 Basic parameters:
 Power supply voltage: AC **0V ±*0%
: *0HZ ±5%
 Sampling voltage: AC **0V
 Sampling current: **5A
 Measurement precision:
 Voltage: ±0.2% Current: ±0.2%
 Active power: ±0.5% Reactive power: ±0.5%
 Power factor: ±0.5%


Device features
 The cluster switch consisting of contactless switch and AC contactor allows the automatic switching and continuous and frequent capacitor bank switching without impairing the service life of switch and capacitor;
 The thyristor flexible switching technology solves the problems of transient impulse, switching-on rush current, electric arc re-strike and discharge required for secondary switching-on of the capacitor;
 After the contactless switch thyristor switching on the capacitor, the running current of capacitor only passes the main contact of AC contactor while the thyristor is not conducted. In this way, the AC contactor will not generate arc upon switching on and the power loss of thyristor itself is eliminated;
 This device is equipped with series reactor, which can both restrain the system harmonic current magnification and absorb partial harmonic current to make the system voltage and current waveform smoother.