Power Factror Correction System
The power meter factor correction system is designed to correct the power meter’s reading value,which can finally help the utility redeem the economic loss caused by power meter’s deviation or error. The system can help the utility reduce 10% economic loss,which also means it will increase 10% revenue to the utility or other kind of power supply sectors.
Product features
The basic principle of this system : At the secondary terminal of PT, the device collects signal to analog voltage, then carries out a transformation to digital light signal sending to receiver in control room, which is then reduced to an analog voltage signal that is measured by the power meter. In order to improve reliability, the system has a back-up power supply and automatic diagnosis and fault switching function. which guarantees a continuous and reliable measurement of electrical energy.
Signal switching function
In normal condition, voltage signals of electric energy meter is received from the Zero Voltage drop receiver. Once the device is faulty and the output is not normally, the device automatically detects it and switches to PT secondary voltage to continue to measure. This avoids the electric energy’s loss. The device give an acoustic alarm and signal switching light is on at the same time. The receiver can switch automatically so that the digital signal is converted to a voltage signal to the power meter.The electric energy measurement has no losses in the switching process.
Lacking phase alarm fuction
When any fiber (or voltage signal) is disconnected or wrong，The device beeps acoustic alarm and signal switching light is on, the signal is switched to PT secondary voltage signal to continue to measure. The energy measurement has no loss.
Dry contact function
In normal condition, once the dry contact is disconnected. When the device gives an acoustic alarm, dry contact is connected. This can be transmit signal to remote control unit.
Technical Specifications
1.Voltage signal accuracy: rated primary voltage 80%——120%, ahead of 0.05%.
2.Work environment temperature range:
Indoor part A：-5℃—+40℃
outdoor part B：-5℃— +55℃. C：-30℃—+55℃
3.Electromagnetic compatibility: IEC 60044-7 GB/T 20840.7-2007
4. Optical fiber standard: 4 - core
multimode, core diameter: 62.5/125, numerical value aperture≥0.27
