Intelligent capacitor box
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Smart capacitor cabinet OVE600 adopts the modular design idea, each smart capacitor in the smart capacitor cabinet can be
networked with each other, but also as an independent operation device, in line with the requirements of intelligence,
miniaturization, high performance and safety performance, high reliability, pay attention to environmental protection, etc.,
so that the maintenance of the smart capacitor cabinet is very simple and has a cost-effective advantage.
OVE600 series smart capacitor cabinet is designed for the power network harmonic content is large, ordinary power capacitors
can not operate normally, it uses special technology and process, by linear series electrical appliances and industrial
low-voltage power capacitor combination, so this product is mainly used in harmonic serious places, capacitors can operate
reliably, The capacitor will not overheat, the insulating medium will not age, the self-healing performance will not decrease,
and the service life will not be reduced.
Main function
1. Filter function
In the case of harmonics in the user's load, it can filter out the interference of harmonics to the user, eliminate the amplification
effect of capacitors on harmonics, eliminate resonance, reduce and limit harmonic current and flicker current, protect
equipment, and compensate reactive power.
2. Measurement
Distribution voltage, current, reactive power, power factor measurement; CT phase and ratio automatic measurement and
correction; Measurement of three-phase current and internal temperature of each capacitor.
3. Protection
Circuit current cutting and overcurrent protection; Capacitor overvoltage, undervoltage protection; Capacitor overtemperature,
phase break, three-phase unbalance protection.
4. Signal number
Capacitor switching state, over and under state, over and under voltage state signal; Protection action type, self-diagnosis fault
type signal.
5, fast casting
The minimum capacitor switching time can be set for 1S.
6. Communication
CAN communication is used between the intelligent capacitor and the controller, which is easy to upload a large amount of
sampled data and exchange information with the peripheral monitoring terminal, and easy to integrate the system.
7, intelligent network control
It can automatically detect and track the reactive power change of the system, and automatically switch the capacitor bank.
Capacitors with the same capacity are switched on according to the principle of cycle switching, capacitors with different
capacities are switched on according to the principle of suitable complement. Capacitor first return, first return first investment;
The capacitor with low operating temperature is cast first, and the capacitor with high operating temperature is withdrawn
first. When the compensation condition is constant, the capacitor is switched on and off every 15 minutes to avoid a single
capacitor being put into operation for a long time.
