High Break Liquid-Crystal Display Intellect Integration Power Capacitor
Code and implication
Technical parameters
Power
Parameters | Rated voltage | AC-400V (deviation≤±10%,distortion sine wave<5%) |
| Rated current | AC 0∽5A (current harmonics<10%,Current input impedance ≤0.02 Ω) |
| Frequency | 50Hz | Power consumption | ＜0. 5W |
| Measurementaccuracy | Voltage | ≤0. 5% | Current | ≤0. 5% |
| Power | ≤0. 5% | Power Factor | ±0. 01% |
| Time | ≤100ms | Temperature | ±1℃ |
| Network | Networking Number | ≤128 return circuit | Networking initialization time | ≤10s |
| Environment | Temperature | －30∽+60℃ |
| | Relative humidity | 90%RH (when 20℃ non-condensing) |
| Switching interval | Single≧20s (increased when more than one network use) |
| Capacitors single maximum capacity | Three-phase compensation (30+30kVar;
single-phase compensation 30kVar |
| Capacitors decay rate | ≤0. 5%/year |
| Capacitor failure rate | ≤5%/year(working 60000h) |
| Allows switching frequency | ≧ 1000000 times |
| Communication Interface | RS 485, CAN |
Functional characteristics
- Intelligent measuring and control system
The sampling system of current and voltage adopts 32-bitbuilt-in MCU made by Corex-M4,able to collect the signals quickly, it can realize the high accuracy of measuring three-phase current, voltages, active power, reactive power,transparent power and etc system parameters,calculating and analysis of harmonic waves.
- Human and machine exchange system
Displaying monitor adopts LCD panel, Chinese m nu,display the inner temperature,current,voltage and harmonic parameters at real time,push keys to seek the parameters and running status, also able to set over-voltage,under-voltage, under-current,over-temperature,over/under compensation data,can be saved in case of power failure.
- Intelligent connecting with system
Rs485 comm port, built-in MODBUS-RTU protocol,able to realize remotely monitoring and controlling. When several products are connected with system in parallel, they will automatically produce one master machine,the others become the slave machines,forming a reactive power compensation system; if one of machine is out of service it does not influence on others operating, if the master machine exit the working,the system will auto produce anew master machine,highly intelligent operation.
- Intelligent switching system
Really switching through zero current, auxiliary transistor circuit is not needed, this system adopts the independent CPU to control the switching operation at passing zero.switching at zero,no surging current, no arcing,fast response,improve the reliability and service life of the equipment.
Cooperated with high performance power capacitors,good radiation,small size,long service life,consequently it can ensure the complete-set equipment with high safety and reliability.
